Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 3770 | Serge | 1 | /************************************************************************** |
| 2 | * |
||
| 3 | * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. |
||
| 4 | * All Rights Reserved. |
||
| 5 | * |
||
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
||
| 7 | * copy of this software and associated documentation files (the |
||
| 8 | * "Software"), to deal in the Software without restriction, including |
||
| 9 | * without limitation the rights to use, copy, modify, merge, publish, |
||
| 10 | * distribute, sub license, and/or sell copies of the Software, and to |
||
| 11 | * permit persons to whom the Software is furnished to do so, subject to |
||
| 12 | * the following conditions: |
||
| 13 | * |
||
| 14 | * The above copyright notice and this permission notice (including the |
||
| 15 | * next paragraph) shall be included in all copies or substantial portions |
||
| 16 | * of the Software. |
||
| 17 | * |
||
| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
||
| 19 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
||
| 20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
||
| 21 | * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR |
||
| 22 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
||
| 23 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
||
| 24 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
||
| 25 | * |
||
| 26 | **************************************************************************/ |
||
| 27 | |||
| 28 | /** |
||
| 29 | * @file |
||
| 30 | * Functions to produce packed colors/Z from floats. |
||
| 31 | */ |
||
| 32 | |||
| 33 | |||
| 34 | #ifndef U_PACK_COLOR_H |
||
| 35 | #define U_PACK_COLOR_H |
||
| 36 | |||
| 37 | |||
| 38 | #include "pipe/p_compiler.h" |
||
| 39 | #include "pipe/p_format.h" |
||
| 40 | #include "util/u_debug.h" |
||
| 41 | #include "util/u_format.h" |
||
| 42 | #include "util/u_math.h" |
||
| 43 | |||
| 44 | |||
| 45 | /** |
||
| 46 | * Helper union for packing pixel values. |
||
| 47 | * Will often contain values in formats which are too complex to be described |
||
| 48 | * in simple terms, hence might just effectively contain a number of bytes. |
||
| 49 | * Must be big enough to hold data for all formats (currently 256 bits). |
||
| 50 | */ |
||
| 51 | union util_color { |
||
| 52 | ubyte ub; |
||
| 53 | ushort us; |
||
| 54 | uint ui; |
||
| 55 | ushort h[4]; /* half float */ |
||
| 56 | float f[4]; |
||
| 57 | double d[4]; |
||
| 58 | }; |
||
| 59 | |||
| 60 | /** |
||
| 61 | * Pack ubyte R,G,B,A into dest pixel. |
||
| 62 | */ |
||
| 63 | static INLINE void |
||
| 64 | util_pack_color_ub(ubyte r, ubyte g, ubyte b, ubyte a, |
||
| 65 | enum pipe_format format, union util_color *uc) |
||
| 66 | { |
||
| 67 | switch (format) { |
||
| 68 | case PIPE_FORMAT_ABGR8888_UNORM: |
||
| 69 | { |
||
| 70 | uc->ui = (r << 24) | (g << 16) | (b << 8) | a; |
||
| 71 | } |
||
| 72 | return; |
||
| 73 | case PIPE_FORMAT_XBGR8888_UNORM: |
||
| 74 | { |
||
| 75 | uc->ui = (r << 24) | (g << 16) | (b << 8) | 0xff; |
||
| 76 | } |
||
| 77 | return; |
||
| 78 | case PIPE_FORMAT_BGRA8888_UNORM: |
||
| 79 | { |
||
| 80 | uc->ui = (a << 24) | (r << 16) | (g << 8) | b; |
||
| 81 | } |
||
| 82 | return; |
||
| 83 | case PIPE_FORMAT_BGRX8888_UNORM: |
||
| 84 | { |
||
| 85 | uc->ui = (0xff << 24) | (r << 16) | (g << 8) | b; |
||
| 86 | } |
||
| 87 | return; |
||
| 88 | case PIPE_FORMAT_ARGB8888_UNORM: |
||
| 89 | { |
||
| 90 | uc->ui = (b << 24) | (g << 16) | (r << 8) | a; |
||
| 91 | } |
||
| 92 | return; |
||
| 93 | case PIPE_FORMAT_XRGB8888_UNORM: |
||
| 94 | { |
||
| 95 | uc->ui = (b << 24) | (g << 16) | (r << 8) | 0xff; |
||
| 96 | } |
||
| 97 | return; |
||
| 98 | case PIPE_FORMAT_B5G6R5_UNORM: |
||
| 99 | { |
||
| 100 | uc->us = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | (b >> 3); |
||
| 101 | } |
||
| 102 | return; |
||
| 103 | case PIPE_FORMAT_B5G5R5X1_UNORM: |
||
| 104 | { |
||
| 105 | uc->us = ((0x80) << 8) | ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | (b >> 3); |
||
| 106 | } |
||
| 107 | return; |
||
| 108 | case PIPE_FORMAT_B5G5R5A1_UNORM: |
||
| 109 | { |
||
| 110 | uc->us = ((a & 0x80) << 8) | ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | (b >> 3); |
||
| 111 | } |
||
| 112 | return; |
||
| 113 | case PIPE_FORMAT_B4G4R4A4_UNORM: |
||
| 114 | { |
||
| 115 | uc->us = ((a & 0xf0) << 8) | ((r & 0xf0) << 4) | ((g & 0xf0) << 0) | (b >> 4); |
||
| 116 | } |
||
| 117 | return; |
||
| 118 | case PIPE_FORMAT_A8_UNORM: |
||
| 119 | { |
||
| 120 | uc->ub = a; |
||
| 121 | } |
||
| 122 | return; |
||
| 123 | case PIPE_FORMAT_L8_UNORM: |
||
| 124 | case PIPE_FORMAT_I8_UNORM: |
||
| 125 | { |
||
| 126 | uc->ub = r; |
||
| 127 | } |
||
| 128 | return; |
||
| 129 | case PIPE_FORMAT_R32G32B32A32_FLOAT: |
||
| 130 | { |
||
| 131 | uc->f[0] = (float)r / 255.0f; |
||
| 132 | uc->f[1] = (float)g / 255.0f; |
||
| 133 | uc->f[2] = (float)b / 255.0f; |
||
| 134 | uc->f[3] = (float)a / 255.0f; |
||
| 135 | } |
||
| 136 | return; |
||
| 137 | case PIPE_FORMAT_R32G32B32_FLOAT: |
||
| 138 | { |
||
| 139 | uc->f[0] = (float)r / 255.0f; |
||
| 140 | uc->f[1] = (float)g / 255.0f; |
||
| 141 | uc->f[2] = (float)b / 255.0f; |
||
| 142 | } |
||
| 143 | return; |
||
| 144 | |||
| 145 | /* Handle other cases with a generic function. |
||
| 146 | */ |
||
| 147 | default: |
||
| 148 | { |
||
| 149 | ubyte src[4]; |
||
| 150 | |||
| 151 | src[0] = r; |
||
| 152 | src[1] = g; |
||
| 153 | src[2] = b; |
||
| 154 | src[3] = a; |
||
| 155 | util_format_write_4ub(format, src, 0, uc, 0, 0, 0, 1, 1); |
||
| 156 | } |
||
| 157 | } |
||
| 158 | } |
||
| 159 | |||
| 160 | |||
| 161 | /** |
||
| 162 | * Unpack RGBA from a packed pixel, returning values as ubytes in [0,255]. |
||
| 163 | */ |
||
| 164 | static INLINE void |
||
| 165 | util_unpack_color_ub(enum pipe_format format, union util_color *uc, |
||
| 166 | ubyte *r, ubyte *g, ubyte *b, ubyte *a) |
||
| 167 | { |
||
| 168 | switch (format) { |
||
| 169 | case PIPE_FORMAT_ABGR8888_UNORM: |
||
| 170 | { |
||
| 171 | uint p = uc->ui; |
||
| 172 | *r = (ubyte) ((p >> 24) & 0xff); |
||
| 173 | *g = (ubyte) ((p >> 16) & 0xff); |
||
| 174 | *b = (ubyte) ((p >> 8) & 0xff); |
||
| 175 | *a = (ubyte) ((p >> 0) & 0xff); |
||
| 176 | } |
||
| 177 | return; |
||
| 178 | case PIPE_FORMAT_XBGR8888_UNORM: |
||
| 179 | { |
||
| 180 | uint p = uc->ui; |
||
| 181 | *r = (ubyte) ((p >> 24) & 0xff); |
||
| 182 | *g = (ubyte) ((p >> 16) & 0xff); |
||
| 183 | *b = (ubyte) ((p >> 8) & 0xff); |
||
| 184 | *a = (ubyte) 0xff; |
||
| 185 | } |
||
| 186 | return; |
||
| 187 | case PIPE_FORMAT_BGRA8888_UNORM: |
||
| 188 | { |
||
| 189 | uint p = uc->ui; |
||
| 190 | *r = (ubyte) ((p >> 16) & 0xff); |
||
| 191 | *g = (ubyte) ((p >> 8) & 0xff); |
||
| 192 | *b = (ubyte) ((p >> 0) & 0xff); |
||
| 193 | *a = (ubyte) ((p >> 24) & 0xff); |
||
| 194 | } |
||
| 195 | return; |
||
| 196 | case PIPE_FORMAT_BGRX8888_UNORM: |
||
| 197 | { |
||
| 198 | uint p = uc->ui; |
||
| 199 | *r = (ubyte) ((p >> 16) & 0xff); |
||
| 200 | *g = (ubyte) ((p >> 8) & 0xff); |
||
| 201 | *b = (ubyte) ((p >> 0) & 0xff); |
||
| 202 | *a = (ubyte) 0xff; |
||
| 203 | } |
||
| 204 | return; |
||
| 205 | case PIPE_FORMAT_ARGB8888_UNORM: |
||
| 206 | { |
||
| 207 | uint p = uc->ui; |
||
| 208 | *r = (ubyte) ((p >> 8) & 0xff); |
||
| 209 | *g = (ubyte) ((p >> 16) & 0xff); |
||
| 210 | *b = (ubyte) ((p >> 24) & 0xff); |
||
| 211 | *a = (ubyte) ((p >> 0) & 0xff); |
||
| 212 | } |
||
| 213 | return; |
||
| 214 | case PIPE_FORMAT_XRGB8888_UNORM: |
||
| 215 | { |
||
| 216 | uint p = uc->ui; |
||
| 217 | *r = (ubyte) ((p >> 8) & 0xff); |
||
| 218 | *g = (ubyte) ((p >> 16) & 0xff); |
||
| 219 | *b = (ubyte) ((p >> 24) & 0xff); |
||
| 220 | *a = (ubyte) 0xff; |
||
| 221 | } |
||
| 222 | return; |
||
| 223 | case PIPE_FORMAT_B5G6R5_UNORM: |
||
| 224 | { |
||
| 225 | ushort p = uc->us; |
||
| 226 | *r = (ubyte) (((p >> 8) & 0xf8) | ((p >> 13) & 0x7)); |
||
| 227 | *g = (ubyte) (((p >> 3) & 0xfc) | ((p >> 9) & 0x3)); |
||
| 228 | *b = (ubyte) (((p << 3) & 0xf8) | ((p >> 2) & 0x7)); |
||
| 229 | *a = (ubyte) 0xff; |
||
| 230 | } |
||
| 231 | return; |
||
| 232 | case PIPE_FORMAT_B5G5R5X1_UNORM: |
||
| 233 | { |
||
| 234 | ushort p = uc->us; |
||
| 235 | *r = (ubyte) (((p >> 7) & 0xf8) | ((p >> 12) & 0x7)); |
||
| 236 | *g = (ubyte) (((p >> 2) & 0xf8) | ((p >> 7) & 0x7)); |
||
| 237 | *b = (ubyte) (((p << 3) & 0xf8) | ((p >> 2) & 0x7)); |
||
| 238 | *a = (ubyte) 0xff; |
||
| 239 | } |
||
| 240 | return; |
||
| 241 | case PIPE_FORMAT_B5G5R5A1_UNORM: |
||
| 242 | { |
||
| 243 | ushort p = uc->us; |
||
| 244 | *r = (ubyte) (((p >> 7) & 0xf8) | ((p >> 12) & 0x7)); |
||
| 245 | *g = (ubyte) (((p >> 2) & 0xf8) | ((p >> 7) & 0x7)); |
||
| 246 | *b = (ubyte) (((p << 3) & 0xf8) | ((p >> 2) & 0x7)); |
||
| 247 | *a = (ubyte) (0xff * (p >> 15)); |
||
| 248 | } |
||
| 249 | return; |
||
| 250 | case PIPE_FORMAT_B4G4R4A4_UNORM: |
||
| 251 | { |
||
| 252 | ushort p = uc->us; |
||
| 253 | *r = (ubyte) (((p >> 4) & 0xf0) | ((p >> 8) & 0xf)); |
||
| 254 | *g = (ubyte) (((p >> 0) & 0xf0) | ((p >> 4) & 0xf)); |
||
| 255 | *b = (ubyte) (((p << 4) & 0xf0) | ((p >> 0) & 0xf)); |
||
| 256 | *a = (ubyte) (((p >> 8) & 0xf0) | ((p >> 12) & 0xf)); |
||
| 257 | } |
||
| 258 | return; |
||
| 259 | case PIPE_FORMAT_A8_UNORM: |
||
| 260 | { |
||
| 261 | ubyte p = uc->ub; |
||
| 262 | *r = *g = *b = (ubyte) 0xff; |
||
| 263 | *a = p; |
||
| 264 | } |
||
| 265 | return; |
||
| 266 | case PIPE_FORMAT_L8_UNORM: |
||
| 267 | { |
||
| 268 | ubyte p = uc->ub; |
||
| 269 | *r = *g = *b = p; |
||
| 270 | *a = (ubyte) 0xff; |
||
| 271 | } |
||
| 272 | return; |
||
| 273 | case PIPE_FORMAT_I8_UNORM: |
||
| 274 | { |
||
| 275 | ubyte p = uc->ub; |
||
| 276 | *r = *g = *b = *a = p; |
||
| 277 | } |
||
| 278 | return; |
||
| 279 | case PIPE_FORMAT_R32G32B32A32_FLOAT: |
||
| 280 | { |
||
| 281 | const float *p = &uc->f[0]; |
||
| 282 | *r = float_to_ubyte(p[0]); |
||
| 283 | *g = float_to_ubyte(p[1]); |
||
| 284 | *b = float_to_ubyte(p[2]); |
||
| 285 | *a = float_to_ubyte(p[3]); |
||
| 286 | } |
||
| 287 | return; |
||
| 288 | case PIPE_FORMAT_R32G32B32_FLOAT: |
||
| 289 | { |
||
| 290 | const float *p = &uc->f[0]; |
||
| 291 | *r = float_to_ubyte(p[0]); |
||
| 292 | *g = float_to_ubyte(p[1]); |
||
| 293 | *b = float_to_ubyte(p[2]); |
||
| 294 | *a = (ubyte) 0xff; |
||
| 295 | } |
||
| 296 | return; |
||
| 297 | |||
| 298 | case PIPE_FORMAT_R32G32_FLOAT: |
||
| 299 | { |
||
| 300 | const float *p = &uc->f[0]; |
||
| 301 | *r = float_to_ubyte(p[0]); |
||
| 302 | *g = float_to_ubyte(p[1]); |
||
| 303 | *b = *a = (ubyte) 0xff; |
||
| 304 | } |
||
| 305 | return; |
||
| 306 | |||
| 307 | case PIPE_FORMAT_R32_FLOAT: |
||
| 308 | { |
||
| 309 | const float *p = &uc->f[0]; |
||
| 310 | *r = float_to_ubyte(p[0]); |
||
| 311 | *g = *b = *a = (ubyte) 0xff; |
||
| 312 | } |
||
| 313 | return; |
||
| 314 | |||
| 315 | /* Handle other cases with a generic function. |
||
| 316 | */ |
||
| 317 | default: |
||
| 318 | { |
||
| 319 | ubyte dst[4]; |
||
| 320 | |||
| 321 | util_format_read_4ub(format, dst, 0, uc, 0, 0, 0, 1, 1); |
||
| 322 | *r = dst[0]; |
||
| 323 | *g = dst[1]; |
||
| 324 | *b = dst[2]; |
||
| 325 | *a = dst[3]; |
||
| 326 | } |
||
| 327 | } |
||
| 328 | } |
||
| 329 | |||
| 330 | |||
| 331 | /** |
||
| 332 | * Note rgba outside [0,1] will be clamped for int pixel formats. |
||
| 333 | * This will not work (and might not really be useful with float input) |
||
| 334 | * for pure integer formats (which lack the pack_rgba_float function). |
||
| 335 | */ |
||
| 336 | static INLINE void |
||
| 337 | util_pack_color(const float rgba[4], enum pipe_format format, union util_color *uc) |
||
| 338 | { |
||
| 339 | ubyte r = 0; |
||
| 340 | ubyte g = 0; |
||
| 341 | ubyte b = 0; |
||
| 342 | ubyte a = 0; |
||
| 343 | |||
| 344 | if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 0) <= 8) { |
||
| 345 | /* format uses 8-bit components or less */ |
||
| 346 | r = float_to_ubyte(rgba[0]); |
||
| 347 | g = float_to_ubyte(rgba[1]); |
||
| 348 | b = float_to_ubyte(rgba[2]); |
||
| 349 | a = float_to_ubyte(rgba[3]); |
||
| 350 | } |
||
| 351 | |||
| 352 | switch (format) { |
||
| 353 | case PIPE_FORMAT_ABGR8888_UNORM: |
||
| 354 | { |
||
| 355 | uc->ui = (r << 24) | (g << 16) | (b << 8) | a; |
||
| 356 | } |
||
| 357 | return; |
||
| 358 | case PIPE_FORMAT_XBGR8888_UNORM: |
||
| 359 | { |
||
| 360 | uc->ui = (r << 24) | (g << 16) | (b << 8) | 0xff; |
||
| 361 | } |
||
| 362 | return; |
||
| 363 | case PIPE_FORMAT_BGRA8888_UNORM: |
||
| 364 | { |
||
| 365 | uc->ui = (a << 24) | (r << 16) | (g << 8) | b; |
||
| 366 | } |
||
| 367 | return; |
||
| 368 | case PIPE_FORMAT_BGRX8888_UNORM: |
||
| 369 | { |
||
| 370 | uc->ui = (0xff << 24) | (r << 16) | (g << 8) | b; |
||
| 371 | } |
||
| 372 | return; |
||
| 373 | case PIPE_FORMAT_ARGB8888_UNORM: |
||
| 374 | { |
||
| 375 | uc->ui = (b << 24) | (g << 16) | (r << 8) | a; |
||
| 376 | } |
||
| 377 | return; |
||
| 378 | case PIPE_FORMAT_XRGB8888_UNORM: |
||
| 379 | { |
||
| 380 | uc->ui = (b << 24) | (g << 16) | (r << 8) | 0xff; |
||
| 381 | } |
||
| 382 | return; |
||
| 383 | case PIPE_FORMAT_B5G6R5_UNORM: |
||
| 384 | { |
||
| 385 | uc->us = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | (b >> 3); |
||
| 386 | } |
||
| 387 | return; |
||
| 388 | case PIPE_FORMAT_B5G5R5X1_UNORM: |
||
| 389 | { |
||
| 390 | uc->us = ((0x80) << 8) | ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | (b >> 3); |
||
| 391 | } |
||
| 392 | return; |
||
| 393 | case PIPE_FORMAT_B5G5R5A1_UNORM: |
||
| 394 | { |
||
| 395 | uc->us = ((a & 0x80) << 8) | ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | (b >> 3); |
||
| 396 | } |
||
| 397 | return; |
||
| 398 | case PIPE_FORMAT_B4G4R4A4_UNORM: |
||
| 399 | { |
||
| 400 | uc->us = ((a & 0xf0) << 8) | ((r & 0xf0) << 4) | ((g & 0xf0) << 0) | (b >> 4); |
||
| 401 | } |
||
| 402 | return; |
||
| 403 | case PIPE_FORMAT_A8_UNORM: |
||
| 404 | { |
||
| 405 | uc->ub = a; |
||
| 406 | } |
||
| 407 | return; |
||
| 408 | case PIPE_FORMAT_L8_UNORM: |
||
| 409 | case PIPE_FORMAT_I8_UNORM: |
||
| 410 | { |
||
| 411 | uc->ub = r; |
||
| 412 | } |
||
| 413 | return; |
||
| 414 | case PIPE_FORMAT_R32G32B32A32_FLOAT: |
||
| 415 | { |
||
| 416 | uc->f[0] = rgba[0]; |
||
| 417 | uc->f[1] = rgba[1]; |
||
| 418 | uc->f[2] = rgba[2]; |
||
| 419 | uc->f[3] = rgba[3]; |
||
| 420 | } |
||
| 421 | return; |
||
| 422 | case PIPE_FORMAT_R32G32B32_FLOAT: |
||
| 423 | { |
||
| 424 | uc->f[0] = rgba[0]; |
||
| 425 | uc->f[1] = rgba[1]; |
||
| 426 | uc->f[2] = rgba[2]; |
||
| 427 | } |
||
| 428 | return; |
||
| 429 | |||
| 430 | /* Handle other cases with a generic function. |
||
| 431 | */ |
||
| 432 | default: |
||
| 433 | util_format_write_4f(format, rgba, 0, uc, 0, 0, 0, 1, 1); |
||
| 434 | } |
||
| 435 | } |
||
| 436 | |||
| 437 | /* Integer versions of util_pack_z and util_pack_z_stencil - useful for |
||
| 438 | * constructing clear masks. |
||
| 439 | */ |
||
| 440 | static INLINE uint32_t |
||
| 441 | util_pack_mask_z(enum pipe_format format, uint32_t z) |
||
| 442 | { |
||
| 443 | switch (format) { |
||
| 444 | case PIPE_FORMAT_Z16_UNORM: |
||
| 445 | return z & 0xffff; |
||
| 446 | case PIPE_FORMAT_Z32_UNORM: |
||
| 447 | case PIPE_FORMAT_Z32_FLOAT: |
||
| 448 | return z; |
||
| 449 | case PIPE_FORMAT_Z24_UNORM_S8_UINT: |
||
| 450 | case PIPE_FORMAT_Z24X8_UNORM: |
||
| 451 | return z & 0xffffff; |
||
| 452 | case PIPE_FORMAT_S8_UINT_Z24_UNORM: |
||
| 453 | case PIPE_FORMAT_X8Z24_UNORM: |
||
| 454 | return (z & 0xffffff) << 8; |
||
| 455 | case PIPE_FORMAT_S8_UINT: |
||
| 456 | return 0; |
||
| 457 | default: |
||
| 458 | debug_print_format("gallium: unhandled format in util_pack_mask_z()", format); |
||
| 459 | assert(0); |
||
| 460 | return 0; |
||
| 461 | } |
||
| 462 | } |
||
| 463 | |||
| 464 | |||
| 465 | static INLINE uint64_t |
||
| 466 | util_pack64_mask_z(enum pipe_format format, uint32_t z) |
||
| 467 | { |
||
| 468 | switch (format) { |
||
| 469 | case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT: |
||
| 470 | return z; |
||
| 471 | default: |
||
| 472 | return util_pack_mask_z(format, z); |
||
| 473 | } |
||
| 474 | } |
||
| 475 | |||
| 476 | |||
| 477 | static INLINE uint32_t |
||
| 478 | util_pack_mask_z_stencil(enum pipe_format format, uint32_t z, uint8_t s) |
||
| 479 | { |
||
| 480 | uint32_t packed = util_pack_mask_z(format, z); |
||
| 481 | |||
| 482 | switch (format) { |
||
| 483 | case PIPE_FORMAT_Z24_UNORM_S8_UINT: |
||
| 484 | packed |= (uint32_t)s << 24; |
||
| 485 | break; |
||
| 486 | case PIPE_FORMAT_S8_UINT_Z24_UNORM: |
||
| 487 | packed |= s; |
||
| 488 | break; |
||
| 489 | case PIPE_FORMAT_S8_UINT: |
||
| 490 | packed |= s; |
||
| 491 | break; |
||
| 492 | default: |
||
| 493 | break; |
||
| 494 | } |
||
| 495 | |||
| 496 | return packed; |
||
| 497 | } |
||
| 498 | |||
| 499 | |||
| 500 | static INLINE uint64_t |
||
| 501 | util_pack64_mask_z_stencil(enum pipe_format format, uint32_t z, uint8_t s) |
||
| 502 | { |
||
| 503 | uint64_t packed; |
||
| 504 | |||
| 505 | switch (format) { |
||
| 506 | case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT: |
||
| 507 | packed = util_pack64_mask_z(format, z); |
||
| 508 | packed |= (uint64_t)s << 32ull; |
||
| 509 | return packed; |
||
| 510 | default: |
||
| 511 | return util_pack_mask_z_stencil(format, z, s); |
||
| 512 | } |
||
| 513 | } |
||
| 514 | |||
| 515 | |||
| 516 | /** |
||
| 517 | * Note: it's assumed that z is in [0,1] |
||
| 518 | */ |
||
| 519 | static INLINE uint32_t |
||
| 520 | util_pack_z(enum pipe_format format, double z) |
||
| 521 | { |
||
| 522 | union fi fui; |
||
| 523 | |||
| 524 | if (z == 0.0) |
||
| 525 | return 0; |
||
| 526 | |||
| 527 | switch (format) { |
||
| 528 | case PIPE_FORMAT_Z16_UNORM: |
||
| 529 | if (z == 1.0) |
||
| 530 | return 0xffff; |
||
| 531 | return (uint32_t) (z * 0xffff); |
||
| 532 | case PIPE_FORMAT_Z32_UNORM: |
||
| 533 | /* special-case to avoid overflow */ |
||
| 534 | if (z == 1.0) |
||
| 535 | return 0xffffffff; |
||
| 536 | return (uint32_t) (z * 0xffffffff); |
||
| 537 | case PIPE_FORMAT_Z32_FLOAT: |
||
| 538 | fui.f = (float)z; |
||
| 539 | return fui.ui; |
||
| 540 | case PIPE_FORMAT_Z24_UNORM_S8_UINT: |
||
| 541 | case PIPE_FORMAT_Z24X8_UNORM: |
||
| 542 | if (z == 1.0) |
||
| 543 | return 0xffffff; |
||
| 544 | return (uint32_t) (z * 0xffffff); |
||
| 545 | case PIPE_FORMAT_S8_UINT_Z24_UNORM: |
||
| 546 | case PIPE_FORMAT_X8Z24_UNORM: |
||
| 547 | if (z == 1.0) |
||
| 548 | return 0xffffff00; |
||
| 549 | return ((uint32_t) (z * 0xffffff)) << 8; |
||
| 550 | case PIPE_FORMAT_S8_UINT: |
||
| 551 | /* this case can get it via util_pack_z_stencil() */ |
||
| 552 | return 0; |
||
| 553 | default: |
||
| 554 | debug_print_format("gallium: unhandled format in util_pack_z()", format); |
||
| 555 | assert(0); |
||
| 556 | return 0; |
||
| 557 | } |
||
| 558 | } |
||
| 559 | |||
| 560 | |||
| 561 | static INLINE uint64_t |
||
| 562 | util_pack64_z(enum pipe_format format, double z) |
||
| 563 | { |
||
| 564 | union fi fui; |
||
| 565 | |||
| 566 | if (z == 0) |
||
| 567 | return 0; |
||
| 568 | |||
| 569 | switch (format) { |
||
| 570 | case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT: |
||
| 571 | fui.f = (float)z; |
||
| 572 | return fui.ui; |
||
| 573 | default: |
||
| 574 | return util_pack_z(format, z); |
||
| 575 | } |
||
| 576 | } |
||
| 577 | |||
| 578 | |||
| 579 | /** |
||
| 580 | * Pack Z and/or stencil values into a 32-bit value described by format. |
||
| 581 | * Note: it's assumed that z is in [0,1] and s in [0,255] |
||
| 582 | */ |
||
| 583 | static INLINE uint32_t |
||
| 584 | util_pack_z_stencil(enum pipe_format format, double z, uint8_t s) |
||
| 585 | { |
||
| 586 | uint32_t packed = util_pack_z(format, z); |
||
| 587 | |||
| 588 | switch (format) { |
||
| 589 | case PIPE_FORMAT_Z24_UNORM_S8_UINT: |
||
| 590 | packed |= (uint32_t)s << 24; |
||
| 591 | break; |
||
| 592 | case PIPE_FORMAT_S8_UINT_Z24_UNORM: |
||
| 593 | packed |= s; |
||
| 594 | break; |
||
| 595 | case PIPE_FORMAT_S8_UINT: |
||
| 596 | packed |= s; |
||
| 597 | break; |
||
| 598 | default: |
||
| 599 | break; |
||
| 600 | } |
||
| 601 | |||
| 602 | return packed; |
||
| 603 | } |
||
| 604 | |||
| 605 | |||
| 606 | static INLINE uint64_t |
||
| 607 | util_pack64_z_stencil(enum pipe_format format, double z, uint8_t s) |
||
| 608 | { |
||
| 609 | uint64_t packed; |
||
| 610 | |||
| 611 | switch (format) { |
||
| 612 | case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT: |
||
| 613 | packed = util_pack64_z(format, z); |
||
| 614 | packed |= (uint64_t)s << 32ull; |
||
| 615 | break; |
||
| 616 | default: |
||
| 617 | return util_pack_z_stencil(format, z, s); |
||
| 618 | } |
||
| 619 | |||
| 620 | return packed; |
||
| 621 | } |
||
| 622 | |||
| 623 | |||
| 624 | /** |
||
| 625 | * Pack 4 ubytes into a 4-byte word |
||
| 626 | */ |
||
| 627 | static INLINE unsigned |
||
| 628 | pack_ub4(ubyte b0, ubyte b1, ubyte b2, ubyte b3) |
||
| 629 | { |
||
| 630 | return ((((unsigned int)b0) << 0) | |
||
| 631 | (((unsigned int)b1) << 8) | |
||
| 632 | (((unsigned int)b2) << 16) | |
||
| 633 | (((unsigned int)b3) << 24)); |
||
| 634 | } |
||
| 635 | |||
| 636 | |||
| 637 | /** |
||
| 638 | * Pack/convert 4 floats into one 4-byte word. |
||
| 639 | */ |
||
| 640 | static INLINE unsigned |
||
| 641 | pack_ui32_float4(float a, float b, float c, float d) |
||
| 642 | { |
||
| 643 | return pack_ub4( float_to_ubyte(a), |
||
| 644 | float_to_ubyte(b), |
||
| 645 | float_to_ubyte(c), |
||
| 646 | float_to_ubyte(d) ); |
||
| 647 | } |
||
| 648 | |||
| 649 | |||
| 650 | |||
| 651 | #endif /* U_PACK_COLOR_H */ |