| /* |
| * Copyright (C) Intel Corp. 2006. All Rights Reserved. |
| * Intel funded Tungsten Graphics to |
| * develop this 3D driver. |
| * |
| * 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, sublicense, 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 NONINFRINGEMENT. |
| * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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. |
| */ |
| #include "brw_context.h" |
| #include "brw_wm.h" |
| #include "brw_state.h" |
| #include "brw_shader.h" |
| #include "main/enums.h" |
| #include "main/formats.h" |
| #include "main/fbobject.h" |
| #include "main/samplerobj.h" |
| #include "main/framebuffer.h" |
| #include "program/prog_parameter.h" |
| #include "program/program.h" |
| #include "intel_mipmap_tree.h" |
| #include "brw_nir.h" |
| #include "brw_program.h" |
| |
| #include "util/ralloc.h" |
| |
| static void |
| assign_fs_binding_table_offsets(const struct brw_device_info *devinfo, |
| const struct gl_shader_program *shader_prog, |
| const struct gl_program *prog, |
| const struct brw_wm_prog_key *key, |
| struct brw_wm_prog_data *prog_data) |
| { |
| uint32_t next_binding_table_offset = 0; |
| |
| /* If there are no color regions, we still perform an FB write to a null |
| * renderbuffer, which we place at surface index 0. |
| */ |
| prog_data->binding_table.render_target_start = next_binding_table_offset; |
| next_binding_table_offset += MAX2(key->nr_color_regions, 1); |
| |
| brw_assign_common_binding_table_offsets(MESA_SHADER_FRAGMENT, devinfo, |
| shader_prog, prog, &prog_data->base, |
| next_binding_table_offset); |
| } |
| |
| /** |
| * All Mesa program -> GPU code generation goes through this function. |
| * Depending on the instructions used (i.e. flow control instructions) |
| * we'll use one of two code generators. |
| */ |
| bool |
| brw_codegen_wm_prog(struct brw_context *brw, |
| struct gl_shader_program *prog, |
| struct brw_fragment_program *fp, |
| struct brw_wm_prog_key *key) |
| { |
| struct gl_context *ctx = &brw->ctx; |
| void *mem_ctx = ralloc_context(NULL); |
| struct brw_wm_prog_data prog_data; |
| const GLuint *program; |
| struct brw_shader *fs = NULL; |
| GLuint program_size; |
| bool start_busy = false; |
| double start_time = 0; |
| |
| if (prog) |
| fs = (struct brw_shader *)prog->_LinkedShaders[MESA_SHADER_FRAGMENT]; |
| |
| memset(&prog_data, 0, sizeof(prog_data)); |
| |
| /* Use ALT floating point mode for ARB programs so that 0^0 == 1. */ |
| if (!prog) |
| prog_data.base.use_alt_mode = true; |
| |
| assign_fs_binding_table_offsets(brw->intelScreen->devinfo, prog, |
| &fp->program.Base, key, &prog_data); |
| |
| /* Allocate the references to the uniforms that will end up in the |
| * prog_data associated with the compiled program, and which will be freed |
| * by the state cache. |
| */ |
| int param_count = fp->program.Base.nir->num_uniforms; |
| if (fs) |
| prog_data.base.nr_image_params = fs->base.NumImages; |
| /* The backend also sometimes adds params for texture size. */ |
| param_count += 2 * ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits; |
| prog_data.base.param = |
| rzalloc_array(NULL, const gl_constant_value *, param_count); |
| prog_data.base.pull_param = |
| rzalloc_array(NULL, const gl_constant_value *, param_count); |
| prog_data.base.image_param = |
| rzalloc_array(NULL, struct brw_image_param, |
| prog_data.base.nr_image_params); |
| prog_data.base.nr_params = param_count; |
| |
| if (prog) { |
| brw_nir_setup_glsl_uniforms(fp->program.Base.nir, prog, &fp->program.Base, |
| &prog_data.base, true); |
| } else { |
| brw_nir_setup_arb_uniforms(fp->program.Base.nir, &fp->program.Base, |
| &prog_data.base); |
| } |
| |
| if (unlikely(brw->perf_debug)) { |
| start_busy = (brw->batch.last_bo && |
| drm_intel_bo_busy(brw->batch.last_bo)); |
| start_time = get_time(); |
| } |
| |
| if (unlikely(INTEL_DEBUG & DEBUG_WM)) |
| brw_dump_ir("fragment", prog, fs ? &fs->base : NULL, &fp->program.Base); |
| |
| int st_index8 = -1, st_index16 = -1; |
| if (INTEL_DEBUG & DEBUG_SHADER_TIME) { |
| st_index8 = brw_get_shader_time_index(brw, prog, &fp->program.Base, ST_FS8); |
| st_index16 = brw_get_shader_time_index(brw, prog, &fp->program.Base, ST_FS16); |
| } |
| |
| char *error_str = NULL; |
| program = brw_compile_fs(brw->intelScreen->compiler, brw, mem_ctx, |
| key, &prog_data, fp->program.Base.nir, |
| &fp->program.Base, st_index8, st_index16, |
| brw->use_rep_send, &program_size, &error_str); |
| if (program == NULL) { |
| if (prog) { |
| prog->LinkStatus = false; |
| ralloc_strcat(&prog->InfoLog, error_str); |
| } |
| |
| _mesa_problem(NULL, "Failed to compile fragment shader: %s\n", error_str); |
| |
| ralloc_free(mem_ctx); |
| return false; |
| } |
| |
| if (unlikely(brw->perf_debug) && fs) { |
| if (fs->compiled_once) |
| brw_wm_debug_recompile(brw, prog, key); |
| fs->compiled_once = true; |
| |
| if (start_busy && !drm_intel_bo_busy(brw->batch.last_bo)) { |
| perf_debug("FS compile took %.03f ms and stalled the GPU\n", |
| (get_time() - start_time) * 1000); |
| } |
| } |
| |
| if (prog_data.base.total_scratch) { |
| brw_get_scratch_bo(brw, &brw->wm.base.scratch_bo, |
| prog_data.base.total_scratch * brw->max_wm_threads); |
| } |
| |
| if (unlikely(INTEL_DEBUG & DEBUG_WM)) |
| fprintf(stderr, "\n"); |
| |
| brw_upload_cache(&brw->cache, BRW_CACHE_FS_PROG, |
| key, sizeof(struct brw_wm_prog_key), |
| program, program_size, |
| &prog_data, sizeof(prog_data), |
| &brw->wm.base.prog_offset, &brw->wm.prog_data); |
| |
| ralloc_free(mem_ctx); |
| |
| return true; |
| } |
| |
| bool |
| brw_debug_recompile_sampler_key(struct brw_context *brw, |
| const struct brw_sampler_prog_key_data *old_key, |
| const struct brw_sampler_prog_key_data *key) |
| { |
| bool found = false; |
| |
| for (unsigned int i = 0; i < MAX_SAMPLERS; i++) { |
| found |= key_debug(brw, "EXT_texture_swizzle or DEPTH_TEXTURE_MODE", |
| old_key->swizzles[i], key->swizzles[i]); |
| } |
| found |= key_debug(brw, "GL_CLAMP enabled on any texture unit's 1st coordinate", |
| old_key->gl_clamp_mask[0], key->gl_clamp_mask[0]); |
| found |= key_debug(brw, "GL_CLAMP enabled on any texture unit's 2nd coordinate", |
| old_key->gl_clamp_mask[1], key->gl_clamp_mask[1]); |
| found |= key_debug(brw, "GL_CLAMP enabled on any texture unit's 3rd coordinate", |
| old_key->gl_clamp_mask[2], key->gl_clamp_mask[2]); |
| found |= key_debug(brw, "gather channel quirk on any texture unit", |
| old_key->gather_channel_quirk_mask, key->gather_channel_quirk_mask); |
| found |= key_debug(brw, "compressed multisample layout", |
| old_key->compressed_multisample_layout_mask, |
| key->compressed_multisample_layout_mask); |
| found |= key_debug(brw, "16x msaa", |
| old_key->msaa_16, |
| key->msaa_16); |
| |
| for (unsigned int i = 0; i < MAX_SAMPLERS; i++) { |
| found |= key_debug(brw, "textureGather workarounds", |
| old_key->gen6_gather_wa[i], key->gen6_gather_wa[i]); |
| } |
| |
| return found; |
| } |
| |
| void |
| brw_wm_debug_recompile(struct brw_context *brw, |
| struct gl_shader_program *prog, |
| const struct brw_wm_prog_key *key) |
| { |
| struct brw_cache_item *c = NULL; |
| const struct brw_wm_prog_key *old_key = NULL; |
| bool found = false; |
| |
| perf_debug("Recompiling fragment shader for program %d\n", prog->Name); |
| |
| for (unsigned int i = 0; i < brw->cache.size; i++) { |
| for (c = brw->cache.items[i]; c; c = c->next) { |
| if (c->cache_id == BRW_CACHE_FS_PROG) { |
| old_key = c->key; |
| |
| if (old_key->program_string_id == key->program_string_id) |
| break; |
| } |
| } |
| if (c) |
| break; |
| } |
| |
| if (!c) { |
| perf_debug(" Didn't find previous compile in the shader cache for debug\n"); |
| return; |
| } |
| |
| found |= key_debug(brw, "alphatest, computed depth, depth test, or " |
| "depth write", |
| old_key->iz_lookup, key->iz_lookup); |
| found |= key_debug(brw, "depth statistics", |
| old_key->stats_wm, key->stats_wm); |
| found |= key_debug(brw, "flat shading", |
| old_key->flat_shade, key->flat_shade); |
| found |= key_debug(brw, "per-sample shading", |
| old_key->persample_shading, key->persample_shading); |
| found |= key_debug(brw, "number of color buffers", |
| old_key->nr_color_regions, key->nr_color_regions); |
| found |= key_debug(brw, "MRT alpha test or alpha-to-coverage", |
| old_key->replicate_alpha, key->replicate_alpha); |
| found |= key_debug(brw, "rendering to FBO", |
| old_key->render_to_fbo, key->render_to_fbo); |
| found |= key_debug(brw, "fragment color clamping", |
| old_key->clamp_fragment_color, key->clamp_fragment_color); |
| found |= key_debug(brw, "multisampled FBO", |
| old_key->multisample_fbo, key->multisample_fbo); |
| found |= key_debug(brw, "line smoothing", |
| old_key->line_aa, key->line_aa); |
| found |= key_debug(brw, "renderbuffer height", |
| old_key->drawable_height, key->drawable_height); |
| found |= key_debug(brw, "input slots valid", |
| old_key->input_slots_valid, key->input_slots_valid); |
| found |= key_debug(brw, "mrt alpha test function", |
| old_key->alpha_test_func, key->alpha_test_func); |
| found |= key_debug(brw, "mrt alpha test reference value", |
| old_key->alpha_test_ref, key->alpha_test_ref); |
| |
| found |= brw_debug_recompile_sampler_key(brw, &old_key->tex, &key->tex); |
| |
| if (!found) { |
| perf_debug(" Something else\n"); |
| } |
| } |
| |
| static uint8_t |
| gen6_gather_workaround(GLenum internalformat) |
| { |
| switch (internalformat) { |
| case GL_R8I: return WA_SIGN | WA_8BIT; |
| case GL_R8UI: return WA_8BIT; |
| case GL_R16I: return WA_SIGN | WA_16BIT; |
| case GL_R16UI: return WA_16BIT; |
| default: |
| /* Note that even though GL_R32I and GL_R32UI have format overrides in |
| * the surface state, there is no shader w/a required. |
| */ |
| return 0; |
| } |
| } |
| |
| void |
| brw_populate_sampler_prog_key_data(struct gl_context *ctx, |
| const struct gl_program *prog, |
| unsigned sampler_count, |
| struct brw_sampler_prog_key_data *key) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| |
| for (int s = 0; s < sampler_count; s++) { |
| key->swizzles[s] = SWIZZLE_NOOP; |
| |
| if (!(prog->SamplersUsed & (1 << s))) |
| continue; |
| |
| int unit_id = prog->SamplerUnits[s]; |
| const struct gl_texture_unit *unit = &ctx->Texture.Unit[unit_id]; |
| |
| if (unit->_Current && unit->_Current->Target != GL_TEXTURE_BUFFER) { |
| const struct gl_texture_object *t = unit->_Current; |
| const struct gl_texture_image *img = t->Image[0][t->BaseLevel]; |
| struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit_id); |
| |
| const bool alpha_depth = t->DepthMode == GL_ALPHA && |
| (img->_BaseFormat == GL_DEPTH_COMPONENT || |
| img->_BaseFormat == GL_DEPTH_STENCIL); |
| |
| /* Haswell handles texture swizzling as surface format overrides |
| * (except for GL_ALPHA); all other platforms need MOVs in the shader. |
| */ |
| if (alpha_depth || (brw->gen < 8 && !brw->is_haswell)) |
| key->swizzles[s] = brw_get_texture_swizzle(ctx, t); |
| |
| if (brw->gen < 8 && |
| sampler->MinFilter != GL_NEAREST && |
| sampler->MagFilter != GL_NEAREST) { |
| if (sampler->WrapS == GL_CLAMP) |
| key->gl_clamp_mask[0] |= 1 << s; |
| if (sampler->WrapT == GL_CLAMP) |
| key->gl_clamp_mask[1] |= 1 << s; |
| if (sampler->WrapR == GL_CLAMP) |
| key->gl_clamp_mask[2] |= 1 << s; |
| } |
| |
| /* gather4's channel select for green from RG32F is broken; requires |
| * a shader w/a on IVB; fixable with just SCS on HSW. |
| */ |
| if (brw->gen == 7 && !brw->is_haswell && prog->UsesGather) { |
| if (img->InternalFormat == GL_RG32F) |
| key->gather_channel_quirk_mask |= 1 << s; |
| } |
| |
| /* Gen6's gather4 is broken for UINT/SINT; we treat them as |
| * UNORM/FLOAT instead and fix it in the shader. |
| */ |
| if (brw->gen == 6 && prog->UsesGather) { |
| key->gen6_gather_wa[s] = gen6_gather_workaround(img->InternalFormat); |
| } |
| |
| /* If this is a multisample sampler, and uses the CMS MSAA layout, |
| * then we need to emit slightly different code to first sample the |
| * MCS surface. |
| */ |
| struct intel_texture_object *intel_tex = |
| intel_texture_object((struct gl_texture_object *)t); |
| |
| /* From gen9 onwards some single sampled buffers can also be |
| * compressed. These don't need ld2dms sampling along with mcs fetch. |
| */ |
| if (brw->gen >= 7 && |
| intel_tex->mt->msaa_layout == INTEL_MSAA_LAYOUT_CMS && |
| intel_tex->mt->num_samples > 1) { |
| key->compressed_multisample_layout_mask |= 1 << s; |
| |
| if (intel_tex->mt->num_samples >= 16) { |
| assert(brw->gen >= 9); |
| key->msaa_16 |= 1 << s; |
| } |
| } |
| } |
| } |
| } |
| |
| static bool |
| brw_wm_state_dirty (struct brw_context *brw) |
| { |
| return brw_state_dirty(brw, |
| _NEW_BUFFERS | |
| _NEW_COLOR | |
| _NEW_DEPTH | |
| _NEW_FRAG_CLAMP | |
| _NEW_HINT | |
| _NEW_LIGHT | |
| _NEW_LINE | |
| _NEW_MULTISAMPLE | |
| _NEW_POLYGON | |
| _NEW_STENCIL | |
| _NEW_TEXTURE, |
| BRW_NEW_FRAGMENT_PROGRAM | |
| BRW_NEW_REDUCED_PRIMITIVE | |
| BRW_NEW_STATS_WM | |
| BRW_NEW_VUE_MAP_GEOM_OUT); |
| } |
| |
| static void |
| brw_wm_populate_key(struct brw_context *brw, struct brw_wm_prog_key *key) |
| { |
| struct gl_context *ctx = &brw->ctx; |
| /* BRW_NEW_FRAGMENT_PROGRAM */ |
| const struct brw_fragment_program *fp = |
| (struct brw_fragment_program *) brw->fragment_program; |
| const struct gl_program *prog = (struct gl_program *) brw->fragment_program; |
| GLuint lookup = 0; |
| GLuint line_aa; |
| bool program_uses_dfdy = fp->program.UsesDFdy; |
| |
| memset(key, 0, sizeof(*key)); |
| |
| /* Build the index for table lookup |
| */ |
| if (brw->gen < 6) { |
| /* _NEW_COLOR */ |
| if (fp->program.UsesKill || ctx->Color.AlphaEnabled) |
| lookup |= IZ_PS_KILL_ALPHATEST_BIT; |
| |
| if (fp->program.Base.OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) |
| lookup |= IZ_PS_COMPUTES_DEPTH_BIT; |
| |
| /* _NEW_DEPTH */ |
| if (ctx->Depth.Test) |
| lookup |= IZ_DEPTH_TEST_ENABLE_BIT; |
| |
| if (ctx->Depth.Test && ctx->Depth.Mask) /* ?? */ |
| lookup |= IZ_DEPTH_WRITE_ENABLE_BIT; |
| |
| /* _NEW_STENCIL | _NEW_BUFFERS */ |
| if (ctx->Stencil._Enabled) { |
| lookup |= IZ_STENCIL_TEST_ENABLE_BIT; |
| |
| if (ctx->Stencil.WriteMask[0] || |
| ctx->Stencil.WriteMask[ctx->Stencil._BackFace]) |
| lookup |= IZ_STENCIL_WRITE_ENABLE_BIT; |
| } |
| key->iz_lookup = lookup; |
| } |
| |
| line_aa = AA_NEVER; |
| |
| /* _NEW_LINE, _NEW_POLYGON, BRW_NEW_REDUCED_PRIMITIVE */ |
| if (ctx->Line.SmoothFlag) { |
| if (brw->reduced_primitive == GL_LINES) { |
| line_aa = AA_ALWAYS; |
| } |
| else if (brw->reduced_primitive == GL_TRIANGLES) { |
| if (ctx->Polygon.FrontMode == GL_LINE) { |
| line_aa = AA_SOMETIMES; |
| |
| if (ctx->Polygon.BackMode == GL_LINE || |
| (ctx->Polygon.CullFlag && |
| ctx->Polygon.CullFaceMode == GL_BACK)) |
| line_aa = AA_ALWAYS; |
| } |
| else if (ctx->Polygon.BackMode == GL_LINE) { |
| line_aa = AA_SOMETIMES; |
| |
| if ((ctx->Polygon.CullFlag && |
| ctx->Polygon.CullFaceMode == GL_FRONT)) |
| line_aa = AA_ALWAYS; |
| } |
| } |
| } |
| |
| key->line_aa = line_aa; |
| |
| /* _NEW_HINT */ |
| key->high_quality_derivatives = |
| ctx->Hint.FragmentShaderDerivative == GL_NICEST; |
| |
| if (brw->gen < 6) |
| key->stats_wm = brw->stats_wm; |
| |
| /* _NEW_LIGHT */ |
| key->flat_shade = (ctx->Light.ShadeModel == GL_FLAT); |
| |
| /* _NEW_FRAG_CLAMP | _NEW_BUFFERS */ |
| key->clamp_fragment_color = ctx->Color._ClampFragmentColor; |
| |
| /* _NEW_TEXTURE */ |
| brw_populate_sampler_prog_key_data(ctx, prog, brw->wm.base.sampler_count, |
| &key->tex); |
| |
| /* _NEW_BUFFERS */ |
| /* |
| * Include the draw buffer origin and height so that we can calculate |
| * fragment position values relative to the bottom left of the drawable, |
| * from the incoming screen origin relative position we get as part of our |
| * payload. |
| * |
| * This is only needed for the WM_WPOSXY opcode when the fragment program |
| * uses the gl_FragCoord input. |
| * |
| * We could avoid recompiling by including this as a constant referenced by |
| * our program, but if we were to do that it would also be nice to handle |
| * getting that constant updated at batchbuffer submit time (when we |
| * hold the lock and know where the buffer really is) rather than at emit |
| * time when we don't hold the lock and are just guessing. We could also |
| * just avoid using this as key data if the program doesn't use |
| * fragment.position. |
| * |
| * For DRI2 the origin_x/y will always be (0,0) but we still need the |
| * drawable height in order to invert the Y axis. |
| */ |
| if (fp->program.Base.InputsRead & VARYING_BIT_POS) { |
| key->drawable_height = _mesa_geometric_height(ctx->DrawBuffer); |
| } |
| |
| if ((fp->program.Base.InputsRead & VARYING_BIT_POS) || program_uses_dfdy) { |
| key->render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer); |
| } |
| |
| /* _NEW_BUFFERS */ |
| key->nr_color_regions = ctx->DrawBuffer->_NumColorDrawBuffers; |
| |
| /* _NEW_COLOR */ |
| key->force_dual_color_blend = brw->dual_color_blend_by_location && |
| (ctx->Color.BlendEnabled & 1) && ctx->Color.Blend[0]._UsesDualSrc; |
| |
| /* _NEW_MULTISAMPLE, _NEW_COLOR, _NEW_BUFFERS */ |
| key->replicate_alpha = ctx->DrawBuffer->_NumColorDrawBuffers > 1 && |
| (ctx->Multisample.SampleAlphaToCoverage || ctx->Color.AlphaEnabled); |
| |
| /* _NEW_BUFFERS _NEW_MULTISAMPLE */ |
| /* Ignore sample qualifier while computing this flag. */ |
| key->persample_shading = |
| _mesa_get_min_invocations_per_fragment(ctx, &fp->program, true) > 1; |
| |
| key->compute_pos_offset = |
| _mesa_get_min_invocations_per_fragment(ctx, &fp->program, false) > 1 && |
| fp->program.Base.SystemValuesRead & SYSTEM_BIT_SAMPLE_POS; |
| |
| key->multisample_fbo = ctx->Multisample.Enabled && |
| _mesa_geometric_samples(ctx->DrawBuffer) > 1; |
| |
| /* BRW_NEW_VUE_MAP_GEOM_OUT */ |
| if (brw->gen < 6 || _mesa_bitcount_64(fp->program.Base.InputsRead & |
| BRW_FS_VARYING_INPUT_MASK) > 16) |
| key->input_slots_valid = brw->vue_map_geom_out.slots_valid; |
| |
| |
| /* _NEW_COLOR | _NEW_BUFFERS */ |
| /* Pre-gen6, the hardware alpha test always used each render |
| * target's alpha to do alpha test, as opposed to render target 0's alpha |
| * like GL requires. Fix that by building the alpha test into the |
| * shader, and we'll skip enabling the fixed function alpha test. |
| */ |
| if (brw->gen < 6 && ctx->DrawBuffer->_NumColorDrawBuffers > 1 && |
| ctx->Color.AlphaEnabled) { |
| key->alpha_test_func = ctx->Color.AlphaFunc; |
| key->alpha_test_ref = ctx->Color.AlphaRef; |
| } |
| |
| /* The unique fragment program ID */ |
| key->program_string_id = fp->id; |
| } |
| |
| void |
| brw_upload_wm_prog(struct brw_context *brw) |
| { |
| struct gl_context *ctx = &brw->ctx; |
| struct gl_shader_program *current = ctx->_Shader->_CurrentFragmentProgram; |
| struct brw_wm_prog_key key; |
| struct brw_fragment_program *fp = (struct brw_fragment_program *) |
| brw->fragment_program; |
| |
| if (!brw_wm_state_dirty(brw)) |
| return; |
| |
| brw_wm_populate_key(brw, &key); |
| |
| if (!brw_search_cache(&brw->cache, BRW_CACHE_FS_PROG, |
| &key, sizeof(key), |
| &brw->wm.base.prog_offset, &brw->wm.prog_data)) { |
| bool success = brw_codegen_wm_prog(brw, current, fp, &key); |
| (void) success; |
| assert(success); |
| } |
| brw->wm.base.prog_data = &brw->wm.prog_data->base; |
| } |
| |
| bool |
| brw_fs_precompile(struct gl_context *ctx, |
| struct gl_shader_program *shader_prog, |
| struct gl_program *prog) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| struct brw_wm_prog_key key; |
| |
| struct gl_fragment_program *fp = (struct gl_fragment_program *) prog; |
| struct brw_fragment_program *bfp = brw_fragment_program(fp); |
| bool program_uses_dfdy = fp->UsesDFdy; |
| |
| memset(&key, 0, sizeof(key)); |
| |
| if (brw->gen < 6) { |
| if (fp->UsesKill) |
| key.iz_lookup |= IZ_PS_KILL_ALPHATEST_BIT; |
| |
| if (fp->Base.OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) |
| key.iz_lookup |= IZ_PS_COMPUTES_DEPTH_BIT; |
| |
| /* Just assume depth testing. */ |
| key.iz_lookup |= IZ_DEPTH_TEST_ENABLE_BIT; |
| key.iz_lookup |= IZ_DEPTH_WRITE_ENABLE_BIT; |
| } |
| |
| if (brw->gen < 6 || _mesa_bitcount_64(fp->Base.InputsRead & |
| BRW_FS_VARYING_INPUT_MASK) > 16) |
| key.input_slots_valid = fp->Base.InputsRead | VARYING_BIT_POS; |
| |
| brw_setup_tex_for_precompile(brw, &key.tex, &fp->Base); |
| |
| if (fp->Base.InputsRead & VARYING_BIT_POS) { |
| key.drawable_height = ctx->DrawBuffer->Height; |
| } |
| |
| key.nr_color_regions = _mesa_bitcount_64(fp->Base.OutputsWritten & |
| ~(BITFIELD64_BIT(FRAG_RESULT_DEPTH) | |
| BITFIELD64_BIT(FRAG_RESULT_SAMPLE_MASK))); |
| |
| if ((fp->Base.InputsRead & VARYING_BIT_POS) || program_uses_dfdy) { |
| key.render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer) || |
| key.nr_color_regions > 1; |
| } |
| |
| key.program_string_id = bfp->id; |
| |
| uint32_t old_prog_offset = brw->wm.base.prog_offset; |
| struct brw_wm_prog_data *old_prog_data = brw->wm.prog_data; |
| |
| bool success = brw_codegen_wm_prog(brw, shader_prog, bfp, &key); |
| |
| brw->wm.base.prog_offset = old_prog_offset; |
| brw->wm.prog_data = old_prog_data; |
| |
| return success; |
| } |