src/gallium/drivers/r300/r300_texture.c

   1 /*
   2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
   3  * Copyright 2010 Marek Olšák <maraeo@gmail.com>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * on the rights to use, copy, modify, merge, publish, distribute, sub
   9  * license, and/or sell copies of the Software, and to permit persons to whom
  10  * the Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  22  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  23
  24 /* Always include headers in the reverse order!! ~ M. */
  25 #include "r300_texture.h"
  26
  27 #include "r300_context.h"
  28 #include "r300_reg.h"
  29 #include "r300_texture_desc.h"
  30 #include "r300_transfer.h"
  31 #include "r300_screen.h"
  32 #include "r300_winsys.h"
  33
  34 #include "util/u_format.h"
  35 #include "util/u_format_s3tc.h"
  36 #include "util/u_math.h"
  37 #include "util/u_memory.h"
  38 #include "util/u_mm.h"
  39
  40 #include "pipe/p_screen.h"
  41
  42 unsigned r300_get_swizzle_combined(const unsigned char *swizzle_format,
  43                                    const unsigned char *swizzle_view,
  44                                    boolean dxtc_swizzle)
  45 {
  46     unsigned i;
  47     unsigned char swizzle[4];
  48     unsigned result = 0;
  49     const uint32_t swizzle_shift[4] = {
  50         R300_TX_FORMAT_R_SHIFT,
  51         R300_TX_FORMAT_G_SHIFT,
  52         R300_TX_FORMAT_B_SHIFT,
  53         R300_TX_FORMAT_A_SHIFT
  54     };
  55     uint32_t swizzle_bit[4] = {
  56         dxtc_swizzle ? R300_TX_FORMAT_Z : R300_TX_FORMAT_X,
  57         R300_TX_FORMAT_Y,
  58         dxtc_swizzle ? R300_TX_FORMAT_X : R300_TX_FORMAT_Z,
  59         R300_TX_FORMAT_W
  60     };
  61
  62     if (swizzle_view) {
  63         /* Combine two sets of swizzles. */
  64         for (i = 0; i < 4; i++) {
  65             swizzle[i] = swizzle_view[i] <= UTIL_FORMAT_SWIZZLE_W ?
  66                          swizzle_format[swizzle_view[i]] : swizzle_view[i];
  67         }
  68     } else {
  69         memcpy(swizzle, swizzle_format, 4);
  70     }
  71
  72     /* Get swizzle. */
  73     for (i = 0; i < 4; i++) {
  74         switch (swizzle[i]) {
  75             case UTIL_FORMAT_SWIZZLE_Y:
  76                 result |= swizzle_bit[1] << swizzle_shift[i];
  77                 break;
  78             case UTIL_FORMAT_SWIZZLE_Z:
  79                 result |= swizzle_bit[2] << swizzle_shift[i];
  80                 break;
  81             case UTIL_FORMAT_SWIZZLE_W:
  82                 result |= swizzle_bit[3] << swizzle_shift[i];
  83                 break;
  84             case UTIL_FORMAT_SWIZZLE_0:
  85                 result |= R300_TX_FORMAT_ZERO << swizzle_shift[i];
  86                 break;
  87             case UTIL_FORMAT_SWIZZLE_1:
  88                 result |= R300_TX_FORMAT_ONE << swizzle_shift[i];
  89                 break;
  90             default: /* UTIL_FORMAT_SWIZZLE_X */
  91                 result |= swizzle_bit[0] << swizzle_shift[i];
  92         }
  93     }
  94     return result;
  95 }
  96
  97 /* Translate a pipe_format into a useful texture format for sampling.
  98  *
  99  * Some special formats are translated directly using R300_EASY_TX_FORMAT,
 100  * but the majority of them is translated in a generic way, automatically
 101  * supporting all the formats hw can support.
 102  *
 103  * R300_EASY_TX_FORMAT swizzles the texture.
 104  * Note the signature of R300_EASY_TX_FORMAT:
 105  *   R300_EASY_TX_FORMAT(B, G, R, A, FORMAT);
 106  *
 107  * The FORMAT specifies how the texture sampler will treat the texture, and
 108  * makes available X, Y, Z, W, ZERO, and ONE for swizzling. */
 109 uint32_t r300_translate_texformat(enum pipe_format format,
 110                                   const unsigned char *swizzle_view,
 111                                   boolean is_r500,
 112                                   boolean dxtc_swizzle)
 113 {
 114     uint32_t result = 0;
 115     const struct util_format_description *desc;
 116     unsigned i;
 117     boolean uniform = TRUE;
 118     const uint32_t sign_bit[4] = {
 119         R300_TX_FORMAT_SIGNED_X,
 120         R300_TX_FORMAT_SIGNED_Y,
 121         R300_TX_FORMAT_SIGNED_Z,
 122         R300_TX_FORMAT_SIGNED_W,
 123     };
 124
 125     desc = util_format_description(format);
 126
 127     /* Colorspace (return non-RGB formats directly). */
 128     switch (desc->colorspace) {
 129         /* Depth stencil formats.
 130          * Swizzles are added in r300_merge_textures_and_samplers. */
 131         case UTIL_FORMAT_COLORSPACE_ZS:
 132             switch (format) {
 133                 case PIPE_FORMAT_Z16_UNORM:
 134                     return R300_TX_FORMAT_X16;
 135                 case PIPE_FORMAT_X8Z24_UNORM:
 136                 case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
 137                     if (is_r500)
 138                         return R500_TX_FORMAT_Y8X24;
 139                     else
 140                         return R300_TX_FORMAT_Y16X16;
 141                 default:
 142                     return ~0; /* Unsupported. */
 143             }
 144
 145         /* YUV formats. */
 146         case UTIL_FORMAT_COLORSPACE_YUV:
 147             result |= R300_TX_FORMAT_YUV_TO_RGB;
 148
 149             switch (format) {
 150                 case PIPE_FORMAT_UYVY:
 151                     return R300_EASY_TX_FORMAT(X, Y, Z, ONE, YVYU422) | result;
 152                 case PIPE_FORMAT_YUYV:
 153                     return R300_EASY_TX_FORMAT(X, Y, Z, ONE, VYUY422) | result;
 154                 default:
 155                     return ~0; /* Unsupported/unknown. */
 156             }
 157
 158         /* Add gamma correction. */
 159         case UTIL_FORMAT_COLORSPACE_SRGB:
 160             result |= R300_TX_FORMAT_GAMMA;
 161             break;
 162
 163         default:
 164             switch (format) {
 165                 /* Same as YUV but without the YUR->RGB conversion. */
 166                 case PIPE_FORMAT_R8G8_B8G8_UNORM:
 167                     return R300_EASY_TX_FORMAT(X, Y, Z, ONE, YVYU422) | result;
 168                 case PIPE_FORMAT_G8R8_G8B8_UNORM:
 169                     return R300_EASY_TX_FORMAT(X, Y, Z, ONE, VYUY422) | result;
 170                 default:;
 171             }
 172     }
 173
 174     result |= r300_get_swizzle_combined(desc->swizzle, swizzle_view,
 175                     util_format_is_compressed(format) && dxtc_swizzle);
 176
 177     /* S3TC formats. */
 178     if (desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
 179         if (!util_format_s3tc_enabled) {
 180             return ~0; /* Unsupported. */
 181         }
 182
 183         switch (format) {
 184             case PIPE_FORMAT_DXT1_RGB:
 185             case PIPE_FORMAT_DXT1_RGBA:
 186             case PIPE_FORMAT_DXT1_SRGB:
 187             case PIPE_FORMAT_DXT1_SRGBA:
 188                 return R300_TX_FORMAT_DXT1 | result;
 189             case PIPE_FORMAT_DXT3_RGBA:
 190             case PIPE_FORMAT_DXT3_SRGBA:
 191                 return R300_TX_FORMAT_DXT3 | result;
 192             case PIPE_FORMAT_DXT5_RGBA:
 193             case PIPE_FORMAT_DXT5_SRGBA:
 194                 return R300_TX_FORMAT_DXT5 | result;
 195             default:
 196                 return ~0; /* Unsupported/unknown. */
 197         }
 198     }
 199
 200     /* Add sign. */
 201     for (i = 0; i < desc->nr_channels; i++) {
 202         if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
 203             result |= sign_bit[i];
 204         }
 205     }
 206
 207     /* This is truly a special format.
 208      * It stores R8G8 and B is computed using sqrt(1 - R^2 - G^2)
 209      * in the sampler unit. Also known as D3DFMT_CxV8U8. */
 210     if (format == PIPE_FORMAT_R8G8Bx_SNORM) {
 211         return R300_TX_FORMAT_CxV8U8 | result;
 212     }
 213
 214     /* RGTC formats. */
 215     if (desc->layout == UTIL_FORMAT_LAYOUT_RGTC) {
 216         switch (format) {
 217             case PIPE_FORMAT_RGTC1_UNORM:
 218             case PIPE_FORMAT_RGTC1_SNORM:
 219                 return R500_TX_FORMAT_ATI1N | result;
 220             case PIPE_FORMAT_RGTC2_UNORM:
 221             case PIPE_FORMAT_RGTC2_SNORM:
 222                 return R400_TX_FORMAT_ATI2N | result;
 223             default:
 224                 return ~0; /* Unsupported/unknown. */
 225         }
 226     }
 227
 228     /* See whether the components are of the same size. */
 229     for (i = 1; i < desc->nr_channels; i++) {
 230         uniform = uniform && desc->channel[0].size == desc->channel[i].size;
 231     }
 232
 233     /* Non-uniform formats. */
 234     if (!uniform) {
 235         switch (desc->nr_channels) {
 236             case 3:
 237                 if (desc->channel[0].size == 5 &&
 238                     desc->channel[1].size == 6 &&
 239                     desc->channel[2].size == 5) {
 240                     return R300_TX_FORMAT_Z5Y6X5 | result;
 241                 }
 242                 if (desc->channel[0].size == 5 &&
 243                     desc->channel[1].size == 5 &&
 244                     desc->channel[2].size == 6) {
 245                     return R300_TX_FORMAT_Z6Y5X5 | result;
 246                 }
 247                 if (desc->channel[0].size == 2 &&
 248                     desc->channel[1].size == 3 &&
 249                     desc->channel[2].size == 3) {
 250                     return R300_TX_FORMAT_Z3Y3X2 | result;
 251                 }
 252                 return ~0; /* Unsupported/unknown. */
 253
 254             case 4:
 255                 if (desc->channel[0].size == 5 &&
 256                     desc->channel[1].size == 5 &&
 257                     desc->channel[2].size == 5 &&
 258                     desc->channel[3].size == 1) {
 259                     return R300_TX_FORMAT_W1Z5Y5X5 | result;
 260                 }
 261                 if (desc->channel[0].size == 10 &&
 262                     desc->channel[1].size == 10 &&
 263                     desc->channel[2].size == 10 &&
 264                     desc->channel[3].size == 2) {
 265                     return R300_TX_FORMAT_W2Z10Y10X10 | result;
 266                 }
 267         }
 268         return ~0; /* Unsupported/unknown. */
 269     }
 270
 271     /* Find the first non-VOID channel. */
 272     for (i = 0; i < 4; i++) {
 273         if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
 274             break;
 275         }
 276     }
 277
 278     if (i == 4)
 279         return ~0; /* Unsupported/unknown. */
 280
 281     /* And finally, uniform formats. */
 282     switch (desc->channel[i].type) {
 283         case UTIL_FORMAT_TYPE_UNSIGNED:
 284         case UTIL_FORMAT_TYPE_SIGNED:
 285             if (!desc->channel[i].normalized &&
 286                 desc->colorspace != UTIL_FORMAT_COLORSPACE_SRGB) {
 287                 return ~0;
 288             }
 289
 290             switch (desc->channel[i].size) {
 291                 case 4:
 292                     switch (desc->nr_channels) {
 293                         case 2:
 294                             return R300_TX_FORMAT_Y4X4 | result;
 295                         case 4:
 296                             return R300_TX_FORMAT_W4Z4Y4X4 | result;
 297                     }
 298                     return ~0;
 299
 300                 case 8:
 301                     switch (desc->nr_channels) {
 302                         case 1:
 303                             return R300_TX_FORMAT_X8 | result;
 304                         case 2:
 305                             return R300_TX_FORMAT_Y8X8 | result;
 306                         case 4:
 307                             return R300_TX_FORMAT_W8Z8Y8X8 | result;
 308                     }
 309                     return ~0;
 310
 311                 case 16:
 312                     switch (desc->nr_channels) {
 313                         case 1:
 314                             return R300_TX_FORMAT_X16 | result;
 315                         case 2:
 316                             return R300_TX_FORMAT_Y16X16 | result;
 317                         case 4:
 318                             return R300_TX_FORMAT_W16Z16Y16X16 | result;
 319                     }
 320             }
 321             return ~0;
 322
 323         case UTIL_FORMAT_TYPE_FLOAT:
 324             switch (desc->channel[i].size) {
 325                 case 16:
 326                     switch (desc->nr_channels) {
 327                         case 1:
 328                             return R300_TX_FORMAT_16F | result;
 329                         case 2:
 330                             return R300_TX_FORMAT_16F_16F | result;
 331                         case 4:
 332                             return R300_TX_FORMAT_16F_16F_16F_16F | result;
 333                     }
 334                     return ~0;
 335
 336                 case 32:
 337                     switch (desc->nr_channels) {
 338                         case 1:
 339                             return R300_TX_FORMAT_32F | result;
 340                         case 2:
 341                             return R300_TX_FORMAT_32F_32F | result;
 342                         case 4:
 343                             return R300_TX_FORMAT_32F_32F_32F_32F | result;
 344                     }
 345             }
 346     }
 347
 348     return ~0; /* Unsupported/unknown. */
 349 }
 350
 351 uint32_t r500_tx_format_msb_bit(enum pipe_format format)
 352 {
 353     switch (format) {
 354         case PIPE_FORMAT_RGTC1_UNORM:
 355         case PIPE_FORMAT_RGTC1_SNORM:
 356         case PIPE_FORMAT_X8Z24_UNORM:
 357         case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
 358             return R500_TXFORMAT_MSB;
 359         default:
 360             return 0;
 361     }
 362 }
 363
 364 /* Buffer formats. */
 365
 366 /* Colorbuffer formats. This is the unswizzled format of the RB3D block's
 367  * output. For the swizzling of the targets, check the shader's format. */
 368 static uint32_t r300_translate_colorformat(enum pipe_format format)
 369 {
 370     switch (format) {
 371         /* 8-bit buffers. */
 372         case PIPE_FORMAT_A8_UNORM:
 373         /*case PIPE_FORMAT_A8_SNORM:*/
 374         case PIPE_FORMAT_I8_UNORM:
 375         /*case PIPE_FORMAT_I8_SNORM:*/
 376         case PIPE_FORMAT_L8_UNORM:
 377         /*case PIPE_FORMAT_L8_SNORM:*/
 378         case PIPE_FORMAT_L8_SRGB:
 379         case PIPE_FORMAT_R8_UNORM:
 380         case PIPE_FORMAT_R8_SNORM:
 381             return R300_COLOR_FORMAT_I8;
 382
 383         /* 16-bit buffers. */
 384         case PIPE_FORMAT_L8A8_UNORM:
 385         /*case PIPE_FORMAT_L8A8_SNORM:*/
 386         case PIPE_FORMAT_L8A8_SRGB:
 387         case PIPE_FORMAT_R8G8_UNORM:
 388         case PIPE_FORMAT_R8G8_SNORM:
 389             return R300_COLOR_FORMAT_UV88;
 390
 391         case PIPE_FORMAT_B5G6R5_UNORM:
 392             return R300_COLOR_FORMAT_RGB565;
 393
 394         case PIPE_FORMAT_B5G5R5A1_UNORM:
 395         case PIPE_FORMAT_B5G5R5X1_UNORM:
 396             return R300_COLOR_FORMAT_ARGB1555;
 397
 398         case PIPE_FORMAT_B4G4R4A4_UNORM:
 399         case PIPE_FORMAT_B4G4R4X4_UNORM:
 400             return R300_COLOR_FORMAT_ARGB4444;
 401
 402         /* 32-bit buffers. */
 403         case PIPE_FORMAT_B8G8R8A8_UNORM:
 404         /*case PIPE_FORMAT_B8G8R8A8_SNORM:*/
 405         case PIPE_FORMAT_B8G8R8A8_SRGB:
 406         case PIPE_FORMAT_B8G8R8X8_UNORM:
 407         /*case PIPE_FORMAT_B8G8R8X8_SNORM:*/
 408         case PIPE_FORMAT_B8G8R8X8_SRGB:
 409         case PIPE_FORMAT_A8R8G8B8_UNORM:
 410         /*case PIPE_FORMAT_A8R8G8B8_SNORM:*/
 411         case PIPE_FORMAT_A8R8G8B8_SRGB:
 412         case PIPE_FORMAT_X8R8G8B8_UNORM:
 413         /*case PIPE_FORMAT_X8R8G8B8_SNORM:*/
 414         case PIPE_FORMAT_X8R8G8B8_SRGB:
 415         case PIPE_FORMAT_A8B8G8R8_UNORM:
 416         /*case PIPE_FORMAT_A8B8G8R8_SNORM:*/
 417         case PIPE_FORMAT_A8B8G8R8_SRGB:
 418         case PIPE_FORMAT_R8G8B8A8_UNORM:
 419         case PIPE_FORMAT_R8G8B8A8_SNORM:
 420         case PIPE_FORMAT_R8G8B8A8_SRGB:
 421         case PIPE_FORMAT_X8B8G8R8_UNORM:
 422         /*case PIPE_FORMAT_X8B8G8R8_SNORM:*/
 423         case PIPE_FORMAT_X8B8G8R8_SRGB:
 424         case PIPE_FORMAT_R8G8B8X8_UNORM:
 425         /*case PIPE_FORMAT_R8G8B8X8_SNORM:*/
 426         /*case PIPE_FORMAT_R8G8B8X8_SRGB:*/
 427         case PIPE_FORMAT_R8SG8SB8UX8U_NORM:
 428             return R300_COLOR_FORMAT_ARGB8888;
 429
 430         case PIPE_FORMAT_R10G10B10A2_UNORM:
 431         case PIPE_FORMAT_R10G10B10X2_SNORM:
 432         case PIPE_FORMAT_B10G10R10A2_UNORM:
 433         case PIPE_FORMAT_R10SG10SB10SA2U_NORM:
 434             return R500_COLOR_FORMAT_ARGB2101010;  /* R5xx-only? */
 435
 436         /* 64-bit buffers. */
 437         case PIPE_FORMAT_R16G16B16A16_UNORM:
 438         case PIPE_FORMAT_R16G16B16A16_SNORM:
 439         case PIPE_FORMAT_R16G16B16A16_FLOAT:
 440             return R300_COLOR_FORMAT_ARGB16161616;
 441
 442         /* 128-bit buffers. */
 443         case PIPE_FORMAT_R32G32B32A32_FLOAT:
 444             return R300_COLOR_FORMAT_ARGB32323232;
 445
 446         /* YUV buffers. */
 447         case PIPE_FORMAT_UYVY:
 448             return R300_COLOR_FORMAT_YVYU;
 449         case PIPE_FORMAT_YUYV:
 450             return R300_COLOR_FORMAT_VYUY;
 451         default:
 452             return ~0; /* Unsupported. */
 453     }
 454 }
 455
 456 /* Depthbuffer and stencilbuffer. Thankfully, we only support two flavors. */
 457 static uint32_t r300_translate_zsformat(enum pipe_format format)
 458 {
 459     switch (format) {
 460         /* 16-bit depth, no stencil */
 461         case PIPE_FORMAT_Z16_UNORM:
 462             return R300_DEPTHFORMAT_16BIT_INT_Z;
 463         /* 24-bit depth, ignored stencil */
 464         case PIPE_FORMAT_X8Z24_UNORM:
 465         /* 24-bit depth, 8-bit stencil */
 466         case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
 467             return R300_DEPTHFORMAT_24BIT_INT_Z_8BIT_STENCIL;
 468         default:
 469             return ~0; /* Unsupported. */
 470     }
 471 }
 472
 473 /* Shader output formats. This is essentially the swizzle from the shader
 474  * to the RB3D block.
 475  *
 476  * Note that formats are stored from C3 to C0. */
 477 static uint32_t r300_translate_out_fmt(enum pipe_format format)
 478 {
 479     uint32_t modifier = 0;
 480     unsigned i;
 481     const struct util_format_description *desc;
 482     static const uint32_t sign_bit[4] = {
 483         R300_OUT_SIGN(0x1),
 484         R300_OUT_SIGN(0x2),
 485         R300_OUT_SIGN(0x4),
 486         R300_OUT_SIGN(0x8),
 487     };
 488
 489     desc = util_format_description(format);
 490
 491     /* Find the first non-VOID channel. */
 492     for (i = 0; i < 4; i++) {
 493         if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
 494             break;
 495         }
 496     }
 497
 498     if (i == 4)
 499         return ~0; /* Unsupported/unknown. */
 500
 501     /* Specifies how the shader output is written to the fog unit. */
 502     if (desc->channel[i].type == UTIL_FORMAT_TYPE_FLOAT) {
 503         if (desc->channel[i].size == 32) {
 504             modifier |= R300_US_OUT_FMT_C4_32_FP;
 505         } else {
 506             modifier |= R300_US_OUT_FMT_C4_16_FP;
 507         }
 508     } else {
 509         if (desc->channel[i].size == 16) {
 510             modifier |= R300_US_OUT_FMT_C4_16;
 511         } else if (desc->channel[i].size == 10) {
 512             modifier |= R300_US_OUT_FMT_C4_10;
 513         } else {
 514             /* C4_8 seems to be used for the formats whose pixel size
 515              * is <= 32 bits. */
 516             modifier |= R300_US_OUT_FMT_C4_8;
 517         }
 518     }
 519
 520     /* Add sign. */
 521     for (i = 0; i < 4; i++)
 522         if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
 523             modifier |= sign_bit[i];
 524         }
 525
 526     /* Add swizzles and return. */
 527     switch (format) {
 528         /* 8-bit outputs, one channel.
 529          * COLORFORMAT_I8 stores the C2 component. */
 530         case PIPE_FORMAT_A8_UNORM:
 531         /*case PIPE_FORMAT_A8_SNORM:*/
 532             return modifier | R300_C2_SEL_A;
 533         case PIPE_FORMAT_I8_UNORM:
 534         /*case PIPE_FORMAT_I8_SNORM:*/
 535         case PIPE_FORMAT_L8_UNORM:
 536         /*case PIPE_FORMAT_L8_SNORM:*/
 537         case PIPE_FORMAT_L8_SRGB:
 538         case PIPE_FORMAT_R8_UNORM:
 539         case PIPE_FORMAT_R8_SNORM:
 540             return modifier | R300_C2_SEL_R;
 541
 542         /* 16-bit outputs, two channels.
 543          * COLORFORMAT_UV88 stores C2 and C0. */
 544         case PIPE_FORMAT_L8A8_UNORM:
 545         /*case PIPE_FORMAT_L8A8_SNORM:*/
 546         case PIPE_FORMAT_L8A8_SRGB:
 547             return modifier | R300_C0_SEL_A | R300_C2_SEL_R;
 548         case PIPE_FORMAT_R8G8_UNORM:
 549         case PIPE_FORMAT_R8G8_SNORM:
 550             return modifier | R300_C0_SEL_G | R300_C2_SEL_R;
 551
 552         /* BGRA outputs. */
 553         case PIPE_FORMAT_B5G6R5_UNORM:
 554         case PIPE_FORMAT_B5G5R5A1_UNORM:
 555         case PIPE_FORMAT_B5G5R5X1_UNORM:
 556         case PIPE_FORMAT_B4G4R4A4_UNORM:
 557         case PIPE_FORMAT_B4G4R4X4_UNORM:
 558         case PIPE_FORMAT_B8G8R8A8_UNORM:
 559         /*case PIPE_FORMAT_B8G8R8A8_SNORM:*/
 560         case PIPE_FORMAT_B8G8R8A8_SRGB:
 561         case PIPE_FORMAT_B8G8R8X8_UNORM:
 562         /*case PIPE_FORMAT_B8G8R8X8_SNORM:*/
 563         case PIPE_FORMAT_B8G8R8X8_SRGB:
 564         case PIPE_FORMAT_B10G10R10A2_UNORM:
 565             return modifier |
 566                 R300_C0_SEL_B | R300_C1_SEL_G |
 567                 R300_C2_SEL_R | R300_C3_SEL_A;
 568
 569         /* ARGB outputs. */
 570         case PIPE_FORMAT_A8R8G8B8_UNORM:
 571         /*case PIPE_FORMAT_A8R8G8B8_SNORM:*/
 572         case PIPE_FORMAT_A8R8G8B8_SRGB:
 573         case PIPE_FORMAT_X8R8G8B8_UNORM:
 574         /*case PIPE_FORMAT_X8R8G8B8_SNORM:*/
 575         case PIPE_FORMAT_X8R8G8B8_SRGB:
 576             return modifier |
 577                 R300_C0_SEL_A | R300_C1_SEL_R |
 578                 R300_C2_SEL_G | R300_C3_SEL_B;
 579
 580         /* ABGR outputs. */
 581         case PIPE_FORMAT_A8B8G8R8_UNORM:
 582         /*case PIPE_FORMAT_A8B8G8R8_SNORM:*/
 583         case PIPE_FORMAT_A8B8G8R8_SRGB:
 584         case PIPE_FORMAT_X8B8G8R8_UNORM:
 585         /*case PIPE_FORMAT_X8B8G8R8_SNORM:*/
 586         case PIPE_FORMAT_X8B8G8R8_SRGB:
 587             return modifier |
 588                 R300_C0_SEL_A | R300_C1_SEL_B |
 589                 R300_C2_SEL_G | R300_C3_SEL_R;
 590
 591         /* RGBA outputs. */
 592         case PIPE_FORMAT_R8G8B8X8_UNORM:
 593         /*case PIPE_FORMAT_R8G8B8X8_SNORM:*/
 594         /*case PIPE_FORMAT_R8G8B8X8_SRGB:*/
 595         case PIPE_FORMAT_R8G8B8A8_UNORM:
 596         case PIPE_FORMAT_R8G8B8A8_SNORM:
 597         case PIPE_FORMAT_R8G8B8A8_SRGB:
 598         case PIPE_FORMAT_R8SG8SB8UX8U_NORM:
 599         case PIPE_FORMAT_R10G10B10A2_UNORM:
 600         case PIPE_FORMAT_R10G10B10X2_SNORM:
 601         case PIPE_FORMAT_R10SG10SB10SA2U_NORM:
 602         case PIPE_FORMAT_R16G16B16A16_UNORM:
 603         case PIPE_FORMAT_R16G16B16A16_SNORM:
 604         case PIPE_FORMAT_R16G16B16A16_FLOAT:
 605         case PIPE_FORMAT_R32G32B32A32_FLOAT:
 606             return modifier |
 607                 R300_C0_SEL_R | R300_C1_SEL_G |
 608                 R300_C2_SEL_B | R300_C3_SEL_A;
 609
 610         default:
 611             return ~0; /* Unsupported. */
 612     }
 613 }
 614
 615 boolean r300_is_colorbuffer_format_supported(enum pipe_format format)
 616 {
 617     return r300_translate_colorformat(format) != ~0 &&
 618            r300_translate_out_fmt(format) != ~0;
 619 }
 620
 621 boolean r300_is_zs_format_supported(enum pipe_format format)
 622 {
 623     return r300_translate_zsformat(format) != ~0;
 624 }
 625
 626 boolean r300_is_sampler_format_supported(enum pipe_format format)
 627 {
 628     return r300_translate_texformat(format, 0, TRUE, FALSE) != ~0;
 629 }
 630
 631 void r300_texture_setup_format_state(struct r300_screen *screen,
 632                                      struct r300_texture_desc *desc,
 633                                      unsigned level,
 634                                      struct r300_texture_format_state *out)
 635 {
 636     struct pipe_resource *pt = &desc->b.b;
 637     boolean is_r500 = screen->caps.is_r500;
 638
 639     /* Mask out all the fields we change. */
 640     out->format0 = 0;
 641     out->format1 &= ~R300_TX_FORMAT_TEX_COORD_TYPE_MASK;
 642     out->format2 &= R500_TXFORMAT_MSB;
 643     out->tile_config = 0;
 644
 645     /* Set sampler state. */
 646     out->format0 =
 647         R300_TX_WIDTH((u_minify(desc->width0, level) - 1) & 0x7ff) |
 648         R300_TX_HEIGHT((u_minify(desc->height0, level) - 1) & 0x7ff) |
 649         R300_TX_DEPTH(util_logbase2(u_minify(desc->depth0, level)) & 0xf);
 650
 651     if (desc->uses_stride_addressing) {
 652         /* rectangles love this */
 653         out->format0 |= R300_TX_PITCH_EN;
 654         out->format2 = (desc->stride_in_pixels[level] - 1) & 0x1fff;
 655     }
 656
 657     if (pt->target == PIPE_TEXTURE_CUBE) {
 658         out->format1 |= R300_TX_FORMAT_CUBIC_MAP;
 659     }
 660     if (pt->target == PIPE_TEXTURE_3D) {
 661         out->format1 |= R300_TX_FORMAT_3D;
 662     }
 663
 664     /* large textures on r500 */
 665     if (is_r500)
 666     {
 667         if (desc->width0 > 2048) {
 668             out->format2 |= R500_TXWIDTH_BIT11;
 669         }
 670         if (desc->height0 > 2048) {
 671             out->format2 |= R500_TXHEIGHT_BIT11;
 672         }
 673     }
 674
 675     out->tile_config = R300_TXO_MACRO_TILE(desc->macrotile[level]) |
 676                        R300_TXO_MICRO_TILE(desc->microtile);
 677 }
 678
 679 static void r300_texture_setup_fb_state(struct r300_screen* screen,
 680                                         struct r300_texture* tex)
 681 {
 682     unsigned i;
 683
 684     /* Set framebuffer state. */
 685     if (util_format_is_depth_or_stencil(tex->desc.b.b.format)) {
 686         for (i = 0; i <= tex->desc.b.b.last_level; i++) {
 687             tex->fb_state.pitch[i] =
 688                 tex->desc.stride_in_pixels[i] |
 689                 R300_DEPTHMACROTILE(tex->desc.macrotile[i]) |
 690                 R300_DEPTHMICROTILE(tex->desc.microtile);
 691         }
 692         tex->fb_state.format = r300_translate_zsformat(tex->desc.b.b.format);
 693     } else {
 694         for (i = 0; i <= tex->desc.b.b.last_level; i++) {
 695             tex->fb_state.pitch[i] =
 696                 tex->desc.stride_in_pixels[i] |
 697                 r300_translate_colorformat(tex->desc.b.b.format) |
 698                 R300_COLOR_TILE(tex->desc.macrotile[i]) |
 699                 R300_COLOR_MICROTILE(tex->desc.microtile);
 700         }
 701         tex->fb_state.format = r300_translate_out_fmt(tex->desc.b.b.format);
 702     }
 703 }
 704
 705 void r300_texture_reinterpret_format(struct pipe_screen *screen,
 706                                      struct pipe_resource *tex,
 707                                      enum pipe_format new_format)
 708 {
 709     struct r300_screen *r300screen = r300_screen(screen);
 710
 711     SCREEN_DBG(r300screen, DBG_TEX,
 712         "r300: texture_reinterpret_format: %s -> %s\n",
 713         util_format_short_name(tex->format),
 714         util_format_short_name(new_format));
 715
 716     tex->format = new_format;
 717
 718     r300_texture_setup_fb_state(r300_screen(screen), r300_texture(tex));
 719 }
 720
 721 static unsigned r300_texture_is_referenced(struct pipe_context *context,
 722                                            struct pipe_resource *texture,
 723                                            unsigned level, int layer)
 724 {
 725     struct r300_context *r300 = r300_context(context);
 726     struct r300_texture *rtex = (struct r300_texture *)texture;
 727
 728     if (r300->rws->cs_is_buffer_referenced(r300->cs,
 729                                            rtex->cs_buffer, R300_REF_CS))
 730         return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
 731
 732     return PIPE_UNREFERENCED;
 733 }
 734
 735 static void r300_texture_destroy(struct pipe_screen *screen,
 736                                  struct pipe_resource* texture)
 737 {
 738     struct r300_texture* tex = (struct r300_texture*)texture;
 739     struct r300_winsys_screen *rws = (struct r300_winsys_screen *)texture->screen->winsys;
 740     int i;
 741
 742     rws->buffer_reference(rws, &tex->buffer, NULL);
 743     for (i = 0; i < R300_MAX_TEXTURE_LEVELS; i++) {
 744         if (tex->hiz_mem[i])
 745             u_mmFreeMem(tex->hiz_mem[i]);
 746         if (tex->zmask_mem[i])
 747             u_mmFreeMem(tex->zmask_mem[i]);
 748     }
 749
 750     FREE(tex);
 751 }
 752
 753 static boolean r300_texture_get_handle(struct pipe_screen* screen,
 754                                        struct pipe_resource *texture,
 755                                        struct winsys_handle *whandle)
 756 {
 757     struct r300_winsys_screen *rws = (struct r300_winsys_screen *)screen->winsys;
 758     struct r300_texture* tex = (struct r300_texture*)texture;
 759
 760     if (!tex) {
 761         return FALSE;
 762     }
 763
 764     return rws->buffer_get_handle(rws, tex->buffer,
 765                                   tex->desc.stride_in_bytes[0], whandle);
 766 }
 767
 768 struct u_resource_vtbl r300_texture_vtbl =
 769 {
 770    r300_texture_get_handle,           /* get_handle */
 771    r300_texture_destroy,              /* resource_destroy */
 772    r300_texture_is_referenced,        /* is_resource_referenced */
 773    r300_texture_get_transfer,         /* get_transfer */
 774    r300_texture_transfer_destroy,     /* transfer_destroy */
 775    r300_texture_transfer_map,         /* transfer_map */
 776    u_default_transfer_flush_region,   /* transfer_flush_region */
 777    r300_texture_transfer_unmap,       /* transfer_unmap */
 778    u_default_transfer_inline_write    /* transfer_inline_write */
 779 };
 780
 781 /* The common texture constructor. */
 782 static struct r300_texture*
 783 r300_texture_create_object(struct r300_screen *rscreen,
 784                            const struct pipe_resource *base,
 785                            enum r300_buffer_tiling microtile,
 786                            enum r300_buffer_tiling macrotile,
 787                            unsigned stride_in_bytes_override,
 788                            unsigned max_buffer_size,
 789                            struct r300_winsys_buffer *buffer)
 790 {
 791     struct r300_winsys_screen *rws = rscreen->rws;
 792     struct r300_texture *tex = CALLOC_STRUCT(r300_texture);
 793     if (!tex) {
 794         if (buffer)
 795             rws->buffer_reference(rws, &buffer, NULL);
 796         return NULL;
 797     }
 798
 799     /* Initialize the descriptor. */
 800     if (!r300_texture_desc_init(rscreen, &tex->desc, base,
 801                                 microtile, macrotile,
 802                                 stride_in_bytes_override,
 803                                 max_buffer_size)) {
 804         if (buffer)
 805             rws->buffer_reference(rws, &buffer, NULL);
 806         FREE(tex);
 807         return NULL;
 808     }
 809     /* Initialize the hardware state. */
 810     r300_texture_setup_format_state(rscreen, &tex->desc, 0, &tex->tx_format);
 811     r300_texture_setup_fb_state(rscreen, tex);
 812
 813     tex->desc.b.vtbl = &r300_texture_vtbl;
 814     pipe_reference_init(&tex->desc.b.b.reference, 1);
 815     tex->domain = base->flags & R300_RESOURCE_FLAG_TRANSFER ?
 816                   R300_DOMAIN_GTT :
 817                   R300_DOMAIN_VRAM | R300_DOMAIN_GTT;
 818     tex->buffer = buffer;
 819
 820     /* Create the backing buffer if needed. */
 821     if (!tex->buffer) {
 822         tex->buffer = rws->buffer_create(rws, tex->desc.size_in_bytes, 2048,
 823                                          base->bind, base->usage, tex->domain);
 824
 825         if (!tex->buffer) {
 826             FREE(tex);
 827             return NULL;
 828         }
 829     }
 830
 831     tex->cs_buffer = rws->buffer_get_cs_handle(rws, tex->buffer);
 832
 833     rws->buffer_set_tiling(rws, tex->buffer,
 834             tex->desc.microtile, tex->desc.macrotile[0],
 835             tex->desc.stride_in_bytes[0]);
 836
 837     return tex;
 838 }
 839
 840 /* Create a new texture. */
 841 struct pipe_resource *r300_texture_create(struct pipe_screen *screen,
 842                                           const struct pipe_resource *base)
 843 {
 844     struct r300_screen *rscreen = r300_screen(screen);
 845     enum r300_buffer_tiling microtile, macrotile;
 846
 847     if ((base->flags & R300_RESOURCE_FLAG_TRANSFER) ||
 848         (base->bind & PIPE_BIND_SCANOUT)) {
 849         microtile = R300_BUFFER_LINEAR;
 850         macrotile = R300_BUFFER_LINEAR;
 851     } else {
 852         microtile = R300_BUFFER_SELECT_LAYOUT;
 853         macrotile = R300_BUFFER_SELECT_LAYOUT;
 854     }
 855
 856     return (struct pipe_resource*)
 857            r300_texture_create_object(rscreen, base, microtile, macrotile,
 858                                       0, 0, NULL);
 859 }
 860
 861 struct pipe_resource *r300_texture_from_handle(struct pipe_screen *screen,
 862                                                const struct pipe_resource *base,
 863                                                struct winsys_handle *whandle)
 864 {
 865     struct r300_winsys_screen *rws = (struct r300_winsys_screen*)screen->winsys;
 866     struct r300_screen *rscreen = r300_screen(screen);
 867     struct r300_winsys_buffer *buffer;
 868     enum r300_buffer_tiling microtile, macrotile;
 869     unsigned stride, size;
 870
 871     /* Support only 2D textures without mipmaps */
 872     if ((base->target != PIPE_TEXTURE_2D &&
 873           base->target != PIPE_TEXTURE_RECT) ||
 874         base->depth0 != 1 ||
 875         base->last_level != 0) {
 876         return NULL;
 877     }
 878
 879     buffer = rws->buffer_from_handle(rws, whandle, &stride, &size);
 880     if (!buffer)
 881         return NULL;
 882
 883     rws->buffer_get_tiling(rws, buffer, &microtile, &macrotile);
 884
 885     /* Enforce a microtiled zbuffer. */
 886     if (util_format_is_depth_or_stencil(base->format) &&
 887         microtile == R300_BUFFER_LINEAR) {
 888         switch (util_format_get_blocksize(base->format)) {
 889             case 4:
 890                 microtile = R300_BUFFER_TILED;
 891                 break;
 892
 893             case 2:
 894                 if (rws->get_value(rws, R300_VID_SQUARE_TILING_SUPPORT))
 895                     microtile = R300_BUFFER_SQUARETILED;
 896                 break;
 897         }
 898     }
 899
 900     return (struct pipe_resource*)
 901            r300_texture_create_object(rscreen, base, microtile, macrotile,
 902                                       stride, size, buffer);
 903 }
 904
 905 /* Not required to implement u_resource_vtbl, consider moving to another file:
 906  */
 907 struct pipe_surface* r300_create_surface(struct pipe_context * ctx,
 908                                          struct pipe_resource* texture,
 909                                          const struct pipe_surface *surf_tmpl)
 910 {
 911     struct r300_texture* tex = r300_texture(texture);
 912     struct r300_surface* surface = CALLOC_STRUCT(r300_surface);
 913     unsigned level = surf_tmpl->u.tex.level;
 914
 915     assert(surf_tmpl->u.tex.first_layer == surf_tmpl->u.tex.last_layer);
 916
 917     if (surface) {
 918         uint32_t offset, tile_height;
 919
 920         pipe_reference_init(&surface->base.reference, 1);
 921         pipe_resource_reference(&surface->base.texture, texture);
 922         surface->base.context = ctx;
 923         surface->base.format = surf_tmpl->format;
 924         surface->base.width = u_minify(texture->width0, level);
 925         surface->base.height = u_minify(texture->height0, level);
 926         surface->base.usage = surf_tmpl->usage;
 927         surface->base.u.tex.level = level;
 928         surface->base.u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 929         surface->base.u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 930
 931         surface->buffer = tex->buffer;
 932         surface->cs_buffer = tex->cs_buffer;
 933
 934         /* Prefer VRAM if there are multiple domains to choose from. */
 935         surface->domain = tex->domain;
 936         if (surface->domain & R300_DOMAIN_VRAM)
 937             surface->domain &= ~R300_DOMAIN_GTT;
 938
 939         surface->offset = r300_texture_get_offset(&tex->desc, level,
 940                                                   surf_tmpl->u.tex.first_layer);
 941         surface->pitch = tex->fb_state.pitch[level];
 942         surface->format = tex->fb_state.format;
 943
 944         /* Parameters for the CBZB clear. */
 945         surface->cbzb_allowed = tex->desc.cbzb_allowed[level];
 946         surface->cbzb_width = align(surface->base.width, 64);
 947
 948         /* Height must be aligned to the size of a tile. */
 949         tile_height = r300_get_pixel_alignment(tex->desc.b.b.format,
 950                                                tex->desc.b.b.nr_samples,
 951                                                tex->desc.microtile,
 952                                                tex->desc.macrotile[level],
 953                                                DIM_HEIGHT, 0);
 954
 955         surface->cbzb_height = align((surface->base.height + 1) / 2,
 956                                      tile_height);
 957
 958         /* Offset must be aligned to 2K and must point at the beginning
 959          * of a scanline. */
 960         offset = surface->offset +
 961                  tex->desc.stride_in_bytes[level] * surface->cbzb_height;
 962         surface->cbzb_midpoint_offset = offset & ~2047;
 963
 964         surface->cbzb_pitch = surface->pitch & 0x1ffffc;
 965
 966         if (util_format_get_blocksizebits(surface->base.format) == 32)
 967             surface->cbzb_format = R300_DEPTHFORMAT_24BIT_INT_Z_8BIT_STENCIL;
 968         else
 969             surface->cbzb_format = R300_DEPTHFORMAT_16BIT_INT_Z;
 970
 971         DBG(r300_context(ctx), DBG_CBZB,
 972             "CBZB Allowed: %s, Dim: %ix%i, Misalignment: %i, Micro: %s, Macro: %s\n",
 973             surface->cbzb_allowed ? "YES" : " NO",
 974             surface->cbzb_width, surface->cbzb_height,
 975             offset & 2047,
 976             tex->desc.microtile ? "YES" : " NO",
 977             tex->desc.macrotile[level] ? "YES" : " NO");
 978     }
 979
 980     return &surface->base;
 981 }
 982
 983 /* Not required to implement u_resource_vtbl, consider moving to another file:
 984  */
 985 void r300_surface_destroy(struct pipe_context *ctx, struct pipe_surface* s)
 986 {
 987     pipe_resource_reference(&s->texture, NULL);
 988     FREE(s);
 989 }