Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4358 | Serge | 1 | /* |
| 2 | * Copyright © 2009 Intel Corporation |
||
| 3 | * |
||
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
||
| 5 | * copy of this software and associated documentation files (the "Software"), |
||
| 6 | * to deal in the Software without restriction, including without limitation |
||
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
||
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
||
| 9 | * Software is furnished to do so, subject to the following conditions: |
||
| 10 | * |
||
| 11 | * The above copyright notice and this permission notice (including the next |
||
| 12 | * paragraph) shall be included in all copies or substantial portions of the |
||
| 13 | * Software. |
||
| 14 | * |
||
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
||
| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
||
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
||
| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
||
| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
||
| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
||
| 21 | * DEALINGS IN THE SOFTWARE. |
||
| 22 | */ |
||
| 23 | |||
| 24 | #include |
||
| 25 | #include "main/mtypes.h" |
||
| 26 | #include "prog_instruction.h" |
||
| 27 | #include "program_parser.h" |
||
| 28 | |||
| 29 | |||
| 30 | /** |
||
| 31 | * Extra assembly-level parser routines |
||
| 32 | * |
||
| 33 | * \author Ian Romanick |
||
| 34 | */ |
||
| 35 | |||
| 36 | int |
||
| 37 | _mesa_parse_instruction_suffix(const struct asm_parser_state *state, |
||
| 38 | const char *suffix, |
||
| 39 | struct prog_instruction *inst) |
||
| 40 | { |
||
| 41 | inst->CondUpdate = 0; |
||
| 42 | inst->CondDst = 0; |
||
| 43 | inst->SaturateMode = SATURATE_OFF; |
||
| 44 | inst->Precision = FLOAT32; |
||
| 45 | |||
| 46 | |||
| 47 | /* The first possible suffix element is the precision specifier from |
||
| 48 | * NV_fragment_program_option. |
||
| 49 | */ |
||
| 50 | if (state->option.NV_fragment) { |
||
| 51 | switch (suffix[0]) { |
||
| 52 | case 'H': |
||
| 53 | inst->Precision = FLOAT16; |
||
| 54 | suffix++; |
||
| 55 | break; |
||
| 56 | case 'R': |
||
| 57 | inst->Precision = FLOAT32; |
||
| 58 | suffix++; |
||
| 59 | break; |
||
| 60 | case 'X': |
||
| 61 | inst->Precision = FIXED12; |
||
| 62 | suffix++; |
||
| 63 | break; |
||
| 64 | default: |
||
| 65 | break; |
||
| 66 | } |
||
| 67 | } |
||
| 68 | |||
| 69 | /* The next possible suffix element is the condition code modifier selection |
||
| 70 | * from NV_fragment_program_option. |
||
| 71 | */ |
||
| 72 | if (state->option.NV_fragment) { |
||
| 73 | if (suffix[0] == 'C') { |
||
| 74 | inst->CondUpdate = 1; |
||
| 75 | suffix++; |
||
| 76 | } |
||
| 77 | } |
||
| 78 | |||
| 79 | |||
| 80 | /* The final possible suffix element is the saturation selector from |
||
| 81 | * ARB_fragment_program. |
||
| 82 | */ |
||
| 83 | if (state->mode == ARB_fragment) { |
||
| 84 | if (strcmp(suffix, "_SAT") == 0) { |
||
| 85 | inst->SaturateMode = SATURATE_ZERO_ONE; |
||
| 86 | suffix += 4; |
||
| 87 | } |
||
| 88 | } |
||
| 89 | |||
| 90 | |||
| 91 | /* It is an error for all of the suffix string not to be consumed. |
||
| 92 | */ |
||
| 93 | return suffix[0] == '\0'; |
||
| 94 | } |
||
| 95 | |||
| 96 | |||
| 97 | int |
||
| 98 | _mesa_parse_cc(const char *s) |
||
| 99 | { |
||
| 100 | int cond = 0; |
||
| 101 | |||
| 102 | switch (s[0]) { |
||
| 103 | case 'E': |
||
| 104 | if (s[1] == 'Q') { |
||
| 105 | cond = COND_EQ; |
||
| 106 | } |
||
| 107 | break; |
||
| 108 | |||
| 109 | case 'F': |
||
| 110 | if (s[1] == 'L') { |
||
| 111 | cond = COND_FL; |
||
| 112 | } |
||
| 113 | break; |
||
| 114 | |||
| 115 | case 'G': |
||
| 116 | if (s[1] == 'E') { |
||
| 117 | cond = COND_GE; |
||
| 118 | } else if (s[1] == 'T') { |
||
| 119 | cond = COND_GT; |
||
| 120 | } |
||
| 121 | break; |
||
| 122 | |||
| 123 | case 'L': |
||
| 124 | if (s[1] == 'E') { |
||
| 125 | cond = COND_LE; |
||
| 126 | } else if (s[1] == 'T') { |
||
| 127 | cond = COND_LT; |
||
| 128 | } |
||
| 129 | break; |
||
| 130 | |||
| 131 | case 'N': |
||
| 132 | if (s[1] == 'E') { |
||
| 133 | cond = COND_NE; |
||
| 134 | } |
||
| 135 | break; |
||
| 136 | |||
| 137 | case 'T': |
||
| 138 | if (s[1] == 'R') { |
||
| 139 | cond = COND_TR; |
||
| 140 | } |
||
| 141 | break; |
||
| 142 | |||
| 143 | default: |
||
| 144 | break; |
||
| 145 | } |
||
| 146 | |||
| 147 | return ((cond == 0) || (s[2] != '\0')) ? 0 : cond; |
||
| 148 | } |
||
| 149 | |||
| 150 | |||
| 151 | int |
||
| 152 | _mesa_ARBvp_parse_option(struct asm_parser_state *state, const char *option) |
||
| 153 | { |
||
| 154 | if (strcmp(option, "ARB_position_invariant") == 0) { |
||
| 155 | state->option.PositionInvariant = 1; |
||
| 156 | return 1; |
||
| 157 | } |
||
| 158 | |||
| 159 | return 0; |
||
| 160 | } |
||
| 161 | |||
| 162 | |||
| 163 | int |
||
| 164 | _mesa_ARBfp_parse_option(struct asm_parser_state *state, const char *option) |
||
| 165 | { |
||
| 166 | /* All of the options currently supported start with "ARB_". The code is |
||
| 167 | * currently structured with nested if-statements because eventually options |
||
| 168 | * that start with "NV_" will be supported. This structure will result in |
||
| 169 | * less churn when those options are added. |
||
| 170 | */ |
||
| 171 | if (strncmp(option, "ARB_", 4) == 0) { |
||
| 172 | /* Advance the pointer past the "ARB_" prefix. |
||
| 173 | */ |
||
| 174 | option += 4; |
||
| 175 | |||
| 176 | |||
| 177 | if (strncmp(option, "fog_", 4) == 0) { |
||
| 178 | option += 4; |
||
| 179 | |||
| 180 | if (state->option.Fog == OPTION_NONE) { |
||
| 181 | if (strcmp(option, "exp") == 0) { |
||
| 182 | state->option.Fog = OPTION_FOG_EXP; |
||
| 183 | return 1; |
||
| 184 | } else if (strcmp(option, "exp2") == 0) { |
||
| 185 | state->option.Fog = OPTION_FOG_EXP2; |
||
| 186 | return 1; |
||
| 187 | } else if (strcmp(option, "linear") == 0) { |
||
| 188 | state->option.Fog = OPTION_FOG_LINEAR; |
||
| 189 | return 1; |
||
| 190 | } |
||
| 191 | } |
||
| 192 | |||
| 193 | return 0; |
||
| 194 | } else if (strncmp(option, "precision_hint_", 15) == 0) { |
||
| 195 | option += 15; |
||
| 196 | |||
| 197 | /* The ARB_fragment_program spec, 3.11.4.5.2 says: |
||
| 198 | * |
||
| 199 | * "Only one precision control option may be specified by any given |
||
| 200 | * fragment program. A fragment program that specifies both the |
||
| 201 | * "ARB_precision_hint_fastest" and "ARB_precision_hint_nicest" |
||
| 202 | * program options will fail to load. |
||
| 203 | */ |
||
| 204 | |||
| 205 | if (strcmp(option, "nicest") == 0 && state->option.PrecisionHint != OPTION_FASTEST) { |
||
| 206 | state->option.PrecisionHint = OPTION_NICEST; |
||
| 207 | return 1; |
||
| 208 | } else if (strcmp(option, "fastest") == 0 && state->option.PrecisionHint != OPTION_NICEST) { |
||
| 209 | state->option.PrecisionHint = OPTION_FASTEST; |
||
| 210 | return 1; |
||
| 211 | } |
||
| 212 | |||
| 213 | return 0; |
||
| 214 | } else if (strcmp(option, "draw_buffers") == 0) { |
||
| 215 | /* Don't need to check extension availability because all Mesa-based |
||
| 216 | * drivers support GL_ARB_draw_buffers. |
||
| 217 | */ |
||
| 218 | state->option.DrawBuffers = 1; |
||
| 219 | return 1; |
||
| 220 | } else if (strcmp(option, "fragment_program_shadow") == 0) { |
||
| 221 | if (state->ctx->Extensions.ARB_fragment_program_shadow) { |
||
| 222 | state->option.Shadow = 1; |
||
| 223 | return 1; |
||
| 224 | } |
||
| 225 | } else if (strncmp(option, "fragment_coord_", 15) == 0) { |
||
| 226 | option += 15; |
||
| 227 | if (state->ctx->Extensions.ARB_fragment_coord_conventions) { |
||
| 228 | if (strcmp(option, "origin_upper_left") == 0) { |
||
| 229 | state->option.OriginUpperLeft = 1; |
||
| 230 | return 1; |
||
| 231 | } |
||
| 232 | else if (strcmp(option, "pixel_center_integer") == 0) { |
||
| 233 | state->option.PixelCenterInteger = 1; |
||
| 234 | return 1; |
||
| 235 | } |
||
| 236 | } |
||
| 237 | } |
||
| 238 | } else if (strncmp(option, "ATI_", 4) == 0) { |
||
| 239 | option += 4; |
||
| 240 | |||
| 241 | if (strcmp(option, "draw_buffers") == 0) { |
||
| 242 | /* Don't need to check extension availability because all Mesa-based |
||
| 243 | * drivers support GL_ATI_draw_buffers. |
||
| 244 | */ |
||
| 245 | state->option.DrawBuffers = 1; |
||
| 246 | return 1; |
||
| 247 | } |
||
| 248 | } else if (strncmp(option, "NV_fragment_program", 19) == 0) { |
||
| 249 | option += 19; |
||
| 250 | |||
| 251 | /* Other NV_fragment_program strings may be supported later. |
||
| 252 | */ |
||
| 253 | if (option[0] == '\0') { |
||
| 254 | if (state->ctx->Extensions.NV_fragment_program_option) { |
||
| 255 | state->option.NV_fragment = 1; |
||
| 256 | return 1; |
||
| 257 | } |
||
| 258 | } |
||
| 259 | } else if (strncmp(option, "MESA_", 5) == 0) { |
||
| 260 | option += 5; |
||
| 261 | |||
| 262 | if (strcmp(option, "texture_array") == 0) { |
||
| 263 | if (state->ctx->Extensions.MESA_texture_array) { |
||
| 264 | state->option.TexArray = 1; |
||
| 265 | return 1; |
||
| 266 | } |
||
| 267 | } |
||
| 268 | } |
||
| 269 | |||
| 270 | return 0; |
||
| 271 | } |