Joakim Sindholt | 6228588 | 2009-06-26 01:08:13 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> |
| 3 | * Joakim Sindholt <opensource@zhasha.com> |
Marek Olšák | cb90235 | 2009-11-26 19:37:58 +0100 | [diff] [blame] | 4 | * Copyright 2009 Marek Olšák <maraeo@gmail.com> |
Joakim Sindholt | 6228588 | 2009-06-26 01:08:13 +0200 | [diff] [blame] | 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 7 | * copy of this software and associated documentation files (the "Software"), |
| 8 | * to deal in the Software without restriction, including without limitation |
| 9 | * on the rights to use, copy, modify, merge, publish, distribute, sub |
| 10 | * license, and/or sell copies of the Software, and to permit persons to whom |
| 11 | * the Software is furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice (including the next |
| 14 | * paragraph) shall be included in all copies or substantial portions of the |
| 15 | * Software. |
| 16 | * |
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| 20 | * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, |
| 21 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| 22 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| 23 | * USE OR OTHER DEALINGS IN THE SOFTWARE. */ |
| 24 | |
Marek Olšák | 6ba83cd | 2009-12-16 06:07:39 +0100 | [diff] [blame] | 25 | #include "util/u_math.h" |
| 26 | #include "util/u_memory.h" |
| 27 | |
Corbin Simpson | 6a448a5 | 2009-10-21 06:31:36 -0700 | [diff] [blame] | 28 | #include "tgsi/tgsi_dump.h" |
Joakim Sindholt | 6228588 | 2009-06-26 01:08:13 +0200 | [diff] [blame] | 29 | |
Corbin Simpson | 6a448a5 | 2009-10-21 06:31:36 -0700 | [diff] [blame] | 30 | #include "r300_context.h" |
| 31 | #include "r300_screen.h" |
| 32 | #include "r300_fs.h" |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 33 | #include "r300_tgsi_to_rc.h" |
| 34 | |
Corbin Simpson | 6a448a5 | 2009-10-21 06:31:36 -0700 | [diff] [blame] | 35 | #include "radeon_code.h" |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 36 | #include "radeon_compiler.h" |
| 37 | |
Marek Olšák | cb90235 | 2009-11-26 19:37:58 +0100 | [diff] [blame] | 38 | /* Convert info about FS input semantics to r300_shader_semantics. */ |
Marek Olšák | 6ba83cd | 2009-12-16 06:07:39 +0100 | [diff] [blame] | 39 | void r300_shader_read_fs_inputs(struct tgsi_shader_info* info, |
| 40 | struct r300_shader_semantics* fs_inputs) |
Marek Olšák | cb90235 | 2009-11-26 19:37:58 +0100 | [diff] [blame] | 41 | { |
| 42 | int i; |
| 43 | unsigned index; |
| 44 | |
| 45 | r300_shader_semantics_reset(fs_inputs); |
| 46 | |
| 47 | for (i = 0; i < info->num_inputs; i++) { |
| 48 | index = info->input_semantic_index[i]; |
| 49 | |
| 50 | switch (info->input_semantic_name[i]) { |
| 51 | case TGSI_SEMANTIC_COLOR: |
| 52 | assert(index <= ATTR_COLOR_COUNT); |
| 53 | fs_inputs->color[index] = i; |
| 54 | break; |
| 55 | |
| 56 | case TGSI_SEMANTIC_GENERIC: |
| 57 | assert(index <= ATTR_GENERIC_COUNT); |
| 58 | fs_inputs->generic[index] = i; |
| 59 | break; |
| 60 | |
| 61 | case TGSI_SEMANTIC_FOG: |
| 62 | assert(index == 0); |
| 63 | fs_inputs->fog = i; |
| 64 | break; |
| 65 | |
Marek Olšák | bf60eb3 | 2009-12-24 03:10:33 +0100 | [diff] [blame] | 66 | case TGSI_SEMANTIC_POSITION: |
| 67 | assert(index == 0); |
| 68 | fs_inputs->wpos = i; |
| 69 | break; |
| 70 | |
Marek Olšák | cb90235 | 2009-11-26 19:37:58 +0100 | [diff] [blame] | 71 | default: |
| 72 | assert(0); |
| 73 | } |
| 74 | } |
| 75 | } |
| 76 | |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 77 | static void find_output_registers(struct r300_fragment_program_compiler * compiler, |
| 78 | struct r300_fragment_shader * fs) |
Joakim Sindholt | 6228588 | 2009-06-26 01:08:13 +0200 | [diff] [blame] | 79 | { |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 80 | unsigned i; |
| 81 | |
| 82 | /* Mark the outputs as not present initially */ |
| 83 | compiler->OutputColor = fs->info.num_outputs; |
| 84 | compiler->OutputDepth = fs->info.num_outputs; |
| 85 | |
| 86 | /* Now see where they really are. */ |
| 87 | for(i = 0; i < fs->info.num_outputs; ++i) { |
| 88 | switch(fs->info.output_semantic_name[i]) { |
| 89 | case TGSI_SEMANTIC_COLOR: |
| 90 | compiler->OutputColor = i; |
| 91 | break; |
| 92 | case TGSI_SEMANTIC_POSITION: |
| 93 | compiler->OutputDepth = i; |
| 94 | break; |
| 95 | } |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | static void allocate_hardware_inputs( |
| 100 | struct r300_fragment_program_compiler * c, |
| 101 | void (*allocate)(void * data, unsigned input, unsigned hwreg), |
| 102 | void * mydata) |
| 103 | { |
Marek Olšák | f55c088 | 2009-11-27 06:36:31 +0100 | [diff] [blame] | 104 | struct r300_shader_semantics* inputs = |
Marek Olšák | 6ba83cd | 2009-12-16 06:07:39 +0100 | [diff] [blame] | 105 | (struct r300_shader_semantics*)c->UserData; |
Marek Olšák | f55c088 | 2009-11-27 06:36:31 +0100 | [diff] [blame] | 106 | int i, reg = 0; |
Joakim Sindholt | 6228588 | 2009-06-26 01:08:13 +0200 | [diff] [blame] | 107 | |
Marek Olšák | f55c088 | 2009-11-27 06:36:31 +0100 | [diff] [blame] | 108 | /* Allocate input registers. */ |
| 109 | for (i = 0; i < ATTR_COLOR_COUNT; i++) { |
| 110 | if (inputs->color[i] != ATTR_UNUSED) { |
| 111 | allocate(mydata, inputs->color[i], reg++); |
Joakim Sindholt | 6228588 | 2009-06-26 01:08:13 +0200 | [diff] [blame] | 112 | } |
| 113 | } |
Marek Olšák | f55c088 | 2009-11-27 06:36:31 +0100 | [diff] [blame] | 114 | for (i = 0; i < ATTR_GENERIC_COUNT; i++) { |
| 115 | if (inputs->generic[i] != ATTR_UNUSED) { |
| 116 | allocate(mydata, inputs->generic[i], reg++); |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 117 | } |
| 118 | } |
Marek Olšák | f55c088 | 2009-11-27 06:36:31 +0100 | [diff] [blame] | 119 | if (inputs->fog != ATTR_UNUSED) { |
| 120 | allocate(mydata, inputs->fog, reg++); |
| 121 | } |
Marek Olšák | bf60eb3 | 2009-12-24 03:10:33 +0100 | [diff] [blame] | 122 | if (inputs->wpos != ATTR_UNUSED) { |
| 123 | allocate(mydata, inputs->wpos, reg++); |
| 124 | } |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 125 | } |
Joakim Sindholt | 6228588 | 2009-06-26 01:08:13 +0200 | [diff] [blame] | 126 | |
Marek Olšák | 6ba83cd | 2009-12-16 06:07:39 +0100 | [diff] [blame] | 127 | static void get_compare_state( |
| 128 | struct r300_context* r300, |
| 129 | struct r300_fragment_program_external_state* state, |
| 130 | unsigned shadow_samplers) |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 131 | { |
Marek Olšák | 6ba83cd | 2009-12-16 06:07:39 +0100 | [diff] [blame] | 132 | memset(state, 0, sizeof(*state)); |
| 133 | |
| 134 | for (int i = 0; i < r300->sampler_count; i++) { |
| 135 | struct r300_sampler_state* s = r300->sampler_states[i]; |
| 136 | |
| 137 | if (s && s->state.compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) { |
| 138 | /* XXX Gallium doesn't provide us with any information regarding |
| 139 | * this mode, so we are screwed. I'm setting 0 = LUMINANCE. */ |
| 140 | state->unit[i].depth_texture_mode = 0; |
| 141 | |
| 142 | /* Fortunately, no need to translate this. */ |
| 143 | state->unit[i].texture_compare_func = s->state.compare_func; |
| 144 | } |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | static void r300_translate_fragment_shader( |
| 149 | struct r300_context* r300, |
| 150 | struct r300_fragment_shader_code* shader) |
| 151 | { |
| 152 | struct r300_fragment_shader* fs = r300->fs; |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 153 | struct r300_fragment_program_compiler compiler; |
| 154 | struct tgsi_to_rc ttr; |
Marek Olšák | bf60eb3 | 2009-12-24 03:10:33 +0100 | [diff] [blame] | 155 | int wpos = fs->inputs.wpos; |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 156 | |
Marek Olšák | cb90235 | 2009-11-26 19:37:58 +0100 | [diff] [blame] | 157 | /* Setup the compiler. */ |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 158 | memset(&compiler, 0, sizeof(compiler)); |
| 159 | rc_init(&compiler.Base); |
Nicolai Hähnle | 4b01e6f | 2009-09-06 15:03:51 +0200 | [diff] [blame] | 160 | compiler.Base.Debug = DBG_ON(r300, DBG_FP); |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 161 | |
Marek Olšák | 6ba83cd | 2009-12-16 06:07:39 +0100 | [diff] [blame] | 162 | compiler.code = &shader->code; |
| 163 | compiler.state = shader->compare_state; |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 164 | compiler.is_r500 = r300_screen(r300->context.screen)->caps->is_r500; |
| 165 | compiler.AllocateHwInputs = &allocate_hardware_inputs; |
Marek Olšák | 6ba83cd | 2009-12-16 06:07:39 +0100 | [diff] [blame] | 166 | compiler.UserData = &fs->inputs; |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 167 | |
| 168 | find_output_registers(&compiler, fs); |
| 169 | |
| 170 | if (compiler.Base.Debug) { |
Cooper Yuan | 2cbd3fc | 2009-08-11 14:39:58 +0800 | [diff] [blame] | 171 | debug_printf("r300: Initial fragment program\n"); |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 172 | tgsi_dump(fs->state.tokens, 0); |
Joakim Sindholt | 6228588 | 2009-06-26 01:08:13 +0200 | [diff] [blame] | 173 | } |
| 174 | |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 175 | /* Translate TGSI to our internal representation */ |
| 176 | ttr.compiler = &compiler.Base; |
| 177 | ttr.info = &fs->info; |
Joakim Sindholt | 6228588 | 2009-06-26 01:08:13 +0200 | [diff] [blame] | 178 | |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 179 | r300_tgsi_to_rc(&ttr, fs->state.tokens); |
| 180 | |
Marek Olšák | 6ba83cd | 2009-12-16 06:07:39 +0100 | [diff] [blame] | 181 | fs->shadow_samplers = compiler.Base.Program.ShadowSamplers; |
| 182 | |
Marek Olšák | bf60eb3 | 2009-12-24 03:10:33 +0100 | [diff] [blame] | 183 | /** |
| 184 | * Transform the program to support WPOS. |
| 185 | * |
| 186 | * Introduce a small fragment at the start of the program that will be |
| 187 | * the only code that directly reads the WPOS input. |
| 188 | * All other code pieces that reference that input will be rewritten |
| 189 | * to read from a newly allocated temporary. */ |
| 190 | if (wpos != ATTR_UNUSED) { |
| 191 | /* Moving the input to some other reg is not really necessary. */ |
| 192 | rc_transform_fragment_wpos(&compiler.Base, wpos, wpos, TRUE); |
| 193 | } |
| 194 | |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 195 | /* Invoke the compiler */ |
| 196 | r3xx_compile_fragment_program(&compiler); |
| 197 | if (compiler.Base.Error) { |
Corbin Simpson | 40247d8 | 2009-10-21 22:53:37 -0700 | [diff] [blame] | 198 | /* XXX failover maybe? */ |
| 199 | DBG(r300, DBG_FP, "r300: Error compiling fragment program: %s\n", |
| 200 | compiler.Base.ErrorMsg); |
Marek Olšák | cb90235 | 2009-11-26 19:37:58 +0100 | [diff] [blame] | 201 | assert(0); |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 202 | } |
Corbin Simpson | 07961bb | 2009-07-22 23:58:35 -0700 | [diff] [blame] | 203 | |
| 204 | /* And, finally... */ |
Nicolai Hähnle | d0c398a | 2009-07-30 23:45:34 +0200 | [diff] [blame] | 205 | rc_destroy(&compiler.Base); |
Marek Olšák | 6ba83cd | 2009-12-16 06:07:39 +0100 | [diff] [blame] | 206 | } |
| 207 | |
| 208 | boolean r300_pick_fragment_shader(struct r300_context* r300) |
| 209 | { |
| 210 | struct r300_fragment_shader* fs = r300->fs; |
| 211 | struct r300_fragment_program_external_state state; |
| 212 | struct r300_fragment_shader_code* ptr; |
| 213 | |
| 214 | if (!fs->first) { |
| 215 | /* Build the fragment shader for the first time. */ |
| 216 | fs->first = fs->shader = CALLOC_STRUCT(r300_fragment_shader_code); |
| 217 | |
| 218 | /* BTW shadow samplers will be known after the first translation, |
| 219 | * therefore we set ~0, which means it should look at all sampler |
| 220 | * states. This choice doesn't have any impact on the correctness. */ |
| 221 | get_compare_state(r300, &fs->shader->compare_state, ~0); |
| 222 | r300_translate_fragment_shader(r300, fs->shader); |
| 223 | return TRUE; |
| 224 | |
| 225 | } else if (fs->shadow_samplers) { |
| 226 | get_compare_state(r300, &state, fs->shadow_samplers); |
| 227 | |
| 228 | /* Check if the currently-bound shader has been compiled |
| 229 | * with the texture-compare state we need. */ |
| 230 | if (memcmp(&fs->shader->compare_state, &state, sizeof(state)) != 0) { |
| 231 | /* Search for the right shader. */ |
| 232 | ptr = fs->first; |
| 233 | while (ptr) { |
| 234 | if (memcmp(&ptr->compare_state, &state, sizeof(state)) == 0) { |
| 235 | fs->shader = ptr; |
| 236 | return TRUE; |
| 237 | } |
| 238 | ptr = ptr->next; |
| 239 | } |
| 240 | |
| 241 | /* Not found, gotta compile a new one. */ |
| 242 | ptr = CALLOC_STRUCT(r300_fragment_shader_code); |
| 243 | ptr->next = fs->first; |
| 244 | fs->first = fs->shader = ptr; |
| 245 | |
| 246 | ptr->compare_state = state; |
| 247 | r300_translate_fragment_shader(r300, ptr); |
| 248 | return TRUE; |
| 249 | } |
| 250 | } |
| 251 | |
| 252 | return FALSE; |
Joakim Sindholt | 6228588 | 2009-06-26 01:08:13 +0200 | [diff] [blame] | 253 | } |