From 0a262998ef2813d19e9fee01d3e5808416e9cb04 Mon Sep 17 00:00:00 2001 From: Brian Date: Mon, 20 Aug 2007 15:11:11 -0600 Subject: Move guts of vertex array drawing into the 'draw' module. --- src/mesa/pipe/draw/draw_arrays.c | 386 ++++++++++++++++++++++++++++++++++++++ src/mesa/pipe/draw/draw_context.c | 28 +++ src/mesa/pipe/draw/draw_context.h | 36 +++- src/mesa/pipe/draw/draw_prim.c | 7 +- src/mesa/pipe/draw/draw_prim.h | 7 - src/mesa/pipe/draw/draw_private.h | 6 +- src/mesa/pipe/draw/draw_vb.c | 9 +- 7 files changed, 455 insertions(+), 24 deletions(-) create mode 100644 src/mesa/pipe/draw/draw_arrays.c (limited to 'src/mesa/pipe/draw') diff --git a/src/mesa/pipe/draw/draw_arrays.c b/src/mesa/pipe/draw/draw_arrays.c new file mode 100644 index 00000000000..59098fe2421 --- /dev/null +++ b/src/mesa/pipe/draw/draw_arrays.c @@ -0,0 +1,386 @@ +/************************************************************************** + * + * 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. + * + **************************************************************************/ + +/* Author: + * Brian Paul + * Keith Whitwell + */ + + +#include "pipe/p_defines.h" +#include "pipe/p_context.h" +#include "pipe/p_winsys.h" +#include "pipe/p_util.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 draw_context *draw, + 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 = draw->viewport.scale; + const float *trans = draw->viewport.translate; + + assert(count <= 4); + +#ifdef DEBUG + memset( &machine, 0, sizeof( machine ) ); +#endif + + /* init machine state */ + tgsi_exec_machine_init(&machine, + draw->vertex_shader.tokens, + PIPE_MAX_SAMPLERS, + NULL /*samplers*/ ); + + /* Consts does not require 16 byte alignment. */ + machine.Consts = draw->vertex_shader.constants->constant; + + machine.Inputs = ALIGN16_ASSIGN(inputs); + machine.Outputs = ALIGN16_ASSIGN(outputs); + + + if (0) + { + unsigned attr; + for (attr = 0; attr < 16; attr++) { + if (draw->vertex_shader.inputs_read & (1 << attr)) { + printf("attr %d: buf_off %d src_off %d pitch %d\n", + attr, + draw->vertex_buffer[attr].buffer_offset, + draw->vertex_element[attr].src_offset, + draw->vertex_buffer[attr].pitch); + } + } + } + + /* load machine inputs */ + for (j = 0; j < count; j++) { + unsigned attr; + for (attr = 0; attr < 16; attr++) { + if (draw->vertex_shader.inputs_read & (1 << attr)) { + const void *src + = (const void *) ((const ubyte *) draw->mapped_vbuffer[attr] + + draw->vertex_buffer[attr].buffer_offset + + draw->vertex_element[attr].src_offset + + elts[j] * draw->vertex_buffer[attr].pitch); + float p[4]; + + fetch_attrib4(src, draw->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(draw->vertex_shader.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 (draw->vertex_shader.outputs_written & (1 << attr)) { + assert(slot < draw->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 ) +{ + 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(draw, elts, n, dests); + } + + draw->vs.queue_nr = 0; +} + + +void draw_set_mapped_vertex_buffer(struct draw_context *draw, + unsigned attr, const void *buffer) +{ + draw->mapped_vbuffer[attr] = buffer; +} + + +/** + * 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) +{ + /* tell drawing pipeline we're beginning drawing */ + draw->pipeline.first->begin( draw->pipeline.first ); + + draw->vs_flush = vs_flush; + + draw_invalidate_vcache( draw ); + + draw_set_prim( draw, prim ); + + /* 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 ); +} + + +/* XXX move this into draw_context.c? */ + +#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_attributes( 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 */ +} diff --git a/src/mesa/pipe/draw/draw_context.c b/src/mesa/pipe/draw/draw_context.c index a808fb77770..cc00576c53b 100644 --- a/src/mesa/pipe/draw/draw_context.c +++ b/src/mesa/pipe/draw/draw_context.c @@ -201,3 +201,31 @@ void draw_set_viewport_state( struct draw_context *draw, * Full pipe will have vertex shader, vertex fetch of its own. */ } + + +void +draw_set_vertex_buffer(struct draw_context *draw, + unsigned attr, + const struct pipe_vertex_buffer *buffer) +{ + assert(attr < PIPE_ATTRIB_MAX); + draw->vertex_buffer[attr] = *buffer; +} + + +void +draw_set_vertex_element(struct draw_context *draw, + unsigned attr, + const struct pipe_vertex_element *element) +{ + assert(attr < PIPE_ATTRIB_MAX); + draw->vertex_element[attr] = *element; +} + + +void +draw_set_vertex_shader(struct draw_context *draw, + const struct pipe_shader_state *shader) +{ + draw->vertex_shader = *shader; +} diff --git a/src/mesa/pipe/draw/draw_context.h b/src/mesa/pipe/draw/draw_context.h index 74fdd46262e..2fce1322c50 100644 --- a/src/mesa/pipe/draw/draw_context.h +++ b/src/mesa/pipe/draw/draw_context.h @@ -93,14 +93,36 @@ void draw_set_vertex_attributes( struct draw_context *draw, const unsigned *attrs, unsigned nr_attrs ); -/* XXX temporary */ -void draw_set_vertex_attributes2( struct draw_context *draw, - const unsigned *attrs, - unsigned nr_attrs ); +unsigned draw_prim_info( unsigned prim, unsigned *first, unsigned *incr ); + +unsigned draw_trim( unsigned count, unsigned first, unsigned incr ); + +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_vertex_buffer(struct draw_context *draw, + unsigned attr, + const struct pipe_vertex_buffer *buffer); + +void +draw_set_vertex_element(struct draw_context *draw, + unsigned attr, + const struct pipe_vertex_element *element); + +void +draw_set_vertex_shader(struct draw_context *draw, + const struct pipe_shader_state *shader); + + +void +draw_arrays(struct draw_context *draw, unsigned prim, + unsigned start, unsigned count); -/* XXX temporary */ -void draw_vb(struct draw_context *draw, - struct vertex_buffer *VB ); void draw_vertices(struct draw_context *draw, unsigned mode, diff --git a/src/mesa/pipe/draw/draw_prim.c b/src/mesa/pipe/draw/draw_prim.c index fb8bc0f36da..fbd0672875f 100644 --- a/src/mesa/pipe/draw/draw_prim.c +++ b/src/mesa/pipe/draw/draw_prim.c @@ -434,8 +434,8 @@ draw_set_prim( struct draw_context *draw, unsigned prim ) * \param elements the element buffer ptr */ void -draw_set_element_buffer( struct draw_context *draw, - unsigned eltSize, void *elements ) +draw_set_mapped_element_buffer( struct draw_context *draw, + unsigned eltSize, void *elements ) { /* choose the get_vertex() function to use */ switch (eltSize) { @@ -456,10 +456,9 @@ draw_set_element_buffer( struct draw_context *draw, } draw->elts = elements; draw->eltSize = eltSize; - - } + unsigned draw_prim_info(unsigned prim, unsigned *first, unsigned *incr) { diff --git a/src/mesa/pipe/draw/draw_prim.h b/src/mesa/pipe/draw/draw_prim.h index 3224989bef4..4c55b029786 100644 --- a/src/mesa/pipe/draw/draw_prim.h +++ b/src/mesa/pipe/draw/draw_prim.h @@ -8,16 +8,9 @@ void draw_invalidate_vcache( struct draw_context *draw ); void draw_set_prim( struct draw_context *draw, unsigned prim ); -void draw_set_element_buffer( struct draw_context *draw, - unsigned eltSize, void *elements ); - void draw_prim( struct draw_context *draw, unsigned start, unsigned count ); void draw_flush( struct draw_context *draw ); -unsigned draw_prim_info( unsigned prim, unsigned *first, unsigned *incr ); - -unsigned draw_trim( unsigned count, unsigned first, unsigned incr ); - #endif /* DRAW_PRIM_H */ diff --git a/src/mesa/pipe/draw/draw_private.h b/src/mesa/pipe/draw/draw_private.h index 798fa5c3a69..5c3efb80e99 100644 --- a/src/mesa/pipe/draw/draw_private.h +++ b/src/mesa/pipe/draw/draw_private.h @@ -158,9 +158,11 @@ struct draw_context /* pipe state that we need: */ struct pipe_setup_state setup; struct pipe_viewport_state viewport; + struct pipe_vertex_buffer vertex_buffer[PIPE_ATTRIB_MAX]; + struct pipe_vertex_element vertex_element[PIPE_ATTRIB_MAX]; + struct pipe_shader_state vertex_shader; - /** need to know the pipe for vertex flushing/transformation: */ - struct pipe_context *pipe; + const void *mapped_vbuffer[PIPE_ATTRIB_MAX]; /* Clip derived state: */ diff --git a/src/mesa/pipe/draw/draw_vb.c b/src/mesa/pipe/draw/draw_vb.c index 18e48c0a687..0eefb0b250e 100644 --- a/src/mesa/pipe/draw/draw_vb.c +++ b/src/mesa/pipe/draw/draw_vb.c @@ -221,9 +221,9 @@ void draw_vb(struct draw_context *draw, vf_emit_vertices( draw->vf, VB->Count, draw->verts ); if (VB->Elts) - draw_set_element_buffer(draw, sizeof(unsigned), VB->Elts); + draw_set_mapped_element_buffer(draw, sizeof(unsigned), VB->Elts); else - draw_set_element_buffer(draw, 0, NULL); + draw_set_mapped_element_buffer(draw, 0, NULL); for (i = 0; i < VB->PrimitiveCount; i++) { const GLenum mode = VB->Primitive[i].mode; @@ -281,7 +281,7 @@ draw_vertices(struct draw_context *draw, /* no element/index buffer */ - draw_set_element_buffer(draw, 0, NULL); + draw_set_mapped_element_buffer(draw, 0, NULL); /*draw_prim_info(mode, &first, &incr);*/ draw_allocate_vertices( draw, numVerts ); @@ -325,7 +325,7 @@ draw_vertices(struct draw_context *draw, draw->in_vb = 0; } - +#if 000 /** * Accumulate another attribute's info. @@ -383,3 +383,4 @@ void draw_set_vertex_attributes( struct draw_context *draw, draw->nr_attrs, 0 ); #endif } +#endif -- cgit v1.2.3