/************************************************************************** * * 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 * 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_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) 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); if (fpv->tgsi.tokens) st_free_tokens(fpv->tgsi.tokens); 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 (VARYING_SLOT_x) * to TGSI output slots * \param tokensOut destination for TGSI tokens * \return pointer to cached pipe_shader object. */ void st_prepare_vertex_program(struct gl_context *ctx, struct st_vertex_program *stvp) { struct st_context *st = st_context(ctx); GLuint attr; stvp->num_inputs = 0; stvp->num_outputs = 0; if (stvp->Base.IsPositionInvariant) _mesa_insert_mvp_code(ctx, &stvp->Base); if (!stvp->glsl_to_tgsi) 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 & BITFIELD64_BIT(attr)) != 0) { 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 < VARYING_SLOT_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 VARYING_SLOT_POS: stvp->output_semantic_name[slot] = TGSI_SEMANTIC_POSITION; stvp->output_semantic_index[slot] = 0; break; case VARYING_SLOT_COL0: stvp->output_semantic_name[slot] = TGSI_SEMANTIC_COLOR; stvp->output_semantic_index[slot] = 0; break; case VARYING_SLOT_COL1: stvp->output_semantic_name[slot] = TGSI_SEMANTIC_COLOR; stvp->output_semantic_index[slot] = 1; break; case VARYING_SLOT_BFC0: stvp->output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR; stvp->output_semantic_index[slot] = 0; break; case VARYING_SLOT_BFC1: stvp->output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR; stvp->output_semantic_index[slot] = 1; break; case VARYING_SLOT_FOGC: stvp->output_semantic_name[slot] = TGSI_SEMANTIC_FOG; stvp->output_semantic_index[slot] = 0; break; case VARYING_SLOT_PSIZ: stvp->output_semantic_name[slot] = TGSI_SEMANTIC_PSIZE; stvp->output_semantic_index[slot] = 0; break; case VARYING_SLOT_CLIP_DIST0: stvp->output_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; stvp->output_semantic_index[slot] = 0; break; case VARYING_SLOT_CLIP_DIST1: stvp->output_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; stvp->output_semantic_index[slot] = 1; break; case VARYING_SLOT_EDGE: assert(0); break; case VARYING_SLOT_CLIP_VERTEX: stvp->output_semantic_name[slot] = TGSI_SEMANTIC_CLIPVERTEX; stvp->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: stvp->output_semantic_name[slot] = st->needs_texcoord_semantic ? TGSI_SEMANTIC_TEXCOORD : TGSI_SEMANTIC_GENERIC; stvp->output_semantic_index[slot] = attr - VARYING_SLOT_TEX0; break; case VARYING_SLOT_VAR0: default: assert(attr < VARYING_SLOT_MAX); stvp->output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; stvp->output_semantic_index[slot] = st->needs_texcoord_semantic ? (attr - VARYING_SLOT_VAR0) : (attr - VARYING_SLOT_TEX0); break; } } } /* similar hack to above, presetup potentially unused edgeflag output */ stvp->result_to_output[VARYING_SLOT_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->ctx, stvp); if (!stvp->glsl_to_tgsi) { _mesa_remove_output_reads(&stvp->Base.Base, PROGRAM_OUTPUT); } 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"); } 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, stvp->input_to_index, NULL, /* input semantic name */ NULL, /* input semantic index */ NULL, /* interp mode */ NULL, /* is centroid */ /* outputs */ stvp->num_outputs, stvp->result_to_output, stvp->output_semantic_name, stvp->output_semantic_index, key->passthrough_edgeflags, key->clamp_color); else 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, key->clamp_color); if (error) goto fail; vpv->tgsi.tokens = ureg_get_tokens( ureg, NULL ); if (!vpv->tgsi.tokens) goto fail; ureg_destroy( ureg ); if (stvp->glsl_to_tgsi) { st_translate_stream_output_info(stvp->glsl_to_tgsi, stvp->result_to_output, &vpv->tgsi.stream_output); } 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; } 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 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; GLuint outputMapping[FRAG_RESULT_MAX]; GLuint inputMapping[VARYING_SLOT_MAX]; GLuint interpMode[PIPE_MAX_SHADER_INPUTS]; /* XXX size? */ 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]; GLboolean is_centroid[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; if (!variant) return NULL; assert(!(key->bitmap && key->drawpixels)); 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); } if (!stfp->glsl_to_tgsi) _mesa_remove_output_reads(&stfp->Base.Base, PROGRAM_OUTPUT); /* * 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; is_centroid[slot] = (stfp->Base.IsCentroid & BITFIELD64_BIT(attr)) != 0; 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_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_TEX0); input_semantic_index[slot] = st->needs_texcoord_semantic ? (attr - VARYING_SLOT_VAR0) : (attr - VARYING_SLOT_TEX0); input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; 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); } /* 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: /* 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) { free(variant); 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); if (stfp->Base.FragDepthLayout != FRAG_DEPTH_LAYOUT_NONE) { switch (stfp->Base.FragDepthLayout) { case FRAG_DEPTH_LAYOUT_ANY: ureg_property_fs_depth_layout(ureg, TGSI_FS_DEPTH_LAYOUT_ANY); break; case FRAG_DEPTH_LAYOUT_GREATER: ureg_property_fs_depth_layout(ureg, TGSI_FS_DEPTH_LAYOUT_GREATER); break; case FRAG_DEPTH_LAYOUT_LESS: ureg_property_fs_depth_layout(ureg, TGSI_FS_DEPTH_LAYOUT_LESS); break; case FRAG_DEPTH_LAYOUT_UNCHANGED: ureg_property_fs_depth_layout(ureg, 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, input_semantic_name, input_semantic_index, interpMode, is_centroid, /* outputs */ fs_num_outputs, outputMapping, fs_output_semantic_name, fs_output_semantic_index, FALSE, key->clamp_color ); 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, FALSE, key->clamp_color); variant->tgsi.tokens = ureg_get_tokens( ureg, NULL ); ureg_destroy( ureg ); /* fill in variant */ variant->driver_shader = pipe->create_fs_state(pipe, &variant->tgsi); variant->key = *key; if (ST_DEBUG & DEBUG_TGSI) { tgsi_dump( variant->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[VARYING_SLOT_MAX]; GLuint outputMapping[VARYING_SLOT_MAX]; struct pipe_context *pipe = st->pipe; GLuint attr; GLbitfield64 inputsRead; GLuint vslot = 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; if (!stgp->glsl_to_tgsi) { _mesa_remove_output_reads(&stgp->Base.Base, PROGRAM_OUTPUT); } 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. */ inputsRead = stgp->Base.Base.InputsRead; for (attr = 0; attr < VARYING_SLOT_MAX; attr++) { if ((inputsRead & BITFIELD64_BIT(attr)) != 0) { 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 != VARYING_SLOT_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 VARYING_SLOT_PRIMITIVE_ID: stgp->input_semantic_name[slot] = TGSI_SEMANTIC_PRIMID; stgp->input_semantic_index[slot] = 0; break; case VARYING_SLOT_POS: stgp->input_semantic_name[slot] = TGSI_SEMANTIC_POSITION; stgp->input_semantic_index[slot] = 0; break; case VARYING_SLOT_COL0: stgp->input_semantic_name[slot] = TGSI_SEMANTIC_COLOR; stgp->input_semantic_index[slot] = 0; break; case VARYING_SLOT_COL1: stgp->input_semantic_name[slot] = TGSI_SEMANTIC_COLOR; stgp->input_semantic_index[slot] = 1; break; case VARYING_SLOT_FOGC: stgp->input_semantic_name[slot] = TGSI_SEMANTIC_FOG; stgp->input_semantic_index[slot] = 0; break; case VARYING_SLOT_CLIP_VERTEX: stgp->input_semantic_name[slot] = TGSI_SEMANTIC_CLIPVERTEX; stgp->input_semantic_index[slot] = 0; break; case VARYING_SLOT_CLIP_DIST0: stgp->input_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; stgp->input_semantic_index[slot] = 0; break; case VARYING_SLOT_CLIP_DIST1: stgp->input_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; stgp->input_semantic_index[slot] = 1; 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: stgp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; stgp->input_semantic_index[slot] = (attr - VARYING_SLOT_TEX0); break; case VARYING_SLOT_VAR0: default: assert(attr >= VARYING_SLOT_VAR0 && attr < VARYING_SLOT_MAX); stgp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; stgp->input_semantic_index[slot] = (VARYING_SLOT_VAR0 - VARYING_SLOT_TEX0 + attr - VARYING_SLOT_VAR0); break; } } } /* 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; } /* * 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 (stgp->Base.Base.OutputsWritten & BITFIELD64_BIT(attr)) { GLuint slot; slot = gs_num_outputs; gs_num_outputs++; outputMapping[attr] = slot; switch (attr) { case VARYING_SLOT_POS: assert(slot == 0); gs_output_semantic_name[slot] = TGSI_SEMANTIC_POSITION; gs_output_semantic_index[slot] = 0; break; case VARYING_SLOT_COL0: gs_output_semantic_name[slot] = TGSI_SEMANTIC_COLOR; gs_output_semantic_index[slot] = 0; break; case VARYING_SLOT_COL1: gs_output_semantic_name[slot] = TGSI_SEMANTIC_COLOR; gs_output_semantic_index[slot] = 1; break; case VARYING_SLOT_BFC0: gs_output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR; gs_output_semantic_index[slot] = 0; break; case VARYING_SLOT_BFC1: gs_output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR; gs_output_semantic_index[slot] = 1; break; case VARYING_SLOT_FOGC: gs_output_semantic_name[slot] = TGSI_SEMANTIC_FOG; gs_output_semantic_index[slot] = 0; break; case VARYING_SLOT_PSIZ: gs_output_semantic_name[slot] = TGSI_SEMANTIC_PSIZE; gs_output_semantic_index[slot] = 0; break; case VARYING_SLOT_CLIP_VERTEX: gs_output_semantic_name[slot] = TGSI_SEMANTIC_CLIPVERTEX; gs_output_semantic_index[slot] = 0; break; case VARYING_SLOT_CLIP_DIST0: gs_output_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; gs_output_semantic_index[slot] = 0; break; case VARYING_SLOT_CLIP_DIST1: gs_output_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; gs_output_semantic_index[slot] = 1; 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: gs_output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; gs_output_semantic_index[slot] = (attr - VARYING_SLOT_TEX0); break; case VARYING_SLOT_VAR0: default: assert(slot < Elements(gs_output_semantic_name)); assert(attr >= VARYING_SLOT_VAR0); gs_output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; gs_output_semantic_index[slot] = (VARYING_SLOT_VAR0 - VARYING_SLOT_TEX0 + attr - VARYING_SLOT_VAR0); } } } assert(gs_output_semantic_name[0] == TGSI_SEMANTIC_POSITION); /* find max output slot referenced to compute gs_num_outputs */ for (attr = 0; attr < VARYING_SLOT_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); if (stgp->glsl_to_tgsi) st_translate_program(st->ctx, TGSI_PROCESSOR_GEOMETRY, ureg, stgp->glsl_to_tgsi, &stgp->Base.Base, /* inputs */ gs_num_inputs, inputMapping, stgp->input_semantic_name, stgp->input_semantic_index, NULL, NULL, /* outputs */ gs_num_outputs, outputMapping, gs_output_semantic_name, gs_output_semantic_index, FALSE, FALSE); else 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, FALSE); stgp->num_inputs = gs_num_inputs; stgp->tgsi.tokens = ureg_get_tokens( ureg, NULL ); ureg_destroy( ureg ); if (stgp->glsl_to_tgsi) { st_translate_stream_output_info(stgp->glsl_to_tgsi, outputMapping, &stgp->tgsi.stream_output); } /* 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 || program == &_mesa_DummyProgram) 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 0x%x in " "destroy_program_variants_cb()", program->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 < Elements(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: { 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); } /** * 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); } } }