diff options
Diffstat (limited to 'src/gallium/auxiliary/draw')
51 files changed, 15926 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/draw/Makefile b/src/gallium/auxiliary/draw/Makefile new file mode 100644 index 0000000000..f2e36a89e9 --- /dev/null +++ b/src/gallium/auxiliary/draw/Makefile @@ -0,0 +1,49 @@ +TOP = ../../../.. +include $(TOP)/configs/current + +LIBNAME = draw + +C_SOURCES = \ + draw_context.c \ + draw_pipe.c \ + draw_pipe_aaline.c \ + draw_pipe_aapoint.c \ + draw_pipe_clip.c \ + draw_pipe_cull.c \ + draw_pipe_flatshade.c \ + draw_pipe_offset.c \ + draw_pipe_pstipple.c \ + draw_pipe_stipple.c \ + draw_pipe_twoside.c \ + draw_pipe_unfilled.c \ + draw_pipe_util.c \ + draw_pipe_validate.c \ + draw_pipe_vbuf.c \ + draw_pipe_wide_line.c \ + draw_pipe_wide_point.c \ + draw_pt.c \ + draw_pt_elts.c \ + draw_pt_emit.c \ + draw_pt_fetch.c \ + draw_pt_fetch_emit.c \ + draw_pt_fetch_shade_emit.c \ + draw_pt_fetch_shade_pipeline.c \ + draw_pt_post_vs.c \ + draw_pt_util.c \ + draw_pt_varray.c \ + draw_pt_vcache.c \ + draw_vertex.c \ + draw_vs.c \ + draw_vs_varient.c \ + draw_vs_aos.c \ + draw_vs_aos_io.c \ + draw_vs_aos_machine.c \ + draw_vs_exec.c \ + draw_vs_llvm.c \ + draw_vs_sse.c + + +include ../../Makefile.template + +symlinks: + diff --git a/src/gallium/auxiliary/draw/SConscript b/src/gallium/auxiliary/draw/SConscript new file mode 100644 index 0000000000..544a04918b --- /dev/null +++ b/src/gallium/auxiliary/draw/SConscript @@ -0,0 +1,45 @@ +Import('*') + +draw = env.ConvenienceLibrary( + target = 'draw', + source = [ + 'draw_context.c', + 'draw_pipe.c', + 'draw_pipe_aaline.c', + 'draw_pipe_aapoint.c', + 'draw_pipe_clip.c', + 'draw_pipe_cull.c', + 'draw_pipe_flatshade.c', + 'draw_pipe_offset.c', + 'draw_pipe_pstipple.c', + 'draw_pipe_stipple.c', + 'draw_pipe_twoside.c', + 'draw_pipe_unfilled.c', + 'draw_pipe_util.c', + 'draw_pipe_validate.c', + 'draw_pipe_vbuf.c', + 'draw_pipe_wide_line.c', + 'draw_pipe_wide_point.c', + 'draw_pt.c', + 'draw_pt_elts.c', + 'draw_pt_emit.c', + 'draw_pt_fetch.c', + 'draw_pt_fetch_emit.c', + 'draw_pt_fetch_shade_emit.c', + 'draw_pt_fetch_shade_pipeline.c', + 'draw_pt_post_vs.c', + 'draw_pt_util.c', + 'draw_pt_varray.c', + 'draw_pt_vcache.c', + 'draw_vertex.c', + 'draw_vs.c', + 'draw_vs_aos.c', + 'draw_vs_aos_io.c', + 'draw_vs_aos_machine.c', + 'draw_vs_exec.c', + 'draw_vs_llvm.c', + 'draw_vs_sse.c', + 'draw_vs_varient.c' + ]) + +auxiliaries.insert(0, draw) diff --git a/src/gallium/auxiliary/draw/draw_context.c b/src/gallium/auxiliary/draw/draw_context.c new file mode 100644 index 0000000000..36751c2621 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_context.c @@ -0,0 +1,394 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + +#include "util/u_memory.h" +#include "util/u_math.h" +#include "draw_context.h" +#include "draw_vbuf.h" +#include "draw_vs.h" +#include "draw_pt.h" +#include "draw_pipe.h" + + +struct draw_context *draw_create( void ) +{ + struct draw_context *draw = CALLOC_STRUCT( draw_context ); + if (draw == NULL) + goto fail; + + ASSIGN_4V( draw->plane[0], -1, 0, 0, 1 ); + ASSIGN_4V( draw->plane[1], 1, 0, 0, 1 ); + ASSIGN_4V( draw->plane[2], 0, -1, 0, 1 ); + ASSIGN_4V( draw->plane[3], 0, 1, 0, 1 ); + ASSIGN_4V( draw->plane[4], 0, 0, 1, 1 ); /* yes these are correct */ + ASSIGN_4V( draw->plane[5], 0, 0, -1, 1 ); /* mesa's a bit wonky */ + draw->nr_planes = 6; + + + draw->reduced_prim = ~0; /* != any of PIPE_PRIM_x */ + + + if (!draw_pipeline_init( draw )) + goto fail; + + if (!draw_pt_init( draw )) + goto fail; + + if (!draw_vs_init( draw )) + goto fail; + + return draw; + +fail: + draw_destroy( draw ); + return NULL; +} + + +void draw_destroy( struct draw_context *draw ) +{ + if (!draw) + return; + + + + /* Not so fast -- we're just borrowing this at the moment. + * + if (draw->render) + draw->render->destroy( draw->render ); + */ + + draw_pipeline_destroy( draw ); + draw_pt_destroy( draw ); + draw_vs_destroy( draw ); + + FREE( draw ); +} + + + +void draw_flush( struct draw_context *draw ) +{ + draw_do_flush( draw, DRAW_FLUSH_BACKEND ); +} + + + +/** + * Register new primitive rasterization/rendering state. + * This causes the drawing pipeline to be rebuilt. + */ +void draw_set_rasterizer_state( struct draw_context *draw, + const struct pipe_rasterizer_state *raster ) +{ + draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); + + draw->rasterizer = raster; + draw->bypass_clipping = + ((draw->rasterizer && draw->rasterizer->bypass_clipping) || + draw->driver.bypass_clipping); +} + + +void draw_set_driver_clipping( struct draw_context *draw, + boolean bypass_clipping ) +{ + draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); + + draw->driver.bypass_clipping = bypass_clipping; + draw->bypass_clipping = (draw->rasterizer->bypass_clipping || + draw->driver.bypass_clipping); +} + + +/** + * Plug in the primitive rendering/rasterization stage (which is the last + * stage in the drawing pipeline). + * This is provided by the device driver. + */ +void draw_set_rasterize_stage( struct draw_context *draw, + struct draw_stage *stage ) +{ + draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); + + draw->pipeline.rasterize = stage; +} + + +/** + * Set the draw module's clipping state. + */ +void draw_set_clip_state( struct draw_context *draw, + const struct pipe_clip_state *clip ) +{ + draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); + + assert(clip->nr <= PIPE_MAX_CLIP_PLANES); + memcpy(&draw->plane[6], clip->ucp, clip->nr * sizeof(clip->ucp[0])); + draw->nr_planes = 6 + clip->nr; +} + + +/** + * Set the draw module's viewport state. + */ +void draw_set_viewport_state( struct draw_context *draw, + const struct pipe_viewport_state *viewport ) +{ + draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); + draw->viewport = *viewport; /* struct copy */ + draw->identity_viewport = (viewport->scale[0] == 1.0f && + viewport->scale[1] == 1.0f && + viewport->scale[2] == 1.0f && + viewport->scale[3] == 1.0f && + viewport->translate[0] == 0.0f && + viewport->translate[1] == 0.0f && + viewport->translate[2] == 0.0f && + viewport->translate[3] == 0.0f); + + draw_vs_set_viewport( draw, viewport ); +} + + + +void +draw_set_vertex_buffers(struct draw_context *draw, + unsigned count, + const struct pipe_vertex_buffer *buffers) +{ + assert(count <= PIPE_MAX_ATTRIBS); + + memcpy(draw->pt.vertex_buffer, buffers, count * sizeof(buffers[0])); + draw->pt.nr_vertex_buffers = count; +} + + +void +draw_set_vertex_elements(struct draw_context *draw, + unsigned count, + const struct pipe_vertex_element *elements) +{ + assert(count <= PIPE_MAX_ATTRIBS); + + memcpy(draw->pt.vertex_element, elements, count * sizeof(elements[0])); + draw->pt.nr_vertex_elements = count; +} + + +/** + * Tell drawing context where to find mapped vertex buffers. + */ +void +draw_set_mapped_vertex_buffer(struct draw_context *draw, + unsigned attr, const void *buffer) +{ + draw->pt.user.vbuffer[attr] = buffer; +} + + +void +draw_set_mapped_constant_buffer(struct draw_context *draw, + const void *buffer, + unsigned size ) +{ + draw->pt.user.constants = buffer; + draw_vs_set_constants( draw, (const float (*)[4])buffer, size ); +} + + +/** + * Tells the draw module to draw points with triangles if their size + * is greater than this threshold. + */ +void +draw_wide_point_threshold(struct draw_context *draw, float threshold) +{ + draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); + draw->pipeline.wide_point_threshold = threshold; +} + + +/** + * Tells the draw module to draw lines with triangles if their width + * is greater than this threshold. + */ +void +draw_wide_line_threshold(struct draw_context *draw, float threshold) +{ + draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); + draw->pipeline.wide_line_threshold = threshold; +} + + +/** + * Tells the draw module whether or not to implement line stipple. + */ +void +draw_enable_line_stipple(struct draw_context *draw, boolean enable) +{ + draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); + draw->pipeline.line_stipple = enable; +} + + +/** + * Tells draw module whether to convert points to quads for sprite mode. + */ +void +draw_enable_point_sprites(struct draw_context *draw, boolean enable) +{ + draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); + draw->pipeline.point_sprite = enable; +} + + +/** + * Ask the draw module for the location/slot of the given vertex attribute in + * a post-transformed vertex. + * + * With this function, drivers that use the draw module should have no reason + * to track the current vertex shader. + * + * Note that the draw module may sometimes generate vertices with extra + * attributes (such as texcoords for AA lines). The driver can call this + * function to find those attributes. + * + * Zero is returned if the attribute is not found since this is + * a don't care / undefined situtation. Returning -1 would be a bit more + * work for the drivers. + */ +int +draw_find_vs_output(const struct draw_context *draw, + uint semantic_name, uint semantic_index) +{ + const struct draw_vertex_shader *vs = draw->vs.vertex_shader; + uint i; + for (i = 0; i < vs->info.num_outputs; i++) { + if (vs->info.output_semantic_name[i] == semantic_name && + vs->info.output_semantic_index[i] == semantic_index) + return i; + } + + /* XXX there may be more than one extra vertex attrib. + * For example, simulated gl_FragCoord and gl_PointCoord. + */ + if (draw->extra_vp_outputs.semantic_name == semantic_name && + draw->extra_vp_outputs.semantic_index == semantic_index) { + return draw->extra_vp_outputs.slot; + } + return 0; +} + + +/** + * Return number of vertex shader outputs. + */ +uint +draw_num_vs_outputs(const struct draw_context *draw) +{ + uint count = draw->vs.vertex_shader->info.num_outputs; + if (draw->extra_vp_outputs.slot > 0) + count++; + return count; +} + + + +void draw_set_render( struct draw_context *draw, + struct vbuf_render *render ) +{ + draw->render = render; +} + +void draw_set_edgeflags( struct draw_context *draw, + const unsigned *edgeflag ) +{ + draw->pt.user.edgeflag = edgeflag; +} + + + + +/** + * Tell the drawing context about the index/element buffer to use + * (ala glDrawElements) + * If no element buffer is to be used (i.e. glDrawArrays) then this + * should be called with eltSize=0 and elements=NULL. + * + * \param draw the drawing context + * \param eltSize size of each element (1, 2 or 4 bytes) + * \param elements the element buffer ptr + */ +void +draw_set_mapped_element_buffer_range( struct draw_context *draw, + unsigned eltSize, + unsigned min_index, + unsigned max_index, + void *elements ) +{ + draw->pt.user.elts = elements; + draw->pt.user.eltSize = eltSize; + draw->pt.user.min_index = min_index; + draw->pt.user.max_index = max_index; +} + + +void +draw_set_mapped_element_buffer( struct draw_context *draw, + unsigned eltSize, + void *elements ) +{ + draw->pt.user.elts = elements; + draw->pt.user.eltSize = eltSize; + draw->pt.user.min_index = 0; + draw->pt.user.max_index = 0xffffffff; +} + + +/* Revamp me please: + */ +void draw_do_flush( struct draw_context *draw, unsigned flags ) +{ + if (!draw->suspend_flushing) + { + assert(!draw->flushing); /* catch inadvertant recursion */ + + draw->flushing = TRUE; + + draw_pipeline_flush( draw, flags ); + + draw->reduced_prim = ~0; /* is reduced_prim needed any more? */ + + draw->flushing = FALSE; + } +} diff --git a/src/gallium/auxiliary/draw/draw_context.h b/src/gallium/auxiliary/draw/draw_context.h new file mode 100644 index 0000000000..0ab3681b64 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_context.h @@ -0,0 +1,172 @@ + +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * \brief Public interface into the drawing module. + */ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + + +#ifndef DRAW_CONTEXT_H +#define DRAW_CONTEXT_H + + +#include "pipe/p_state.h" + + +struct pipe_context; +struct draw_context; +struct draw_stage; +struct draw_vertex_shader; + + + +struct draw_context *draw_create( void ); + +void draw_destroy( struct draw_context *draw ); + +void draw_set_viewport_state( struct draw_context *draw, + const struct pipe_viewport_state *viewport ); + +void draw_set_clip_state( struct draw_context *pipe, + const struct pipe_clip_state *clip ); + +void draw_set_rasterizer_state( struct draw_context *draw, + const struct pipe_rasterizer_state *raster ); + +void draw_set_rasterize_stage( struct draw_context *draw, + struct draw_stage *stage ); + +void draw_wide_point_threshold(struct draw_context *draw, float threshold); + +void draw_wide_line_threshold(struct draw_context *draw, float threshold); + +void draw_enable_line_stipple(struct draw_context *draw, boolean enable); + +void draw_enable_point_sprites(struct draw_context *draw, boolean enable); + + +boolean +draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe); + +boolean +draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe); + +boolean +draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe); + + +int +draw_find_vs_output(const struct draw_context *draw, + uint semantic_name, uint semantic_index); + +uint +draw_num_vs_outputs(const struct draw_context *draw); + + + +/* + * Vertex shader functions + */ + +struct draw_vertex_shader * +draw_create_vertex_shader(struct draw_context *draw, + const struct pipe_shader_state *shader); +void draw_bind_vertex_shader(struct draw_context *draw, + struct draw_vertex_shader *dvs); +void draw_delete_vertex_shader(struct draw_context *draw, + struct draw_vertex_shader *dvs); + + + +/* + * Vertex data functions + */ + +void draw_set_vertex_buffers(struct draw_context *draw, + unsigned count, + const struct pipe_vertex_buffer *buffers); + +void draw_set_vertex_elements(struct draw_context *draw, + unsigned count, + const struct pipe_vertex_element *elements); + +void +draw_set_mapped_element_buffer_range( struct draw_context *draw, + unsigned eltSize, + unsigned min_index, + unsigned max_index, + void *elements ); + +void draw_set_mapped_element_buffer( struct draw_context *draw, + unsigned eltSize, + void *elements ); + +void draw_set_mapped_vertex_buffer(struct draw_context *draw, + unsigned attr, const void *buffer); + +void draw_set_mapped_constant_buffer(struct draw_context *draw, + const void *buffer, + unsigned size ); + +void draw_set_edgeflags( struct draw_context *draw, + const unsigned *edgeflag ); + + +/*********************************************************************** + * draw_prim.c + */ + +void draw_arrays(struct draw_context *draw, unsigned prim, + unsigned start, unsigned count); + +void draw_flush(struct draw_context *draw); + + +/******************************************************************************* + * Driver backend interface + */ +struct vbuf_render; +void draw_set_render( struct draw_context *draw, + struct vbuf_render *render ); + +void draw_set_driver_clipping( struct draw_context *draw, + boolean bypass_clipping ); + +/******************************************************************************* + * Draw pipeline + */ +boolean draw_need_pipeline(const struct draw_context *draw, + const struct pipe_rasterizer_state *rasterizer, + unsigned prim ); + + + +#endif /* DRAW_CONTEXT_H */ diff --git a/src/gallium/auxiliary/draw/draw_pipe.c b/src/gallium/auxiliary/draw/draw_pipe.c new file mode 100644 index 0000000000..3cde9d36d3 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe.c @@ -0,0 +1,287 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "draw/draw_private.h" +#include "draw/draw_pipe.h" + + + +boolean draw_pipeline_init( struct draw_context *draw ) +{ + /* create pipeline stages */ + draw->pipeline.wide_line = draw_wide_line_stage( draw ); + draw->pipeline.wide_point = draw_wide_point_stage( draw ); + draw->pipeline.stipple = draw_stipple_stage( draw ); + draw->pipeline.unfilled = draw_unfilled_stage( draw ); + draw->pipeline.twoside = draw_twoside_stage( draw ); + draw->pipeline.offset = draw_offset_stage( draw ); + draw->pipeline.clip = draw_clip_stage( draw ); + draw->pipeline.flatshade = draw_flatshade_stage( draw ); + draw->pipeline.cull = draw_cull_stage( draw ); + draw->pipeline.validate = draw_validate_stage( draw ); + draw->pipeline.first = draw->pipeline.validate; + + if (!draw->pipeline.wide_line || + !draw->pipeline.wide_point || + !draw->pipeline.stipple || + !draw->pipeline.unfilled || + !draw->pipeline.twoside || + !draw->pipeline.offset || + !draw->pipeline.clip || + !draw->pipeline.flatshade || + !draw->pipeline.cull || + !draw->pipeline.validate) + return FALSE; + + /* these defaults are oriented toward the needs of softpipe */ + draw->pipeline.wide_point_threshold = 1000000.0; /* infinity */ + draw->pipeline.wide_line_threshold = 1.0; + draw->pipeline.line_stipple = TRUE; + draw->pipeline.point_sprite = TRUE; + + return TRUE; +} + + +void draw_pipeline_destroy( struct draw_context *draw ) +{ + if (draw->pipeline.wide_line) + draw->pipeline.wide_line->destroy( draw->pipeline.wide_line ); + if (draw->pipeline.wide_point) + draw->pipeline.wide_point->destroy( draw->pipeline.wide_point ); + if (draw->pipeline.stipple) + draw->pipeline.stipple->destroy( draw->pipeline.stipple ); + if (draw->pipeline.unfilled) + draw->pipeline.unfilled->destroy( draw->pipeline.unfilled ); + if (draw->pipeline.twoside) + draw->pipeline.twoside->destroy( draw->pipeline.twoside ); + if (draw->pipeline.offset) + draw->pipeline.offset->destroy( draw->pipeline.offset ); + if (draw->pipeline.clip) + draw->pipeline.clip->destroy( draw->pipeline.clip ); + if (draw->pipeline.flatshade) + draw->pipeline.flatshade->destroy( draw->pipeline.flatshade ); + if (draw->pipeline.cull) + draw->pipeline.cull->destroy( draw->pipeline.cull ); + if (draw->pipeline.validate) + draw->pipeline.validate->destroy( draw->pipeline.validate ); + if (draw->pipeline.aaline) + draw->pipeline.aaline->destroy( draw->pipeline.aaline ); + if (draw->pipeline.aapoint) + draw->pipeline.aapoint->destroy( draw->pipeline.aapoint ); + if (draw->pipeline.pstipple) + draw->pipeline.pstipple->destroy( draw->pipeline.pstipple ); + if (draw->pipeline.rasterize) + draw->pipeline.rasterize->destroy( draw->pipeline.rasterize ); +} + + + + + + + +static void do_point( struct draw_context *draw, + const char *v0 ) +{ + struct prim_header prim; + + prim.flags = 0; + prim.pad = 0; + prim.v[0] = (struct vertex_header *)v0; + + draw->pipeline.first->point( draw->pipeline.first, &prim ); +} + + +static void do_line( struct draw_context *draw, + ushort flags, + const char *v0, + const char *v1 ) +{ + struct prim_header prim; + + prim.flags = flags; + prim.pad = 0; + prim.v[0] = (struct vertex_header *)v0; + prim.v[1] = (struct vertex_header *)v1; + + draw->pipeline.first->line( draw->pipeline.first, &prim ); +} + + +static void do_triangle( struct draw_context *draw, + ushort flags, + char *v0, + char *v1, + char *v2 ) +{ + struct prim_header prim; + + prim.v[0] = (struct vertex_header *)v0; + prim.v[1] = (struct vertex_header *)v1; + prim.v[2] = (struct vertex_header *)v2; + prim.flags = flags; + prim.pad = 0; + + draw->pipeline.first->tri( draw->pipeline.first, &prim ); +} + + + + +/* Code to run the pipeline on a fairly arbitary collection of vertices. + * + * Vertex headers must be pre-initialized with the + * UNDEFINED_VERTEX_ID, this code will cause that id to become + * overwritten, so it may have to be reset if there is the intention + * to reuse the vertices. + * + * This code provides a callback to reset the vertex id's which the + * draw_vbuf.c code uses when it has to perform a flush. + */ +void draw_pipeline_run( struct draw_context *draw, + unsigned prim, + struct vertex_header *vertices, + unsigned vertex_count, + unsigned stride, + const ushort *elts, + unsigned count ) +{ + char *verts = (char *)vertices; + unsigned i; + + draw->pipeline.verts = verts; + draw->pipeline.vertex_stride = stride; + draw->pipeline.vertex_count = vertex_count; + + switch (prim) { + case PIPE_PRIM_POINTS: + for (i = 0; i < count; i++) + do_point( draw, + verts + stride * elts[i] ); + break; + case PIPE_PRIM_LINES: + for (i = 0; i+1 < count; i += 2) + do_line( draw, + elts[i+0], /* flags */ + verts + stride * (elts[i+0] & ~DRAW_PIPE_FLAG_MASK), + verts + stride * elts[i+1]); + break; + case PIPE_PRIM_TRIANGLES: + for (i = 0; i+2 < count; i += 3) + do_triangle( draw, + elts[i+0], /* flags */ + verts + stride * (elts[i+0] & ~DRAW_PIPE_FLAG_MASK), + verts + stride * elts[i+1], + verts + stride * elts[i+2]); + break; + } + + draw->pipeline.verts = NULL; + draw->pipeline.vertex_count = 0; +} + +#define QUAD(i0,i1,i2,i3) \ + do_triangle( draw, \ + ( DRAW_PIPE_RESET_STIPPLE | \ + DRAW_PIPE_EDGE_FLAG_0 | \ + DRAW_PIPE_EDGE_FLAG_2 ), \ + verts + stride * ((i0) & ~DRAW_PIPE_FLAG_MASK), \ + verts + stride * (i1), \ + verts + stride * (i3)); \ + do_triangle( draw, \ + ( DRAW_PIPE_EDGE_FLAG_0 | \ + DRAW_PIPE_EDGE_FLAG_1 ), \ + verts + stride * ((i1) & ~DRAW_PIPE_FLAG_MASK), \ + verts + stride * (i2), \ + verts + stride * (i3)) + +#define TRIANGLE(flags,i0,i1,i2) \ + do_triangle( draw, \ + flags, /* flags */ \ + verts + stride * ((i0) & ~DRAW_PIPE_FLAG_MASK), \ + verts + stride * (i1), \ + verts + stride * (i2)) + +#define LINE(flags,i0,i1) \ + do_line( draw, \ + flags, \ + verts + stride * ((i0) & ~DRAW_PIPE_FLAG_MASK), \ + verts + stride * (i1)) + +#define POINT(i0) \ + do_point( draw, \ + verts + stride * i0 ) + +#define FUNC pipe_run_linear +#define ARGS \ + struct draw_context *draw, \ + unsigned prim, \ + struct vertex_header *vertices, \ + unsigned stride + +#define LOCAL_VARS \ + char *verts = (char *)vertices; \ + boolean flatfirst = (draw->rasterizer->flatshade && \ + draw->rasterizer->flatshade_first); \ + unsigned i; \ + ushort flags + +#define FLUSH + +#include "draw_pt_decompose.h" + +void draw_pipeline_run_linear( struct draw_context *draw, + unsigned prim, + struct vertex_header *vertices, + unsigned count, + unsigned stride ) +{ + char *verts = (char *)vertices; + draw->pipeline.verts = verts; + draw->pipeline.vertex_stride = stride; + draw->pipeline.vertex_count = count; + + pipe_run_linear(draw, prim, vertices, stride, count); + + draw->pipeline.verts = NULL; + draw->pipeline.vertex_count = 0; +} + + +void draw_pipeline_flush( struct draw_context *draw, + unsigned flags ) +{ + draw->pipeline.first->flush( draw->pipeline.first, flags ); + draw->pipeline.first = draw->pipeline.validate; +} diff --git a/src/gallium/auxiliary/draw/draw_pipe.h b/src/gallium/auxiliary/draw/draw_pipe.h new file mode 100644 index 0000000000..dbad8f98ac --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe.h @@ -0,0 +1,125 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#ifndef DRAW_PIPE_H +#define DRAW_PIPE_H + +#include "pipe/p_compiler.h" +#include "draw_private.h" /* for sizeof(vertex_header) */ + + +/** + * Basic info for a point/line/triangle primitive. + */ +struct prim_header { + float det; /**< front/back face determinant */ + ushort flags; + ushort pad; + struct vertex_header *v[3]; /**< 1 to 3 vertex pointers */ +}; + + + +/** + * Base class for all primitive drawing stages. + */ +struct draw_stage +{ + struct draw_context *draw; /**< parent context */ + + struct draw_stage *next; /**< next stage in pipeline */ + + struct vertex_header **tmp; /**< temp vert storage, such as for clipping */ + unsigned nr_tmps; + + void (*point)( struct draw_stage *, + struct prim_header * ); + + void (*line)( struct draw_stage *, + struct prim_header * ); + + void (*tri)( struct draw_stage *, + struct prim_header * ); + + void (*flush)( struct draw_stage *, + unsigned flags ); + + void (*reset_stipple_counter)( struct draw_stage * ); + + void (*destroy)( struct draw_stage * ); +}; + + +extern struct draw_stage *draw_unfilled_stage( struct draw_context *context ); +extern struct draw_stage *draw_twoside_stage( struct draw_context *context ); +extern struct draw_stage *draw_offset_stage( struct draw_context *context ); +extern struct draw_stage *draw_clip_stage( struct draw_context *context ); +extern struct draw_stage *draw_flatshade_stage( struct draw_context *context ); +extern struct draw_stage *draw_cull_stage( struct draw_context *context ); +extern struct draw_stage *draw_stipple_stage( struct draw_context *context ); +extern struct draw_stage *draw_wide_line_stage( struct draw_context *context ); +extern struct draw_stage *draw_wide_point_stage( struct draw_context *context ); +extern struct draw_stage *draw_validate_stage( struct draw_context *context ); + + +extern void draw_free_temp_verts( struct draw_stage *stage ); +extern boolean draw_alloc_temp_verts( struct draw_stage *stage, unsigned nr ); + +extern void draw_reset_vertex_ids( struct draw_context *draw ); + +void draw_pipe_passthrough_tri(struct draw_stage *stage, struct prim_header *header); +void draw_pipe_passthrough_line(struct draw_stage *stage, struct prim_header *header); +void draw_pipe_passthrough_point(struct draw_stage *stage, struct prim_header *header); + + + +/** + * Get a writeable copy of a vertex. + * \param stage drawing stage info + * \param vert the vertex to copy (source) + * \param idx index into stage's tmp[] array to put the copy (dest) + * \return pointer to the copied vertex + */ +static INLINE struct vertex_header * +dup_vert( struct draw_stage *stage, + const struct vertex_header *vert, + unsigned idx ) +{ + struct vertex_header *tmp = stage->tmp[idx]; + const uint vsize = sizeof(struct vertex_header) + + stage->draw->vs.num_vs_outputs * 4 * sizeof(float); + memcpy(tmp, vert, vsize); + tmp->vertex_id = UNDEFINED_VERTEX_ID; + return tmp; +} + +#endif diff --git a/src/gallium/auxiliary/draw/draw_pipe_aaline.c b/src/gallium/auxiliary/draw/draw_pipe_aaline.c new file mode 100644 index 0000000000..20841bb5d6 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe_aaline.c @@ -0,0 +1,914 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * AA line stage: AA lines are converted to texture mapped triangles. + * + * Authors: Brian Paul + */ + + +#include "pipe/p_inlines.h" +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_shader_tokens.h" +#include "util/u_math.h" +#include "util/u_memory.h" + +#include "tgsi/tgsi_transform.h" +#include "tgsi/tgsi_dump.h" + +#include "draw_context.h" +#include "draw_private.h" +#include "draw_pipe.h" + + +/** + * Max texture level for the alpha texture used for antialiasing + */ +#define MAX_TEXTURE_LEVEL 5 /* 32 x 32 */ + + +/** + * Subclass of pipe_shader_state to carry extra fragment shader info. + */ +struct aaline_fragment_shader +{ + struct pipe_shader_state state; + void *driver_fs; + void *aaline_fs; + void *aapoint_fs; /* not yet */ + void *sprite_fs; /* not yet */ + uint sampler_unit; + int generic_attrib; /**< texcoord/generic used for texture */ +}; + + +/** + * Subclass of draw_stage + */ +struct aaline_stage +{ + struct draw_stage stage; + + float half_line_width; + + /** For AA lines, this is the vertex attrib slot for the new texcoords */ + uint tex_slot; + /** position, not necessarily output zero */ + uint pos_slot; + + void *sampler_cso; + struct pipe_texture *texture; + uint num_samplers; + uint num_textures; + + + /* + * Currently bound state + */ + struct aaline_fragment_shader *fs; + struct { + void *sampler[PIPE_MAX_SAMPLERS]; + struct pipe_texture *texture[PIPE_MAX_SAMPLERS]; + } state; + + /* + * Driver interface/override functions + */ + void * (*driver_create_fs_state)(struct pipe_context *, + const struct pipe_shader_state *); + void (*driver_bind_fs_state)(struct pipe_context *, void *); + void (*driver_delete_fs_state)(struct pipe_context *, void *); + + void (*driver_bind_sampler_states)(struct pipe_context *, unsigned, + void **); + void (*driver_set_sampler_textures)(struct pipe_context *, unsigned, + struct pipe_texture **); + + struct pipe_context *pipe; +}; + + + +/** + * Subclass of tgsi_transform_context, used for transforming the + * user's fragment shader to add the special AA instructions. + */ +struct aa_transform_context { + struct tgsi_transform_context base; + uint tempsUsed; /**< bitmask */ + int colorOutput; /**< which output is the primary color */ + uint samplersUsed; /**< bitfield of samplers used */ + int freeSampler; /** an available sampler for the pstipple */ + int maxInput, maxGeneric; /**< max input index found */ + int colorTemp, texTemp; /**< temp registers */ + boolean firstInstruction; +}; + + +/** + * TGSI declaration transform callback. + * Look for a free sampler, a free input attrib, and two free temp regs. + */ +static void +aa_transform_decl(struct tgsi_transform_context *ctx, + struct tgsi_full_declaration *decl) +{ + struct aa_transform_context *aactx = (struct aa_transform_context *) ctx; + + if (decl->Declaration.File == TGSI_FILE_OUTPUT && + decl->Semantic.SemanticName == TGSI_SEMANTIC_COLOR && + decl->Semantic.SemanticIndex == 0) { + aactx->colorOutput = decl->DeclarationRange.First; + } + else if (decl->Declaration.File == TGSI_FILE_SAMPLER) { + uint i; + for (i = decl->DeclarationRange.First; + i <= decl->DeclarationRange.Last; i++) { + aactx->samplersUsed |= 1 << i; + } + } + else if (decl->Declaration.File == TGSI_FILE_INPUT) { + if ((int) decl->DeclarationRange.Last > aactx->maxInput) + aactx->maxInput = decl->DeclarationRange.Last; + if (decl->Semantic.SemanticName == TGSI_SEMANTIC_GENERIC && + (int) decl->Semantic.SemanticIndex > aactx->maxGeneric) { + aactx->maxGeneric = decl->Semantic.SemanticIndex; + } + } + else if (decl->Declaration.File == TGSI_FILE_TEMPORARY) { + uint i; + for (i = decl->DeclarationRange.First; + i <= decl->DeclarationRange.Last; i++) { + aactx->tempsUsed |= (1 << i); + } + } + + ctx->emit_declaration(ctx, decl); +} + + +/** + * Find the lowest zero bit in the given word, or -1 if bitfield is all ones. + */ +static int +free_bit(uint bitfield) +{ + int i; + for (i = 0; i < 32; i++) { + if ((bitfield & (1 << i)) == 0) + return i; + } + return -1; +} + + +/** + * TGSI instruction transform callback. + * Replace writes to result.color w/ a temp reg. + * Upon END instruction, insert texture sampling code for antialiasing. + */ +static void +aa_transform_inst(struct tgsi_transform_context *ctx, + struct tgsi_full_instruction *inst) +{ + struct aa_transform_context *aactx = (struct aa_transform_context *) ctx; + + if (aactx->firstInstruction) { + /* emit our new declarations before the first instruction */ + + struct tgsi_full_declaration decl; + uint i; + + /* find free sampler */ + aactx->freeSampler = free_bit(aactx->samplersUsed); + if (aactx->freeSampler >= PIPE_MAX_SAMPLERS) + aactx->freeSampler = PIPE_MAX_SAMPLERS - 1; + + /* find two free temp regs */ + for (i = 0; i < 32; i++) { + if ((aactx->tempsUsed & (1 << i)) == 0) { + /* found a free temp */ + if (aactx->colorTemp < 0) + aactx->colorTemp = i; + else if (aactx->texTemp < 0) + aactx->texTemp = i; + else + break; + } + } + assert(aactx->colorTemp >= 0); + assert(aactx->texTemp >= 0); + + /* declare new generic input/texcoord */ + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_INPUT; + /* XXX this could be linear... */ + decl.Declaration.Interpolate = TGSI_INTERPOLATE_PERSPECTIVE; + decl.Declaration.Semantic = 1; + decl.Semantic.SemanticName = TGSI_SEMANTIC_GENERIC; + decl.Semantic.SemanticIndex = aactx->maxGeneric + 1; + decl.DeclarationRange.First = + decl.DeclarationRange.Last = aactx->maxInput + 1; + ctx->emit_declaration(ctx, &decl); + + /* declare new sampler */ + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_SAMPLER; + decl.DeclarationRange.First = + decl.DeclarationRange.Last = aactx->freeSampler; + ctx->emit_declaration(ctx, &decl); + + /* declare new temp regs */ + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_TEMPORARY; + decl.DeclarationRange.First = + decl.DeclarationRange.Last = aactx->texTemp; + ctx->emit_declaration(ctx, &decl); + + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_TEMPORARY; + decl.DeclarationRange.First = + decl.DeclarationRange.Last = aactx->colorTemp; + ctx->emit_declaration(ctx, &decl); + + aactx->firstInstruction = FALSE; + } + + if (inst->Instruction.Opcode == TGSI_OPCODE_END && + aactx->colorOutput != -1) { + struct tgsi_full_instruction newInst; + + /* TEX */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_TEX; + newInst.Instruction.NumDstRegs = 1; + newInst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullDstRegisters[0].DstRegister.Index = aactx->texTemp; + newInst.Instruction.NumSrcRegs = 2; + newInst.InstructionExtTexture.Texture = TGSI_TEXTURE_2D; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_INPUT; + newInst.FullSrcRegisters[0].SrcRegister.Index = aactx->maxInput + 1; + newInst.FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_SAMPLER; + newInst.FullSrcRegisters[1].SrcRegister.Index = aactx->freeSampler; + + ctx->emit_instruction(ctx, &newInst); + + /* MOV rgb */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_MOV; + newInst.Instruction.NumDstRegs = 1; + newInst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_OUTPUT; + newInst.FullDstRegisters[0].DstRegister.Index = aactx->colorOutput; + newInst.FullDstRegisters[0].DstRegister.WriteMask = TGSI_WRITEMASK_XYZ; + newInst.Instruction.NumSrcRegs = 1; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[0].SrcRegister.Index = aactx->colorTemp; + ctx->emit_instruction(ctx, &newInst); + + /* MUL alpha */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_MUL; + newInst.Instruction.NumDstRegs = 1; + newInst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_OUTPUT; + newInst.FullDstRegisters[0].DstRegister.Index = aactx->colorOutput; + newInst.FullDstRegisters[0].DstRegister.WriteMask = TGSI_WRITEMASK_W; + newInst.Instruction.NumSrcRegs = 2; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[0].SrcRegister.Index = aactx->colorTemp; + newInst.FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[1].SrcRegister.Index = aactx->texTemp; + ctx->emit_instruction(ctx, &newInst); + + /* END */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_END; + newInst.Instruction.NumDstRegs = 0; + newInst.Instruction.NumSrcRegs = 0; + ctx->emit_instruction(ctx, &newInst); + } + else { + /* Not an END instruction. + * Look for writes to result.color and replace with colorTemp reg. + */ + uint i; + + for (i = 0; i < inst->Instruction.NumDstRegs; i++) { + struct tgsi_full_dst_register *dst = &inst->FullDstRegisters[i]; + if (dst->DstRegister.File == TGSI_FILE_OUTPUT && + dst->DstRegister.Index == aactx->colorOutput) { + dst->DstRegister.File = TGSI_FILE_TEMPORARY; + dst->DstRegister.Index = aactx->colorTemp; + } + } + + ctx->emit_instruction(ctx, inst); + } +} + + +/** + * Generate the frag shader we'll use for drawing AA lines. + * This will be the user's shader plus some texture/modulate instructions. + */ +static boolean +generate_aaline_fs(struct aaline_stage *aaline) +{ + const struct pipe_shader_state *orig_fs = &aaline->fs->state; + struct pipe_shader_state aaline_fs; + struct aa_transform_context transform; + +#define MAX 1000 + + aaline_fs = *orig_fs; /* copy to init */ + aaline_fs.tokens = MALLOC(sizeof(struct tgsi_token) * MAX); + if (aaline_fs.tokens == NULL) + return FALSE; + + memset(&transform, 0, sizeof(transform)); + transform.colorOutput = -1; + transform.maxInput = -1; + transform.maxGeneric = -1; + transform.colorTemp = -1; + transform.texTemp = -1; + transform.firstInstruction = TRUE; + transform.base.transform_instruction = aa_transform_inst; + transform.base.transform_declaration = aa_transform_decl; + + tgsi_transform_shader(orig_fs->tokens, + (struct tgsi_token *) aaline_fs.tokens, + MAX, &transform.base); + +#if 0 /* DEBUG */ + tgsi_dump(orig_fs->tokens, 0); + tgsi_dump(aaline_fs.tokens, 0); +#endif + + aaline->fs->sampler_unit = transform.freeSampler; + + aaline->fs->aaline_fs + = aaline->driver_create_fs_state(aaline->pipe, &aaline_fs); + if (aaline->fs->aaline_fs == NULL) + return FALSE; + + aaline->fs->generic_attrib = transform.maxGeneric + 1; + return TRUE; +} + + +/** + * Create the texture map we'll use for antialiasing the lines. + */ +static boolean +aaline_create_texture(struct aaline_stage *aaline) +{ + struct pipe_context *pipe = aaline->pipe; + struct pipe_screen *screen = pipe->screen; + struct pipe_texture texTemp; + uint level; + + memset(&texTemp, 0, sizeof(texTemp)); + texTemp.target = PIPE_TEXTURE_2D; + texTemp.format = PIPE_FORMAT_A8_UNORM; /* XXX verify supported by driver! */ + texTemp.last_level = MAX_TEXTURE_LEVEL; + texTemp.width[0] = 1 << MAX_TEXTURE_LEVEL; + texTemp.height[0] = 1 << MAX_TEXTURE_LEVEL; + texTemp.depth[0] = 1; + pf_get_block(texTemp.format, &texTemp.block); + + aaline->texture = screen->texture_create(screen, &texTemp); + if (!aaline->texture) + return FALSE; + + /* Fill in mipmap images. + * Basically each level is solid opaque, except for the outermost + * texels which are zero. Special case the 1x1 and 2x2 levels. + */ + for (level = 0; level <= MAX_TEXTURE_LEVEL; level++) { + struct pipe_surface *surface; + const uint size = aaline->texture->width[level]; + ubyte *data; + uint i, j; + + assert(aaline->texture->width[level] == aaline->texture->height[level]); + + /* This texture is new, no need to flush. + */ + surface = screen->get_tex_surface(screen, aaline->texture, 0, level, 0, + PIPE_BUFFER_USAGE_CPU_WRITE); + data = screen->surface_map(screen, surface, PIPE_BUFFER_USAGE_CPU_WRITE); + if (data == NULL) + return FALSE; + + for (i = 0; i < size; i++) { + for (j = 0; j < size; j++) { + ubyte d; + if (size == 1) { + d = 255; + } + else if (size == 2) { + d = 200; /* tuneable */ + } + else if (i == 0 || j == 0 || i == size - 1 || j == size - 1) { + d = 0; + } + else { + d = 255; + } + data[i * surface->stride + j] = d; + } + } + + /* unmap */ + screen->surface_unmap(screen, surface); + screen->tex_surface_release(screen, &surface); + } + return TRUE; +} + + +/** + * Create the sampler CSO that'll be used for antialiasing. + * By using a mipmapped texture, we don't have to generate a different + * texture image for each line size. + */ +static boolean +aaline_create_sampler(struct aaline_stage *aaline) +{ + struct pipe_sampler_state sampler; + struct pipe_context *pipe = aaline->pipe; + + memset(&sampler, 0, sizeof(sampler)); + sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler.min_mip_filter = PIPE_TEX_MIPFILTER_LINEAR; + sampler.min_img_filter = PIPE_TEX_FILTER_LINEAR; + sampler.mag_img_filter = PIPE_TEX_FILTER_LINEAR; + sampler.normalized_coords = 1; + sampler.min_lod = 0.0f; + sampler.max_lod = MAX_TEXTURE_LEVEL; + + aaline->sampler_cso = pipe->create_sampler_state(pipe, &sampler); + if (aaline->sampler_cso == NULL) + return FALSE; + + return TRUE; +} + + +/** + * When we're about to draw our first AA line in a batch, this function is + * called to tell the driver to bind our modified fragment shader. + */ +static boolean +bind_aaline_fragment_shader(struct aaline_stage *aaline) +{ + struct draw_context *draw = aaline->stage.draw; + + if (!aaline->fs->aaline_fs && + !generate_aaline_fs(aaline)) + return FALSE; + + draw->suspend_flushing = TRUE; + aaline->driver_bind_fs_state(aaline->pipe, aaline->fs->aaline_fs); + draw->suspend_flushing = FALSE; + + return TRUE; +} + + + +static INLINE struct aaline_stage * +aaline_stage( struct draw_stage *stage ) +{ + return (struct aaline_stage *) stage; +} + + +/** + * Draw a wide line by drawing a quad, using geometry which will + * fullfill GL's antialiased line requirements. + */ +static void +aaline_line(struct draw_stage *stage, struct prim_header *header) +{ + const struct aaline_stage *aaline = aaline_stage(stage); + const float half_width = aaline->half_line_width; + struct prim_header tri; + struct vertex_header *v[8]; + uint texPos = aaline->tex_slot; + uint posPos = aaline->pos_slot; + float *pos, *tex; + float dx = header->v[1]->data[posPos][0] - header->v[0]->data[posPos][0]; + float dy = header->v[1]->data[posPos][1] - header->v[0]->data[posPos][1]; + double a = atan2(dy, dx); + float c_a = (float) cos(a), s_a = (float) sin(a); + uint i; + + /* XXX the ends of lines aren't quite perfect yet, but probably passable */ + dx = 0.5F * half_width; + dy = half_width; + + /* allocate/dup new verts */ + for (i = 0; i < 8; i++) { + v[i] = dup_vert(stage, header->v[i/4], i); + } + + /* + * Quad strip for line from v0 to v1 (*=endpoints): + * + * 1 3 5 7 + * +---+---------------------+---+ + * | | + * | *v0 v1* | + * | | + * +---+---------------------+---+ + * 0 2 4 6 + */ + + /* new verts */ + pos = v[0]->data[posPos]; + pos[0] += (-dx * c_a - dy * s_a); + pos[1] += (-dx * s_a + dy * c_a); + + pos = v[1]->data[posPos]; + pos[0] += (-dx * c_a - -dy * s_a); + pos[1] += (-dx * s_a + -dy * c_a); + + pos = v[2]->data[posPos]; + pos[0] += ( dx * c_a - dy * s_a); + pos[1] += ( dx * s_a + dy * c_a); + + pos = v[3]->data[posPos]; + pos[0] += ( dx * c_a - -dy * s_a); + pos[1] += ( dx * s_a + -dy * c_a); + + pos = v[4]->data[posPos]; + pos[0] += (-dx * c_a - dy * s_a); + pos[1] += (-dx * s_a + dy * c_a); + + pos = v[5]->data[posPos]; + pos[0] += (-dx * c_a - -dy * s_a); + pos[1] += (-dx * s_a + -dy * c_a); + + pos = v[6]->data[posPos]; + pos[0] += ( dx * c_a - dy * s_a); + pos[1] += ( dx * s_a + dy * c_a); + + pos = v[7]->data[posPos]; + pos[0] += ( dx * c_a - -dy * s_a); + pos[1] += ( dx * s_a + -dy * c_a); + + /* new texcoords */ + tex = v[0]->data[texPos]; + ASSIGN_4V(tex, 0, 0, 0, 1); + + tex = v[1]->data[texPos]; + ASSIGN_4V(tex, 0, 1, 0, 1); + + tex = v[2]->data[texPos]; + ASSIGN_4V(tex, .5, 0, 0, 1); + + tex = v[3]->data[texPos]; + ASSIGN_4V(tex, .5, 1, 0, 1); + + tex = v[4]->data[texPos]; + ASSIGN_4V(tex, .5, 0, 0, 1); + + tex = v[5]->data[texPos]; + ASSIGN_4V(tex, .5, 1, 0, 1); + + tex = v[6]->data[texPos]; + ASSIGN_4V(tex, 1, 0, 0, 1); + + tex = v[7]->data[texPos]; + ASSIGN_4V(tex, 1, 1, 0, 1); + + /* emit 6 tris for the quad strip */ + tri.v[0] = v[2]; tri.v[1] = v[1]; tri.v[2] = v[0]; + stage->next->tri( stage->next, &tri ); + + tri.v[0] = v[3]; tri.v[1] = v[1]; tri.v[2] = v[2]; + stage->next->tri( stage->next, &tri ); + + tri.v[0] = v[4]; tri.v[1] = v[3]; tri.v[2] = v[2]; + stage->next->tri( stage->next, &tri ); + + tri.v[0] = v[5]; tri.v[1] = v[3]; tri.v[2] = v[4]; + stage->next->tri( stage->next, &tri ); + + tri.v[0] = v[6]; tri.v[1] = v[5]; tri.v[2] = v[4]; + stage->next->tri( stage->next, &tri ); + + tri.v[0] = v[7]; tri.v[1] = v[5]; tri.v[2] = v[6]; + stage->next->tri( stage->next, &tri ); +} + + +static void +aaline_first_line(struct draw_stage *stage, struct prim_header *header) +{ + auto struct aaline_stage *aaline = aaline_stage(stage); + struct draw_context *draw = stage->draw; + struct pipe_context *pipe = aaline->pipe; + uint num_samplers; + + assert(draw->rasterizer->line_smooth); + + if (draw->rasterizer->line_width <= 3.0) + aaline->half_line_width = 1.5f; + else + aaline->half_line_width = 0.5f * draw->rasterizer->line_width; + + /* + * Bind (generate) our fragprog, sampler and texture + */ + if (!bind_aaline_fragment_shader(aaline)) { + stage->line = draw_pipe_passthrough_line; + stage->line(stage, header); + return; + } + + /* update vertex attrib info */ + aaline->tex_slot = draw->vs.num_vs_outputs; + aaline->pos_slot = draw->vs.position_output; + + /* advertise the extra post-transformed vertex attribute */ + draw->extra_vp_outputs.semantic_name = TGSI_SEMANTIC_GENERIC; + draw->extra_vp_outputs.semantic_index = aaline->fs->generic_attrib; + draw->extra_vp_outputs.slot = aaline->tex_slot; + + /* how many samplers? */ + /* we'll use sampler/texture[pstip->sampler_unit] for the stipple */ + num_samplers = MAX2(aaline->num_textures, aaline->num_samplers); + num_samplers = MAX2(num_samplers, aaline->fs->sampler_unit + 1); + + aaline->state.sampler[aaline->fs->sampler_unit] = aaline->sampler_cso; + pipe_texture_reference(&aaline->state.texture[aaline->fs->sampler_unit], + aaline->texture); + + draw->suspend_flushing = TRUE; + aaline->driver_bind_sampler_states(pipe, num_samplers, aaline->state.sampler); + aaline->driver_set_sampler_textures(pipe, num_samplers, aaline->state.texture); + draw->suspend_flushing = FALSE; + + /* now really draw first line */ + stage->line = aaline_line; + stage->line(stage, header); +} + + +static void +aaline_flush(struct draw_stage *stage, unsigned flags) +{ + struct draw_context *draw = stage->draw; + struct aaline_stage *aaline = aaline_stage(stage); + struct pipe_context *pipe = aaline->pipe; + + stage->line = aaline_first_line; + stage->next->flush( stage->next, flags ); + + /* restore original frag shader, texture, sampler state */ + draw->suspend_flushing = TRUE; + aaline->driver_bind_fs_state(pipe, aaline->fs->driver_fs); + aaline->driver_bind_sampler_states(pipe, aaline->num_samplers, + aaline->state.sampler); + aaline->driver_set_sampler_textures(pipe, aaline->num_textures, + aaline->state.texture); + draw->suspend_flushing = FALSE; + + draw->extra_vp_outputs.slot = 0; +} + + +static void +aaline_reset_stipple_counter(struct draw_stage *stage) +{ + stage->next->reset_stipple_counter( stage->next ); +} + + +static void +aaline_destroy(struct draw_stage *stage) +{ + struct aaline_stage *aaline = aaline_stage(stage); + uint i; + + for (i = 0; i < PIPE_MAX_SAMPLERS; i++) { + pipe_texture_reference(&aaline->state.texture[i], NULL); + } + + if (aaline->sampler_cso) + aaline->pipe->delete_sampler_state(aaline->pipe, aaline->sampler_cso); + + if (aaline->texture) + pipe_texture_release(&aaline->texture); + + draw_free_temp_verts( stage ); + + FREE( stage ); +} + + +static struct aaline_stage * +draw_aaline_stage(struct draw_context *draw) +{ + struct aaline_stage *aaline = CALLOC_STRUCT(aaline_stage); + if (aaline == NULL) + return NULL; + + if (!draw_alloc_temp_verts( &aaline->stage, 8 )) + goto fail; + + aaline->stage.draw = draw; + aaline->stage.next = NULL; + aaline->stage.point = draw_pipe_passthrough_point; + aaline->stage.line = aaline_first_line; + aaline->stage.tri = draw_pipe_passthrough_tri; + aaline->stage.flush = aaline_flush; + aaline->stage.reset_stipple_counter = aaline_reset_stipple_counter; + aaline->stage.destroy = aaline_destroy; + + return aaline; + + fail: + if (aaline) + aaline_destroy(&aaline->stage); + + return NULL; +} + + +static struct aaline_stage * +aaline_stage_from_pipe(struct pipe_context *pipe) +{ + struct draw_context *draw = (struct draw_context *) pipe->draw; + return aaline_stage(draw->pipeline.aaline); +} + + +/** + * This function overrides the driver's create_fs_state() function and + * will typically be called by the state tracker. + */ +static void * +aaline_create_fs_state(struct pipe_context *pipe, + const struct pipe_shader_state *fs) +{ + struct aaline_stage *aaline = aaline_stage_from_pipe(pipe); + struct aaline_fragment_shader *aafs = CALLOC_STRUCT(aaline_fragment_shader); + if (aafs == NULL) + return NULL; + + aafs->state = *fs; + + /* pass-through */ + aafs->driver_fs = aaline->driver_create_fs_state(aaline->pipe, fs); + + return aafs; +} + + +static void +aaline_bind_fs_state(struct pipe_context *pipe, void *fs) +{ + struct aaline_stage *aaline = aaline_stage_from_pipe(pipe); + struct aaline_fragment_shader *aafs = (struct aaline_fragment_shader *) fs; + + /* save current */ + aaline->fs = aafs; + /* pass-through */ + aaline->driver_bind_fs_state(aaline->pipe, + (aafs ? aafs->driver_fs : NULL)); +} + + +static void +aaline_delete_fs_state(struct pipe_context *pipe, void *fs) +{ + struct aaline_stage *aaline = aaline_stage_from_pipe(pipe); + struct aaline_fragment_shader *aafs = (struct aaline_fragment_shader *) fs; + /* pass-through */ + aaline->driver_delete_fs_state(aaline->pipe, aafs->driver_fs); + FREE(aafs); +} + + +static void +aaline_bind_sampler_states(struct pipe_context *pipe, + unsigned num, void **sampler) +{ + struct aaline_stage *aaline = aaline_stage_from_pipe(pipe); + + /* save current */ + memcpy(aaline->state.sampler, sampler, num * sizeof(void *)); + aaline->num_samplers = num; + + /* pass-through */ + aaline->driver_bind_sampler_states(aaline->pipe, num, sampler); +} + + +static void +aaline_set_sampler_textures(struct pipe_context *pipe, + unsigned num, struct pipe_texture **texture) +{ + struct aaline_stage *aaline = aaline_stage_from_pipe(pipe); + uint i; + + /* save current */ + for (i = 0; i < num; i++) { + pipe_texture_reference(&aaline->state.texture[i], texture[i]); + } + for ( ; i < PIPE_MAX_SAMPLERS; i++) { + pipe_texture_reference(&aaline->state.texture[i], NULL); + } + aaline->num_textures = num; + + /* pass-through */ + aaline->driver_set_sampler_textures(aaline->pipe, num, texture); +} + + +/** + * Called by drivers that want to install this AA line prim stage + * into the draw module's pipeline. This will not be used if the + * hardware has native support for AA lines. + */ +boolean +draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe) +{ + struct aaline_stage *aaline; + + pipe->draw = (void *) draw; + + /* + * Create / install AA line drawing / prim stage + */ + aaline = draw_aaline_stage( draw ); + if (!aaline) + goto fail; + + aaline->pipe = pipe; + + /* create special texture, sampler state */ + if (!aaline_create_texture(aaline)) + goto fail; + + if (!aaline_create_sampler(aaline)) + goto fail; + + /* save original driver functions */ + aaline->driver_create_fs_state = pipe->create_fs_state; + aaline->driver_bind_fs_state = pipe->bind_fs_state; + aaline->driver_delete_fs_state = pipe->delete_fs_state; + + aaline->driver_bind_sampler_states = pipe->bind_sampler_states; + aaline->driver_set_sampler_textures = pipe->set_sampler_textures; + + /* override the driver's functions */ + pipe->create_fs_state = aaline_create_fs_state; + pipe->bind_fs_state = aaline_bind_fs_state; + pipe->delete_fs_state = aaline_delete_fs_state; + + pipe->bind_sampler_states = aaline_bind_sampler_states; + pipe->set_sampler_textures = aaline_set_sampler_textures; + + /* Install once everything is known to be OK: + */ + draw->pipeline.aaline = &aaline->stage; + + return TRUE; + + fail: + if (aaline) + aaline->stage.destroy( &aaline->stage ); + + return FALSE; +} diff --git a/src/gallium/auxiliary/draw/draw_pipe_aapoint.c b/src/gallium/auxiliary/draw/draw_pipe_aapoint.c new file mode 100644 index 0000000000..2c1cacbdb4 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe_aapoint.c @@ -0,0 +1,875 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * AA point stage: AA points are converted to quads and rendered with a + * special fragment shader. Another approach would be to use a texture + * map image of a point, but experiments indicate the quality isn't nearly + * as good as this approach. + * + * Note: this looks a lot like draw_aaline.c but there's actually little + * if any code that can be shared. + * + * Authors: Brian Paul + */ + + +#include "pipe/p_inlines.h" +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_shader_tokens.h" + +#include "tgsi/tgsi_transform.h" +#include "tgsi/tgsi_dump.h" + +#include "util/u_math.h" +#include "util/u_memory.h" + +#include "draw_context.h" +#include "draw_vs.h" +#include "draw_pipe.h" + + +/* + * Enabling NORMALIZE might give _slightly_ better results. + * Basically, it controls whether we compute distance as d=sqrt(x*x+y*y) or + * d=x*x+y*y. Since we're working with a unit circle, the later seems + * close enough and saves some costly instructions. + */ +#define NORMALIZE 0 + + +/** + * Subclass of pipe_shader_state to carry extra fragment shader info. + */ +struct aapoint_fragment_shader +{ + struct pipe_shader_state state; + void *driver_fs; /**< the regular shader */ + void *aapoint_fs; /**< the aa point-augmented shader */ + int generic_attrib; /**< The generic input attrib/texcoord we'll use */ +}; + + +/** + * Subclass of draw_stage + */ +struct aapoint_stage +{ + struct draw_stage stage; + + int psize_slot; + float radius; + + /** this is the vertex attrib slot for the new texcoords */ + uint tex_slot; + uint pos_slot; + + /* + * Currently bound state + */ + struct aapoint_fragment_shader *fs; + + /* + * Driver interface/override functions + */ + void * (*driver_create_fs_state)(struct pipe_context *, + const struct pipe_shader_state *); + void (*driver_bind_fs_state)(struct pipe_context *, void *); + void (*driver_delete_fs_state)(struct pipe_context *, void *); + + struct pipe_context *pipe; +}; + + + +/** + * Subclass of tgsi_transform_context, used for transforming the + * user's fragment shader to add the special AA instructions. + */ +struct aa_transform_context { + struct tgsi_transform_context base; + uint tempsUsed; /**< bitmask */ + int colorOutput; /**< which output is the primary color */ + int maxInput, maxGeneric; /**< max input index found */ + int tmp0, colorTemp; /**< temp registers */ + boolean firstInstruction; +}; + + +/** + * TGSI declaration transform callback. + * Look for two free temp regs and available input reg for new texcoords. + */ +static void +aa_transform_decl(struct tgsi_transform_context *ctx, + struct tgsi_full_declaration *decl) +{ + struct aa_transform_context *aactx = (struct aa_transform_context *) ctx; + + if (decl->Declaration.File == TGSI_FILE_OUTPUT && + decl->Semantic.SemanticName == TGSI_SEMANTIC_COLOR && + decl->Semantic.SemanticIndex == 0) { + aactx->colorOutput = decl->DeclarationRange.First; + } + else if (decl->Declaration.File == TGSI_FILE_INPUT) { + if ((int) decl->DeclarationRange.Last > aactx->maxInput) + aactx->maxInput = decl->DeclarationRange.Last; + if (decl->Semantic.SemanticName == TGSI_SEMANTIC_GENERIC && + (int) decl->Semantic.SemanticIndex > aactx->maxGeneric) { + aactx->maxGeneric = decl->Semantic.SemanticIndex; + } + } + else if (decl->Declaration.File == TGSI_FILE_TEMPORARY) { + uint i; + for (i = decl->DeclarationRange.First; + i <= decl->DeclarationRange.Last; i++) { + aactx->tempsUsed |= (1 << i); + } + } + + ctx->emit_declaration(ctx, decl); +} + + +/** + * TGSI instruction transform callback. + * Replace writes to result.color w/ a temp reg. + * Upon END instruction, insert texture sampling code for antialiasing. + */ +static void +aa_transform_inst(struct tgsi_transform_context *ctx, + struct tgsi_full_instruction *inst) +{ + struct aa_transform_context *aactx = (struct aa_transform_context *) ctx; + struct tgsi_full_instruction newInst; + + if (aactx->firstInstruction) { + /* emit our new declarations before the first instruction */ + + struct tgsi_full_declaration decl; + const int texInput = aactx->maxInput + 1; + int tmp0; + uint i; + + /* find two free temp regs */ + for (i = 0; i < 32; i++) { + if ((aactx->tempsUsed & (1 << i)) == 0) { + /* found a free temp */ + if (aactx->tmp0 < 0) + aactx->tmp0 = i; + else if (aactx->colorTemp < 0) + aactx->colorTemp = i; + else + break; + } + } + + assert(aactx->colorTemp != aactx->tmp0); + + tmp0 = aactx->tmp0; + + /* declare new generic input/texcoord */ + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_INPUT; + /* XXX this could be linear... */ + decl.Declaration.Interpolate = TGSI_INTERPOLATE_PERSPECTIVE; + decl.Declaration.Semantic = 1; + decl.Semantic.SemanticName = TGSI_SEMANTIC_GENERIC; + decl.Semantic.SemanticIndex = aactx->maxGeneric + 1; + decl.DeclarationRange.First = + decl.DeclarationRange.Last = texInput; + ctx->emit_declaration(ctx, &decl); + + /* declare new temp regs */ + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_TEMPORARY; + decl.DeclarationRange.First = + decl.DeclarationRange.Last = tmp0; + ctx->emit_declaration(ctx, &decl); + + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_TEMPORARY; + decl.DeclarationRange.First = + decl.DeclarationRange.Last = aactx->colorTemp; + ctx->emit_declaration(ctx, &decl); + + aactx->firstInstruction = FALSE; + + + /* + * Emit code to compute fragment coverage, kill if outside point radius + * + * Temp reg0 usage: + * t0.x = distance of fragment from center point + * t0.y = boolean, is t0.x > 1.0, also misc temp usage + * t0.z = temporary for computing 1/(1-k) value + * t0.w = final coverage value + */ + + /* MUL t0.xy, tex, tex; # compute x^2, y^2 */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_MUL; + newInst.Instruction.NumDstRegs = 1; + newInst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullDstRegisters[0].DstRegister.Index = tmp0; + newInst.FullDstRegisters[0].DstRegister.WriteMask = TGSI_WRITEMASK_XY; + newInst.Instruction.NumSrcRegs = 2; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_INPUT; + newInst.FullSrcRegisters[0].SrcRegister.Index = texInput; + newInst.FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_INPUT; + newInst.FullSrcRegisters[1].SrcRegister.Index = texInput; + ctx->emit_instruction(ctx, &newInst); + + /* ADD t0.x, t0.x, t0.y; # x^2 + y^2 */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_ADD; + newInst.Instruction.NumDstRegs = 1; + newInst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullDstRegisters[0].DstRegister.Index = tmp0; + newInst.FullDstRegisters[0].DstRegister.WriteMask = TGSI_WRITEMASK_X; + newInst.Instruction.NumSrcRegs = 2; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[0].SrcRegister.Index = tmp0; + newInst.FullSrcRegisters[0].SrcRegister.SwizzleX = TGSI_SWIZZLE_X; + newInst.FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[1].SrcRegister.Index = tmp0; + newInst.FullSrcRegisters[1].SrcRegister.SwizzleX = TGSI_SWIZZLE_Y; + ctx->emit_instruction(ctx, &newInst); + +#if NORMALIZE /* OPTIONAL normalization of length */ + /* RSQ t0.x, t0.x; */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_RSQ; + newInst.Instruction.NumDstRegs = 1; + newInst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullDstRegisters[0].DstRegister.Index = tmp0; + newInst.FullDstRegisters[0].DstRegister.WriteMask = TGSI_WRITEMASK_X; + newInst.Instruction.NumSrcRegs = 1; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[0].SrcRegister.Index = tmp0; + ctx->emit_instruction(ctx, &newInst); + + /* RCP t0.x, t0.x; */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_RCP; + newInst.Instruction.NumDstRegs = 1; + newInst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullDstRegisters[0].DstRegister.Index = tmp0; + newInst.FullDstRegisters[0].DstRegister.WriteMask = TGSI_WRITEMASK_X; + newInst.Instruction.NumSrcRegs = 1; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[0].SrcRegister.Index = tmp0; + ctx->emit_instruction(ctx, &newInst); +#endif + + /* SGT t0.y, t0.xxxx, t0.wwww; # bool b = d > 1 (NOTE t0.w == 1) */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_SGT; + newInst.Instruction.NumDstRegs = 1; + newInst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullDstRegisters[0].DstRegister.Index = tmp0; + newInst.FullDstRegisters[0].DstRegister.WriteMask = TGSI_WRITEMASK_Y; + newInst.Instruction.NumSrcRegs = 2; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[0].SrcRegister.Index = tmp0; + newInst.FullSrcRegisters[0].SrcRegister.SwizzleY = TGSI_SWIZZLE_X; + newInst.FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_INPUT; + newInst.FullSrcRegisters[1].SrcRegister.Index = texInput; + newInst.FullSrcRegisters[1].SrcRegister.SwizzleY = TGSI_SWIZZLE_W; + ctx->emit_instruction(ctx, &newInst); + + /* KIL -tmp0.yyyy; # if -tmp0.y < 0, KILL */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_KIL; + newInst.Instruction.NumDstRegs = 0; + newInst.Instruction.NumSrcRegs = 1; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[0].SrcRegister.Index = tmp0; + newInst.FullSrcRegisters[0].SrcRegister.SwizzleX = TGSI_SWIZZLE_Y; + newInst.FullSrcRegisters[0].SrcRegister.SwizzleY = TGSI_SWIZZLE_Y; + newInst.FullSrcRegisters[0].SrcRegister.SwizzleZ = TGSI_SWIZZLE_Y; + newInst.FullSrcRegisters[0].SrcRegister.SwizzleW = TGSI_SWIZZLE_Y; + newInst.FullSrcRegisters[0].SrcRegister.Negate = 1; + ctx->emit_instruction(ctx, &newInst); + + + /* compute coverage factor = (1-d)/(1-k) */ + + /* SUB t0.z, tex.w, tex.z; # m = 1 - k */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_SUB; + newInst.Instruction.NumDstRegs = 1; + newInst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullDstRegisters[0].DstRegister.Index = tmp0; + newInst.FullDstRegisters[0].DstRegister.WriteMask = TGSI_WRITEMASK_Z; + newInst.Instruction.NumSrcRegs = 2; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_INPUT; + newInst.FullSrcRegisters[0].SrcRegister.Index = texInput; + newInst.FullSrcRegisters[0].SrcRegister.SwizzleZ = TGSI_SWIZZLE_W; + newInst.FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_INPUT; + newInst.FullSrcRegisters[1].SrcRegister.Index = texInput; + newInst.FullSrcRegisters[1].SrcRegister.SwizzleZ = TGSI_SWIZZLE_Z; + ctx->emit_instruction(ctx, &newInst); + + /* RCP t0.z, t0.z; # t0.z = 1 / m */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_RCP; + newInst.Instruction.NumDstRegs = 1; + newInst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullDstRegisters[0].DstRegister.Index = tmp0; + newInst.FullDstRegisters[0].DstRegister.WriteMask = TGSI_WRITEMASK_Z; + newInst.Instruction.NumSrcRegs = 1; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[0].SrcRegister.Index = tmp0; + newInst.FullSrcRegisters[0].SrcRegister.SwizzleX = TGSI_SWIZZLE_Z; + ctx->emit_instruction(ctx, &newInst); + + /* SUB t0.y, 1, t0.x; # d = 1 - d */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_SUB; + newInst.Instruction.NumDstRegs = 1; + newInst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullDstRegisters[0].DstRegister.Index = tmp0; + newInst.FullDstRegisters[0].DstRegister.WriteMask = TGSI_WRITEMASK_Y; + newInst.Instruction.NumSrcRegs = 2; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_INPUT; + newInst.FullSrcRegisters[0].SrcRegister.Index = texInput; + newInst.FullSrcRegisters[0].SrcRegister.SwizzleY = TGSI_SWIZZLE_W; + newInst.FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[1].SrcRegister.Index = tmp0; + newInst.FullSrcRegisters[1].SrcRegister.SwizzleY = TGSI_SWIZZLE_X; + ctx->emit_instruction(ctx, &newInst); + + /* MUL t0.w, t0.y, t0.z; # coverage = d * m */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_MUL; + newInst.Instruction.NumDstRegs = 1; + newInst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullDstRegisters[0].DstRegister.Index = tmp0; + newInst.FullDstRegisters[0].DstRegister.WriteMask = TGSI_WRITEMASK_W; + newInst.Instruction.NumSrcRegs = 2; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[0].SrcRegister.Index = tmp0; + newInst.FullSrcRegisters[0].SrcRegister.SwizzleW = TGSI_SWIZZLE_Y; + newInst.FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[1].SrcRegister.Index = tmp0; + newInst.FullSrcRegisters[1].SrcRegister.SwizzleW = TGSI_SWIZZLE_Z; + ctx->emit_instruction(ctx, &newInst); + + /* SLE t0.y, t0.x, tex.z; # bool b = distance <= k */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_SLE; + newInst.Instruction.NumDstRegs = 1; + newInst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullDstRegisters[0].DstRegister.Index = tmp0; + newInst.FullDstRegisters[0].DstRegister.WriteMask = TGSI_WRITEMASK_Y; + newInst.Instruction.NumSrcRegs = 2; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[0].SrcRegister.Index = tmp0; + newInst.FullSrcRegisters[0].SrcRegister.SwizzleY = TGSI_SWIZZLE_X; + newInst.FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_INPUT; + newInst.FullSrcRegisters[1].SrcRegister.Index = texInput; + newInst.FullSrcRegisters[1].SrcRegister.SwizzleY = TGSI_SWIZZLE_Z; + ctx->emit_instruction(ctx, &newInst); + + /* CMP t0.w, -t0.y, tex.w, t0.w; + * # if -t0.y < 0 then + * t0.w = 1 + * else + * t0.w = t0.w + */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_CMP; + newInst.Instruction.NumDstRegs = 1; + newInst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullDstRegisters[0].DstRegister.Index = tmp0; + newInst.FullDstRegisters[0].DstRegister.WriteMask = TGSI_WRITEMASK_W; + newInst.Instruction.NumSrcRegs = 3; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[0].SrcRegister.Index = tmp0; + newInst.FullSrcRegisters[0].SrcRegister.SwizzleX = TGSI_SWIZZLE_Y; + newInst.FullSrcRegisters[0].SrcRegister.SwizzleY = TGSI_SWIZZLE_Y; + newInst.FullSrcRegisters[0].SrcRegister.SwizzleZ = TGSI_SWIZZLE_Y; + newInst.FullSrcRegisters[0].SrcRegister.SwizzleW = TGSI_SWIZZLE_Y; + newInst.FullSrcRegisters[0].SrcRegister.Negate = 1; + newInst.FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_INPUT; + newInst.FullSrcRegisters[1].SrcRegister.Index = texInput; + newInst.FullSrcRegisters[1].SrcRegister.SwizzleX = TGSI_SWIZZLE_W; + newInst.FullSrcRegisters[1].SrcRegister.SwizzleY = TGSI_SWIZZLE_W; + newInst.FullSrcRegisters[1].SrcRegister.SwizzleZ = TGSI_SWIZZLE_W; + newInst.FullSrcRegisters[1].SrcRegister.SwizzleW = TGSI_SWIZZLE_W; + newInst.FullSrcRegisters[2].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[2].SrcRegister.Index = tmp0; + newInst.FullSrcRegisters[2].SrcRegister.SwizzleX = TGSI_SWIZZLE_W; + newInst.FullSrcRegisters[2].SrcRegister.SwizzleY = TGSI_SWIZZLE_W; + newInst.FullSrcRegisters[2].SrcRegister.SwizzleZ = TGSI_SWIZZLE_W; + newInst.FullSrcRegisters[2].SrcRegister.SwizzleW = TGSI_SWIZZLE_W; + ctx->emit_instruction(ctx, &newInst); + + } + + if (inst->Instruction.Opcode == TGSI_OPCODE_END) { + /* add alpha modulation code at tail of program */ + + /* MOV result.color.xyz, colorTemp; */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_MOV; + newInst.Instruction.NumDstRegs = 1; + newInst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_OUTPUT; + newInst.FullDstRegisters[0].DstRegister.Index = aactx->colorOutput; + newInst.FullDstRegisters[0].DstRegister.WriteMask = TGSI_WRITEMASK_XYZ; + newInst.Instruction.NumSrcRegs = 1; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[0].SrcRegister.Index = aactx->colorTemp; + ctx->emit_instruction(ctx, &newInst); + + /* MUL result.color.w, colorTemp, tmp0.w; */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_MUL; + newInst.Instruction.NumDstRegs = 1; + newInst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_OUTPUT; + newInst.FullDstRegisters[0].DstRegister.Index = aactx->colorOutput; + newInst.FullDstRegisters[0].DstRegister.WriteMask = TGSI_WRITEMASK_W; + newInst.Instruction.NumSrcRegs = 2; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[0].SrcRegister.Index = aactx->colorTemp; + newInst.FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[1].SrcRegister.Index = aactx->tmp0; + ctx->emit_instruction(ctx, &newInst); + } + else { + /* Not an END instruction. + * Look for writes to result.color and replace with colorTemp reg. + */ + uint i; + + for (i = 0; i < inst->Instruction.NumDstRegs; i++) { + struct tgsi_full_dst_register *dst = &inst->FullDstRegisters[i]; + if (dst->DstRegister.File == TGSI_FILE_OUTPUT && + dst->DstRegister.Index == aactx->colorOutput) { + dst->DstRegister.File = TGSI_FILE_TEMPORARY; + dst->DstRegister.Index = aactx->colorTemp; + } + } + } + + ctx->emit_instruction(ctx, inst); +} + + +/** + * Generate the frag shader we'll use for drawing AA points. + * This will be the user's shader plus some texture/modulate instructions. + */ +static boolean +generate_aapoint_fs(struct aapoint_stage *aapoint) +{ + const struct pipe_shader_state *orig_fs = &aapoint->fs->state; + struct pipe_shader_state aapoint_fs; + struct aa_transform_context transform; + +#define MAX 1000 + + aapoint_fs = *orig_fs; /* copy to init */ + aapoint_fs.tokens = MALLOC(sizeof(struct tgsi_token) * MAX); + if (aapoint_fs.tokens == NULL) + return FALSE; + + memset(&transform, 0, sizeof(transform)); + transform.colorOutput = -1; + transform.maxInput = -1; + transform.maxGeneric = -1; + transform.colorTemp = -1; + transform.tmp0 = -1; + transform.firstInstruction = TRUE; + transform.base.transform_instruction = aa_transform_inst; + transform.base.transform_declaration = aa_transform_decl; + + tgsi_transform_shader(orig_fs->tokens, + (struct tgsi_token *) aapoint_fs.tokens, + MAX, &transform.base); + +#if 0 /* DEBUG */ + printf("draw_aapoint, orig shader:\n"); + tgsi_dump(orig_fs->tokens, 0); + printf("draw_aapoint, new shader:\n"); + tgsi_dump(aapoint_fs.tokens, 0); +#endif + + aapoint->fs->aapoint_fs + = aapoint->driver_create_fs_state(aapoint->pipe, &aapoint_fs); + if (aapoint->fs->aapoint_fs == NULL) + return FALSE; + + aapoint->fs->generic_attrib = transform.maxGeneric + 1; + + return TRUE; +} + + +/** + * When we're about to draw our first AA point in a batch, this function is + * called to tell the driver to bind our modified fragment shader. + */ +static boolean +bind_aapoint_fragment_shader(struct aapoint_stage *aapoint) +{ + struct draw_context *draw = aapoint->stage.draw; + + if (!aapoint->fs->aapoint_fs && + !generate_aapoint_fs(aapoint)) + return FALSE; + + draw->suspend_flushing = TRUE; + aapoint->driver_bind_fs_state(aapoint->pipe, aapoint->fs->aapoint_fs); + draw->suspend_flushing = FALSE; + + return TRUE; +} + + + +static INLINE struct aapoint_stage * +aapoint_stage( struct draw_stage *stage ) +{ + return (struct aapoint_stage *) stage; +} + + + + +/** + * Draw an AA point by drawing a quad. + */ +static void +aapoint_point(struct draw_stage *stage, struct prim_header *header) +{ + const struct aapoint_stage *aapoint = aapoint_stage(stage); + struct prim_header tri; + struct vertex_header *v[4]; + uint texPos = aapoint->tex_slot; + uint pos_slot = aapoint->pos_slot; + float radius, *pos, *tex; + uint i; + float k; + + if (aapoint->psize_slot >= 0) { + radius = 0.5f * header->v[0]->data[aapoint->psize_slot][0]; + } + else { + radius = aapoint->radius; + } + + /* + * Note: the texcoords (generic attrib, really) we use are special: + * The S and T components simply vary from -1 to +1. + * The R component is k, below. + * The Q component is 1.0 and will used as a handy constant in the + * fragment shader. + */ + + /* + * k is the threshold distance from the point's center at which + * we begin alpha attenuation (the coverage value). + * Operating within a unit circle, we'll compute the fragment's + * distance 'd' from the center point using the texcoords. + * IF d > 1.0 THEN + * KILL fragment + * ELSE IF d > k THEN + * compute coverage in [0,1] proportional to d in [k, 1]. + * ELSE + * coverage = 1.0; // full coverage + * ENDIF + * + * Note: the ELSEIF and ELSE clauses are actually implemented with CMP to + * avoid using IF/ELSE/ENDIF TGSI opcodes. + */ + +#if !NORMALIZE + k = 1.0f / radius; + k = 1.0f - 2.0f * k + k * k; +#else + k = 1.0f - 1.0f / radius; +#endif + + /* allocate/dup new verts */ + for (i = 0; i < 4; i++) { + v[i] = dup_vert(stage, header->v[0], i); + } + + /* new verts */ + pos = v[0]->data[pos_slot]; + pos[0] -= radius; + pos[1] -= radius; + + pos = v[1]->data[pos_slot]; + pos[0] += radius; + pos[1] -= radius; + + pos = v[2]->data[pos_slot]; + pos[0] += radius; + pos[1] += radius; + + pos = v[3]->data[pos_slot]; + pos[0] -= radius; + pos[1] += radius; + + /* new texcoords */ + tex = v[0]->data[texPos]; + ASSIGN_4V(tex, -1, -1, k, 1); + + tex = v[1]->data[texPos]; + ASSIGN_4V(tex, 1, -1, k, 1); + + tex = v[2]->data[texPos]; + ASSIGN_4V(tex, 1, 1, k, 1); + + tex = v[3]->data[texPos]; + ASSIGN_4V(tex, -1, 1, k, 1); + + /* emit 2 tris for the quad strip */ + tri.v[0] = v[0]; + tri.v[1] = v[1]; + tri.v[2] = v[2]; + stage->next->tri( stage->next, &tri ); + + tri.v[0] = v[0]; + tri.v[1] = v[2]; + tri.v[2] = v[3]; + stage->next->tri( stage->next, &tri ); +} + + +static void +aapoint_first_point(struct draw_stage *stage, struct prim_header *header) +{ + auto struct aapoint_stage *aapoint = aapoint_stage(stage); + struct draw_context *draw = stage->draw; + + assert(draw->rasterizer->point_smooth); + + if (draw->rasterizer->point_size <= 2.0) + aapoint->radius = 1.0; + else + aapoint->radius = 0.5f * draw->rasterizer->point_size; + + /* + * Bind (generate) our fragprog. + */ + bind_aapoint_fragment_shader(aapoint); + + /* update vertex attrib info */ + aapoint->tex_slot = draw->vs.num_vs_outputs; + assert(aapoint->tex_slot > 0); /* output[0] is vertex pos */ + + aapoint->pos_slot = draw->vs.position_output; + + draw->extra_vp_outputs.semantic_name = TGSI_SEMANTIC_GENERIC; + draw->extra_vp_outputs.semantic_index = aapoint->fs->generic_attrib; + draw->extra_vp_outputs.slot = aapoint->tex_slot; + + /* find psize slot in post-transform vertex */ + aapoint->psize_slot = -1; + if (draw->rasterizer->point_size_per_vertex) { + /* find PSIZ vertex output */ + const struct draw_vertex_shader *vs = draw->vs.vertex_shader; + uint i; + for (i = 0; i < vs->info.num_outputs; i++) { + if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_PSIZE) { + aapoint->psize_slot = i; + break; + } + } + } + + /* now really draw first point */ + stage->point = aapoint_point; + stage->point(stage, header); +} + + +static void +aapoint_flush(struct draw_stage *stage, unsigned flags) +{ + struct draw_context *draw = stage->draw; + struct aapoint_stage *aapoint = aapoint_stage(stage); + struct pipe_context *pipe = aapoint->pipe; + + stage->point = aapoint_first_point; + stage->next->flush( stage->next, flags ); + + /* restore original frag shader */ + draw->suspend_flushing = TRUE; + aapoint->driver_bind_fs_state(pipe, aapoint->fs->driver_fs); + draw->suspend_flushing = FALSE; + + draw->extra_vp_outputs.slot = 0; +} + + +static void +aapoint_reset_stipple_counter(struct draw_stage *stage) +{ + stage->next->reset_stipple_counter( stage->next ); +} + + +static void +aapoint_destroy(struct draw_stage *stage) +{ + draw_free_temp_verts( stage ); + FREE( stage ); +} + + +static struct aapoint_stage * +draw_aapoint_stage(struct draw_context *draw) +{ + struct aapoint_stage *aapoint = CALLOC_STRUCT(aapoint_stage); + if (aapoint == NULL) + goto fail; + + if (!draw_alloc_temp_verts( &aapoint->stage, 4 )) + goto fail; + + aapoint->stage.draw = draw; + aapoint->stage.next = NULL; + aapoint->stage.point = aapoint_first_point; + aapoint->stage.line = draw_pipe_passthrough_line; + aapoint->stage.tri = draw_pipe_passthrough_tri; + aapoint->stage.flush = aapoint_flush; + aapoint->stage.reset_stipple_counter = aapoint_reset_stipple_counter; + aapoint->stage.destroy = aapoint_destroy; + + return aapoint; + + fail: + if (aapoint) + aapoint_destroy(&aapoint->stage); + + return NULL; + +} + + +static struct aapoint_stage * +aapoint_stage_from_pipe(struct pipe_context *pipe) +{ + struct draw_context *draw = (struct draw_context *) pipe->draw; + return aapoint_stage(draw->pipeline.aapoint); +} + + +/** + * This function overrides the driver's create_fs_state() function and + * will typically be called by the state tracker. + */ +static void * +aapoint_create_fs_state(struct pipe_context *pipe, + const struct pipe_shader_state *fs) +{ + struct aapoint_stage *aapoint = aapoint_stage_from_pipe(pipe); + struct aapoint_fragment_shader *aafs = CALLOC_STRUCT(aapoint_fragment_shader); + if (aafs == NULL) + return NULL; + + aafs->state = *fs; + + /* pass-through */ + aafs->driver_fs = aapoint->driver_create_fs_state(aapoint->pipe, fs); + + return aafs; +} + + +static void +aapoint_bind_fs_state(struct pipe_context *pipe, void *fs) +{ + struct aapoint_stage *aapoint = aapoint_stage_from_pipe(pipe); + struct aapoint_fragment_shader *aafs = (struct aapoint_fragment_shader *) fs; + /* save current */ + aapoint->fs = aafs; + /* pass-through */ + aapoint->driver_bind_fs_state(aapoint->pipe, + (aafs ? aafs->driver_fs : NULL)); +} + + +static void +aapoint_delete_fs_state(struct pipe_context *pipe, void *fs) +{ + struct aapoint_stage *aapoint = aapoint_stage_from_pipe(pipe); + struct aapoint_fragment_shader *aafs = (struct aapoint_fragment_shader *) fs; + /* pass-through */ + aapoint->driver_delete_fs_state(aapoint->pipe, aafs->driver_fs); + FREE(aafs); +} + + +/** + * Called by drivers that want to install this AA point prim stage + * into the draw module's pipeline. This will not be used if the + * hardware has native support for AA points. + */ +boolean +draw_install_aapoint_stage(struct draw_context *draw, + struct pipe_context *pipe) +{ + struct aapoint_stage *aapoint; + + pipe->draw = (void *) draw; + + /* + * Create / install AA point drawing / prim stage + */ + aapoint = draw_aapoint_stage( draw ); + if (aapoint == NULL) + goto fail; + + aapoint->pipe = pipe; + + /* save original driver functions */ + aapoint->driver_create_fs_state = pipe->create_fs_state; + aapoint->driver_bind_fs_state = pipe->bind_fs_state; + aapoint->driver_delete_fs_state = pipe->delete_fs_state; + + /* override the driver's functions */ + pipe->create_fs_state = aapoint_create_fs_state; + pipe->bind_fs_state = aapoint_bind_fs_state; + pipe->delete_fs_state = aapoint_delete_fs_state; + + draw->pipeline.aapoint = &aapoint->stage; + + return TRUE; + + fail: + if (aapoint) + aapoint->stage.destroy( &aapoint->stage ); + + return FALSE; +} diff --git a/src/gallium/auxiliary/draw/draw_pipe_clip.c b/src/gallium/auxiliary/draw/draw_pipe_clip.c new file mode 100644 index 0000000000..3265dcd154 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe_clip.c @@ -0,0 +1,515 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * \brief Clipping stage + * + * \author Keith Whitwell <keith@tungstengraphics.com> + */ + + +#include "util/u_memory.h" +#include "util/u_math.h" + +#include "pipe/p_shader_tokens.h" + +#include "draw_vs.h" +#include "draw_pipe.h" + + +#ifndef IS_NEGATIVE +#define IS_NEGATIVE(X) ((X) < 0.0) +#endif + +#ifndef DIFFERENT_SIGNS +#define DIFFERENT_SIGNS(x, y) ((x) * (y) <= 0.0F && (x) - (y) != 0.0F) +#endif + +#ifndef MAX_CLIPPED_VERTICES +#define MAX_CLIPPED_VERTICES ((2 * (6 + PIPE_MAX_CLIP_PLANES))+1) +#endif + + + +struct clipper { + struct draw_stage stage; /**< base class */ + + /* Basically duplicate some of the flatshading logic here: + */ + boolean flat; + uint num_color_attribs; + uint color_attribs[4]; /* front/back primary/secondary colors */ + + float (*plane)[4]; +}; + + +/* This is a bit confusing: + */ +static INLINE struct clipper *clipper_stage( struct draw_stage *stage ) +{ + return (struct clipper *)stage; +} + + +#define LINTERP(T, OUT, IN) ((OUT) + (T) * ((IN) - (OUT))) + + +/* All attributes are float[4], so this is easy: + */ +static void interp_attr( float *fdst, + float t, + const float *fin, + const float *fout ) +{ + fdst[0] = LINTERP( t, fout[0], fin[0] ); + fdst[1] = LINTERP( t, fout[1], fin[1] ); + fdst[2] = LINTERP( t, fout[2], fin[2] ); + fdst[3] = LINTERP( t, fout[3], fin[3] ); +} + +static void copy_colors( struct draw_stage *stage, + struct vertex_header *dst, + const struct vertex_header *src ) +{ + const struct clipper *clipper = clipper_stage(stage); + uint i; + for (i = 0; i < clipper->num_color_attribs; i++) { + const uint attr = clipper->color_attribs[i]; + COPY_4FV(dst->data[attr], src->data[attr]); + } +} + + + +/* Interpolate between two vertices to produce a third. + */ +static void interp( const struct clipper *clip, + struct vertex_header *dst, + float t, + const struct vertex_header *out, + const struct vertex_header *in ) +{ + const unsigned nr_attrs = clip->stage.draw->vs.num_vs_outputs; + const unsigned pos_attr = clip->stage.draw->vs.position_output; + unsigned j; + + /* Vertex header. + */ + { + dst->clipmask = 0; + dst->edgeflag = 0; /* will get overwritten later */ + dst->pad = 0; + dst->vertex_id = UNDEFINED_VERTEX_ID; + } + + /* Clip coordinates: interpolate normally + */ + { + interp_attr(dst->clip, t, in->clip, out->clip); + } + + /* Do the projective divide and insert window coordinates: + */ + { + const float *pos = dst->clip; + const float *scale = clip->stage.draw->viewport.scale; + const float *trans = clip->stage.draw->viewport.translate; + const float oow = 1.0f / pos[3]; + + dst->data[pos_attr][0] = pos[0] * oow * scale[0] + trans[0]; + dst->data[pos_attr][1] = pos[1] * oow * scale[1] + trans[1]; + dst->data[pos_attr][2] = pos[2] * oow * scale[2] + trans[2]; + dst->data[pos_attr][3] = oow; + } + + /* Other attributes + */ + for (j = 0; j < nr_attrs; j++) { + if (j != pos_attr) + interp_attr(dst->data[j], t, in->data[j], out->data[j]); + } +} + + +static void emit_poly( struct draw_stage *stage, + struct vertex_header **inlist, + unsigned n, + const struct prim_header *origPrim) +{ + struct prim_header header; + unsigned i; + + const ushort edge_first = DRAW_PIPE_EDGE_FLAG_2; + const ushort edge_middle = DRAW_PIPE_EDGE_FLAG_0; + const ushort edge_last = DRAW_PIPE_EDGE_FLAG_1; + + /* later stages may need the determinant, but only the sign matters */ + header.det = origPrim->det; + header.flags = DRAW_PIPE_RESET_STIPPLE | edge_first | edge_middle; + header.pad = 0; + + for (i = 2; i < n; i++, header.flags = edge_middle) { + header.v[0] = inlist[i-1]; + header.v[1] = inlist[i]; + header.v[2] = inlist[0]; /* keep in v[2] for flatshading */ + + if (i == n-1) + header.flags |= edge_last; + + if (0) { + const struct draw_vertex_shader *vs = stage->draw->vs.vertex_shader; + uint j, k; + debug_printf("Clipped tri:\n"); + for (j = 0; j < 3; j++) { + for (k = 0; k < vs->info.num_outputs; k++) { + debug_printf(" Vert %d: Attr %d: %f %f %f %f\n", j, k, + header.v[j]->data[k][0], + header.v[j]->data[k][1], + header.v[j]->data[k][2], + header.v[j]->data[k][3]); + } + } + } + + stage->next->tri( stage->next, &header ); + } +} + +static INLINE float +dot4(const float *a, const float *b) +{ + return (a[0]*b[0] + + a[1]*b[1] + + a[2]*b[2] + + a[3]*b[3]); +} + + +/* Clip a triangle against the viewport and user clip planes. + */ +static void +do_clip_tri( struct draw_stage *stage, + struct prim_header *header, + unsigned clipmask ) +{ + struct clipper *clipper = clipper_stage( stage ); + struct vertex_header *a[MAX_CLIPPED_VERTICES]; + struct vertex_header *b[MAX_CLIPPED_VERTICES]; + struct vertex_header **inlist = a; + struct vertex_header **outlist = b; + unsigned tmpnr = 0; + unsigned n = 3; + unsigned i; + + inlist[0] = header->v[0]; + inlist[1] = header->v[1]; + inlist[2] = header->v[2]; + + while (clipmask && n >= 3) { + const unsigned plane_idx = ffs(clipmask)-1; + const float *plane = clipper->plane[plane_idx]; + struct vertex_header *vert_prev = inlist[0]; + float dp_prev = dot4( vert_prev->clip, plane ); + unsigned outcount = 0; + + clipmask &= ~(1<<plane_idx); + + inlist[n] = inlist[0]; /* prevent rotation of vertices */ + + for (i = 1; i <= n; i++) { + struct vertex_header *vert = inlist[i]; + + float dp = dot4( vert->clip, plane ); + + if (!IS_NEGATIVE(dp_prev)) { + outlist[outcount++] = vert_prev; + } + + if (DIFFERENT_SIGNS(dp, dp_prev)) { + struct vertex_header *new_vert = clipper->stage.tmp[tmpnr++]; + outlist[outcount++] = new_vert; + + if (IS_NEGATIVE(dp)) { + /* Going out of bounds. Avoid division by zero as we + * know dp != dp_prev from DIFFERENT_SIGNS, above. + */ + float t = dp / (dp - dp_prev); + interp( clipper, new_vert, t, vert, vert_prev ); + + /* Force edgeflag true in this case: + */ + new_vert->edgeflag = 1; + } else { + /* Coming back in. + */ + float t = dp_prev / (dp_prev - dp); + interp( clipper, new_vert, t, vert_prev, vert ); + + /* Copy starting vert's edgeflag: + */ + new_vert->edgeflag = vert_prev->edgeflag; + } + } + + vert_prev = vert; + dp_prev = dp; + } + + { + struct vertex_header **tmp = inlist; + inlist = outlist; + outlist = tmp; + n = outcount; + } + } + + /* If flat-shading, copy color to new provoking vertex. + */ + if (clipper->flat && inlist[0] != header->v[2]) { + if (1) { + inlist[0] = dup_vert(stage, inlist[0], tmpnr++); + } + + copy_colors(stage, inlist[0], header->v[2]); + } + + + + /* Emit the polygon as triangles to the setup stage: + */ + if (n >= 3) + emit_poly( stage, inlist, n, header ); +} + + +/* Clip a line against the viewport and user clip planes. + */ +static void +do_clip_line( struct draw_stage *stage, + struct prim_header *header, + unsigned clipmask ) +{ + const struct clipper *clipper = clipper_stage( stage ); + struct vertex_header *v0 = header->v[0]; + struct vertex_header *v1 = header->v[1]; + const float *pos0 = v0->clip; + const float *pos1 = v1->clip; + float t0 = 0.0F; + float t1 = 0.0F; + struct prim_header newprim; + + while (clipmask) { + const unsigned plane_idx = ffs(clipmask)-1; + const float *plane = clipper->plane[plane_idx]; + const float dp0 = dot4( pos0, plane ); + const float dp1 = dot4( pos1, plane ); + + if (dp1 < 0.0F) { + float t = dp1 / (dp1 - dp0); + t1 = MAX2(t1, t); + } + + if (dp0 < 0.0F) { + float t = dp0 / (dp0 - dp1); + t0 = MAX2(t0, t); + } + + if (t0 + t1 >= 1.0F) + return; /* discard */ + + clipmask &= ~(1 << plane_idx); /* turn off this plane's bit */ + } + + if (v0->clipmask) { + interp( clipper, stage->tmp[0], t0, v0, v1 ); + + if (clipper->flat) + copy_colors(stage, stage->tmp[0], v0); + + newprim.v[0] = stage->tmp[0]; + } + else { + newprim.v[0] = v0; + } + + if (v1->clipmask) { + interp( clipper, stage->tmp[1], t1, v1, v0 ); + newprim.v[1] = stage->tmp[1]; + } + else { + newprim.v[1] = v1; + } + + stage->next->line( stage->next, &newprim ); +} + + +static void +clip_point( struct draw_stage *stage, + struct prim_header *header ) +{ + if (header->v[0]->clipmask == 0) + stage->next->point( stage->next, header ); +} + + +static void +clip_line( struct draw_stage *stage, + struct prim_header *header ) +{ + unsigned clipmask = (header->v[0]->clipmask | + header->v[1]->clipmask); + + if (clipmask == 0) { + /* no clipping needed */ + stage->next->line( stage->next, header ); + } + else if ((header->v[0]->clipmask & + header->v[1]->clipmask) == 0) { + do_clip_line(stage, header, clipmask); + } + /* else, totally clipped */ +} + + +static void +clip_tri( struct draw_stage *stage, + struct prim_header *header ) +{ + unsigned clipmask = (header->v[0]->clipmask | + header->v[1]->clipmask | + header->v[2]->clipmask); + + if (clipmask == 0) { + /* no clipping needed */ + stage->next->tri( stage->next, header ); + } + else if ((header->v[0]->clipmask & + header->v[1]->clipmask & + header->v[2]->clipmask) == 0) { + do_clip_tri(stage, header, clipmask); + } +} + +/* Update state. Could further delay this until we hit the first + * primitive that really requires clipping. + */ +static void +clip_init_state( struct draw_stage *stage ) +{ + struct clipper *clipper = clipper_stage( stage ); + + clipper->flat = stage->draw->rasterizer->flatshade ? TRUE : FALSE; + + if (clipper->flat) { + const struct draw_vertex_shader *vs = stage->draw->vs.vertex_shader; + uint i; + + clipper->num_color_attribs = 0; + for (i = 0; i < vs->info.num_outputs; i++) { + if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_COLOR || + vs->info.output_semantic_name[i] == TGSI_SEMANTIC_BCOLOR) { + clipper->color_attribs[clipper->num_color_attribs++] = i; + } + } + } + + stage->tri = clip_tri; + stage->line = clip_line; +} + + + +static void clip_first_tri( struct draw_stage *stage, + struct prim_header *header ) +{ + clip_init_state( stage ); + stage->tri( stage, header ); +} + +static void clip_first_line( struct draw_stage *stage, + struct prim_header *header ) +{ + clip_init_state( stage ); + stage->line( stage, header ); +} + + +static void clip_flush( struct draw_stage *stage, + unsigned flags ) +{ + stage->tri = clip_first_tri; + stage->line = clip_first_line; + stage->next->flush( stage->next, flags ); +} + + +static void clip_reset_stipple_counter( struct draw_stage *stage ) +{ + stage->next->reset_stipple_counter( stage->next ); +} + + +static void clip_destroy( struct draw_stage *stage ) +{ + draw_free_temp_verts( stage ); + FREE( stage ); +} + + +/** + * Allocate a new clipper stage. + * \return pointer to new stage object + */ +struct draw_stage *draw_clip_stage( struct draw_context *draw ) +{ + struct clipper *clipper = CALLOC_STRUCT(clipper); + if (clipper == NULL) + goto fail; + + if (!draw_alloc_temp_verts( &clipper->stage, MAX_CLIPPED_VERTICES+1 )) + goto fail; + + clipper->stage.draw = draw; + clipper->stage.point = clip_point; + clipper->stage.line = clip_first_line; + clipper->stage.tri = clip_first_tri; + clipper->stage.flush = clip_flush; + clipper->stage.reset_stipple_counter = clip_reset_stipple_counter; + clipper->stage.destroy = clip_destroy; + + clipper->plane = draw->plane; + + return &clipper->stage; + + fail: + if (clipper) + clipper->stage.destroy( &clipper->stage ); + + return NULL; +} diff --git a/src/gallium/auxiliary/draw/draw_pipe_cull.c b/src/gallium/auxiliary/draw/draw_pipe_cull.c new file mode 100644 index 0000000000..053be5f050 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe_cull.c @@ -0,0 +1,147 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * \brief Drawing stage for polygon culling + */ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + + +#include "util/u_memory.h" +#include "pipe/p_defines.h" +#include "draw_pipe.h" + + +struct cull_stage { + struct draw_stage stage; + unsigned winding; /**< which winding(s) to cull (one of PIPE_WINDING_x) */ +}; + + +static INLINE struct cull_stage *cull_stage( struct draw_stage *stage ) +{ + return (struct cull_stage *)stage; +} + + + + +static void cull_tri( struct draw_stage *stage, + struct prim_header *header ) +{ + const unsigned pos = stage->draw->vs.position_output; + + /* Window coords: */ + const float *v0 = header->v[0]->data[pos]; + const float *v1 = header->v[1]->data[pos]; + const float *v2 = header->v[2]->data[pos]; + + /* edge vectors e = v0 - v2, f = v1 - v2 */ + const float ex = v0[0] - v2[0]; + const float ey = v0[1] - v2[1]; + const float fx = v1[0] - v2[0]; + const float fy = v1[1] - v2[1]; + + /* det = cross(e,f).z */ + header->det = ex * fy - ey * fx; + + if (header->det != 0) { + /* if (det < 0 then Z points toward camera and triangle is + * counter-clockwise winding. + */ + unsigned winding = (header->det < 0) ? PIPE_WINDING_CCW : PIPE_WINDING_CW; + + if ((winding & cull_stage(stage)->winding) == 0) { + /* triangle is not culled, pass to next stage */ + stage->next->tri( stage->next, header ); + } + } +} + +static void cull_first_tri( struct draw_stage *stage, + struct prim_header *header ) +{ + struct cull_stage *cull = cull_stage(stage); + + cull->winding = stage->draw->rasterizer->cull_mode; + + stage->tri = cull_tri; + stage->tri( stage, header ); +} + + + +static void cull_flush( struct draw_stage *stage, unsigned flags ) +{ + stage->tri = cull_first_tri; + stage->next->flush( stage->next, flags ); +} + +static void cull_reset_stipple_counter( struct draw_stage *stage ) +{ + stage->next->reset_stipple_counter( stage->next ); +} + + +static void cull_destroy( struct draw_stage *stage ) +{ + draw_free_temp_verts( stage ); + FREE( stage ); +} + + +/** + * Create a new polygon culling stage. + */ +struct draw_stage *draw_cull_stage( struct draw_context *draw ) +{ + struct cull_stage *cull = CALLOC_STRUCT(cull_stage); + if (cull == NULL) + goto fail; + + if (!draw_alloc_temp_verts( &cull->stage, 0 )) + goto fail; + + cull->stage.draw = draw; + cull->stage.next = NULL; + cull->stage.point = draw_pipe_passthrough_point; + cull->stage.line = draw_pipe_passthrough_line; + cull->stage.tri = cull_first_tri; + cull->stage.flush = cull_flush; + cull->stage.reset_stipple_counter = cull_reset_stipple_counter; + cull->stage.destroy = cull_destroy; + + return &cull->stage; + + fail: + if (cull) + cull->stage.destroy( &cull->stage ); + + return NULL; +} diff --git a/src/gallium/auxiliary/draw/draw_pipe_flatshade.c b/src/gallium/auxiliary/draw/draw_pipe_flatshade.c new file mode 100644 index 0000000000..43d1fecc4d --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe_flatshade.c @@ -0,0 +1,281 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "util/u_math.h" +#include "util/u_memory.h" + +#include "pipe/p_shader_tokens.h" +#include "draw_vs.h" +#include "draw_pipe.h" + + +/** subclass of draw_stage */ +struct flat_stage +{ + struct draw_stage stage; + + uint num_color_attribs; + uint color_attribs[2]; /* front/back primary colors */ + + uint num_spec_attribs; + uint spec_attribs[2]; /* front/back secondary colors */ +}; + +#define COPY_3FV( DST, SRC ) \ +do { \ + (DST)[0] = (SRC)[0]; \ + (DST)[1] = (SRC)[1]; \ + (DST)[2] = (SRC)[2]; \ +} while (0) + + +static INLINE struct flat_stage * +flat_stage(struct draw_stage *stage) +{ + return (struct flat_stage *) stage; +} + + +/** Copy all the color attributes from 'src' vertex to 'dst' vertex */ +static INLINE void copy_colors( struct draw_stage *stage, + struct vertex_header *dst, + const struct vertex_header *src ) +{ + const struct flat_stage *flat = flat_stage(stage); + uint i; + + for (i = 0; i < flat->num_color_attribs; i++) { + const uint attr = flat->color_attribs[i]; + COPY_4FV(dst->data[attr], src->data[attr]); + } + + for (i = 0; i < flat->num_spec_attribs; i++) { + const uint attr = flat->spec_attribs[i]; + COPY_3FV(dst->data[attr], src->data[attr]); + } +} + + +/** Copy all the color attributes from src vertex to dst0 & dst1 vertices */ +static INLINE void copy_colors2( struct draw_stage *stage, + struct vertex_header *dst0, + struct vertex_header *dst1, + const struct vertex_header *src ) +{ + const struct flat_stage *flat = flat_stage(stage); + uint i; + for (i = 0; i < flat->num_color_attribs; i++) { + const uint attr = flat->color_attribs[i]; + COPY_4FV(dst0->data[attr], src->data[attr]); + COPY_4FV(dst1->data[attr], src->data[attr]); + } + + for (i = 0; i < flat->num_spec_attribs; i++) { + const uint attr = flat->spec_attribs[i]; + COPY_3FV(dst0->data[attr], src->data[attr]); + COPY_3FV(dst1->data[attr], src->data[attr]); + } +} + + +/** + * Flatshade tri. Required for clipping and when unfilled tris are + * active, otherwise handled by hardware. + */ +static void flatshade_tri_0( struct draw_stage *stage, + struct prim_header *header ) +{ + struct prim_header tmp; + + tmp.det = header->det; + tmp.flags = header->flags; + tmp.pad = header->pad; + tmp.v[0] = header->v[0]; + tmp.v[1] = dup_vert(stage, header->v[1], 0); + tmp.v[2] = dup_vert(stage, header->v[2], 1); + + copy_colors2(stage, tmp.v[1], tmp.v[2], tmp.v[0]); + + stage->next->tri( stage->next, &tmp ); +} + + +static void flatshade_tri_2( struct draw_stage *stage, + struct prim_header *header ) +{ + struct prim_header tmp; + + tmp.det = header->det; + tmp.flags = header->flags; + tmp.pad = header->pad; + tmp.v[0] = dup_vert(stage, header->v[0], 0); + tmp.v[1] = dup_vert(stage, header->v[1], 1); + tmp.v[2] = header->v[2]; + + copy_colors2(stage, tmp.v[0], tmp.v[1], tmp.v[2]); + + stage->next->tri( stage->next, &tmp ); +} + + + + + +/** + * Flatshade line. Required for clipping. + */ +static void flatshade_line_0( struct draw_stage *stage, + struct prim_header *header ) +{ + struct prim_header tmp; + + tmp.v[0] = header->v[0]; + tmp.v[1] = dup_vert(stage, header->v[1], 0); + + copy_colors(stage, tmp.v[1], tmp.v[0]); + + stage->next->line( stage->next, &tmp ); +} + +static void flatshade_line_1( struct draw_stage *stage, + struct prim_header *header ) +{ + struct prim_header tmp; + + tmp.v[0] = dup_vert(stage, header->v[0], 0); + tmp.v[1] = header->v[1]; + + copy_colors(stage, tmp.v[0], tmp.v[1]); + + stage->next->line( stage->next, &tmp ); +} + + + + +static void flatshade_init_state( struct draw_stage *stage ) +{ + struct flat_stage *flat = flat_stage(stage); + const struct draw_vertex_shader *vs = stage->draw->vs.vertex_shader; + uint i; + + /* Find which vertex shader outputs are colors, make a list */ + flat->num_color_attribs = 0; + flat->num_spec_attribs = 0; + for (i = 0; i < vs->info.num_outputs; i++) { + if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_COLOR || + vs->info.output_semantic_name[i] == TGSI_SEMANTIC_BCOLOR) { + if (vs->info.output_semantic_index[i] == 0) + flat->color_attribs[flat->num_color_attribs++] = i; + else + flat->spec_attribs[flat->num_spec_attribs++] = i; + } + } + + /* Choose flatshade routine according to provoking vertex: + */ + if (stage->draw->rasterizer->flatshade_first) { + stage->line = flatshade_line_0; + stage->tri = flatshade_tri_0; + } + else { + stage->line = flatshade_line_1; + stage->tri = flatshade_tri_2; + } +} + +static void flatshade_first_tri( struct draw_stage *stage, + struct prim_header *header ) +{ + flatshade_init_state( stage ); + stage->tri( stage, header ); +} + +static void flatshade_first_line( struct draw_stage *stage, + struct prim_header *header ) +{ + flatshade_init_state( stage ); + stage->line( stage, header ); +} + + +static void flatshade_flush( struct draw_stage *stage, + unsigned flags ) +{ + stage->tri = flatshade_first_tri; + stage->line = flatshade_first_line; + stage->next->flush( stage->next, flags ); +} + + +static void flatshade_reset_stipple_counter( struct draw_stage *stage ) +{ + stage->next->reset_stipple_counter( stage->next ); +} + + +static void flatshade_destroy( struct draw_stage *stage ) +{ + draw_free_temp_verts( stage ); + FREE( stage ); +} + + +/** + * Create flatshading drawing stage. + */ +struct draw_stage *draw_flatshade_stage( struct draw_context *draw ) +{ + struct flat_stage *flatshade = CALLOC_STRUCT(flat_stage); + if (flatshade == NULL) + goto fail; + + if (!draw_alloc_temp_verts( &flatshade->stage, 2 )) + goto fail; + + flatshade->stage.draw = draw; + flatshade->stage.next = NULL; + flatshade->stage.point = draw_pipe_passthrough_point; + flatshade->stage.line = flatshade_first_line; + flatshade->stage.tri = flatshade_first_tri; + flatshade->stage.flush = flatshade_flush; + flatshade->stage.reset_stipple_counter = flatshade_reset_stipple_counter; + flatshade->stage.destroy = flatshade_destroy; + + return &flatshade->stage; + + fail: + if (flatshade) + flatshade->stage.destroy( &flatshade->stage ); + + return NULL; +} + + diff --git a/src/gallium/auxiliary/draw/draw_pipe_offset.c b/src/gallium/auxiliary/draw/draw_pipe_offset.c new file mode 100644 index 0000000000..1fea5e6dcb --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe_offset.c @@ -0,0 +1,185 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * \brief polygon offset state + * + * \author Keith Whitwell <keith@tungstengraphics.com> + * \author Brian Paul + */ + +#include "util/u_math.h" +#include "util/u_memory.h" +#include "draw_pipe.h" + + + +struct offset_stage { + struct draw_stage stage; + + float scale; + float units; +}; + + + +static INLINE struct offset_stage *offset_stage( struct draw_stage *stage ) +{ + return (struct offset_stage *) stage; +} + + + + + +/** + * Offset tri Z. Some hardware can handle this, but not usually when + * doing unfilled rendering. + */ +static void do_offset_tri( struct draw_stage *stage, + struct prim_header *header ) +{ + const unsigned pos = stage->draw->vs.position_output; + struct offset_stage *offset = offset_stage(stage); + float inv_det = 1.0f / header->det; + + /* Window coords: + */ + float *v0 = header->v[0]->data[pos]; + float *v1 = header->v[1]->data[pos]; + float *v2 = header->v[2]->data[pos]; + + /* edge vectors e = v0 - v2, f = v1 - v2 */ + float ex = v0[0] - v2[0]; + float ey = v0[1] - v2[1]; + float ez = v0[2] - v2[2]; + float fx = v1[0] - v2[0]; + float fy = v1[1] - v2[1]; + float fz = v1[2] - v2[2]; + + /* (a,b) = cross(e,f).xy */ + float a = ey*fz - ez*fy; + float b = ez*fx - ex*fz; + + float dzdx = fabsf(a * inv_det); + float dzdy = fabsf(b * inv_det); + + float zoffset = offset->units + MAX2(dzdx, dzdy) * offset->scale; + + /* + * Note: we're applying the offset and clamping per-vertex. + * Ideally, the offset is applied per-fragment prior to fragment shading. + */ + v0[2] = CLAMP(v0[2] + zoffset, 0.0f, 1.0f); + v1[2] = CLAMP(v1[2] + zoffset, 0.0f, 1.0f); + v2[2] = CLAMP(v2[2] + zoffset, 0.0f, 1.0f); + + stage->next->tri( stage->next, header ); +} + + +static void offset_tri( struct draw_stage *stage, + struct prim_header *header ) +{ + struct prim_header tmp; + + tmp.det = header->det; + tmp.flags = header->flags; + tmp.pad = header->pad; + tmp.v[0] = dup_vert(stage, header->v[0], 0); + tmp.v[1] = dup_vert(stage, header->v[1], 1); + tmp.v[2] = dup_vert(stage, header->v[2], 2); + + do_offset_tri( stage, &tmp ); +} + + +static void offset_first_tri( struct draw_stage *stage, + struct prim_header *header ) +{ + struct offset_stage *offset = offset_stage(stage); + float mrd = 1.0f / 65535.0f; /* XXX this depends on depthbuffer bits! */ + + offset->units = stage->draw->rasterizer->offset_units * mrd; + offset->scale = stage->draw->rasterizer->offset_scale; + + stage->tri = offset_tri; + stage->tri( stage, header ); +} + + + + +static void offset_flush( struct draw_stage *stage, + unsigned flags ) +{ + stage->tri = offset_first_tri; + stage->next->flush( stage->next, flags ); +} + + +static void offset_reset_stipple_counter( struct draw_stage *stage ) +{ + stage->next->reset_stipple_counter( stage->next ); +} + + +static void offset_destroy( struct draw_stage *stage ) +{ + draw_free_temp_verts( stage ); + FREE( stage ); +} + + +/** + * Create polygon offset drawing stage. + */ +struct draw_stage *draw_offset_stage( struct draw_context *draw ) +{ + struct offset_stage *offset = CALLOC_STRUCT(offset_stage); + if (offset == NULL) + goto fail; + + draw_alloc_temp_verts( &offset->stage, 3 ); + + offset->stage.draw = draw; + offset->stage.next = NULL; + offset->stage.point = draw_pipe_passthrough_point; + offset->stage.line = draw_pipe_passthrough_line; + offset->stage.tri = offset_first_tri; + offset->stage.flush = offset_flush; + offset->stage.reset_stipple_counter = offset_reset_stipple_counter; + offset->stage.destroy = offset_destroy; + + return &offset->stage; + + fail: + if (offset) + offset->stage.destroy( &offset->stage ); + + return NULL; +} diff --git a/src/gallium/auxiliary/draw/draw_pipe_pstipple.c b/src/gallium/auxiliary/draw/draw_pipe_pstipple.c new file mode 100644 index 0000000000..b764d9c518 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe_pstipple.c @@ -0,0 +1,770 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * Polygon stipple stage: implement polygon stipple with texture map and + * fragment program. The fragment program samples the texture and does + * a fragment kill for the stipple-failing fragments. + * + * Authors: Brian Paul + */ + + +#include "pipe/p_inlines.h" +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_shader_tokens.h" + +#include "util/u_math.h" +#include "util/u_memory.h" + +#include "tgsi/tgsi_transform.h" +#include "tgsi/tgsi_dump.h" + +#include "draw_context.h" +#include "draw_pipe.h" + + + +/** + * Subclass of pipe_shader_state to carry extra fragment shader info. + */ +struct pstip_fragment_shader +{ + struct pipe_shader_state state; + void *driver_fs; + void *pstip_fs; + uint sampler_unit; +}; + + +/** + * Subclass of draw_stage + */ +struct pstip_stage +{ + struct draw_stage stage; + + void *sampler_cso; + struct pipe_texture *texture; + uint num_samplers; + uint num_textures; + + /* + * Currently bound state + */ + struct pstip_fragment_shader *fs; + struct { + void *samplers[PIPE_MAX_SAMPLERS]; + struct pipe_texture *textures[PIPE_MAX_SAMPLERS]; + const struct pipe_poly_stipple *stipple; + } state; + + /* + * Driver interface/override functions + */ + void * (*driver_create_fs_state)(struct pipe_context *, + const struct pipe_shader_state *); + void (*driver_bind_fs_state)(struct pipe_context *, void *); + void (*driver_delete_fs_state)(struct pipe_context *, void *); + + void (*driver_bind_sampler_states)(struct pipe_context *, unsigned, void **); + + void (*driver_set_sampler_textures)(struct pipe_context *, unsigned, + struct pipe_texture **); + + void (*driver_set_polygon_stipple)(struct pipe_context *, + const struct pipe_poly_stipple *); + + struct pipe_context *pipe; +}; + + + +/** + * Subclass of tgsi_transform_context, used for transforming the + * user's fragment shader to add the special AA instructions. + */ +struct pstip_transform_context { + struct tgsi_transform_context base; + uint tempsUsed; /**< bitmask */ + int wincoordInput; + int maxInput; + uint samplersUsed; /**< bitfield of samplers used */ + int freeSampler; /** an available sampler for the pstipple */ + int texTemp; /**< temp registers */ + int numImmed; + boolean firstInstruction; +}; + + +/** + * TGSI declaration transform callback. + * Look for a free sampler, a free input attrib, and two free temp regs. + */ +static void +pstip_transform_decl(struct tgsi_transform_context *ctx, + struct tgsi_full_declaration *decl) +{ + struct pstip_transform_context *pctx = (struct pstip_transform_context *) ctx; + + if (decl->Declaration.File == TGSI_FILE_SAMPLER) { + uint i; + for (i = decl->DeclarationRange.First; + i <= decl->DeclarationRange.Last; i++) { + pctx->samplersUsed |= 1 << i; + } + } + else if (decl->Declaration.File == TGSI_FILE_INPUT) { + pctx->maxInput = MAX2(pctx->maxInput, (int) decl->DeclarationRange.Last); + if (decl->Semantic.SemanticName == TGSI_SEMANTIC_POSITION) + pctx->wincoordInput = (int) decl->DeclarationRange.First; + } + else if (decl->Declaration.File == TGSI_FILE_TEMPORARY) { + uint i; + for (i = decl->DeclarationRange.First; + i <= decl->DeclarationRange.Last; i++) { + pctx->tempsUsed |= (1 << i); + } + } + + ctx->emit_declaration(ctx, decl); +} + + +static void +pstip_transform_immed(struct tgsi_transform_context *ctx, + struct tgsi_full_immediate *immed) +{ + struct pstip_transform_context *pctx = (struct pstip_transform_context *) ctx; + pctx->numImmed++; +} + + +/** + * Find the lowest zero bit in the given word, or -1 if bitfield is all ones. + */ +static int +free_bit(uint bitfield) +{ + int i; + for (i = 0; i < 32; i++) { + if ((bitfield & (1 << i)) == 0) + return i; + } + return -1; +} + + +/** + * TGSI instruction transform callback. + * Replace writes to result.color w/ a temp reg. + * Upon END instruction, insert texture sampling code for antialiasing. + */ +static void +pstip_transform_inst(struct tgsi_transform_context *ctx, + struct tgsi_full_instruction *inst) +{ + struct pstip_transform_context *pctx = (struct pstip_transform_context *) ctx; + + if (pctx->firstInstruction) { + /* emit our new declarations before the first instruction */ + + struct tgsi_full_declaration decl; + struct tgsi_full_instruction newInst; + uint i; + int wincoordInput; + + /* find free sampler */ + pctx->freeSampler = free_bit(pctx->samplersUsed); + if (pctx->freeSampler >= PIPE_MAX_SAMPLERS) + pctx->freeSampler = PIPE_MAX_SAMPLERS - 1; + + if (pctx->wincoordInput < 0) + wincoordInput = pctx->maxInput + 1; + else + wincoordInput = pctx->wincoordInput; + + /* find one free temp reg */ + for (i = 0; i < 32; i++) { + if ((pctx->tempsUsed & (1 << i)) == 0) { + /* found a free temp */ + if (pctx->texTemp < 0) + pctx->texTemp = i; + else + break; + } + } + assert(pctx->texTemp >= 0); + + if (pctx->wincoordInput < 0) { + /* declare new position input reg */ + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_INPUT; + decl.Declaration.Interpolate = TGSI_INTERPOLATE_LINEAR; /* XXX? */ + decl.Declaration.Semantic = 1; + decl.Semantic.SemanticName = TGSI_SEMANTIC_POSITION; + decl.Semantic.SemanticIndex = 0; + decl.DeclarationRange.First = + decl.DeclarationRange.Last = wincoordInput; + ctx->emit_declaration(ctx, &decl); + } + + /* declare new sampler */ + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_SAMPLER; + decl.DeclarationRange.First = + decl.DeclarationRange.Last = pctx->freeSampler; + ctx->emit_declaration(ctx, &decl); + + /* declare new temp regs */ + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_TEMPORARY; + decl.DeclarationRange.First = + decl.DeclarationRange.Last = pctx->texTemp; + ctx->emit_declaration(ctx, &decl); + + /* emit immediate = {1/32, 1/32, 1, 1} + * The index/position of this immediate will be pctx->numImmed + */ + { + static const float value[4] = { 1.0/32, 1.0/32, 1.0, 1.0 }; + struct tgsi_full_immediate immed; + uint size = 4; + immed = tgsi_default_full_immediate(); + immed.Immediate.Size = 1 + size; /* one for the token itself */ + immed.u.Pointer = (void *) value; + ctx->emit_immediate(ctx, &immed); + } + + pctx->firstInstruction = FALSE; + + + /* + * Insert new MUL/TEX/KILP instructions at start of program + * Take gl_FragCoord, divide by 32 (stipple size), sample the + * texture and kill fragment if needed. + * + * We'd like to use non-normalized texcoords to index into a RECT + * texture, but we can only use GL_REPEAT wrap mode with normalized + * texcoords. Darn. + */ + + /* MUL texTemp, INPUT[wincoord], 1/32; */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_MUL; + newInst.Instruction.NumDstRegs = 1; + newInst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullDstRegisters[0].DstRegister.Index = pctx->texTemp; + newInst.Instruction.NumSrcRegs = 2; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_INPUT; + newInst.FullSrcRegisters[0].SrcRegister.Index = wincoordInput; + newInst.FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_IMMEDIATE; + newInst.FullSrcRegisters[1].SrcRegister.Index = pctx->numImmed; + ctx->emit_instruction(ctx, &newInst); + + /* TEX texTemp, texTemp, sampler; */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_TEX; + newInst.Instruction.NumDstRegs = 1; + newInst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullDstRegisters[0].DstRegister.Index = pctx->texTemp; + newInst.Instruction.NumSrcRegs = 2; + newInst.InstructionExtTexture.Texture = TGSI_TEXTURE_2D; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[0].SrcRegister.Index = pctx->texTemp; + newInst.FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_SAMPLER; + newInst.FullSrcRegisters[1].SrcRegister.Index = pctx->freeSampler; + ctx->emit_instruction(ctx, &newInst); + + /* KIL -texTemp; # if -texTemp < 0, KILL fragment */ + newInst = tgsi_default_full_instruction(); + newInst.Instruction.Opcode = TGSI_OPCODE_KIL; + newInst.Instruction.NumDstRegs = 0; + newInst.Instruction.NumSrcRegs = 1; + newInst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_TEMPORARY; + newInst.FullSrcRegisters[0].SrcRegister.Index = pctx->texTemp; + newInst.FullSrcRegisters[0].SrcRegister.Negate = 1; + ctx->emit_instruction(ctx, &newInst); + } + + /* emit this instruction */ + ctx->emit_instruction(ctx, inst); +} + + +/** + * Generate the frag shader we'll use for doing polygon stipple. + * This will be the user's shader prefixed with a TEX and KIL instruction. + */ +static boolean +generate_pstip_fs(struct pstip_stage *pstip) +{ + const struct pipe_shader_state *orig_fs = &pstip->fs->state; + /*struct draw_context *draw = pstip->stage.draw;*/ + struct pipe_shader_state pstip_fs; + struct pstip_transform_context transform; + +#define MAX 1000 + + pstip_fs = *orig_fs; /* copy to init */ + pstip_fs.tokens = MALLOC(sizeof(struct tgsi_token) * MAX); + if (pstip_fs.tokens == NULL) + return FALSE; + + memset(&transform, 0, sizeof(transform)); + transform.wincoordInput = -1; + transform.maxInput = -1; + transform.texTemp = -1; + transform.firstInstruction = TRUE; + transform.base.transform_instruction = pstip_transform_inst; + transform.base.transform_declaration = pstip_transform_decl; + transform.base.transform_immediate = pstip_transform_immed; + + tgsi_transform_shader(orig_fs->tokens, + (struct tgsi_token *) pstip_fs.tokens, + MAX, &transform.base); + +#if 0 /* DEBUG */ + tgsi_dump(orig_fs->tokens, 0); + tgsi_dump(pstip_fs.tokens, 0); +#endif + + pstip->fs->sampler_unit = transform.freeSampler; + assert(pstip->fs->sampler_unit < PIPE_MAX_SAMPLERS); + + pstip->fs->pstip_fs = pstip->driver_create_fs_state(pstip->pipe, &pstip_fs); + + return TRUE; +} + + +/** + * Load texture image with current stipple pattern. + */ +static void +pstip_update_texture(struct pstip_stage *pstip) +{ + static const uint bit31 = 1 << 31; + struct pipe_context *pipe = pstip->pipe; + struct pipe_screen *screen = pipe->screen; + struct pipe_surface *surface; + const uint *stipple = pstip->state.stipple->stipple; + uint i, j; + ubyte *data; + + /* XXX: want to avoid flushing just because we use stipple: + */ + pipe->flush( pipe, PIPE_FLUSH_TEXTURE_CACHE, NULL ); + + surface = screen->get_tex_surface(screen, pstip->texture, 0, 0, 0, + PIPE_BUFFER_USAGE_CPU_WRITE); + data = screen->surface_map(screen, surface, + PIPE_BUFFER_USAGE_CPU_WRITE); + + /* + * Load alpha texture. + * Note: 0 means keep the fragment, 255 means kill it. + * We'll negate the texel value and use KILP which kills if value + * is negative. + */ + for (i = 0; i < 32; i++) { + for (j = 0; j < 32; j++) { + if (stipple[i] & (bit31 >> j)) { + /* fragment "on" */ + data[i * surface->stride + j] = 0; + } + else { + /* fragment "off" */ + data[i * surface->stride + j] = 255; + } + } + } + + /* unmap */ + screen->surface_unmap(screen, surface); + screen->tex_surface_release(screen, &surface); +} + + +/** + * Create the texture map we'll use for stippling. + */ +static boolean +pstip_create_texture(struct pstip_stage *pstip) +{ + struct pipe_context *pipe = pstip->pipe; + struct pipe_screen *screen = pipe->screen; + struct pipe_texture texTemp; + + memset(&texTemp, 0, sizeof(texTemp)); + texTemp.target = PIPE_TEXTURE_2D; + texTemp.format = PIPE_FORMAT_A8_UNORM; /* XXX verify supported by driver! */ + texTemp.last_level = 0; + texTemp.width[0] = 32; + texTemp.height[0] = 32; + texTemp.depth[0] = 1; + pf_get_block(texTemp.format, &texTemp.block); + + pstip->texture = screen->texture_create(screen, &texTemp); + if (pstip->texture == NULL) + return FALSE; + + return TRUE; +} + + +/** + * Create the sampler CSO that'll be used for stippling. + */ +static boolean +pstip_create_sampler(struct pstip_stage *pstip) +{ + struct pipe_sampler_state sampler; + struct pipe_context *pipe = pstip->pipe; + + memset(&sampler, 0, sizeof(sampler)); + sampler.wrap_s = PIPE_TEX_WRAP_REPEAT; + sampler.wrap_t = PIPE_TEX_WRAP_REPEAT; + sampler.wrap_r = PIPE_TEX_WRAP_REPEAT; + sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; + sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; + sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; + sampler.normalized_coords = 1; + sampler.min_lod = 0.0f; + sampler.max_lod = 0.0f; + + pstip->sampler_cso = pipe->create_sampler_state(pipe, &sampler); + if (pstip->sampler_cso == NULL) + return FALSE; + + return TRUE; +} + + +/** + * When we're about to draw our first stipple polygon in a batch, this function + * is called to tell the driver to bind our modified fragment shader. + */ +static boolean +bind_pstip_fragment_shader(struct pstip_stage *pstip) +{ + struct draw_context *draw = pstip->stage.draw; + if (!pstip->fs->pstip_fs && + !generate_pstip_fs(pstip)) + return FALSE; + + draw->suspend_flushing = TRUE; + pstip->driver_bind_fs_state(pstip->pipe, pstip->fs->pstip_fs); + draw->suspend_flushing = FALSE; + return TRUE; +} + + +static INLINE struct pstip_stage * +pstip_stage( struct draw_stage *stage ) +{ + return (struct pstip_stage *) stage; +} + + +static void +pstip_first_tri(struct draw_stage *stage, struct prim_header *header) +{ + struct pstip_stage *pstip = pstip_stage(stage); + struct pipe_context *pipe = pstip->pipe; + struct draw_context *draw = stage->draw; + uint num_samplers; + + assert(stage->draw->rasterizer->poly_stipple_enable); + + /* bind our fragprog */ + if (!bind_pstip_fragment_shader(pstip)) { + stage->tri = draw_pipe_passthrough_tri; + stage->tri(stage, header); + return; + } + + + /* how many samplers? */ + /* we'll use sampler/texture[pstip->sampler_unit] for the stipple */ + num_samplers = MAX2(pstip->num_textures, pstip->num_samplers); + num_samplers = MAX2(num_samplers, pstip->fs->sampler_unit + 1); + + /* plug in our sampler, texture */ + pstip->state.samplers[pstip->fs->sampler_unit] = pstip->sampler_cso; + pipe_texture_reference(&pstip->state.textures[pstip->fs->sampler_unit], + pstip->texture); + + assert(num_samplers <= PIPE_MAX_SAMPLERS); + + draw->suspend_flushing = TRUE; + pstip->driver_bind_sampler_states(pipe, num_samplers, pstip->state.samplers); + pstip->driver_set_sampler_textures(pipe, num_samplers, pstip->state.textures); + draw->suspend_flushing = FALSE; + + /* now really draw first triangle */ + stage->tri = draw_pipe_passthrough_tri; + stage->tri(stage, header); +} + + +static void +pstip_flush(struct draw_stage *stage, unsigned flags) +{ + struct draw_context *draw = stage->draw; + struct pstip_stage *pstip = pstip_stage(stage); + struct pipe_context *pipe = pstip->pipe; + + stage->tri = pstip_first_tri; + stage->next->flush( stage->next, flags ); + + /* restore original frag shader, texture, sampler state */ + draw->suspend_flushing = TRUE; + pstip->driver_bind_fs_state(pipe, pstip->fs->driver_fs); + pstip->driver_bind_sampler_states(pipe, pstip->num_samplers, + pstip->state.samplers); + pstip->driver_set_sampler_textures(pipe, pstip->num_textures, + pstip->state.textures); + draw->suspend_flushing = FALSE; +} + + +static void +pstip_reset_stipple_counter(struct draw_stage *stage) +{ + stage->next->reset_stipple_counter( stage->next ); +} + + +static void +pstip_destroy(struct draw_stage *stage) +{ + struct pstip_stage *pstip = pstip_stage(stage); + uint i; + + for (i = 0; i < PIPE_MAX_SAMPLERS; i++) { + pipe_texture_reference(&pstip->state.textures[i], NULL); + } + + pstip->pipe->delete_sampler_state(pstip->pipe, pstip->sampler_cso); + + pipe_texture_release(&pstip->texture); + + draw_free_temp_verts( stage ); + FREE( stage ); +} + + +static struct pstip_stage * +draw_pstip_stage(struct draw_context *draw) +{ + struct pstip_stage *pstip = CALLOC_STRUCT(pstip_stage); + + draw_alloc_temp_verts( &pstip->stage, 8 ); + + pstip->stage.draw = draw; + pstip->stage.next = NULL; + pstip->stage.point = draw_pipe_passthrough_point; + pstip->stage.line = draw_pipe_passthrough_line; + pstip->stage.tri = pstip_first_tri; + pstip->stage.flush = pstip_flush; + pstip->stage.reset_stipple_counter = pstip_reset_stipple_counter; + pstip->stage.destroy = pstip_destroy; + + return pstip; +} + + +static struct pstip_stage * +pstip_stage_from_pipe(struct pipe_context *pipe) +{ + struct draw_context *draw = (struct draw_context *) pipe->draw; + return pstip_stage(draw->pipeline.pstipple); +} + + +/** + * This function overrides the driver's create_fs_state() function and + * will typically be called by the state tracker. + */ +static void * +pstip_create_fs_state(struct pipe_context *pipe, + const struct pipe_shader_state *fs) +{ + struct pstip_stage *pstip = pstip_stage_from_pipe(pipe); + struct pstip_fragment_shader *aafs = CALLOC_STRUCT(pstip_fragment_shader); + + if (aafs) { + aafs->state = *fs; + + /* pass-through */ + aafs->driver_fs = pstip->driver_create_fs_state(pstip->pipe, fs); + } + + return aafs; +} + + +static void +pstip_bind_fs_state(struct pipe_context *pipe, void *fs) +{ + struct pstip_stage *pstip = pstip_stage_from_pipe(pipe); + struct pstip_fragment_shader *aafs = (struct pstip_fragment_shader *) fs; + /* save current */ + pstip->fs = aafs; + /* pass-through */ + pstip->driver_bind_fs_state(pstip->pipe, + (aafs ? aafs->driver_fs : NULL)); +} + + +static void +pstip_delete_fs_state(struct pipe_context *pipe, void *fs) +{ + struct pstip_stage *pstip = pstip_stage_from_pipe(pipe); + struct pstip_fragment_shader *aafs = (struct pstip_fragment_shader *) fs; + /* pass-through */ + pstip->driver_delete_fs_state(pstip->pipe, aafs->driver_fs); + FREE(aafs); +} + + +static void +pstip_bind_sampler_states(struct pipe_context *pipe, + unsigned num, void **sampler) +{ + struct pstip_stage *pstip = pstip_stage_from_pipe(pipe); + uint i; + + /* save current */ + memcpy(pstip->state.samplers, sampler, num * sizeof(void *)); + for (i = num; i < PIPE_MAX_SAMPLERS; i++) { + pstip->state.samplers[i] = NULL; + } + + pstip->num_samplers = num; + /* pass-through */ + pstip->driver_bind_sampler_states(pstip->pipe, num, sampler); +} + + +static void +pstip_set_sampler_textures(struct pipe_context *pipe, + unsigned num, struct pipe_texture **texture) +{ + struct pstip_stage *pstip = pstip_stage_from_pipe(pipe); + uint i; + + /* save current */ + for (i = 0; i < num; i++) { + pipe_texture_reference(&pstip->state.textures[i], texture[i]); + } + for (; i < PIPE_MAX_SAMPLERS; i++) { + pipe_texture_reference(&pstip->state.textures[i], NULL); + } + + pstip->num_textures = num; + + /* pass-through */ + pstip->driver_set_sampler_textures(pstip->pipe, num, texture); +} + + +static void +pstip_set_polygon_stipple(struct pipe_context *pipe, + const struct pipe_poly_stipple *stipple) +{ + struct pstip_stage *pstip = pstip_stage_from_pipe(pipe); + + /* save current */ + pstip->state.stipple = stipple; + + /* pass-through */ + pstip->driver_set_polygon_stipple(pstip->pipe, stipple); + + pstip_update_texture(pstip); +} + + +/** + * Called by drivers that want to install this polygon stipple stage + * into the draw module's pipeline. This will not be used if the + * hardware has native support for polygon stipple. + */ +boolean +draw_install_pstipple_stage(struct draw_context *draw, + struct pipe_context *pipe) +{ + struct pstip_stage *pstip; + + pipe->draw = (void *) draw; + + /* + * Create / install pgon stipple drawing / prim stage + */ + pstip = draw_pstip_stage( draw ); + if (pstip == NULL) + goto fail; + + draw->pipeline.pstipple = &pstip->stage; + + pstip->pipe = pipe; + + /* create special texture, sampler state */ + if (!pstip_create_texture(pstip)) + goto fail; + + if (!pstip_create_sampler(pstip)) + goto fail; + + /* save original driver functions */ + pstip->driver_create_fs_state = pipe->create_fs_state; + pstip->driver_bind_fs_state = pipe->bind_fs_state; + pstip->driver_delete_fs_state = pipe->delete_fs_state; + + pstip->driver_bind_sampler_states = pipe->bind_sampler_states; + pstip->driver_set_sampler_textures = pipe->set_sampler_textures; + pstip->driver_set_polygon_stipple = pipe->set_polygon_stipple; + + /* override the driver's functions */ + pipe->create_fs_state = pstip_create_fs_state; + pipe->bind_fs_state = pstip_bind_fs_state; + pipe->delete_fs_state = pstip_delete_fs_state; + + pipe->bind_sampler_states = pstip_bind_sampler_states; + pipe->set_sampler_textures = pstip_set_sampler_textures; + pipe->set_polygon_stipple = pstip_set_polygon_stipple; + + return TRUE; + + fail: + if (pstip) + pstip->stage.destroy( &pstip->stage ); + + return FALSE; +} diff --git a/src/gallium/auxiliary/draw/draw_pipe_stipple.c b/src/gallium/auxiliary/draw/draw_pipe_stipple.c new file mode 100644 index 0000000000..b65e2aa102 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe_stipple.c @@ -0,0 +1,250 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + +/* Implement line stipple by cutting lines up into smaller lines. + * There are hundreds of ways to implement line stipple, this is one + * choice that should work in all situations, requires no state + * manipulations, but with a penalty in terms of large amounts of + * generated geometry. + */ + + +#include "pipe/p_defines.h" +#include "pipe/p_shader_tokens.h" +#include "util/u_math.h" +#include "util/u_memory.h" + +#include "draw/draw_pipe.h" + + +/** Subclass of draw_stage */ +struct stipple_stage { + struct draw_stage stage; + float counter; + uint pattern; + uint factor; +}; + + +static INLINE struct stipple_stage * +stipple_stage(struct draw_stage *stage) +{ + return (struct stipple_stage *) stage; +} + + +/** + * Compute interpolated vertex attributes for 'dst' at position 't' + * between 'v0' and 'v1'. + * XXX using linear interpolation for all attribs at this time. + */ +static void +screen_interp( struct draw_context *draw, + struct vertex_header *dst, + float t, + const struct vertex_header *v0, + const struct vertex_header *v1 ) +{ + uint attr; + for (attr = 0; attr < draw->vs.num_vs_outputs; attr++) { + const float *val0 = v0->data[attr]; + const float *val1 = v1->data[attr]; + float *newv = dst->data[attr]; + uint i; + for (i = 0; i < 4; i++) { + newv[i] = val0[i] + t * (val1[i] - val0[i]); + } + } +} + + +static void +emit_segment(struct draw_stage *stage, struct prim_header *header, + float t0, float t1) +{ + struct vertex_header *v0new = dup_vert(stage, header->v[0], 0); + struct vertex_header *v1new = dup_vert(stage, header->v[1], 1); + struct prim_header newprim = *header; + + if (t0 > 0.0) { + screen_interp( stage->draw, v0new, t0, header->v[0], header->v[1] ); + newprim.v[0] = v0new; + } + + if (t1 < 1.0) { + screen_interp( stage->draw, v1new, t1, header->v[0], header->v[1] ); + newprim.v[1] = v1new; + } + + stage->next->line( stage->next, &newprim ); +} + + +static INLINE unsigned +stipple_test(int counter, ushort pattern, int factor) +{ + int b = (counter / factor) & 0xf; + return (1 << b) & pattern; +} + + +static void +stipple_line(struct draw_stage *stage, struct prim_header *header) +{ + struct stipple_stage *stipple = stipple_stage(stage); + struct vertex_header *v0 = header->v[0]; + struct vertex_header *v1 = header->v[1]; + const unsigned pos = stage->draw->vs.position_output; + const float *pos0 = v0->data[pos]; + const float *pos1 = v1->data[pos]; + float start = 0; + int state = 0; + + float x0 = pos0[0]; + float x1 = pos1[0]; + float y0 = pos0[1]; + float y1 = pos1[1]; + + float dx = x0 > x1 ? x0 - x1 : x1 - x0; + float dy = y0 > y1 ? y0 - y1 : y1 - y0; + + float length = MAX2(dx, dy); + int i; + + if (header->flags & DRAW_PIPE_RESET_STIPPLE) + stipple->counter = 0; + + + /* XXX ToDo: intead of iterating pixel-by-pixel, use a look-up table. + */ + for (i = 0; i < length; i++) { + int result = stipple_test( (int) stipple->counter+i, + (ushort) stipple->pattern, stipple->factor ); + if (result != state) { + /* changing from "off" to "on" or vice versa */ + if (state) { + if (start != i) { + /* finishing an "on" segment */ + emit_segment( stage, header, start / length, i / length ); + } + } + else { + /* starting an "on" segment */ + start = (float) i; + } + state = result; + } + } + + if (state && start < length) + emit_segment( stage, header, start / length, 1.0 ); + + stipple->counter += length; +} + + +static void +reset_stipple_counter(struct draw_stage *stage) +{ + struct stipple_stage *stipple = stipple_stage(stage); + stipple->counter = 0; + stage->next->reset_stipple_counter( stage->next ); +} + +static void +stipple_reset_point(struct draw_stage *stage, struct prim_header *header) +{ + struct stipple_stage *stipple = stipple_stage(stage); + stipple->counter = 0; + stage->next->point(stage->next, header); +} + +static void +stipple_reset_tri(struct draw_stage *stage, struct prim_header *header) +{ + struct stipple_stage *stipple = stipple_stage(stage); + stipple->counter = 0; + stage->next->tri(stage->next, header); +} + + +static void +stipple_first_line(struct draw_stage *stage, + struct prim_header *header) +{ + struct stipple_stage *stipple = stipple_stage(stage); + struct draw_context *draw = stage->draw; + + stipple->pattern = draw->rasterizer->line_stipple_pattern; + stipple->factor = draw->rasterizer->line_stipple_factor + 1; + + stage->line = stipple_line; + stage->line( stage, header ); +} + + +static void +stipple_flush(struct draw_stage *stage, unsigned flags) +{ + stage->line = stipple_first_line; + stage->next->flush( stage->next, flags ); +} + + + + +static void +stipple_destroy( struct draw_stage *stage ) +{ + draw_free_temp_verts( stage ); + FREE( stage ); +} + + +/** + * Create line stippler stage + */ +struct draw_stage *draw_stipple_stage( struct draw_context *draw ) +{ + struct stipple_stage *stipple = CALLOC_STRUCT(stipple_stage); + + draw_alloc_temp_verts( &stipple->stage, 2 ); + + stipple->stage.draw = draw; + stipple->stage.next = NULL; + stipple->stage.point = stipple_reset_point; + stipple->stage.line = stipple_first_line; + stipple->stage.tri = stipple_reset_tri; + stipple->stage.reset_stipple_counter = reset_stipple_counter; + stipple->stage.flush = stipple_flush; + stipple->stage.destroy = stipple_destroy; + + return &stipple->stage; +} diff --git a/src/gallium/auxiliary/draw/draw_pipe_twoside.c b/src/gallium/auxiliary/draw/draw_pipe_twoside.c new file mode 100644 index 0000000000..c329d92339 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe_twoside.c @@ -0,0 +1,199 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "util/u_math.h" +#include "util/u_memory.h" +#include "pipe/p_defines.h" +#include "pipe/p_shader_tokens.h" +#include "draw_vs.h" +#include "draw_pipe.h" + +struct twoside_stage { + struct draw_stage stage; + float sign; /**< +1 or -1 */ + uint attrib_front0, attrib_back0; + uint attrib_front1, attrib_back1; +}; + + +static INLINE struct twoside_stage *twoside_stage( struct draw_stage *stage ) +{ + return (struct twoside_stage *)stage; +} + + + + +/** + * Copy back color(s) to front color(s). + */ +static INLINE struct vertex_header * +copy_bfc( struct twoside_stage *twoside, + const struct vertex_header *v, + unsigned idx ) +{ + struct vertex_header *tmp = dup_vert( &twoside->stage, v, idx ); + + if (twoside->attrib_back0) { + COPY_4FV(tmp->data[twoside->attrib_front0], + tmp->data[twoside->attrib_back0]); + } + if (twoside->attrib_back1) { + COPY_4FV(tmp->data[twoside->attrib_front1], + tmp->data[twoside->attrib_back1]); + } + + return tmp; +} + + +/* Twoside tri: + */ +static void twoside_tri( struct draw_stage *stage, + struct prim_header *header ) +{ + struct twoside_stage *twoside = twoside_stage(stage); + + if (header->det * twoside->sign < 0.0) { + /* this is a back-facing triangle */ + struct prim_header tmp; + + tmp.det = header->det; + tmp.flags = header->flags; + tmp.pad = header->pad; + /* copy back attribs to front attribs */ + tmp.v[0] = copy_bfc(twoside, header->v[0], 0); + tmp.v[1] = copy_bfc(twoside, header->v[1], 1); + tmp.v[2] = copy_bfc(twoside, header->v[2], 2); + + stage->next->tri( stage->next, &tmp ); + } + else { + stage->next->tri( stage->next, header ); + } +} + + + +static void twoside_first_tri( struct draw_stage *stage, + struct prim_header *header ) +{ + struct twoside_stage *twoside = twoside_stage(stage); + const struct draw_vertex_shader *vs = stage->draw->vs.vertex_shader; + uint i; + + twoside->attrib_front0 = 0; + twoside->attrib_front1 = 0; + twoside->attrib_back0 = 0; + twoside->attrib_back1 = 0; + + /* Find which vertex shader outputs are front/back colors */ + for (i = 0; i < vs->info.num_outputs; i++) { + if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_COLOR) { + if (vs->info.output_semantic_index[i] == 0) + twoside->attrib_front0 = i; + else + twoside->attrib_front1 = i; + } + if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_BCOLOR) { + if (vs->info.output_semantic_index[i] == 0) + twoside->attrib_back0 = i; + else + twoside->attrib_back1 = i; + } + } + + if (!twoside->attrib_back0) + twoside->attrib_front0 = 0; + + if (!twoside->attrib_back1) + twoside->attrib_front1 = 0; + + /* + * We'll multiply the primitive's determinant by this sign to determine + * if the triangle is back-facing (negative). + * sign = -1 for CCW, +1 for CW + */ + twoside->sign = (stage->draw->rasterizer->front_winding == PIPE_WINDING_CCW) ? -1.0f : 1.0f; + + stage->tri = twoside_tri; + stage->tri( stage, header ); +} + + +static void twoside_flush( struct draw_stage *stage, unsigned flags ) +{ + stage->tri = twoside_first_tri; + stage->next->flush( stage->next, flags ); +} + + +static void twoside_reset_stipple_counter( struct draw_stage *stage ) +{ + stage->next->reset_stipple_counter( stage->next ); +} + + +static void twoside_destroy( struct draw_stage *stage ) +{ + draw_free_temp_verts( stage ); + FREE( stage ); +} + + +/** + * Create twoside pipeline stage. + */ +struct draw_stage *draw_twoside_stage( struct draw_context *draw ) +{ + struct twoside_stage *twoside = CALLOC_STRUCT(twoside_stage); + if (twoside == NULL) + goto fail; + + if (!draw_alloc_temp_verts( &twoside->stage, 3 )) + goto fail; + + twoside->stage.draw = draw; + twoside->stage.next = NULL; + twoside->stage.point = draw_pipe_passthrough_point; + twoside->stage.line = draw_pipe_passthrough_line; + twoside->stage.tri = twoside_first_tri; + twoside->stage.flush = twoside_flush; + twoside->stage.reset_stipple_counter = twoside_reset_stipple_counter; + twoside->stage.destroy = twoside_destroy; + + return &twoside->stage; + + fail: + if (twoside) + twoside->stage.destroy( &twoside->stage ); + + return NULL; +} diff --git a/src/gallium/auxiliary/draw/draw_pipe_unfilled.c b/src/gallium/auxiliary/draw/draw_pipe_unfilled.c new file mode 100644 index 0000000000..68835fd1a5 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe_unfilled.c @@ -0,0 +1,203 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * \brief Drawing stage for handling glPolygonMode(line/point). + * Convert triangles to points or lines as needed. + */ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "util/u_memory.h" +#include "pipe/p_defines.h" +#include "draw_private.h" +#include "draw_pipe.h" + + +struct unfilled_stage { + struct draw_stage stage; + + /** [0] = front face, [1] = back face. + * legal values: PIPE_POLYGON_MODE_FILL, PIPE_POLYGON_MODE_LINE, + * and PIPE_POLYGON_MODE_POINT, + */ + unsigned mode[2]; +}; + + +static INLINE struct unfilled_stage *unfilled_stage( struct draw_stage *stage ) +{ + return (struct unfilled_stage *)stage; +} + + + +static void point( struct draw_stage *stage, + struct vertex_header *v0 ) +{ + struct prim_header tmp; + tmp.v[0] = v0; + stage->next->point( stage->next, &tmp ); +} + +static void line( struct draw_stage *stage, + struct vertex_header *v0, + struct vertex_header *v1 ) +{ + struct prim_header tmp; + tmp.v[0] = v0; + tmp.v[1] = v1; + stage->next->line( stage->next, &tmp ); +} + + +static void points( struct draw_stage *stage, + struct prim_header *header ) +{ + struct vertex_header *v0 = header->v[0]; + struct vertex_header *v1 = header->v[1]; + struct vertex_header *v2 = header->v[2]; + + if ((header->flags & DRAW_PIPE_EDGE_FLAG_0) && v0->edgeflag) point( stage, v0 ); + if ((header->flags & DRAW_PIPE_EDGE_FLAG_1) && v1->edgeflag) point( stage, v1 ); + if ((header->flags & DRAW_PIPE_EDGE_FLAG_2) && v2->edgeflag) point( stage, v2 ); +} + + +static void lines( struct draw_stage *stage, + struct prim_header *header ) +{ + struct vertex_header *v0 = header->v[0]; + struct vertex_header *v1 = header->v[1]; + struct vertex_header *v2 = header->v[2]; + + if (header->flags & DRAW_PIPE_RESET_STIPPLE) + stage->next->reset_stipple_counter( stage->next ); + + if ((header->flags & DRAW_PIPE_EDGE_FLAG_2) && v2->edgeflag) line( stage, v2, v0 ); + if ((header->flags & DRAW_PIPE_EDGE_FLAG_0) && v0->edgeflag) line( stage, v0, v1 ); + if ((header->flags & DRAW_PIPE_EDGE_FLAG_1) && v1->edgeflag) line( stage, v1, v2 ); +} + + +/* Unfilled tri: + * + * Note edgeflags in the vertex struct is not sufficient as we will + * need to manipulate them when decomposing primitives. + * + * We currently keep the vertex edgeflag and primitive edgeflag mask + * separate until the last possible moment. + */ +static void unfilled_tri( struct draw_stage *stage, + struct prim_header *header ) +{ + struct unfilled_stage *unfilled = unfilled_stage(stage); + unsigned mode = unfilled->mode[header->det >= 0.0]; + + switch (mode) { + case PIPE_POLYGON_MODE_FILL: + stage->next->tri( stage->next, header ); + break; + case PIPE_POLYGON_MODE_LINE: + lines( stage, header ); + break; + case PIPE_POLYGON_MODE_POINT: + points( stage, header ); + break; + default: + assert(0); + } +} + + +static void unfilled_first_tri( struct draw_stage *stage, + struct prim_header *header ) +{ + struct unfilled_stage *unfilled = unfilled_stage(stage); + + unfilled->mode[0] = stage->draw->rasterizer->fill_ccw; /* front */ + unfilled->mode[1] = stage->draw->rasterizer->fill_cw; /* back */ + + stage->tri = unfilled_tri; + stage->tri( stage, header ); +} + + + +static void unfilled_flush( struct draw_stage *stage, + unsigned flags ) +{ + stage->next->flush( stage->next, flags ); + + stage->tri = unfilled_first_tri; +} + + +static void unfilled_reset_stipple_counter( struct draw_stage *stage ) +{ + stage->next->reset_stipple_counter( stage->next ); +} + + +static void unfilled_destroy( struct draw_stage *stage ) +{ + draw_free_temp_verts( stage ); + FREE( stage ); +} + + +/** + * Create unfilled triangle stage. + */ +struct draw_stage *draw_unfilled_stage( struct draw_context *draw ) +{ + struct unfilled_stage *unfilled = CALLOC_STRUCT(unfilled_stage); + if (unfilled == NULL) + goto fail; + + if (!draw_alloc_temp_verts( &unfilled->stage, 0 )) + goto fail; + + unfilled->stage.draw = draw; + unfilled->stage.next = NULL; + unfilled->stage.tmp = NULL; + unfilled->stage.point = draw_pipe_passthrough_point; + unfilled->stage.line = draw_pipe_passthrough_line; + unfilled->stage.tri = unfilled_first_tri; + unfilled->stage.flush = unfilled_flush; + unfilled->stage.reset_stipple_counter = unfilled_reset_stipple_counter; + unfilled->stage.destroy = unfilled_destroy; + + return &unfilled->stage; + + fail: + if (unfilled) + unfilled->stage.destroy( &unfilled->stage ); + + return NULL; +} diff --git a/src/gallium/auxiliary/draw/draw_pipe_util.c b/src/gallium/auxiliary/draw/draw_pipe_util.c new file mode 100644 index 0000000000..e22e5fed0c --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe_util.c @@ -0,0 +1,137 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "util/u_memory.h" +#include "draw/draw_private.h" +#include "draw/draw_pipe.h" + + + +void +draw_pipe_passthrough_point(struct draw_stage *stage, struct prim_header *header) +{ + stage->next->point(stage->next, header); +} + +void +draw_pipe_passthrough_line(struct draw_stage *stage, struct prim_header *header) +{ + stage->next->line(stage->next, header); +} + +void +draw_pipe_passthrough_tri(struct draw_stage *stage, struct prim_header *header) +{ + stage->next->tri(stage->next, header); +} + + + + + +/* This is only used for temporary verts. + */ +#define MAX_VERTEX_SIZE ((2 + PIPE_MAX_SHADER_OUTPUTS) * 4 * sizeof(float)) + + +/** + * Allocate space for temporary post-transform vertices, such as for clipping. + */ +boolean draw_alloc_temp_verts( struct draw_stage *stage, unsigned nr ) +{ + assert(!stage->tmp); + + stage->tmp = NULL; + stage->nr_tmps = nr; + + if (nr != 0) + { + unsigned i; + ubyte *store = (ubyte *) MALLOC( MAX_VERTEX_SIZE * nr ); + + if (store == NULL) + return FALSE; + + stage->tmp = (struct vertex_header **) MALLOC( sizeof(struct vertex_header *) * nr ); + if (stage->tmp == NULL) { + FREE(store); + return FALSE; + } + + for (i = 0; i < nr; i++) + stage->tmp[i] = (struct vertex_header *)(store + i * MAX_VERTEX_SIZE); + } + + return TRUE; +} + + +void draw_free_temp_verts( struct draw_stage *stage ) +{ + if (stage->tmp) { + FREE( stage->tmp[0] ); + FREE( stage->tmp ); + stage->tmp = NULL; + } +} + + +/* Reset vertex ids. This is basically a type of flush. + * + * Called only from draw_pipe_vbuf.c + */ +void draw_reset_vertex_ids(struct draw_context *draw) +{ + struct draw_stage *stage = draw->pipeline.first; + + while (stage) { + unsigned i; + + for (i = 0; i < stage->nr_tmps; i++) + stage->tmp[i]->vertex_id = UNDEFINED_VERTEX_ID; + + stage = stage->next; + } + + if (draw->pipeline.verts) + { + unsigned i; + char *verts = draw->pipeline.verts; + unsigned stride = draw->pipeline.vertex_stride; + + for (i = 0; i < draw->pipeline.vertex_count; i++) { + ((struct vertex_header *)verts)->vertex_id = UNDEFINED_VERTEX_ID; + verts += stride; + } + } +} + diff --git a/src/gallium/auxiliary/draw/draw_pipe_validate.c b/src/gallium/auxiliary/draw/draw_pipe_validate.c new file mode 100644 index 0000000000..f34c68728e --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe_validate.c @@ -0,0 +1,317 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "util/u_memory.h" +#include "pipe/p_defines.h" +#include "draw_private.h" +#include "draw_pipe.h" +#include "draw_context.h" + +static boolean points( unsigned prim ) +{ + return (prim == PIPE_PRIM_POINTS); +} + +static boolean lines( unsigned prim ) +{ + return (prim == PIPE_PRIM_LINES || + prim == PIPE_PRIM_LINE_STRIP || + prim == PIPE_PRIM_LINE_LOOP); +} + +static boolean triangles( unsigned prim ) +{ + return prim >= PIPE_PRIM_TRIANGLES; +} + +/** + * Check if we need any special pipeline stages, or whether + * prims/verts can go through untouched. Don't test for bypass + * clipping or vs modes, this function is just about the primitive + * pipeline stages. + */ +boolean +draw_need_pipeline(const struct draw_context *draw, + const struct pipe_rasterizer_state *rasterizer, + unsigned int prim ) +{ + /* Don't have to worry about triangles turning into lines/points + * and triggering the pipeline, because we have to trigger the + * pipeline *anyway* if unfilled mode is active. + */ + if (lines(prim)) + { + /* line stipple */ + if (rasterizer->line_stipple_enable && draw->pipeline.line_stipple) + return TRUE; + + /* wide lines */ + if (rasterizer->line_width > draw->pipeline.wide_line_threshold) + return TRUE; + + /* AA lines */ + if (rasterizer->line_smooth && draw->pipeline.aaline) + return TRUE; + } + + if (points(prim)) + { + /* large points */ + if (rasterizer->point_size > draw->pipeline.wide_point_threshold) + return TRUE; + + /* AA points */ + if (rasterizer->point_smooth && draw->pipeline.aapoint) + return TRUE; + + /* point sprites */ + if (rasterizer->point_sprite && draw->pipeline.point_sprite) + return TRUE; + } + + + if (triangles(prim)) + { + /* polygon stipple */ + if (rasterizer->poly_stipple_enable && draw->pipeline.pstipple) + return TRUE; + + /* unfilled polygons */ + if (rasterizer->fill_cw != PIPE_POLYGON_MODE_FILL || + rasterizer->fill_ccw != PIPE_POLYGON_MODE_FILL) + return TRUE; + + /* polygon offset */ + if (rasterizer->offset_cw || rasterizer->offset_ccw) + return TRUE; + + /* two-side lighting */ + if (rasterizer->light_twoside) + return TRUE; + } + + /* polygon cull - this is difficult - hardware can cull just fine + * most of the time (though sometimes CULL_NEITHER is unsupported. + * + * Generally this isn't a reason to require the pipeline, though. + * + if (rasterizer->cull_mode) + return TRUE; + */ + + return FALSE; +} + + + +/** + * Rebuild the rendering pipeline. + */ +static struct draw_stage *validate_pipeline( struct draw_stage *stage ) +{ + struct draw_context *draw = stage->draw; + struct draw_stage *next = draw->pipeline.rasterize; + int need_det = 0; + int precalc_flat = 0; + boolean wide_lines, wide_points; + + /* Set the validate's next stage to the rasterize stage, so that it + * can be found later if needed for flushing. + */ + stage->next = next; + + /* drawing wide lines? */ + wide_lines = (draw->rasterizer->line_width > draw->pipeline.wide_line_threshold + && !draw->rasterizer->line_smooth); + + /* drawing large points? */ + if (draw->rasterizer->point_sprite && draw->pipeline.point_sprite) + wide_points = TRUE; + else if (draw->rasterizer->point_smooth && draw->pipeline.aapoint) + wide_points = FALSE; + else if (draw->rasterizer->point_size > draw->pipeline.wide_point_threshold) + wide_points = TRUE; + else + wide_points = FALSE; + + /* + * NOTE: we build up the pipeline in end-to-start order. + * + * TODO: make the current primitive part of the state and build + * shorter pipelines for lines & points. + */ + + if (draw->rasterizer->line_smooth && draw->pipeline.aaline) { + draw->pipeline.aaline->next = next; + next = draw->pipeline.aaline; + } + + if (draw->rasterizer->point_smooth && draw->pipeline.aapoint) { + draw->pipeline.aapoint->next = next; + next = draw->pipeline.aapoint; + } + + if (wide_lines) { + draw->pipeline.wide_line->next = next; + next = draw->pipeline.wide_line; + precalc_flat = 1; + } + + if (wide_points || draw->rasterizer->point_sprite) { + draw->pipeline.wide_point->next = next; + next = draw->pipeline.wide_point; + } + + if (draw->rasterizer->line_stipple_enable && draw->pipeline.line_stipple) { + draw->pipeline.stipple->next = next; + next = draw->pipeline.stipple; + precalc_flat = 1; /* only needed for lines really */ + } + + if (draw->rasterizer->poly_stipple_enable + && draw->pipeline.pstipple) { + draw->pipeline.pstipple->next = next; + next = draw->pipeline.pstipple; + } + + if (draw->rasterizer->fill_cw != PIPE_POLYGON_MODE_FILL || + draw->rasterizer->fill_ccw != PIPE_POLYGON_MODE_FILL) { + draw->pipeline.unfilled->next = next; + next = draw->pipeline.unfilled; + precalc_flat = 1; /* only needed for triangles really */ + need_det = 1; + } + + if (draw->rasterizer->flatshade && precalc_flat) { + draw->pipeline.flatshade->next = next; + next = draw->pipeline.flatshade; + } + + if (draw->rasterizer->offset_cw || + draw->rasterizer->offset_ccw) { + draw->pipeline.offset->next = next; + next = draw->pipeline.offset; + need_det = 1; + } + + if (draw->rasterizer->light_twoside) { + draw->pipeline.twoside->next = next; + next = draw->pipeline.twoside; + need_det = 1; + } + + /* Always run the cull stage as we calculate determinant there + * also. + * + * This can actually be a win as culling out the triangles can lead + * to less work emitting vertices, smaller vertex buffers, etc. + * It's difficult to say whether this will be true in general. + */ + if (need_det || draw->rasterizer->cull_mode) { + draw->pipeline.cull->next = next; + next = draw->pipeline.cull; + } + + /* Clip stage + */ + if (!draw->bypass_clipping) + { + draw->pipeline.clip->next = next; + next = draw->pipeline.clip; + } + + + draw->pipeline.first = next; + return next; +} + +static void validate_tri( struct draw_stage *stage, + struct prim_header *header ) +{ + struct draw_stage *pipeline = validate_pipeline( stage ); + pipeline->tri( pipeline, header ); +} + +static void validate_line( struct draw_stage *stage, + struct prim_header *header ) +{ + struct draw_stage *pipeline = validate_pipeline( stage ); + pipeline->line( pipeline, header ); +} + +static void validate_point( struct draw_stage *stage, + struct prim_header *header ) +{ + struct draw_stage *pipeline = validate_pipeline( stage ); + pipeline->point( pipeline, header ); +} + +static void validate_reset_stipple_counter( struct draw_stage *stage ) +{ + struct draw_stage *pipeline = validate_pipeline( stage ); + pipeline->reset_stipple_counter( pipeline ); +} + +static void validate_flush( struct draw_stage *stage, + unsigned flags ) +{ + /* May need to pass a backend flush on to the rasterize stage. + */ + if (stage->next) + stage->next->flush( stage->next, flags ); +} + + +static void validate_destroy( struct draw_stage *stage ) +{ + FREE( stage ); +} + + +/** + * Create validate pipeline stage. + */ +struct draw_stage *draw_validate_stage( struct draw_context *draw ) +{ + struct draw_stage *stage = CALLOC_STRUCT(draw_stage); + if (stage == NULL) + return NULL; + + stage->draw = draw; + stage->next = NULL; + stage->point = validate_point; + stage->line = validate_line; + stage->tri = validate_tri; + stage->flush = validate_flush; + stage->reset_stipple_counter = validate_reset_stipple_counter; + stage->destroy = validate_destroy; + + return stage; +} diff --git a/src/gallium/auxiliary/draw/draw_pipe_vbuf.c b/src/gallium/auxiliary/draw/draw_pipe_vbuf.c new file mode 100644 index 0000000000..c0cf4269db --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe_vbuf.c @@ -0,0 +1,494 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * \file + * Vertex buffer drawing stage. + * + * \author José Fonseca <jrfonsec@tungstengraphics.com> + * \author Keith Whitwell <keith@tungstengraphics.com> + */ + + +#include "pipe/p_debug.h" +#include "util/u_math.h" +#include "util/u_memory.h" + +#include "draw_vbuf.h" +#include "draw_private.h" +#include "draw_vertex.h" +#include "draw_pipe.h" +#include "translate/translate.h" +#include "translate/translate_cache.h" + + +/** + * Vertex buffer emit stage. + */ +struct vbuf_stage { + struct draw_stage stage; /**< This must be first (base class) */ + + struct vbuf_render *render; + + const struct vertex_info *vinfo; + + /** Vertex size in bytes */ + unsigned vertex_size; + + struct translate *translate; + + /* FIXME: we have no guarantee that 'unsigned' is 32bit */ + + /** Vertices in hardware format */ + unsigned *vertices; + unsigned *vertex_ptr; + unsigned max_vertices; + unsigned nr_vertices; + + /** Indices */ + ushort *indices; + unsigned max_indices; + unsigned nr_indices; + + /* Cache point size somewhere it's address won't change: + */ + float point_size; + + struct translate_cache *cache; +}; + + +/** + * Basically a cast wrapper. + */ +static INLINE struct vbuf_stage * +vbuf_stage( struct draw_stage *stage ) +{ + assert(stage); + return (struct vbuf_stage *)stage; +} + + +static void vbuf_flush_indices( struct vbuf_stage *vbuf ); +static void vbuf_flush_vertices( struct vbuf_stage *vbuf ); +static void vbuf_alloc_vertices( struct vbuf_stage *vbuf ); + + +static INLINE boolean +overflow( void *map, void *ptr, unsigned bytes, unsigned bufsz ) +{ + unsigned long used = (unsigned long) ((char *)ptr - (char *)map); + return (used + bytes) > bufsz; +} + + +static INLINE void +check_space( struct vbuf_stage *vbuf, unsigned nr ) +{ + if (vbuf->nr_vertices + nr > vbuf->max_vertices ) { + vbuf_flush_vertices(vbuf); + vbuf_alloc_vertices(vbuf); + } + + if (vbuf->nr_indices + nr > vbuf->max_indices ) + vbuf_flush_indices(vbuf); +} + + + + +/** + * Extract the needed fields from post-transformed vertex and emit + * a hardware(driver) vertex. + * Recall that the vertices are constructed by the 'draw' module and + * have a couple of slots at the beginning (1-dword header, 4-dword + * clip pos) that we ignore here. We only use the vertex->data[] fields. + */ +static INLINE ushort +emit_vertex( struct vbuf_stage *vbuf, + struct vertex_header *vertex ) +{ + if(vertex->vertex_id == UNDEFINED_VERTEX_ID) { + /* Hmm - vertices are emitted one at a time - better make sure + * set_buffer is efficient. Consider a special one-shot mode for + * translate. + */ + /* Note: we really do want data[0] here, not data[pos]: + */ + vbuf->translate->set_buffer(vbuf->translate, 0, vertex->data[0], 0); + vbuf->translate->run(vbuf->translate, 0, 1, vbuf->vertex_ptr); + + if (0) draw_dump_emitted_vertex(vbuf->vinfo, (uint8_t *)vbuf->vertex_ptr); + + vbuf->vertex_ptr += vbuf->vertex_size/4; + vertex->vertex_id = vbuf->nr_vertices++; + } + + return (ushort)vertex->vertex_id; +} + + +static void +vbuf_tri( struct draw_stage *stage, + struct prim_header *prim ) +{ + struct vbuf_stage *vbuf = vbuf_stage( stage ); + unsigned i; + + check_space( vbuf, 3 ); + + for (i = 0; i < 3; i++) { + vbuf->indices[vbuf->nr_indices++] = emit_vertex( vbuf, prim->v[i] ); + } +} + + +static void +vbuf_line( struct draw_stage *stage, + struct prim_header *prim ) +{ + struct vbuf_stage *vbuf = vbuf_stage( stage ); + unsigned i; + + check_space( vbuf, 2 ); + + for (i = 0; i < 2; i++) { + vbuf->indices[vbuf->nr_indices++] = emit_vertex( vbuf, prim->v[i] ); + } +} + + +static void +vbuf_point( struct draw_stage *stage, + struct prim_header *prim ) +{ + struct vbuf_stage *vbuf = vbuf_stage( stage ); + + check_space( vbuf, 1 ); + + vbuf->indices[vbuf->nr_indices++] = emit_vertex( vbuf, prim->v[0] ); +} + + + + +/** + * Set the prim type for subsequent vertices. + * This may result in a new vertex size. The existing vbuffer (if any) + * will be flushed if needed and a new one allocated. + */ +static void +vbuf_set_prim( struct vbuf_stage *vbuf, uint prim ) +{ + struct translate_key hw_key; + unsigned dst_offset; + unsigned i; + + vbuf->render->set_primitive(vbuf->render, prim); + + /* Must do this after set_primitive() above: + * + * XXX: need some state managment to track when this needs to be + * recalculated. The driver should tell us whether there was a + * state change. + */ + vbuf->vinfo = vbuf->render->get_vertex_info(vbuf->render); + + if (vbuf->vertex_size != vbuf->vinfo->size * sizeof(float)) { + vbuf_flush_vertices(vbuf); + vbuf->vertex_size = vbuf->vinfo->size * sizeof(float); + } + + /* Translate from pipeline vertices to hw vertices. + */ + dst_offset = 0; + + for (i = 0; i < vbuf->vinfo->num_attribs; i++) { + unsigned emit_sz = 0; + unsigned src_buffer = 0; + unsigned output_format; + unsigned src_offset = (vbuf->vinfo->src_index[i] * 4 * sizeof(float) ); + + switch (vbuf->vinfo->emit[i]) { + case EMIT_4F: + output_format = PIPE_FORMAT_R32G32B32A32_FLOAT; + emit_sz = 4 * sizeof(float); + break; + case EMIT_3F: + output_format = PIPE_FORMAT_R32G32B32_FLOAT; + emit_sz = 3 * sizeof(float); + break; + case EMIT_2F: + output_format = PIPE_FORMAT_R32G32_FLOAT; + emit_sz = 2 * sizeof(float); + break; + case EMIT_1F: + output_format = PIPE_FORMAT_R32_FLOAT; + emit_sz = 1 * sizeof(float); + break; + case EMIT_1F_PSIZE: + output_format = PIPE_FORMAT_R32_FLOAT; + emit_sz = 1 * sizeof(float); + src_buffer = 1; + src_offset = 0; + break; + case EMIT_4UB: + output_format = PIPE_FORMAT_B8G8R8A8_UNORM; + emit_sz = 4 * sizeof(ubyte); + break; + default: + assert(0); + output_format = PIPE_FORMAT_NONE; + emit_sz = 0; + break; + } + + hw_key.element[i].input_format = PIPE_FORMAT_R32G32B32A32_FLOAT; + hw_key.element[i].input_buffer = src_buffer; + hw_key.element[i].input_offset = src_offset; + hw_key.element[i].output_format = output_format; + hw_key.element[i].output_offset = dst_offset; + + dst_offset += emit_sz; + } + + hw_key.nr_elements = vbuf->vinfo->num_attribs; + hw_key.output_stride = vbuf->vinfo->size * 4; + + /* Don't bother with caching at this stage: + */ + if (!vbuf->translate || + translate_key_compare(&vbuf->translate->key, &hw_key) != 0) + { + translate_key_sanitize(&hw_key); + vbuf->translate = translate_cache_find(vbuf->cache, &hw_key); + + vbuf->translate->set_buffer(vbuf->translate, 1, &vbuf->point_size, 0); + } + + vbuf->point_size = vbuf->stage.draw->rasterizer->point_size; + + /* Allocate new buffer? + */ + if (!vbuf->vertices) + vbuf_alloc_vertices(vbuf); +} + + +static void +vbuf_first_tri( struct draw_stage *stage, + struct prim_header *prim ) +{ + struct vbuf_stage *vbuf = vbuf_stage( stage ); + + vbuf_flush_indices( vbuf ); + stage->tri = vbuf_tri; + vbuf_set_prim(vbuf, PIPE_PRIM_TRIANGLES); + stage->tri( stage, prim ); +} + + +static void +vbuf_first_line( struct draw_stage *stage, + struct prim_header *prim ) +{ + struct vbuf_stage *vbuf = vbuf_stage( stage ); + + vbuf_flush_indices( vbuf ); + stage->line = vbuf_line; + vbuf_set_prim(vbuf, PIPE_PRIM_LINES); + stage->line( stage, prim ); +} + + +static void +vbuf_first_point( struct draw_stage *stage, + struct prim_header *prim ) +{ + struct vbuf_stage *vbuf = vbuf_stage( stage ); + + vbuf_flush_indices( vbuf ); + stage->point = vbuf_point; + vbuf_set_prim(vbuf, PIPE_PRIM_POINTS); + stage->point( stage, prim ); +} + + +static void +vbuf_flush_indices( struct vbuf_stage *vbuf ) +{ + if(!vbuf->nr_indices) + return; + + assert((uint) (vbuf->vertex_ptr - vbuf->vertices) == + vbuf->nr_vertices * vbuf->vertex_size / sizeof(unsigned)); + + vbuf->render->draw(vbuf->render, vbuf->indices, vbuf->nr_indices); + + vbuf->nr_indices = 0; +} + + +/** + * Flush existing vertex buffer and allocate a new one. + * + * XXX: We separate flush-on-index-full and flush-on-vb-full, but may + * raise issues uploading vertices if the hardware wants to flush when + * we flush. + */ +static void +vbuf_flush_vertices( struct vbuf_stage *vbuf ) +{ + if(vbuf->vertices) { + vbuf_flush_indices(vbuf); + + /* Reset temporary vertices ids */ + if(vbuf->nr_vertices) + draw_reset_vertex_ids( vbuf->stage.draw ); + + /* Free the vertex buffer */ + vbuf->render->release_vertices(vbuf->render, + vbuf->vertices, + vbuf->vertex_size, + vbuf->nr_vertices); + vbuf->max_vertices = vbuf->nr_vertices = 0; + vbuf->vertex_ptr = vbuf->vertices = NULL; + + } +} + + +static void +vbuf_alloc_vertices( struct vbuf_stage *vbuf ) +{ + assert(!vbuf->nr_indices); + assert(!vbuf->vertices); + + /* Allocate a new vertex buffer */ + vbuf->max_vertices = vbuf->render->max_vertex_buffer_bytes / vbuf->vertex_size; + + /* even number */ + vbuf->max_vertices = vbuf->max_vertices & ~1; + + /* Must always succeed -- driver gives us a + * 'max_vertex_buffer_bytes' which it guarantees it can allocate, + * and it will flush itself if necessary to do so. If this does + * fail, we are basically without usable hardware. + */ + vbuf->vertices = (uint *) vbuf->render->allocate_vertices(vbuf->render, + (ushort) vbuf->vertex_size, + (ushort) vbuf->max_vertices); + vbuf->vertex_ptr = vbuf->vertices; +} + + + +static void +vbuf_flush( struct draw_stage *stage, unsigned flags ) +{ + struct vbuf_stage *vbuf = vbuf_stage( stage ); + + vbuf_flush_indices( vbuf ); + + stage->point = vbuf_first_point; + stage->line = vbuf_first_line; + stage->tri = vbuf_first_tri; + + if (flags & DRAW_FLUSH_BACKEND) + vbuf_flush_vertices( vbuf ); +} + + +static void +vbuf_reset_stipple_counter( struct draw_stage *stage ) +{ + /* XXX: Need to do something here for hardware with linestipple. + */ + (void) stage; +} + + +static void vbuf_destroy( struct draw_stage *stage ) +{ + struct vbuf_stage *vbuf = vbuf_stage( stage ); + + if(vbuf->indices) + align_free( vbuf->indices ); + + if (vbuf->render) + vbuf->render->destroy( vbuf->render ); + + if (vbuf->cache) + translate_cache_destroy(vbuf->cache); + + FREE( stage ); +} + + +/** + * Create a new primitive vbuf/render stage. + */ +struct draw_stage *draw_vbuf_stage( struct draw_context *draw, + struct vbuf_render *render ) +{ + struct vbuf_stage *vbuf = CALLOC_STRUCT(vbuf_stage); + if (vbuf == NULL) + goto fail; + + vbuf->stage.draw = draw; + vbuf->stage.point = vbuf_first_point; + vbuf->stage.line = vbuf_first_line; + vbuf->stage.tri = vbuf_first_tri; + vbuf->stage.flush = vbuf_flush; + vbuf->stage.reset_stipple_counter = vbuf_reset_stipple_counter; + vbuf->stage.destroy = vbuf_destroy; + + vbuf->render = render; + vbuf->max_indices = MAX2(render->max_indices, UNDEFINED_VERTEX_ID-1); + + vbuf->indices = (ushort *) align_malloc( vbuf->max_indices * + sizeof(vbuf->indices[0]), + 16 ); + if (!vbuf->indices) + goto fail; + + vbuf->cache = translate_cache_create(); + if (!vbuf->cache) + goto fail; + + + vbuf->vertices = NULL; + vbuf->vertex_ptr = vbuf->vertices; + + return &vbuf->stage; + + fail: + if (vbuf) + vbuf_destroy(&vbuf->stage); + + return NULL; +} diff --git a/src/gallium/auxiliary/draw/draw_pipe_wide_line.c b/src/gallium/auxiliary/draw/draw_pipe_wide_line.c new file mode 100644 index 0000000000..184e363594 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe_wide_line.c @@ -0,0 +1,180 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "pipe/p_defines.h" +#include "pipe/p_shader_tokens.h" +#include "util/u_math.h" +#include "util/u_memory.h" +#include "draw_private.h" +#include "draw_pipe.h" + + +struct wideline_stage { + struct draw_stage stage; + + float half_line_width; +}; + + + +static INLINE struct wideline_stage *wideline_stage( struct draw_stage *stage ) +{ + return (struct wideline_stage *)stage; +} + + + +/** + * Draw a wide line by drawing a quad (two triangles). + * XXX need to disable polygon stipple. + */ +static void wideline_line( struct draw_stage *stage, + struct prim_header *header ) +{ + /*const struct wideline_stage *wide = wideline_stage(stage);*/ + const unsigned pos = stage->draw->vs.position_output; + const float half_width = 0.5f * stage->draw->rasterizer->line_width; + + struct prim_header tri; + + struct vertex_header *v0 = dup_vert(stage, header->v[0], 0); + struct vertex_header *v1 = dup_vert(stage, header->v[0], 1); + struct vertex_header *v2 = dup_vert(stage, header->v[1], 2); + struct vertex_header *v3 = dup_vert(stage, header->v[1], 3); + + float *pos0 = v0->data[pos]; + float *pos1 = v1->data[pos]; + float *pos2 = v2->data[pos]; + float *pos3 = v3->data[pos]; + + const float dx = fabsf(pos0[0] - pos2[0]); + const float dy = fabsf(pos0[1] - pos2[1]); + + /* small tweak to meet GL specification */ + const float bias = 0.125f; + + /* + * Draw wide line as a quad (two tris) by "stretching" the line along + * X or Y. + * We need to tweak coords in several ways to be conformant here. + */ + + if (dx > dy) { + /* x-major line */ + pos0[1] = pos0[1] - half_width - bias; + pos1[1] = pos1[1] + half_width - bias; + pos2[1] = pos2[1] - half_width - bias; + pos3[1] = pos3[1] + half_width - bias; + if (pos0[0] < pos2[0]) { + /* left to right line */ + pos0[0] -= 0.5f; + pos1[0] -= 0.5f; + pos2[0] -= 0.5f; + pos3[0] -= 0.5f; + } + else { + /* right to left line */ + pos0[0] += 0.5f; + pos1[0] += 0.5f; + pos2[0] += 0.5f; + pos3[0] += 0.5f; + } + } + else { + /* y-major line */ + pos0[0] = pos0[0] - half_width + bias; + pos1[0] = pos1[0] + half_width + bias; + pos2[0] = pos2[0] - half_width + bias; + pos3[0] = pos3[0] + half_width + bias; + if (pos0[1] < pos2[1]) { + /* top to bottom line */ + pos0[1] -= 0.5f; + pos1[1] -= 0.5f; + pos2[1] -= 0.5f; + pos3[1] -= 0.5f; + } + else { + /* bottom to top line */ + pos0[1] += 0.5f; + pos1[1] += 0.5f; + pos2[1] += 0.5f; + pos3[1] += 0.5f; + } + } + + tri.det = header->det; /* only the sign matters */ + tri.v[0] = v0; + tri.v[1] = v2; + tri.v[2] = v3; + stage->next->tri( stage->next, &tri ); + + tri.v[0] = v0; + tri.v[1] = v3; + tri.v[2] = v1; + stage->next->tri( stage->next, &tri ); +} + + +static void wideline_flush( struct draw_stage *stage, unsigned flags ) +{ + stage->next->flush( stage->next, flags ); +} + + +static void wideline_reset_stipple_counter( struct draw_stage *stage ) +{ + stage->next->reset_stipple_counter( stage->next ); +} + + +static void wideline_destroy( struct draw_stage *stage ) +{ + draw_free_temp_verts( stage ); + FREE( stage ); +} + + +struct draw_stage *draw_wide_line_stage( struct draw_context *draw ) +{ + struct wideline_stage *wide = CALLOC_STRUCT(wideline_stage); + + draw_alloc_temp_verts( &wide->stage, 4 ); + + wide->stage.draw = draw; + wide->stage.next = NULL; + wide->stage.point = draw_pipe_passthrough_point; + wide->stage.line = wideline_line; + wide->stage.tri = draw_pipe_passthrough_tri; + wide->stage.flush = wideline_flush; + wide->stage.reset_stipple_counter = wideline_reset_stipple_counter; + wide->stage.destroy = wideline_destroy; + + return &wide->stage; +} diff --git a/src/gallium/auxiliary/draw/draw_pipe_wide_point.c b/src/gallium/auxiliary/draw/draw_pipe_wide_point.c new file mode 100644 index 0000000000..4f1326053d --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe_wide_point.c @@ -0,0 +1,297 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "util/u_math.h" +#include "util/u_memory.h" +#include "pipe/p_defines.h" +#include "pipe/p_shader_tokens.h" +#include "draw_vs.h" +#include "draw_pipe.h" + + +struct widepoint_stage { + struct draw_stage stage; + + float half_point_size; + float point_size_min; + float point_size_max; + + float xbias; + float ybias; + + uint texcoord_slot[PIPE_MAX_SHADER_OUTPUTS]; + uint texcoord_mode[PIPE_MAX_SHADER_OUTPUTS]; + uint num_texcoords; + + int psize_slot; + + int point_coord_fs_input; /**< input for pointcoord (and fog) */ +}; + + + +static INLINE struct widepoint_stage * +widepoint_stage( struct draw_stage *stage ) +{ + return (struct widepoint_stage *)stage; +} + + + + +/** + * Set the vertex texcoords for sprite mode. + * Coords may be left untouched or set to a right-side-up or upside-down + * orientation. + */ +static void set_texcoords(const struct widepoint_stage *wide, + struct vertex_header *v, const float tc[4]) +{ + uint i; + for (i = 0; i < wide->num_texcoords; i++) { + if (wide->texcoord_mode[i] != PIPE_SPRITE_COORD_NONE) { + uint j = wide->texcoord_slot[i]; + v->data[j][0] = tc[0]; + if (wide->texcoord_mode[i] == PIPE_SPRITE_COORD_LOWER_LEFT) + v->data[j][1] = 1.0f - tc[1]; + else + v->data[j][1] = tc[1]; + v->data[j][2] = tc[2]; + v->data[j][3] = tc[3]; + } + } + + if (wide->point_coord_fs_input >= 0) { + /* put gl_PointCoord into extra vertex output's zw components */ + uint k = wide->stage.draw->extra_vp_outputs.slot; + v->data[k][2] = tc[0]; + v->data[k][3] = tc[1]; + } +} + + +/* If there are lots of sprite points (and why wouldn't there be?) it + * would probably be more sensible to change hardware setup to + * optimize this rather than doing the whole thing in software like + * this. + */ +static void widepoint_point( struct draw_stage *stage, + struct prim_header *header ) +{ + const struct widepoint_stage *wide = widepoint_stage(stage); + const unsigned pos = stage->draw->vs.position_output; + const boolean sprite = (boolean) stage->draw->rasterizer->point_sprite; + float half_size; + float left_adj, right_adj, bot_adj, top_adj; + + struct prim_header tri; + + /* four dups of original vertex */ + struct vertex_header *v0 = dup_vert(stage, header->v[0], 0); + struct vertex_header *v1 = dup_vert(stage, header->v[0], 1); + struct vertex_header *v2 = dup_vert(stage, header->v[0], 2); + struct vertex_header *v3 = dup_vert(stage, header->v[0], 3); + + float *pos0 = v0->data[pos]; + float *pos1 = v1->data[pos]; + float *pos2 = v2->data[pos]; + float *pos3 = v3->data[pos]; + + /* point size is either per-vertex or fixed size */ + if (wide->psize_slot >= 0) { + half_size = header->v[0]->data[wide->psize_slot][0]; + + /* XXX: temporary -- do this in the vertex shader?? + */ + half_size = CLAMP(half_size, + wide->point_size_min, + wide->point_size_max); + + half_size *= 0.5f; + } + else { + half_size = wide->half_point_size; + } + + left_adj = -half_size + wide->xbias; + right_adj = half_size + wide->xbias; + bot_adj = half_size + wide->ybias; + top_adj = -half_size + wide->ybias; + + pos0[0] += left_adj; + pos0[1] += top_adj; + + pos1[0] += left_adj; + pos1[1] += bot_adj; + + pos2[0] += right_adj; + pos2[1] += top_adj; + + pos3[0] += right_adj; + pos3[1] += bot_adj; + + if (sprite) { + static const float tex00[4] = { 0, 0, 0, 1 }; + static const float tex01[4] = { 0, 1, 0, 1 }; + static const float tex11[4] = { 1, 1, 0, 1 }; + static const float tex10[4] = { 1, 0, 0, 1 }; + set_texcoords( wide, v0, tex00 ); + set_texcoords( wide, v1, tex01 ); + set_texcoords( wide, v2, tex10 ); + set_texcoords( wide, v3, tex11 ); + } + + tri.det = header->det; /* only the sign matters */ + tri.v[0] = v0; + tri.v[1] = v2; + tri.v[2] = v3; + stage->next->tri( stage->next, &tri ); + + tri.v[0] = v0; + tri.v[1] = v3; + tri.v[2] = v1; + stage->next->tri( stage->next, &tri ); +} + + +static void widepoint_first_point( struct draw_stage *stage, + struct prim_header *header ) +{ + struct widepoint_stage *wide = widepoint_stage(stage); + struct draw_context *draw = stage->draw; + + wide->half_point_size = 0.5f * draw->rasterizer->point_size; + wide->point_size_min = draw->rasterizer->point_size_min; + wide->point_size_max = draw->rasterizer->point_size_max; + wide->xbias = 0.0; + wide->ybias = 0.0; + + if (draw->rasterizer->gl_rasterization_rules) { + wide->xbias = 0.125; + } + + /* XXX we won't know the real size if it's computed by the vertex shader! */ + if ((draw->rasterizer->point_size > draw->pipeline.wide_point_threshold) || + (draw->rasterizer->point_sprite && draw->pipeline.point_sprite)) { + stage->point = widepoint_point; + } + else { + stage->point = draw_pipe_passthrough_point; + } + + if (draw->rasterizer->point_sprite) { + /* find vertex shader texcoord outputs */ + const struct draw_vertex_shader *vs = draw->vs.vertex_shader; + uint i, j = 0; + for (i = 0; i < vs->info.num_outputs; i++) { + if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_GENERIC) { + wide->texcoord_slot[j] = i; + wide->texcoord_mode[j] = draw->rasterizer->sprite_coord_mode[j]; + j++; + } + } + wide->num_texcoords = j; + + /* find fragment shader PointCoord/Fog input */ + wide->point_coord_fs_input = 0; /* XXX fix this! */ + + /* setup extra vp output */ + draw->extra_vp_outputs.semantic_name = TGSI_SEMANTIC_FOG; + draw->extra_vp_outputs.semantic_index = 0; + draw->extra_vp_outputs.slot = draw->vs.num_vs_outputs; + } + else { + wide->point_coord_fs_input = -1; + draw->extra_vp_outputs.slot = 0; + } + + wide->psize_slot = -1; + if (draw->rasterizer->point_size_per_vertex) { + /* find PSIZ vertex output */ + const struct draw_vertex_shader *vs = draw->vs.vertex_shader; + uint i; + for (i = 0; i < vs->info.num_outputs; i++) { + if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_PSIZE) { + wide->psize_slot = i; + break; + } + } + } + + stage->point( stage, header ); +} + + +static void widepoint_flush( struct draw_stage *stage, unsigned flags ) +{ + stage->point = widepoint_first_point; + stage->next->flush( stage->next, flags ); +} + + +static void widepoint_reset_stipple_counter( struct draw_stage *stage ) +{ + stage->next->reset_stipple_counter( stage->next ); +} + + +static void widepoint_destroy( struct draw_stage *stage ) +{ + draw_free_temp_verts( stage ); + FREE( stage ); +} + + +struct draw_stage *draw_wide_point_stage( struct draw_context *draw ) +{ + struct widepoint_stage *wide = CALLOC_STRUCT(widepoint_stage); + if (wide == NULL) + goto fail; + + if (!draw_alloc_temp_verts( &wide->stage, 4 )) + goto fail; + + wide->stage.draw = draw; + wide->stage.next = NULL; + wide->stage.point = widepoint_first_point; + wide->stage.line = draw_pipe_passthrough_line; + wide->stage.tri = draw_pipe_passthrough_tri; + wide->stage.flush = widepoint_flush; + wide->stage.reset_stipple_counter = widepoint_reset_stipple_counter; + wide->stage.destroy = widepoint_destroy; + + return &wide->stage; + + fail: + if (wide) + wide->stage.destroy( &wide->stage ); + + return NULL; +} diff --git a/src/gallium/auxiliary/draw/draw_private.h b/src/gallium/auxiliary/draw/draw_private.h new file mode 100644 index 0000000000..626a2e3e30 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_private.h @@ -0,0 +1,310 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * Private data structures, etc for the draw module. + */ + + +/** + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + * Brian Paul + */ + + +#ifndef DRAW_PRIVATE_H +#define DRAW_PRIVATE_H + + +#include "pipe/p_state.h" +#include "pipe/p_defines.h" + +#include "tgsi/tgsi_exec.h" +#include "tgsi/tgsi_scan.h" + + +struct pipe_context; +struct gallivm_prog; +struct gallivm_cpu_engine; +struct draw_vertex_shader; +struct draw_context; +struct draw_stage; +struct vbuf_render; + + +/** + * Basic vertex info. + * Carry some useful information around with the vertices in the prim pipe. + */ +struct vertex_header { + unsigned clipmask:12; + unsigned edgeflag:1; + unsigned pad:3; + unsigned vertex_id:16; + + float clip[4]; + + /* This will probably become float (*data)[4] soon: + */ + float data[][4]; +}; + +/* NOTE: It should match vertex_id size above */ +#define UNDEFINED_VERTEX_ID 0xffff + + +/** + * Private context for the drawing module. + */ +struct draw_context +{ + /** Drawing/primitive pipeline stages */ + struct { + struct draw_stage *first; /**< one of the following */ + + struct draw_stage *validate; + + /* stages (in logical order) */ + struct draw_stage *flatshade; + struct draw_stage *clip; + struct draw_stage *cull; + struct draw_stage *twoside; + struct draw_stage *offset; + struct draw_stage *unfilled; + struct draw_stage *stipple; + struct draw_stage *aapoint; + struct draw_stage *aaline; + struct draw_stage *pstipple; + struct draw_stage *wide_line; + struct draw_stage *wide_point; + struct draw_stage *rasterize; + + float wide_point_threshold; /**< convert pnts to tris if larger than this */ + float wide_line_threshold; /**< convert lines to tris if wider than this */ + boolean line_stipple; /**< do line stipple? */ + boolean point_sprite; /**< convert points to quads for sprites? */ + + /* Temporary storage while the pipeline is being run: + */ + char *verts; + unsigned vertex_stride; + unsigned vertex_count; + } pipeline; + + + struct vbuf_render *render; + + /* Support prototype passthrough path: + */ + struct { + struct { + struct draw_pt_middle_end *fetch_emit; + struct draw_pt_middle_end *fetch_shade_emit; + struct draw_pt_middle_end *general; + } middle; + + struct { + struct draw_pt_front_end *vcache; + struct draw_pt_front_end *varray; + } front; + + struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS]; + unsigned nr_vertex_buffers; + + struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS]; + unsigned nr_vertex_elements; + + /* user-space vertex data, buffers */ + struct { + const unsigned *edgeflag; + + /** vertex element/index buffer (ex: glDrawElements) */ + const void *elts; + /** bytes per index (0, 1, 2 or 4) */ + unsigned eltSize; + unsigned min_index; + unsigned max_index; + + /** vertex arrays */ + const void *vbuffer[PIPE_MAX_ATTRIBS]; + + /** constant buffer (for vertex shader) */ + const void *constants; + } user; + + boolean test_fse; /* enable FSE even though its not correct (eg for softpipe) */ + boolean no_fse; /* disable FSE even when it is correct */ + } pt; + + struct { + boolean bypass_clipping; + } driver; + + boolean flushing; /**< debugging/sanity */ + boolean suspend_flushing; /**< internally set */ + boolean bypass_clipping; /**< set if either api or driver bypass_clipping true */ + + /* pipe state that we need: */ + const struct pipe_rasterizer_state *rasterizer; + struct pipe_viewport_state viewport; + boolean identity_viewport; + + struct { + struct draw_vertex_shader *vertex_shader; + uint num_vs_outputs; /**< convenience, from vertex_shader */ + uint position_output; + + /** TGSI program interpreter runtime state */ + struct tgsi_exec_machine machine; + + /* This (and the tgsi_exec_machine struct) probably need to be moved somewhere private. + */ + struct gallivm_cpu_engine *engine; + + /* Here's another one: + */ + struct aos_machine *aos_machine; + + + const float (*aligned_constants)[4]; + + float (*aligned_constant_storage)[4]; + unsigned const_storage_size; + + + struct translate *fetch; + struct translate_cache *fetch_cache; + struct translate *emit; + struct translate_cache *emit_cache; + } vs; + + /* Clip derived state: + */ + float plane[12][4]; + unsigned nr_planes; + + /* If a prim stage introduces new vertex attributes, they'll be stored here + */ + struct { + uint semantic_name; + uint semantic_index; + int slot; + } extra_vp_outputs; + + unsigned reduced_prim; + + void *driver_private; +}; + + +/******************************************************************************* + * Vertex shader code: + */ +boolean draw_vs_init( struct draw_context *draw ); +void draw_vs_destroy( struct draw_context *draw ); + +void draw_vs_set_viewport( struct draw_context *, + const struct pipe_viewport_state * ); + +void draw_vs_set_constants( struct draw_context *, + const float (*constants)[4], + unsigned size ); + + + + +/******************************************************************************* + * Vertex processing (was passthrough) code: + */ +boolean draw_pt_init( struct draw_context *draw ); +void draw_pt_destroy( struct draw_context *draw ); +void draw_pt_reset_vertex_ids( struct draw_context *draw ); + + +/******************************************************************************* + * Primitive processing (pipeline) code: + */ + +boolean draw_pipeline_init( struct draw_context *draw ); +void draw_pipeline_destroy( struct draw_context *draw ); + + + + + +/* We use the top few bits in the elts[] parameter to convey a little + * API information. This limits the number of vertices we can address + * to only 4096 -- if that becomes a problem, we can switch to 32-bit + * draw indices. + * + * These flags expected at first vertex of lines & triangles when + * unfilled and/or line stipple modes are operational. + */ +#define DRAW_PIPE_MAX_VERTICES (0x1<<12) +#define DRAW_PIPE_EDGE_FLAG_0 (0x1<<12) +#define DRAW_PIPE_EDGE_FLAG_1 (0x2<<12) +#define DRAW_PIPE_EDGE_FLAG_2 (0x4<<12) +#define DRAW_PIPE_EDGE_FLAG_ALL (0x7<<12) +#define DRAW_PIPE_RESET_STIPPLE (0x8<<12) +#define DRAW_PIPE_FLAG_MASK (0xf<<12) + +void draw_pipeline_run( struct draw_context *draw, + unsigned prim, + struct vertex_header *vertices, + unsigned vertex_count, + unsigned stride, + const ushort *elts, + unsigned count ); + +void draw_pipeline_run_linear( struct draw_context *draw, + unsigned prim, + struct vertex_header *vertices, + unsigned count, + unsigned stride ); + + + +void draw_pipeline_flush( struct draw_context *draw, + unsigned flags ); + + + +/******************************************************************************* + * Flushing + */ + +#define DRAW_FLUSH_STATE_CHANGE 0x8 +#define DRAW_FLUSH_BACKEND 0x10 + + +void draw_do_flush( struct draw_context *draw, unsigned flags ); + + + + +#endif /* DRAW_PRIVATE_H */ diff --git a/src/gallium/auxiliary/draw/draw_pt.c b/src/gallium/auxiliary/draw/draw_pt.c new file mode 100644 index 0000000000..669c11c993 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt.c @@ -0,0 +1,209 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "draw/draw_context.h" +#include "draw/draw_private.h" +#include "draw/draw_pt.h" + +static unsigned trim( unsigned count, unsigned first, unsigned incr ) +{ + if (count < first) + return 0; + return count - (count - first) % incr; +} + + + +/* Overall we split things into: + * - frontend -- prepare fetch_elts, draw_elts - eg vcache + * - middle -- fetch, shade, cliptest, viewport + * - pipeline -- the prim pipeline: clipping, wide lines, etc + * - backend -- the vbuf_render provided by the driver. + */ +static boolean +draw_pt_arrays(struct draw_context *draw, + unsigned prim, + unsigned start, + unsigned count) +{ + struct draw_pt_front_end *frontend = NULL; + struct draw_pt_middle_end *middle = NULL; + unsigned opt = 0; + + /* Sanitize primitive length: + */ + { + unsigned first, incr; + draw_pt_split_prim(prim, &first, &incr); + count = trim(count, first, incr); + if (count < first) + return TRUE; + } + + + if (!draw->render) { + opt |= PT_PIPELINE; + } + + if (draw_need_pipeline(draw, + draw->rasterizer, + prim)) { + opt |= PT_PIPELINE; + } + + if (!draw->bypass_clipping && !draw->pt.test_fse) { + opt |= PT_CLIPTEST; + } + + if (!draw->rasterizer->bypass_vs) { + opt |= PT_SHADE; + } + + + if (opt == 0) + middle = draw->pt.middle.fetch_emit; + else if (opt == PT_SHADE && !draw->pt.no_fse) + middle = draw->pt.middle.fetch_shade_emit; + else + middle = draw->pt.middle.general; + + + /* Pick the right frontend + */ + if (draw->pt.user.elts || (opt & PT_PIPELINE)) { + frontend = draw->pt.front.vcache; + } else { + frontend = draw->pt.front.varray; + } + + frontend->prepare( frontend, prim, middle, opt ); + + frontend->run(frontend, + draw_pt_elt_func(draw), + draw_pt_elt_ptr(draw, start), + count); + + frontend->finish( frontend ); + + return TRUE; +} + + +boolean draw_pt_init( struct draw_context *draw ) +{ + draw->pt.test_fse = debug_get_bool_option("DRAW_FSE", FALSE); + draw->pt.no_fse = debug_get_bool_option("DRAW_NO_FSE", FALSE); + + draw->pt.front.vcache = draw_pt_vcache( draw ); + if (!draw->pt.front.vcache) + return FALSE; + + draw->pt.front.varray = draw_pt_varray(draw); + if (!draw->pt.front.varray) + return FALSE; + + draw->pt.middle.fetch_emit = draw_pt_fetch_emit( draw ); + if (!draw->pt.middle.fetch_emit) + return FALSE; + + draw->pt.middle.fetch_shade_emit = draw_pt_middle_fse( draw ); + if (!draw->pt.middle.fetch_shade_emit) + return FALSE; + + draw->pt.middle.general = draw_pt_fetch_pipeline_or_emit( draw ); + if (!draw->pt.middle.general) + return FALSE; + + return TRUE; +} + + +void draw_pt_destroy( struct draw_context *draw ) +{ + if (draw->pt.middle.general) { + draw->pt.middle.general->destroy( draw->pt.middle.general ); + draw->pt.middle.general = NULL; + } + + if (draw->pt.middle.fetch_emit) { + draw->pt.middle.fetch_emit->destroy( draw->pt.middle.fetch_emit ); + draw->pt.middle.fetch_emit = NULL; + } + + if (draw->pt.middle.fetch_shade_emit) { + draw->pt.middle.fetch_shade_emit->destroy( draw->pt.middle.fetch_shade_emit ); + draw->pt.middle.fetch_shade_emit = NULL; + } + + if (draw->pt.front.vcache) { + draw->pt.front.vcache->destroy( draw->pt.front.vcache ); + draw->pt.front.vcache = NULL; + } + + if (draw->pt.front.varray) { + draw->pt.front.varray->destroy( draw->pt.front.varray ); + draw->pt.front.varray = NULL; + } +} + + + + +/** + * Draw vertex arrays + * This is the main entrypoint into the drawing module. + * \param prim one of PIPE_PRIM_x + * \param start index of first vertex to draw + * \param count number of vertices to draw + */ +void +draw_arrays(struct draw_context *draw, unsigned prim, + unsigned start, unsigned count) +{ + unsigned reduced_prim = draw_pt_reduced_prim(prim); + if (reduced_prim != draw->reduced_prim) { + draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); + draw->reduced_prim = reduced_prim; + } + + /* drawing done here: */ + draw_pt_arrays(draw, prim, start, count); +} + +boolean draw_pt_get_edgeflag( struct draw_context *draw, + unsigned idx ) +{ + if (draw->pt.user.edgeflag) + return (draw->pt.user.edgeflag[idx/32] & (1 << (idx%32))) != 0; + else + return 1; +} diff --git a/src/gallium/auxiliary/draw/draw_pt.h b/src/gallium/auxiliary/draw/draw_pt.h new file mode 100644 index 0000000000..c02f229110 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt.h @@ -0,0 +1,235 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#ifndef DRAW_PT_H +#define DRAW_PT_H + +#include "pipe/p_compiler.h" + +typedef unsigned (*pt_elt_func)( const void *elts, unsigned idx ); + +struct draw_pt_middle_end; +struct draw_context; + + +#define PT_SHADE 0x1 +#define PT_CLIPTEST 0x2 +#define PT_PIPELINE 0x4 +#define PT_MAX_MIDDLE 0x8 + + +/* The "front end" - prepare sets of fetch, draw elements for the + * middle end. + * + * Currenly one version of this: + * - vcache - catchall implementation, decomposes to TRI/LINE/POINT prims + * Later: + * - varray, varray_split + * - velement, velement_split + * + * Currenly only using the vcache version. + */ +struct draw_pt_front_end { + void (*prepare)( struct draw_pt_front_end *, + unsigned prim, + struct draw_pt_middle_end *, + unsigned opt ); + + void (*run)( struct draw_pt_front_end *, + pt_elt_func elt_func, + const void *elt_ptr, + unsigned count ); + + void (*finish)( struct draw_pt_front_end * ); + void (*destroy)( struct draw_pt_front_end * ); +}; + + +/* The "middle end" - prepares actual hardware vertices for the + * hardware backend. + * + * Currently two versions of this: + * - fetch, vertex shade, cliptest, prim-pipeline + * - fetch, emit (ie passthrough) + */ +struct draw_pt_middle_end { + void (*prepare)( struct draw_pt_middle_end *, + unsigned prim, + unsigned opt, + unsigned *max_vertices ); + + void (*run)( struct draw_pt_middle_end *, + const unsigned *fetch_elts, + unsigned fetch_count, + const ushort *draw_elts, + unsigned draw_count ); + + void (*run_linear)(struct draw_pt_middle_end *, + unsigned start, + unsigned count); + + /* Transform all vertices in a linear range and then draw them with + * the supplied element list. May fail and return FALSE. + */ + boolean (*run_linear_elts)( struct draw_pt_middle_end *, + unsigned fetch_start, + unsigned fetch_count, + const ushort *draw_elts, + unsigned draw_count ); + + int (*get_max_vertex_count)( struct draw_pt_middle_end * ); + + void (*finish)( struct draw_pt_middle_end * ); + void (*destroy)( struct draw_pt_middle_end * ); +}; + + +/* The "back end" - supplied by the driver, defined in draw_vbuf.h. + */ +struct vbuf_render; +struct vertex_header; + + +/* Helper functions. + */ +pt_elt_func draw_pt_elt_func( struct draw_context *draw ); +const void *draw_pt_elt_ptr( struct draw_context *draw, + unsigned start ); + +/* Frontends: + * + * Currently only the general-purpose vcache implementation, could add + * a special case for tiny vertex buffers. + */ +struct draw_pt_front_end *draw_pt_vcache( struct draw_context *draw ); +struct draw_pt_front_end *draw_pt_varray(struct draw_context *draw); + + +/* Middle-ends: + * + * Currently one general-purpose case which can do all possibilities, + * at the slight expense of creating a vertex_header in some cases + * unecessarily. + * + * The special case fetch_emit code avoids pipeline vertices + * altogether and builds hardware vertices directly from API + * vertex_elements. + */ +struct draw_pt_middle_end *draw_pt_fetch_emit( struct draw_context *draw ); +struct draw_pt_middle_end *draw_pt_middle_fse( struct draw_context *draw ); +struct draw_pt_middle_end *draw_pt_fetch_pipeline_or_emit(struct draw_context *draw); + + +/* More helpers: + */ +boolean draw_pt_get_edgeflag( struct draw_context *draw, + unsigned idx ); + + +/******************************************************************************* + * HW vertex emit: + */ +struct pt_emit; + +void draw_pt_emit_prepare( struct pt_emit *emit, + unsigned prim, + unsigned *max_vertices ); + +void draw_pt_emit( struct pt_emit *emit, + const float (*vertex_data)[4], + unsigned vertex_count, + unsigned stride, + const ushort *elts, + unsigned count ); + +void draw_pt_emit_linear( struct pt_emit *emit, + const float (*vertex_data)[4], + unsigned vertex_count, + unsigned stride, + unsigned start, + unsigned count ); + +void draw_pt_emit_destroy( struct pt_emit *emit ); + +struct pt_emit *draw_pt_emit_create( struct draw_context *draw ); + + +/******************************************************************************* + * API vertex fetch: + */ + +struct pt_fetch; +void draw_pt_fetch_prepare( struct pt_fetch *fetch, + unsigned vertex_size ); + +void draw_pt_fetch_run( struct pt_fetch *fetch, + const unsigned *elts, + unsigned count, + char *verts ); + +void draw_pt_fetch_run_linear( struct pt_fetch *fetch, + unsigned start, + unsigned count, + char *verts ); + +void draw_pt_fetch_destroy( struct pt_fetch *fetch ); + +struct pt_fetch *draw_pt_fetch_create( struct draw_context *draw ); + +/******************************************************************************* + * Post-VS: cliptest, rhw, viewport + */ +struct pt_post_vs; + +boolean draw_pt_post_vs_run( struct pt_post_vs *pvs, + struct vertex_header *pipeline_verts, + unsigned stride, + unsigned count ); + +void draw_pt_post_vs_prepare( struct pt_post_vs *pvs, + boolean bypass_clipping, + boolean identity_viewport, + boolean opengl ); + +struct pt_post_vs *draw_pt_post_vs_create( struct draw_context *draw ); + +void draw_pt_post_vs_destroy( struct pt_post_vs *pvs ); + + +/******************************************************************************* + * Utils: + */ +void draw_pt_split_prim(unsigned prim, unsigned *first, unsigned *incr); +unsigned draw_pt_reduced_prim(unsigned prim); + + +#endif diff --git a/src/gallium/auxiliary/draw/draw_pt_decompose.h b/src/gallium/auxiliary/draw/draw_pt_decompose.h new file mode 100644 index 0000000000..3fb0695687 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt_decompose.h @@ -0,0 +1,153 @@ + + +static void FUNC( ARGS, + unsigned count ) +{ + LOCAL_VARS; + + switch (prim) { + case PIPE_PRIM_POINTS: + for (i = 0; i < count; i ++) { + POINT( (i + 0) ); + } + break; + + case PIPE_PRIM_LINES: + for (i = 0; i+1 < count; i += 2) { + LINE( DRAW_PIPE_RESET_STIPPLE, + (i + 0), + (i + 1)); + } + break; + + case PIPE_PRIM_LINE_LOOP: + if (count >= 2) { + flags = DRAW_PIPE_RESET_STIPPLE; + + for (i = 1; i < count; i++, flags = 0) { + LINE( flags, + (i - 1), + (i )); + } + + LINE( flags, + (i - 1), + (0 )); + } + break; + + case PIPE_PRIM_LINE_STRIP: + flags = DRAW_PIPE_RESET_STIPPLE; + for (i = 1; i < count; i++, flags = 0) { + LINE( flags, + (i - 1), + (i )); + } + break; + + case PIPE_PRIM_TRIANGLES: + for (i = 0; i+2 < count; i += 3) { + TRIANGLE( DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + (i + 0), + (i + 1), + (i + 2 )); + } + break; + + case PIPE_PRIM_TRIANGLE_STRIP: + if (flatfirst) { + for (i = 0; i+2 < count; i++) { + TRIANGLE( DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + (i + 0), + (i + 1 + (i&1)), + (i + 2 - (i&1))); + } + } + else { + for (i = 0; i+2 < count; i++) { + TRIANGLE( DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + (i + 0 + (i&1)), + (i + 1 - (i&1)), + (i + 2 )); + } + } + break; + + case PIPE_PRIM_TRIANGLE_FAN: + if (count >= 3) { + if (flatfirst) { + for (i = 0; i+2 < count; i++) { + TRIANGLE( DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + (i + 1), + (i + 2), + (0 )); + } + } + else { + for (i = 0; i+2 < count; i++) { + TRIANGLE( DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + (0), + (i + 1), + (i + 2 )); + } + } + } + break; + + + case PIPE_PRIM_QUADS: + for (i = 0; i+3 < count; i += 4) { + QUAD( (i + 0), + (i + 1), + (i + 2), + (i + 3)); + } + break; + + case PIPE_PRIM_QUAD_STRIP: + for (i = 0; i+3 < count; i += 2) { + QUAD( (i + 2), + (i + 0), + (i + 1), + (i + 3)); + } + break; + + case PIPE_PRIM_POLYGON: + { + /* These bitflags look a little odd because we submit the + * vertices as (1,2,0) to satisfy flatshade requirements. + */ + const ushort edge_first = DRAW_PIPE_EDGE_FLAG_2; + const ushort edge_middle = DRAW_PIPE_EDGE_FLAG_0; + const ushort edge_last = DRAW_PIPE_EDGE_FLAG_1; + + flags = DRAW_PIPE_RESET_STIPPLE | edge_first | edge_middle; + + for (i = 0; i+2 < count; i++, flags = edge_middle) { + + if (i + 3 == count) + flags |= edge_last; + + TRIANGLE( flags, + (i + 1), + (i + 2), + (0)); + } + } + break; + + default: + assert(0); + break; + } + + FLUSH; +} + + +#undef TRIANGLE +#undef QUAD +#undef POINT +#undef LINE +#undef FUNC diff --git a/src/gallium/auxiliary/draw/draw_pt_elts.c b/src/gallium/auxiliary/draw/draw_pt_elts.c new file mode 100644 index 0000000000..b7780fb507 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt_elts.c @@ -0,0 +1,88 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "draw/draw_pt.h" +#include "draw/draw_private.h" + +/* Neat get_elt func that also works for varrays drawing by encoding + * the start value into a pointer. + */ + +static unsigned elt_uint( const void *elts, unsigned idx ) +{ + return *(((const uint *)elts) + idx); +} + +static unsigned elt_ushort( const void *elts, unsigned idx ) +{ + return *(((const ushort *)elts) + idx); +} + +static unsigned elt_ubyte( const void *elts, unsigned idx ) +{ + return *(((const ubyte *)elts) + idx); +} + +static unsigned elt_vert( const void *elts, unsigned idx ) +{ + return (const ubyte *)elts - (const ubyte *)NULL + idx; +} + +pt_elt_func draw_pt_elt_func( struct draw_context *draw ) +{ + switch (draw->pt.user.eltSize) { + case 0: return &elt_vert; + case 1: return &elt_ubyte; + case 2: return &elt_ushort; + case 4: return &elt_uint; + default: return NULL; + } +} + +const void *draw_pt_elt_ptr( struct draw_context *draw, + unsigned start ) +{ + const char *elts = draw->pt.user.elts; + + switch (draw->pt.user.eltSize) { + case 0: + return (const void *)(((const ubyte *)NULL) + start); + case 1: + return (const void *)(((const ubyte *)elts) + start); + case 2: + return (const void *)(((const ushort *)elts) + start); + case 4: + return (const void *)(((const uint *)elts) + start); + default: + return NULL; + } +} diff --git a/src/gallium/auxiliary/draw/draw_pt_emit.c b/src/gallium/auxiliary/draw/draw_pt_emit.c new file mode 100644 index 0000000000..d4eca80588 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt_emit.c @@ -0,0 +1,298 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include "util/u_memory.h" +#include "draw/draw_context.h" +#include "draw/draw_private.h" +#include "draw/draw_vbuf.h" +#include "draw/draw_vertex.h" +#include "draw/draw_pt.h" +#include "translate/translate.h" +#include "translate/translate_cache.h" + +struct pt_emit { + struct draw_context *draw; + + struct translate *translate; + + struct translate_cache *cache; + unsigned prim; + + const struct vertex_info *vinfo; +}; + +void draw_pt_emit_prepare( struct pt_emit *emit, + unsigned prim, + unsigned *max_vertices ) +{ + struct draw_context *draw = emit->draw; + const struct vertex_info *vinfo; + unsigned dst_offset; + struct translate_key hw_key; + unsigned i; + boolean ok; + + /* XXX: need to flush to get prim_vbuf.c to release its allocation?? + */ + draw_do_flush( draw, DRAW_FLUSH_BACKEND ); + + + /* XXX: may need to defensively reset this later on as clipping can + * clobber this state in the render backend. + */ + emit->prim = prim; + + ok = draw->render->set_primitive(draw->render, emit->prim); + if (!ok) { + assert(0); + return; + } + + /* Must do this after set_primitive() above: + */ + emit->vinfo = vinfo = draw->render->get_vertex_info(draw->render); + + + /* Translate from pipeline vertices to hw vertices. + */ + dst_offset = 0; + for (i = 0; i < vinfo->num_attribs; i++) { + unsigned emit_sz = 0; + unsigned src_buffer = 0; + unsigned output_format; + unsigned src_offset = (vinfo->src_index[i] * 4 * sizeof(float) ); + + + + switch (vinfo->emit[i]) { + case EMIT_4F: + output_format = PIPE_FORMAT_R32G32B32A32_FLOAT; + emit_sz = 4 * sizeof(float); + break; + case EMIT_3F: + output_format = PIPE_FORMAT_R32G32B32_FLOAT; + emit_sz = 3 * sizeof(float); + break; + case EMIT_2F: + output_format = PIPE_FORMAT_R32G32_FLOAT; + emit_sz = 2 * sizeof(float); + break; + case EMIT_1F: + output_format = PIPE_FORMAT_R32_FLOAT; + emit_sz = 1 * sizeof(float); + break; + case EMIT_1F_PSIZE: + output_format = PIPE_FORMAT_R32_FLOAT; + emit_sz = 1 * sizeof(float); + src_buffer = 1; + src_offset = 0; + break; + case EMIT_4UB: + output_format = PIPE_FORMAT_B8G8R8A8_UNORM; + emit_sz = 4 * sizeof(ubyte); + break; + default: + assert(0); + output_format = PIPE_FORMAT_NONE; + emit_sz = 0; + break; + } + + hw_key.element[i].input_format = PIPE_FORMAT_R32G32B32A32_FLOAT; + hw_key.element[i].input_buffer = src_buffer; + hw_key.element[i].input_offset = src_offset; + hw_key.element[i].output_format = output_format; + hw_key.element[i].output_offset = dst_offset; + + dst_offset += emit_sz; + } + + hw_key.nr_elements = vinfo->num_attribs; + hw_key.output_stride = vinfo->size * 4; + + if (!emit->translate || + translate_key_compare(&emit->translate->key, &hw_key) != 0) + { + translate_key_sanitize(&hw_key); + emit->translate = translate_cache_find(emit->cache, &hw_key); + } + + *max_vertices = (draw->render->max_vertex_buffer_bytes / + (vinfo->size * 4)); + + /* even number */ + *max_vertices = *max_vertices & ~1; +} + + +void draw_pt_emit( struct pt_emit *emit, + const float (*vertex_data)[4], + unsigned vertex_count, + unsigned stride, + const ushort *elts, + unsigned count ) +{ + struct draw_context *draw = emit->draw; + struct translate *translate = emit->translate; + struct vbuf_render *render = draw->render; + void *hw_verts; + + /* XXX: need to flush to get prim_vbuf.c to release its allocation?? + */ + draw_do_flush( draw, DRAW_FLUSH_BACKEND ); + + /* XXX: and work out some way to coordinate the render primitive + * between vbuf.c and here... + */ + if (!draw->render->set_primitive(draw->render, emit->prim)) { + assert(0); + return; + } + + hw_verts = render->allocate_vertices(render, + (ushort)translate->key.output_stride, + (ushort)vertex_count); + if (!hw_verts) { + assert(0); + return; + } + + translate->set_buffer(translate, + 0, + vertex_data, + stride ); + + translate->set_buffer(translate, + 1, + &draw->rasterizer->point_size, + 0); + + translate->run( translate, + 0, + vertex_count, + hw_verts ); + + render->draw(render, + elts, + count); + + render->release_vertices(render, + hw_verts, + translate->key.output_stride, + vertex_count); +} + + +void draw_pt_emit_linear(struct pt_emit *emit, + const float (*vertex_data)[4], + unsigned vertex_count, + unsigned stride, + unsigned start, + unsigned count) +{ + struct draw_context *draw = emit->draw; + struct translate *translate = emit->translate; + struct vbuf_render *render = draw->render; + void *hw_verts; + +#if 0 + debug_printf("Linear emit\n"); +#endif + /* XXX: need to flush to get prim_vbuf.c to release its allocation?? + */ + draw_do_flush( draw, DRAW_FLUSH_BACKEND ); + + /* XXX: and work out some way to coordinate the render primitive + * between vbuf.c and here... + */ + if (!draw->render->set_primitive(draw->render, emit->prim)) { + assert(0); + return; + } + + hw_verts = render->allocate_vertices(render, + (ushort)translate->key.output_stride, + (ushort)count); + if (!hw_verts) { + assert(0); + return; + } + + translate->set_buffer(translate, 0, + vertex_data, stride); + + translate->set_buffer(translate, 1, + &draw->rasterizer->point_size, + 0); + + translate->run(translate, + 0, + vertex_count, + hw_verts); + + if (0) { + unsigned i; + for (i = 0; i < vertex_count; i++) { + debug_printf("\n\n%s vertex %d:\n", __FUNCTION__, i); + draw_dump_emitted_vertex( emit->vinfo, + (const uint8_t *)hw_verts + + translate->key.output_stride * i ); + } + } + + + render->draw_arrays(render, start, count); + + render->release_vertices(render, + hw_verts, + translate->key.output_stride, + vertex_count); +} + +struct pt_emit *draw_pt_emit_create( struct draw_context *draw ) +{ + struct pt_emit *emit = CALLOC_STRUCT(pt_emit); + if (!emit) + return NULL; + + emit->draw = draw; + emit->cache = translate_cache_create(); + if (!emit->cache) { + FREE(emit); + return NULL; + } + + return emit; +} + +void draw_pt_emit_destroy( struct pt_emit *emit ) +{ + if (emit->cache) + translate_cache_destroy(emit->cache); + + FREE(emit); +} diff --git a/src/gallium/auxiliary/draw/draw_pt_fetch.c b/src/gallium/auxiliary/draw/draw_pt_fetch.c new file mode 100644 index 0000000000..6377f896fb --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt_fetch.c @@ -0,0 +1,228 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include "util/u_memory.h" +#include "draw/draw_context.h" +#include "draw/draw_private.h" +#include "draw/draw_vbuf.h" +#include "draw/draw_vertex.h" +#include "draw/draw_pt.h" +#include "translate/translate.h" +#include "translate/translate_cache.h" + + +struct pt_fetch { + struct draw_context *draw; + + struct translate *translate; + + unsigned vertex_size; + boolean need_edgeflags; + + struct translate_cache *cache; +}; + +/* Perform the fetch from API vertex elements & vertex buffers, to a + * contiguous set of float[4] attributes as required for the + * vertex_shader->run_linear() method. + * + * This is used in all cases except pure passthrough + * (draw_pt_fetch_emit.c) which has its own version to translate + * directly to hw vertices. + * + */ +void draw_pt_fetch_prepare( struct pt_fetch *fetch, + unsigned vertex_size ) +{ + struct draw_context *draw = fetch->draw; + unsigned i, nr = 0; + unsigned dst_offset = 0; + struct translate_key key; + + fetch->vertex_size = vertex_size; + + /* Always emit/leave space for a vertex header. + * + * It's worth considering whether the vertex headers should contain + * a pointer to the 'data', rather than having it inline. + * Something to look at after we've fully switched over to the pt + * paths. + */ + { + /* Need to set header->vertex_id = 0xffff somehow. + */ + key.element[nr].input_format = PIPE_FORMAT_R32_FLOAT; + key.element[nr].input_buffer = draw->pt.nr_vertex_buffers; + key.element[nr].input_offset = 0; + key.element[nr].output_format = PIPE_FORMAT_R32_FLOAT; + key.element[nr].output_offset = dst_offset; + dst_offset += 1 * sizeof(float); + nr++; + + + /* Just leave the clip[] array untouched. + */ + dst_offset += 4 * sizeof(float); + } + + + for (i = 0; i < draw->pt.nr_vertex_elements; i++) { + key.element[nr].input_format = draw->pt.vertex_element[i].src_format; + key.element[nr].input_buffer = draw->pt.vertex_element[i].vertex_buffer_index; + key.element[nr].input_offset = draw->pt.vertex_element[i].src_offset; + key.element[nr].output_format = PIPE_FORMAT_R32G32B32A32_FLOAT; + key.element[nr].output_offset = dst_offset; + + dst_offset += 4 * sizeof(float); + nr++; + } + + assert(dst_offset <= vertex_size); + + key.nr_elements = nr; + key.output_stride = vertex_size; + + + if (!fetch->translate || + translate_key_compare(&fetch->translate->key, &key) != 0) + { + translate_key_sanitize(&key); + fetch->translate = translate_cache_find(fetch->cache, &key); + + { + static struct vertex_header vh = { 0, 1, 0, 0xffff }; + fetch->translate->set_buffer(fetch->translate, + draw->pt.nr_vertex_buffers, + &vh, + 0); + } + } + + fetch->need_edgeflags = ((draw->rasterizer->fill_cw != PIPE_POLYGON_MODE_FILL || + draw->rasterizer->fill_ccw != PIPE_POLYGON_MODE_FILL) && + draw->pt.user.edgeflag); +} + + + + +void draw_pt_fetch_run( struct pt_fetch *fetch, + const unsigned *elts, + unsigned count, + char *verts ) +{ + struct draw_context *draw = fetch->draw; + struct translate *translate = fetch->translate; + unsigned i; + + for (i = 0; i < draw->pt.nr_vertex_buffers; i++) { + translate->set_buffer(translate, + i, + ((char *)draw->pt.user.vbuffer[i] + + draw->pt.vertex_buffer[i].buffer_offset), + draw->pt.vertex_buffer[i].pitch ); + } + + translate->run_elts( translate, + elts, + count, + verts ); + + /* Edgeflags are hard to fit into a translate program, populate + * them separately if required. In the setup above they are + * defaulted to one, so only need this if there is reason to change + * that default: + */ + if (fetch->need_edgeflags) { + for (i = 0; i < count; i++) { + struct vertex_header *vh = (struct vertex_header *)(verts + i * fetch->vertex_size); + vh->edgeflag = draw_pt_get_edgeflag( draw, elts[i] ); + } + } +} + + +void draw_pt_fetch_run_linear( struct pt_fetch *fetch, + unsigned start, + unsigned count, + char *verts ) +{ + struct draw_context *draw = fetch->draw; + struct translate *translate = fetch->translate; + unsigned i; + + for (i = 0; i < draw->pt.nr_vertex_buffers; i++) { + translate->set_buffer(translate, + i, + ((char *)draw->pt.user.vbuffer[i] + + draw->pt.vertex_buffer[i].buffer_offset), + draw->pt.vertex_buffer[i].pitch ); + } + + translate->run( translate, + start, + count, + verts ); + + /* Edgeflags are hard to fit into a translate program, populate + * them separately if required. In the setup above they are + * defaulted to one, so only need this if there is reason to change + * that default: + */ + if (fetch->need_edgeflags) { + for (i = 0; i < count; i++) { + struct vertex_header *vh = (struct vertex_header *)(verts + i * fetch->vertex_size); + vh->edgeflag = draw_pt_get_edgeflag( draw, start + i ); + } + } +} + + +struct pt_fetch *draw_pt_fetch_create( struct draw_context *draw ) +{ + struct pt_fetch *fetch = CALLOC_STRUCT(pt_fetch); + if (!fetch) + return NULL; + + fetch->draw = draw; + fetch->cache = translate_cache_create(); + if (!fetch->cache) { + FREE(fetch); + return NULL; + } + + return fetch; +} + +void draw_pt_fetch_destroy( struct pt_fetch *fetch ) +{ + if (fetch->cache) + translate_cache_destroy(fetch->cache); + + FREE(fetch); +} + diff --git a/src/gallium/auxiliary/draw/draw_pt_fetch_emit.c b/src/gallium/auxiliary/draw/draw_pt_fetch_emit.c new file mode 100644 index 0000000000..5a4db6cfe5 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt_fetch_emit.c @@ -0,0 +1,413 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "util/u_memory.h" +#include "draw/draw_context.h" +#include "draw/draw_private.h" +#include "draw/draw_vbuf.h" +#include "draw/draw_vertex.h" +#include "draw/draw_pt.h" +#include "translate/translate.h" +#include "translate/translate_cache.h" + +/* The simplest 'middle end' in the new vertex code. + * + * The responsibilities of a middle end are to: + * - perform vertex fetch using + * - draw vertex element/buffer state + * - a list of fetch indices we received as an input + * - run the vertex shader + * - cliptest, + * - clip coord calculation + * - viewport transformation + * - if necessary, run the primitive pipeline, passing it: + * - a linear array of vertex_header vertices constructed here + * - a set of draw indices we received as an input + * - otherwise, drive the hw backend, + * - allocate space for hardware format vertices + * - translate the vertex-shader output vertices to hw format + * - calling the backend draw functions. + * + * For convenience, we provide a helper function to drive the hardware + * backend given similar inputs to those required to run the pipeline. + * + * In the case of passthrough mode, many of these actions are disabled + * or noops, so we end up doing: + * + * - perform vertex fetch + * - drive the hw backend + * + * IE, basically just vertex fetch to post-vs-format vertices, + * followed by a call to the backend helper function. + */ + + +struct fetch_emit_middle_end { + struct draw_pt_middle_end base; + struct draw_context *draw; + + struct translate *translate; + const struct vertex_info *vinfo; + + /* Cache point size somewhere it's address won't change: + */ + float point_size; + + struct translate_cache *cache; +}; + + + + +static void fetch_emit_prepare( struct draw_pt_middle_end *middle, + unsigned prim, + unsigned opt, + unsigned *max_vertices ) +{ + struct fetch_emit_middle_end *feme = (struct fetch_emit_middle_end *)middle; + struct draw_context *draw = feme->draw; + const struct vertex_info *vinfo; + unsigned i, dst_offset; + boolean ok; + struct translate_key key; + + + ok = draw->render->set_primitive( draw->render, + prim ); + if (!ok) { + assert(0); + return; + } + + /* Must do this after set_primitive() above: + */ + vinfo = feme->vinfo = draw->render->get_vertex_info(draw->render); + + + + /* Transform from API vertices to HW vertices, skipping the + * pipeline_vertex intermediate step. + */ + dst_offset = 0; + memset(&key, 0, sizeof(key)); + + for (i = 0; i < vinfo->num_attribs; i++) { + const struct pipe_vertex_element *src = &draw->pt.vertex_element[vinfo->src_index[i]]; + + unsigned emit_sz = 0; + unsigned input_format = src->src_format; + unsigned input_buffer = src->vertex_buffer_index; + unsigned input_offset = src->src_offset; + unsigned output_format; + + switch (vinfo->emit[i]) { + case EMIT_4F: + output_format = PIPE_FORMAT_R32G32B32A32_FLOAT; + emit_sz = 4 * sizeof(float); + break; + case EMIT_3F: + output_format = PIPE_FORMAT_R32G32B32_FLOAT; + emit_sz = 3 * sizeof(float); + break; + case EMIT_2F: + output_format = PIPE_FORMAT_R32G32_FLOAT; + emit_sz = 2 * sizeof(float); + break; + case EMIT_1F: + output_format = PIPE_FORMAT_R32_FLOAT; + emit_sz = 1 * sizeof(float); + break; + case EMIT_1F_PSIZE: + input_format = PIPE_FORMAT_R32_FLOAT; + input_buffer = draw->pt.nr_vertex_buffers; + input_offset = 0; + output_format = PIPE_FORMAT_R32_FLOAT; + emit_sz = 1 * sizeof(float); + break; + default: + assert(0); + output_format = PIPE_FORMAT_NONE; + emit_sz = 0; + continue; + } + + key.element[i].input_format = input_format; + key.element[i].input_buffer = input_buffer; + key.element[i].input_offset = input_offset; + key.element[i].output_format = output_format; + key.element[i].output_offset = dst_offset; + + dst_offset += emit_sz; + } + + key.nr_elements = vinfo->num_attribs; + key.output_stride = vinfo->size * 4; + + /* Don't bother with caching at this stage: + */ + if (!feme->translate || + translate_key_compare(&feme->translate->key, &key) != 0) + { + translate_key_sanitize(&key); + feme->translate = translate_cache_find(feme->cache, + &key); + + + feme->translate->set_buffer(feme->translate, + draw->pt.nr_vertex_buffers, + &feme->point_size, + 0); + } + + feme->point_size = draw->rasterizer->point_size; + + for (i = 0; i < draw->pt.nr_vertex_buffers; i++) { + feme->translate->set_buffer(feme->translate, + i, + ((char *)draw->pt.user.vbuffer[i] + + draw->pt.vertex_buffer[i].buffer_offset), + draw->pt.vertex_buffer[i].pitch ); + } + + *max_vertices = (draw->render->max_vertex_buffer_bytes / + (vinfo->size * 4)); + + /* Return an even number of verts. + * This prevents "parity" errors when splitting long triangle strips which + * can lead to front/back culling mix-ups. + * Every other triangle in a strip has an alternate front/back orientation + * so splitting at an odd position can cause the orientation of subsequent + * triangles to get reversed. + */ + *max_vertices = *max_vertices & ~1; +} + + + + + +static void fetch_emit_run( struct draw_pt_middle_end *middle, + const unsigned *fetch_elts, + unsigned fetch_count, + const ushort *draw_elts, + unsigned draw_count ) +{ + struct fetch_emit_middle_end *feme = (struct fetch_emit_middle_end *)middle; + struct draw_context *draw = feme->draw; + void *hw_verts; + + /* XXX: need to flush to get prim_vbuf.c to release its allocation?? + */ + draw_do_flush( draw, DRAW_FLUSH_BACKEND ); + + hw_verts = draw->render->allocate_vertices( draw->render, + (ushort)feme->translate->key.output_stride, + (ushort)fetch_count ); + if (!hw_verts) { + assert(0); + return; + } + + + /* Single routine to fetch vertices and emit HW verts. + */ + feme->translate->run_elts( feme->translate, + fetch_elts, + fetch_count, + hw_verts ); + + if (0) { + unsigned i; + for (i = 0; i < fetch_count; i++) { + debug_printf("\n\nvertex %d:\n", i); + draw_dump_emitted_vertex( feme->vinfo, + (const uint8_t *)hw_verts + feme->vinfo->size * 4 * i ); + } + } + + /* XXX: Draw arrays path to avoid re-emitting index list again and + * again. + */ + draw->render->draw( draw->render, + draw_elts, + draw_count ); + + /* Done -- that was easy, wasn't it: + */ + draw->render->release_vertices( draw->render, + hw_verts, + feme->translate->key.output_stride, + fetch_count ); + +} + + +static void fetch_emit_run_linear( struct draw_pt_middle_end *middle, + unsigned start, + unsigned count ) +{ + struct fetch_emit_middle_end *feme = (struct fetch_emit_middle_end *)middle; + struct draw_context *draw = feme->draw; + void *hw_verts; + + /* XXX: need to flush to get prim_vbuf.c to release its allocation?? + */ + draw_do_flush( draw, DRAW_FLUSH_BACKEND ); + + hw_verts = draw->render->allocate_vertices( draw->render, + (ushort)feme->translate->key.output_stride, + (ushort)count ); + if (!hw_verts) { + assert(0); + return; + } + + /* Single routine to fetch vertices and emit HW verts. + */ + feme->translate->run( feme->translate, + start, + count, + hw_verts ); + + if (0) { + unsigned i; + for (i = 0; i < count; i++) { + debug_printf("\n\nvertex %d:\n", i); + draw_dump_emitted_vertex( feme->vinfo, + (const uint8_t *)hw_verts + feme->vinfo->size * 4 * i ); + } + } + + /* XXX: Draw arrays path to avoid re-emitting index list again and + * again. + */ + draw->render->draw_arrays( draw->render, + 0, /*start*/ + count ); + + /* Done -- that was easy, wasn't it: + */ + draw->render->release_vertices( draw->render, + hw_verts, + feme->translate->key.output_stride, + count ); + +} + + +static boolean fetch_emit_run_linear_elts( struct draw_pt_middle_end *middle, + unsigned start, + unsigned count, + const ushort *draw_elts, + unsigned draw_count ) +{ + struct fetch_emit_middle_end *feme = (struct fetch_emit_middle_end *)middle; + struct draw_context *draw = feme->draw; + void *hw_verts; + + /* XXX: need to flush to get prim_vbuf.c to release its allocation?? + */ + draw_do_flush( draw, DRAW_FLUSH_BACKEND ); + + hw_verts = draw->render->allocate_vertices( draw->render, + (ushort)feme->translate->key.output_stride, + (ushort)count ); + if (!hw_verts) + return FALSE; + + /* Single routine to fetch vertices and emit HW verts. + */ + feme->translate->run( feme->translate, + start, + count, + hw_verts ); + + /* XXX: Draw arrays path to avoid re-emitting index list again and + * again. + */ + draw->render->draw( draw->render, + draw_elts, + draw_count ); + + /* Done -- that was easy, wasn't it: + */ + draw->render->release_vertices( draw->render, + hw_verts, + feme->translate->key.output_stride, + count ); + + return TRUE; +} + + + + +static void fetch_emit_finish( struct draw_pt_middle_end *middle ) +{ + /* nothing to do */ +} + +static void fetch_emit_destroy( struct draw_pt_middle_end *middle ) +{ + struct fetch_emit_middle_end *feme = (struct fetch_emit_middle_end *)middle; + + if (feme->cache) + translate_cache_destroy(feme->cache); + + FREE(middle); +} + + +struct draw_pt_middle_end *draw_pt_fetch_emit( struct draw_context *draw ) +{ + struct fetch_emit_middle_end *fetch_emit = CALLOC_STRUCT( fetch_emit_middle_end ); + if (fetch_emit == NULL) + return NULL; + + fetch_emit->cache = translate_cache_create(); + if (!fetch_emit->cache) { + FREE(fetch_emit); + return NULL; + } + + fetch_emit->base.prepare = fetch_emit_prepare; + fetch_emit->base.run = fetch_emit_run; + fetch_emit->base.run_linear = fetch_emit_run_linear; + fetch_emit->base.run_linear_elts = fetch_emit_run_linear_elts; + fetch_emit->base.finish = fetch_emit_finish; + fetch_emit->base.destroy = fetch_emit_destroy; + + fetch_emit->draw = draw; + + return &fetch_emit->base; +} + diff --git a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_emit.c b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_emit.c new file mode 100644 index 0000000000..73fc70c1bc --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_emit.c @@ -0,0 +1,408 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + +#include "util/u_math.h" +#include "util/u_memory.h" +#include "draw/draw_context.h" +#include "draw/draw_private.h" +#include "draw/draw_vbuf.h" +#include "draw/draw_vertex.h" +#include "draw/draw_pt.h" +#include "draw/draw_vs.h" + +#include "translate/translate.h" + +struct fetch_shade_emit; + + +/* Prototype fetch, shade, emit-hw-verts all in one go. + */ +struct fetch_shade_emit { + struct draw_pt_middle_end base; + struct draw_context *draw; + + + /* Temporaries: + */ + const float *constants; + unsigned pitch[PIPE_MAX_ATTRIBS]; + const ubyte *src[PIPE_MAX_ATTRIBS]; + unsigned prim; + + struct draw_vs_varient_key key; + struct draw_vs_varient *active; + + + const struct vertex_info *vinfo; +}; + + + + +static void fse_prepare( struct draw_pt_middle_end *middle, + unsigned prim, + unsigned opt, + unsigned *max_vertices ) +{ + struct fetch_shade_emit *fse = (struct fetch_shade_emit *)middle; + struct draw_context *draw = fse->draw; + unsigned num_vs_inputs = draw->vs.vertex_shader->info.num_inputs; + const struct vertex_info *vinfo; + unsigned i; + + + if (!draw->render->set_primitive( draw->render, + prim )) { + assert(0); + return; + } + + /* Must do this after set_primitive() above: + */ + fse->vinfo = vinfo = draw->render->get_vertex_info(draw->render); + + + + fse->key.output_stride = vinfo->size * 4; + fse->key.nr_outputs = vinfo->num_attribs; + fse->key.nr_inputs = num_vs_inputs; + + fse->key.nr_elements = MAX2(fse->key.nr_outputs, /* outputs - translate to hw format */ + fse->key.nr_inputs); /* inputs - fetch from api format */ + + fse->key.viewport = !draw->identity_viewport; + fse->key.clip = !draw->bypass_clipping; + fse->key.pad = 0; + + memset(fse->key.element, 0, + fse->key.nr_elements * sizeof(fse->key.element[0])); + + for (i = 0; i < num_vs_inputs; i++) { + const struct pipe_vertex_element *src = &draw->pt.vertex_element[i]; + fse->key.element[i].in.format = src->src_format; + + /* Consider ignoring these, ie make generated programs + * independent of this state: + */ + fse->key.element[i].in.buffer = src->vertex_buffer_index; + fse->key.element[i].in.offset = src->src_offset; + } + + + { + unsigned dst_offset = 0; + + for (i = 0; i < vinfo->num_attribs; i++) { + unsigned emit_sz = 0; + + switch (vinfo->emit[i]) { + case EMIT_4F: + emit_sz = 4 * sizeof(float); + break; + case EMIT_3F: + emit_sz = 3 * sizeof(float); + break; + case EMIT_2F: + emit_sz = 2 * sizeof(float); + break; + case EMIT_1F: + emit_sz = 1 * sizeof(float); + break; + case EMIT_1F_PSIZE: + emit_sz = 1 * sizeof(float); + break; + case EMIT_4UB: + emit_sz = 4 * sizeof(ubyte); + break; + default: + assert(0); + break; + } + + /* The elements in the key correspond to vertex shader output + * numbers, not to positions in the hw vertex description -- + * that's handled by the output_offset field. + */ + fse->key.element[i].out.format = vinfo->emit[i]; + fse->key.element[i].out.vs_output = vinfo->src_index[i]; + fse->key.element[i].out.offset = dst_offset; + + dst_offset += emit_sz; + assert(fse->key.output_stride >= dst_offset); + } + } + + + /* Would normally look up a vertex shader and peruse its list of + * varients somehow. We omitted that step and put all the + * hardcoded "shaders" into an array. We're just making the + * assumption that this happens to be a matching shader... ie + * you're running isosurf, aren't you? + */ + fse->active = draw_vs_lookup_varient( draw->vs.vertex_shader, + &fse->key ); + + if (!fse->active) { + assert(0); + return ; + } + + /* Now set buffer pointers: + */ + for (i = 0; i < num_vs_inputs; i++) { + unsigned buf = draw->pt.vertex_element[i].vertex_buffer_index; + + fse->active->set_input( fse->active, + i, + + ((const ubyte *) draw->pt.user.vbuffer[buf] + + draw->pt.vertex_buffer[buf].buffer_offset), + + draw->pt.vertex_buffer[buf].pitch ); + } + + *max_vertices = (draw->render->max_vertex_buffer_bytes / + (vinfo->size * 4)); + + /* Return an even number of verts. + * This prevents "parity" errors when splitting long triangle strips which + * can lead to front/back culling mix-ups. + * Every other triangle in a strip has an alternate front/back orientation + * so splitting at an odd position can cause the orientation of subsequent + * triangles to get reversed. + */ + *max_vertices = *max_vertices & ~1; + + /* Probably need to do this somewhere (or fix exec shader not to + * need it): + */ + if (1) { + struct draw_vertex_shader *vs = draw->vs.vertex_shader; + vs->prepare(vs, draw); + } + + + //return TRUE; +} + + + + + + + +static void fse_run_linear( struct draw_pt_middle_end *middle, + unsigned start, + unsigned count ) +{ + struct fetch_shade_emit *fse = (struct fetch_shade_emit *)middle; + struct draw_context *draw = fse->draw; + char *hw_verts; + + /* XXX: need to flush to get prim_vbuf.c to release its allocation?? + */ + draw_do_flush( draw, DRAW_FLUSH_BACKEND ); + + hw_verts = draw->render->allocate_vertices( draw->render, + (ushort)fse->key.output_stride, + (ushort)count ); + + if (!hw_verts) { + assert(0); + return; + } + + /* Single routine to fetch vertices, run shader and emit HW verts. + * Clipping is done elsewhere -- either by the API or on hardware, + * or for some other reason not required... + */ + fse->active->run_linear( fse->active, + start, count, + hw_verts ); + + /* Draw arrays path to avoid re-emitting index list again and + * again. + */ + draw->render->draw_arrays( draw->render, + 0, + count ); + + if (0) { + unsigned i; + for (i = 0; i < count; i++) { + debug_printf("\n\n%s vertex %d: (stride %d, offset %d)\n", __FUNCTION__, i, + fse->key.output_stride, + fse->key.output_stride * i); + + draw_dump_emitted_vertex( fse->vinfo, + (const uint8_t *)hw_verts + fse->key.output_stride * i ); + } + } + + + draw->render->release_vertices( draw->render, + hw_verts, + fse->key.output_stride, + count ); +} + + +static void +fse_run(struct draw_pt_middle_end *middle, + const unsigned *fetch_elts, + unsigned fetch_count, + const ushort *draw_elts, + unsigned draw_count ) +{ + struct fetch_shade_emit *fse = (struct fetch_shade_emit *)middle; + struct draw_context *draw = fse->draw; + void *hw_verts; + + /* XXX: need to flush to get prim_vbuf.c to release its allocation?? + */ + draw_do_flush( draw, DRAW_FLUSH_BACKEND ); + + hw_verts = draw->render->allocate_vertices( draw->render, + (ushort)fse->key.output_stride, + (ushort)fetch_count ); + if (!hw_verts) { + assert(0); + return; + } + + + /* Single routine to fetch vertices, run shader and emit HW verts. + */ + fse->active->run_elts( fse->active, + fetch_elts, + fetch_count, + hw_verts ); + + draw->render->draw( draw->render, + draw_elts, + draw_count ); + + if (0) { + unsigned i; + for (i = 0; i < fetch_count; i++) { + debug_printf("\n\n%s vertex %d:\n", __FUNCTION__, i); + draw_dump_emitted_vertex( fse->vinfo, + (const uint8_t *)hw_verts + + fse->key.output_stride * i ); + } + } + + + draw->render->release_vertices( draw->render, + hw_verts, + fse->key.output_stride, + fetch_count ); + +} + + + +static boolean fse_run_linear_elts( struct draw_pt_middle_end *middle, + unsigned start, + unsigned count, + const ushort *draw_elts, + unsigned draw_count ) +{ + struct fetch_shade_emit *fse = (struct fetch_shade_emit *)middle; + struct draw_context *draw = fse->draw; + char *hw_verts; + + /* XXX: need to flush to get prim_vbuf.c to release its allocation?? + */ + draw_do_flush( draw, DRAW_FLUSH_BACKEND ); + + hw_verts = draw->render->allocate_vertices( draw->render, + (ushort)fse->key.output_stride, + (ushort)count ); + + if (!hw_verts) { + return FALSE; + } + + /* Single routine to fetch vertices, run shader and emit HW verts. + * Clipping is done elsewhere -- either by the API or on hardware, + * or for some other reason not required... + */ + fse->active->run_linear( fse->active, + start, count, + hw_verts ); + + + draw->render->draw( draw->render, + draw_elts, + draw_count ); + + + + draw->render->release_vertices( draw->render, + hw_verts, + fse->key.output_stride, + count ); + + return TRUE; +} + + + +static void fse_finish( struct draw_pt_middle_end *middle ) +{ +} + + +static void +fse_destroy( struct draw_pt_middle_end *middle ) +{ + FREE(middle); +} + +struct draw_pt_middle_end *draw_pt_middle_fse( struct draw_context *draw ) +{ + struct fetch_shade_emit *fse = CALLOC_STRUCT(fetch_shade_emit); + if (!fse) + return NULL; + + fse->base.prepare = fse_prepare; + fse->base.run = fse_run; + fse->base.run_linear = fse_run_linear; + fse->base.run_linear_elts = fse_run_linear_elts; + fse->base.finish = fse_finish; + fse->base.destroy = fse_destroy; + fse->draw = draw; + + return &fse->base; +} diff --git a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c new file mode 100644 index 0000000000..ec3b41c320 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c @@ -0,0 +1,396 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include "util/u_math.h" +#include "util/u_memory.h" +#include "draw/draw_context.h" +#include "draw/draw_vbuf.h" +#include "draw/draw_vertex.h" +#include "draw/draw_pt.h" +#include "draw/draw_vs.h" +#include "translate/translate.h" + + +struct fetch_pipeline_middle_end { + struct draw_pt_middle_end base; + struct draw_context *draw; + + struct pt_emit *emit; + struct pt_fetch *fetch; + struct pt_post_vs *post_vs; + + unsigned vertex_data_offset; + unsigned vertex_size; + unsigned prim; + unsigned opt; +}; + + +static void fetch_pipeline_prepare( struct draw_pt_middle_end *middle, + unsigned prim, + unsigned opt, + unsigned *max_vertices ) +{ + struct fetch_pipeline_middle_end *fpme = (struct fetch_pipeline_middle_end *)middle; + struct draw_context *draw = fpme->draw; + struct draw_vertex_shader *vs = draw->vs.vertex_shader; + + /* Add one to num_outputs because the pipeline occasionally tags on + * an additional texcoord, eg for AA lines. + */ + unsigned nr = MAX2( vs->info.num_inputs, + vs->info.num_outputs + 1 ); + + fpme->prim = prim; + fpme->opt = opt; + + /* Always leave room for the vertex header whether we need it or + * not. It's hard to get rid of it in particular because of the + * viewport code in draw_pt_post_vs.c. + */ + fpme->vertex_size = sizeof(struct vertex_header) + nr * 4 * sizeof(float); + + + + draw_pt_fetch_prepare( fpme->fetch, + fpme->vertex_size ); + + /* XXX: it's not really gl rasterization rules we care about here, + * but gl vs dx9 clip spaces. + */ + draw_pt_post_vs_prepare( fpme->post_vs, + (boolean)draw->bypass_clipping, + (boolean)draw->identity_viewport, + (boolean)draw->rasterizer->gl_rasterization_rules ); + + + if (!(opt & PT_PIPELINE)) { + draw_pt_emit_prepare( fpme->emit, + prim, + max_vertices ); + + *max_vertices = MAX2( *max_vertices, + DRAW_PIPE_MAX_VERTICES ); + } + else { + *max_vertices = DRAW_PIPE_MAX_VERTICES; + } + + /* return even number */ + *max_vertices = *max_vertices & ~1; + + /* No need to prepare the shader. + */ + vs->prepare(vs, draw); +} + + + +static void fetch_pipeline_run( struct draw_pt_middle_end *middle, + const unsigned *fetch_elts, + unsigned fetch_count, + const ushort *draw_elts, + unsigned draw_count ) +{ + struct fetch_pipeline_middle_end *fpme = (struct fetch_pipeline_middle_end *)middle; + struct draw_context *draw = fpme->draw; + struct draw_vertex_shader *shader = draw->vs.vertex_shader; + unsigned opt = fpme->opt; + unsigned alloc_count = align( fetch_count, 4 ); + + struct vertex_header *pipeline_verts = + (struct vertex_header *)MALLOC(fpme->vertex_size * alloc_count); + + if (!pipeline_verts) { + /* Not much we can do here - just skip the rendering. + */ + assert(0); + return; + } + + /* Fetch into our vertex buffer + */ + draw_pt_fetch_run( fpme->fetch, + fetch_elts, + fetch_count, + (char *)pipeline_verts ); + + /* Run the shader, note that this overwrites the data[] parts of + * the pipeline verts. If there is no shader, ie a bypass shader, + * then the inputs == outputs, and are already in the correct + * place. + */ + if (opt & PT_SHADE) + { + shader->run_linear(shader, + (const float (*)[4])pipeline_verts->data, + ( float (*)[4])pipeline_verts->data, + (const float (*)[4])draw->pt.user.constants, + fetch_count, + fpme->vertex_size, + fpme->vertex_size); + } + + if (draw_pt_post_vs_run( fpme->post_vs, + pipeline_verts, + fetch_count, + fpme->vertex_size )) + { + opt |= PT_PIPELINE; + } + + /* Do we need to run the pipeline? + */ + if (opt & PT_PIPELINE) { + draw_pipeline_run( fpme->draw, + fpme->prim, + pipeline_verts, + fetch_count, + fpme->vertex_size, + draw_elts, + draw_count ); + } + else { + draw_pt_emit( fpme->emit, + (const float (*)[4])pipeline_verts->data, + fetch_count, + fpme->vertex_size, + draw_elts, + draw_count ); + } + + + FREE(pipeline_verts); +} + + +static void fetch_pipeline_linear_run( struct draw_pt_middle_end *middle, + unsigned start, + unsigned count) +{ + struct fetch_pipeline_middle_end *fpme = (struct fetch_pipeline_middle_end *)middle; + struct draw_context *draw = fpme->draw; + struct draw_vertex_shader *shader = draw->vs.vertex_shader; + unsigned opt = fpme->opt; + unsigned alloc_count = align( count, 4 ); + + struct vertex_header *pipeline_verts = + (struct vertex_header *)MALLOC(fpme->vertex_size * alloc_count); + + if (!pipeline_verts) { + /* Not much we can do here - just skip the rendering. + */ + assert(0); + return; + } + + /* Fetch into our vertex buffer + */ + draw_pt_fetch_run_linear( fpme->fetch, + start, + count, + (char *)pipeline_verts ); + + /* Run the shader, note that this overwrites the data[] parts of + * the pipeline verts. If there is no shader, ie a bypass shader, + * then the inputs == outputs, and are already in the correct + * place. + */ + if (opt & PT_SHADE) + { + shader->run_linear(shader, + (const float (*)[4])pipeline_verts->data, + ( float (*)[4])pipeline_verts->data, + (const float (*)[4])draw->pt.user.constants, + count, + fpme->vertex_size, + fpme->vertex_size); + } + + if (draw_pt_post_vs_run( fpme->post_vs, + pipeline_verts, + count, + fpme->vertex_size )) + { + opt |= PT_PIPELINE; + } + + /* Do we need to run the pipeline? + */ + if (opt & PT_PIPELINE) { + draw_pipeline_run_linear( fpme->draw, + fpme->prim, + pipeline_verts, + count, + fpme->vertex_size); + } + else { + draw_pt_emit_linear( fpme->emit, + (const float (*)[4])pipeline_verts->data, + count, + fpme->vertex_size, + 0, /*start*/ + count ); + } + + FREE(pipeline_verts); +} + + + +static boolean fetch_pipeline_linear_run_elts( struct draw_pt_middle_end *middle, + unsigned start, + unsigned count, + const ushort *draw_elts, + unsigned draw_count ) +{ + struct fetch_pipeline_middle_end *fpme = (struct fetch_pipeline_middle_end *)middle; + struct draw_context *draw = fpme->draw; + struct draw_vertex_shader *shader = draw->vs.vertex_shader; + unsigned opt = fpme->opt; + unsigned alloc_count = align( count, 4 ); + + struct vertex_header *pipeline_verts = + (struct vertex_header *)MALLOC(fpme->vertex_size * alloc_count); + + if (!pipeline_verts) + return FALSE; + + /* Fetch into our vertex buffer + */ + draw_pt_fetch_run_linear( fpme->fetch, + start, + count, + (char *)pipeline_verts ); + + /* Run the shader, note that this overwrites the data[] parts of + * the pipeline verts. If there is no shader, ie a bypass shader, + * then the inputs == outputs, and are already in the correct + * place. + */ + if (opt & PT_SHADE) + { + shader->run_linear(shader, + (const float (*)[4])pipeline_verts->data, + ( float (*)[4])pipeline_verts->data, + (const float (*)[4])draw->pt.user.constants, + count, + fpme->vertex_size, + fpme->vertex_size); + } + + if (draw_pt_post_vs_run( fpme->post_vs, + pipeline_verts, + count, + fpme->vertex_size )) + { + opt |= PT_PIPELINE; + } + + /* Do we need to run the pipeline? + */ + if (opt & PT_PIPELINE) { + draw_pipeline_run( fpme->draw, + fpme->prim, + pipeline_verts, + count, + fpme->vertex_size, + draw_elts, + draw_count ); + } + else { + draw_pt_emit( fpme->emit, + (const float (*)[4])pipeline_verts->data, + count, + fpme->vertex_size, + draw_elts, + draw_count ); + } + + FREE(pipeline_verts); + return TRUE; +} + + + +static void fetch_pipeline_finish( struct draw_pt_middle_end *middle ) +{ + /* nothing to do */ +} + +static void fetch_pipeline_destroy( struct draw_pt_middle_end *middle ) +{ + struct fetch_pipeline_middle_end *fpme = (struct fetch_pipeline_middle_end *)middle; + + if (fpme->fetch) + draw_pt_fetch_destroy( fpme->fetch ); + + if (fpme->emit) + draw_pt_emit_destroy( fpme->emit ); + + if (fpme->post_vs) + draw_pt_post_vs_destroy( fpme->post_vs ); + + FREE(middle); +} + + +struct draw_pt_middle_end *draw_pt_fetch_pipeline_or_emit( struct draw_context *draw ) +{ + struct fetch_pipeline_middle_end *fpme = CALLOC_STRUCT( fetch_pipeline_middle_end ); + if (!fpme) + goto fail; + + fpme->base.prepare = fetch_pipeline_prepare; + fpme->base.run = fetch_pipeline_run; + fpme->base.run_linear = fetch_pipeline_linear_run; + fpme->base.run_linear_elts = fetch_pipeline_linear_run_elts; + fpme->base.finish = fetch_pipeline_finish; + fpme->base.destroy = fetch_pipeline_destroy; + + fpme->draw = draw; + + fpme->fetch = draw_pt_fetch_create( draw ); + if (!fpme->fetch) + goto fail; + + fpme->post_vs = draw_pt_post_vs_create( draw ); + if (!fpme->post_vs) + goto fail; + + fpme->emit = draw_pt_emit_create( draw ); + if (!fpme->emit) + goto fail; + + return &fpme->base; + + fail: + if (fpme) + fetch_pipeline_destroy( &fpme->base ); + + return NULL; +} diff --git a/src/gallium/auxiliary/draw/draw_pt_post_vs.c b/src/gallium/auxiliary/draw/draw_pt_post_vs.c new file mode 100644 index 0000000000..96dc706b99 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt_post_vs.c @@ -0,0 +1,233 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include "util/u_memory.h" +#include "pipe/p_context.h" +#include "draw/draw_context.h" +#include "draw/draw_private.h" +#include "draw/draw_vbuf.h" +#include "draw/draw_vertex.h" +#include "draw/draw_pt.h" + +struct pt_post_vs { + struct draw_context *draw; + + boolean (*run)( struct pt_post_vs *pvs, + struct vertex_header *vertices, + unsigned count, + unsigned stride ); +}; + + + +static INLINE float +dot4(const float *a, const float *b) +{ + return (a[0]*b[0] + + a[1]*b[1] + + a[2]*b[2] + + a[3]*b[3]); +} + + + +static INLINE unsigned +compute_clipmask_gl(const float *clip, /*const*/ float plane[][4], unsigned nr) +{ + unsigned mask = 0x0; + unsigned i; + +#if 0 + debug_printf("compute clipmask %f %f %f %f\n", + clip[0], clip[1], clip[2], clip[3]); + assert(clip[3] != 0.0); +#endif + + /* Do the hardwired planes first: + */ + if (-clip[0] + clip[3] < 0) mask |= (1<<0); + if ( clip[0] + clip[3] < 0) mask |= (1<<1); + if (-clip[1] + clip[3] < 0) mask |= (1<<2); + if ( clip[1] + clip[3] < 0) mask |= (1<<3); + if ( clip[2] + clip[3] < 0) mask |= (1<<4); /* match mesa clipplane numbering - for now */ + if (-clip[2] + clip[3] < 0) mask |= (1<<5); /* match mesa clipplane numbering - for now */ + + /* Followed by any remaining ones: + */ + for (i = 6; i < nr; i++) { + if (dot4(clip, plane[i]) < 0) + mask |= (1<<i); + } + + return mask; +} + + +/* The normal case - cliptest, rhw divide, viewport transform. + * + * Also handle identity viewport here at the expense of a few wasted + * instructions + */ +static boolean post_vs_cliptest_viewport_gl( struct pt_post_vs *pvs, + struct vertex_header *vertices, + unsigned count, + unsigned stride ) +{ + struct vertex_header *out = vertices; + const float *scale = pvs->draw->viewport.scale; + const float *trans = pvs->draw->viewport.translate; + const unsigned pos = pvs->draw->vs.position_output; + unsigned clipped = 0; + unsigned j; + + if (0) debug_printf("%s\n"); + + for (j = 0; j < count; j++) { + float *position = out->data[pos]; + + out->clip[0] = position[0]; + out->clip[1] = position[1]; + out->clip[2] = position[2]; + out->clip[3] = position[3]; + + out->vertex_id = 0xffff; + out->clipmask = compute_clipmask_gl(out->clip, + pvs->draw->plane, + pvs->draw->nr_planes); + clipped += out->clipmask; + + if (out->clipmask == 0) + { + /* divide by w */ + float w = 1.0f / position[3]; + + /* Viewport mapping */ + position[0] = position[0] * w * scale[0] + trans[0]; + position[1] = position[1] * w * scale[1] + trans[1]; + position[2] = position[2] * w * scale[2] + trans[2]; + position[3] = w; +#if 0 + debug_printf("post viewport: %f %f %f %f\n", + position[0], + position[1], + position[2], + position[3]); +#endif + } + + out = (struct vertex_header *)( (char *)out + stride ); + } + + return clipped != 0; +} + + + +/* If bypass_clipping is set, skip cliptest and rhw divide. + */ +static boolean post_vs_viewport( struct pt_post_vs *pvs, + struct vertex_header *vertices, + unsigned count, + unsigned stride ) +{ + struct vertex_header *out = vertices; + const float *scale = pvs->draw->viewport.scale; + const float *trans = pvs->draw->viewport.translate; + const unsigned pos = pvs->draw->vs.position_output; + unsigned j; + + if (0) debug_printf("%s\n", __FUNCTION__); + for (j = 0; j < count; j++) { + float *position = out->data[pos]; + + /* Viewport mapping only, no cliptest/rhw divide + */ + position[0] = position[0] * scale[0] + trans[0]; + position[1] = position[1] * scale[1] + trans[1]; + position[2] = position[2] * scale[2] + trans[2]; + + out = (struct vertex_header *)((char *)out + stride); + } + + return FALSE; +} + + +/* If bypass_clipping is set and we have an identity viewport, nothing + * to do. + */ +static boolean post_vs_none( struct pt_post_vs *pvs, + struct vertex_header *vertices, + unsigned count, + unsigned stride ) +{ + if (0) debug_printf("%s\n", __FUNCTION__); + return FALSE; +} + +boolean draw_pt_post_vs_run( struct pt_post_vs *pvs, + struct vertex_header *pipeline_verts, + unsigned count, + unsigned stride ) +{ + return pvs->run( pvs, pipeline_verts, count, stride ); +} + + +void draw_pt_post_vs_prepare( struct pt_post_vs *pvs, + boolean bypass_clipping, + boolean identity_viewport, + boolean opengl ) +{ + if (bypass_clipping) { + if (identity_viewport) + pvs->run = post_vs_none; + else + pvs->run = post_vs_viewport; + } + else { + //if (opengl) + pvs->run = post_vs_cliptest_viewport_gl; + } +} + + +struct pt_post_vs *draw_pt_post_vs_create( struct draw_context *draw ) +{ + struct pt_post_vs *pvs = CALLOC_STRUCT( pt_post_vs ); + if (!pvs) + return NULL; + + pvs->draw = draw; + + return pvs; +} + +void draw_pt_post_vs_destroy( struct pt_post_vs *pvs ) +{ + FREE(pvs); +} diff --git a/src/gallium/auxiliary/draw/draw_pt_util.c b/src/gallium/auxiliary/draw/draw_pt_util.c new file mode 100644 index 0000000000..3bc7939c55 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt_util.c @@ -0,0 +1,102 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "draw/draw_context.h" +#include "draw/draw_private.h" +#include "draw/draw_pt.h" + +void draw_pt_split_prim(unsigned prim, unsigned *first, unsigned *incr) +{ + switch (prim) { + case PIPE_PRIM_POINTS: + *first = 1; + *incr = 1; + break; + case PIPE_PRIM_LINES: + *first = 2; + *incr = 2; + break; + case PIPE_PRIM_LINE_STRIP: + case PIPE_PRIM_LINE_LOOP: + *first = 2; + *incr = 1; + break; + case PIPE_PRIM_TRIANGLES: + *first = 3; + *incr = 3; + break; + case PIPE_PRIM_TRIANGLE_STRIP: + case PIPE_PRIM_TRIANGLE_FAN: + case PIPE_PRIM_POLYGON: + *first = 3; + *incr = 1; + break; + case PIPE_PRIM_QUADS: + *first = 4; + *incr = 4; + break; + case PIPE_PRIM_QUAD_STRIP: + *first = 4; + *incr = 2; + break; + default: + assert(0); + *first = 0; + *incr = 1; /* set to one so that count % incr works */ + break; + } +} + + +unsigned draw_pt_reduced_prim(unsigned prim) +{ + switch (prim) { + case PIPE_PRIM_POINTS: + return PIPE_PRIM_POINTS; + case PIPE_PRIM_LINES: + case PIPE_PRIM_LINE_STRIP: + case PIPE_PRIM_LINE_LOOP: + return PIPE_PRIM_LINES; + case PIPE_PRIM_TRIANGLES: + case PIPE_PRIM_TRIANGLE_STRIP: + case PIPE_PRIM_TRIANGLE_FAN: + case PIPE_PRIM_POLYGON: + case PIPE_PRIM_QUADS: + case PIPE_PRIM_QUAD_STRIP: + return PIPE_PRIM_TRIANGLES; + default: + assert(0); + return PIPE_PRIM_POINTS; + } +} + + diff --git a/src/gallium/auxiliary/draw/draw_pt_varray.c b/src/gallium/auxiliary/draw/draw_pt_varray.c new file mode 100644 index 0000000000..c15afe65f1 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt_varray.c @@ -0,0 +1,193 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include "util/u_math.h" +#include "util/u_memory.h" + +#include "draw/draw_context.h" +#include "draw/draw_private.h" +#include "draw/draw_pt.h" + +#define FETCH_MAX 256 +#define DRAW_MAX (FETCH_MAX+8) + +struct varray_frontend { + struct draw_pt_front_end base; + struct draw_context *draw; + + ushort draw_elts[DRAW_MAX]; + unsigned fetch_elts[FETCH_MAX]; + + unsigned driver_fetch_max; + unsigned fetch_max; + + struct draw_pt_middle_end *middle; + + unsigned input_prim; + unsigned output_prim; +}; + + +static void varray_flush_linear(struct varray_frontend *varray, + unsigned start, unsigned count) +{ + if (count) { + assert(varray->middle->run_linear); + varray->middle->run_linear(varray->middle, start, count); + } +} + +static void varray_line_loop_segment(struct varray_frontend *varray, + unsigned start, + unsigned segment_start, + unsigned segment_count, + boolean end ) +{ + assert(segment_count+1 < varray->fetch_max); + if (segment_count >= 1) { + unsigned nr = 0, i; + + for (i = 0; i < segment_count; i++) + varray->fetch_elts[nr++] = start + segment_start + i; + + if (end) + varray->fetch_elts[nr++] = start; + + assert(nr < FETCH_MAX); + + varray->middle->run(varray->middle, + varray->fetch_elts, + nr, + varray->draw_elts, /* ie. linear */ + nr); + } +} + + + +static void varray_fan_segment(struct varray_frontend *varray, + unsigned start, + unsigned segment_start, + unsigned segment_count ) +{ + assert(segment_count+1 < varray->fetch_max); + if (segment_count >= 2) { + unsigned nr = 0, i; + + if (segment_start != 0) + varray->fetch_elts[nr++] = start; + + for (i = 0 ; i < segment_count; i++) + varray->fetch_elts[nr++] = start + segment_start + i; + + assert(nr < FETCH_MAX); + + varray->middle->run(varray->middle, + varray->fetch_elts, + nr, + varray->draw_elts, /* ie. linear */ + nr); + } +} + + + + +#define FUNC varray_run +#include "draw_pt_varray_tmp_linear.h" + +static unsigned decompose_prim[PIPE_PRIM_POLYGON + 1] = { + PIPE_PRIM_POINTS, + PIPE_PRIM_LINES, + PIPE_PRIM_LINE_STRIP, /* decomposed LINELOOP */ + PIPE_PRIM_LINE_STRIP, + PIPE_PRIM_TRIANGLES, + PIPE_PRIM_TRIANGLE_STRIP, + PIPE_PRIM_TRIANGLE_FAN, + PIPE_PRIM_QUADS, + PIPE_PRIM_QUAD_STRIP, + PIPE_PRIM_POLYGON +}; + + + +static void varray_prepare(struct draw_pt_front_end *frontend, + unsigned prim, + struct draw_pt_middle_end *middle, + unsigned opt) +{ + struct varray_frontend *varray = (struct varray_frontend *)frontend; + + varray->base.run = varray_run; + + varray->input_prim = prim; + varray->output_prim = decompose_prim[prim]; + + varray->middle = middle; + middle->prepare(middle, varray->output_prim, opt, &varray->driver_fetch_max ); + + /* check that the max is even */ + assert((varray->driver_fetch_max & 1) == 0); + + varray->fetch_max = MIN2(FETCH_MAX, varray->driver_fetch_max); +} + + + + +static void varray_finish(struct draw_pt_front_end *frontend) +{ + struct varray_frontend *varray = (struct varray_frontend *)frontend; + varray->middle->finish(varray->middle); + varray->middle = NULL; +} + +static void varray_destroy(struct draw_pt_front_end *frontend) +{ + FREE(frontend); +} + + +struct draw_pt_front_end *draw_pt_varray(struct draw_context *draw) +{ + ushort i; + struct varray_frontend *varray = CALLOC_STRUCT(varray_frontend); + if (varray == NULL) + return NULL; + + varray->base.prepare = varray_prepare; + varray->base.run = NULL; + varray->base.finish = varray_finish; + varray->base.destroy = varray_destroy; + varray->draw = draw; + + for (i = 0; i < DRAW_MAX; i++) { + varray->draw_elts[i] = i; + } + + return &varray->base; +} diff --git a/src/gallium/auxiliary/draw/draw_pt_varray_tmp.h b/src/gallium/auxiliary/draw/draw_pt_varray_tmp.h new file mode 100644 index 0000000000..7c722457c3 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt_varray_tmp.h @@ -0,0 +1,238 @@ + +static void FUNC(struct draw_pt_front_end *frontend, + pt_elt_func get_elt, + const void *elts, + unsigned count) +{ + struct varray_frontend *varray = (struct varray_frontend *)frontend; + struct draw_context *draw = varray->draw; + unsigned start = (unsigned)elts; + + boolean flatfirst = (draw->rasterizer->flatshade && + draw->rasterizer->flatshade_first); + unsigned i, j; + ushort flags; + unsigned first, incr; + + varray->fetch_start = start; + + draw_pt_split_prim(varray->input_prim, &first, &incr); + +#if 0 + debug_printf("%s (%d) %d/%d\n", __FUNCTION__, + varray->input_prim, + start, count); +#endif + + switch (varray->input_prim) { + case PIPE_PRIM_POINTS: + for (j = 0; j + first <= count; j += i) { + unsigned end = MIN2(FETCH_MAX, count - j); + end -= (end % incr); + for (i = 0; i < end; i++) { + POINT(varray, i + 0); + } + i = end; + fetch_init(varray, end); + varray_flush(varray); + } + break; + + case PIPE_PRIM_LINES: + for (j = 0; j + first <= count; j += i) { + unsigned end = MIN2(FETCH_MAX, count - j); + end -= (end % incr); + for (i = 0; i+1 < end; i += 2) { + LINE(varray, DRAW_PIPE_RESET_STIPPLE, + i + 0, i + 1); + } + i = end; + fetch_init(varray, end); + varray_flush(varray); + } + break; + + case PIPE_PRIM_LINE_LOOP: + if (count >= 2) { + flags = DRAW_PIPE_RESET_STIPPLE; + + for (j = 0; j + first <= count; j += i) { + unsigned end = MIN2(FETCH_MAX, count - j); + end -= (end % incr); + for (i = 1; i < end; i++, flags = 0) { + LINE(varray, flags, i - 1, i); + } + LINE(varray, flags, i - 1, 0); + i = end; + fetch_init(varray, end); + varray_flush(varray); + } + } + break; + + case PIPE_PRIM_LINE_STRIP: + flags = DRAW_PIPE_RESET_STIPPLE; + for (j = 0; j + first <= count; j += i) { + unsigned end = MIN2(FETCH_MAX, count - j); + end -= (end % incr); + for (i = 1; i < end; i++, flags = 0) { + LINE(varray, flags, i - 1, i); + } + i = end; + fetch_init(varray, end); + varray_flush(varray); + } + break; + + case PIPE_PRIM_TRIANGLES: + for (j = 0; j + first <= count; j += i) { + unsigned end = MIN2(FETCH_MAX, count - j); + end -= (end % incr); + for (i = 0; i+2 < end; i += 3) { + TRIANGLE(varray, DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + i + 0, i + 1, i + 2); + } + i = end; + fetch_init(varray, end); + varray_flush(varray); + } + break; + + case PIPE_PRIM_TRIANGLE_STRIP: + if (flatfirst) { + for (j = 0; j + first <= count; j += i) { + unsigned end = MIN2(FETCH_MAX, count - j); + end -= (end % incr); + for (i = 0; i+2 < end; i++) { + TRIANGLE(varray, DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + i + 0, i + 1 + (i&1), i + 2 - (i&1)); + } + i = end; + fetch_init(varray, end); + varray_flush(varray); + if (j + first + i <= count) { + varray->fetch_start -= 2; + i -= 2; + } + } + } + else { + for (j = 0; j + first <= count; j += i) { + unsigned end = MIN2(FETCH_MAX, count - j); + end -= (end % incr); + for (i = 0; i + 2 < end; i++) { + TRIANGLE(varray, DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + i + 0 + (i&1), i + 1 - (i&1), i + 2); + } + i = end; + fetch_init(varray, end); + varray_flush(varray); + if (j + first + i <= count) { + varray->fetch_start -= 2; + i -= 2; + } + } + } + break; + + case PIPE_PRIM_TRIANGLE_FAN: + if (count >= 3) { + if (flatfirst) { + flags = DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL; + for (j = 0; j + first <= count; j += i) { + unsigned end = MIN2(FETCH_MAX, count - j); + end -= (end % incr); + for (i = 0; i+2 < end; i++) { + TRIANGLE(varray, flags, i + 1, i + 2, 0); + } + i = end; + fetch_init(varray, end); + varray_flush(varray); + } + } + else { + flags = DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL; + for (j = 0; j + first <= count; j += i) { + unsigned end = MIN2(FETCH_MAX, count - j); + end -= (end % incr); + for (i = 0; i+2 < end; i++) { + TRIANGLE(varray, flags, 0, i + 1, i + 2); + } + i = end; + fetch_init(varray, end); + varray_flush(varray); + } + } + } + break; + + case PIPE_PRIM_QUADS: + for (j = 0; j + first <= count; j += i) { + unsigned end = MIN2(FETCH_MAX, count - j); + end -= (end % incr); + for (i = 0; i+3 < end; i += 4) { + QUAD(varray, i + 0, i + 1, i + 2, i + 3); + } + i = end; + fetch_init(varray, end); + varray_flush(varray); + } + break; + + case PIPE_PRIM_QUAD_STRIP: + for (j = 0; j + first <= count; j += i) { + unsigned end = MIN2(FETCH_MAX, count - j); + end -= (end % incr); + for (i = 0; i+3 < end; i += 2) { + QUAD(varray, i + 2, i + 0, i + 1, i + 3); + } + i = end; + fetch_init(varray, end); + varray_flush(varray); + if (j + first + i <= count) { + varray->fetch_start -= 2; + i -= 2; + } + } + break; + + case PIPE_PRIM_POLYGON: + { + /* These bitflags look a little odd because we submit the + * vertices as (1,2,0) to satisfy flatshade requirements. + */ + const ushort edge_first = DRAW_PIPE_EDGE_FLAG_2; + const ushort edge_middle = DRAW_PIPE_EDGE_FLAG_0; + const ushort edge_last = DRAW_PIPE_EDGE_FLAG_1; + + flags = DRAW_PIPE_RESET_STIPPLE | edge_first | edge_middle; + for (j = 0; j + first <= count; j += i) { + unsigned end = MIN2(FETCH_MAX, count - j); + end -= (end % incr); + for (i = 0; i+2 < end; i++, flags = edge_middle) { + + if (i + 3 == count) + flags |= edge_last; + + TRIANGLE(varray, flags, i + 1, i + 2, 0); + } + i = end; + fetch_init(varray, end); + varray_flush(varray); + } + } + break; + + default: + assert(0); + break; + } + + varray_flush(varray); +} + +#undef TRIANGLE +#undef QUAD +#undef POINT +#undef LINE +#undef FUNC diff --git a/src/gallium/auxiliary/draw/draw_pt_varray_tmp_linear.h b/src/gallium/auxiliary/draw/draw_pt_varray_tmp_linear.h new file mode 100644 index 0000000000..55a8e6521d --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt_varray_tmp_linear.h @@ -0,0 +1,91 @@ +static unsigned trim( unsigned count, unsigned first, unsigned incr ) +{ + return count - (count - first) % incr; +} + +static void FUNC(struct draw_pt_front_end *frontend, + pt_elt_func get_elt, + const void *elts, + unsigned count) +{ + struct varray_frontend *varray = (struct varray_frontend *)frontend; + unsigned start = (unsigned)elts; + + unsigned j; + unsigned first, incr; + + draw_pt_split_prim(varray->input_prim, &first, &incr); + + /* Sanitize primitive length: + */ + count = trim(count, first, incr); + if (count < first) + return; + +#if 0 + debug_printf("%s (%d) %d/%d\n", __FUNCTION__, + varray->input_prim, + start, count); +#endif + + switch (varray->input_prim) { + case PIPE_PRIM_POINTS: + case PIPE_PRIM_LINES: + case PIPE_PRIM_TRIANGLES: + case PIPE_PRIM_LINE_STRIP: + case PIPE_PRIM_TRIANGLE_STRIP: + case PIPE_PRIM_QUADS: + case PIPE_PRIM_QUAD_STRIP: + for (j = 0; j < count;) { + unsigned remaining = count - j; + unsigned nr = trim( MIN2(varray->driver_fetch_max, remaining), first, incr ); + varray_flush_linear(varray, start + j, nr); + j += nr; + if (nr != remaining) + j -= (first - incr); + } + break; + + case PIPE_PRIM_LINE_LOOP: + /* Always have to decompose as we've stated that this will be + * emitted as a line-strip. + */ + for (j = 0; j < count;) { + unsigned remaining = count - j; + unsigned nr = trim( MIN2(varray->fetch_max-1, remaining), first, incr ); + varray_line_loop_segment(varray, start, j, nr, nr == remaining); + j += nr; + if (nr != remaining) + j -= (first - incr); + } + break; + + + case PIPE_PRIM_POLYGON: + case PIPE_PRIM_TRIANGLE_FAN: + if (count < varray->driver_fetch_max) { + varray_flush_linear(varray, start, count); + } + else { + for ( j = 0; j < count;) { + unsigned remaining = count - j; + unsigned nr = trim( MIN2(varray->fetch_max-1, remaining), first, incr ); + varray_fan_segment(varray, start, j, nr); + j += nr; + if (nr != remaining) + j -= (first - incr); + } + } + break; + + default: + assert(0); + break; + } +} + +#undef TRIANGLE +#undef QUAD +#undef POINT +#undef LINE +#undef FUNC diff --git a/src/gallium/auxiliary/draw/draw_pt_vcache.c b/src/gallium/auxiliary/draw/draw_pt_vcache.c new file mode 100644 index 0000000000..e8467b2ae3 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt_vcache.c @@ -0,0 +1,479 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "util/u_memory.h" +#include "draw/draw_context.h" +#include "draw/draw_private.h" +#include "draw/draw_pt.h" + + +#define CACHE_MAX 256 +#define FETCH_MAX 256 +#define DRAW_MAX (16*1024) + +struct vcache_frontend { + struct draw_pt_front_end base; + struct draw_context *draw; + + unsigned in[CACHE_MAX]; + ushort out[CACHE_MAX]; + + ushort draw_elts[DRAW_MAX]; + unsigned fetch_elts[FETCH_MAX]; + + unsigned draw_count; + unsigned fetch_count; + unsigned fetch_max; + + struct draw_pt_middle_end *middle; + + unsigned input_prim; + unsigned output_prim; + + unsigned middle_prim; + unsigned opt; +}; + +static void vcache_flush( struct vcache_frontend *vcache ) +{ + if (vcache->middle_prim != vcache->output_prim) { + vcache->middle_prim = vcache->output_prim; + vcache->middle->prepare( vcache->middle, + vcache->middle_prim, + vcache->opt, + &vcache->fetch_max ); + } + + if (vcache->draw_count) { + vcache->middle->run( vcache->middle, + vcache->fetch_elts, + vcache->fetch_count, + vcache->draw_elts, + vcache->draw_count ); + } + + memset(vcache->in, ~0, sizeof(vcache->in)); + vcache->fetch_count = 0; + vcache->draw_count = 0; +} + +static void vcache_check_flush( struct vcache_frontend *vcache ) +{ + if ( vcache->draw_count + 6 >= DRAW_MAX || + vcache->fetch_count + 4 >= FETCH_MAX ) + { + vcache_flush( vcache ); + } +} + + +static INLINE void vcache_elt( struct vcache_frontend *vcache, + unsigned felt, + ushort flags ) +{ + unsigned idx = felt % CACHE_MAX; + + if (vcache->in[idx] != felt) { + assert(vcache->fetch_count < FETCH_MAX); + + vcache->in[idx] = felt; + vcache->out[idx] = (ushort)vcache->fetch_count; + vcache->fetch_elts[vcache->fetch_count++] = felt; + } + + vcache->draw_elts[vcache->draw_count++] = vcache->out[idx] | flags; +} + + + +static void vcache_triangle( struct vcache_frontend *vcache, + unsigned i0, + unsigned i1, + unsigned i2 ) +{ + vcache_elt(vcache, i0, 0); + vcache_elt(vcache, i1, 0); + vcache_elt(vcache, i2, 0); + vcache_check_flush(vcache); +} + + +static void vcache_triangle_flags( struct vcache_frontend *vcache, + ushort flags, + unsigned i0, + unsigned i1, + unsigned i2 ) +{ + vcache_elt(vcache, i0, flags); + vcache_elt(vcache, i1, 0); + vcache_elt(vcache, i2, 0); + vcache_check_flush(vcache); +} + +static void vcache_line( struct vcache_frontend *vcache, + unsigned i0, + unsigned i1 ) +{ + vcache_elt(vcache, i0, 0); + vcache_elt(vcache, i1, 0); + vcache_check_flush(vcache); +} + + +static void vcache_line_flags( struct vcache_frontend *vcache, + ushort flags, + unsigned i0, + unsigned i1 ) +{ + vcache_elt(vcache, i0, flags); + vcache_elt(vcache, i1, 0); + vcache_check_flush(vcache); +} + + +static void vcache_point( struct vcache_frontend *vcache, + unsigned i0 ) +{ + vcache_elt(vcache, i0, 0); + vcache_check_flush(vcache); +} + +static void vcache_quad( struct vcache_frontend *vcache, + unsigned i0, + unsigned i1, + unsigned i2, + unsigned i3 ) +{ + vcache_triangle( vcache, i0, i1, i3 ); + vcache_triangle( vcache, i1, i2, i3 ); +} + +static void vcache_ef_quad( struct vcache_frontend *vcache, + unsigned i0, + unsigned i1, + unsigned i2, + unsigned i3 ) +{ + vcache_triangle_flags( vcache, + ( DRAW_PIPE_RESET_STIPPLE | + DRAW_PIPE_EDGE_FLAG_0 | + DRAW_PIPE_EDGE_FLAG_2 ), + i0, i1, i3 ); + + vcache_triangle_flags( vcache, + ( DRAW_PIPE_EDGE_FLAG_0 | + DRAW_PIPE_EDGE_FLAG_1 ), + i1, i2, i3 ); +} + +/* At least for now, we're back to using a template include file for + * this. The two paths aren't too different though - it may be + * possible to reunify them. + */ +#define TRIANGLE(vc,flags,i0,i1,i2) vcache_triangle_flags(vc,flags,i0,i1,i2) +#define QUAD(vc,i0,i1,i2,i3) vcache_ef_quad(vc,i0,i1,i2,i3) +#define LINE(vc,flags,i0,i1) vcache_line_flags(vc,flags,i0,i1) +#define POINT(vc,i0) vcache_point(vc,i0) +#define FUNC vcache_run_extras +#include "draw_pt_vcache_tmp.h" + +#define TRIANGLE(vc,flags,i0,i1,i2) vcache_triangle(vc,i0,i1,i2) +#define QUAD(vc,i0,i1,i2,i3) vcache_quad(vc,i0,i1,i2,i3) +#define LINE(vc,flags,i0,i1) vcache_line(vc,i0,i1) +#define POINT(vc,i0) vcache_point(vc,i0) +#define FUNC vcache_run +#include "draw_pt_vcache_tmp.h" + +static void rebase_uint_elts( const unsigned *src, + unsigned count, + int delta, + ushort *dest ) +{ + unsigned i; + + for (i = 0; i < count; i++) + dest[i] = (ushort)(src[i] + delta); +} + +static void rebase_ushort_elts( const ushort *src, + unsigned count, + int delta, + ushort *dest ) +{ + unsigned i; + + for (i = 0; i < count; i++) + dest[i] = (ushort)(src[i] + delta); +} + +static void rebase_ubyte_elts( const ubyte *src, + unsigned count, + int delta, + ushort *dest ) +{ + unsigned i; + + for (i = 0; i < count; i++) + dest[i] = (ushort)(src[i] + delta); +} + + + +static void translate_uint_elts( const unsigned *src, + unsigned count, + ushort *dest ) +{ + unsigned i; + + for (i = 0; i < count; i++) + dest[i] = (ushort)(src[i]); +} + +static void translate_ushort_elts( const ushort *src, + unsigned count, + ushort *dest ) +{ + unsigned i; + + for (i = 0; i < count; i++) + dest[i] = (ushort)(src[i]); +} + +static void translate_ubyte_elts( const ubyte *src, + unsigned count, + ushort *dest ) +{ + unsigned i; + + for (i = 0; i < count; i++) + dest[i] = (ushort)(src[i]); +} + + + + +#if 0 +static enum pipe_format format_from_get_elt( pt_elt_func get_elt ) +{ + switch (draw->pt.user.eltSize) { + case 1: return PIPE_FORMAT_R8_UNORM; + case 2: return PIPE_FORMAT_R16_UNORM; + case 4: return PIPE_FORMAT_R32_UNORM; + default: return PIPE_FORMAT_NONE; + } +} +#endif + +static void vcache_check_run( struct draw_pt_front_end *frontend, + pt_elt_func get_elt, + const void *elts, + unsigned draw_count ) +{ + struct vcache_frontend *vcache = (struct vcache_frontend *)frontend; + struct draw_context *draw = vcache->draw; + unsigned min_index = draw->pt.user.min_index; + unsigned max_index = draw->pt.user.max_index; + unsigned index_size = draw->pt.user.eltSize; + unsigned fetch_count = max_index + 1 - min_index; + const ushort *transformed_elts; + ushort *storage = NULL; + boolean ok; + + + if (0) debug_printf("fetch_count %d fetch_max %d draw_count %d\n", fetch_count, + vcache->fetch_max, + draw_count); + + if (max_index == 0xffffffff || + fetch_count > draw_count) { + if (0) debug_printf("fail\n"); + goto fail; + } + + if (vcache->middle_prim != vcache->input_prim) { + vcache->middle_prim = vcache->input_prim; + vcache->middle->prepare( vcache->middle, + vcache->middle_prim, + vcache->opt, + &vcache->fetch_max ); + } + + + if (min_index == 0 && + index_size == 2) + { + transformed_elts = (const ushort *)elts; + } + else + { + storage = MALLOC( draw_count * sizeof(ushort) ); + if (!storage) + goto fail; + + if (min_index == 0) { + switch(index_size) { + case 1: + translate_ubyte_elts( (const ubyte *)elts, + draw_count, + storage ); + break; + + case 2: + translate_ushort_elts( (const ushort *)elts, + draw_count, + storage ); + break; + + case 4: + translate_uint_elts( (const uint *)elts, + draw_count, + storage ); + break; + + default: + assert(0); + return; + } + } + else { + switch(index_size) { + case 1: + rebase_ubyte_elts( (const ubyte *)elts, + draw_count, + 0 - (int)min_index, + storage ); + break; + + case 2: + rebase_ushort_elts( (const ushort *)elts, + draw_count, + 0 - (int)min_index, + storage ); + break; + + case 4: + rebase_uint_elts( (const uint *)elts, + draw_count, + 0 - (int)min_index, + storage ); + break; + + default: + assert(0); + return; + } + } + transformed_elts = storage; + } + + ok = vcache->middle->run_linear_elts( vcache->middle, + min_index, /* start */ + fetch_count, + transformed_elts, + draw_count ); + + FREE(storage); + + if (ok) + return; + + debug_printf("failed to execute atomic draw elts for %d/%d, splitting up\n", + fetch_count, draw_count); + + fail: + vcache_run( frontend, get_elt, elts, draw_count ); +} + + + + +static void vcache_prepare( struct draw_pt_front_end *frontend, + unsigned prim, + struct draw_pt_middle_end *middle, + unsigned opt ) +{ + struct vcache_frontend *vcache = (struct vcache_frontend *)frontend; + + if (opt & PT_PIPELINE) + { + vcache->base.run = vcache_run_extras; + } + else + { + vcache->base.run = vcache_check_run; + } + + vcache->input_prim = prim; + vcache->output_prim = draw_pt_reduced_prim(prim); + + vcache->middle = middle; + vcache->opt = opt; + + /* Have to run prepare here, but try and guess a good prim for + * doing so: + */ + vcache->middle_prim = (opt & PT_PIPELINE) ? vcache->output_prim : vcache->input_prim; + middle->prepare( middle, vcache->middle_prim, opt, &vcache->fetch_max ); +} + + + + +static void vcache_finish( struct draw_pt_front_end *frontend ) +{ + struct vcache_frontend *vcache = (struct vcache_frontend *)frontend; + vcache->middle->finish( vcache->middle ); + vcache->middle = NULL; +} + +static void vcache_destroy( struct draw_pt_front_end *frontend ) +{ + FREE(frontend); +} + + +struct draw_pt_front_end *draw_pt_vcache( struct draw_context *draw ) +{ + struct vcache_frontend *vcache = CALLOC_STRUCT( vcache_frontend ); + if (vcache == NULL) + return NULL; + + vcache->base.prepare = vcache_prepare; + vcache->base.run = NULL; + vcache->base.finish = vcache_finish; + vcache->base.destroy = vcache_destroy; + vcache->draw = draw; + + memset(vcache->in, ~0, sizeof(vcache->in)); + + return &vcache->base; +} diff --git a/src/gallium/auxiliary/draw/draw_pt_vcache_tmp.h b/src/gallium/auxiliary/draw/draw_pt_vcache_tmp.h new file mode 100644 index 0000000000..ec05bbeab4 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt_vcache_tmp.h @@ -0,0 +1,177 @@ + + +static void FUNC( struct draw_pt_front_end *frontend, + pt_elt_func get_elt, + const void *elts, + unsigned count ) +{ + struct vcache_frontend *vcache = (struct vcache_frontend *)frontend; + struct draw_context *draw = vcache->draw; + + boolean flatfirst = (draw->rasterizer->flatshade && + draw->rasterizer->flatshade_first); + unsigned i; + ushort flags; + + if (0) debug_printf("%s %d\n", __FUNCTION__, count); + + + switch (vcache->input_prim) { + case PIPE_PRIM_POINTS: + for (i = 0; i < count; i ++) { + POINT( vcache, + get_elt(elts, i + 0) ); + } + break; + + case PIPE_PRIM_LINES: + for (i = 0; i+1 < count; i += 2) { + LINE( vcache, + DRAW_PIPE_RESET_STIPPLE, + get_elt(elts, i + 0), + get_elt(elts, i + 1)); + } + break; + + case PIPE_PRIM_LINE_LOOP: + if (count >= 2) { + flags = DRAW_PIPE_RESET_STIPPLE; + + for (i = 1; i < count; i++, flags = 0) { + LINE( vcache, + flags, + get_elt(elts, i - 1), + get_elt(elts, i )); + } + + LINE( vcache, + flags, + get_elt(elts, i - 1), + get_elt(elts, 0 )); + } + break; + + case PIPE_PRIM_LINE_STRIP: + flags = DRAW_PIPE_RESET_STIPPLE; + for (i = 1; i < count; i++, flags = 0) { + LINE( vcache, + flags, + get_elt(elts, i - 1), + get_elt(elts, i )); + } + break; + + case PIPE_PRIM_TRIANGLES: + for (i = 0; i+2 < count; i += 3) { + TRIANGLE( vcache, + DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + get_elt(elts, i + 0), + get_elt(elts, i + 1), + get_elt(elts, i + 2 )); + } + break; + + case PIPE_PRIM_TRIANGLE_STRIP: + if (flatfirst) { + for (i = 0; i+2 < count; i++) { + TRIANGLE( vcache, + DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + get_elt(elts, i + 0), + get_elt(elts, i + 1 + (i&1)), + get_elt(elts, i + 2 - (i&1))); + } + } + else { + for (i = 0; i+2 < count; i++) { + TRIANGLE( vcache, + DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + get_elt(elts, i + 0 + (i&1)), + get_elt(elts, i + 1 - (i&1)), + get_elt(elts, i + 2 )); + } + } + break; + + case PIPE_PRIM_TRIANGLE_FAN: + if (count >= 3) { + if (flatfirst) { + for (i = 0; i+2 < count; i++) { + TRIANGLE( vcache, + DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + get_elt(elts, i + 1), + get_elt(elts, i + 2), + get_elt(elts, 0 )); + } + } + else { + for (i = 0; i+2 < count; i++) { + TRIANGLE( vcache, + DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + get_elt(elts, 0), + get_elt(elts, i + 1), + get_elt(elts, i + 2 )); + } + } + } + break; + + + case PIPE_PRIM_QUADS: + for (i = 0; i+3 < count; i += 4) { + QUAD( vcache, + get_elt(elts, i + 0), + get_elt(elts, i + 1), + get_elt(elts, i + 2), + get_elt(elts, i + 3)); + } + break; + + case PIPE_PRIM_QUAD_STRIP: + for (i = 0; i+3 < count; i += 2) { + QUAD( vcache, + get_elt(elts, i + 2), + get_elt(elts, i + 0), + get_elt(elts, i + 1), + get_elt(elts, i + 3)); + } + break; + + case PIPE_PRIM_POLYGON: + { + /* These bitflags look a little odd because we submit the + * vertices as (1,2,0) to satisfy flatshade requirements. + */ + const ushort edge_first = DRAW_PIPE_EDGE_FLAG_2; + const ushort edge_middle = DRAW_PIPE_EDGE_FLAG_0; + const ushort edge_last = DRAW_PIPE_EDGE_FLAG_1; + + flags = DRAW_PIPE_RESET_STIPPLE | edge_first | edge_middle; + + for (i = 0; i+2 < count; i++, flags = edge_middle) { + + if (i + 3 == count) + flags |= edge_last; + + TRIANGLE( vcache, + flags, + get_elt(elts, i + 1), + get_elt(elts, i + 2), + get_elt(elts, 0)); + } + } + break; + + default: + assert(0); + break; + } + + vcache_flush( vcache ); +} + + +#undef TRIANGLE +#undef QUAD +#undef POINT +#undef LINE +#undef FUNC diff --git a/src/gallium/auxiliary/draw/draw_vbuf.h b/src/gallium/auxiliary/draw/draw_vbuf.h new file mode 100644 index 0000000000..b0aa2df309 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_vbuf.h @@ -0,0 +1,113 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * \file + * Vertex buffer drawing stage. + * + * \author Keith Whitwell <keith@tungstengraphics.com> + * \author José Fonseca <jrfonsec@tungstengraphics.com> + */ + +#ifndef DRAW_VBUF_H_ +#define DRAW_VBUF_H_ + + + +struct draw_context; +struct vertex_info; + + +/** + * Interface for hardware vertex buffer rendering. + */ +struct vbuf_render { + + /** + * Driver limits. May be tuned lower to improve cache hits on + * index list. + */ + unsigned max_indices; + unsigned max_vertex_buffer_bytes; + + /** + * Get the hardware vertex format. + * + * XXX: have this in draw_context instead? + */ + const struct vertex_info *(*get_vertex_info)( struct vbuf_render * ); + + /** + * Request a destination for vertices. + * Hardware renderers will use ttm memory, others will just malloc + * something. + */ + void *(*allocate_vertices)( struct vbuf_render *, + ushort vertex_size, + ushort nr_vertices ); + + /** + * Notify the renderer of the current primitive when it changes. + * Must succeed for TRIANGLES, LINES and POINTS. Other prims at + * the discretion of the driver, for the benefit of the passthrough + * path. + */ + boolean (*set_primitive)( struct vbuf_render *, unsigned prim ); + + /** + * DrawElements, note indices are ushort. The driver must complete + * this call, if necessary splitting the index list itself. + */ + void (*draw)( struct vbuf_render *, + const ushort *indices, + uint nr_indices ); + + /* Draw Arrays path too. + */ + void (*draw_arrays)( struct vbuf_render *, + unsigned start, + uint nr ); + + /** + * Called when vbuf is done with this set of vertices: + */ + void (*release_vertices)( struct vbuf_render *, + void *vertices, + unsigned vertex_size, + unsigned vertices_used ); + + void (*destroy)( struct vbuf_render * ); +}; + + + +struct draw_stage * +draw_vbuf_stage( struct draw_context *draw, + struct vbuf_render *render ); + + +#endif /*DRAW_VBUF_H_*/ diff --git a/src/gallium/auxiliary/draw/draw_vertex.c b/src/gallium/auxiliary/draw/draw_vertex.c new file mode 100644 index 0000000000..1446f785c5 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_vertex.c @@ -0,0 +1,129 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* + * Functions for specifying the post-transformation vertex layout. + * + * Author: + * Brian Paul + * Keith Whitwell + */ + + +#include "draw/draw_private.h" +#include "draw/draw_vertex.h" + + +/** + * Compute the size of a vertex, in dwords/floats, to update the + * vinfo->size field. + */ +void +draw_compute_vertex_size(struct vertex_info *vinfo) +{ + uint i; + + vinfo->size = 0; + for (i = 0; i < vinfo->num_attribs; i++) { + switch (vinfo->emit[i]) { + case EMIT_OMIT: + break; + case EMIT_4UB: + /* fall-through */ + case EMIT_1F_PSIZE: + /* fall-through */ + case EMIT_1F: + vinfo->size += 1; + break; + case EMIT_2F: + vinfo->size += 2; + break; + case EMIT_3F: + vinfo->size += 3; + break; + case EMIT_4F: + vinfo->size += 4; + break; + default: + assert(0); + } + } +} + + +void +draw_dump_emitted_vertex(const struct vertex_info *vinfo, const uint8_t *data) +{ + unsigned i, j; + + for (i = 0; i < vinfo->num_attribs; i++) { + j = vinfo->src_index[i]; + switch (vinfo->emit[i]) { + case EMIT_OMIT: + debug_printf("EMIT_OMIT:"); + break; + case EMIT_1F: + debug_printf("EMIT_1F:\t"); + debug_printf("%f ", *(float *)data); data += sizeof(float); + break; + case EMIT_1F_PSIZE: + debug_printf("EMIT_1F_PSIZE:\t"); + debug_printf("%f ", *(float *)data); data += sizeof(float); + break; + case EMIT_2F: + debug_printf("EMIT_2F:\t"); + debug_printf("%f ", *(float *)data); data += sizeof(float); + debug_printf("%f ", *(float *)data); data += sizeof(float); + break; + case EMIT_3F: + debug_printf("EMIT_3F:\t"); + debug_printf("%f ", *(float *)data); data += sizeof(float); + debug_printf("%f ", *(float *)data); data += sizeof(float); + debug_printf("%f ", *(float *)data); data += sizeof(float); + data += sizeof(float); + break; + case EMIT_4F: + debug_printf("EMIT_4F:\t"); + debug_printf("%f ", *(float *)data); data += sizeof(float); + debug_printf("%f ", *(float *)data); data += sizeof(float); + debug_printf("%f ", *(float *)data); data += sizeof(float); + debug_printf("%f ", *(float *)data); data += sizeof(float); + break; + case EMIT_4UB: + debug_printf("EMIT_4UB:\t"); + debug_printf("%u ", *data++); + debug_printf("%u ", *data++); + debug_printf("%u ", *data++); + debug_printf("%u ", *data++); + break; + default: + assert(0); + } + debug_printf("\n"); + } + debug_printf("\n"); +} diff --git a/src/gallium/auxiliary/draw/draw_vertex.h b/src/gallium/auxiliary/draw/draw_vertex.h new file mode 100644 index 0000000000..16c65c4317 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_vertex.h @@ -0,0 +1,133 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * Post-transform vertex format info. The vertex_info struct is used by + * the draw_vbuf code to emit hardware-specific vertex layouts into hw + * vertex buffers. + * + * Author: + * Brian Paul + */ + + +#ifndef DRAW_VERTEX_H +#define DRAW_VERTEX_H + + +#include "pipe/p_state.h" + + +/** + * Vertex attribute emit modes + */ +enum attrib_emit { + EMIT_OMIT, /**< don't emit the attribute */ + EMIT_1F, + EMIT_1F_PSIZE, /**< insert constant point size */ + EMIT_2F, + EMIT_3F, + EMIT_4F, + EMIT_4UB /**< XXX may need variations for RGBA vs BGRA, etc */ +}; + + +/** + * Attribute interpolation mode + */ +enum interp_mode { + INTERP_NONE, /**< never interpolate vertex header info */ + INTERP_POS, /**< special case for frag position */ + INTERP_CONSTANT, + INTERP_LINEAR, + INTERP_PERSPECTIVE +}; + + +/** + * Information about hardware/rasterization vertex layout. + */ +struct vertex_info +{ + uint num_attribs; + uint hwfmt[4]; /**< hardware format info for this format */ + enum interp_mode interp_mode[PIPE_MAX_SHADER_INPUTS]; + enum attrib_emit emit[PIPE_MAX_SHADER_INPUTS]; /**< EMIT_x */ + uint src_index[PIPE_MAX_SHADER_INPUTS]; /**< map to post-xform attribs */ + uint size; /**< total vertex size in dwords */ +}; + + + +/** + * Add another attribute to the given vertex_info object. + * \param src_index indicates which post-transformed vertex attrib slot + * corresponds to this attribute. + * \return slot in which the attribute was added + */ +static INLINE uint +draw_emit_vertex_attr(struct vertex_info *vinfo, + enum attrib_emit emit, enum interp_mode interp, + uint src_index) +{ + const uint n = vinfo->num_attribs; + assert(n < PIPE_MAX_SHADER_INPUTS); + vinfo->emit[n] = emit; + vinfo->interp_mode[n] = interp; + vinfo->src_index[n] = src_index; + vinfo->num_attribs++; + return n; +} + + +extern void draw_compute_vertex_size(struct vertex_info *vinfo); + +void draw_dump_emitted_vertex(const struct vertex_info *vinfo, + const uint8_t *data); + + +static INLINE unsigned draw_translate_vinfo_format(unsigned format ) +{ + switch (format) { + case EMIT_1F: + case EMIT_1F_PSIZE: + return PIPE_FORMAT_R32_FLOAT; + case EMIT_2F: + return PIPE_FORMAT_R32G32_FLOAT; + case EMIT_3F: + return PIPE_FORMAT_R32G32B32_FLOAT; + case EMIT_4F: + return PIPE_FORMAT_R32G32B32A32_FLOAT; + case EMIT_4UB: + return PIPE_FORMAT_R8G8B8A8_UNORM; + default: + return PIPE_FORMAT_NONE; + } +} + + +#endif /* DRAW_VERTEX_H */ diff --git a/src/gallium/auxiliary/draw/draw_vs.c b/src/gallium/auxiliary/draw/draw_vs.c new file mode 100644 index 0000000000..34adbd49b0 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_vs.c @@ -0,0 +1,264 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + * Brian Paul + */ + +#include "util/u_math.h" +#include "util/u_memory.h" + +#include "pipe/p_shader_tokens.h" + +#include "draw_private.h" +#include "draw_context.h" +#include "draw_vs.h" + +#include "translate/translate.h" +#include "translate/translate_cache.h" + + + + +void draw_vs_set_constants( struct draw_context *draw, + const float (*constants)[4], + unsigned size ) +{ + if (((unsigned)constants) & 0xf) { + if (size > draw->vs.const_storage_size) { + if (draw->vs.aligned_constant_storage) + align_free((void *)draw->vs.aligned_constant_storage); + draw->vs.aligned_constant_storage = align_malloc( size, 16 ); + } + memcpy( (void*)draw->vs.aligned_constant_storage, + constants, + size ); + constants = draw->vs.aligned_constant_storage; + } + + draw->vs.aligned_constants = constants; + draw_vs_aos_machine_constants( draw->vs.aos_machine, constants ); +} + + +void draw_vs_set_viewport( struct draw_context *draw, + const struct pipe_viewport_state *viewport ) +{ + draw_vs_aos_machine_viewport( draw->vs.aos_machine, viewport ); +} + + + +struct draw_vertex_shader * +draw_create_vertex_shader(struct draw_context *draw, + const struct pipe_shader_state *shader) +{ + struct draw_vertex_shader *vs; + + vs = draw_create_vs_llvm( draw, shader ); + if (!vs) { + vs = draw_create_vs_sse( draw, shader ); + if (!vs) { + vs = draw_create_vs_exec( draw, shader ); + } + } + + if (vs) + { + uint i; + for (i = 0; i < vs->info.num_outputs; i++) { + if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_POSITION && + vs->info.output_semantic_index[i] == 0) + vs->position_output = i; + } + } + + assert(vs); + return vs; +} + + +void +draw_bind_vertex_shader(struct draw_context *draw, + struct draw_vertex_shader *dvs) +{ + draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); + + if (dvs) + { + draw->vs.vertex_shader = dvs; + draw->vs.num_vs_outputs = dvs->info.num_outputs; + draw->vs.position_output = dvs->position_output; + dvs->prepare( dvs, draw ); + } + else { + draw->vs.vertex_shader = NULL; + draw->vs.num_vs_outputs = 0; + } +} + + +void +draw_delete_vertex_shader(struct draw_context *draw, + struct draw_vertex_shader *dvs) +{ + unsigned i; + + for (i = 0; i < dvs->nr_varients; i++) + dvs->varient[i]->destroy( dvs->varient[i] ); + + dvs->nr_varients = 0; + + dvs->delete( dvs ); +} + + + +boolean +draw_vs_init( struct draw_context *draw ) +{ + tgsi_exec_machine_init(&draw->vs.machine); + + /* FIXME: give this machine thing a proper constructor: + */ + draw->vs.machine.Inputs = align_malloc(PIPE_MAX_ATTRIBS * sizeof(struct tgsi_exec_vector), 16); + if (!draw->vs.machine.Inputs) + return FALSE; + + draw->vs.machine.Outputs = align_malloc(PIPE_MAX_ATTRIBS * sizeof(struct tgsi_exec_vector), 16); + if (!draw->vs.machine.Outputs) + return FALSE; + + draw->vs.emit_cache = translate_cache_create(); + if (!draw->vs.emit_cache) + return FALSE; + + draw->vs.fetch_cache = translate_cache_create(); + if (!draw->vs.fetch_cache) + return FALSE; + + draw->vs.aos_machine = draw_vs_aos_machine(); +#ifdef PIPE_ARCH_X86 + if (!draw->vs.aos_machine) + return FALSE; +#endif + + return TRUE; +} + +void +draw_vs_destroy( struct draw_context *draw ) +{ + if (draw->vs.machine.Inputs) + align_free(draw->vs.machine.Inputs); + + if (draw->vs.machine.Outputs) + align_free(draw->vs.machine.Outputs); + + if (draw->vs.fetch_cache) + translate_cache_destroy(draw->vs.fetch_cache); + + if (draw->vs.emit_cache) + translate_cache_destroy(draw->vs.emit_cache); + + if (draw->vs.aos_machine) + draw_vs_aos_machine_destroy(draw->vs.aos_machine); + + if (draw->vs.aligned_constant_storage) + align_free((void*)draw->vs.aligned_constant_storage); + + tgsi_exec_machine_free_data(&draw->vs.machine); + +} + + +struct draw_vs_varient * +draw_vs_lookup_varient( struct draw_vertex_shader *vs, + const struct draw_vs_varient_key *key ) +{ + struct draw_vs_varient *varient; + unsigned i; + + /* Lookup existing varient: + */ + for (i = 0; i < vs->nr_varients; i++) + if (draw_vs_varient_key_compare(key, &vs->varient[i]->key) == 0) + return vs->varient[i]; + + /* Else have to create a new one: + */ + varient = vs->create_varient( vs, key ); + if (varient == NULL) + return NULL; + + /* Add it to our list, could be smarter: + */ + if (vs->nr_varients < Elements(vs->varient)) { + vs->varient[vs->nr_varients++] = varient; + } + else { + vs->last_varient++; + vs->last_varient %= Elements(vs->varient); + vs->varient[vs->last_varient]->destroy(vs->varient[vs->last_varient]); + vs->varient[vs->last_varient] = varient; + } + + /* Done + */ + return varient; +} + + +struct translate * +draw_vs_get_fetch( struct draw_context *draw, + struct translate_key *key ) +{ + if (!draw->vs.fetch || + translate_key_compare(&draw->vs.fetch->key, key) != 0) + { + translate_key_sanitize(key); + draw->vs.fetch = translate_cache_find(draw->vs.fetch_cache, key); + } + + return draw->vs.fetch; +} + +struct translate * +draw_vs_get_emit( struct draw_context *draw, + struct translate_key *key ) +{ + if (!draw->vs.emit || + translate_key_compare(&draw->vs.emit->key, key) != 0) + { + translate_key_sanitize(key); + draw->vs.emit = translate_cache_find(draw->vs.emit_cache, key); + } + + return draw->vs.emit; +} diff --git a/src/gallium/auxiliary/draw/draw_vs.h b/src/gallium/auxiliary/draw/draw_vs.h new file mode 100644 index 0000000000..45992d1986 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_vs.h @@ -0,0 +1,220 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + +#ifndef DRAW_VS_H +#define DRAW_VS_H + +#include "draw_context.h" +#include "draw_private.h" + + +struct draw_context; +struct pipe_shader_state; + +struct draw_varient_input +{ + enum pipe_format format; + unsigned buffer; + unsigned offset; +}; + +struct draw_varient_output +{ + enum pipe_format format; /* output format */ + unsigned vs_output:8; /* which vertex shader output is this? */ + unsigned offset:24; /* offset into output vertex */ +}; + +struct draw_varient_element { + struct draw_varient_input in; + struct draw_varient_output out; +}; + +struct draw_vs_varient_key { + unsigned output_stride; + unsigned nr_elements:8; /* max2(nr_inputs, nr_outputs) */ + unsigned nr_inputs:8; + unsigned nr_outputs:8; + unsigned viewport:1; + unsigned clip:1; + unsigned pad:5; + struct draw_varient_element element[PIPE_MAX_ATTRIBS]; +}; + +struct draw_vs_varient; + + +struct draw_vs_varient { + struct draw_vs_varient_key key; + + struct draw_vertex_shader *vs; + + void (*set_input)( struct draw_vs_varient *, + unsigned i, + const void *ptr, + unsigned stride ); + + void (PIPE_CDECL *run_linear)( struct draw_vs_varient *shader, + unsigned start, + unsigned count, + void *output_buffer ); + + void (PIPE_CDECL *run_elts)( struct draw_vs_varient *shader, + const unsigned *elts, + unsigned count, + void *output_buffer ); + + void (*destroy)( struct draw_vs_varient * ); +}; + + +/** + * Private version of the compiled vertex_shader + */ +struct draw_vertex_shader { + struct draw_context *draw; + + /* This member will disappear shortly: + */ + struct pipe_shader_state state; + + struct tgsi_shader_info info; + unsigned position_output; + + /* Extracted from shader: + */ + const float (*immediates)[4]; + + /* + */ + struct draw_vs_varient *varient[16]; + unsigned nr_varients; + unsigned last_varient; + struct draw_vs_varient *(*create_varient)( struct draw_vertex_shader *shader, + const struct draw_vs_varient_key *key ); + + + void (*prepare)( struct draw_vertex_shader *shader, + struct draw_context *draw ); + + /* Run the shader - this interface will get cleaned up in the + * future: + */ + void (*run_linear)( struct draw_vertex_shader *shader, + const float (*input)[4], + float (*output)[4], + const float (*constants)[4], + unsigned count, + unsigned input_stride, + unsigned output_stride ); + + + void (*delete)( struct draw_vertex_shader * ); +}; + + +struct draw_vs_varient * +draw_vs_lookup_varient( struct draw_vertex_shader *base, + const struct draw_vs_varient_key *key ); + + +/******************************************************************************** + * Internal functions: + */ + +struct draw_vertex_shader * +draw_create_vs_exec(struct draw_context *draw, + const struct pipe_shader_state *templ); + +struct draw_vertex_shader * +draw_create_vs_sse(struct draw_context *draw, + const struct pipe_shader_state *templ); + +struct draw_vertex_shader * +draw_create_vs_llvm(struct draw_context *draw, + const struct pipe_shader_state *templ); + + + +struct draw_vs_varient_key; +struct draw_vertex_shader; + +struct draw_vs_varient *draw_vs_varient_aos_sse( struct draw_vertex_shader *vs, + const struct draw_vs_varient_key *key ); + + + +/******************************************************************************** + * Helpers for vs implementations that don't do their own fetch/emit varients. + * Means these can be shared between shaders. + */ +struct translate; +struct translate_key; + +struct translate *draw_vs_get_fetch( struct draw_context *draw, + struct translate_key *key ); + + +struct translate *draw_vs_get_emit( struct draw_context *draw, + struct translate_key *key ); + +struct draw_vs_varient *draw_vs_varient_generic( struct draw_vertex_shader *vs, + const struct draw_vs_varient_key *key ); + + + +static INLINE int draw_vs_varient_keysize( const struct draw_vs_varient_key *key ) +{ + return 2 * sizeof(int) + key->nr_elements * sizeof(struct draw_varient_element); +} + +static INLINE int draw_vs_varient_key_compare( const struct draw_vs_varient_key *a, + const struct draw_vs_varient_key *b ) +{ + int keysize = draw_vs_varient_keysize(a); + return memcmp(a, b, keysize); +} + + +struct aos_machine *draw_vs_aos_machine( void ); +void draw_vs_aos_machine_destroy( struct aos_machine *machine ); + +void draw_vs_aos_machine_constants( struct aos_machine *machine, + const float (*constants)[4] ); + +void draw_vs_aos_machine_viewport( struct aos_machine *machine, + const struct pipe_viewport_state *viewport ); + + +#define MAX_TGSI_VERTICES 4 + + + +#endif diff --git a/src/gallium/auxiliary/draw/draw_vs_aos.c b/src/gallium/auxiliary/draw/draw_vs_aos.c new file mode 100644 index 0000000000..760fcb389f --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_vs_aos.c @@ -0,0 +1,2200 @@ +/* + * Mesa 3-D graphics library + * Version: 6.3 + * + * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * Translate tgsi vertex programs to x86/x87/SSE/SSE2 machine code + * using the rtasm runtime assembler. Based on the old + * t_vb_arb_program_sse.c + */ + + +#include "util/u_memory.h" +#include "util/u_math.h" +#include "pipe/p_shader_tokens.h" +#include "tgsi/tgsi_parse.h" +#include "tgsi/tgsi_util.h" +#include "tgsi/tgsi_exec.h" +#include "tgsi/tgsi_dump.h" + +#include "draw_vs.h" +#include "draw_vs_aos.h" + +#include "rtasm/rtasm_x86sse.h" + +#ifdef PIPE_ARCH_X86 +#define DISASSEM 0 +#define FAST_MATH 1 + +static const char *files[] = +{ + "NULL", + "CONST", + "IN", + "OUT", + "TEMP", + "SAMP", + "ADDR", + "IMM", + "INTERNAL", +}; + +static INLINE boolean eq( struct x86_reg a, + struct x86_reg b ) +{ + return (a.file == b.file && + a.idx == b.idx && + a.mod == b.mod && + a.disp == b.disp); +} + +struct x86_reg aos_get_x86( struct aos_compilation *cp, + unsigned which_reg, /* quick hack */ + unsigned value ) +{ + struct x86_reg reg; + + if (which_reg == 0) + reg = cp->temp_EBP; + else + reg = cp->tmp_EAX; + + if (cp->x86_reg[which_reg] != value) { + unsigned offset; + + switch (value) { + case X86_IMMEDIATES: + assert(which_reg == 0); + offset = Offset(struct aos_machine, immediates); + break; + case X86_CONSTANTS: + assert(which_reg == 1); + offset = Offset(struct aos_machine, constants); + break; + case X86_ATTRIBS: + assert(which_reg == 0); + offset = Offset(struct aos_machine, attrib); + break; + default: + assert(0); + offset = 0; + } + + + x86_mov(cp->func, reg, + x86_make_disp(cp->machine_EDX, offset)); + + cp->x86_reg[which_reg] = value; + } + + return reg; +} + + +static struct x86_reg get_reg_ptr(struct aos_compilation *cp, + unsigned file, + unsigned idx ) +{ + struct x86_reg ptr = cp->machine_EDX; + + switch (file) { + case TGSI_FILE_INPUT: + return x86_make_disp(ptr, Offset(struct aos_machine, input[idx])); + + case TGSI_FILE_OUTPUT: + return x86_make_disp(ptr, Offset(struct aos_machine, output[idx])); + + case TGSI_FILE_TEMPORARY: + return x86_make_disp(ptr, Offset(struct aos_machine, temp[idx])); + + case AOS_FILE_INTERNAL: + return x86_make_disp(ptr, Offset(struct aos_machine, internal[idx])); + + case TGSI_FILE_IMMEDIATE: + return x86_make_disp(aos_get_x86(cp, 0, X86_IMMEDIATES), idx * 4 * sizeof(float)); + + case TGSI_FILE_CONSTANT: + return x86_make_disp(aos_get_x86(cp, 1, X86_CONSTANTS), idx * 4 * sizeof(float)); + + default: + ERROR(cp, "unknown reg file"); + return x86_make_reg(0,0); + } +} + + + +#define X87_CW_EXCEPTION_INV_OP (1<<0) +#define X87_CW_EXCEPTION_DENORM_OP (1<<1) +#define X87_CW_EXCEPTION_ZERO_DIVIDE (1<<2) +#define X87_CW_EXCEPTION_OVERFLOW (1<<3) +#define X87_CW_EXCEPTION_UNDERFLOW (1<<4) +#define X87_CW_EXCEPTION_PRECISION (1<<5) +#define X87_CW_PRECISION_SINGLE (0<<8) +#define X87_CW_PRECISION_RESERVED (1<<8) +#define X87_CW_PRECISION_DOUBLE (2<<8) +#define X87_CW_PRECISION_DOUBLE_EXT (3<<8) +#define X87_CW_PRECISION_MASK (3<<8) +#define X87_CW_ROUND_NEAREST (0<<10) +#define X87_CW_ROUND_DOWN (1<<10) +#define X87_CW_ROUND_UP (2<<10) +#define X87_CW_ROUND_ZERO (3<<10) +#define X87_CW_ROUND_MASK (3<<10) +#define X87_CW_INFINITY (1<<12) + + + + +static void spill( struct aos_compilation *cp, unsigned idx ) +{ + if (!cp->xmm[idx].dirty || + (cp->xmm[idx].file != TGSI_FILE_INPUT && /* inputs are fetched into xmm & set dirty */ + cp->xmm[idx].file != TGSI_FILE_OUTPUT && + cp->xmm[idx].file != TGSI_FILE_TEMPORARY)) { + ERROR(cp, "invalid spill"); + return; + } + else { + struct x86_reg oldval = get_reg_ptr(cp, + cp->xmm[idx].file, + cp->xmm[idx].idx); + + if (0) debug_printf("\nspill %s[%d]", + files[cp->xmm[idx].file], + cp->xmm[idx].idx); + + assert(cp->xmm[idx].dirty); + sse_movaps(cp->func, oldval, x86_make_reg(file_XMM, idx)); + cp->xmm[idx].dirty = 0; + } +} + + +static struct x86_reg get_xmm_writable( struct aos_compilation *cp, + struct x86_reg reg ) +{ + if (reg.file != file_XMM || + cp->xmm[reg.idx].file != TGSI_FILE_NULL) + { + struct x86_reg tmp = aos_get_xmm_reg(cp); + sse_movaps(cp->func, tmp, reg); + reg = tmp; + } + + cp->xmm[reg.idx].last_used = cp->insn_counter; + return reg; +} + +static struct x86_reg get_xmm( struct aos_compilation *cp, + struct x86_reg reg ) +{ + if (reg.file != file_XMM) + { + struct x86_reg tmp = aos_get_xmm_reg(cp); + sse_movaps(cp->func, tmp, reg); + reg = tmp; + } + + cp->xmm[reg.idx].last_used = cp->insn_counter; + return reg; +} + + +/* Allocate an empty xmm register, either as a temporary or later to + * "adopt" as a shader reg. + */ +struct x86_reg aos_get_xmm_reg( struct aos_compilation *cp ) +{ + unsigned i; + unsigned oldest = 0; + boolean found = FALSE; + + for (i = 0; i < 8; i++) + if (cp->xmm[i].last_used != cp->insn_counter && + cp->xmm[i].file == TGSI_FILE_NULL) { + oldest = i; + found = TRUE; + } + + if (!found) { + for (i = 0; i < 8; i++) + if (cp->xmm[i].last_used < cp->xmm[oldest].last_used) + oldest = i; + } + + /* Need to write out the old value? + */ + if (cp->xmm[oldest].dirty) + spill(cp, oldest); + + assert(cp->xmm[oldest].last_used != cp->insn_counter); + + cp->xmm[oldest].file = TGSI_FILE_NULL; + cp->xmm[oldest].idx = 0; + cp->xmm[oldest].dirty = 0; + cp->xmm[oldest].last_used = cp->insn_counter; + return x86_make_reg(file_XMM, oldest); +} + +void aos_release_xmm_reg( struct aos_compilation *cp, + unsigned idx ) +{ + cp->xmm[idx].file = TGSI_FILE_NULL; + cp->xmm[idx].idx = 0; + cp->xmm[idx].dirty = 0; + cp->xmm[idx].last_used = 0; +} + + + + +/* Mark an xmm reg as holding the current copy of a shader reg. + */ +void aos_adopt_xmm_reg( struct aos_compilation *cp, + struct x86_reg reg, + unsigned file, + unsigned idx, + unsigned dirty ) +{ + unsigned i; + + if (reg.file != file_XMM) { + assert(0); + return; + } + + + /* If any xmm reg thinks it holds this shader reg, break the + * illusion. + */ + for (i = 0; i < 8; i++) { + if (cp->xmm[i].file == file && + cp->xmm[i].idx == idx) + { + /* If an xmm reg is already holding this shader reg, take into account its + * dirty flag... + */ + dirty |= cp->xmm[i].dirty; + aos_release_xmm_reg(cp, i); + } + } + + cp->xmm[reg.idx].file = file; + cp->xmm[reg.idx].idx = idx; + cp->xmm[reg.idx].dirty = dirty; + cp->xmm[reg.idx].last_used = cp->insn_counter; +} + + +/* Return a pointer to the in-memory copy of the reg, making sure it is uptodate. + */ +static struct x86_reg aos_get_shader_reg_ptr( struct aos_compilation *cp, + unsigned file, + unsigned idx ) +{ + unsigned i; + + /* Ensure the in-memory copy of this reg is up-to-date + */ + for (i = 0; i < 8; i++) { + if (cp->xmm[i].file == file && + cp->xmm[i].idx == idx && + cp->xmm[i].dirty) { + spill(cp, i); + } + } + + return get_reg_ptr( cp, file, idx ); +} + + +/* As above, but return a pointer. Note - this pointer may alias + * those returned by get_arg_ptr(). + */ +static struct x86_reg get_dst_ptr( struct aos_compilation *cp, + const struct tgsi_full_dst_register *dst ) +{ + unsigned file = dst->DstRegister.File; + unsigned idx = dst->DstRegister.Index; + unsigned i; + + + /* Ensure in-memory copy of this reg is up-to-date and invalidate + * any xmm copies. + */ + for (i = 0; i < 8; i++) { + if (cp->xmm[i].file == file && + cp->xmm[i].idx == idx) + { + if (cp->xmm[i].dirty) + spill(cp, i); + + aos_release_xmm_reg(cp, i); + } + } + + return get_reg_ptr( cp, file, idx ); +} + + + + + +/* Return an XMM reg if the argument is resident, otherwise return a + * base+offset pointer to the saved value. + */ +struct x86_reg aos_get_shader_reg( struct aos_compilation *cp, + unsigned file, + unsigned idx ) +{ + unsigned i; + + for (i = 0; i < 8; i++) { + if (cp->xmm[i].file == file && + cp->xmm[i].idx == idx) + { + cp->xmm[i].last_used = cp->insn_counter; + return x86_make_reg(file_XMM, i); + } + } + + /* If not found in the XMM register file, return an indirect + * reference to the in-memory copy: + */ + return get_reg_ptr( cp, file, idx ); +} + + + +static struct x86_reg aos_get_shader_reg_xmm( struct aos_compilation *cp, + unsigned file, + unsigned idx ) +{ + struct x86_reg reg = get_xmm( cp, + aos_get_shader_reg( cp, file, idx ) ); + + aos_adopt_xmm_reg( cp, + reg, + file, + idx, + FALSE ); + + return reg; +} + + + +struct x86_reg aos_get_internal_xmm( struct aos_compilation *cp, + unsigned imm ) +{ + return aos_get_shader_reg_xmm( cp, AOS_FILE_INTERNAL, imm ); +} + + +struct x86_reg aos_get_internal( struct aos_compilation *cp, + unsigned imm ) +{ + return aos_get_shader_reg( cp, AOS_FILE_INTERNAL, imm ); +} + + + + + +/* Emulate pshufd insn in regular SSE, if necessary: + */ +static void emit_pshufd( struct aos_compilation *cp, + struct x86_reg dst, + struct x86_reg arg0, + ubyte shuf ) +{ + if (cp->have_sse2) { + sse2_pshufd(cp->func, dst, arg0, shuf); + } + else { + if (!eq(dst, arg0)) + sse_movaps(cp->func, dst, arg0); + + sse_shufps(cp->func, dst, dst, shuf); + } +} + +/* load masks (pack into negs??) + * pshufd - shuffle according to writemask + * and - result, mask + * nand - dest, mask + * or - dest, result + */ +static boolean mask_write( struct aos_compilation *cp, + struct x86_reg dst, + struct x86_reg result, + unsigned mask ) +{ + struct x86_reg imm_swz = aos_get_internal_xmm(cp, IMM_SWZ); + struct x86_reg tmp = aos_get_xmm_reg(cp); + + emit_pshufd(cp, tmp, imm_swz, + SHUF((mask & 1) ? 2 : 3, + (mask & 2) ? 2 : 3, + (mask & 4) ? 2 : 3, + (mask & 8) ? 2 : 3)); + + sse_andps(cp->func, dst, tmp); + sse_andnps(cp->func, tmp, result); + sse_orps(cp->func, dst, tmp); + + aos_release_xmm_reg(cp, tmp.idx); + return TRUE; +} + + + + +/* Helper for writemask: + */ +static boolean emit_shuf_copy2( struct aos_compilation *cp, + struct x86_reg dst, + struct x86_reg arg0, + struct x86_reg arg1, + ubyte shuf ) +{ + struct x86_reg tmp = aos_get_xmm_reg(cp); + + emit_pshufd(cp, dst, arg1, shuf); + emit_pshufd(cp, tmp, arg0, shuf); + sse_shufps(cp->func, dst, tmp, SHUF(X, Y, Z, W)); + emit_pshufd(cp, dst, dst, shuf); + + aos_release_xmm_reg(cp, tmp.idx); + return TRUE; +} + + + +#define SSE_SWIZZLE_NOOP ((0<<0) | (1<<2) | (2<<4) | (3<<6)) + + +/* Locate a source register and perform any required (simple) swizzle. + * + * Just fail on complex swizzles at this point. + */ +static struct x86_reg fetch_src( struct aos_compilation *cp, + const struct tgsi_full_src_register *src ) +{ + struct x86_reg arg0 = aos_get_shader_reg(cp, + src->SrcRegister.File, + src->SrcRegister.Index); + unsigned i; + ubyte swz = 0; + unsigned negs = 0; + unsigned abs = 0; + + for (i = 0; i < 4; i++) { + unsigned swizzle = tgsi_util_get_full_src_register_extswizzle( src, i ); + unsigned neg = tgsi_util_get_full_src_register_sign_mode( src, i ); + + switch (swizzle) { + case TGSI_EXTSWIZZLE_ZERO: + case TGSI_EXTSWIZZLE_ONE: + ERROR(cp, "not supporting full swizzles yet in tgsi_aos_sse2"); + break; + + default: + swz |= (swizzle & 0x3) << (i * 2); + break; + } + + switch (neg) { + case TGSI_UTIL_SIGN_TOGGLE: + negs |= (1<<i); + break; + + case TGSI_UTIL_SIGN_KEEP: + break; + + case TGSI_UTIL_SIGN_CLEAR: + abs |= (1<<i); + break; + + default: + ERROR(cp, "unsupported sign-mode"); + break; + } + } + + if (swz != SSE_SWIZZLE_NOOP || negs != 0 || abs != 0) { + struct x86_reg dst = aos_get_xmm_reg(cp); + + if (swz != SSE_SWIZZLE_NOOP) + emit_pshufd(cp, dst, arg0, swz); + else + sse_movaps(cp->func, dst, arg0); + + if (negs && negs != 0xf) { + struct x86_reg imm_swz = aos_get_internal_xmm(cp, IMM_SWZ); + struct x86_reg tmp = aos_get_xmm_reg(cp); + + /* Load 1,-1,0,0 + * Use neg as arg to pshufd + * Multiply + */ + emit_pshufd(cp, tmp, imm_swz, + SHUF((negs & 1) ? 1 : 0, + (negs & 2) ? 1 : 0, + (negs & 4) ? 1 : 0, + (negs & 8) ? 1 : 0)); + sse_mulps(cp->func, dst, tmp); + + aos_release_xmm_reg(cp, tmp.idx); + } + else if (negs) { + struct x86_reg imm_negs = aos_get_internal_xmm(cp, IMM_NEGS); + sse_mulps(cp->func, dst, imm_negs); + } + + + if (abs && abs != 0xf) { + ERROR(cp, "unsupported partial abs"); + } + else if (abs) { + struct x86_reg neg = aos_get_internal(cp, IMM_NEGS); + struct x86_reg tmp = aos_get_xmm_reg(cp); + + sse_movaps(cp->func, tmp, dst); + sse_mulps(cp->func, tmp, neg); + sse_maxps(cp->func, dst, tmp); + + aos_release_xmm_reg(cp, tmp.idx); + } + + return dst; + } + + return arg0; +} + +static void x87_fld_src( struct aos_compilation *cp, + const struct tgsi_full_src_register *src, + unsigned channel ) +{ + struct x86_reg arg0 = aos_get_shader_reg_ptr(cp, + src->SrcRegister.File, + src->SrcRegister.Index); + + unsigned swizzle = tgsi_util_get_full_src_register_extswizzle( src, channel ); + unsigned neg = tgsi_util_get_full_src_register_sign_mode( src, channel ); + + switch (swizzle) { + case TGSI_EXTSWIZZLE_ZERO: + x87_fldz( cp->func ); + break; + + case TGSI_EXTSWIZZLE_ONE: + x87_fld1( cp->func ); + break; + + default: + x87_fld( cp->func, x86_make_disp(arg0, (swizzle & 3) * sizeof(float)) ); + break; + } + + + switch (neg) { + case TGSI_UTIL_SIGN_TOGGLE: + /* Flip the sign: + */ + x87_fchs( cp->func ); + break; + + case TGSI_UTIL_SIGN_KEEP: + break; + + case TGSI_UTIL_SIGN_CLEAR: + x87_fabs( cp->func ); + break; + + case TGSI_UTIL_SIGN_SET: + x87_fabs( cp->func ); + x87_fchs( cp->func ); + break; + + default: + ERROR(cp, "unsupported sign-mode"); + break; + } +} + + + + + + +/* Used to implement write masking. This and most of the other instructions + * here would be easier to implement if there had been a translation + * to a 2 argument format (dst/arg0, arg1) at the shader level before + * attempting to translate to x86/sse code. + */ +static void store_dest( struct aos_compilation *cp, + const struct tgsi_full_dst_register *reg, + struct x86_reg result ) +{ + struct x86_reg dst; + + switch (reg->DstRegister.WriteMask) { + case 0: + return; + + case TGSI_WRITEMASK_XYZW: + aos_adopt_xmm_reg(cp, + get_xmm_writable(cp, result), + reg->DstRegister.File, + reg->DstRegister.Index, + TRUE); + return; + default: + break; + } + + dst = aos_get_shader_reg_xmm(cp, + reg->DstRegister.File, + reg->DstRegister.Index); + + switch (reg->DstRegister.WriteMask) { + case TGSI_WRITEMASK_X: + sse_movss(cp->func, dst, get_xmm(cp, result)); + break; + + case TGSI_WRITEMASK_ZW: + sse_shufps(cp->func, dst, get_xmm(cp, result), SHUF(X, Y, Z, W)); + break; + + case TGSI_WRITEMASK_XY: + result = get_xmm_writable(cp, result); + sse_shufps(cp->func, result, dst, SHUF(X, Y, Z, W)); + dst = result; + break; + + case TGSI_WRITEMASK_YZW: + result = get_xmm_writable(cp, result); + sse_movss(cp->func, result, dst); + dst = result; + break; + + default: + mask_write(cp, dst, result, reg->DstRegister.WriteMask); + break; + } + + aos_adopt_xmm_reg(cp, + dst, + reg->DstRegister.File, + reg->DstRegister.Index, + TRUE); + +} + +static void inject_scalar( struct aos_compilation *cp, + struct x86_reg dst, + struct x86_reg result, + ubyte swizzle ) +{ + sse_shufps(cp->func, dst, dst, swizzle); + sse_movss(cp->func, dst, result); + sse_shufps(cp->func, dst, dst, swizzle); +} + + +static void store_scalar_dest( struct aos_compilation *cp, + const struct tgsi_full_dst_register *reg, + struct x86_reg result ) +{ + unsigned writemask = reg->DstRegister.WriteMask; + struct x86_reg dst; + + if (writemask != TGSI_WRITEMASK_X && + writemask != TGSI_WRITEMASK_Y && + writemask != TGSI_WRITEMASK_Z && + writemask != TGSI_WRITEMASK_W && + writemask != 0) + { + result = get_xmm_writable(cp, result); /* already true, right? */ + sse_shufps(cp->func, result, result, SHUF(X,X,X,X)); + store_dest(cp, reg, result); + return; + } + + result = get_xmm(cp, result); + dst = aos_get_shader_reg_xmm(cp, + reg->DstRegister.File, + reg->DstRegister.Index); + + + + switch (reg->DstRegister.WriteMask) { + case TGSI_WRITEMASK_X: + sse_movss(cp->func, dst, result); + break; + + case TGSI_WRITEMASK_Y: + inject_scalar(cp, dst, result, SHUF(Y, X, Z, W)); + break; + + case TGSI_WRITEMASK_Z: + inject_scalar(cp, dst, result, SHUF(Z, Y, X, W)); + break; + + case TGSI_WRITEMASK_W: + inject_scalar(cp, dst, result, SHUF(W, Y, Z, X)); + break; + + default: + break; + } + + aos_adopt_xmm_reg(cp, + dst, + reg->DstRegister.File, + reg->DstRegister.Index, + TRUE); +} + + + +static void x87_fst_or_nop( struct x86_function *func, + unsigned writemask, + unsigned channel, + struct x86_reg ptr ) +{ + assert(ptr.file == file_REG32); + if (writemask & (1<<channel)) + x87_fst( func, x86_make_disp(ptr, channel * sizeof(float)) ); +} + +static void x87_fstp_or_pop( struct x86_function *func, + unsigned writemask, + unsigned channel, + struct x86_reg ptr ) +{ + assert(ptr.file == file_REG32); + if (writemask & (1<<channel)) + x87_fstp( func, x86_make_disp(ptr, channel * sizeof(float)) ); + else + x87_fstp( func, x86_make_reg( file_x87, 0 )); +} + + + +/* + */ +static void x87_fstp_dest4( struct aos_compilation *cp, + const struct tgsi_full_dst_register *dst ) +{ + struct x86_reg ptr = get_dst_ptr(cp, dst); + unsigned writemask = dst->DstRegister.WriteMask; + + x87_fst_or_nop(cp->func, writemask, 0, ptr); + x87_fst_or_nop(cp->func, writemask, 1, ptr); + x87_fst_or_nop(cp->func, writemask, 2, ptr); + x87_fstp_or_pop(cp->func, writemask, 3, ptr); +} + +/* Save current x87 state and put it into single precision mode. + */ +static void save_fpu_state( struct aos_compilation *cp ) +{ + x87_fnstcw( cp->func, x86_make_disp(cp->machine_EDX, + Offset(struct aos_machine, fpu_restore))); +} + +static void restore_fpu_state( struct aos_compilation *cp ) +{ + x87_fnclex(cp->func); + x87_fldcw( cp->func, x86_make_disp(cp->machine_EDX, + Offset(struct aos_machine, fpu_restore))); +} + +static void set_fpu_round_neg_inf( struct aos_compilation *cp ) +{ + if (cp->fpucntl != FPU_RND_NEG) { + cp->fpucntl = FPU_RND_NEG; + x87_fnclex(cp->func); + x87_fldcw( cp->func, x86_make_disp(cp->machine_EDX, + Offset(struct aos_machine, fpu_rnd_neg_inf))); + } +} + +static void set_fpu_round_nearest( struct aos_compilation *cp ) +{ + if (cp->fpucntl != FPU_RND_NEAREST) { + cp->fpucntl = FPU_RND_NEAREST; + x87_fnclex(cp->func); + x87_fldcw( cp->func, x86_make_disp(cp->machine_EDX, + Offset(struct aos_machine, fpu_rnd_nearest))); + } +} + + +static void x87_emit_ex2( struct aos_compilation *cp ) +{ + struct x86_reg st0 = x86_make_reg(file_x87, 0); + struct x86_reg st1 = x86_make_reg(file_x87, 1); + int stack = cp->func->x87_stack; + +// set_fpu_round_neg_inf( cp ); + + x87_fld(cp->func, st0); /* a a */ + x87_fprndint( cp->func ); /* int(a) a*/ + x87_fsubr(cp->func, st1, st0); /* int(a) frc(a) */ + x87_fxch(cp->func, st1); /* frc(a) int(a) */ + x87_f2xm1(cp->func); /* (2^frc(a))-1 int(a) */ + x87_fld1(cp->func); /* 1 (2^frc(a))-1 int(a) */ + x87_faddp(cp->func, st1); /* 2^frac(a) int(a) */ + x87_fscale(cp->func); /* (2^frac(a)*2^int(int(a))) int(a) */ + /* 2^a int(a) */ + x87_fstp(cp->func, st1); /* 2^a */ + + assert( stack == cp->func->x87_stack); + +} + +static void PIPE_CDECL print_reg( const char *msg, + const float *reg ) +{ + debug_printf("%s: %f %f %f %f\n", msg, reg[0], reg[1], reg[2], reg[3]); +} + +static void emit_print( struct aos_compilation *cp, + const char *message, /* must point to a static string! */ + unsigned file, + unsigned idx ) +{ + struct x86_reg ecx = x86_make_reg( file_REG32, reg_CX ); + struct x86_reg arg = aos_get_shader_reg_ptr( cp, file, idx ); + unsigned i; + + /* There shouldn't be anything on the x87 stack. Can add this + * capacity later if need be. + */ + assert(cp->func->x87_stack == 0); + + /* For absolute correctness, need to spill/invalidate all XMM regs + * too. We're obviously not concerned about performance on this + * debug path, so here goes: + */ + for (i = 0; i < 8; i++) { + if (cp->xmm[i].dirty) + spill(cp, i); + + aos_release_xmm_reg(cp, i); + } + + /* Push caller-save (ie scratch) regs. + */ + x86_cdecl_caller_push_regs( cp->func ); + + + /* Push the arguments: + */ + x86_lea( cp->func, ecx, arg ); + x86_push( cp->func, ecx ); + x86_push_imm32( cp->func, (int)message ); + + /* Call the helper. Could call debug_printf directly, but + * print_reg is a nice place to put a breakpoint if need be. + */ + x86_mov_reg_imm( cp->func, ecx, (int)print_reg ); + x86_call( cp->func, ecx ); + x86_pop( cp->func, ecx ); + x86_pop( cp->func, ecx ); + + /* Pop caller-save regs + */ + x86_cdecl_caller_pop_regs( cp->func ); + + /* Done... + */ +} + +/** + * The traditional instructions. All operate on internal registers + * and ignore write masks and swizzling issues. + */ + +static boolean emit_ABS( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]); + struct x86_reg neg = aos_get_internal(cp, IMM_NEGS); + struct x86_reg tmp = aos_get_xmm_reg(cp); + + sse_movaps(cp->func, tmp, arg0); + sse_mulps(cp->func, tmp, neg); + sse_maxps(cp->func, tmp, arg0); + + store_dest(cp, &op->FullDstRegisters[0], tmp); + return TRUE; +} + +static boolean emit_ADD( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]); + struct x86_reg arg1 = fetch_src(cp, &op->FullSrcRegisters[1]); + struct x86_reg dst = get_xmm_writable(cp, arg0); + + sse_addps(cp->func, dst, arg1); + + store_dest(cp, &op->FullDstRegisters[0], dst); + return TRUE; +} + +static boolean emit_COS( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + x87_fld_src(cp, &op->FullSrcRegisters[0], 0); + x87_fcos(cp->func); + x87_fstp_dest4(cp, &op->FullDstRegisters[0]); + return TRUE; +} + +/* The dotproduct instructions don't really do that well in sse: + * XXX: produces wrong results -- disabled. + */ +static boolean emit_DP3( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]); + struct x86_reg arg1 = fetch_src(cp, &op->FullSrcRegisters[1]); + struct x86_reg tmp = aos_get_xmm_reg(cp); + struct x86_reg dst = get_xmm_writable(cp, arg0); + + sse_mulps(cp->func, dst, arg1); + /* Now the hard bit: sum the first 3 values: + */ + sse_movhlps(cp->func, tmp, dst); + sse_addss(cp->func, dst, tmp); /* a*x+c*z, b*y, ?, ? */ + emit_pshufd(cp, tmp, dst, SHUF(Y,X,W,Z)); + sse_addss(cp->func, dst, tmp); + + aos_release_xmm_reg(cp, tmp.idx); + store_scalar_dest(cp, &op->FullDstRegisters[0], dst); + return TRUE; +} + +static boolean emit_DP4( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]); + struct x86_reg arg1 = fetch_src(cp, &op->FullSrcRegisters[1]); + struct x86_reg tmp = aos_get_xmm_reg(cp); + struct x86_reg dst = get_xmm_writable(cp, arg0); + + sse_mulps(cp->func, dst, arg1); + + /* Now the hard bit: sum the values: + */ + sse_movhlps(cp->func, tmp, dst); + sse_addps(cp->func, dst, tmp); /* a*x+c*z, b*y+d*w, a*x+c*z, b*y+d*w */ + emit_pshufd(cp, tmp, dst, SHUF(Y,X,W,Z)); + sse_addss(cp->func, dst, tmp); + + aos_release_xmm_reg(cp, tmp.idx); + store_scalar_dest(cp, &op->FullDstRegisters[0], dst); + return TRUE; +} + +static boolean emit_DPH( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]); + struct x86_reg arg1 = fetch_src(cp, &op->FullSrcRegisters[1]); + struct x86_reg tmp = aos_get_xmm_reg(cp); + struct x86_reg dst = get_xmm_writable(cp, arg0); + + sse_mulps(cp->func, dst, arg1); + + /* Now the hard bit: sum the values (from DP3): + */ + sse_movhlps(cp->func, tmp, dst); + sse_addss(cp->func, dst, tmp); /* a*x+c*z, b*y, ?, ? */ + emit_pshufd(cp, tmp, dst, SHUF(Y,X,W,Z)); + sse_addss(cp->func, dst, tmp); + emit_pshufd(cp, tmp, arg1, SHUF(W,W,W,W)); + sse_addss(cp->func, dst, tmp); + + aos_release_xmm_reg(cp, tmp.idx); + store_scalar_dest(cp, &op->FullDstRegisters[0], dst); + return TRUE; +} + +static boolean emit_DST( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]); + struct x86_reg arg1 = fetch_src(cp, &op->FullSrcRegisters[1]); + struct x86_reg dst = aos_get_xmm_reg(cp); + struct x86_reg tmp = aos_get_xmm_reg(cp); + struct x86_reg ones = aos_get_internal(cp, IMM_ONES); + +/* dst[0] = 1.0 * 1.0F; */ +/* dst[1] = arg0[1] * arg1[1]; */ +/* dst[2] = arg0[2] * 1.0; */ +/* dst[3] = 1.0 * arg1[3]; */ + + emit_shuf_copy2(cp, dst, arg0, ones, SHUF(X,W,Z,Y)); + emit_shuf_copy2(cp, tmp, arg1, ones, SHUF(X,Z,Y,W)); + sse_mulps(cp->func, dst, tmp); + + aos_release_xmm_reg(cp, tmp.idx); + store_dest(cp, &op->FullDstRegisters[0], dst); + return TRUE; +} + +static boolean emit_LG2( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + x87_fld1(cp->func); /* 1 */ + x87_fld_src(cp, &op->FullSrcRegisters[0], 0); /* a0 1 */ + x87_fyl2x(cp->func); /* log2(a0) */ + x87_fstp_dest4(cp, &op->FullDstRegisters[0]); + return TRUE; +} + + +static boolean emit_EX2( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + x87_fld_src(cp, &op->FullSrcRegisters[0], 0); + x87_emit_ex2(cp); + x87_fstp_dest4(cp, &op->FullDstRegisters[0]); + return TRUE; +} + + +static boolean emit_FLR( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg dst = get_dst_ptr(cp, &op->FullDstRegisters[0]); + unsigned writemask = op->FullDstRegisters[0].DstRegister.WriteMask; + int i; + + set_fpu_round_neg_inf( cp ); + + /* Load all sources first to avoid aliasing + */ + for (i = 3; i >= 0; i--) { + if (writemask & (1<<i)) { + x87_fld_src(cp, &op->FullSrcRegisters[0], i); + } + } + + for (i = 0; i < 4; i++) { + if (writemask & (1<<i)) { + x87_fprndint( cp->func ); + x87_fstp(cp->func, x86_make_disp(dst, i*4)); + } + } + + return TRUE; +} + + +static boolean emit_RND( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg dst = get_dst_ptr(cp, &op->FullDstRegisters[0]); + unsigned writemask = op->FullDstRegisters[0].DstRegister.WriteMask; + int i; + + set_fpu_round_nearest( cp ); + + /* Load all sources first to avoid aliasing + */ + for (i = 3; i >= 0; i--) { + if (writemask & (1<<i)) { + x87_fld_src(cp, &op->FullSrcRegisters[0], i); + } + } + + for (i = 0; i < 4; i++) { + if (writemask & (1<<i)) { + x87_fprndint( cp->func ); + x87_fstp(cp->func, x86_make_disp(dst, i*4)); + } + } + + return TRUE; +} + + +static boolean emit_FRC( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg dst = get_dst_ptr(cp, &op->FullDstRegisters[0]); + struct x86_reg st0 = x86_make_reg(file_x87, 0); + struct x86_reg st1 = x86_make_reg(file_x87, 1); + unsigned writemask = op->FullDstRegisters[0].DstRegister.WriteMask; + int i; + + set_fpu_round_neg_inf( cp ); + + /* suck all the source values onto the stack before writing out any + * dst, which may alias... + */ + for (i = 3; i >= 0; i--) { + if (writemask & (1<<i)) { + x87_fld_src(cp, &op->FullSrcRegisters[0], i); + } + } + + for (i = 0; i < 4; i++) { + if (writemask & (1<<i)) { + x87_fld(cp->func, st0); /* a a */ + x87_fprndint( cp->func ); /* flr(a) a */ + x87_fsubp(cp->func, st1); /* frc(a) */ + x87_fstp(cp->func, x86_make_disp(dst, i*4)); + } + } + + return TRUE; +} + + + + + + +static boolean emit_LIT( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg ecx = x86_make_reg( file_REG32, reg_CX ); + unsigned writemask = op->FullDstRegisters[0].DstRegister.WriteMask; + unsigned lit_count = cp->lit_count++; + struct x86_reg result, arg0; + unsigned i; + +#if 1 + /* For absolute correctness, need to spill/invalidate all XMM regs + * too. + */ + for (i = 0; i < 8; i++) { + if (cp->xmm[i].dirty) + spill(cp, i); + aos_release_xmm_reg(cp, i); + } +#endif + + if (writemask != TGSI_WRITEMASK_XYZW) + result = x86_make_disp(cp->machine_EDX, Offset(struct aos_machine, tmp[0])); + else + result = get_dst_ptr(cp, &op->FullDstRegisters[0]); + + + arg0 = fetch_src( cp, &op->FullSrcRegisters[0] ); + if (arg0.file == file_XMM) { + struct x86_reg tmp = x86_make_disp(cp->machine_EDX, + Offset(struct aos_machine, tmp[1])); + sse_movaps( cp->func, tmp, arg0 ); + arg0 = tmp; + } + + + + /* Push caller-save (ie scratch) regs. + */ + x86_cdecl_caller_push_regs( cp->func ); + + /* Push the arguments: + */ + x86_push_imm32( cp->func, lit_count ); + + x86_lea( cp->func, ecx, arg0 ); + x86_push( cp->func, ecx ); + + x86_lea( cp->func, ecx, result ); + x86_push( cp->func, ecx ); + + x86_push( cp->func, cp->machine_EDX ); + + if (lit_count < MAX_LIT_INFO) { + x86_mov( cp->func, ecx, x86_make_disp( cp->machine_EDX, + Offset(struct aos_machine, lit_info) + + lit_count * sizeof(struct lit_info) + + Offset(struct lit_info, func))); + } + else { + x86_mov_reg_imm( cp->func, ecx, (int)aos_do_lit ); + } + + x86_call( cp->func, ecx ); + + x86_pop( cp->func, ecx ); /* fixme... */ + x86_pop( cp->func, ecx ); + x86_pop( cp->func, ecx ); + x86_pop( cp->func, ecx ); + + x86_cdecl_caller_pop_regs( cp->func ); + + if (writemask != TGSI_WRITEMASK_XYZW) { + store_dest( cp, + &op->FullDstRegisters[0], + get_xmm_writable( cp, result ) ); + } + + return TRUE; +} + +#if 0 +static boolean emit_inline_LIT( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg dst = get_dst_ptr(cp, &op->FullDstRegisters[0]); + unsigned writemask = op->FullDstRegisters[0].DstRegister.WriteMask; + + if (writemask & TGSI_WRITEMASK_YZ) { + struct x86_reg st1 = x86_make_reg(file_x87, 1); + struct x86_reg st2 = x86_make_reg(file_x87, 2); + + /* a1' = a1 <= 0 ? 1 : a1; + */ + x87_fldz(cp->func); /* 1 0 */ +#if 1 + x87_fld1(cp->func); /* 1 0 */ +#else + /* Correct but slow due to fp exceptions generated in fyl2x - fix me. + */ + x87_fldz(cp->func); /* 1 0 */ +#endif + x87_fld_src(cp, &op->FullSrcRegisters[0], 1); /* a1 1 0 */ + x87_fcomi(cp->func, st2); /* a1 1 0 */ + x87_fcmovb(cp->func, st1); /* a1' 1 0 */ + x87_fstp(cp->func, st1); /* a1' 0 */ + x87_fstp(cp->func, st1); /* a1' */ + + x87_fld_src(cp, &op->FullSrcRegisters[0], 3); /* a3 a1' */ + x87_fxch(cp->func, st1); /* a1' a3 */ + + + /* Compute pow(a1, a3) + */ + x87_fyl2x(cp->func); /* a3*log2(a1) */ + x87_emit_ex2( cp ); /* 2^(a3*log2(a1)) */ + + + /* a0' = max2(a0, 0): + */ + x87_fldz(cp->func); /* 0 r2 */ + x87_fld_src(cp, &op->FullSrcRegisters[0], 0); /* a0 0 r2 */ + x87_fcomi(cp->func, st1); + x87_fcmovb(cp->func, st1); /* a0' 0 r2 */ + + x87_fst_or_nop(cp->func, writemask, 1, dst); /* result[1] = a0' */ + + x87_fcomi(cp->func, st1); /* a0' 0 r2 */ + x87_fcmovnbe(cp->func, st2); /* r2' 0' r2 */ + + x87_fstp_or_pop(cp->func, writemask, 2, dst); /* 0 r2 */ + x87_fpop(cp->func); /* r2 */ + x87_fpop(cp->func); + } + + if (writemask & TGSI_WRITEMASK_XW) { + x87_fld1(cp->func); + x87_fst_or_nop(cp->func, writemask, 0, dst); + x87_fstp_or_pop(cp->func, writemask, 3, dst); + } + + return TRUE; +} +#endif + + + +static boolean emit_MAX( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]); + struct x86_reg arg1 = fetch_src(cp, &op->FullSrcRegisters[1]); + struct x86_reg dst = get_xmm_writable(cp, arg0); + + sse_maxps(cp->func, dst, arg1); + + store_dest(cp, &op->FullDstRegisters[0], dst); + return TRUE; +} + + +static boolean emit_MIN( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]); + struct x86_reg arg1 = fetch_src(cp, &op->FullSrcRegisters[1]); + struct x86_reg dst = get_xmm_writable(cp, arg0); + + sse_minps(cp->func, dst, arg1); + + store_dest(cp, &op->FullDstRegisters[0], dst); + return TRUE; +} + +static boolean emit_MOV( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]); + struct x86_reg dst = get_xmm_writable(cp, arg0); + + /* potentially nothing to do */ + + store_dest(cp, &op->FullDstRegisters[0], dst); + return TRUE; +} + +static boolean emit_MUL( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]); + struct x86_reg arg1 = fetch_src(cp, &op->FullSrcRegisters[1]); + struct x86_reg dst = get_xmm_writable(cp, arg0); + + sse_mulps(cp->func, dst, arg1); + + store_dest(cp, &op->FullDstRegisters[0], dst); + return TRUE; +} + + +static boolean emit_MAD( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]); + struct x86_reg arg1 = fetch_src(cp, &op->FullSrcRegisters[1]); + struct x86_reg arg2 = fetch_src(cp, &op->FullSrcRegisters[2]); + + /* If we can't clobber old contents of arg0, get a temporary & copy + * it there, then clobber it... + */ + arg0 = get_xmm_writable(cp, arg0); + + sse_mulps(cp->func, arg0, arg1); + sse_addps(cp->func, arg0, arg2); + store_dest(cp, &op->FullDstRegisters[0], arg0); + return TRUE; +} + + + +/* A wrapper for powf(). + * Makes sure it is cdecl and operates on floats. + */ +static float PIPE_CDECL _powerf( float x, float y ) +{ +#if FAST_MATH + return util_fast_pow(x, y); +#else + return powf( x, y ); +#endif +} + +#if FAST_MATH +static float PIPE_CDECL _exp2(float x) +{ + return util_fast_exp2(x); +} +#endif + + +/* Really not sufficient -- need to check for conditions that could + * generate inf/nan values, which will slow things down hugely. + */ +static boolean emit_POW( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ +#if 0 + x87_fld_src(cp, &op->FullSrcRegisters[1], 0); /* a1.x */ + x87_fld_src(cp, &op->FullSrcRegisters[0], 0); /* a0.x a1.x */ + x87_fyl2x(cp->func); /* a1*log2(a0) */ + + x87_emit_ex2( cp ); /* 2^(a1*log2(a0)) */ + + x87_fstp_dest4(cp, &op->FullDstRegisters[0]); +#else + uint i; + + /* For absolute correctness, need to spill/invalidate all XMM regs + * too. + */ + for (i = 0; i < 8; i++) { + if (cp->xmm[i].dirty) + spill(cp, i); + aos_release_xmm_reg(cp, i); + } + + /* Push caller-save (ie scratch) regs. + */ + x86_cdecl_caller_push_regs( cp->func ); + + x86_lea( cp->func, cp->stack_ESP, x86_make_disp(cp->stack_ESP, -8) ); + + x87_fld_src( cp, &op->FullSrcRegisters[1], 0 ); + x87_fstp( cp->func, x86_make_disp( cp->stack_ESP, 4 ) ); + x87_fld_src( cp, &op->FullSrcRegisters[0], 0 ); + x87_fstp( cp->func, x86_make_disp( cp->stack_ESP, 0 ) ); + + /* tmp_EAX has been pushed & will be restored below */ + x86_mov_reg_imm( cp->func, cp->tmp_EAX, (unsigned long) _powerf ); + x86_call( cp->func, cp->tmp_EAX ); + + x86_lea( cp->func, cp->stack_ESP, x86_make_disp(cp->stack_ESP, 8) ); + + x86_cdecl_caller_pop_regs( cp->func ); + + /* Note retval on x87 stack: + */ + cp->func->x87_stack++; + + x87_fstp_dest4( cp, &op->FullDstRegisters[0] ); +#endif + return TRUE; +} + + +#if FAST_MATH +static boolean emit_EXPBASE2( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + uint i; + + /* For absolute correctness, need to spill/invalidate all XMM regs + * too. + */ + for (i = 0; i < 8; i++) { + if (cp->xmm[i].dirty) + spill(cp, i); + aos_release_xmm_reg(cp, i); + } + + /* Push caller-save (ie scratch) regs. + */ + x86_cdecl_caller_push_regs( cp->func ); + + x86_lea( cp->func, cp->stack_ESP, x86_make_disp(cp->stack_ESP, -4) ); + + x87_fld_src( cp, &op->FullSrcRegisters[0], 0 ); + x87_fstp( cp->func, x86_make_disp( cp->stack_ESP, 0 ) ); + + /* tmp_EAX has been pushed & will be restored below */ + x86_mov_reg_imm( cp->func, cp->tmp_EAX, (unsigned long) _exp2 ); + x86_call( cp->func, cp->tmp_EAX ); + + x86_lea( cp->func, cp->stack_ESP, x86_make_disp(cp->stack_ESP, 4) ); + + x86_cdecl_caller_pop_regs( cp->func ); + + /* Note retval on x87 stack: + */ + cp->func->x87_stack++; + + x87_fstp_dest4( cp, &op->FullDstRegisters[0] ); + + return TRUE; +} +#endif + + +static boolean emit_RCP( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]); + struct x86_reg dst = aos_get_xmm_reg(cp); + + if (cp->have_sse2) { + sse2_rcpss(cp->func, dst, arg0); + /* extend precision here... + */ + } + else { + struct x86_reg ones = aos_get_internal(cp, IMM_ONES); + sse_movss(cp->func, dst, ones); + sse_divss(cp->func, dst, arg0); + } + + store_scalar_dest(cp, &op->FullDstRegisters[0], dst); + return TRUE; +} + + +/* Although rsqrtps() and rcpps() are low precision on some/all SSE + * implementations, it is possible to improve its precision at + * fairly low cost, using a newton/raphson step, as below: + * + * x1 = 2 * rcpps(a) - a * rcpps(a) * rcpps(a) + * x1 = 0.5 * rsqrtps(a) * [3.0 - (a * rsqrtps(a))* rsqrtps(a)] + * or: + * x1 = rsqrtps(a) * [1.5 - .5 * a * rsqrtps(a) * rsqrtps(a)] + * + * + * See: http://softwarecommunity.intel.com/articles/eng/1818.htm + */ +static boolean emit_RSQ( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + + if (0) { + struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]); + struct x86_reg r = aos_get_xmm_reg(cp); + sse_rsqrtss(cp->func, r, arg0); + store_scalar_dest(cp, &op->FullDstRegisters[0], r); + return TRUE; + } + else { + struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]); + struct x86_reg r = aos_get_xmm_reg(cp); + + struct x86_reg neg_half = get_reg_ptr( cp, AOS_FILE_INTERNAL, IMM_RSQ ); + struct x86_reg one_point_five = x86_make_disp( neg_half, 4 ); + struct x86_reg src = get_xmm_writable( cp, arg0 ); + + sse_rsqrtss( cp->func, r, src ); /* rsqrtss(a) */ + sse_mulss( cp->func, src, neg_half ); /* -.5 * a */ + sse_mulss( cp->func, src, r ); /* -.5 * a * r */ + sse_mulss( cp->func, src, r ); /* -.5 * a * r * r */ + sse_addss( cp->func, src, one_point_five ); /* 1.5 - .5 * a * r * r */ + sse_mulss( cp->func, r, src ); /* r * (1.5 - .5 * a * r * r) */ + + store_scalar_dest(cp, &op->FullDstRegisters[0], r); + return TRUE; + } +} + + +static boolean emit_SGE( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]); + struct x86_reg arg1 = fetch_src(cp, &op->FullSrcRegisters[1]); + struct x86_reg ones = aos_get_internal(cp, IMM_ONES); + struct x86_reg dst = get_xmm_writable(cp, arg0); + + sse_cmpps(cp->func, dst, arg1, cc_NotLessThan); + sse_andps(cp->func, dst, ones); + + store_dest(cp, &op->FullDstRegisters[0], dst); + return TRUE; +} + +static boolean emit_SIN( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + x87_fld_src(cp, &op->FullSrcRegisters[0], 0); + x87_fsin(cp->func); + x87_fstp_dest4(cp, &op->FullDstRegisters[0]); + return TRUE; +} + + + +static boolean emit_SLT( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]); + struct x86_reg arg1 = fetch_src(cp, &op->FullSrcRegisters[1]); + struct x86_reg ones = aos_get_internal(cp, IMM_ONES); + struct x86_reg dst = get_xmm_writable(cp, arg0); + + sse_cmpps(cp->func, dst, arg1, cc_LessThan); + sse_andps(cp->func, dst, ones); + + store_dest(cp, &op->FullDstRegisters[0], dst); + return TRUE; +} + +static boolean emit_SUB( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]); + struct x86_reg arg1 = fetch_src(cp, &op->FullSrcRegisters[1]); + struct x86_reg dst = get_xmm_writable(cp, arg0); + + sse_subps(cp->func, dst, arg1); + + store_dest(cp, &op->FullDstRegisters[0], dst); + return TRUE; +} + + +static boolean emit_XPD( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) +{ + struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]); + struct x86_reg arg1 = fetch_src(cp, &op->FullSrcRegisters[1]); + struct x86_reg tmp0 = aos_get_xmm_reg(cp); + struct x86_reg tmp1 = aos_get_xmm_reg(cp); + + emit_pshufd(cp, tmp1, arg1, SHUF(Y, Z, X, W)); + sse_mulps(cp->func, tmp1, arg0); + emit_pshufd(cp, tmp0, arg0, SHUF(Y, Z, X, W)); + sse_mulps(cp->func, tmp0, arg1); + sse_subps(cp->func, tmp1, tmp0); + sse_shufps(cp->func, tmp1, tmp1, SHUF(Y, Z, X, W)); + +/* dst[2] = arg0[0] * arg1[1] - arg0[1] * arg1[0]; */ +/* dst[0] = arg0[1] * arg1[2] - arg0[2] * arg1[1]; */ +/* dst[1] = arg0[2] * arg1[0] - arg0[0] * arg1[2]; */ +/* dst[3] is undef */ + + + aos_release_xmm_reg(cp, tmp0.idx); + store_dest(cp, &op->FullDstRegisters[0], tmp1); + return TRUE; +} + + + +static boolean +emit_instruction( struct aos_compilation *cp, + struct tgsi_full_instruction *inst ) +{ + x87_assert_stack_empty(cp->func); + + switch( inst->Instruction.Opcode ) { + case TGSI_OPCODE_MOV: + return emit_MOV( cp, inst ); + + case TGSI_OPCODE_LIT: + return emit_LIT(cp, inst); + + case TGSI_OPCODE_RCP: + return emit_RCP(cp, inst); + + case TGSI_OPCODE_RSQ: + return emit_RSQ(cp, inst); + + case TGSI_OPCODE_EXP: + /*return emit_EXP(cp, inst);*/ + return FALSE; + + case TGSI_OPCODE_LOG: + /*return emit_LOG(cp, inst);*/ + return FALSE; + + case TGSI_OPCODE_MUL: + return emit_MUL(cp, inst); + + case TGSI_OPCODE_ADD: + return emit_ADD(cp, inst); + + case TGSI_OPCODE_DP3: + return emit_DP3(cp, inst); + + case TGSI_OPCODE_DP4: + return emit_DP4(cp, inst); + + case TGSI_OPCODE_DST: + return emit_DST(cp, inst); + + case TGSI_OPCODE_MIN: + return emit_MIN(cp, inst); + + case TGSI_OPCODE_MAX: + return emit_MAX(cp, inst); + + case TGSI_OPCODE_SLT: + return emit_SLT(cp, inst); + + case TGSI_OPCODE_SGE: + return emit_SGE(cp, inst); + + case TGSI_OPCODE_MAD: + return emit_MAD(cp, inst); + + case TGSI_OPCODE_SUB: + return emit_SUB(cp, inst); + + case TGSI_OPCODE_LERP: +// return emit_LERP(cp, inst); + return FALSE; + + case TGSI_OPCODE_FRAC: + return emit_FRC(cp, inst); + + case TGSI_OPCODE_CLAMP: +// return emit_CLAMP(cp, inst); + return FALSE; + + case TGSI_OPCODE_FLOOR: + return emit_FLR(cp, inst); + + case TGSI_OPCODE_ROUND: + return emit_RND(cp, inst); + + case TGSI_OPCODE_EXPBASE2: +#if FAST_MATH + return emit_EXPBASE2(cp, inst); +#elif 0 + /* this seems to fail for "larger" exponents. + * See glean tvertProg1's EX2 test. + */ + return emit_EX2(cp, inst); +#else + return FALSE; +#endif + + case TGSI_OPCODE_LOGBASE2: + return emit_LG2(cp, inst); + + case TGSI_OPCODE_POWER: + return emit_POW(cp, inst); + + case TGSI_OPCODE_CROSSPRODUCT: + return emit_XPD(cp, inst); + + case TGSI_OPCODE_ABS: + return emit_ABS(cp, inst); + + case TGSI_OPCODE_DPH: + return emit_DPH(cp, inst); + + case TGSI_OPCODE_COS: + return emit_COS(cp, inst); + + case TGSI_OPCODE_SIN: + return emit_SIN(cp, inst); + + case TGSI_OPCODE_END: + return TRUE; + + default: + return FALSE; + } +} + + +static boolean emit_viewport( struct aos_compilation *cp ) +{ + struct x86_reg pos = aos_get_shader_reg_xmm(cp, + TGSI_FILE_OUTPUT, + cp->vaos->draw->vs.position_output ); + + struct x86_reg scale = x86_make_disp(cp->machine_EDX, + Offset(struct aos_machine, scale)); + + struct x86_reg translate = x86_make_disp(cp->machine_EDX, + Offset(struct aos_machine, translate)); + + sse_mulps(cp->func, pos, scale); + sse_addps(cp->func, pos, translate); + + aos_adopt_xmm_reg( cp, + pos, + TGSI_FILE_OUTPUT, + cp->vaos->draw->vs.position_output, + TRUE ); + return TRUE; +} + + +/* This is useful to be able to see the results on softpipe. Doesn't + * do proper clipping, just assumes the backend can do it during + * rasterization -- for debug only... + */ +static boolean emit_rhw_viewport( struct aos_compilation *cp ) +{ + struct x86_reg tmp = aos_get_xmm_reg(cp); + struct x86_reg pos = aos_get_shader_reg_xmm(cp, + TGSI_FILE_OUTPUT, + cp->vaos->draw->vs.position_output); + + struct x86_reg scale = x86_make_disp(cp->machine_EDX, + Offset(struct aos_machine, scale)); + + struct x86_reg translate = x86_make_disp(cp->machine_EDX, + Offset(struct aos_machine, translate)); + + + + emit_pshufd(cp, tmp, pos, SHUF(W, W, W, W)); + sse2_rcpss(cp->func, tmp, tmp); + sse_shufps(cp->func, tmp, tmp, SHUF(X, X, X, X)); + + sse_mulps(cp->func, pos, scale); + sse_mulps(cp->func, pos, tmp); + sse_addps(cp->func, pos, translate); + + /* Set pos[3] = w + */ + mask_write(cp, pos, tmp, TGSI_WRITEMASK_W); + + aos_adopt_xmm_reg( cp, + pos, + TGSI_FILE_OUTPUT, + cp->vaos->draw->vs.position_output, + TRUE ); + return TRUE; +} + + +#if 0 +static boolean note_immediate( struct aos_compilation *cp, + struct tgsi_full_immediate *imm ) +{ + unsigned pos = cp->num_immediates++; + unsigned j; + + for (j = 0; j < imm->Immediate.Size; j++) { + cp->vaos->machine->immediate[pos][j] = imm->u.ImmediateFloat32[j].Float; + } + + return TRUE; +} +#endif + + + + +static void find_last_write_outputs( struct aos_compilation *cp ) +{ + struct tgsi_parse_context parse; + unsigned this_instruction = 0; + unsigned i; + + tgsi_parse_init( &parse, cp->vaos->base.vs->state.tokens ); + + while (!tgsi_parse_end_of_tokens( &parse )) { + + tgsi_parse_token( &parse ); + + if (parse.FullToken.Token.Type != TGSI_TOKEN_TYPE_INSTRUCTION) + continue; + + for (i = 0; i < TGSI_FULL_MAX_DST_REGISTERS; i++) { + if (parse.FullToken.FullInstruction.FullDstRegisters[i].DstRegister.File == + TGSI_FILE_OUTPUT) + { + unsigned idx = parse.FullToken.FullInstruction.FullDstRegisters[i].DstRegister.Index; + cp->output_last_write[idx] = this_instruction; + } + } + + this_instruction++; + } + + tgsi_parse_free( &parse ); +} + + +#define ARG_MACHINE 1 +#define ARG_START_ELTS 2 +#define ARG_COUNT 3 +#define ARG_OUTBUF 4 + + +static boolean build_vertex_program( struct draw_vs_varient_aos_sse *varient, + boolean linear ) +{ + struct tgsi_parse_context parse; + struct aos_compilation cp; + unsigned fixup, label; + + util_init_math(); + + tgsi_parse_init( &parse, varient->base.vs->state.tokens ); + + memset(&cp, 0, sizeof(cp)); + + cp.insn_counter = 1; + cp.vaos = varient; + cp.have_sse2 = 1; + cp.func = &varient->func[ linear ? 0 : 1 ]; + + cp.tmp_EAX = x86_make_reg(file_REG32, reg_AX); + cp.idx_EBX = x86_make_reg(file_REG32, reg_BX); + cp.outbuf_ECX = x86_make_reg(file_REG32, reg_CX); + cp.machine_EDX = x86_make_reg(file_REG32, reg_DX); + cp.count_ESI = x86_make_reg(file_REG32, reg_SI); + cp.temp_EBP = x86_make_reg(file_REG32, reg_BP); + cp.stack_ESP = x86_make_reg( file_REG32, reg_SP ); + + x86_init_func(cp.func); + + find_last_write_outputs(&cp); + + x86_push(cp.func, cp.idx_EBX); + x86_push(cp.func, cp.count_ESI); + x86_push(cp.func, cp.temp_EBP); + + + /* Load arguments into regs: + */ + x86_mov(cp.func, cp.machine_EDX, x86_fn_arg(cp.func, ARG_MACHINE)); + x86_mov(cp.func, cp.idx_EBX, x86_fn_arg(cp.func, ARG_START_ELTS)); + x86_mov(cp.func, cp.count_ESI, x86_fn_arg(cp.func, ARG_COUNT)); + x86_mov(cp.func, cp.outbuf_ECX, x86_fn_arg(cp.func, ARG_OUTBUF)); + + + /* Compare count to zero and possibly bail. + */ + x86_xor(cp.func, cp.tmp_EAX, cp.tmp_EAX); + x86_cmp(cp.func, cp.count_ESI, cp.tmp_EAX); + fixup = x86_jcc_forward(cp.func, cc_E); + + + save_fpu_state( &cp ); + set_fpu_round_nearest( &cp ); + + /* Note address for loop jump + */ + label = x86_get_label(cp.func); + { + /* Fetch inputs... TODO: fetch lazily... + */ + if (!aos_fetch_inputs( &cp, linear )) + goto fail; + + /* Emit the shader: + */ + while( !tgsi_parse_end_of_tokens( &parse ) && !cp.error ) + { + tgsi_parse_token( &parse ); + + switch (parse.FullToken.Token.Type) { + case TGSI_TOKEN_TYPE_IMMEDIATE: +#if 0 + if (!note_immediate( &cp, &parse.FullToken.FullImmediate )) + goto fail; +#endif + break; + + case TGSI_TOKEN_TYPE_INSTRUCTION: + if (DISASSEM) + tgsi_dump_instruction( &parse.FullToken.FullInstruction, cp.insn_counter ); + + if (!emit_instruction( &cp, &parse.FullToken.FullInstruction )) + goto fail; + break; + } + + x87_assert_stack_empty(cp.func); + cp.insn_counter++; + + if (DISASSEM) + debug_printf("\n"); + } + + + { + unsigned i; + for (i = 0; i < 8; i++) { + if (cp.xmm[i].file != TGSI_FILE_OUTPUT) { + cp.xmm[i].file = TGSI_FILE_NULL; + cp.xmm[i].dirty = 0; + } + } + } + + if (cp.error) + goto fail; + + if (cp.vaos->base.key.clip) { + /* not really handling clipping, just do the rhw so we can + * see the results... + */ + emit_rhw_viewport(&cp); + } + else if (cp.vaos->base.key.viewport) { + emit_viewport(&cp); + } + + /* Emit output... TODO: do this eagerly after the last write to a + * given output. + */ + if (!aos_emit_outputs( &cp )) + goto fail; + + + /* Next vertex: + */ + x86_lea(cp.func, + cp.outbuf_ECX, + x86_make_disp(cp.outbuf_ECX, + cp.vaos->base.key.output_stride)); + + /* Incr index + */ + if (linear) { + x86_inc(cp.func, cp.idx_EBX); + } + else { + x86_lea(cp.func, cp.idx_EBX, x86_make_disp(cp.idx_EBX, 4)); + } + + } + /* decr count, loop if not zero + */ + x86_dec(cp.func, cp.count_ESI); + x86_jcc(cp.func, cc_NZ, label); + + restore_fpu_state(&cp); + + /* Land forward jump here: + */ + x86_fixup_fwd_jump(cp.func, fixup); + + /* Exit mmx state? + */ + if (cp.func->need_emms) + mmx_emms(cp.func); + + x86_pop(cp.func, cp.temp_EBP); + x86_pop(cp.func, cp.count_ESI); + x86_pop(cp.func, cp.idx_EBX); + + x87_assert_stack_empty(cp.func); + x86_ret(cp.func); + + tgsi_parse_free( &parse ); + return !cp.error; + + fail: + tgsi_parse_free( &parse ); + return FALSE; +} + + + +static void vaos_set_buffer( struct draw_vs_varient *varient, + unsigned buf, + const void *ptr, + unsigned stride ) +{ + struct draw_vs_varient_aos_sse *vaos = (struct draw_vs_varient_aos_sse *)varient; + unsigned i; + + for (i = 0; i < vaos->base.key.nr_inputs; i++) { + if (vaos->base.key.element[i].in.buffer == buf) { + vaos->attrib[i].input_ptr = ((char *)ptr + + vaos->base.key.element[i].in.offset); + vaos->attrib[i].input_stride = stride; + } + } +} + + + +static void PIPE_CDECL vaos_run_elts( struct draw_vs_varient *varient, + const unsigned *elts, + unsigned count, + void *output_buffer ) +{ + struct draw_vs_varient_aos_sse *vaos = (struct draw_vs_varient_aos_sse *)varient; + struct aos_machine *machine = vaos->draw->vs.aos_machine; + + machine->internal[IMM_PSIZE][0] = vaos->draw->rasterizer->point_size; + machine->constants = vaos->draw->vs.aligned_constants; + machine->immediates = vaos->base.vs->immediates; + machine->attrib = vaos->attrib; + + vaos->gen_run_elts( machine, + elts, + count, + output_buffer ); +} + +static void PIPE_CDECL vaos_run_linear( struct draw_vs_varient *varient, + unsigned start, + unsigned count, + void *output_buffer ) +{ + struct draw_vs_varient_aos_sse *vaos = (struct draw_vs_varient_aos_sse *)varient; + struct aos_machine *machine = vaos->draw->vs.aos_machine; + + machine->internal[IMM_PSIZE][0] = vaos->draw->rasterizer->point_size; + machine->constants = vaos->draw->vs.aligned_constants; + machine->immediates = vaos->base.vs->immediates; + machine->attrib = vaos->attrib; + + vaos->gen_run_linear( machine, + start, + count, + output_buffer ); +} + + + +static void vaos_destroy( struct draw_vs_varient *varient ) +{ + struct draw_vs_varient_aos_sse *vaos = (struct draw_vs_varient_aos_sse *)varient; + + FREE( vaos->attrib ); + + x86_release_func( &vaos->func[0] ); + x86_release_func( &vaos->func[1] ); + + FREE(vaos); +} + + + +static struct draw_vs_varient *varient_aos_sse( struct draw_vertex_shader *vs, + const struct draw_vs_varient_key *key ) +{ + struct draw_vs_varient_aos_sse *vaos = CALLOC_STRUCT(draw_vs_varient_aos_sse); + + if (!vaos) + goto fail; + + vaos->base.key = *key; + vaos->base.vs = vs; + vaos->base.set_input = vaos_set_buffer; + vaos->base.destroy = vaos_destroy; + vaos->base.run_linear = vaos_run_linear; + vaos->base.run_elts = vaos_run_elts; + + vaos->draw = vs->draw; + + vaos->attrib = MALLOC( key->nr_inputs * sizeof(vaos->attrib[0]) ); + if (!vaos->attrib) + goto fail; + +#if 0 + tgsi_dump(vs->state.tokens, 0); +#endif + + if (!build_vertex_program( vaos, TRUE )) + goto fail; + + if (!build_vertex_program( vaos, FALSE )) + goto fail; + + vaos->gen_run_linear = (vaos_run_linear_func)x86_get_func(&vaos->func[0]); + if (!vaos->gen_run_linear) + goto fail; + + vaos->gen_run_elts = (vaos_run_elts_func)x86_get_func(&vaos->func[1]); + if (!vaos->gen_run_elts) + goto fail; + + return &vaos->base; + + fail: + if (vaos && vaos->attrib) + FREE(vaos->attrib); + + if (vaos) + x86_release_func( &vaos->func[0] ); + + if (vaos) + x86_release_func( &vaos->func[1] ); + + FREE(vaos); + + return NULL; +} + + +struct draw_vs_varient *draw_vs_varient_aos_sse( struct draw_vertex_shader *vs, + const struct draw_vs_varient_key *key ) +{ + struct draw_vs_varient *varient = varient_aos_sse( vs, key ); + + if (varient == NULL) { + varient = draw_vs_varient_generic( vs, key ); + } + + return varient; +} + + + +#endif /* PIPE_ARCH_X86 */ diff --git a/src/gallium/auxiliary/draw/draw_vs_aos.h b/src/gallium/auxiliary/draw/draw_vs_aos.h new file mode 100644 index 0000000000..64e021ff6b --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_vs_aos.h @@ -0,0 +1,248 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + +#ifndef DRAW_VS_AOS_H +#define DRAW_VS_AOS_H + +#include "pipe/p_config.h" + +#ifdef PIPE_ARCH_X86 + +struct tgsi_token; +struct x86_function; + +#include "pipe/p_state.h" +#include "rtasm/rtasm_x86sse.h" + + + + + +#define X 0 +#define Y 1 +#define Z 2 +#define W 3 + +#define MAX_INPUTS PIPE_MAX_ATTRIBS +#define MAX_OUTPUTS PIPE_MAX_ATTRIBS +#define MAX_TEMPS PIPE_MAX_ATTRIBS /* say */ +#define MAX_CONSTANTS PIPE_MAX_ATTRIBS /* say */ +#define MAX_IMMEDIATES PIPE_MAX_ATTRIBS /* say */ +#define MAX_INTERNALS 8 + +#define AOS_FILE_INTERNAL TGSI_FILE_COUNT + +#define FPU_RND_NEG 1 +#define FPU_RND_NEAREST 2 + +struct aos_machine; +typedef void (PIPE_CDECL *lit_func)( struct aos_machine *, + float *result, + const float *in, + unsigned count ); + +void PIPE_CDECL aos_do_lit( struct aos_machine *machine, + float *result, + const float *in, + unsigned count ); + +struct shine_tab { + float exponent; + float values[258]; + unsigned last_used; +}; + +struct lit_info { + lit_func func; + struct shine_tab *shine_tab; +}; + +#define MAX_SHINE_TAB 4 +#define MAX_LIT_INFO 16 + +struct aos_attrib { + const void *input_ptr; + unsigned input_stride; +}; + + + + +/* This is the temporary storage used by all the aos_sse vs varients. + * Create one per context and reuse by passing a pointer in at + * vs_varient creation?? + */ +struct aos_machine { + float input [MAX_INPUTS ][4]; + float output [MAX_OUTPUTS ][4]; + float temp [MAX_TEMPS ][4]; + float internal [MAX_INTERNALS ][4]; + + float scale[4]; /* viewport */ + float translate[4]; /* viewport */ + + float tmp[2][4]; /* scratch space for LIT */ + + struct shine_tab shine_tab[MAX_SHINE_TAB]; + struct lit_info lit_info[MAX_LIT_INFO]; + unsigned now; + + + ushort fpu_rnd_nearest; + ushort fpu_rnd_neg_inf; + ushort fpu_restore; + ushort fpucntl; /* one of FPU_* above */ + + const float (*immediates)[4]; /* points to shader data */ + const float (*constants)[4]; /* points to draw data */ + + const struct aos_attrib *attrib; /* points to ? */ +}; + + + + +struct aos_compilation { + struct x86_function *func; + struct draw_vs_varient_aos_sse *vaos; + + unsigned insn_counter; + unsigned num_immediates; + unsigned count; + unsigned lit_count; + + struct { + unsigned idx:16; + unsigned file:8; + unsigned dirty:8; + unsigned last_used; + } xmm[8]; + + unsigned x86_reg[2]; /* one of X86_* */ + + boolean input_fetched[PIPE_MAX_ATTRIBS]; + unsigned output_last_write[PIPE_MAX_ATTRIBS]; + + boolean have_sse2; + boolean error; + short fpucntl; + + /* these are actually known values, but putting them in a struct + * like this is helpful to keep them in sync across the file. + */ + struct x86_reg tmp_EAX; + struct x86_reg idx_EBX; /* either start+i or &elt[i] */ + struct x86_reg outbuf_ECX; + struct x86_reg machine_EDX; + struct x86_reg count_ESI; /* decrements to zero */ + struct x86_reg temp_EBP; + struct x86_reg stack_ESP; +}; + +struct x86_reg aos_get_xmm_reg( struct aos_compilation *cp ); +void aos_release_xmm_reg( struct aos_compilation *cp, unsigned idx ); + +void aos_adopt_xmm_reg( struct aos_compilation *cp, + struct x86_reg reg, + unsigned file, + unsigned idx, + unsigned dirty ); + +struct x86_reg aos_get_shader_reg( struct aos_compilation *cp, + unsigned file, + unsigned idx ); + +boolean aos_fetch_inputs( struct aos_compilation *cp, + boolean linear ); + +boolean aos_emit_outputs( struct aos_compilation *cp ); + + +#define IMM_ONES 0 /* 1, 1,1,1 */ +#define IMM_SWZ 1 /* 1,-1,0, 0xffffffff */ +#define IMM_IDENTITY 2 /* 0, 0,0,1 */ +#define IMM_INV_255 3 /* 1/255, 1/255, 1/255, 1/255 */ +#define IMM_255 4 /* 255, 255, 255, 255 */ +#define IMM_NEGS 5 /* -1,-1,-1,-1 */ +#define IMM_RSQ 6 /* -.5,1.5,_,_ */ +#define IMM_PSIZE 7 /* not really an immediate - updated each run */ + +struct x86_reg aos_get_internal( struct aos_compilation *cp, + unsigned imm ); +struct x86_reg aos_get_internal_xmm( struct aos_compilation *cp, + unsigned imm ); + + +#define ERROR(cp, msg) \ +do { \ + if (0) debug_printf("%s: x86 translation failed: %s\n", __FUNCTION__, msg); \ + cp->error = 1; \ +} while (0) + + +#define X86_NULL 0 +#define X86_IMMEDIATES 1 +#define X86_CONSTANTS 2 +#define X86_ATTRIBS 3 + +struct x86_reg aos_get_x86( struct aos_compilation *cp, + unsigned which_reg, + unsigned value ); + + +typedef void (PIPE_CDECL *vaos_run_elts_func)( struct aos_machine *, + const unsigned *elts, + unsigned count, + void *output_buffer); + +typedef void (PIPE_CDECL *vaos_run_linear_func)( struct aos_machine *, + unsigned start, + unsigned count, + void *output_buffer); + + +struct draw_vs_varient_aos_sse { + struct draw_vs_varient base; + struct draw_context *draw; + + struct aos_attrib *attrib; + + vaos_run_linear_func gen_run_linear; + vaos_run_elts_func gen_run_elts; + + + struct x86_function func[2]; +}; + + +#endif + +#endif + diff --git a/src/gallium/auxiliary/draw/draw_vs_aos_io.c b/src/gallium/auxiliary/draw/draw_vs_aos_io.c new file mode 100644 index 0000000000..ab3c5b94a5 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_vs_aos_io.c @@ -0,0 +1,323 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +#include "util/u_memory.h" +#include "pipe/p_shader_tokens.h" +#include "tgsi/tgsi_parse.h" +#include "tgsi/tgsi_util.h" +#include "tgsi/tgsi_exec.h" +#include "draw_vs.h" +#include "draw_vs_aos.h" +#include "draw_vertex.h" + +#include "rtasm/rtasm_x86sse.h" + +#ifdef PIPE_ARCH_X86 + +/* Note - don't yet have to worry about interacting with the code in + * draw_vs_aos.c as there is no intermingling of generated code... + * That may have to change, we'll see. + */ +static void emit_load_R32G32B32A32( struct aos_compilation *cp, + struct x86_reg data, + struct x86_reg src_ptr ) +{ + sse_movups(cp->func, data, src_ptr); +} + +static void emit_load_R32G32B32( struct aos_compilation *cp, + struct x86_reg data, + struct x86_reg src_ptr ) +{ + sse_movss(cp->func, data, x86_make_disp(src_ptr, 8)); + sse_shufps(cp->func, data, aos_get_internal_xmm( cp, IMM_IDENTITY ), SHUF(X,Y,Z,W) ); + sse_shufps(cp->func, data, data, SHUF(Y,Z,X,W) ); + sse_movlps(cp->func, data, src_ptr); +} + +static void emit_load_R32G32( struct aos_compilation *cp, + struct x86_reg data, + struct x86_reg src_ptr ) +{ + sse_movups(cp->func, data, aos_get_internal_xmm( cp, IMM_IDENTITY ) ); + sse_movlps(cp->func, data, src_ptr); +} + + +static void emit_load_R32( struct aos_compilation *cp, + struct x86_reg data, + struct x86_reg src_ptr ) +{ + sse_movss(cp->func, data, src_ptr); + sse_orps(cp->func, data, aos_get_internal_xmm( cp, IMM_IDENTITY ) ); +} + + +static void emit_load_R8G8B8A8_UNORM( struct aos_compilation *cp, + struct x86_reg data, + struct x86_reg src_ptr ) +{ + sse_movss(cp->func, data, src_ptr); + sse2_punpcklbw(cp->func, data, aos_get_internal_xmm( cp, IMM_IDENTITY )); + sse2_punpcklbw(cp->func, data, aos_get_internal_xmm( cp, IMM_IDENTITY )); + sse2_cvtdq2ps(cp->func, data, data); + sse_mulps(cp->func, data, aos_get_internal(cp, IMM_INV_255)); +} + + + +static void get_src_ptr( struct aos_compilation *cp, + struct x86_reg src, + struct x86_reg elt, + unsigned a ) +{ + struct x86_reg attrib = x86_make_disp(aos_get_x86( cp, 0, X86_ATTRIBS ), + a * sizeof(struct aos_attrib)); + + struct x86_reg input_ptr = x86_make_disp(attrib, + Offset(struct aos_attrib, input_ptr)); + + struct x86_reg input_stride = x86_make_disp(attrib, + Offset(struct aos_attrib, input_stride)); + + /* Calculate pointer to current attrib: + */ + x86_mov(cp->func, src, input_stride); + x86_imul(cp->func, src, elt); + x86_add(cp->func, src, input_ptr); +} + + +/* Extended swizzles? Maybe later. + */ +static void emit_swizzle( struct aos_compilation *cp, + struct x86_reg dest, + struct x86_reg src, + ubyte shuffle ) +{ + sse_shufps(cp->func, dest, src, shuffle); +} + + +static boolean load_input( struct aos_compilation *cp, + unsigned idx, + boolean linear ) +{ + unsigned format = cp->vaos->base.key.element[idx].in.format; + struct x86_reg src = cp->tmp_EAX; + struct x86_reg dataXMM = aos_get_xmm_reg(cp); + + /* Figure out source pointer address: + */ + get_src_ptr(cp, + src, + linear ? cp->idx_EBX : x86_deref(cp->idx_EBX), + idx); + + src = x86_deref(src); + + aos_adopt_xmm_reg( cp, + dataXMM, + TGSI_FILE_INPUT, + idx, + TRUE ); + + switch (format) { + case PIPE_FORMAT_R32_FLOAT: + emit_load_R32(cp, dataXMM, src); + break; + case PIPE_FORMAT_R32G32_FLOAT: + emit_load_R32G32(cp, dataXMM, src); + break; + case PIPE_FORMAT_R32G32B32_FLOAT: + emit_load_R32G32B32(cp, dataXMM, src); + break; + case PIPE_FORMAT_R32G32B32A32_FLOAT: + emit_load_R32G32B32A32(cp, dataXMM, src); + break; + case PIPE_FORMAT_B8G8R8A8_UNORM: + emit_load_R8G8B8A8_UNORM(cp, dataXMM, src); + emit_swizzle(cp, dataXMM, dataXMM, SHUF(Z,Y,X,W)); + break; + case PIPE_FORMAT_R8G8B8A8_UNORM: + emit_load_R8G8B8A8_UNORM(cp, dataXMM, src); + break; + default: + ERROR(cp, "unhandled input format"); + return FALSE; + } + + return TRUE; +} + + +boolean aos_fetch_inputs( struct aos_compilation *cp, boolean linear ) +{ + unsigned i; + + for (i = 0; i < cp->vaos->base.key.nr_inputs; i++) { + if (!load_input( cp, i, linear )) + return FALSE; + cp->insn_counter++; + } + + return TRUE; +} + + + + + + + +static void emit_store_R32G32B32A32( struct aos_compilation *cp, + struct x86_reg dst_ptr, + struct x86_reg dataXMM ) +{ + sse_movups(cp->func, dst_ptr, dataXMM); +} + +static void emit_store_R32G32B32( struct aos_compilation *cp, + struct x86_reg dst_ptr, + struct x86_reg dataXMM ) +{ + sse_movlps(cp->func, dst_ptr, dataXMM); + sse_shufps(cp->func, dataXMM, dataXMM, SHUF(Z,Z,Z,Z) ); /* NOTE! destructive */ + sse_movss(cp->func, x86_make_disp(dst_ptr,8), dataXMM); +} + +static void emit_store_R32G32( struct aos_compilation *cp, + struct x86_reg dst_ptr, + struct x86_reg dataXMM ) +{ + sse_movlps(cp->func, dst_ptr, dataXMM); +} + +static void emit_store_R32( struct aos_compilation *cp, + struct x86_reg dst_ptr, + struct x86_reg dataXMM ) +{ + sse_movss(cp->func, dst_ptr, dataXMM); +} + + + +static void emit_store_R8G8B8A8_UNORM( struct aos_compilation *cp, + struct x86_reg dst_ptr, + struct x86_reg dataXMM ) +{ + sse_mulps(cp->func, dataXMM, aos_get_internal(cp, IMM_255)); + sse2_cvtps2dq(cp->func, dataXMM, dataXMM); + sse2_packssdw(cp->func, dataXMM, dataXMM); + sse2_packuswb(cp->func, dataXMM, dataXMM); + sse_movss(cp->func, dst_ptr, dataXMM); +} + + + + + +static boolean emit_output( struct aos_compilation *cp, + struct x86_reg ptr, + struct x86_reg dataXMM, + unsigned format ) +{ + switch (format) { + case EMIT_1F: + case EMIT_1F_PSIZE: + emit_store_R32(cp, ptr, dataXMM); + break; + case EMIT_2F: + emit_store_R32G32(cp, ptr, dataXMM); + break; + case EMIT_3F: + emit_store_R32G32B32(cp, ptr, dataXMM); + break; + case EMIT_4F: + emit_store_R32G32B32A32(cp, ptr, dataXMM); + break; + case EMIT_4UB: + if (1) { + emit_swizzle(cp, dataXMM, dataXMM, SHUF(Z,Y,X,W)); + emit_store_R8G8B8A8_UNORM(cp, ptr, dataXMM); + } + else { + emit_store_R8G8B8A8_UNORM(cp, ptr, dataXMM); + } + break; + default: + ERROR(cp, "unhandled output format"); + return FALSE; + } + + return TRUE; +} + + + +boolean aos_emit_outputs( struct aos_compilation *cp ) +{ + unsigned i; + + for (i = 0; i < cp->vaos->base.key.nr_outputs; i++) { + unsigned format = cp->vaos->base.key.element[i].out.format; + unsigned offset = cp->vaos->base.key.element[i].out.offset; + unsigned vs_output = cp->vaos->base.key.element[i].out.vs_output; + + struct x86_reg data; + + if (format == EMIT_1F_PSIZE) { + data = aos_get_internal_xmm( cp, IMM_PSIZE ); + } + else { + data = aos_get_shader_reg( cp, + TGSI_FILE_OUTPUT, + vs_output ); + } + + if (data.file != file_XMM) { + struct x86_reg tmp = aos_get_xmm_reg( cp ); + sse_movups(cp->func, tmp, data); + data = tmp; + } + + if (!emit_output( cp, + x86_make_disp( cp->outbuf_ECX, offset ), + data, + format )) + return FALSE; + + aos_release_xmm_reg( cp, data.idx ); + + cp->insn_counter++; + } + + return TRUE; +} + +#endif diff --git a/src/gallium/auxiliary/draw/draw_vs_aos_machine.c b/src/gallium/auxiliary/draw/draw_vs_aos_machine.c new file mode 100644 index 0000000000..b358bd2df4 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_vs_aos_machine.c @@ -0,0 +1,324 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +#include "pipe/p_config.h" + + +#include "pipe/p_shader_tokens.h" +#include "util/u_math.h" +#include "util/u_memory.h" +#include "tgsi/tgsi_parse.h" +#include "tgsi/tgsi_util.h" +#include "tgsi/tgsi_exec.h" +#include "draw_vs.h" +#include "draw_vs_aos.h" +#include "draw_vertex.h" + +#ifdef PIPE_ARCH_X86 + +#include "rtasm/rtasm_x86sse.h" + + +#define X87_CW_EXCEPTION_INV_OP (1<<0) +#define X87_CW_EXCEPTION_DENORM_OP (1<<1) +#define X87_CW_EXCEPTION_ZERO_DIVIDE (1<<2) +#define X87_CW_EXCEPTION_OVERFLOW (1<<3) +#define X87_CW_EXCEPTION_UNDERFLOW (1<<4) +#define X87_CW_EXCEPTION_PRECISION (1<<5) +#define X87_CW_PRECISION_SINGLE (0<<8) +#define X87_CW_PRECISION_RESERVED (1<<8) +#define X87_CW_PRECISION_DOUBLE (2<<8) +#define X87_CW_PRECISION_DOUBLE_EXT (3<<8) +#define X87_CW_PRECISION_MASK (3<<8) +#define X87_CW_ROUND_NEAREST (0<<10) +#define X87_CW_ROUND_DOWN (1<<10) +#define X87_CW_ROUND_UP (2<<10) +#define X87_CW_ROUND_ZERO (3<<10) +#define X87_CW_ROUND_MASK (3<<10) +#define X87_CW_INFINITY (1<<12) + + +void PIPE_CDECL aos_do_lit( struct aos_machine *machine, + float *result, + const float *in, + unsigned count ) +{ + if (in[0] > 0) + { + if (in[1] <= 0.0) + { + result[0] = 1.0F; + result[1] = in[0]; + result[2] = 1.0; + result[3] = 1.0F; + } + else + { + const float epsilon = 1.0F / 256.0F; + float exponent = CLAMP(in[3], -(128.0F - epsilon), (128.0F - epsilon)); + result[0] = 1.0F; + result[1] = in[0]; + result[2] = powf(in[1], exponent); + result[3] = 1.0; + } + } + else + { + result[0] = 1.0F; + result[1] = 0.0; + result[2] = 0.0; + result[3] = 1.0F; + } +} + + +static void PIPE_CDECL do_lit_lut( struct aos_machine *machine, + float *result, + const float *in, + unsigned count ) +{ + if (in[0] > 0) + { + if (in[1] <= 0.0) + { + result[0] = 1.0F; + result[1] = in[0]; + result[2] = 1.0; + result[3] = 1.0F; + return; + } + + if (machine->lit_info[count].shine_tab->exponent != in[3]) { + machine->lit_info[count].func = aos_do_lit; + goto no_luck; + } + + if (in[1] <= 1.0) + { + const float *tab = machine->lit_info[count].shine_tab->values; + float f = in[1] * 256; + int k = (int)f; + float frac = f - (float)k; + + result[0] = 1.0F; + result[1] = in[0]; + result[2] = tab[k] + frac*(tab[k+1]-tab[k]); + result[3] = 1.0; + return; + } + + no_luck: + { + const float epsilon = 1.0F / 256.0F; + float exponent = CLAMP(in[3], -(128.0F - epsilon), (128.0F - epsilon)); + result[0] = 1.0F; + result[1] = in[0]; + result[2] = powf(in[1], exponent); + result[3] = 1.0; + } + } + else + { + result[0] = 1.0F; + result[1] = 0.0; + result[2] = 0.0; + result[3] = 1.0F; + } +} + + +static void do_populate_lut( struct shine_tab *tab, + float unclamped_exponent ) +{ + const float epsilon = 1.0F / 256.0F; + float exponent = CLAMP(unclamped_exponent, -(128.0F - epsilon), (128.0F - epsilon)); + unsigned i; + + tab->exponent = unclamped_exponent; /* for later comparison */ + + tab->values[0] = 0; + if (exponent == 0) { + for (i = 1; i < 258; i++) { + tab->values[i] = 1.0; + } + } + else { + for (i = 1; i < 258; i++) { + tab->values[i] = powf((float)i * epsilon, exponent); + } + } +} + + + + +static void PIPE_CDECL populate_lut( struct aos_machine *machine, + float *result, + const float *in, + unsigned count ) +{ + unsigned i, tab; + + /* Search for an existing table for this value. Note that without + * static analysis we don't really know if in[3] will be constant, + * but it usually is... + */ + for (tab = 0; tab < 4; tab++) { + if (machine->shine_tab[tab].exponent == in[3]) { + goto found; + } + } + + for (tab = 0, i = 1; i < 4; i++) { + if (machine->shine_tab[i].last_used < machine->shine_tab[tab].last_used) + tab = i; + } + + if (machine->shine_tab[tab].last_used == machine->now) { + /* No unused tables (this is not a ffvertex program...). Just + * call pow each time: + */ + machine->lit_info[count].func = aos_do_lit; + machine->lit_info[count].func( machine, result, in, count ); + return; + } + else { + do_populate_lut( &machine->shine_tab[tab], in[3] ); + } + + found: + machine->shine_tab[tab].last_used = machine->now; + machine->lit_info[count].shine_tab = &machine->shine_tab[tab]; + machine->lit_info[count].func = do_lit_lut; + machine->lit_info[count].func( machine, result, in, count ); +} + + +void draw_vs_aos_machine_constants( struct aos_machine *machine, + const float (*constants)[4] ) +{ + machine->constants = constants; + + { + unsigned i; + for (i = 0; i < MAX_LIT_INFO; i++) { + machine->lit_info[i].func = populate_lut; + machine->now++; + } + } +} + + +void draw_vs_aos_machine_viewport( struct aos_machine *machine, + const struct pipe_viewport_state *viewport ) +{ + memcpy(machine->scale, viewport->scale, 4 * sizeof(float)); + memcpy(machine->translate, viewport->translate, 4 * sizeof(float)); +} + + + +void draw_vs_aos_machine_destroy( struct aos_machine *machine ) +{ + align_free(machine); +} + +struct aos_machine *draw_vs_aos_machine( void ) +{ + struct aos_machine *machine; + unsigned i; + float inv = 1.0f/255.0f; + float f255 = 255.0f; + + machine = align_malloc(sizeof(struct aos_machine), 16); + if (!machine) + return NULL; + + memset(machine, 0, sizeof(*machine)); + + ASSIGN_4V(machine->internal[IMM_SWZ], 1.0f, -1.0f, 0.0f, 1.0f); + *(unsigned *)&machine->internal[IMM_SWZ][3] = 0xffffffff; + + ASSIGN_4V(machine->internal[IMM_ONES], 1.0f, 1.0f, 1.0f, 1.0f); + ASSIGN_4V(machine->internal[IMM_NEGS], -1.0f, -1.0f, -1.0f, -1.0f); + ASSIGN_4V(machine->internal[IMM_IDENTITY], 0.0f, 0.0f, 0.0f, 1.0f); + ASSIGN_4V(machine->internal[IMM_INV_255], inv, inv, inv, inv); + ASSIGN_4V(machine->internal[IMM_255], f255, f255, f255, f255); + ASSIGN_4V(machine->internal[IMM_RSQ], -.5f, 1.5f, 0.0f, 0.0f); + + + machine->fpu_rnd_nearest = (X87_CW_EXCEPTION_INV_OP | + X87_CW_EXCEPTION_DENORM_OP | + X87_CW_EXCEPTION_ZERO_DIVIDE | + X87_CW_EXCEPTION_OVERFLOW | + X87_CW_EXCEPTION_UNDERFLOW | + X87_CW_EXCEPTION_PRECISION | + (1<<6) | + X87_CW_ROUND_NEAREST | + X87_CW_PRECISION_DOUBLE_EXT); + + assert(machine->fpu_rnd_nearest == 0x37f); + + machine->fpu_rnd_neg_inf = (X87_CW_EXCEPTION_INV_OP | + X87_CW_EXCEPTION_DENORM_OP | + X87_CW_EXCEPTION_ZERO_DIVIDE | + X87_CW_EXCEPTION_OVERFLOW | + X87_CW_EXCEPTION_UNDERFLOW | + X87_CW_EXCEPTION_PRECISION | + (1<<6) | + X87_CW_ROUND_DOWN | + X87_CW_PRECISION_DOUBLE_EXT); + + for (i = 0; i < MAX_SHINE_TAB; i++) + do_populate_lut( &machine->shine_tab[i], 1.0f ); + + return machine; +} + +#else + +void draw_vs_aos_machine_viewport( struct aos_machine *machine, + const struct pipe_viewport_state *viewport ) +{ +} + +void draw_vs_aos_machine_constants( struct aos_machine *machine, + const float (*constants)[4] ) +{ +} + +void draw_vs_aos_machine_destroy( struct aos_machine *machine ) +{ +} + +struct aos_machine *draw_vs_aos_machine( void ) +{ + return NULL; +} +#endif + diff --git a/src/gallium/auxiliary/draw/draw_vs_exec.c b/src/gallium/auxiliary/draw/draw_vs_exec.c new file mode 100644 index 0000000000..44563803f9 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_vs_exec.c @@ -0,0 +1,191 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + * Brian Paul + */ + +#include "util/u_math.h" +#include "util/u_memory.h" +#include "pipe/p_shader_tokens.h" + +#include "draw_private.h" +#include "draw_context.h" +#include "draw_vs.h" + +#include "tgsi/tgsi_parse.h" +#include "tgsi/tgsi_scan.h" + + +struct exec_vertex_shader { + struct draw_vertex_shader base; + struct tgsi_exec_machine *machine; +}; + +static struct exec_vertex_shader *exec_vertex_shader( struct draw_vertex_shader *vs ) +{ + return (struct exec_vertex_shader *)vs; +} + + +/* Not required for run_linear. + */ +static void +vs_exec_prepare( struct draw_vertex_shader *shader, + struct draw_context *draw ) +{ + struct exec_vertex_shader *evs = exec_vertex_shader(shader); + + /* specify the vertex program to interpret/execute */ + tgsi_exec_machine_bind_shader(evs->machine, + shader->state.tokens, + PIPE_MAX_SAMPLERS, + NULL /*samplers*/ ); + +} + + + + +/* Simplified vertex shader interface for the pt paths. Given the + * complexity of code-generating all the above operations together, + * it's time to try doing all the other stuff separately. + */ +static void +vs_exec_run_linear( struct draw_vertex_shader *shader, + const float (*input)[4], + float (*output)[4], + const float (*constants)[4], + unsigned count, + unsigned input_stride, + unsigned output_stride ) +{ + struct exec_vertex_shader *evs = exec_vertex_shader(shader); + struct tgsi_exec_machine *machine = evs->machine; + unsigned int i, j; + unsigned slot; + + machine->Consts = constants; + + for (i = 0; i < count; i += MAX_TGSI_VERTICES) { + unsigned int max_vertices = MIN2(MAX_TGSI_VERTICES, count - i); + + /* Swizzle inputs. + */ + for (j = 0; j < max_vertices; j++) { +#if 0 + debug_printf("%d) Input vert:\n", i + j); + for (slot = 0; slot < shader->info.num_inputs; slot++) { + debug_printf("\t%d: %f %f %f %f\n", slot, + input[slot][0], + input[slot][1], + input[slot][2], + input[slot][3]); + } +#endif + + for (slot = 0; slot < shader->info.num_inputs; slot++) { + machine->Inputs[slot].xyzw[0].f[j] = input[slot][0]; + machine->Inputs[slot].xyzw[1].f[j] = input[slot][1]; + machine->Inputs[slot].xyzw[2].f[j] = input[slot][2]; + machine->Inputs[slot].xyzw[3].f[j] = input[slot][3]; + } + + input = (const float (*)[4])((const char *)input + input_stride); + } + + /* run interpreter */ + tgsi_exec_machine_run( machine ); + + /* Unswizzle all output results. + */ + for (j = 0; j < max_vertices; j++) { + for (slot = 0; slot < shader->info.num_outputs; slot++) { + output[slot][0] = machine->Outputs[slot].xyzw[0].f[j]; + output[slot][1] = machine->Outputs[slot].xyzw[1].f[j]; + output[slot][2] = machine->Outputs[slot].xyzw[2].f[j]; + output[slot][3] = machine->Outputs[slot].xyzw[3].f[j]; + + } + +#if 0 + debug_printf("%d) Post xform vert:\n", i + j); + for (slot = 0; slot < shader->info.num_outputs; slot++) { + debug_printf("\t%d: %f %f %f %f\n", slot, + output[slot][0], + output[slot][1], + output[slot][2], + output[slot][3]); + } +#endif + + output = (float (*)[4])((char *)output + output_stride); + } + + } +} + + + + +static void +vs_exec_delete( struct draw_vertex_shader *dvs ) +{ + FREE((void*) dvs->state.tokens); + FREE( dvs ); +} + + +struct draw_vertex_shader * +draw_create_vs_exec(struct draw_context *draw, + const struct pipe_shader_state *state) +{ + struct exec_vertex_shader *vs = CALLOC_STRUCT( exec_vertex_shader ); + + if (vs == NULL) + return NULL; + + /* we make a private copy of the tokens */ + vs->base.state.tokens = tgsi_dup_tokens(state->tokens); + if (!vs->base.state.tokens) { + FREE(vs); + return NULL; + } + + tgsi_scan_shader(state->tokens, &vs->base.info); + + vs->base.draw = draw; + vs->base.prepare = vs_exec_prepare; + vs->base.run_linear = vs_exec_run_linear; + vs->base.delete = vs_exec_delete; + vs->base.create_varient = draw_vs_varient_generic; + vs->machine = &draw->vs.machine; + + return &vs->base; +} diff --git a/src/gallium/auxiliary/draw/draw_vs_llvm.c b/src/gallium/auxiliary/draw/draw_vs_llvm.c new file mode 100644 index 0000000000..2ce30b9a02 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_vs_llvm.c @@ -0,0 +1,160 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Zack Rusin + * Keith Whitwell <keith@tungstengraphics.com> + * Brian Paul + */ + +#include "pipe/p_shader_tokens.h" +#include "draw_private.h" +#include "draw_context.h" +#include "draw_vs.h" + +#include "tgsi/tgsi_parse.h" + +#ifdef MESA_LLVM + +#include "gallivm/gallivm.h" + +struct draw_llvm_vertex_shader { + struct draw_vertex_shader base; + struct gallivm_prog *llvm_prog; + struct tgsi_exec_machine *machine; +}; + + +static void +vs_llvm_prepare( struct draw_vertex_shader *base, + struct draw_context *draw ) +{ +} + + + + +static void +vs_llvm_run_linear( struct draw_vertex_shader *base, + const float (*input)[4], + float (*output)[4], + const float (*constants)[4], + unsigned count, + unsigned input_stride, + unsigned output_stride ) +{ + struct draw_llvm_vertex_shader *shader = + (struct draw_llvm_vertex_shader *)base; + + gallivm_cpu_vs_exec(shader->llvm_prog, shader->machine, + input, base->info.num_inputs, output, base->info.num_outputs, + constants, count, input_stride, output_stride); +} + + + +static void +vs_llvm_delete( struct draw_vertex_shader *base ) +{ + struct draw_llvm_vertex_shader *shader = + (struct draw_llvm_vertex_shader *)base; + + /* Do something to free compiled shader: + */ + + FREE( (void*) shader->base.state.tokens ); + FREE( shader ); +} + + + + +struct draw_vertex_shader * +draw_create_vs_llvm(struct draw_context *draw, + const struct pipe_shader_state *templ) +{ + struct draw_llvm_vertex_shader *vs; + + vs = CALLOC_STRUCT( draw_llvm_vertex_shader ); + if (vs == NULL) + return NULL; + + /* we make a private copy of the tokens */ + vs->base.state.tokens = tgsi_dup_tokens(templ->tokens); + if (!vs->base.state.tokens) { + FREE(vs); + return NULL; + } + + tgsi_scan_shader(vs->base.state.tokens, &vs->base.info); + + vs->base.draw = draw; + vs->base.prepare = vs_llvm_prepare; + vs->base.create_varient = draw_vs_varient_generic; + vs->base.run_linear = vs_llvm_run_linear; + vs->base.delete = vs_llvm_delete; + vs->machine = &draw->vs.machine; + + { + struct gallivm_ir *ir = gallivm_ir_new(GALLIVM_VS); + gallivm_ir_set_layout(ir, GALLIVM_SOA); + gallivm_ir_set_components(ir, 4); + gallivm_ir_fill_from_tgsi(ir, vs->base.state.tokens); + vs->llvm_prog = gallivm_ir_compile(ir); + gallivm_ir_delete(ir); + } + + draw->vs.engine = gallivm_global_cpu_engine(); + + /* XXX: Why are there two versions of this? Shouldn't creating the + * engine be a separate operation to compiling a shader? + */ + if (!draw->vs.engine) { + draw->vs.engine = gallivm_cpu_engine_create(vs->llvm_prog); + } + else { + gallivm_cpu_jit_compile(draw->vs.engine, vs->llvm_prog); + } + + return &vs->base; +} + + + + + +#else + +struct draw_vertex_shader * +draw_create_vs_llvm(struct draw_context *draw, + const struct pipe_shader_state *shader) +{ + return NULL; +} + +#endif diff --git a/src/gallium/auxiliary/draw/draw_vs_sse.c b/src/gallium/auxiliary/draw/draw_vs_sse.c new file mode 100644 index 0000000000..0efabd9de8 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_vs_sse.c @@ -0,0 +1,212 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + * Brian Paul + */ + +#include "util/u_math.h" +#include "util/u_memory.h" +#include "pipe/p_config.h" + +#include "draw_vs.h" + +#if defined(PIPE_ARCH_X86) + +#include "pipe/p_shader_tokens.h" + +#include "draw_private.h" +#include "draw_context.h" + +#include "rtasm/rtasm_cpu.h" +#include "rtasm/rtasm_x86sse.h" +#include "tgsi/tgsi_sse2.h" +#include "tgsi/tgsi_parse.h" + +#define SSE_MAX_VERTICES 4 + +typedef void (PIPE_CDECL *codegen_function) ( + const struct tgsi_exec_vector *input, /* 1 */ + struct tgsi_exec_vector *output, /* 2 */ + float (*constant)[4], /* 3 */ + struct tgsi_exec_vector *temporary, /* 4 */ + float (*immediates)[4], /* 5 */ + const float (*aos_input)[4], /* 6 */ + uint num_inputs, /* 7 */ + uint input_stride, /* 8 */ + float (*aos_output)[4], /* 9 */ + uint num_outputs, /* 10 */ + uint output_stride ); /* 11 */ + +struct draw_sse_vertex_shader { + struct draw_vertex_shader base; + struct x86_function sse2_program; + + codegen_function func; + + struct tgsi_exec_machine *machine; +}; + + +static void +vs_sse_prepare( struct draw_vertex_shader *base, + struct draw_context *draw ) +{ +} + + + +/* Simplified vertex shader interface for the pt paths. Given the + * complexity of code-generating all the above operations together, + * it's time to try doing all the other stuff separately. + */ +static void +vs_sse_run_linear( struct draw_vertex_shader *base, + const float (*input)[4], + float (*output)[4], + const float (*constants)[4], + unsigned count, + unsigned input_stride, + unsigned output_stride ) +{ + struct draw_sse_vertex_shader *shader = (struct draw_sse_vertex_shader *)base; + struct tgsi_exec_machine *machine = shader->machine; + unsigned int i; + + for (i = 0; i < count; i += MAX_TGSI_VERTICES) { + unsigned int max_vertices = MIN2(MAX_TGSI_VERTICES, count - i); + + /* run compiled shader + */ + shader->func(machine->Inputs, + machine->Outputs, + (float (*)[4])constants, + machine->Temps, + (float (*)[4])shader->base.immediates, + input, + base->info.num_inputs, + input_stride, + output, + base->info.num_outputs, + output_stride ); + + input = (const float (*)[4])((const char *)input + input_stride * max_vertices); + output = (float (*)[4])((char *)output + output_stride * max_vertices); + } +} + + + + +static void +vs_sse_delete( struct draw_vertex_shader *base ) +{ + struct draw_sse_vertex_shader *shader = (struct draw_sse_vertex_shader *)base; + + x86_release_func( &shader->sse2_program ); + + align_free( (void *) shader->base.immediates ); + + FREE( (void*) shader->base.state.tokens ); + FREE( shader ); +} + + +struct draw_vertex_shader * +draw_create_vs_sse(struct draw_context *draw, + const struct pipe_shader_state *templ) +{ + struct draw_sse_vertex_shader *vs; + + if (!rtasm_cpu_has_sse2()) + return NULL; + + vs = CALLOC_STRUCT( draw_sse_vertex_shader ); + if (vs == NULL) + return NULL; + + /* we make a private copy of the tokens */ + vs->base.state.tokens = tgsi_dup_tokens(templ->tokens); + if (!vs->base.state.tokens) + goto fail; + + tgsi_scan_shader(templ->tokens, &vs->base.info); + + vs->base.draw = draw; + if (1) + vs->base.create_varient = draw_vs_varient_aos_sse; + else + vs->base.create_varient = draw_vs_varient_generic; + vs->base.prepare = vs_sse_prepare; + vs->base.run_linear = vs_sse_run_linear; + vs->base.delete = vs_sse_delete; + + vs->base.immediates = align_malloc(TGSI_EXEC_NUM_IMMEDIATES * 4 * + sizeof(float), 16); + + vs->machine = &draw->vs.machine; + + x86_init_func( &vs->sse2_program ); + + if (!tgsi_emit_sse2( (struct tgsi_token *) vs->base.state.tokens, + &vs->sse2_program, + (float (*)[4])vs->base.immediates, + TRUE )) + goto fail; + + vs->func = (codegen_function) x86_get_func( &vs->sse2_program ); + if (!vs->func) { + goto fail; + } + + return &vs->base; + +fail: + debug_error("tgsi_emit_sse2() failed, falling back to interpreter\n"); + + x86_release_func( &vs->sse2_program ); + + FREE(vs); + return NULL; +} + + + +#else + +struct draw_vertex_shader * +draw_create_vs_sse( struct draw_context *draw, + const struct pipe_shader_state *templ ) +{ + return (void *) 0; +} + + +#endif + diff --git a/src/gallium/auxiliary/draw/draw_vs_varient.c b/src/gallium/auxiliary/draw/draw_vs_varient.c new file mode 100644 index 0000000000..4daf05dae7 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_vs_varient.c @@ -0,0 +1,322 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "util/u_memory.h" +#include "util/u_math.h" +#include "draw/draw_context.h" +#include "draw/draw_private.h" +#include "draw/draw_vbuf.h" +#include "draw/draw_vertex.h" +#include "draw/draw_vs.h" +#include "translate/translate.h" +#include "translate/translate_cache.h" + +/* A first pass at incorporating vertex fetch/emit functionality into + */ +struct draw_vs_varient_generic { + struct draw_vs_varient base; + + struct draw_vertex_shader *shader; + struct draw_context *draw; + + /* Basic plan is to run these two translate functions before/after + * the vertex shader's existing run_linear() routine to simulate + * the inclusion of this functionality into the shader... + * + * Next will look at actually including it. + */ + struct translate *fetch; + struct translate *emit; + + unsigned temp_vertex_stride; +}; + + + + + +static void vsvg_set_input( struct draw_vs_varient *varient, + unsigned buffer, + const void *ptr, + unsigned stride ) +{ + struct draw_vs_varient_generic *vsvg = (struct draw_vs_varient_generic *)varient; + + vsvg->fetch->set_buffer(vsvg->fetch, + buffer, + ptr, + stride); +} + + +/* Mainly for debug at this stage: + */ +static void do_rhw_viewport( struct draw_vs_varient_generic *vsvg, + unsigned count, + void *output_buffer ) +{ + char *ptr = (char *)output_buffer; + const float *scale = vsvg->base.vs->draw->viewport.scale; + const float *trans = vsvg->base.vs->draw->viewport.translate; + unsigned stride = vsvg->temp_vertex_stride; + unsigned j; + + ptr += vsvg->base.vs->position_output * 4 * sizeof(float); + + for (j = 0; j < count; j++, ptr += stride) { + float *data = (float *)ptr; + float w = 1.0f / data[3]; + + data[0] = data[0] * w * scale[0] + trans[0]; + data[1] = data[1] * w * scale[1] + trans[1]; + data[2] = data[2] * w * scale[2] + trans[2]; + data[3] = w; + } +} + +static void do_viewport( struct draw_vs_varient_generic *vsvg, + unsigned count, + void *output_buffer ) +{ + char *ptr = (char *)output_buffer; + const float *scale = vsvg->base.vs->draw->viewport.scale; + const float *trans = vsvg->base.vs->draw->viewport.translate; + unsigned stride = vsvg->temp_vertex_stride; + unsigned j; + + ptr += vsvg->base.vs->position_output * 4 * sizeof(float); + + for (j = 0; j < count; j++, ptr += stride) { + float *data = (float *)ptr; + + data[0] = data[0] * scale[0] + trans[0]; + data[1] = data[1] * scale[1] + trans[1]; + data[2] = data[2] * scale[2] + trans[2]; + } +} + + +static void PIPE_CDECL vsvg_run_elts( struct draw_vs_varient *varient, + const unsigned *elts, + unsigned count, + void *output_buffer) +{ + struct draw_vs_varient_generic *vsvg = (struct draw_vs_varient_generic *)varient; + unsigned temp_vertex_stride = vsvg->temp_vertex_stride; + void *temp_buffer = MALLOC( align(count,4) * temp_vertex_stride ); + + if (0) debug_printf("%s %d \n", __FUNCTION__, count); + + /* Want to do this in small batches for cache locality? + */ + + vsvg->fetch->run_elts( vsvg->fetch, + elts, + count, + temp_buffer ); + + vsvg->base.vs->run_linear( vsvg->base.vs, + temp_buffer, + temp_buffer, + (const float (*)[4])vsvg->base.vs->draw->pt.user.constants, + count, + temp_vertex_stride, + temp_vertex_stride); + + + if (vsvg->base.key.clip) { + /* not really handling clipping, just do the rhw so we can + * see the results... + */ + do_rhw_viewport( vsvg, + count, + temp_buffer ); + } + else if (vsvg->base.key.viewport) { + do_viewport( vsvg, + count, + temp_buffer ); + } + + + vsvg->emit->set_buffer( vsvg->emit, + 0, + temp_buffer, + temp_vertex_stride ); + + vsvg->emit->set_buffer( vsvg->emit, + 1, + &vsvg->draw->rasterizer->point_size, + 0); + + vsvg->emit->run( vsvg->emit, + 0, count, + output_buffer ); + + FREE(temp_buffer); +} + + +static void PIPE_CDECL vsvg_run_linear( struct draw_vs_varient *varient, + unsigned start, + unsigned count, + void *output_buffer ) +{ + struct draw_vs_varient_generic *vsvg = (struct draw_vs_varient_generic *)varient; + unsigned temp_vertex_stride = vsvg->temp_vertex_stride; + void *temp_buffer = MALLOC( align(count,4) * temp_vertex_stride ); + + if (0) debug_printf("%s %d %d (sz %d, %d)\n", __FUNCTION__, start, count, + vsvg->base.key.output_stride, + temp_vertex_stride); + + vsvg->fetch->run( vsvg->fetch, + start, + count, + temp_buffer ); + + vsvg->base.vs->run_linear( vsvg->base.vs, + temp_buffer, + temp_buffer, + (const float (*)[4])vsvg->base.vs->draw->pt.user.constants, + count, + temp_vertex_stride, + temp_vertex_stride); + + if (vsvg->base.key.clip) { + /* not really handling clipping, just do the rhw so we can + * see the results... + */ + do_rhw_viewport( vsvg, + count, + temp_buffer ); + } + else if (vsvg->base.key.viewport) { + do_viewport( vsvg, + count, + temp_buffer ); + } + + vsvg->emit->set_buffer( vsvg->emit, + 0, + temp_buffer, + temp_vertex_stride ); + + vsvg->emit->set_buffer( vsvg->emit, + 1, + &vsvg->draw->rasterizer->point_size, + 0); + + vsvg->emit->run( vsvg->emit, + 0, count, + output_buffer ); + + FREE(temp_buffer); +} + + + + + +static void vsvg_destroy( struct draw_vs_varient *varient ) +{ + FREE(varient); +} + + +struct draw_vs_varient *draw_vs_varient_generic( struct draw_vertex_shader *vs, + const struct draw_vs_varient_key *key ) +{ + unsigned i; + struct translate_key fetch, emit; + + struct draw_vs_varient_generic *vsvg = CALLOC_STRUCT( draw_vs_varient_generic ); + if (vsvg == NULL) + return NULL; + + vsvg->base.key = *key; + vsvg->base.vs = vs; + vsvg->base.set_input = vsvg_set_input; + vsvg->base.run_elts = vsvg_run_elts; + vsvg->base.run_linear = vsvg_run_linear; + vsvg->base.destroy = vsvg_destroy; + + vsvg->draw = vs->draw; + + vsvg->temp_vertex_stride = MAX2(key->nr_inputs, + vsvg->base.vs->info.num_outputs) * 4 * sizeof(float); + + /* Build free-standing fetch and emit functions: + */ + fetch.nr_elements = key->nr_inputs; + fetch.output_stride = vsvg->temp_vertex_stride; + for (i = 0; i < key->nr_inputs; i++) { + fetch.element[i].input_format = key->element[i].in.format; + fetch.element[i].input_buffer = key->element[i].in.buffer; + fetch.element[i].input_offset = key->element[i].in.offset; + fetch.element[i].output_format = PIPE_FORMAT_R32G32B32A32_FLOAT; + fetch.element[i].output_offset = i * 4 * sizeof(float); + assert(fetch.element[i].output_offset < fetch.output_stride); + } + + + emit.nr_elements = key->nr_outputs; + emit.output_stride = key->output_stride; + for (i = 0; i < key->nr_outputs; i++) { + if (key->element[i].out.format != EMIT_1F_PSIZE) + { + emit.element[i].input_format = PIPE_FORMAT_R32G32B32A32_FLOAT; + emit.element[i].input_buffer = 0; + emit.element[i].input_offset = key->element[i].out.vs_output * 4 * sizeof(float); + emit.element[i].output_format = draw_translate_vinfo_format(key->element[i].out.format); + emit.element[i].output_offset = key->element[i].out.offset; + assert(emit.element[i].input_offset <= fetch.output_stride); + } + else { + emit.element[i].input_format = PIPE_FORMAT_R32_FLOAT; + emit.element[i].input_buffer = 1; + emit.element[i].input_offset = 0; + emit.element[i].output_format = PIPE_FORMAT_R32_FLOAT; + emit.element[i].output_offset = key->element[i].out.offset; + } + } + + vsvg->fetch = draw_vs_get_fetch( vs->draw, &fetch ); + vsvg->emit = draw_vs_get_emit( vs->draw, &emit ); + + return &vsvg->base; +} + + + + + |