/************************************************************************** * * 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 */ #include "draw/draw_context.h" #include "draw/draw_private.h" #include "draw/draw_pt.h" #include "tgsi/tgsi_dump.h" #include "util/u_math.h" #include "util/u_prim.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->force_passthrough) { 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; } 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; #if HAVE_LLVM draw->pt.middle.general = draw_pt_fetch_pipeline_or_emit_llvm( draw ); #else draw->pt.middle.general = NULL; #endif if (!draw->pt.middle.general) 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; } } /** * Debug- print the first 'count' vertices. */ static void draw_print_arrays(struct draw_context *draw, uint prim, int start, uint count) { uint i; debug_printf("Draw arrays(prim = %u, start = %u, count = %u)\n", prim, start, count); for (i = 0; i < count; i++) { uint ii = 0; uint j; if (draw->pt.user.elts) { /* indexed arrays */ switch (draw->pt.user.eltSize) { case 1: { const ubyte *elem = (const ubyte *) draw->pt.user.elts; ii = elem[start + i]; } break; case 2: { const ushort *elem = (const ushort *) draw->pt.user.elts; ii = elem[start + i]; } break; case 4: { const uint *elem = (const uint *) draw->pt.user.elts; ii = elem[start + i]; } break; default: assert(0); } debug_printf("Element[%u + %u] -> Vertex %u:\n", start, i, ii); } else { /* non-indexed arrays */ ii = start + i; debug_printf("Vertex %u:\n", ii); } for (j = 0; j < draw->pt.nr_vertex_elements; j++) { uint buf = draw->pt.vertex_element[j].vertex_buffer_index; ubyte *ptr = (ubyte *) draw->pt.user.vbuffer[buf]; ptr += draw->pt.vertex_buffer[buf].stride * ii; ptr += draw->pt.vertex_element[j].src_offset; debug_printf(" Attr %u: ", j); switch (draw->pt.vertex_element[j].src_format) { case PIPE_FORMAT_R32_FLOAT: { float *v = (float *) ptr; debug_printf("%f @ %p\n", v[0], (void *) v); } break; case PIPE_FORMAT_R32G32_FLOAT: { float *v = (float *) ptr; debug_printf("%f %f @ %p\n", v[0], v[1], (void *) v); } break; case PIPE_FORMAT_R32G32B32_FLOAT: { float *v = (float *) ptr; debug_printf("%f %f %f @ %p\n", v[0], v[1], v[2], (void *) v); } break; case PIPE_FORMAT_R32G32B32A32_FLOAT: { float *v = (float *) ptr; debug_printf("%f %f %f %f @ %p\n", v[0], v[1], v[2], v[3], (void *) v); } break; default: debug_printf("other format (fix me)\n"); ; } } } } /** * 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) { draw_arrays_instanced(draw, prim, start, count, 0, 1); } void draw_arrays_instanced(struct draw_context *draw, unsigned mode, unsigned start, unsigned count, unsigned startInstance, unsigned instanceCount) { unsigned reduced_prim = u_reduced_prim(mode); unsigned instance; if (reduced_prim != draw->reduced_prim) { draw_do_flush(draw, DRAW_FLUSH_STATE_CHANGE); draw->reduced_prim = reduced_prim; } if (0) draw_print_arrays(draw, mode, start, MIN2(count, 20)); #if 0 { int i; debug_printf("draw_arrays(mode=%u start=%u count=%u):\n", mode, start, count); tgsi_dump(draw->vs.vertex_shader->state.tokens, 0); debug_printf("Elements:\n"); for (i = 0; i < draw->pt.nr_vertex_elements; i++) { debug_printf(" format=%s\n", util_format_name(draw->pt.vertex_element[i].src_format)); } debug_printf("Buffers:\n"); for (i = 0; i < draw->pt.nr_vertex_buffers; i++) { debug_printf(" stride=%u offset=%u ptr=%p\n", draw->pt.vertex_buffer[i].stride, draw->pt.vertex_buffer[i].buffer_offset, draw->pt.user.vbuffer[i]); } } #endif for (instance = 0; instance < instanceCount; instance++) { draw->instance_id = instance + startInstance; draw_pt_arrays(draw, mode, start, count); } }