| /* |
| * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> |
| * Joakim Sindholt <opensource@zhasha.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 "tgsi/tgsi_dump.h" |
| |
| #include "r300_context.h" |
| #include "r300_screen.h" |
| #include "r300_fs.h" |
| #include "r300_tgsi_to_rc.h" |
| |
| #include "radeon_code.h" |
| #include "radeon_compiler.h" |
| |
| static void find_output_registers(struct r300_fragment_program_compiler * compiler, |
| struct r300_fragment_shader * fs) |
| { |
| unsigned i; |
| |
| /* Mark the outputs as not present initially */ |
| compiler->OutputColor = fs->info.num_outputs; |
| compiler->OutputDepth = fs->info.num_outputs; |
| |
| /* Now see where they really are. */ |
| for(i = 0; i < fs->info.num_outputs; ++i) { |
| switch(fs->info.output_semantic_name[i]) { |
| case TGSI_SEMANTIC_COLOR: |
| compiler->OutputColor = i; |
| 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 tgsi_shader_info* info = &((struct r300_fragment_shader*)c->UserData)->info; |
| int total_colors = 0; |
| int colors = 0; |
| int total_generic = 0; |
| int generic = 0; |
| int i; |
| |
| for (i = 0; i < info->num_inputs; i++) { |
| switch (info->input_semantic_name[i]) { |
| case TGSI_SEMANTIC_COLOR: |
| total_colors++; |
| break; |
| case TGSI_SEMANTIC_FOG: |
| case TGSI_SEMANTIC_GENERIC: |
| total_generic++; |
| break; |
| } |
| } |
| |
| for(i = 0; i < info->num_inputs; i++) { |
| switch (info->input_semantic_name[i]) { |
| case TGSI_SEMANTIC_COLOR: |
| allocate(mydata, i, colors); |
| colors++; |
| break; |
| case TGSI_SEMANTIC_FOG: |
| case TGSI_SEMANTIC_GENERIC: |
| allocate(mydata, i, total_colors + generic); |
| generic++; |
| break; |
| } |
| } |
| } |
| |
| void r300_translate_fragment_shader(struct r300_context* r300, |
| struct r300_fragment_shader* fs) |
| { |
| struct r300_fragment_program_compiler compiler; |
| struct tgsi_to_rc ttr; |
| |
| memset(&compiler, 0, sizeof(compiler)); |
| rc_init(&compiler.Base); |
| compiler.Base.Debug = DBG_ON(r300, DBG_FP); |
| |
| compiler.code = &fs->code; |
| compiler.is_r500 = r300_screen(r300->context.screen)->caps->is_r500; |
| compiler.AllocateHwInputs = &allocate_hardware_inputs; |
| compiler.UserData = fs; |
| |
| /* TODO: Program compilation depends on texture compare modes, |
| * which are sampler state. Therefore, programs need to be recompiled |
| * depending on this state as in the classic Mesa driver. |
| * |
| * This is not yet handled correctly. |
| */ |
| |
| find_output_registers(&compiler, fs); |
| |
| if (compiler.Base.Debug) { |
| debug_printf("r300: Initial fragment program\n"); |
| tgsi_dump(fs->state.tokens, 0); |
| } |
| |
| /* Translate TGSI to our internal representation */ |
| ttr.compiler = &compiler.Base; |
| ttr.info = &fs->info; |
| |
| r300_tgsi_to_rc(&ttr, fs->state.tokens); |
| |
| /* Invoke the compiler */ |
| r3xx_compile_fragment_program(&compiler); |
| if (compiler.Base.Error) { |
| /* XXX failover maybe? */ |
| DBG(r300, DBG_FP, "r300: Error compiling fragment program: %s\n", |
| compiler.Base.ErrorMsg); |
| } |
| |
| /* And, finally... */ |
| rc_destroy(&compiler.Base); |
| fs->translated = TRUE; |
| } |