aboutsummaryrefslogtreecommitdiff
path: root/mesalib/src/mesa/state_tracker/st_program.c
diff options
context:
space:
mode:
authormarha <marha@users.sourceforge.net>2011-02-09 07:47:31 +0000
committermarha <marha@users.sourceforge.net>2011-02-09 07:47:31 +0000
commit51a59b7f7f9b134791d3b09673063e4c45ea9eee (patch)
tree52bb43362452042efcdebd64a85d7aa75319b64a /mesalib/src/mesa/state_tracker/st_program.c
parent53bf2508fe3d5bd7889ccf4817fcd2bcc531d6ae (diff)
downloadvcxsrv-51a59b7f7f9b134791d3b09673063e4c45ea9eee.tar.gz
vcxsrv-51a59b7f7f9b134791d3b09673063e4c45ea9eee.tar.bz2
vcxsrv-51a59b7f7f9b134791d3b09673063e4c45ea9eee.zip
libX11 mesa git update 9 Feb 2011
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_program.c')
-rw-r--r--mesalib/src/mesa/state_tracker/st_program.c2319
1 files changed, 1165 insertions, 1154 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_program.c b/mesalib/src/mesa/state_tracker/st_program.c
index f70e5005f..fc1dfb3ef 100644
--- a/mesalib/src/mesa/state_tracker/st_program.c
+++ b/mesalib/src/mesa/state_tracker/st_program.c
@@ -1,1154 +1,1165 @@
-/**************************************************************************
- *
- * 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 "main/imports.h"
-#include "main/hash.h"
-#include "main/mfeatures.h"
-#include "main/mtypes.h"
-#include "program/prog_parameter.h"
-#include "program/prog_print.h"
-#include "program/programopt.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "pipe/p_shader_tokens.h"
-#include "draw/draw_context.h"
-#include "tgsi/tgsi_dump.h"
-#include "tgsi/tgsi_ureg.h"
-
-#include "st_debug.h"
-#include "st_cb_bitmap.h"
-#include "st_cb_drawpixels.h"
-#include "st_context.h"
-#include "st_program.h"
-#include "st_mesa_to_tgsi.h"
-#include "cso_cache/cso_context.h"
-
-
-
-/**
- * Delete a vertex program variant. Note the caller must unlink
- * the variant from the linked list.
- */
-static void
-delete_vp_variant(struct st_context *st, struct st_vp_variant *vpv)
-{
- if (vpv->driver_shader)
- cso_delete_vertex_shader(st->cso_context, vpv->driver_shader);
-
-#if FEATURE_feedback || FEATURE_rastpos
- if (vpv->draw_shader)
- draw_delete_vertex_shader( st->draw, vpv->draw_shader );
-#endif
-
- if (vpv->tgsi.tokens)
- st_free_tokens(vpv->tgsi.tokens);
-
- FREE( vpv );
-}
-
-
-
-/**
- * Clean out any old compilations:
- */
-void
-st_release_vp_variants( struct st_context *st,
- struct st_vertex_program *stvp )
-{
- struct st_vp_variant *vpv;
-
- for (vpv = stvp->variants; vpv; ) {
- struct st_vp_variant *next = vpv->next;
- delete_vp_variant(st, vpv);
- vpv = next;
- }
-
- stvp->variants = NULL;
-}
-
-
-
-/**
- * Delete a fragment program variant. Note the caller must unlink
- * the variant from the linked list.
- */
-static void
-delete_fp_variant(struct st_context *st, struct st_fp_variant *fpv)
-{
- if (fpv->driver_shader)
- cso_delete_fragment_shader(st->cso_context, fpv->driver_shader);
-
- FREE(fpv);
-}
-
-
-/**
- * Free all variants of a fragment program.
- */
-void
-st_release_fp_variants(struct st_context *st, struct st_fragment_program *stfp)
-{
- struct st_fp_variant *fpv;
-
- for (fpv = stfp->variants; fpv; ) {
- struct st_fp_variant *next = fpv->next;
- delete_fp_variant(st, fpv);
- fpv = next;
- }
-
- stfp->variants = NULL;
-}
-
-
-/**
- * Delete a geometry program variant. Note the caller must unlink
- * the variant from the linked list.
- */
-static void
-delete_gp_variant(struct st_context *st, struct st_gp_variant *gpv)
-{
- if (gpv->driver_shader)
- cso_delete_geometry_shader(st->cso_context, gpv->driver_shader);
-
- FREE(gpv);
-}
-
-
-/**
- * Free all variants of a geometry program.
- */
-void
-st_release_gp_variants(struct st_context *st, struct st_geometry_program *stgp)
-{
- struct st_gp_variant *gpv;
-
- for (gpv = stgp->variants; gpv; ) {
- struct st_gp_variant *next = gpv->next;
- delete_gp_variant(st, gpv);
- gpv = next;
- }
-
- stgp->variants = NULL;
-}
-
-
-
-
-/**
- * Translate a Mesa vertex shader into a TGSI shader.
- * \param outputMapping to map vertex program output registers (VERT_RESULT_x)
- * to TGSI output slots
- * \param tokensOut destination for TGSI tokens
- * \return pointer to cached pipe_shader object.
- */
-static void
-st_prepare_vertex_program(struct st_context *st,
- struct st_vertex_program *stvp)
-{
- GLuint attr;
-
- stvp->num_inputs = 0;
- stvp->num_outputs = 0;
-
- if (stvp->Base.IsPositionInvariant)
- _mesa_insert_mvp_code(st->ctx, &stvp->Base);
-
- assert(stvp->Base.Base.NumInstructions > 1);
-
- /*
- * Determine number of inputs, the mappings between VERT_ATTRIB_x
- * and TGSI generic input indexes, plus input attrib semantic info.
- */
- for (attr = 0; attr < VERT_ATTRIB_MAX; attr++) {
- if (stvp->Base.Base.InputsRead & (1 << attr)) {
- stvp->input_to_index[attr] = stvp->num_inputs;
- stvp->index_to_input[stvp->num_inputs] = attr;
- stvp->num_inputs++;
- }
- }
- /* bit of a hack, presetup potentially unused edgeflag input */
- stvp->input_to_index[VERT_ATTRIB_EDGEFLAG] = stvp->num_inputs;
- stvp->index_to_input[stvp->num_inputs] = VERT_ATTRIB_EDGEFLAG;
-
- /* Compute mapping of vertex program outputs to slots.
- */
- for (attr = 0; attr < VERT_RESULT_MAX; attr++) {
- if ((stvp->Base.Base.OutputsWritten & BITFIELD64_BIT(attr)) == 0) {
- stvp->result_to_output[attr] = ~0;
- }
- else {
- unsigned slot = stvp->num_outputs++;
-
- stvp->result_to_output[attr] = slot;
-
- switch (attr) {
- case VERT_RESULT_HPOS:
- stvp->output_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
- stvp->output_semantic_index[slot] = 0;
- break;
- case VERT_RESULT_COL0:
- stvp->output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
- stvp->output_semantic_index[slot] = 0;
- break;
- case VERT_RESULT_COL1:
- stvp->output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
- stvp->output_semantic_index[slot] = 1;
- break;
- case VERT_RESULT_BFC0:
- stvp->output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;
- stvp->output_semantic_index[slot] = 0;
- break;
- case VERT_RESULT_BFC1:
- stvp->output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;
- stvp->output_semantic_index[slot] = 1;
- break;
- case VERT_RESULT_FOGC:
- stvp->output_semantic_name[slot] = TGSI_SEMANTIC_FOG;
- stvp->output_semantic_index[slot] = 0;
- break;
- case VERT_RESULT_PSIZ:
- stvp->output_semantic_name[slot] = TGSI_SEMANTIC_PSIZE;
- stvp->output_semantic_index[slot] = 0;
- break;
- case VERT_RESULT_EDGE:
- assert(0);
- break;
-
- case VERT_RESULT_TEX0:
- case VERT_RESULT_TEX1:
- case VERT_RESULT_TEX2:
- case VERT_RESULT_TEX3:
- case VERT_RESULT_TEX4:
- case VERT_RESULT_TEX5:
- case VERT_RESULT_TEX6:
- case VERT_RESULT_TEX7:
- stvp->output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
- stvp->output_semantic_index[slot] = attr - VERT_RESULT_TEX0;
- break;
-
- case VERT_RESULT_VAR0:
- default:
- assert(attr < VERT_RESULT_MAX);
- stvp->output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
- stvp->output_semantic_index[slot] = (FRAG_ATTRIB_VAR0 -
- FRAG_ATTRIB_TEX0 +
- attr -
- VERT_RESULT_VAR0);
- break;
- }
- }
- }
- /* similar hack to above, presetup potentially unused edgeflag output */
- stvp->result_to_output[VERT_RESULT_EDGE] = stvp->num_outputs;
- stvp->output_semantic_name[stvp->num_outputs] = TGSI_SEMANTIC_EDGEFLAG;
- stvp->output_semantic_index[stvp->num_outputs] = 0;
-}
-
-
-/**
- * Translate a vertex program to create a new variant.
- */
-static struct st_vp_variant *
-st_translate_vertex_program(struct st_context *st,
- struct st_vertex_program *stvp,
- const struct st_vp_variant_key *key)
-{
- struct st_vp_variant *vpv = CALLOC_STRUCT(st_vp_variant);
- struct pipe_context *pipe = st->pipe;
- struct ureg_program *ureg;
- enum pipe_error error;
- unsigned num_outputs;
-
- st_prepare_vertex_program( st, stvp );
-
- _mesa_remove_output_reads(&stvp->Base.Base, PROGRAM_OUTPUT);
- _mesa_remove_output_reads(&stvp->Base.Base, PROGRAM_VARYING);
-
- ureg = ureg_create( TGSI_PROCESSOR_VERTEX );
- if (ureg == NULL) {
- FREE(vpv);
- return NULL;
- }
-
- vpv->key = *key;
-
- vpv->num_inputs = stvp->num_inputs;
- num_outputs = stvp->num_outputs;
- if (key->passthrough_edgeflags) {
- vpv->num_inputs++;
- num_outputs++;
- }
-
- if (ST_DEBUG & DEBUG_MESA) {
- _mesa_print_program(&stvp->Base.Base);
- _mesa_print_program_parameters(st->ctx, &stvp->Base.Base);
- debug_printf("\n");
- }
-
- error = st_translate_mesa_program(st->ctx,
- TGSI_PROCESSOR_VERTEX,
- ureg,
- &stvp->Base.Base,
- /* inputs */
- vpv->num_inputs,
- stvp->input_to_index,
- NULL, /* input semantic name */
- NULL, /* input semantic index */
- NULL,
- /* outputs */
- num_outputs,
- stvp->result_to_output,
- stvp->output_semantic_name,
- stvp->output_semantic_index,
- key->passthrough_edgeflags );
-
- if (error)
- goto fail;
-
- vpv->tgsi.tokens = ureg_get_tokens( ureg, NULL );
- if (!vpv->tgsi.tokens)
- goto fail;
-
- ureg_destroy( ureg );
-
- vpv->driver_shader = pipe->create_vs_state(pipe, &vpv->tgsi);
-
- if (ST_DEBUG & DEBUG_TGSI) {
- tgsi_dump( vpv->tgsi.tokens, 0 );
- debug_printf("\n");
- }
-
- return vpv;
-
-fail:
- debug_printf("%s: failed to translate Mesa program:\n", __FUNCTION__);
- _mesa_print_program(&stvp->Base.Base);
- debug_assert(0);
-
- ureg_destroy( ureg );
- return NULL;
-}
-
-
-/**
- * Find/create a vertex program variant.
- */
-struct st_vp_variant *
-st_get_vp_variant(struct st_context *st,
- struct st_vertex_program *stvp,
- const struct st_vp_variant_key *key)
-{
- struct st_vp_variant *vpv;
-
- /* Search for existing variant */
- for (vpv = stvp->variants; vpv; vpv = vpv->next) {
- if (memcmp(&vpv->key, key, sizeof(*key)) == 0) {
- break;
- }
- }
-
- if (!vpv) {
- /* create now */
- vpv = st_translate_vertex_program(st, stvp, key);
- if (vpv) {
- /* insert into list */
- vpv->next = stvp->variants;
- stvp->variants = vpv;
- }
- }
-
- return vpv;
-}
-
-
-/**
- * Translate a Mesa fragment shader into a TGSI shader using extra info in
- * the key.
- * \return new fragment program variant
- */
-static struct st_fp_variant *
-st_translate_fragment_program(struct st_context *st,
- struct st_fragment_program *stfp,
- const struct st_fp_variant_key *key)
-{
- struct pipe_context *pipe = st->pipe;
- struct st_fp_variant *variant = CALLOC_STRUCT(st_fp_variant);
-
- if (!variant)
- return NULL;
-
- assert(!(key->bitmap && key->drawpixels));
-
-#if FEATURE_drawpix
- if (key->bitmap) {
- /* glBitmap drawing */
- struct gl_fragment_program *fp;
-
- st_make_bitmap_fragment_program(st, &stfp->Base,
- &fp, &variant->bitmap_sampler);
-
- variant->parameters = _mesa_clone_parameter_list(fp->Base.Parameters);
- stfp = st_fragment_program(fp);
- }
- else if (key->drawpixels) {
- /* glDrawPixels drawing */
- struct gl_fragment_program *fp;
-
- if (key->drawpixels_z || key->drawpixels_stencil) {
- fp = st_make_drawpix_z_stencil_program(st, key->drawpixels_z,
- key->drawpixels_stencil);
- }
- else {
- /* RGBA */
- st_make_drawpix_fragment_program(st, &stfp->Base, &fp);
- variant->parameters = _mesa_clone_parameter_list(fp->Base.Parameters);
- }
- stfp = st_fragment_program(fp);
- }
-#endif
-
- if (!stfp->tgsi.tokens) {
- /* need to translate Mesa instructions to TGSI now */
- GLuint outputMapping[FRAG_RESULT_MAX];
- GLuint inputMapping[FRAG_ATTRIB_MAX];
- GLuint interpMode[PIPE_MAX_SHADER_INPUTS]; /* XXX size? */
- GLuint attr;
- enum pipe_error error;
- const GLbitfield inputsRead = stfp->Base.Base.InputsRead;
- struct ureg_program *ureg;
- GLboolean write_all = GL_FALSE;
-
- ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS];
- ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];
- uint fs_num_inputs = 0;
-
- ubyte fs_output_semantic_name[PIPE_MAX_SHADER_OUTPUTS];
- ubyte fs_output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];
- uint fs_num_outputs = 0;
-
-
- _mesa_remove_output_reads(&stfp->Base.Base, PROGRAM_OUTPUT);
-
- /*
- * Convert Mesa program inputs to TGSI input register semantics.
- */
- for (attr = 0; attr < FRAG_ATTRIB_MAX; attr++) {
- if (inputsRead & (1 << attr)) {
- const GLuint slot = fs_num_inputs++;
-
- inputMapping[attr] = slot;
-
- switch (attr) {
- case FRAG_ATTRIB_WPOS:
- input_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
- input_semantic_index[slot] = 0;
- interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
- break;
- case FRAG_ATTRIB_COL0:
- input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
- input_semantic_index[slot] = 0;
- interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
- break;
- case FRAG_ATTRIB_COL1:
- input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
- input_semantic_index[slot] = 1;
- interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
- break;
- case FRAG_ATTRIB_FOGC:
- input_semantic_name[slot] = TGSI_SEMANTIC_FOG;
- input_semantic_index[slot] = 0;
- interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
- break;
- case FRAG_ATTRIB_FACE:
- input_semantic_name[slot] = TGSI_SEMANTIC_FACE;
- input_semantic_index[slot] = 0;
- interpMode[slot] = TGSI_INTERPOLATE_CONSTANT;
- break;
- /* In most cases, there is nothing special about these
- * inputs, so adopt a convention to use the generic
- * semantic name and the mesa FRAG_ATTRIB_ number as the
- * index.
- *
- * All that is required is that the vertex shader labels
- * its own outputs similarly, and that the vertex shader
- * generates at least every output required by the
- * fragment shader plus fixed-function hardware (such as
- * BFC).
- *
- * There is no requirement that semantic indexes start at
- * zero or be restricted to a particular range -- nobody
- * should be building tables based on semantic index.
- */
- case FRAG_ATTRIB_PNTC:
- case FRAG_ATTRIB_TEX0:
- case FRAG_ATTRIB_TEX1:
- case FRAG_ATTRIB_TEX2:
- case FRAG_ATTRIB_TEX3:
- case FRAG_ATTRIB_TEX4:
- case FRAG_ATTRIB_TEX5:
- case FRAG_ATTRIB_TEX6:
- case FRAG_ATTRIB_TEX7:
- case FRAG_ATTRIB_VAR0:
- default:
- /* Actually, let's try and zero-base this just for
- * readability of the generated TGSI.
- */
- assert(attr >= FRAG_ATTRIB_TEX0);
- input_semantic_index[slot] = (attr - FRAG_ATTRIB_TEX0);
- input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
- if (attr == FRAG_ATTRIB_PNTC)
- interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
- else
- interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
- break;
- }
- }
- else {
- inputMapping[attr] = -1;
- }
- }
-
- /*
- * Semantics and mapping for outputs
- */
- {
- uint numColors = 0;
- GLbitfield64 outputsWritten = stfp->Base.Base.OutputsWritten;
-
- /* if z is written, emit that first */
- if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) {
- fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_POSITION;
- fs_output_semantic_index[fs_num_outputs] = 0;
- outputMapping[FRAG_RESULT_DEPTH] = fs_num_outputs;
- fs_num_outputs++;
- outputsWritten &= ~(1 << FRAG_RESULT_DEPTH);
- }
-
- if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_STENCIL)) {
- fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_STENCIL;
- fs_output_semantic_index[fs_num_outputs] = 0;
- outputMapping[FRAG_RESULT_STENCIL] = fs_num_outputs;
- fs_num_outputs++;
- outputsWritten &= ~(1 << FRAG_RESULT_STENCIL);
- }
-
- /* handle remaning outputs (color) */
- for (attr = 0; attr < FRAG_RESULT_MAX; attr++) {
- if (outputsWritten & BITFIELD64_BIT(attr)) {
- switch (attr) {
- case FRAG_RESULT_DEPTH:
- case FRAG_RESULT_STENCIL:
- /* handled above */
- assert(0);
- break;
- case FRAG_RESULT_COLOR:
- write_all = GL_TRUE; /* fallthrough */
- default:
- assert(attr == FRAG_RESULT_COLOR ||
- (FRAG_RESULT_DATA0 <= attr && attr < FRAG_RESULT_MAX));
- fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_COLOR;
- fs_output_semantic_index[fs_num_outputs] = numColors;
- outputMapping[attr] = fs_num_outputs;
- numColors++;
- break;
- }
-
- fs_num_outputs++;
- }
- }
- }
-
- ureg = ureg_create( TGSI_PROCESSOR_FRAGMENT );
- if (ureg == NULL)
- return NULL;
-
- if (ST_DEBUG & DEBUG_MESA) {
- _mesa_print_program(&stfp->Base.Base);
- _mesa_print_program_parameters(st->ctx, &stfp->Base.Base);
- debug_printf("\n");
- }
- if (write_all == GL_TRUE)
- ureg_property_fs_color0_writes_all_cbufs(ureg, 1);
-
- error = st_translate_mesa_program(st->ctx,
- TGSI_PROCESSOR_FRAGMENT,
- ureg,
- &stfp->Base.Base,
- /* inputs */
- fs_num_inputs,
- inputMapping,
- input_semantic_name,
- input_semantic_index,
- interpMode,
- /* outputs */
- fs_num_outputs,
- outputMapping,
- fs_output_semantic_name,
- fs_output_semantic_index, FALSE );
-
- stfp->tgsi.tokens = ureg_get_tokens( ureg, NULL );
- ureg_destroy( ureg );
- }
-
- /* fill in variant */
- variant->driver_shader = pipe->create_fs_state(pipe, &stfp->tgsi);
- variant->key = *key;
-
- if (ST_DEBUG & DEBUG_TGSI) {
- tgsi_dump( stfp->tgsi.tokens, 0/*TGSI_DUMP_VERBOSE*/ );
- debug_printf("\n");
- }
-
- return variant;
-}
-
-
-/**
- * Translate fragment program if needed.
- */
-struct st_fp_variant *
-st_get_fp_variant(struct st_context *st,
- struct st_fragment_program *stfp,
- const struct st_fp_variant_key *key)
-{
- struct st_fp_variant *fpv;
-
- /* Search for existing variant */
- for (fpv = stfp->variants; fpv; fpv = fpv->next) {
- if (memcmp(&fpv->key, key, sizeof(*key)) == 0) {
- break;
- }
- }
-
- if (!fpv) {
- /* create new */
- fpv = st_translate_fragment_program(st, stfp, key);
- if (fpv) {
- /* insert into list */
- fpv->next = stfp->variants;
- stfp->variants = fpv;
- }
- }
-
- return fpv;
-}
-
-
-/**
- * Translate a geometry program to create a new variant.
- */
-static struct st_gp_variant *
-st_translate_geometry_program(struct st_context *st,
- struct st_geometry_program *stgp,
- const struct st_gp_variant_key *key)
-{
- GLuint inputMapping[GEOM_ATTRIB_MAX];
- GLuint outputMapping[GEOM_RESULT_MAX];
- struct pipe_context *pipe = st->pipe;
- enum pipe_error error;
- GLuint attr;
- const GLbitfield inputsRead = stgp->Base.Base.InputsRead;
- GLuint vslot = 0;
- GLuint num_generic = 0;
-
- uint gs_num_inputs = 0;
- uint gs_builtin_inputs = 0;
- uint gs_array_offset = 0;
-
- ubyte gs_output_semantic_name[PIPE_MAX_SHADER_OUTPUTS];
- ubyte gs_output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];
- uint gs_num_outputs = 0;
-
- GLint i;
- GLuint maxSlot = 0;
- struct ureg_program *ureg;
-
- struct st_gp_variant *gpv;
-
- gpv = CALLOC_STRUCT(st_gp_variant);
- if (!gpv)
- return NULL;
-
- _mesa_remove_output_reads(&stgp->Base.Base, PROGRAM_OUTPUT);
- _mesa_remove_output_reads(&stgp->Base.Base, PROGRAM_VARYING);
-
- ureg = ureg_create( TGSI_PROCESSOR_GEOMETRY );
- if (ureg == NULL) {
- FREE(gpv);
- return NULL;
- }
-
- /* which vertex output goes to the first geometry input */
- vslot = 0;
-
- memset(inputMapping, 0, sizeof(inputMapping));
- memset(outputMapping, 0, sizeof(outputMapping));
-
- /*
- * Convert Mesa program inputs to TGSI input register semantics.
- */
- for (attr = 0; attr < GEOM_ATTRIB_MAX; attr++) {
- if (inputsRead & (1 << attr)) {
- const GLuint slot = gs_num_inputs;
-
- gs_num_inputs++;
-
- inputMapping[attr] = slot;
-
- stgp->input_map[slot + gs_array_offset] = vslot - gs_builtin_inputs;
- stgp->input_to_index[attr] = vslot;
- stgp->index_to_input[vslot] = attr;
- ++vslot;
-
- if (attr != GEOM_ATTRIB_PRIMITIVE_ID) {
- gs_array_offset += 2;
- } else
- ++gs_builtin_inputs;
-
-#if 0
- debug_printf("input map at %d = %d\n",
- slot + gs_array_offset, stgp->input_map[slot + gs_array_offset]);
-#endif
-
- switch (attr) {
- case GEOM_ATTRIB_PRIMITIVE_ID:
- stgp->input_semantic_name[slot] = TGSI_SEMANTIC_PRIMID;
- stgp->input_semantic_index[slot] = 0;
- break;
- case GEOM_ATTRIB_POSITION:
- stgp->input_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
- stgp->input_semantic_index[slot] = 0;
- break;
- case GEOM_ATTRIB_COLOR0:
- stgp->input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
- stgp->input_semantic_index[slot] = 0;
- break;
- case GEOM_ATTRIB_COLOR1:
- stgp->input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
- stgp->input_semantic_index[slot] = 1;
- break;
- case GEOM_ATTRIB_FOG_FRAG_COORD:
- stgp->input_semantic_name[slot] = TGSI_SEMANTIC_FOG;
- stgp->input_semantic_index[slot] = 0;
- break;
- case GEOM_ATTRIB_TEX_COORD:
- stgp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
- stgp->input_semantic_index[slot] = num_generic++;
- break;
- case GEOM_ATTRIB_VAR0:
- /* fall-through */
- default:
- stgp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
- stgp->input_semantic_index[slot] = num_generic++;
- }
- }
- }
-
- /* initialize output semantics to defaults */
- for (i = 0; i < PIPE_MAX_SHADER_OUTPUTS; i++) {
- gs_output_semantic_name[i] = TGSI_SEMANTIC_GENERIC;
- gs_output_semantic_index[i] = 0;
- }
-
- num_generic = 0;
- /*
- * Determine number of outputs, the (default) output register
- * mapping and the semantic information for each output.
- */
- for (attr = 0; attr < GEOM_RESULT_MAX; attr++) {
- if (stgp->Base.Base.OutputsWritten & (1 << attr)) {
- GLuint slot;
-
- slot = gs_num_outputs;
- gs_num_outputs++;
- outputMapping[attr] = slot;
-
- switch (attr) {
- case GEOM_RESULT_POS:
- assert(slot == 0);
- gs_output_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
- gs_output_semantic_index[slot] = 0;
- break;
- case GEOM_RESULT_COL0:
- gs_output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
- gs_output_semantic_index[slot] = 0;
- break;
- case GEOM_RESULT_COL1:
- gs_output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
- gs_output_semantic_index[slot] = 1;
- break;
- case GEOM_RESULT_SCOL0:
- gs_output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;
- gs_output_semantic_index[slot] = 0;
- break;
- case GEOM_RESULT_SCOL1:
- gs_output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;
- gs_output_semantic_index[slot] = 1;
- break;
- case GEOM_RESULT_FOGC:
- gs_output_semantic_name[slot] = TGSI_SEMANTIC_FOG;
- gs_output_semantic_index[slot] = 0;
- break;
- case GEOM_RESULT_PSIZ:
- gs_output_semantic_name[slot] = TGSI_SEMANTIC_PSIZE;
- gs_output_semantic_index[slot] = 0;
- break;
- case GEOM_RESULT_TEX0:
- case GEOM_RESULT_TEX1:
- case GEOM_RESULT_TEX2:
- case GEOM_RESULT_TEX3:
- case GEOM_RESULT_TEX4:
- case GEOM_RESULT_TEX5:
- case GEOM_RESULT_TEX6:
- case GEOM_RESULT_TEX7:
- /* fall-through */
- case GEOM_RESULT_VAR0:
- /* fall-through */
- default:
- assert(slot < Elements(gs_output_semantic_name));
- /* use default semantic info */
- gs_output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
- gs_output_semantic_index[slot] = num_generic++;
- }
- }
- }
-
- assert(gs_output_semantic_name[0] == TGSI_SEMANTIC_POSITION);
-
- /* find max output slot referenced to compute gs_num_outputs */
- for (attr = 0; attr < GEOM_RESULT_MAX; attr++) {
- if (outputMapping[attr] != ~0 && outputMapping[attr] > maxSlot)
- maxSlot = outputMapping[attr];
- }
- gs_num_outputs = maxSlot + 1;
-
-#if 0 /* debug */
- {
- GLuint i;
- printf("outputMapping? %d\n", outputMapping ? 1 : 0);
- if (outputMapping) {
- printf("attr -> slot\n");
- for (i = 0; i < 16; i++) {
- printf(" %2d %3d\n", i, outputMapping[i]);
- }
- }
- printf("slot sem_name sem_index\n");
- for (i = 0; i < gs_num_outputs; i++) {
- printf(" %2d %d %d\n",
- i,
- gs_output_semantic_name[i],
- gs_output_semantic_index[i]);
- }
- }
-#endif
-
- /* free old shader state, if any */
- if (stgp->tgsi.tokens) {
- st_free_tokens(stgp->tgsi.tokens);
- stgp->tgsi.tokens = NULL;
- }
-
- ureg_property_gs_input_prim(ureg, stgp->Base.InputType);
- ureg_property_gs_output_prim(ureg, stgp->Base.OutputType);
- ureg_property_gs_max_vertices(ureg, stgp->Base.VerticesOut);
-
- error = st_translate_mesa_program(st->ctx,
- TGSI_PROCESSOR_GEOMETRY,
- ureg,
- &stgp->Base.Base,
- /* inputs */
- gs_num_inputs,
- inputMapping,
- stgp->input_semantic_name,
- stgp->input_semantic_index,
- NULL,
- /* outputs */
- gs_num_outputs,
- outputMapping,
- gs_output_semantic_name,
- gs_output_semantic_index,
- FALSE);
-
- stgp->num_inputs = gs_num_inputs;
- stgp->tgsi.tokens = ureg_get_tokens( ureg, NULL );
- ureg_destroy( ureg );
-
- /* fill in new variant */
- gpv->driver_shader = pipe->create_gs_state(pipe, &stgp->tgsi);
- gpv->key = *key;
-
- if ((ST_DEBUG & DEBUG_TGSI) && (ST_DEBUG & DEBUG_MESA)) {
- _mesa_print_program(&stgp->Base.Base);
- debug_printf("\n");
- }
-
- if (ST_DEBUG & DEBUG_TGSI) {
- tgsi_dump(stgp->tgsi.tokens, 0);
- debug_printf("\n");
- }
-
- return gpv;
-}
-
-
-/**
- * Get/create geometry program variant.
- */
-struct st_gp_variant *
-st_get_gp_variant(struct st_context *st,
- struct st_geometry_program *stgp,
- const struct st_gp_variant_key *key)
-{
- struct st_gp_variant *gpv;
-
- /* Search for existing variant */
- for (gpv = stgp->variants; gpv; gpv = gpv->next) {
- if (memcmp(&gpv->key, key, sizeof(*key)) == 0) {
- break;
- }
- }
-
- if (!gpv) {
- /* create new */
- gpv = st_translate_geometry_program(st, stgp, key);
- if (gpv) {
- /* insert into list */
- gpv->next = stgp->variants;
- stgp->variants = gpv;
- }
- }
-
- return gpv;
-}
-
-
-
-
-/**
- * Debug- print current shader text
- */
-void
-st_print_shaders(struct gl_context *ctx)
-{
- struct gl_shader_program *shProg[3] = {
- ctx->Shader.CurrentVertexProgram,
- ctx->Shader.CurrentGeometryProgram,
- ctx->Shader.CurrentFragmentProgram,
- };
- unsigned j;
-
- for (j = 0; j < 3; j++) {
- unsigned i;
-
- if (shProg[j] == NULL)
- continue;
-
- for (i = 0; i < shProg[j]->NumShaders; i++) {
- struct gl_shader *sh;
-
- switch (shProg[j]->Shaders[i]->Type) {
- case GL_VERTEX_SHADER:
- sh = (i != 0) ? NULL : shProg[j]->Shaders[i];
- break;
- case GL_GEOMETRY_SHADER_ARB:
- sh = (i != 1) ? NULL : shProg[j]->Shaders[i];
- break;
- case GL_FRAGMENT_SHADER:
- sh = (i != 2) ? NULL : shProg[j]->Shaders[i];
- break;
- default:
- assert(0);
- sh = NULL;
- break;
- }
-
- if (sh != NULL) {
- printf("GLSL shader %u of %u:\n", i, shProg[j]->NumShaders);
- printf("%s\n", sh->Source);
- }
- }
- }
-}
-
-
-/**
- * Vert/Geom/Frag programs have per-context variants. Free all the
- * variants attached to the given program which match the given context.
- */
-static void
-destroy_program_variants(struct st_context *st, struct gl_program *program)
-{
- if (!program)
- return;
-
- switch (program->Target) {
- case GL_VERTEX_PROGRAM_ARB:
- {
- struct st_vertex_program *stvp = (struct st_vertex_program *) program;
- struct st_vp_variant *vpv, **prevPtr = &stvp->variants;
-
- for (vpv = stvp->variants; vpv; ) {
- struct st_vp_variant *next = vpv->next;
- if (vpv->key.st == st) {
- /* unlink from list */
- *prevPtr = next;
- /* destroy this variant */
- delete_vp_variant(st, vpv);
- }
- else {
- prevPtr = &vpv->next;
- }
- vpv = next;
- }
- }
- break;
- case GL_FRAGMENT_PROGRAM_ARB:
- {
- struct st_fragment_program *stfp =
- (struct st_fragment_program *) program;
- struct st_fp_variant *fpv, **prevPtr = &stfp->variants;
-
- for (fpv = stfp->variants; fpv; ) {
- struct st_fp_variant *next = fpv->next;
- if (fpv->key.st == st) {
- /* unlink from list */
- *prevPtr = next;
- /* destroy this variant */
- delete_fp_variant(st, fpv);
- }
- else {
- prevPtr = &fpv->next;
- }
- fpv = next;
- }
- }
- break;
- case MESA_GEOMETRY_PROGRAM:
- {
- struct st_geometry_program *stgp =
- (struct st_geometry_program *) program;
- struct st_gp_variant *gpv, **prevPtr = &stgp->variants;
-
- for (gpv = stgp->variants; gpv; ) {
- struct st_gp_variant *next = gpv->next;
- if (gpv->key.st == st) {
- /* unlink from list */
- *prevPtr = next;
- /* destroy this variant */
- delete_gp_variant(st, gpv);
- }
- else {
- prevPtr = &gpv->next;
- }
- gpv = next;
- }
- }
- break;
- default:
- _mesa_problem(NULL, "Unexpected program target in "
- "destroy_program_variants_cb()");
- }
-}
-
-
-/**
- * Callback for _mesa_HashWalk. Free all the shader's program variants
- * which match the given context.
- */
-static void
-destroy_shader_program_variants_cb(GLuint key, void *data, void *userData)
-{
- struct st_context *st = (struct st_context *) userData;
- struct gl_shader *shader = (struct gl_shader *) data;
-
- switch (shader->Type) {
- case GL_SHADER_PROGRAM_MESA:
- {
- struct gl_shader_program *shProg = (struct gl_shader_program *) data;
- GLuint i;
-
- for (i = 0; i < shProg->NumShaders; i++) {
- destroy_program_variants(st, shProg->Shaders[i]->Program);
- }
-
- destroy_program_variants(st, (struct gl_program *)
- shProg->VertexProgram);
- destroy_program_variants(st, (struct gl_program *)
- shProg->FragmentProgram);
- destroy_program_variants(st, (struct gl_program *)
- shProg->GeometryProgram);
- }
- break;
- case GL_VERTEX_SHADER:
- case GL_FRAGMENT_SHADER:
- case GL_GEOMETRY_SHADER:
- {
- destroy_program_variants(st, shader->Program);
- }
- break;
- default:
- assert(0);
- }
-}
-
-
-/**
- * Callback for _mesa_HashWalk. Free all the program variants which match
- * the given context.
- */
-static void
-destroy_program_variants_cb(GLuint key, void *data, void *userData)
-{
- struct st_context *st = (struct st_context *) userData;
- struct gl_program *program = (struct gl_program *) data;
- destroy_program_variants(st, program);
-}
-
-
-/**
- * Walk over all shaders and programs to delete any variants which
- * belong to the given context.
- * This is called during context tear-down.
- */
-void
-st_destroy_program_variants(struct st_context *st)
-{
- /* ARB vert/frag program */
- _mesa_HashWalk(st->ctx->Shared->Programs,
- destroy_program_variants_cb, st);
-
- /* GLSL vert/frag/geom shaders */
- _mesa_HashWalk(st->ctx->Shared->ShaderObjects,
- destroy_shader_program_variants_cb, st);
-}
+/**************************************************************************
+ *
+ * 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 "main/imports.h"
+#include "main/hash.h"
+#include "main/mfeatures.h"
+#include "main/mtypes.h"
+#include "program/prog_parameter.h"
+#include "program/prog_print.h"
+#include "program/programopt.h"
+
+#include "pipe/p_context.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_shader_tokens.h"
+#include "draw/draw_context.h"
+#include "tgsi/tgsi_dump.h"
+#include "tgsi/tgsi_ureg.h"
+
+#include "st_debug.h"
+#include "st_cb_bitmap.h"
+#include "st_cb_drawpixels.h"
+#include "st_context.h"
+#include "st_program.h"
+#include "st_mesa_to_tgsi.h"
+#include "cso_cache/cso_context.h"
+
+
+
+/**
+ * Delete a vertex program variant. Note the caller must unlink
+ * the variant from the linked list.
+ */
+static void
+delete_vp_variant(struct st_context *st, struct st_vp_variant *vpv)
+{
+ if (vpv->driver_shader)
+ cso_delete_vertex_shader(st->cso_context, vpv->driver_shader);
+
+#if FEATURE_feedback || FEATURE_rastpos
+ if (vpv->draw_shader)
+ draw_delete_vertex_shader( st->draw, vpv->draw_shader );
+#endif
+
+ if (vpv->tgsi.tokens)
+ st_free_tokens(vpv->tgsi.tokens);
+
+ FREE( vpv );
+}
+
+
+
+/**
+ * Clean out any old compilations:
+ */
+void
+st_release_vp_variants( struct st_context *st,
+ struct st_vertex_program *stvp )
+{
+ struct st_vp_variant *vpv;
+
+ for (vpv = stvp->variants; vpv; ) {
+ struct st_vp_variant *next = vpv->next;
+ delete_vp_variant(st, vpv);
+ vpv = next;
+ }
+
+ stvp->variants = NULL;
+}
+
+
+
+/**
+ * Delete a fragment program variant. Note the caller must unlink
+ * the variant from the linked list.
+ */
+static void
+delete_fp_variant(struct st_context *st, struct st_fp_variant *fpv)
+{
+ if (fpv->driver_shader)
+ cso_delete_fragment_shader(st->cso_context, fpv->driver_shader);
+ if (fpv->parameters)
+ _mesa_free_parameter_list(fpv->parameters);
+
+ FREE(fpv);
+}
+
+
+/**
+ * Free all variants of a fragment program.
+ */
+void
+st_release_fp_variants(struct st_context *st, struct st_fragment_program *stfp)
+{
+ struct st_fp_variant *fpv;
+
+ for (fpv = stfp->variants; fpv; ) {
+ struct st_fp_variant *next = fpv->next;
+ delete_fp_variant(st, fpv);
+ fpv = next;
+ }
+
+ stfp->variants = NULL;
+}
+
+
+/**
+ * Delete a geometry program variant. Note the caller must unlink
+ * the variant from the linked list.
+ */
+static void
+delete_gp_variant(struct st_context *st, struct st_gp_variant *gpv)
+{
+ if (gpv->driver_shader)
+ cso_delete_geometry_shader(st->cso_context, gpv->driver_shader);
+
+ FREE(gpv);
+}
+
+
+/**
+ * Free all variants of a geometry program.
+ */
+void
+st_release_gp_variants(struct st_context *st, struct st_geometry_program *stgp)
+{
+ struct st_gp_variant *gpv;
+
+ for (gpv = stgp->variants; gpv; ) {
+ struct st_gp_variant *next = gpv->next;
+ delete_gp_variant(st, gpv);
+ gpv = next;
+ }
+
+ stgp->variants = NULL;
+}
+
+
+
+
+/**
+ * Translate a Mesa vertex shader into a TGSI shader.
+ * \param outputMapping to map vertex program output registers (VERT_RESULT_x)
+ * to TGSI output slots
+ * \param tokensOut destination for TGSI tokens
+ * \return pointer to cached pipe_shader object.
+ */
+static void
+st_prepare_vertex_program(struct st_context *st,
+ struct st_vertex_program *stvp)
+{
+ GLuint attr;
+
+ stvp->num_inputs = 0;
+ stvp->num_outputs = 0;
+
+ if (stvp->Base.IsPositionInvariant)
+ _mesa_insert_mvp_code(st->ctx, &stvp->Base);
+
+ assert(stvp->Base.Base.NumInstructions > 1);
+
+ /*
+ * Determine number of inputs, the mappings between VERT_ATTRIB_x
+ * and TGSI generic input indexes, plus input attrib semantic info.
+ */
+ for (attr = 0; attr < VERT_ATTRIB_MAX; attr++) {
+ if (stvp->Base.Base.InputsRead & (1 << attr)) {
+ stvp->input_to_index[attr] = stvp->num_inputs;
+ stvp->index_to_input[stvp->num_inputs] = attr;
+ stvp->num_inputs++;
+ }
+ }
+ /* bit of a hack, presetup potentially unused edgeflag input */
+ stvp->input_to_index[VERT_ATTRIB_EDGEFLAG] = stvp->num_inputs;
+ stvp->index_to_input[stvp->num_inputs] = VERT_ATTRIB_EDGEFLAG;
+
+ /* Compute mapping of vertex program outputs to slots.
+ */
+ for (attr = 0; attr < VERT_RESULT_MAX; attr++) {
+ if ((stvp->Base.Base.OutputsWritten & BITFIELD64_BIT(attr)) == 0) {
+ stvp->result_to_output[attr] = ~0;
+ }
+ else {
+ unsigned slot = stvp->num_outputs++;
+
+ stvp->result_to_output[attr] = slot;
+
+ switch (attr) {
+ case VERT_RESULT_HPOS:
+ stvp->output_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
+ stvp->output_semantic_index[slot] = 0;
+ break;
+ case VERT_RESULT_COL0:
+ stvp->output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
+ stvp->output_semantic_index[slot] = 0;
+ break;
+ case VERT_RESULT_COL1:
+ stvp->output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
+ stvp->output_semantic_index[slot] = 1;
+ break;
+ case VERT_RESULT_BFC0:
+ stvp->output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;
+ stvp->output_semantic_index[slot] = 0;
+ break;
+ case VERT_RESULT_BFC1:
+ stvp->output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;
+ stvp->output_semantic_index[slot] = 1;
+ break;
+ case VERT_RESULT_FOGC:
+ stvp->output_semantic_name[slot] = TGSI_SEMANTIC_FOG;
+ stvp->output_semantic_index[slot] = 0;
+ break;
+ case VERT_RESULT_PSIZ:
+ stvp->output_semantic_name[slot] = TGSI_SEMANTIC_PSIZE;
+ stvp->output_semantic_index[slot] = 0;
+ break;
+ case VERT_RESULT_EDGE:
+ assert(0);
+ break;
+
+ case VERT_RESULT_TEX0:
+ case VERT_RESULT_TEX1:
+ case VERT_RESULT_TEX2:
+ case VERT_RESULT_TEX3:
+ case VERT_RESULT_TEX4:
+ case VERT_RESULT_TEX5:
+ case VERT_RESULT_TEX6:
+ case VERT_RESULT_TEX7:
+ stvp->output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+ stvp->output_semantic_index[slot] = attr - VERT_RESULT_TEX0;
+ break;
+
+ case VERT_RESULT_VAR0:
+ default:
+ assert(attr < VERT_RESULT_MAX);
+ stvp->output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+ stvp->output_semantic_index[slot] = (FRAG_ATTRIB_VAR0 -
+ FRAG_ATTRIB_TEX0 +
+ attr -
+ VERT_RESULT_VAR0);
+ break;
+ }
+ }
+ }
+ /* similar hack to above, presetup potentially unused edgeflag output */
+ stvp->result_to_output[VERT_RESULT_EDGE] = stvp->num_outputs;
+ stvp->output_semantic_name[stvp->num_outputs] = TGSI_SEMANTIC_EDGEFLAG;
+ stvp->output_semantic_index[stvp->num_outputs] = 0;
+}
+
+
+/**
+ * Translate a vertex program to create a new variant.
+ */
+static struct st_vp_variant *
+st_translate_vertex_program(struct st_context *st,
+ struct st_vertex_program *stvp,
+ const struct st_vp_variant_key *key)
+{
+ struct st_vp_variant *vpv = CALLOC_STRUCT(st_vp_variant);
+ struct pipe_context *pipe = st->pipe;
+ struct ureg_program *ureg;
+ enum pipe_error error;
+ unsigned num_outputs;
+
+ st_prepare_vertex_program( st, stvp );
+
+ _mesa_remove_output_reads(&stvp->Base.Base, PROGRAM_OUTPUT);
+ _mesa_remove_output_reads(&stvp->Base.Base, PROGRAM_VARYING);
+
+ ureg = ureg_create( TGSI_PROCESSOR_VERTEX );
+ if (ureg == NULL) {
+ FREE(vpv);
+ return NULL;
+ }
+
+ vpv->key = *key;
+
+ vpv->num_inputs = stvp->num_inputs;
+ num_outputs = stvp->num_outputs;
+ if (key->passthrough_edgeflags) {
+ vpv->num_inputs++;
+ num_outputs++;
+ }
+
+ if (ST_DEBUG & DEBUG_MESA) {
+ _mesa_print_program(&stvp->Base.Base);
+ _mesa_print_program_parameters(st->ctx, &stvp->Base.Base);
+ debug_printf("\n");
+ }
+
+ error = st_translate_mesa_program(st->ctx,
+ TGSI_PROCESSOR_VERTEX,
+ ureg,
+ &stvp->Base.Base,
+ /* inputs */
+ vpv->num_inputs,
+ stvp->input_to_index,
+ NULL, /* input semantic name */
+ NULL, /* input semantic index */
+ NULL,
+ /* outputs */
+ num_outputs,
+ stvp->result_to_output,
+ stvp->output_semantic_name,
+ stvp->output_semantic_index,
+ key->passthrough_edgeflags );
+
+ if (error)
+ goto fail;
+
+ vpv->tgsi.tokens = ureg_get_tokens( ureg, NULL );
+ if (!vpv->tgsi.tokens)
+ goto fail;
+
+ ureg_destroy( ureg );
+
+ vpv->driver_shader = pipe->create_vs_state(pipe, &vpv->tgsi);
+
+ if (ST_DEBUG & DEBUG_TGSI) {
+ tgsi_dump( vpv->tgsi.tokens, 0 );
+ debug_printf("\n");
+ }
+
+ return vpv;
+
+fail:
+ debug_printf("%s: failed to translate Mesa program:\n", __FUNCTION__);
+ _mesa_print_program(&stvp->Base.Base);
+ debug_assert(0);
+
+ ureg_destroy( ureg );
+ return NULL;
+}
+
+
+/**
+ * Find/create a vertex program variant.
+ */
+struct st_vp_variant *
+st_get_vp_variant(struct st_context *st,
+ struct st_vertex_program *stvp,
+ const struct st_vp_variant_key *key)
+{
+ struct st_vp_variant *vpv;
+
+ /* Search for existing variant */
+ for (vpv = stvp->variants; vpv; vpv = vpv->next) {
+ if (memcmp(&vpv->key, key, sizeof(*key)) == 0) {
+ break;
+ }
+ }
+
+ if (!vpv) {
+ /* create now */
+ vpv = st_translate_vertex_program(st, stvp, key);
+ if (vpv) {
+ /* insert into list */
+ vpv->next = stvp->variants;
+ stvp->variants = vpv;
+ }
+ }
+
+ return vpv;
+}
+
+
+/**
+ * Translate a Mesa fragment shader into a TGSI shader using extra info in
+ * the key.
+ * \return new fragment program variant
+ */
+static struct st_fp_variant *
+st_translate_fragment_program(struct st_context *st,
+ struct st_fragment_program *stfp,
+ const struct st_fp_variant_key *key)
+{
+ struct pipe_context *pipe = st->pipe;
+ struct st_fp_variant *variant = CALLOC_STRUCT(st_fp_variant);
+ GLboolean deleteFP = GL_FALSE;
+
+ if (!variant)
+ return NULL;
+
+ assert(!(key->bitmap && key->drawpixels));
+
+#if FEATURE_drawpix
+ if (key->bitmap) {
+ /* glBitmap drawing */
+ struct gl_fragment_program *fp; /* we free this temp program below */
+
+ st_make_bitmap_fragment_program(st, &stfp->Base,
+ &fp, &variant->bitmap_sampler);
+
+ variant->parameters = _mesa_clone_parameter_list(fp->Base.Parameters);
+ stfp = st_fragment_program(fp);
+ deleteFP = GL_TRUE;
+ }
+ else if (key->drawpixels) {
+ /* glDrawPixels drawing */
+ struct gl_fragment_program *fp; /* we free this temp program below */
+
+ if (key->drawpixels_z || key->drawpixels_stencil) {
+ fp = st_make_drawpix_z_stencil_program(st, key->drawpixels_z,
+ key->drawpixels_stencil);
+ }
+ else {
+ /* RGBA */
+ st_make_drawpix_fragment_program(st, &stfp->Base, &fp);
+ variant->parameters = _mesa_clone_parameter_list(fp->Base.Parameters);
+ deleteFP = GL_TRUE;
+ }
+ stfp = st_fragment_program(fp);
+ }
+#endif
+
+ if (!stfp->tgsi.tokens) {
+ /* need to translate Mesa instructions to TGSI now */
+ GLuint outputMapping[FRAG_RESULT_MAX];
+ GLuint inputMapping[FRAG_ATTRIB_MAX];
+ GLuint interpMode[PIPE_MAX_SHADER_INPUTS]; /* XXX size? */
+ GLuint attr;
+ enum pipe_error error;
+ const GLbitfield inputsRead = stfp->Base.Base.InputsRead;
+ struct ureg_program *ureg;
+ GLboolean write_all = GL_FALSE;
+
+ ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS];
+ ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];
+ uint fs_num_inputs = 0;
+
+ ubyte fs_output_semantic_name[PIPE_MAX_SHADER_OUTPUTS];
+ ubyte fs_output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];
+ uint fs_num_outputs = 0;
+
+
+ _mesa_remove_output_reads(&stfp->Base.Base, PROGRAM_OUTPUT);
+
+ /*
+ * Convert Mesa program inputs to TGSI input register semantics.
+ */
+ for (attr = 0; attr < FRAG_ATTRIB_MAX; attr++) {
+ if (inputsRead & (1 << attr)) {
+ const GLuint slot = fs_num_inputs++;
+
+ inputMapping[attr] = slot;
+
+ switch (attr) {
+ case FRAG_ATTRIB_WPOS:
+ input_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
+ input_semantic_index[slot] = 0;
+ interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
+ break;
+ case FRAG_ATTRIB_COL0:
+ input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
+ input_semantic_index[slot] = 0;
+ interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
+ break;
+ case FRAG_ATTRIB_COL1:
+ input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
+ input_semantic_index[slot] = 1;
+ interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
+ break;
+ case FRAG_ATTRIB_FOGC:
+ input_semantic_name[slot] = TGSI_SEMANTIC_FOG;
+ input_semantic_index[slot] = 0;
+ interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
+ break;
+ case FRAG_ATTRIB_FACE:
+ input_semantic_name[slot] = TGSI_SEMANTIC_FACE;
+ input_semantic_index[slot] = 0;
+ interpMode[slot] = TGSI_INTERPOLATE_CONSTANT;
+ break;
+ /* In most cases, there is nothing special about these
+ * inputs, so adopt a convention to use the generic
+ * semantic name and the mesa FRAG_ATTRIB_ number as the
+ * index.
+ *
+ * All that is required is that the vertex shader labels
+ * its own outputs similarly, and that the vertex shader
+ * generates at least every output required by the
+ * fragment shader plus fixed-function hardware (such as
+ * BFC).
+ *
+ * There is no requirement that semantic indexes start at
+ * zero or be restricted to a particular range -- nobody
+ * should be building tables based on semantic index.
+ */
+ case FRAG_ATTRIB_PNTC:
+ case FRAG_ATTRIB_TEX0:
+ case FRAG_ATTRIB_TEX1:
+ case FRAG_ATTRIB_TEX2:
+ case FRAG_ATTRIB_TEX3:
+ case FRAG_ATTRIB_TEX4:
+ case FRAG_ATTRIB_TEX5:
+ case FRAG_ATTRIB_TEX6:
+ case FRAG_ATTRIB_TEX7:
+ case FRAG_ATTRIB_VAR0:
+ default:
+ /* Actually, let's try and zero-base this just for
+ * readability of the generated TGSI.
+ */
+ assert(attr >= FRAG_ATTRIB_TEX0);
+ input_semantic_index[slot] = (attr - FRAG_ATTRIB_TEX0);
+ input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+ if (attr == FRAG_ATTRIB_PNTC)
+ interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
+ else
+ interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
+ break;
+ }
+ }
+ else {
+ inputMapping[attr] = -1;
+ }
+ }
+
+ /*
+ * Semantics and mapping for outputs
+ */
+ {
+ uint numColors = 0;
+ GLbitfield64 outputsWritten = stfp->Base.Base.OutputsWritten;
+
+ /* if z is written, emit that first */
+ if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) {
+ fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_POSITION;
+ fs_output_semantic_index[fs_num_outputs] = 0;
+ outputMapping[FRAG_RESULT_DEPTH] = fs_num_outputs;
+ fs_num_outputs++;
+ outputsWritten &= ~(1 << FRAG_RESULT_DEPTH);
+ }
+
+ if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_STENCIL)) {
+ fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_STENCIL;
+ fs_output_semantic_index[fs_num_outputs] = 0;
+ outputMapping[FRAG_RESULT_STENCIL] = fs_num_outputs;
+ fs_num_outputs++;
+ outputsWritten &= ~(1 << FRAG_RESULT_STENCIL);
+ }
+
+ /* handle remaning outputs (color) */
+ for (attr = 0; attr < FRAG_RESULT_MAX; attr++) {
+ if (outputsWritten & BITFIELD64_BIT(attr)) {
+ switch (attr) {
+ case FRAG_RESULT_DEPTH:
+ case FRAG_RESULT_STENCIL:
+ /* handled above */
+ assert(0);
+ break;
+ case FRAG_RESULT_COLOR:
+ write_all = GL_TRUE; /* fallthrough */
+ default:
+ assert(attr == FRAG_RESULT_COLOR ||
+ (FRAG_RESULT_DATA0 <= attr && attr < FRAG_RESULT_MAX));
+ fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_COLOR;
+ fs_output_semantic_index[fs_num_outputs] = numColors;
+ outputMapping[attr] = fs_num_outputs;
+ numColors++;
+ break;
+ }
+
+ fs_num_outputs++;
+ }
+ }
+ }
+
+ ureg = ureg_create( TGSI_PROCESSOR_FRAGMENT );
+ if (ureg == NULL)
+ return NULL;
+
+ if (ST_DEBUG & DEBUG_MESA) {
+ _mesa_print_program(&stfp->Base.Base);
+ _mesa_print_program_parameters(st->ctx, &stfp->Base.Base);
+ debug_printf("\n");
+ }
+ if (write_all == GL_TRUE)
+ ureg_property_fs_color0_writes_all_cbufs(ureg, 1);
+
+ error = st_translate_mesa_program(st->ctx,
+ TGSI_PROCESSOR_FRAGMENT,
+ ureg,
+ &stfp->Base.Base,
+ /* inputs */
+ fs_num_inputs,
+ inputMapping,
+ input_semantic_name,
+ input_semantic_index,
+ interpMode,
+ /* outputs */
+ fs_num_outputs,
+ outputMapping,
+ fs_output_semantic_name,
+ fs_output_semantic_index, FALSE );
+
+ stfp->tgsi.tokens = ureg_get_tokens( ureg, NULL );
+ ureg_destroy( ureg );
+ }
+
+ /* fill in variant */
+ variant->driver_shader = pipe->create_fs_state(pipe, &stfp->tgsi);
+ variant->key = *key;
+
+ if (ST_DEBUG & DEBUG_TGSI) {
+ tgsi_dump( stfp->tgsi.tokens, 0/*TGSI_DUMP_VERBOSE*/ );
+ debug_printf("\n");
+ }
+
+ if (deleteFP) {
+ /* Free the temporary program made above */
+ struct gl_fragment_program *fp = &stfp->Base;
+ _mesa_reference_fragprog(st->ctx, &fp, NULL);
+ }
+
+ return variant;
+}
+
+
+/**
+ * Translate fragment program if needed.
+ */
+struct st_fp_variant *
+st_get_fp_variant(struct st_context *st,
+ struct st_fragment_program *stfp,
+ const struct st_fp_variant_key *key)
+{
+ struct st_fp_variant *fpv;
+
+ /* Search for existing variant */
+ for (fpv = stfp->variants; fpv; fpv = fpv->next) {
+ if (memcmp(&fpv->key, key, sizeof(*key)) == 0) {
+ break;
+ }
+ }
+
+ if (!fpv) {
+ /* create new */
+ fpv = st_translate_fragment_program(st, stfp, key);
+ if (fpv) {
+ /* insert into list */
+ fpv->next = stfp->variants;
+ stfp->variants = fpv;
+ }
+ }
+
+ return fpv;
+}
+
+
+/**
+ * Translate a geometry program to create a new variant.
+ */
+static struct st_gp_variant *
+st_translate_geometry_program(struct st_context *st,
+ struct st_geometry_program *stgp,
+ const struct st_gp_variant_key *key)
+{
+ GLuint inputMapping[GEOM_ATTRIB_MAX];
+ GLuint outputMapping[GEOM_RESULT_MAX];
+ struct pipe_context *pipe = st->pipe;
+ enum pipe_error error;
+ GLuint attr;
+ const GLbitfield inputsRead = stgp->Base.Base.InputsRead;
+ GLuint vslot = 0;
+ GLuint num_generic = 0;
+
+ uint gs_num_inputs = 0;
+ uint gs_builtin_inputs = 0;
+ uint gs_array_offset = 0;
+
+ ubyte gs_output_semantic_name[PIPE_MAX_SHADER_OUTPUTS];
+ ubyte gs_output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];
+ uint gs_num_outputs = 0;
+
+ GLint i;
+ GLuint maxSlot = 0;
+ struct ureg_program *ureg;
+
+ struct st_gp_variant *gpv;
+
+ gpv = CALLOC_STRUCT(st_gp_variant);
+ if (!gpv)
+ return NULL;
+
+ _mesa_remove_output_reads(&stgp->Base.Base, PROGRAM_OUTPUT);
+ _mesa_remove_output_reads(&stgp->Base.Base, PROGRAM_VARYING);
+
+ ureg = ureg_create( TGSI_PROCESSOR_GEOMETRY );
+ if (ureg == NULL) {
+ FREE(gpv);
+ return NULL;
+ }
+
+ /* which vertex output goes to the first geometry input */
+ vslot = 0;
+
+ memset(inputMapping, 0, sizeof(inputMapping));
+ memset(outputMapping, 0, sizeof(outputMapping));
+
+ /*
+ * Convert Mesa program inputs to TGSI input register semantics.
+ */
+ for (attr = 0; attr < GEOM_ATTRIB_MAX; attr++) {
+ if (inputsRead & (1 << attr)) {
+ const GLuint slot = gs_num_inputs;
+
+ gs_num_inputs++;
+
+ inputMapping[attr] = slot;
+
+ stgp->input_map[slot + gs_array_offset] = vslot - gs_builtin_inputs;
+ stgp->input_to_index[attr] = vslot;
+ stgp->index_to_input[vslot] = attr;
+ ++vslot;
+
+ if (attr != GEOM_ATTRIB_PRIMITIVE_ID) {
+ gs_array_offset += 2;
+ } else
+ ++gs_builtin_inputs;
+
+#if 0
+ debug_printf("input map at %d = %d\n",
+ slot + gs_array_offset, stgp->input_map[slot + gs_array_offset]);
+#endif
+
+ switch (attr) {
+ case GEOM_ATTRIB_PRIMITIVE_ID:
+ stgp->input_semantic_name[slot] = TGSI_SEMANTIC_PRIMID;
+ stgp->input_semantic_index[slot] = 0;
+ break;
+ case GEOM_ATTRIB_POSITION:
+ stgp->input_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
+ stgp->input_semantic_index[slot] = 0;
+ break;
+ case GEOM_ATTRIB_COLOR0:
+ stgp->input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
+ stgp->input_semantic_index[slot] = 0;
+ break;
+ case GEOM_ATTRIB_COLOR1:
+ stgp->input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
+ stgp->input_semantic_index[slot] = 1;
+ break;
+ case GEOM_ATTRIB_FOG_FRAG_COORD:
+ stgp->input_semantic_name[slot] = TGSI_SEMANTIC_FOG;
+ stgp->input_semantic_index[slot] = 0;
+ break;
+ case GEOM_ATTRIB_TEX_COORD:
+ stgp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+ stgp->input_semantic_index[slot] = num_generic++;
+ break;
+ case GEOM_ATTRIB_VAR0:
+ /* fall-through */
+ default:
+ stgp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+ stgp->input_semantic_index[slot] = num_generic++;
+ }
+ }
+ }
+
+ /* initialize output semantics to defaults */
+ for (i = 0; i < PIPE_MAX_SHADER_OUTPUTS; i++) {
+ gs_output_semantic_name[i] = TGSI_SEMANTIC_GENERIC;
+ gs_output_semantic_index[i] = 0;
+ }
+
+ num_generic = 0;
+ /*
+ * Determine number of outputs, the (default) output register
+ * mapping and the semantic information for each output.
+ */
+ for (attr = 0; attr < GEOM_RESULT_MAX; attr++) {
+ if (stgp->Base.Base.OutputsWritten & (1 << attr)) {
+ GLuint slot;
+
+ slot = gs_num_outputs;
+ gs_num_outputs++;
+ outputMapping[attr] = slot;
+
+ switch (attr) {
+ case GEOM_RESULT_POS:
+ assert(slot == 0);
+ gs_output_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
+ gs_output_semantic_index[slot] = 0;
+ break;
+ case GEOM_RESULT_COL0:
+ gs_output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
+ gs_output_semantic_index[slot] = 0;
+ break;
+ case GEOM_RESULT_COL1:
+ gs_output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
+ gs_output_semantic_index[slot] = 1;
+ break;
+ case GEOM_RESULT_SCOL0:
+ gs_output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;
+ gs_output_semantic_index[slot] = 0;
+ break;
+ case GEOM_RESULT_SCOL1:
+ gs_output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;
+ gs_output_semantic_index[slot] = 1;
+ break;
+ case GEOM_RESULT_FOGC:
+ gs_output_semantic_name[slot] = TGSI_SEMANTIC_FOG;
+ gs_output_semantic_index[slot] = 0;
+ break;
+ case GEOM_RESULT_PSIZ:
+ gs_output_semantic_name[slot] = TGSI_SEMANTIC_PSIZE;
+ gs_output_semantic_index[slot] = 0;
+ break;
+ case GEOM_RESULT_TEX0:
+ case GEOM_RESULT_TEX1:
+ case GEOM_RESULT_TEX2:
+ case GEOM_RESULT_TEX3:
+ case GEOM_RESULT_TEX4:
+ case GEOM_RESULT_TEX5:
+ case GEOM_RESULT_TEX6:
+ case GEOM_RESULT_TEX7:
+ /* fall-through */
+ case GEOM_RESULT_VAR0:
+ /* fall-through */
+ default:
+ assert(slot < Elements(gs_output_semantic_name));
+ /* use default semantic info */
+ gs_output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+ gs_output_semantic_index[slot] = num_generic++;
+ }
+ }
+ }
+
+ assert(gs_output_semantic_name[0] == TGSI_SEMANTIC_POSITION);
+
+ /* find max output slot referenced to compute gs_num_outputs */
+ for (attr = 0; attr < GEOM_RESULT_MAX; attr++) {
+ if (outputMapping[attr] != ~0 && outputMapping[attr] > maxSlot)
+ maxSlot = outputMapping[attr];
+ }
+ gs_num_outputs = maxSlot + 1;
+
+#if 0 /* debug */
+ {
+ GLuint i;
+ printf("outputMapping? %d\n", outputMapping ? 1 : 0);
+ if (outputMapping) {
+ printf("attr -> slot\n");
+ for (i = 0; i < 16; i++) {
+ printf(" %2d %3d\n", i, outputMapping[i]);
+ }
+ }
+ printf("slot sem_name sem_index\n");
+ for (i = 0; i < gs_num_outputs; i++) {
+ printf(" %2d %d %d\n",
+ i,
+ gs_output_semantic_name[i],
+ gs_output_semantic_index[i]);
+ }
+ }
+#endif
+
+ /* free old shader state, if any */
+ if (stgp->tgsi.tokens) {
+ st_free_tokens(stgp->tgsi.tokens);
+ stgp->tgsi.tokens = NULL;
+ }
+
+ ureg_property_gs_input_prim(ureg, stgp->Base.InputType);
+ ureg_property_gs_output_prim(ureg, stgp->Base.OutputType);
+ ureg_property_gs_max_vertices(ureg, stgp->Base.VerticesOut);
+
+ error = st_translate_mesa_program(st->ctx,
+ TGSI_PROCESSOR_GEOMETRY,
+ ureg,
+ &stgp->Base.Base,
+ /* inputs */
+ gs_num_inputs,
+ inputMapping,
+ stgp->input_semantic_name,
+ stgp->input_semantic_index,
+ NULL,
+ /* outputs */
+ gs_num_outputs,
+ outputMapping,
+ gs_output_semantic_name,
+ gs_output_semantic_index,
+ FALSE);
+
+ stgp->num_inputs = gs_num_inputs;
+ stgp->tgsi.tokens = ureg_get_tokens( ureg, NULL );
+ ureg_destroy( ureg );
+
+ /* fill in new variant */
+ gpv->driver_shader = pipe->create_gs_state(pipe, &stgp->tgsi);
+ gpv->key = *key;
+
+ if ((ST_DEBUG & DEBUG_TGSI) && (ST_DEBUG & DEBUG_MESA)) {
+ _mesa_print_program(&stgp->Base.Base);
+ debug_printf("\n");
+ }
+
+ if (ST_DEBUG & DEBUG_TGSI) {
+ tgsi_dump(stgp->tgsi.tokens, 0);
+ debug_printf("\n");
+ }
+
+ return gpv;
+}
+
+
+/**
+ * Get/create geometry program variant.
+ */
+struct st_gp_variant *
+st_get_gp_variant(struct st_context *st,
+ struct st_geometry_program *stgp,
+ const struct st_gp_variant_key *key)
+{
+ struct st_gp_variant *gpv;
+
+ /* Search for existing variant */
+ for (gpv = stgp->variants; gpv; gpv = gpv->next) {
+ if (memcmp(&gpv->key, key, sizeof(*key)) == 0) {
+ break;
+ }
+ }
+
+ if (!gpv) {
+ /* create new */
+ gpv = st_translate_geometry_program(st, stgp, key);
+ if (gpv) {
+ /* insert into list */
+ gpv->next = stgp->variants;
+ stgp->variants = gpv;
+ }
+ }
+
+ return gpv;
+}
+
+
+
+
+/**
+ * Debug- print current shader text
+ */
+void
+st_print_shaders(struct gl_context *ctx)
+{
+ struct gl_shader_program *shProg[3] = {
+ ctx->Shader.CurrentVertexProgram,
+ ctx->Shader.CurrentGeometryProgram,
+ ctx->Shader.CurrentFragmentProgram,
+ };
+ unsigned j;
+
+ for (j = 0; j < 3; j++) {
+ unsigned i;
+
+ if (shProg[j] == NULL)
+ continue;
+
+ for (i = 0; i < shProg[j]->NumShaders; i++) {
+ struct gl_shader *sh;
+
+ switch (shProg[j]->Shaders[i]->Type) {
+ case GL_VERTEX_SHADER:
+ sh = (i != 0) ? NULL : shProg[j]->Shaders[i];
+ break;
+ case GL_GEOMETRY_SHADER_ARB:
+ sh = (i != 1) ? NULL : shProg[j]->Shaders[i];
+ break;
+ case GL_FRAGMENT_SHADER:
+ sh = (i != 2) ? NULL : shProg[j]->Shaders[i];
+ break;
+ default:
+ assert(0);
+ sh = NULL;
+ break;
+ }
+
+ if (sh != NULL) {
+ printf("GLSL shader %u of %u:\n", i, shProg[j]->NumShaders);
+ printf("%s\n", sh->Source);
+ }
+ }
+ }
+}
+
+
+/**
+ * Vert/Geom/Frag programs have per-context variants. Free all the
+ * variants attached to the given program which match the given context.
+ */
+static void
+destroy_program_variants(struct st_context *st, struct gl_program *program)
+{
+ if (!program)
+ return;
+
+ switch (program->Target) {
+ case GL_VERTEX_PROGRAM_ARB:
+ {
+ struct st_vertex_program *stvp = (struct st_vertex_program *) program;
+ struct st_vp_variant *vpv, **prevPtr = &stvp->variants;
+
+ for (vpv = stvp->variants; vpv; ) {
+ struct st_vp_variant *next = vpv->next;
+ if (vpv->key.st == st) {
+ /* unlink from list */
+ *prevPtr = next;
+ /* destroy this variant */
+ delete_vp_variant(st, vpv);
+ }
+ else {
+ prevPtr = &vpv->next;
+ }
+ vpv = next;
+ }
+ }
+ break;
+ case GL_FRAGMENT_PROGRAM_ARB:
+ {
+ struct st_fragment_program *stfp =
+ (struct st_fragment_program *) program;
+ struct st_fp_variant *fpv, **prevPtr = &stfp->variants;
+
+ for (fpv = stfp->variants; fpv; ) {
+ struct st_fp_variant *next = fpv->next;
+ if (fpv->key.st == st) {
+ /* unlink from list */
+ *prevPtr = next;
+ /* destroy this variant */
+ delete_fp_variant(st, fpv);
+ }
+ else {
+ prevPtr = &fpv->next;
+ }
+ fpv = next;
+ }
+ }
+ break;
+ case MESA_GEOMETRY_PROGRAM:
+ {
+ struct st_geometry_program *stgp =
+ (struct st_geometry_program *) program;
+ struct st_gp_variant *gpv, **prevPtr = &stgp->variants;
+
+ for (gpv = stgp->variants; gpv; ) {
+ struct st_gp_variant *next = gpv->next;
+ if (gpv->key.st == st) {
+ /* unlink from list */
+ *prevPtr = next;
+ /* destroy this variant */
+ delete_gp_variant(st, gpv);
+ }
+ else {
+ prevPtr = &gpv->next;
+ }
+ gpv = next;
+ }
+ }
+ break;
+ default:
+ _mesa_problem(NULL, "Unexpected program target in "
+ "destroy_program_variants_cb()");
+ }
+}
+
+
+/**
+ * Callback for _mesa_HashWalk. Free all the shader's program variants
+ * which match the given context.
+ */
+static void
+destroy_shader_program_variants_cb(GLuint key, void *data, void *userData)
+{
+ struct st_context *st = (struct st_context *) userData;
+ struct gl_shader *shader = (struct gl_shader *) data;
+
+ switch (shader->Type) {
+ case GL_SHADER_PROGRAM_MESA:
+ {
+ struct gl_shader_program *shProg = (struct gl_shader_program *) data;
+ GLuint i;
+
+ for (i = 0; i < shProg->NumShaders; i++) {
+ destroy_program_variants(st, shProg->Shaders[i]->Program);
+ }
+
+ destroy_program_variants(st, (struct gl_program *)
+ shProg->VertexProgram);
+ destroy_program_variants(st, (struct gl_program *)
+ shProg->FragmentProgram);
+ destroy_program_variants(st, (struct gl_program *)
+ shProg->GeometryProgram);
+ }
+ break;
+ case GL_VERTEX_SHADER:
+ case GL_FRAGMENT_SHADER:
+ case GL_GEOMETRY_SHADER:
+ {
+ destroy_program_variants(st, shader->Program);
+ }
+ break;
+ default:
+ assert(0);
+ }
+}
+
+
+/**
+ * Callback for _mesa_HashWalk. Free all the program variants which match
+ * the given context.
+ */
+static void
+destroy_program_variants_cb(GLuint key, void *data, void *userData)
+{
+ struct st_context *st = (struct st_context *) userData;
+ struct gl_program *program = (struct gl_program *) data;
+ destroy_program_variants(st, program);
+}
+
+
+/**
+ * Walk over all shaders and programs to delete any variants which
+ * belong to the given context.
+ * This is called during context tear-down.
+ */
+void
+st_destroy_program_variants(struct st_context *st)
+{
+ /* ARB vert/frag program */
+ _mesa_HashWalk(st->ctx->Shared->Programs,
+ destroy_program_variants_cb, st);
+
+ /* GLSL vert/frag/geom shaders */
+ _mesa_HashWalk(st->ctx->Shared->ShaderObjects,
+ destroy_shader_program_variants_cb, st);
+}