diff options
Diffstat (limited to 'src/mesa/pipe/softpipe/sp_draw_arrays.c')
-rw-r--r-- | src/mesa/pipe/softpipe/sp_draw_arrays.c | 349 |
1 files changed, 12 insertions, 337 deletions
diff --git a/src/mesa/pipe/softpipe/sp_draw_arrays.c b/src/mesa/pipe/softpipe/sp_draw_arrays.c index 6213286f47..2df07eb7d6 100644 --- a/src/mesa/pipe/softpipe/sp_draw_arrays.c +++ b/src/mesa/pipe/softpipe/sp_draw_arrays.c @@ -31,284 +31,15 @@ */ -/** TEMP */ -#include "main/context.h" -#include "main/macros.h" - #include "pipe/p_defines.h" #include "pipe/p_context.h" #include "pipe/p_winsys.h" - +#include "pipe/p_util.h" #include "sp_context.h" #include "sp_state.h" -#include "pipe/draw/draw_private.h" #include "pipe/draw/draw_context.h" -#include "pipe/draw/draw_prim.h" - -#include "pipe/tgsi/core/tgsi_exec.h" -#include "pipe/tgsi/core/tgsi_build.h" -#include "pipe/tgsi/core/tgsi_util.h" - - -#if defined __GNUC__ -#define ALIGN16_DECL(TYPE, NAME, SIZE) TYPE NAME[SIZE] __attribute__(( aligned( 16 ) )) -#define ALIGN16_ASSIGN(P) P -#else -#define ALIGN16_DECL(TYPE, NAME, SIZE) TYPE NAME[SIZE + 1] -#define ALIGN16_ASSIGN(P) align16(P) -#endif - - - -static INLINE unsigned -compute_clipmask(float cx, float cy, float cz, float cw) -{ - unsigned mask; -#if defined(macintosh) || defined(__powerpc__) - /* on powerpc cliptest is 17% faster in this way. */ - mask = (((cw < cx) << CLIP_RIGHT_SHIFT)); - mask |= (((cw < -cx) << CLIP_LEFT_SHIFT)); - mask |= (((cw < cy) << CLIP_TOP_SHIFT)); - mask |= (((cw < -cy) << CLIP_BOTTOM_SHIFT)); - mask |= (((cw < cz) << CLIP_FAR_SHIFT)); - mask |= (((cw < -cz) << CLIP_NEAR_SHIFT)); -#else /* !defined(macintosh)) */ - mask = 0x0; - if (-cx + cw < 0) mask |= CLIP_RIGHT_BIT; - if ( cx + cw < 0) mask |= CLIP_LEFT_BIT; - if (-cy + cw < 0) mask |= CLIP_TOP_BIT; - if ( cy + cw < 0) mask |= CLIP_BOTTOM_BIT; - if (-cz + cw < 0) mask |= CLIP_FAR_BIT; - if ( cz + cw < 0) mask |= CLIP_NEAR_BIT; -#endif /* defined(macintosh) */ - return mask; -} - - -/** - * Fetch a float[4] vertex attribute from memory, doing format/type - * conversion as needed. - * XXX this might be a temporary thing. - */ -static void -fetch_attrib4(const void *ptr, unsigned format, float attrib[4]) -{ - /* defaults */ - attrib[1] = 0.0; - attrib[2] = 0.0; - attrib[3] = 1.0; - switch (format) { - case PIPE_FORMAT_R32G32B32A32_FLOAT: - attrib[3] = ((float *) ptr)[3]; - /* fall-through */ - case PIPE_FORMAT_R32G32B32_FLOAT: - attrib[2] = ((float *) ptr)[2]; - /* fall-through */ - case PIPE_FORMAT_R32G32_FLOAT: - attrib[1] = ((float *) ptr)[1]; - /* fall-through */ - case PIPE_FORMAT_R32_FLOAT: - attrib[0] = ((float *) ptr)[0]; - break; - default: - assert(0); - } -} - - -/** - * Transform vertices with the current vertex program/shader - * Up to four vertices can be shaded at a time. - * \param vbuffer the input vertex data - * \param elts indexes of four input vertices - * \param count number of vertices to shade [1..4] - * \param vOut array of pointers to four output vertices - */ -static void -run_vertex_program(struct softpipe_context *sp, - unsigned elts[4], unsigned count, - struct vertex_header *vOut[]) -{ - struct tgsi_exec_machine machine; - unsigned int j; - - ALIGN16_DECL(struct tgsi_exec_vector, inputs, PIPE_ATTRIB_MAX); - ALIGN16_DECL(struct tgsi_exec_vector, outputs, PIPE_ATTRIB_MAX); - const float *scale = sp->viewport.scale; - const float *trans = sp->viewport.translate; - - assert(count <= 4); - -#ifdef DEBUG - memset( &machine, 0, sizeof( machine ) ); -#endif - - /* init machine state */ - tgsi_exec_machine_init( - &machine, - sp->vs.tokens, - PIPE_MAX_SAMPLERS, - NULL /*samplers*/ ); - - /* Consts does not require 16 byte alignment. */ - machine.Consts = sp->vs.constants->constant; - - machine.Inputs = ALIGN16_ASSIGN(inputs); - machine.Outputs = ALIGN16_ASSIGN(outputs); - - - if (0) - { - unsigned attr; - for (attr = 0; attr < 16; attr++) { - if (sp->vs.inputs_read & (1 << attr)) { - printf("attr %d: buf_off %d src_off %d pitch %d\n", - attr, - sp->vertex_buffer[attr].buffer_offset, - sp->vertex_element[attr].src_offset, - sp->vertex_buffer[attr].pitch); - } - } - } - - /* load machine inputs */ - for (j = 0; j < count; j++) { - unsigned attr; - for (attr = 0; attr < 16; attr++) { - if (sp->vs.inputs_read & (1 << attr)) { - const void *src - = (const void *) ((const ubyte *) sp->mapped_vbuffer[attr] - + sp->vertex_buffer[attr].buffer_offset - + sp->vertex_element[attr].src_offset - + elts[j] * sp->vertex_buffer[attr].pitch); - float p[4]; - - fetch_attrib4(src, sp->vertex_element[attr].src_format, p); - - machine.Inputs[attr].xyzw[0].f[j] = p[0]; /*X*/ - machine.Inputs[attr].xyzw[1].f[j] = p[1]; /*Y*/ - machine.Inputs[attr].xyzw[2].f[j] = p[2]; /*Z*/ - machine.Inputs[attr].xyzw[3].f[j] = p[3]; /*W*/ -#if 0 - if (attr == 0) { - printf("Input vertex %d: %f %f %f\n", - j, p[0], p[1], p[2]); - } -#endif - } - } - } - -#if 0 - printf("Consts:\n"); - for (i = 0; i < 4; i++) { - printf(" %d: %f %f %f %f\n", i, - machine.Consts[i][0], - machine.Consts[i][1], - machine.Consts[i][2], - machine.Consts[i][3]); - } -#endif - - /* run shader */ - tgsi_exec_machine_run( &machine ); - -#if 0 - printf("VS result: %f %f %f %f\n", - outputs[0].xyzw[0].f[0], - outputs[0].xyzw[1].f[0], - outputs[0].xyzw[2].f[0], - outputs[0].xyzw[3].f[0]); -#endif - - /* store machine results */ - assert(sp->vs.outputs_written & (1 << VERT_RESULT_HPOS)); - for (j = 0; j < count; j++) { - unsigned attr, slot; - float x, y, z, w; - - /* Handle attr[0] (position) specially: */ - x = vOut[j]->clip[0] = outputs[0].xyzw[0].f[j]; - y = vOut[j]->clip[1] = outputs[0].xyzw[1].f[j]; - z = vOut[j]->clip[2] = outputs[0].xyzw[2].f[j]; - w = vOut[j]->clip[3] = outputs[0].xyzw[3].f[j]; - - vOut[j]->clipmask = compute_clipmask(x, y, z, w); - vOut[j]->edgeflag = 1; - - /* divide by w */ - w = 1.0 / w; - x *= w; - y *= w; - z *= w; - - /* Viewport mapping */ - vOut[j]->data[0][0] = x * scale[0] + trans[0]; - vOut[j]->data[0][1] = y * scale[1] + trans[1]; - vOut[j]->data[0][2] = z * scale[2] + trans[2]; - vOut[j]->data[0][3] = w; -#if 0 - printf("wincoord: %f %f %f\n", - vOut[j]->data[0][0], - vOut[j]->data[0][1], - vOut[j]->data[0][2]); -#endif - - /* remaining attributes: */ - /* pack into sequential post-transform attrib slots */ - slot = 1; - for (attr = 1; attr < VERT_RESULT_MAX; attr++) { - if (sp->vs.outputs_written & (1 << attr)) { - assert(slot < sp->nr_attrs); - vOut[j]->data[slot][0] = outputs[attr].xyzw[0].f[j]; - vOut[j]->data[slot][1] = outputs[attr].xyzw[1].f[j]; - vOut[j]->data[slot][2] = outputs[attr].xyzw[2].f[j]; - vOut[j]->data[slot][3] = outputs[attr].xyzw[3].f[j]; - slot++; - } - } - } - -#if 0 - memcpy( - quad->outputs.color, - &machine.Outputs[1].xyzw[0].f[0], - sizeof( quad->outputs.color ) ); -#endif -} - - -/** - * Called by the draw module when the vertx cache needs to be flushed. - * This involves running the vertex shader. - */ -static void vs_flush( struct draw_context *draw ) -{ - struct softpipe_context *sp = (struct softpipe_context *) draw->pipe; - unsigned i, j; - - /* run vertex shader on vertex cache entries, four per invokation */ - for (i = 0; i < draw->vs.queue_nr; i += 4) { - struct vertex_header *dests[4]; - unsigned elts[4]; - int n; - - for (j = 0; j < 4; j++) { - elts[j] = draw->vs.queue[i + j].elt; - dests[j] = draw->vs.queue[i + j].dest; - } - - n = MIN2(4, draw->vs.queue_nr - i); - assert(n > 0); - assert(n <= 4); - - run_vertex_program(sp, elts, n, dests); - } - - draw->vs.queue_nr = 0; -} @@ -322,6 +53,10 @@ softpipe_draw_arrays(struct pipe_context *pipe, unsigned mode, /** + * Draw vertex arrays, with optional indexing. + * Basically, map the vertex buffers (and drawing surfaces), then hand off + * the drawing to the 'draw' module. + * * XXX should the element buffer be specified/bound with a separate function? */ void @@ -330,7 +65,6 @@ softpipe_draw_elements(struct pipe_context *pipe, unsigned indexSize, unsigned mode, unsigned start, unsigned count) { - struct softpipe_context *sp = softpipe_context(pipe); struct draw_context *draw = sp->draw; unsigned length, first, incr, i; @@ -353,10 +87,11 @@ softpipe_draw_elements(struct pipe_context *pipe, */ for (i = 0; i < PIPE_ATTRIB_MAX; i++) { if (sp->vertex_buffer[i].buffer) { - sp->mapped_vbuffer[i] + void *buf = pipe->winsys->buffer_map(pipe->winsys, sp->vertex_buffer[i].buffer, PIPE_BUFFER_FLAG_READ); + draw_set_mapped_vertex_buffer(draw, i, buf); } } /* Map index buffer, if present */ @@ -364,30 +99,15 @@ softpipe_draw_elements(struct pipe_context *pipe, mapped_indexes = pipe->winsys->buffer_map(pipe->winsys, indexBuffer, PIPE_BUFFER_FLAG_READ); - draw_set_element_buffer(draw, indexSize, mapped_indexes); + draw_set_mapped_element_buffer(draw, indexSize, mapped_indexes); } else { - draw_set_element_buffer(draw, 0, NULL); /* no index/element buffer */ + draw_set_mapped_element_buffer(draw, 0, NULL); /* no index/element buffer */ } - /* tell drawing pipeline we're beginning drawing */ - draw->pipeline.first->begin( draw->pipeline.first ); - - draw->vs_flush = vs_flush; - draw->pipe = pipe; /* XXX pass pipe to draw_create() */ - - draw_invalidate_vcache( draw ); - draw_set_prim( draw, mode ); + draw_arrays(draw, mode, start, count); - /* drawing done here: */ - draw_prim(draw, start, count); - - /* draw any left-over buffered prims */ - draw_flush(draw); - - /* tell drawing pipeline we're done drawing */ - draw->pipeline.first->end( draw->pipeline.first ); /* * unmap vertex/index buffers @@ -395,58 +115,13 @@ softpipe_draw_elements(struct pipe_context *pipe, for (i = 0; i < PIPE_ATTRIB_MAX; i++) { if (sp->vertex_buffer[i].buffer) { pipe->winsys->buffer_unmap(pipe->winsys, sp->vertex_buffer[i].buffer); + draw_set_mapped_vertex_buffer(draw, i, NULL); } } if (indexBuffer) { pipe->winsys->buffer_unmap(pipe->winsys, indexBuffer); + draw_set_mapped_element_buffer(draw, 0, NULL); } softpipe_unmap_surfaces(sp); } - - - -#define EMIT_ATTR( VF_ATTR, STYLE, SIZE ) \ -do { \ - if (draw->nr_attrs >= 2) \ - draw->vf_attr_to_slot[VF_ATTR] = draw->nr_attrs - 2; \ - draw->attrs[draw->nr_attrs].attrib = VF_ATTR; \ - draw->attrs[draw->nr_attrs].format = STYLE; \ - draw->nr_attrs++; \ - draw->vertex_size += SIZE; \ -} while (0) - - -/** - * XXX very similar to same func in draw_vb.c (which will go away) - */ -void -draw_set_vertex_attributes2( struct draw_context *draw, - const unsigned *slot_to_vf_attr, - unsigned nr_attrs ) -{ - unsigned i; - - memset(draw->vf_attr_to_slot, 0, sizeof(draw->vf_attr_to_slot)); - draw->nr_attrs = 0; - draw->vertex_size = 0; - - /* - * First three attribs are always the same: header, clip pos, winpos - */ - EMIT_ATTR(VF_ATTRIB_VERTEX_HEADER, EMIT_1F, 1); - EMIT_ATTR(VF_ATTRIB_CLIP_POS, EMIT_4F, 4); - - assert(slot_to_vf_attr[0] == VF_ATTRIB_POS); - EMIT_ATTR(slot_to_vf_attr[0], EMIT_4F_VIEWPORT, 4); - - /* - * Remaining attribs (color, texcoords, etc) - */ - for (i = 1; i < nr_attrs; i++) - EMIT_ATTR(slot_to_vf_attr[i], EMIT_4F, 4); - - draw->vertex_size *= 4; /* floats to bytes */ -} - - |