/************************************************************************** * * Copyright 2007 VMware, Inc. * 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 VMWARE 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 * Brian Paul */ #include "main/imports.h" #include "main/hash.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_emulate.h" #include "tgsi/tgsi_parse.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 (vpv->draw_shader) draw_delete_vertex_shader( st->draw, vpv->draw_shader ); if (vpv->tgsi.tokens) ureg_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; if (stvp->tgsi.tokens) { tgsi_free_tokens(stvp->tgsi.tokens); stvp->tgsi.tokens = 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; if (stfp->tgsi.tokens) { ureg_free_tokens(stfp->tgsi.tokens); stfp->tgsi.tokens = NULL; } } /** * Delete a basic program variant. Note the caller must unlink * the variant from the linked list. */ static void delete_basic_variant(struct st_context *st, struct st_basic_variant *v, GLenum target) { if (v->driver_shader) { switch (target) { case GL_TESS_CONTROL_PROGRAM_NV: cso_delete_tessctrl_shader(st->cso_context, v->driver_shader); break; case GL_TESS_EVALUATION_PROGRAM_NV: cso_delete_tesseval_shader(st->cso_context, v->driver_shader); break; case GL_GEOMETRY_PROGRAM_NV: cso_delete_geometry_shader(st->cso_context, v->driver_shader); break; default: assert(!"this shouldn't occur"); } } free(v); } /** * Free all basic program variants. */ void st_release_basic_variants(struct st_context *st, GLenum target, struct st_basic_variant **variants, struct pipe_shader_state *tgsi) { struct st_basic_variant *v; for (v = *variants; v; ) { struct st_basic_variant *next = v->next; delete_basic_variant(st, v, target); v = next; } *variants = NULL; if (tgsi->tokens) { ureg_free_tokens(tgsi->tokens); tgsi->tokens = NULL; } } /** * Translate a vertex program. */ bool st_translate_vertex_program(struct st_context *st, struct st_vertex_program *stvp) { struct ureg_program *ureg; enum pipe_error error; unsigned num_outputs = 0; unsigned attr; unsigned input_to_index[VERT_ATTRIB_MAX] = {0}; unsigned output_slot_to_attr[VARYING_SLOT_MAX] = {0}; ubyte output_semantic_name[VARYING_SLOT_MAX] = {0}; ubyte output_semantic_index[VARYING_SLOT_MAX] = {0}; stvp->num_inputs = 0; if (stvp->Base.IsPositionInvariant) _mesa_insert_mvp_code(st->ctx, &stvp->Base); /* * 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 & BITFIELD64_BIT(attr)) != 0) { input_to_index[attr] = stvp->num_inputs; stvp->index_to_input[stvp->num_inputs] = attr; stvp->num_inputs++; if ((stvp->Base.Base.DoubleInputsRead & BITFIELD64_BIT(attr)) != 0) { /* add placeholder for second part of a double attribute */ stvp->index_to_input[stvp->num_inputs] = ST_DOUBLE_ATTRIB_PLACEHOLDER; stvp->num_inputs++; } } } /* bit of a hack, presetup potentially unused edgeflag input */ 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 < VARYING_SLOT_MAX; attr++) { if ((stvp->Base.Base.OutputsWritten & BITFIELD64_BIT(attr)) == 0) { stvp->result_to_output[attr] = ~0; } else { unsigned slot = num_outputs++; stvp->result_to_output[attr] = slot; output_slot_to_attr[slot] = attr; switch (attr) { case VARYING_SLOT_POS: output_semantic_name[slot] = TGSI_SEMANTIC_POSITION; output_semantic_index[slot] = 0; break; case VARYING_SLOT_COL0: output_semantic_name[slot] = TGSI_SEMANTIC_COLOR; output_semantic_index[slot] = 0; break; case VARYING_SLOT_COL1: output_semantic_name[slot] = TGSI_SEMANTIC_COLOR; output_semantic_index[slot] = 1; break; case VARYING_SLOT_BFC0: output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR; output_semantic_index[slot] = 0; break; case VARYING_SLOT_BFC1: output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR; output_semantic_index[slot] = 1; break; case VARYING_SLOT_FOGC: output_semantic_name[slot] = TGSI_SEMANTIC_FOG; output_semantic_index[slot] = 0; break; case VARYING_SLOT_PSIZ: output_semantic_name[slot] = TGSI_SEMANTIC_PSIZE; output_semantic_index[slot] = 0; break; case VARYING_SLOT_CLIP_DIST0: output_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; output_semantic_index[slot] = 0; break; case VARYING_SLOT_CLIP_DIST1: output_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; output_semantic_index[slot] = 1; break; case VARYING_SLOT_EDGE: assert(0); break; case VARYING_SLOT_CLIP_VERTEX: output_semantic_name[slot] = TGSI_SEMANTIC_CLIPVERTEX; output_semantic_index[slot] = 0; break; case VARYING_SLOT_LAYER: output_semantic_name[slot] = TGSI_SEMANTIC_LAYER; output_semantic_index[slot] = 0; break; case VARYING_SLOT_VIEWPORT: output_semantic_name[slot] = TGSI_SEMANTIC_VIEWPORT_INDEX; output_semantic_index[slot] = 0; break; case VARYING_SLOT_TEX0: case VARYING_SLOT_TEX1: case VARYING_SLOT_TEX2: case VARYING_SLOT_TEX3: case VARYING_SLOT_TEX4: case VARYING_SLOT_TEX5: case VARYING_SLOT_TEX6: case VARYING_SLOT_TEX7: if (st->needs_texcoord_semantic) { output_semantic_name[slot] = TGSI_SEMANTIC_TEXCOORD; output_semantic_index[slot] = attr - VARYING_SLOT_TEX0; break; } /* fall through */ case VARYING_SLOT_VAR0: default: assert(attr >= VARYING_SLOT_VAR0 || (attr >= VARYING_SLOT_TEX0 && attr <= VARYING_SLOT_TEX7)); output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; output_semantic_index[slot] = st_get_generic_varying_index(st, attr); break; } } } /* similar hack to above, presetup potentially unused edgeflag output */ stvp->result_to_output[VARYING_SLOT_EDGE] = num_outputs; output_semantic_name[num_outputs] = TGSI_SEMANTIC_EDGEFLAG; output_semantic_index[num_outputs] = 0; if (!stvp->glsl_to_tgsi) _mesa_remove_output_reads(&stvp->Base.Base, PROGRAM_OUTPUT); ureg = ureg_create_with_screen(TGSI_PROCESSOR_VERTEX, st->pipe->screen); if (ureg == NULL) return false; if (stvp->Base.Base.ClipDistanceArraySize) ureg_property(ureg, TGSI_PROPERTY_NUM_CLIPDIST_ENABLED, stvp->Base.Base.ClipDistanceArraySize); if (ST_DEBUG & DEBUG_MESA) { _mesa_print_program(&stvp->Base.Base); _mesa_print_program_parameters(st->ctx, &stvp->Base.Base); debug_printf("\n"); } if (stvp->glsl_to_tgsi) { error = st_translate_program(st->ctx, TGSI_PROCESSOR_VERTEX, ureg, stvp->glsl_to_tgsi, &stvp->Base.Base, /* inputs */ stvp->num_inputs, input_to_index, NULL, /* inputSlotToAttr */ NULL, /* input semantic name */ NULL, /* input semantic index */ NULL, /* interp mode */ NULL, /* interp location */ /* outputs */ num_outputs, stvp->result_to_output, output_slot_to_attr, output_semantic_name, output_semantic_index); st_translate_stream_output_info(stvp->glsl_to_tgsi, stvp->result_to_output, &stvp->tgsi.stream_output); free_glsl_to_tgsi_visitor(stvp->glsl_to_tgsi); stvp->glsl_to_tgsi = NULL; } else error = st_translate_mesa_program(st->ctx, TGSI_PROCESSOR_VERTEX, ureg, &stvp->Base.Base, /* inputs */ stvp->num_inputs, input_to_index, NULL, /* input semantic name */ NULL, /* input semantic index */ NULL, /* outputs */ num_outputs, stvp->result_to_output, output_semantic_name, output_semantic_index); if (error) { debug_printf("%s: failed to translate Mesa program:\n", __func__); _mesa_print_program(&stvp->Base.Base); debug_assert(0); return false; } stvp->tgsi.tokens = ureg_get_tokens(ureg, NULL); ureg_destroy(ureg); return stvp->tgsi.tokens != NULL; } static struct st_vp_variant * st_create_vp_variant(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; vpv->key = *key; vpv->tgsi.tokens = tgsi_dup_tokens(stvp->tgsi.tokens); vpv->tgsi.stream_output = stvp->tgsi.stream_output; vpv->num_inputs = stvp->num_inputs; /* Emulate features. */ if (key->clamp_color || key->passthrough_edgeflags) { const struct tgsi_token *tokens; unsigned flags = (key->clamp_color ? TGSI_EMU_CLAMP_COLOR_OUTPUTS : 0) | (key->passthrough_edgeflags ? TGSI_EMU_PASSTHROUGH_EDGEFLAG : 0); tokens = tgsi_emulate(vpv->tgsi.tokens, flags); if (tokens) { tgsi_free_tokens(vpv->tgsi.tokens); vpv->tgsi.tokens = tokens; if (key->passthrough_edgeflags) vpv->num_inputs++; } else fprintf(stderr, "mesa: cannot emulate deprecated features\n"); } if (ST_DEBUG & DEBUG_TGSI) { tgsi_dump(vpv->tgsi.tokens, 0); debug_printf("\n"); } vpv->driver_shader = pipe->create_vs_state(pipe, &vpv->tgsi); return vpv; } /** * 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_create_vp_variant(st, stvp, key); if (vpv) { /* insert into list */ vpv->next = stvp->variants; stvp->variants = vpv; } } return vpv; } static unsigned st_translate_interp(enum glsl_interp_qualifier glsl_qual, bool is_color) { switch (glsl_qual) { case INTERP_QUALIFIER_NONE: if (is_color) return TGSI_INTERPOLATE_COLOR; return TGSI_INTERPOLATE_PERSPECTIVE; case INTERP_QUALIFIER_SMOOTH: return TGSI_INTERPOLATE_PERSPECTIVE; case INTERP_QUALIFIER_FLAT: return TGSI_INTERPOLATE_CONSTANT; case INTERP_QUALIFIER_NOPERSPECTIVE: return TGSI_INTERPOLATE_LINEAR; default: assert(0 && "unexpected interp mode in st_translate_interp()"); return TGSI_INTERPOLATE_PERSPECTIVE; } } /** * Translate a Mesa fragment shader into a TGSI shader. */ bool st_translate_fragment_program(struct st_context *st, struct st_fragment_program *stfp) { GLuint outputMapping[FRAG_RESULT_MAX]; GLuint inputMapping[VARYING_SLOT_MAX]; GLuint inputSlotToAttr[VARYING_SLOT_MAX]; GLuint interpMode[PIPE_MAX_SHADER_INPUTS]; /* XXX size? */ GLuint interpLocation[PIPE_MAX_SHADER_INPUTS]; GLuint attr; GLbitfield64 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; memset(inputSlotToAttr, ~0, sizeof(inputSlotToAttr)); if (!stfp->glsl_to_tgsi) { _mesa_remove_output_reads(&stfp->Base.Base, PROGRAM_OUTPUT); if (st->ctx->Const.GLSLFragCoordIsSysVal) _mesa_program_fragment_position_to_sysval(&stfp->Base.Base); } /* * Convert Mesa program inputs to TGSI input register semantics. */ inputsRead = stfp->Base.Base.InputsRead; for (attr = 0; attr < VARYING_SLOT_MAX; attr++) { if ((inputsRead & BITFIELD64_BIT(attr)) != 0) { const GLuint slot = fs_num_inputs++; inputMapping[attr] = slot; inputSlotToAttr[slot] = attr; if (stfp->Base.IsCentroid & BITFIELD64_BIT(attr)) interpLocation[slot] = TGSI_INTERPOLATE_LOC_CENTROID; else if (stfp->Base.IsSample & BITFIELD64_BIT(attr)) interpLocation[slot] = TGSI_INTERPOLATE_LOC_SAMPLE; else interpLocation[slot] = TGSI_INTERPOLATE_LOC_CENTER; if (stfp->Base.Base.SystemValuesRead & (SYSTEM_BIT_SAMPLE_ID | SYSTEM_BIT_SAMPLE_POS)) interpLocation[slot] = TGSI_INTERPOLATE_LOC_SAMPLE; switch (attr) { case VARYING_SLOT_POS: input_semantic_name[slot] = TGSI_SEMANTIC_POSITION; input_semantic_index[slot] = 0; interpMode[slot] = TGSI_INTERPOLATE_LINEAR; break; case VARYING_SLOT_COL0: input_semantic_name[slot] = TGSI_SEMANTIC_COLOR; input_semantic_index[slot] = 0; interpMode[slot] = st_translate_interp(stfp->Base.InterpQualifier[attr], TRUE); break; case VARYING_SLOT_COL1: input_semantic_name[slot] = TGSI_SEMANTIC_COLOR; input_semantic_index[slot] = 1; interpMode[slot] = st_translate_interp(stfp->Base.InterpQualifier[attr], TRUE); break; case VARYING_SLOT_FOGC: input_semantic_name[slot] = TGSI_SEMANTIC_FOG; input_semantic_index[slot] = 0; interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE; break; case VARYING_SLOT_FACE: input_semantic_name[slot] = TGSI_SEMANTIC_FACE; input_semantic_index[slot] = 0; interpMode[slot] = TGSI_INTERPOLATE_CONSTANT; break; case VARYING_SLOT_PRIMITIVE_ID: input_semantic_name[slot] = TGSI_SEMANTIC_PRIMID; input_semantic_index[slot] = 0; interpMode[slot] = TGSI_INTERPOLATE_CONSTANT; break; case VARYING_SLOT_LAYER: input_semantic_name[slot] = TGSI_SEMANTIC_LAYER; input_semantic_index[slot] = 0; interpMode[slot] = TGSI_INTERPOLATE_CONSTANT; break; case VARYING_SLOT_VIEWPORT: input_semantic_name[slot] = TGSI_SEMANTIC_VIEWPORT_INDEX; input_semantic_index[slot] = 0; interpMode[slot] = TGSI_INTERPOLATE_CONSTANT; break; case VARYING_SLOT_CLIP_DIST0: input_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; input_semantic_index[slot] = 0; interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE; break; case VARYING_SLOT_CLIP_DIST1: input_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; input_semantic_index[slot] = 1; interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE; break; /* In most cases, there is nothing special about these * inputs, so adopt a convention to use the generic * semantic name and the mesa VARYING_SLOT_ 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). * * However, some drivers may need us to identify the PNTC and TEXi * varyings if, for example, their capability to replace them with * sprite coordinates is limited. */ case VARYING_SLOT_PNTC: if (st->needs_texcoord_semantic) { input_semantic_name[slot] = TGSI_SEMANTIC_PCOORD; input_semantic_index[slot] = 0; interpMode[slot] = TGSI_INTERPOLATE_LINEAR; break; } /* fall through */ case VARYING_SLOT_TEX0: case VARYING_SLOT_TEX1: case VARYING_SLOT_TEX2: case VARYING_SLOT_TEX3: case VARYING_SLOT_TEX4: case VARYING_SLOT_TEX5: case VARYING_SLOT_TEX6: case VARYING_SLOT_TEX7: if (st->needs_texcoord_semantic) { input_semantic_name[slot] = TGSI_SEMANTIC_TEXCOORD; input_semantic_index[slot] = attr - VARYING_SLOT_TEX0; interpMode[slot] = st_translate_interp(stfp->Base.InterpQualifier[attr], FALSE); break; } /* fall through */ case VARYING_SLOT_VAR0: default: /* Semantic indices should be zero-based because drivers may choose * to assign a fixed slot determined by that index. * This is useful because ARB_separate_shader_objects uses location * qualifiers for linkage, and if the semantic index corresponds to * these locations, linkage passes in the driver become unecessary. * * If needs_texcoord_semantic is true, no semantic indices will be * consumed for the TEXi varyings, and we can base the locations of * the user varyings on VAR0. Otherwise, we use TEX0 as base index. */ assert(attr >= VARYING_SLOT_VAR0 || attr == VARYING_SLOT_PNTC || (attr >= VARYING_SLOT_TEX0 && attr <= VARYING_SLOT_TEX7)); input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; input_semantic_index[slot] = st_get_generic_varying_index(st, attr); if (attr == VARYING_SLOT_PNTC) interpMode[slot] = TGSI_INTERPOLATE_LINEAR; else interpMode[slot] = st_translate_interp(stfp->Base.InterpQualifier[attr], FALSE); 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); } if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_SAMPLE_MASK)) { fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_SAMPLEMASK; fs_output_semantic_index[fs_num_outputs] = 0; outputMapping[FRAG_RESULT_SAMPLE_MASK] = fs_num_outputs; fs_num_outputs++; outputsWritten &= ~(1 << FRAG_RESULT_SAMPLE_MASK); } /* handle remaining 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: case FRAG_RESULT_SAMPLE_MASK: /* 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_with_screen(TGSI_PROCESSOR_FRAGMENT, st->pipe->screen); if (ureg == NULL) return false; 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(ureg, TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS, 1); if (stfp->Base.FragDepthLayout != FRAG_DEPTH_LAYOUT_NONE) { switch (stfp->Base.FragDepthLayout) { case FRAG_DEPTH_LAYOUT_ANY: ureg_property(ureg, TGSI_PROPERTY_FS_DEPTH_LAYOUT, TGSI_FS_DEPTH_LAYOUT_ANY); break; case FRAG_DEPTH_LAYOUT_GREATER: ureg_property(ureg, TGSI_PROPERTY_FS_DEPTH_LAYOUT, TGSI_FS_DEPTH_LAYOUT_GREATER); break; case FRAG_DEPTH_LAYOUT_LESS: ureg_property(ureg, TGSI_PROPERTY_FS_DEPTH_LAYOUT, TGSI_FS_DEPTH_LAYOUT_LESS); break; case FRAG_DEPTH_LAYOUT_UNCHANGED: ureg_property(ureg, TGSI_PROPERTY_FS_DEPTH_LAYOUT, TGSI_FS_DEPTH_LAYOUT_UNCHANGED); break; default: assert(0); } } if (stfp->glsl_to_tgsi) { st_translate_program(st->ctx, TGSI_PROCESSOR_FRAGMENT, ureg, stfp->glsl_to_tgsi, &stfp->Base.Base, /* inputs */ fs_num_inputs, inputMapping, inputSlotToAttr, input_semantic_name, input_semantic_index, interpMode, interpLocation, /* outputs */ fs_num_outputs, outputMapping, NULL, fs_output_semantic_name, fs_output_semantic_index); free_glsl_to_tgsi_visitor(stfp->glsl_to_tgsi); stfp->glsl_to_tgsi = NULL; } else 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); stfp->tgsi.tokens = ureg_get_tokens(ureg, NULL); ureg_destroy(ureg); return stfp->tgsi.tokens != NULL; } static struct st_fp_variant * st_create_fp_variant(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); struct pipe_shader_state tgsi = {0}; if (!variant) return NULL; tgsi.tokens = stfp->tgsi.tokens; assert(!(key->bitmap && key->drawpixels)); /* Emulate features. */ if (key->clamp_color || key->persample_shading) { const struct tgsi_token *tokens; unsigned flags = (key->clamp_color ? TGSI_EMU_CLAMP_COLOR_OUTPUTS : 0) | (key->persample_shading ? TGSI_EMU_FORCE_PERSAMPLE_INTERP : 0); tokens = tgsi_emulate(tgsi.tokens, flags); if (tokens) tgsi.tokens = tokens; else fprintf(stderr, "mesa: cannot emulate deprecated features\n"); } /* glBitmap */ if (key->bitmap) { const struct tgsi_token *tokens; variant->bitmap_sampler = ffs(~stfp->Base.Base.SamplersUsed) - 1; tokens = st_get_bitmap_shader(tgsi.tokens, variant->bitmap_sampler, st->needs_texcoord_semantic, st->bitmap.tex_format == PIPE_FORMAT_L8_UNORM); if (tokens) { if (tgsi.tokens != stfp->tgsi.tokens) tgsi_free_tokens(tgsi.tokens); tgsi.tokens = tokens; } else fprintf(stderr, "mesa: cannot create a shader for glBitmap\n"); } /* glDrawPixels (color only) */ if (key->drawpixels) { const struct tgsi_token *tokens; unsigned scale_const = 0, bias_const = 0, texcoord_const = 0; struct gl_program_parameter_list *params = stfp->Base.Base.Parameters; /* Find the first unused slot. */ variant->drawpix_sampler = ffs(~stfp->Base.Base.SamplersUsed) - 1; if (key->pixelMaps) { unsigned samplers_used = stfp->Base.Base.SamplersUsed | (1 << variant->drawpix_sampler); variant->pixelmap_sampler = ffs(~samplers_used) - 1; } if (key->scaleAndBias) { static const gl_state_index scale_state[STATE_LENGTH] = { STATE_INTERNAL, STATE_PT_SCALE }; static const gl_state_index bias_state[STATE_LENGTH] = { STATE_INTERNAL, STATE_PT_BIAS }; scale_const = _mesa_add_state_reference(params, scale_state); bias_const = _mesa_add_state_reference(params, bias_state); } { static const gl_state_index state[STATE_LENGTH] = { STATE_INTERNAL, STATE_CURRENT_ATTRIB, VERT_ATTRIB_TEX0 }; texcoord_const = _mesa_add_state_reference(params, state); } tokens = st_get_drawpix_shader(tgsi.tokens, st->needs_texcoord_semantic, key->scaleAndBias, scale_const, bias_const, key->pixelMaps, variant->drawpix_sampler, variant->pixelmap_sampler, texcoord_const); if (tokens) { if (tgsi.tokens != stfp->tgsi.tokens) tgsi_free_tokens(tgsi.tokens); tgsi.tokens = tokens; } else fprintf(stderr, "mesa: cannot create a shader for glDrawPixels\n"); } if (ST_DEBUG & DEBUG_TGSI) { tgsi_dump(tgsi.tokens, 0); debug_printf("\n"); } /* fill in variant */ variant->driver_shader = pipe->create_fs_state(pipe, &tgsi); variant->key = *key; if (tgsi.tokens != stfp->tgsi.tokens) tgsi_free_tokens(tgsi.tokens); 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_create_fp_variant(st, stfp, key); if (fpv) { /* insert into list */ fpv->next = stfp->variants; stfp->variants = fpv; } } return fpv; } /** * Translate a program. This is common code for geometry and tessellation * shaders. */ static void st_translate_program_common(struct st_context *st, struct gl_program *prog, struct glsl_to_tgsi_visitor *glsl_to_tgsi, struct ureg_program *ureg, unsigned tgsi_processor, struct pipe_shader_state *out_state) { GLuint inputSlotToAttr[VARYING_SLOT_TESS_MAX]; GLuint inputMapping[VARYING_SLOT_TESS_MAX]; GLuint outputSlotToAttr[VARYING_SLOT_TESS_MAX]; GLuint outputMapping[VARYING_SLOT_TESS_MAX]; GLuint attr; ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS]; ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS]; uint num_inputs = 0; ubyte output_semantic_name[PIPE_MAX_SHADER_OUTPUTS]; ubyte output_semantic_index[PIPE_MAX_SHADER_OUTPUTS]; uint num_outputs = 0; GLint i; memset(inputSlotToAttr, 0, sizeof(inputSlotToAttr)); memset(inputMapping, 0, sizeof(inputMapping)); memset(outputSlotToAttr, 0, sizeof(outputSlotToAttr)); memset(outputMapping, 0, sizeof(outputMapping)); memset(out_state, 0, sizeof(*out_state)); if (prog->ClipDistanceArraySize) ureg_property(ureg, TGSI_PROPERTY_NUM_CLIPDIST_ENABLED, prog->ClipDistanceArraySize); /* * Convert Mesa program inputs to TGSI input register semantics. */ for (attr = 0; attr < VARYING_SLOT_MAX; attr++) { if ((prog->InputsRead & BITFIELD64_BIT(attr)) != 0) { const GLuint slot = num_inputs++; inputMapping[attr] = slot; inputSlotToAttr[slot] = attr; switch (attr) { case VARYING_SLOT_PRIMITIVE_ID: assert(tgsi_processor == TGSI_PROCESSOR_GEOMETRY); input_semantic_name[slot] = TGSI_SEMANTIC_PRIMID; input_semantic_index[slot] = 0; break; case VARYING_SLOT_POS: input_semantic_name[slot] = TGSI_SEMANTIC_POSITION; input_semantic_index[slot] = 0; break; case VARYING_SLOT_COL0: input_semantic_name[slot] = TGSI_SEMANTIC_COLOR; input_semantic_index[slot] = 0; break; case VARYING_SLOT_COL1: input_semantic_name[slot] = TGSI_SEMANTIC_COLOR; input_semantic_index[slot] = 1; break; case VARYING_SLOT_FOGC: input_semantic_name[slot] = TGSI_SEMANTIC_FOG; input_semantic_index[slot] = 0; break; case VARYING_SLOT_CLIP_VERTEX: input_semantic_name[slot] = TGSI_SEMANTIC_CLIPVERTEX; input_semantic_index[slot] = 0; break; case VARYING_SLOT_CLIP_DIST0: input_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; input_semantic_index[slot] = 0; break; case VARYING_SLOT_CLIP_DIST1: input_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; input_semantic_index[slot] = 1; break; case VARYING_SLOT_PSIZ: input_semantic_name[slot] = TGSI_SEMANTIC_PSIZE; input_semantic_index[slot] = 0; break; case VARYING_SLOT_TEX0: case VARYING_SLOT_TEX1: case VARYING_SLOT_TEX2: case VARYING_SLOT_TEX3: case VARYING_SLOT_TEX4: case VARYING_SLOT_TEX5: case VARYING_SLOT_TEX6: case VARYING_SLOT_TEX7: if (st->needs_texcoord_semantic) { input_semantic_name[slot] = TGSI_SEMANTIC_TEXCOORD; input_semantic_index[slot] = attr - VARYING_SLOT_TEX0; break; } /* fall through */ case VARYING_SLOT_VAR0: default: assert(attr >= VARYING_SLOT_VAR0 || (attr >= VARYING_SLOT_TEX0 && attr <= VARYING_SLOT_TEX7)); input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; input_semantic_index[slot] = st_get_generic_varying_index(st, attr); break; } } } /* Also add patch inputs. */ for (attr = 0; attr < 32; attr++) { if (prog->PatchInputsRead & (1 << attr)) { GLuint slot = num_inputs++; GLuint patch_attr = VARYING_SLOT_PATCH0 + attr; inputMapping[patch_attr] = slot; inputSlotToAttr[slot] = patch_attr; input_semantic_name[slot] = TGSI_SEMANTIC_PATCH; input_semantic_index[slot] = attr; } } /* initialize output semantics to defaults */ for (i = 0; i < PIPE_MAX_SHADER_OUTPUTS; i++) { output_semantic_name[i] = TGSI_SEMANTIC_GENERIC; output_semantic_index[i] = 0; } /* * Determine number of outputs, the (default) output register * mapping and the semantic information for each output. */ for (attr = 0; attr < VARYING_SLOT_MAX; attr++) { if (prog->OutputsWritten & BITFIELD64_BIT(attr)) { GLuint slot = num_outputs++; outputMapping[attr] = slot; outputSlotToAttr[slot] = attr; switch (attr) { case VARYING_SLOT_POS: assert(slot == 0); output_semantic_name[slot] = TGSI_SEMANTIC_POSITION; output_semantic_index[slot] = 0; break; case VARYING_SLOT_COL0: output_semantic_name[slot] = TGSI_SEMANTIC_COLOR; output_semantic_index[slot] = 0; break; case VARYING_SLOT_COL1: output_semantic_name[slot] = TGSI_SEMANTIC_COLOR; output_semantic_index[slot] = 1; break; case VARYING_SLOT_BFC0: output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR; output_semantic_index[slot] = 0; break; case VARYING_SLOT_BFC1: output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR; output_semantic_index[slot] = 1; break; case VARYING_SLOT_FOGC: output_semantic_name[slot] = TGSI_SEMANTIC_FOG; output_semantic_index[slot] = 0; break; case VARYING_SLOT_PSIZ: output_semantic_name[slot] = TGSI_SEMANTIC_PSIZE; output_semantic_index[slot] = 0; break; case VARYING_SLOT_CLIP_VERTEX: output_semantic_name[slot] = TGSI_SEMANTIC_CLIPVERTEX; output_semantic_index[slot] = 0; break; case VARYING_SLOT_CLIP_DIST0: output_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; output_semantic_index[slot] = 0; break; case VARYING_SLOT_CLIP_DIST1: output_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; output_semantic_index[slot] = 1; break; case VARYING_SLOT_LAYER: output_semantic_name[slot] = TGSI_SEMANTIC_LAYER; output_semantic_index[slot] = 0; break; case VARYING_SLOT_PRIMITIVE_ID: output_semantic_name[slot] = TGSI_SEMANTIC_PRIMID; output_semantic_index[slot] = 0; break; case VARYING_SLOT_VIEWPORT: output_semantic_name[slot] = TGSI_SEMANTIC_VIEWPORT_INDEX; output_semantic_index[slot] = 0; break; case VARYING_SLOT_TESS_LEVEL_OUTER: output_semantic_name[slot] = TGSI_SEMANTIC_TESSOUTER; output_semantic_index[slot] = 0; break; case VARYING_SLOT_TESS_LEVEL_INNER: output_semantic_name[slot] = TGSI_SEMANTIC_TESSINNER; output_semantic_index[slot] = 0; break; case VARYING_SLOT_TEX0: case VARYING_SLOT_TEX1: case VARYING_SLOT_TEX2: case VARYING_SLOT_TEX3: case VARYING_SLOT_TEX4: case VARYING_SLOT_TEX5: case VARYING_SLOT_TEX6: case VARYING_SLOT_TEX7: if (st->needs_texcoord_semantic) { output_semantic_name[slot] = TGSI_SEMANTIC_TEXCOORD; output_semantic_index[slot] = attr - VARYING_SLOT_TEX0; break; } /* fall through */ case VARYING_SLOT_VAR0: default: assert(slot < ARRAY_SIZE(output_semantic_name)); assert(attr >= VARYING_SLOT_VAR0 || (attr >= VARYING_SLOT_TEX0 && attr <= VARYING_SLOT_TEX7)); output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; output_semantic_index[slot] = st_get_generic_varying_index(st, attr); break; } } } /* Also add patch outputs. */ for (attr = 0; attr < 32; attr++) { if (prog->PatchOutputsWritten & (1 << attr)) { GLuint slot = num_outputs++; GLuint patch_attr = VARYING_SLOT_PATCH0 + attr; outputMapping[patch_attr] = slot; outputSlotToAttr[slot] = patch_attr; output_semantic_name[slot] = TGSI_SEMANTIC_PATCH; output_semantic_index[slot] = attr; } } st_translate_program(st->ctx, tgsi_processor, ureg, glsl_to_tgsi, prog, /* inputs */ num_inputs, inputMapping, inputSlotToAttr, input_semantic_name, input_semantic_index, NULL, NULL, /* outputs */ num_outputs, outputMapping, outputSlotToAttr, output_semantic_name, output_semantic_index); out_state->tokens = ureg_get_tokens(ureg, NULL); ureg_destroy(ureg); st_translate_stream_output_info(glsl_to_tgsi, outputMapping, &out_state->stream_output); if ((ST_DEBUG & DEBUG_TGSI) && (ST_DEBUG & DEBUG_MESA)) { _mesa_print_program(prog); debug_printf("\n"); } if (ST_DEBUG & DEBUG_TGSI) { tgsi_dump(out_state->tokens, 0); debug_printf("\n"); } } /** * Translate a geometry program to create a new variant. */ bool st_translate_geometry_program(struct st_context *st, struct st_geometry_program *stgp) { struct ureg_program *ureg; ureg = ureg_create_with_screen(TGSI_PROCESSOR_GEOMETRY, st->pipe->screen); if (ureg == NULL) return false; ureg_property(ureg, TGSI_PROPERTY_GS_INPUT_PRIM, stgp->Base.InputType); ureg_property(ureg, TGSI_PROPERTY_GS_OUTPUT_PRIM, stgp->Base.OutputType); ureg_property(ureg, TGSI_PROPERTY_GS_MAX_OUTPUT_VERTICES, stgp->Base.VerticesOut); ureg_property(ureg, TGSI_PROPERTY_GS_INVOCATIONS, stgp->Base.Invocations); st_translate_program_common(st, &stgp->Base.Base, stgp->glsl_to_tgsi, ureg, TGSI_PROCESSOR_GEOMETRY, &stgp->tgsi); free_glsl_to_tgsi_visitor(stgp->glsl_to_tgsi); stgp->glsl_to_tgsi = NULL; return true; } /** * Get/create a basic program variant. */ struct st_basic_variant * st_get_basic_variant(struct st_context *st, unsigned pipe_shader, struct pipe_shader_state *tgsi, struct st_basic_variant **variants) { struct pipe_context *pipe = st->pipe; struct st_basic_variant *v; struct st_basic_variant_key key; memset(&key, 0, sizeof(key)); key.st = st->has_shareable_shaders ? NULL : st; /* Search for existing variant */ for (v = *variants; v; v = v->next) { if (memcmp(&v->key, &key, sizeof(key)) == 0) { break; } } if (!v) { /* create new */ v = CALLOC_STRUCT(st_basic_variant); if (v) { /* fill in new variant */ switch (pipe_shader) { case PIPE_SHADER_TESS_CTRL: v->driver_shader = pipe->create_tcs_state(pipe, tgsi); break; case PIPE_SHADER_TESS_EVAL: v->driver_shader = pipe->create_tes_state(pipe, tgsi); break; case PIPE_SHADER_GEOMETRY: v->driver_shader = pipe->create_gs_state(pipe, tgsi); break; default: assert(!"unhandled shader type"); free(v); return NULL; } v->key = key; /* insert into list */ v->next = *variants; *variants = v; } } return v; } /** * Translate a tessellation control program to create a new variant. */ bool st_translate_tessctrl_program(struct st_context *st, struct st_tessctrl_program *sttcp) { struct ureg_program *ureg; ureg = ureg_create_with_screen(TGSI_PROCESSOR_TESS_CTRL, st->pipe->screen); if (ureg == NULL) return false; ureg_property(ureg, TGSI_PROPERTY_TCS_VERTICES_OUT, sttcp->Base.VerticesOut); st_translate_program_common(st, &sttcp->Base.Base, sttcp->glsl_to_tgsi, ureg, TGSI_PROCESSOR_TESS_CTRL, &sttcp->tgsi); free_glsl_to_tgsi_visitor(sttcp->glsl_to_tgsi); sttcp->glsl_to_tgsi = NULL; return true; } /** * Translate a tessellation evaluation program to create a new variant. */ bool st_translate_tesseval_program(struct st_context *st, struct st_tesseval_program *sttep) { struct ureg_program *ureg; ureg = ureg_create_with_screen(TGSI_PROCESSOR_TESS_EVAL, st->pipe->screen); if (ureg == NULL) return false; if (sttep->Base.PrimitiveMode == GL_ISOLINES) ureg_property(ureg, TGSI_PROPERTY_TES_PRIM_MODE, GL_LINES); else ureg_property(ureg, TGSI_PROPERTY_TES_PRIM_MODE, sttep->Base.PrimitiveMode); switch (sttep->Base.Spacing) { case GL_EQUAL: ureg_property(ureg, TGSI_PROPERTY_TES_SPACING, PIPE_TESS_SPACING_EQUAL); break; case GL_FRACTIONAL_EVEN: ureg_property(ureg, TGSI_PROPERTY_TES_SPACING, PIPE_TESS_SPACING_FRACTIONAL_EVEN); break; case GL_FRACTIONAL_ODD: ureg_property(ureg, TGSI_PROPERTY_TES_SPACING, PIPE_TESS_SPACING_FRACTIONAL_ODD); break; default: assert(0); } ureg_property(ureg, TGSI_PROPERTY_TES_VERTEX_ORDER_CW, sttep->Base.VertexOrder == GL_CW); ureg_property(ureg, TGSI_PROPERTY_TES_POINT_MODE, sttep->Base.PointMode); st_translate_program_common(st, &sttep->Base.Base, sttep->glsl_to_tgsi, ureg, TGSI_PROCESSOR_TESS_EVAL, &sttep->tgsi); free_glsl_to_tgsi_visitor(sttep->glsl_to_tgsi); sttep->glsl_to_tgsi = NULL; return true; } /** * 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 *target) { if (!target || target == &_mesa_DummyProgram) return; switch (target->Target) { case GL_VERTEX_PROGRAM_ARB: { struct st_vertex_program *stvp = (struct st_vertex_program *) target; 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 *) target; 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 GL_GEOMETRY_PROGRAM_NV: case GL_TESS_CONTROL_PROGRAM_NV: case GL_TESS_EVALUATION_PROGRAM_NV: { struct st_geometry_program *gp = (struct st_geometry_program*)target; struct st_tessctrl_program *tcp = (struct st_tessctrl_program*)target; struct st_tesseval_program *tep = (struct st_tesseval_program*)target; struct st_basic_variant **variants = target->Target == GL_GEOMETRY_PROGRAM_NV ? &gp->variants : target->Target == GL_TESS_CONTROL_PROGRAM_NV ? &tcp->variants : target->Target == GL_TESS_EVALUATION_PROGRAM_NV ? &tep->variants : NULL; struct st_basic_variant *v, **prevPtr = variants; for (v = *variants; v; ) { struct st_basic_variant *next = v->next; if (v->key.st == st) { /* unlink from list */ *prevPtr = next; /* destroy this variant */ delete_basic_variant(st, v, target->Target); } else { prevPtr = &v->next; } v = next; } } break; default: _mesa_problem(NULL, "Unexpected program target 0x%x in " "destroy_program_variants_cb()", target->Target); } } /** * 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); } for (i = 0; i < ARRAY_SIZE(shProg->_LinkedShaders); i++) { if (shProg->_LinkedShaders[i]) destroy_program_variants(st, shProg->_LinkedShaders[i]->Program); } } break; case GL_VERTEX_SHADER: case GL_FRAGMENT_SHADER: case GL_GEOMETRY_SHADER: case GL_TESS_CONTROL_SHADER: case GL_TESS_EVALUATION_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) { /* If shaders can be shared with other contexts, the last context will * call DeleteProgram on all shaders, releasing everything. */ if (st->has_shareable_shaders) return; /* 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); } /** * For debugging, print/dump the current vertex program. */ void st_print_current_vertex_program(void) { GET_CURRENT_CONTEXT(ctx); if (ctx->VertexProgram._Current) { struct st_vertex_program *stvp = (struct st_vertex_program *) ctx->VertexProgram._Current; struct st_vp_variant *stv; debug_printf("Vertex program %u\n", stvp->Base.Base.Id); for (stv = stvp->variants; stv; stv = stv->next) { debug_printf("variant %p\n", stv); tgsi_dump(stv->tgsi.tokens, 0); } } } /** * Compile one shader variant. */ void st_precompile_shader_variant(struct st_context *st, struct gl_program *prog) { switch (prog->Target) { case GL_VERTEX_PROGRAM_ARB: { struct st_vertex_program *p = (struct st_vertex_program *)prog; struct st_vp_variant_key key; memset(&key, 0, sizeof(key)); key.st = st->has_shareable_shaders ? NULL : st; st_get_vp_variant(st, p, &key); break; } case GL_TESS_CONTROL_PROGRAM_NV: { struct st_tessctrl_program *p = (struct st_tessctrl_program *)prog; st_get_basic_variant(st, PIPE_SHADER_TESS_CTRL, &p->tgsi, &p->variants); break; } case GL_TESS_EVALUATION_PROGRAM_NV: { struct st_tesseval_program *p = (struct st_tesseval_program *)prog; st_get_basic_variant(st, PIPE_SHADER_TESS_EVAL, &p->tgsi, &p->variants); break; } case GL_GEOMETRY_PROGRAM_NV: { struct st_geometry_program *p = (struct st_geometry_program *)prog; st_get_basic_variant(st, PIPE_SHADER_GEOMETRY, &p->tgsi, &p->variants); break; } case GL_FRAGMENT_PROGRAM_ARB: { struct st_fragment_program *p = (struct st_fragment_program *)prog; struct st_fp_variant_key key; memset(&key, 0, sizeof(key)); key.st = st->has_shareable_shaders ? NULL : st; st_get_fp_variant(st, p, &key); break; } default: assert(0); } }