| /* |
| * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> |
| * Joakim Sindholt <opensource@zhasha.com> |
| * Copyright 2009 Marek Olšák <maraeo@gmail.com> |
| * |
| * 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 |
| * on 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 |
| * THE AUTHOR(S) AND/OR THEIR 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 "util/u_format.h" |
| #include "util/u_math.h" |
| #include "util/u_memory.h" |
| |
| #include "tgsi/tgsi_dump.h" |
| #include "tgsi/tgsi_ureg.h" |
| |
| #include "r300_cb.h" |
| #include "r300_context.h" |
| #include "r300_emit.h" |
| #include "r300_screen.h" |
| #include "r300_fs.h" |
| #include "r300_reg.h" |
| #include "r300_texture.h" |
| #include "r300_tgsi_to_rc.h" |
| |
| #include "compiler/radeon_compiler.h" |
| |
| /* Convert info about FS input semantics to r300_shader_semantics. */ |
| void r300_shader_read_fs_inputs(struct tgsi_shader_info* info, |
| struct r300_shader_semantics* fs_inputs) |
| { |
| int i; |
| unsigned index; |
| |
| r300_shader_semantics_reset(fs_inputs); |
| |
| for (i = 0; i < info->num_inputs; i++) { |
| index = info->input_semantic_index[i]; |
| |
| switch (info->input_semantic_name[i]) { |
| case TGSI_SEMANTIC_COLOR: |
| assert(index < ATTR_COLOR_COUNT); |
| fs_inputs->color[index] = i; |
| break; |
| |
| case TGSI_SEMANTIC_GENERIC: |
| assert(index < ATTR_GENERIC_COUNT); |
| fs_inputs->generic[index] = i; |
| break; |
| |
| case TGSI_SEMANTIC_FOG: |
| assert(index == 0); |
| fs_inputs->fog = i; |
| break; |
| |
| case TGSI_SEMANTIC_POSITION: |
| assert(index == 0); |
| fs_inputs->wpos = i; |
| break; |
| |
| case TGSI_SEMANTIC_FACE: |
| assert(index == 0); |
| fs_inputs->face = i; |
| break; |
| |
| default: |
| fprintf(stderr, "r300: FP: Unknown input semantic: %i\n", |
| info->input_semantic_name[i]); |
| } |
| } |
| } |
| |
| static void find_output_registers(struct r300_fragment_program_compiler * compiler, |
| struct r300_fragment_shader_code *shader) |
| { |
| unsigned i, colorbuf_count = 0; |
| |
| /* Mark the outputs as not present initially */ |
| compiler->OutputColor[0] = shader->info.num_outputs; |
| compiler->OutputColor[1] = shader->info.num_outputs; |
| compiler->OutputColor[2] = shader->info.num_outputs; |
| compiler->OutputColor[3] = shader->info.num_outputs; |
| compiler->OutputDepth = shader->info.num_outputs; |
| |
| /* Now see where they really are. */ |
| for(i = 0; i < shader->info.num_outputs; ++i) { |
| switch(shader->info.output_semantic_name[i]) { |
| case TGSI_SEMANTIC_COLOR: |
| compiler->OutputColor[colorbuf_count] = i; |
| colorbuf_count++; |
| break; |
| case TGSI_SEMANTIC_POSITION: |
| compiler->OutputDepth = i; |
| break; |
| } |
| } |
| } |
| |
| static void allocate_hardware_inputs( |
| struct r300_fragment_program_compiler * c, |
| void (*allocate)(void * data, unsigned input, unsigned hwreg), |
| void * mydata) |
| { |
| struct r300_shader_semantics* inputs = |
| (struct r300_shader_semantics*)c->UserData; |
| int i, reg = 0; |
| |
| /* Allocate input registers. */ |
| for (i = 0; i < ATTR_COLOR_COUNT; i++) { |
| if (inputs->color[i] != ATTR_UNUSED) { |
| allocate(mydata, inputs->color[i], reg++); |
| } |
| } |
| if (inputs->face != ATTR_UNUSED) { |
| allocate(mydata, inputs->face, reg++); |
| } |
| for (i = 0; i < ATTR_GENERIC_COUNT; i++) { |
| if (inputs->generic[i] != ATTR_UNUSED) { |
| allocate(mydata, inputs->generic[i], reg++); |
| } |
| } |
| if (inputs->fog != ATTR_UNUSED) { |
| allocate(mydata, inputs->fog, reg++); |
| } |
| if (inputs->wpos != ATTR_UNUSED) { |
| allocate(mydata, inputs->wpos, reg++); |
| } |
| } |
| |
| static void get_external_state( |
| struct r300_context* r300, |
| struct r300_fragment_program_external_state* state) |
| { |
| struct r300_textures_state *texstate = r300->textures_state.state; |
| unsigned i; |
| |
| for (i = 0; i < texstate->sampler_state_count; i++) { |
| struct r300_sampler_state *s = texstate->sampler_states[i]; |
| struct r300_sampler_view *v = texstate->sampler_views[i]; |
| struct r300_resource *t; |
| |
| if (!s || !v) { |
| continue; |
| } |
| |
| t = r300_resource(v->base.texture); |
| |
| if (s->state.compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) { |
| state->unit[i].compare_mode_enabled = 1; |
| |
| /* Fortunately, no need to translate this. */ |
| state->unit[i].texture_compare_func = s->state.compare_func; |
| } |
| |
| state->unit[i].non_normalized_coords = !s->state.normalized_coords; |
| state->unit[i].convert_unorm_to_snorm = |
| v->base.format == PIPE_FORMAT_RGTC1_SNORM || |
| v->base.format == PIPE_FORMAT_LATC1_SNORM; |
| |
| /* Pass texture swizzling to the compiler, some lowering passes need it. */ |
| if (v->base.format == PIPE_FORMAT_RGTC1_SNORM || |
| v->base.format == PIPE_FORMAT_LATC1_SNORM) { |
| unsigned char swizzle[4]; |
| |
| util_format_compose_swizzles( |
| util_format_description(v->base.format)->swizzle, |
| v->swizzle, |
| swizzle); |
| |
| state->unit[i].texture_swizzle = |
| RC_MAKE_SWIZZLE(swizzle[0], swizzle[1], |
| swizzle[2], swizzle[3]); |
| } else if (state->unit[i].compare_mode_enabled) { |
| state->unit[i].texture_swizzle = |
| RC_MAKE_SWIZZLE(v->swizzle[0], v->swizzle[1], |
| v->swizzle[2], v->swizzle[3]); |
| } |
| |
| /* XXX this should probably take into account STR, not just S. */ |
| if (t->tex.is_npot) { |
| switch (s->state.wrap_s) { |
| case PIPE_TEX_WRAP_REPEAT: |
| state->unit[i].wrap_mode = RC_WRAP_REPEAT; |
| break; |
| |
| case PIPE_TEX_WRAP_MIRROR_REPEAT: |
| state->unit[i].wrap_mode = RC_WRAP_MIRRORED_REPEAT; |
| break; |
| |
| case PIPE_TEX_WRAP_MIRROR_CLAMP: |
| case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE: |
| case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER: |
| state->unit[i].wrap_mode = RC_WRAP_MIRRORED_CLAMP; |
| break; |
| |
| default: |
| state->unit[i].wrap_mode = RC_WRAP_NONE; |
| } |
| |
| if (t->b.b.target == PIPE_TEXTURE_3D) |
| state->unit[i].clamp_and_scale_before_fetch = TRUE; |
| } |
| } |
| } |
| |
| static void r300_translate_fragment_shader( |
| struct r300_context* r300, |
| struct r300_fragment_shader_code* shader, |
| const struct tgsi_token *tokens); |
| |
| static void r300_dummy_fragment_shader( |
| struct r300_context* r300, |
| struct r300_fragment_shader_code* shader) |
| { |
| struct pipe_shader_state state; |
| struct ureg_program *ureg; |
| struct ureg_dst out; |
| struct ureg_src imm; |
| |
| /* Make a simple fragment shader which outputs (0, 0, 0, 1) */ |
| ureg = ureg_create(TGSI_PROCESSOR_FRAGMENT); |
| out = ureg_DECL_output(ureg, TGSI_SEMANTIC_COLOR, 0); |
| imm = ureg_imm4f(ureg, 0, 0, 0, 1); |
| |
| ureg_MOV(ureg, out, imm); |
| ureg_END(ureg); |
| |
| state.tokens = ureg_finalize(ureg); |
| |
| shader->dummy = TRUE; |
| r300_translate_fragment_shader(r300, shader, state.tokens); |
| |
| ureg_destroy(ureg); |
| } |
| |
| static void r300_emit_fs_code_to_buffer( |
| struct r300_context *r300, |
| struct r300_fragment_shader_code *shader) |
| { |
| struct rX00_fragment_program_code *generic_code = &shader->code; |
| unsigned imm_count = shader->immediates_count; |
| unsigned imm_first = shader->externals_count; |
| unsigned imm_end = generic_code->constants.Count; |
| struct rc_constant *constants = generic_code->constants.Constants; |
| unsigned i; |
| CB_LOCALS; |
| |
| if (r300->screen->caps.is_r500) { |
| struct r500_fragment_program_code *code = &generic_code->code.r500; |
| |
| shader->cb_code_size = 19 + |
| ((code->inst_end + 1) * 6) + |
| imm_count * 7 + |
| code->int_constant_count * 2; |
| |
| NEW_CB(shader->cb_code, shader->cb_code_size); |
| OUT_CB_REG(R500_US_CONFIG, R500_ZERO_TIMES_ANYTHING_EQUALS_ZERO); |
| OUT_CB_REG(R500_US_PIXSIZE, code->max_temp_idx); |
| OUT_CB_REG(R500_US_FC_CTRL, code->us_fc_ctrl); |
| for(i = 0; i < code->int_constant_count; i++){ |
| OUT_CB_REG(R500_US_FC_INT_CONST_0 + (i * 4), |
| code->int_constants[i]); |
| } |
| OUT_CB_REG(R500_US_CODE_RANGE, |
| R500_US_CODE_RANGE_ADDR(0) | R500_US_CODE_RANGE_SIZE(code->inst_end)); |
| OUT_CB_REG(R500_US_CODE_OFFSET, 0); |
| OUT_CB_REG(R500_US_CODE_ADDR, |
| R500_US_CODE_START_ADDR(0) | R500_US_CODE_END_ADDR(code->inst_end)); |
| |
| OUT_CB_REG(R500_GA_US_VECTOR_INDEX, R500_GA_US_VECTOR_INDEX_TYPE_INSTR); |
| OUT_CB_ONE_REG(R500_GA_US_VECTOR_DATA, (code->inst_end + 1) * 6); |
| for (i = 0; i <= code->inst_end; i++) { |
| OUT_CB(code->inst[i].inst0); |
| OUT_CB(code->inst[i].inst1); |
| OUT_CB(code->inst[i].inst2); |
| OUT_CB(code->inst[i].inst3); |
| OUT_CB(code->inst[i].inst4); |
| OUT_CB(code->inst[i].inst5); |
| } |
| |
| /* Emit immediates. */ |
| if (imm_count) { |
| for(i = imm_first; i < imm_end; ++i) { |
| if (constants[i].Type == RC_CONSTANT_IMMEDIATE) { |
| const float *data = constants[i].u.Immediate; |
| |
| OUT_CB_REG(R500_GA_US_VECTOR_INDEX, |
| R500_GA_US_VECTOR_INDEX_TYPE_CONST | |
| (i & R500_GA_US_VECTOR_INDEX_MASK)); |
| OUT_CB_ONE_REG(R500_GA_US_VECTOR_DATA, 4); |
| OUT_CB_TABLE(data, 4); |
| } |
| } |
| } |
| } else { /* r300 */ |
| struct r300_fragment_program_code *code = &generic_code->code.r300; |
| unsigned int alu_length = code->alu.length; |
| unsigned int alu_iterations = ((alu_length - 1) / 64) + 1; |
| unsigned int tex_length = code->tex.length; |
| unsigned int tex_iterations = |
| tex_length > 0 ? ((tex_length - 1) / 32) + 1 : 0; |
| unsigned int iterations = |
| alu_iterations > tex_iterations ? alu_iterations : tex_iterations; |
| unsigned int bank = 0; |
| |
| shader->cb_code_size = 15 + |
| /* R400_US_CODE_BANK */ |
| (r300->screen->caps.is_r400 ? 2 * (iterations + 1): 0) + |
| /* R400_US_CODE_EXT */ |
| (r300->screen->caps.is_r400 ? 2 : 0) + |
| /* R300_US_ALU_{RGB,ALPHA}_{INST,ADDR}_0, R400_US_ALU_EXT_ADDR_0 */ |
| (code->r390_mode ? (5 * alu_iterations) : 4) + |
| /* R400_US_ALU_EXT_ADDR_[0-63] */ |
| (code->r390_mode ? (code->alu.length) : 0) + |
| /* R300_US_ALU_{RGB,ALPHA}_{INST,ADDR}_0 */ |
| code->alu.length * 4 + |
| /* R300_US_TEX_INST_0, R300_US_TEX_INST_[0-31] */ |
| (code->tex.length > 0 ? code->tex.length + tex_iterations : 0) + |
| imm_count * 5; |
| |
| NEW_CB(shader->cb_code, shader->cb_code_size); |
| |
| OUT_CB_REG(R300_US_CONFIG, code->config); |
| OUT_CB_REG(R300_US_PIXSIZE, code->pixsize); |
| OUT_CB_REG(R300_US_CODE_OFFSET, code->code_offset); |
| |
| if (code->r390_mode) { |
| OUT_CB_REG(R400_US_CODE_EXT, code->r400_code_offset_ext); |
| } else if (r300->screen->caps.is_r400) { |
| /* This register appears to affect shaders even if r390_mode is |
| * disabled, so it needs to be set to 0 for shaders that |
| * don't use r390_mode. */ |
| OUT_CB_REG(R400_US_CODE_EXT, 0); |
| } |
| |
| OUT_CB_REG_SEQ(R300_US_CODE_ADDR_0, 4); |
| OUT_CB_TABLE(code->code_addr, 4); |
| |
| do { |
| unsigned int bank_alu_length = (alu_length < 64 ? alu_length : 64); |
| unsigned int bank_alu_offset = bank * 64; |
| unsigned int bank_tex_length = (tex_length < 32 ? tex_length : 32); |
| unsigned int bank_tex_offset = bank * 32; |
| |
| if (r300->screen->caps.is_r400) { |
| OUT_CB_REG(R400_US_CODE_BANK, code->r390_mode ? |
| (bank << R400_BANK_SHIFT) | R400_R390_MODE_ENABLE : 0);//2 |
| } |
| |
| if (bank_alu_length > 0) { |
| OUT_CB_REG_SEQ(R300_US_ALU_RGB_INST_0, bank_alu_length); |
| for (i = 0; i < bank_alu_length; i++) |
| OUT_CB(code->alu.inst[i + bank_alu_offset].rgb_inst); |
| |
| OUT_CB_REG_SEQ(R300_US_ALU_RGB_ADDR_0, bank_alu_length); |
| for (i = 0; i < bank_alu_length; i++) |
| OUT_CB(code->alu.inst[i + bank_alu_offset].rgb_addr); |
| |
| OUT_CB_REG_SEQ(R300_US_ALU_ALPHA_INST_0, bank_alu_length); |
| for (i = 0; i < bank_alu_length; i++) |
| OUT_CB(code->alu.inst[i + bank_alu_offset].alpha_inst); |
| |
| OUT_CB_REG_SEQ(R300_US_ALU_ALPHA_ADDR_0, bank_alu_length); |
| for (i = 0; i < bank_alu_length; i++) |
| OUT_CB(code->alu.inst[i + bank_alu_offset].alpha_addr); |
| |
| if (code->r390_mode) { |
| OUT_CB_REG_SEQ(R400_US_ALU_EXT_ADDR_0, bank_alu_length); |
| for (i = 0; i < bank_alu_length; i++) |
| OUT_CB(code->alu.inst[i + bank_alu_offset].r400_ext_addr); |
| } |
| } |
| |
| if (bank_tex_length > 0) { |
| OUT_CB_REG_SEQ(R300_US_TEX_INST_0, bank_tex_length); |
| OUT_CB_TABLE(code->tex.inst + bank_tex_offset, bank_tex_length); |
| } |
| |
| alu_length -= bank_alu_length; |
| tex_length -= bank_tex_length; |
| bank++; |
| } while(code->r390_mode && (alu_length > 0 || tex_length > 0)); |
| |
| /* R400_US_CODE_BANK needs to be reset to 0, otherwise some shaders |
| * will be rendered incorrectly. */ |
| if (r300->screen->caps.is_r400) { |
| OUT_CB_REG(R400_US_CODE_BANK, |
| code->r390_mode ? R400_R390_MODE_ENABLE : 0); |
| } |
| |
| /* Emit immediates. */ |
| if (imm_count) { |
| for(i = imm_first; i < imm_end; ++i) { |
| if (constants[i].Type == RC_CONSTANT_IMMEDIATE) { |
| const float *data = constants[i].u.Immediate; |
| |
| OUT_CB_REG_SEQ(R300_PFS_PARAM_0_X + i * 16, 4); |
| OUT_CB(pack_float24(data[0])); |
| OUT_CB(pack_float24(data[1])); |
| OUT_CB(pack_float24(data[2])); |
| OUT_CB(pack_float24(data[3])); |
| } |
| } |
| } |
| } |
| |
| OUT_CB_REG(R300_FG_DEPTH_SRC, shader->fg_depth_src); |
| OUT_CB_REG(R300_US_W_FMT, shader->us_out_w); |
| END_CB; |
| } |
| |
| static void r300_translate_fragment_shader( |
| struct r300_context* r300, |
| struct r300_fragment_shader_code* shader, |
| const struct tgsi_token *tokens) |
| { |
| struct r300_fragment_program_compiler compiler; |
| struct tgsi_to_rc ttr; |
| int wpos, face; |
| unsigned i; |
| |
| tgsi_scan_shader(tokens, &shader->info); |
| r300_shader_read_fs_inputs(&shader->info, &shader->inputs); |
| |
| wpos = shader->inputs.wpos; |
| face = shader->inputs.face; |
| |
| /* Setup the compiler. */ |
| memset(&compiler, 0, sizeof(compiler)); |
| rc_init(&compiler.Base); |
| DBG_ON(r300, DBG_FP) ? compiler.Base.Debug |= RC_DBG_LOG : 0; |
| DBG_ON(r300, DBG_P_STAT) ? compiler.Base.Debug |= RC_DBG_STATS : 0; |
| |
| compiler.code = &shader->code; |
| compiler.state = shader->compare_state; |
| compiler.Base.is_r500 = r300->screen->caps.is_r500; |
| compiler.Base.is_r400 = r300->screen->caps.is_r400; |
| compiler.Base.disable_optimizations = DBG_ON(r300, DBG_NO_OPT); |
| compiler.Base.has_half_swizzles = TRUE; |
| compiler.Base.has_presub = TRUE; |
| compiler.Base.has_omod = TRUE; |
| compiler.Base.max_temp_regs = |
| compiler.Base.is_r500 ? 128 : (compiler.Base.is_r400 ? 64 : 32); |
| compiler.Base.max_constants = compiler.Base.is_r500 ? 256 : 32; |
| compiler.Base.max_alu_insts = |
| (compiler.Base.is_r500 || compiler.Base.is_r400) ? 512 : 64; |
| compiler.Base.max_tex_insts = |
| (compiler.Base.is_r500 || compiler.Base.is_r400) ? 512 : 32; |
| compiler.AllocateHwInputs = &allocate_hardware_inputs; |
| compiler.UserData = &shader->inputs; |
| |
| find_output_registers(&compiler, shader); |
| |
| shader->write_all = FALSE; |
| for (i = 0; i < shader->info.num_properties; i++) { |
| if (shader->info.properties[i].name == TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS) { |
| shader->write_all = TRUE; |
| } |
| } |
| |
| if (compiler.Base.Debug & RC_DBG_LOG) { |
| DBG(r300, DBG_FP, "r300: Initial fragment program\n"); |
| tgsi_dump(tokens, 0); |
| } |
| |
| /* Translate TGSI to our internal representation */ |
| ttr.compiler = &compiler.Base; |
| ttr.info = &shader->info; |
| ttr.use_half_swizzles = TRUE; |
| |
| r300_tgsi_to_rc(&ttr, tokens); |
| |
| if (ttr.error) { |
| fprintf(stderr, "r300 FP: Cannot translate a shader. " |
| "Using a dummy shader instead.\n"); |
| r300_dummy_fragment_shader(r300, shader); |
| return; |
| } |
| |
| if (!r300->screen->caps.is_r500 || |
| compiler.Base.Program.Constants.Count > 200) { |
| compiler.Base.remove_unused_constants = TRUE; |
| } |
| |
| /** |
| * Transform the program to support WPOS. |
| * |
| * Introduce a small fragment at the start of the program that will be |
| * the only code that directly reads the WPOS input. |
| * All other code pieces that reference that input will be rewritten |
| * to read from a newly allocated temporary. */ |
| if (wpos != ATTR_UNUSED) { |
| /* Moving the input to some other reg is not really necessary. */ |
| rc_transform_fragment_wpos(&compiler.Base, wpos, wpos, TRUE); |
| } |
| |
| if (face != ATTR_UNUSED) { |
| rc_transform_fragment_face(&compiler.Base, face); |
| } |
| |
| /* Invoke the compiler */ |
| r3xx_compile_fragment_program(&compiler); |
| |
| if (compiler.Base.Error) { |
| fprintf(stderr, "r300 FP: Compiler Error:\n%sUsing a dummy shader" |
| " instead.\n", compiler.Base.ErrorMsg); |
| |
| if (shader->dummy) { |
| fprintf(stderr, "r300 FP: Cannot compile the dummy shader! " |
| "Giving up...\n"); |
| abort(); |
| } |
| |
| rc_destroy(&compiler.Base); |
| r300_dummy_fragment_shader(r300, shader); |
| return; |
| } |
| |
| /* Shaders with zero instructions are invalid, |
| * use the dummy shader instead. */ |
| if (shader->code.code.r500.inst_end == -1) { |
| rc_destroy(&compiler.Base); |
| r300_dummy_fragment_shader(r300, shader); |
| return; |
| } |
| |
| /* Initialize numbers of constants for each type. */ |
| shader->externals_count = 0; |
| for (i = 0; |
| i < shader->code.constants.Count && |
| shader->code.constants.Constants[i].Type == RC_CONSTANT_EXTERNAL; i++) { |
| shader->externals_count = i+1; |
| } |
| shader->immediates_count = 0; |
| shader->rc_state_count = 0; |
| |
| for (i = shader->externals_count; i < shader->code.constants.Count; i++) { |
| switch (shader->code.constants.Constants[i].Type) { |
| case RC_CONSTANT_IMMEDIATE: |
| ++shader->immediates_count; |
| break; |
| case RC_CONSTANT_STATE: |
| ++shader->rc_state_count; |
| break; |
| default: |
| assert(0); |
| } |
| } |
| |
| /* Setup shader depth output. */ |
| if (shader->code.writes_depth) { |
| shader->fg_depth_src = R300_FG_DEPTH_SRC_SHADER; |
| shader->us_out_w = R300_W_FMT_W24 | R300_W_SRC_US; |
| } else { |
| shader->fg_depth_src = R300_FG_DEPTH_SRC_SCAN; |
| shader->us_out_w = R300_W_FMT_W0 | R300_W_SRC_US; |
| } |
| |
| /* And, finally... */ |
| rc_destroy(&compiler.Base); |
| |
| /* Build the command buffer. */ |
| r300_emit_fs_code_to_buffer(r300, shader); |
| } |
| |
| boolean r300_pick_fragment_shader(struct r300_context* r300) |
| { |
| struct r300_fragment_shader* fs = r300_fs(r300); |
| struct r300_fragment_program_external_state state = {{{ 0 }}}; |
| struct r300_fragment_shader_code* ptr; |
| |
| get_external_state(r300, &state); |
| |
| if (!fs->first) { |
| /* Build the fragment shader for the first time. */ |
| fs->first = fs->shader = CALLOC_STRUCT(r300_fragment_shader_code); |
| |
| memcpy(&fs->shader->compare_state, &state, |
| sizeof(struct r300_fragment_program_external_state)); |
| r300_translate_fragment_shader(r300, fs->shader, fs->state.tokens); |
| return TRUE; |
| |
| } else { |
| /* Check if the currently-bound shader has been compiled |
| * with the texture-compare state we need. */ |
| if (memcmp(&fs->shader->compare_state, &state, sizeof(state)) != 0) { |
| /* Search for the right shader. */ |
| ptr = fs->first; |
| while (ptr) { |
| if (memcmp(&ptr->compare_state, &state, sizeof(state)) == 0) { |
| if (fs->shader != ptr) { |
| fs->shader = ptr; |
| return TRUE; |
| } |
| /* The currently-bound one is OK. */ |
| return FALSE; |
| } |
| ptr = ptr->next; |
| } |
| |
| /* Not found, gotta compile a new one. */ |
| ptr = CALLOC_STRUCT(r300_fragment_shader_code); |
| ptr->next = fs->first; |
| fs->first = fs->shader = ptr; |
| |
| ptr->compare_state = state; |
| r300_translate_fragment_shader(r300, ptr, fs->state.tokens); |
| return TRUE; |
| } |
| } |
| |
| return FALSE; |
| } |
