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     if (util_format_is_compressed(format) &&
 175         dxtc_swizzle &&
 176         format != PIPE_FORMAT_RGTC2_UNORM &&
 177         format != PIPE_FORMAT_RGTC2_SNORM) {
 178         result |= r300_get_swizzle_combined(desc->swizzle, swizzle_view,
 179                                             dxtc_swizzle);
 180     } else {
 181         result |= r300_get_swizzle_combined(desc->swizzle, swizzle_view,
 182                                             FALSE);
 183     }
 184
 185     /* S3TC formats. */
 186     if (desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
 187         if (!util_format_s3tc_enabled) {
 188             return ~0; /* Unsupported. */
 189         }
 190
 191         switch (format) {
 192             case PIPE_FORMAT_DXT1_RGB:
 193             case PIPE_FORMAT_DXT1_RGBA:
 194             case PIPE_FORMAT_DXT1_SRGB:
 195             case PIPE_FORMAT_DXT1_SRGBA:
 196                 return R300_TX_FORMAT_DXT1 | result;
 197             case PIPE_FORMAT_DXT3_RGBA:
 198             case PIPE_FORMAT_DXT3_SRGBA:
 199                 return R300_TX_FORMAT_DXT3 | result;
 200             case PIPE_FORMAT_DXT5_RGBA:
 201             case PIPE_FORMAT_DXT5_SRGBA:
 202                 return R300_TX_FORMAT_DXT5 | result;
 203             default:
 204                 return ~0; /* Unsupported/unknown. */
 205         }
 206     }
 207
 208     /* RGTC formats. */
 209     if (desc->layout == UTIL_FORMAT_LAYOUT_RGTC) {
 210         switch (format) {
 211             case PIPE_FORMAT_RGTC1_SNORM:
 212                 result |= sign_bit[1];
 213             case PIPE_FORMAT_RGTC1_UNORM:
 214                 return R500_TX_FORMAT_ATI1N | result;
 215             case PIPE_FORMAT_RGTC2_SNORM:
 216                 result |= sign_bit[0] | sign_bit[1];
 217             case PIPE_FORMAT_RGTC2_UNORM:
 218                 return R400_TX_FORMAT_ATI2N | result;
 219             default:
 220                 return ~0; /* Unsupported/unknown. */
 221         }
 222     }
 223
 224     /* This is truly a special format.
 225      * It stores R8G8 and B is computed using sqrt(1 - R^2 - G^2)
 226      * in the sampler unit. Also known as D3DFMT_CxV8U8. */
 227     if (format == PIPE_FORMAT_R8G8Bx_SNORM) {
 228         return R300_TX_FORMAT_CxV8U8 | result;
 229     }
 230
 231     /* Add sign. */
 232     for (i = 0; i < desc->nr_channels; i++) {
 233         if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
 234             result |= sign_bit[i];
 235         }
 236     }
 237
 238     /* See whether the components are of the same size. */
 239     for (i = 1; i < desc->nr_channels; i++) {
 240         uniform = uniform && desc->channel[0].size == desc->channel[i].size;
 241     }
 242
 243     /* Non-uniform formats. */
 244     if (!uniform) {
 245         switch (desc->nr_channels) {
 246             case 3:
 247                 if (desc->channel[0].size == 5 &&
 248                     desc->channel[1].size == 6 &&
 249                     desc->channel[2].size == 5) {
 250                     return R300_TX_FORMAT_Z5Y6X5 | result;
 251                 }
 252                 if (desc->channel[0].size == 5 &&
 253                     desc->channel[1].size == 5 &&
 254                     desc->channel[2].size == 6) {
 255                     return R300_TX_FORMAT_Z6Y5X5 | result;
 256                 }
 257                 if (desc->channel[0].size == 2 &&
 258                     desc->channel[1].size == 3 &&
 259                     desc->channel[2].size == 3) {
 260                     return R300_TX_FORMAT_Z3Y3X2 | result;
 261                 }
 262                 return ~0; /* Unsupported/unknown. */
 263
 264             case 4:
 265                 if (desc->channel[0].size == 5 &&
 266                     desc->channel[1].size == 5 &&
 267                     desc->channel[2].size == 5 &&
 268                     desc->channel[3].size == 1) {
 269                     return R300_TX_FORMAT_W1Z5Y5X5 | result;
 270                 }
 271                 if (desc->channel[0].size == 10 &&
 272                     desc->channel[1].size == 10 &&
 273                     desc->channel[2].size == 10 &&
 274                     desc->channel[3].size == 2) {
 275                     return R300_TX_FORMAT_W2Z10Y10X10 | result;
 276                 }
 277         }
 278         return ~0; /* Unsupported/unknown. */
 279     }
 280
 281     /* Find the first non-VOID channel. */
 282     for (i = 0; i < 4; i++) {
 283         if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
 284             break;
 285         }
 286     }
 287
 288     if (i == 4)
 289         return ~0; /* Unsupported/unknown. */
 290
 291     /* And finally, uniform formats. */
 292     switch (desc->channel[i].type) {
 293         case UTIL_FORMAT_TYPE_UNSIGNED:
 294         case UTIL_FORMAT_TYPE_SIGNED:
 295             if (!desc->channel[i].normalized &&
 296                 desc->colorspace != UTIL_FORMAT_COLORSPACE_SRGB) {
 297                 return ~0;
 298             }
 299
 300             switch (desc->channel[i].size) {
 301                 case 4:
 302                     switch (desc->nr_channels) {
 303                         case 2:
 304                             return R300_TX_FORMAT_Y4X4 | result;
 305                         case 4:
 306                             return R300_TX_FORMAT_W4Z4Y4X4 | result;
 307                     }
 308                     return ~0;
 309
 310                 case 8:
 311                     switch (desc->nr_channels) {
 312                         case 1:
 313                             return R300_TX_FORMAT_X8 | result;
 314                         case 2:
 315                             return R300_TX_FORMAT_Y8X8 | result;
 316                         case 4:
 317                             return R300_TX_FORMAT_W8Z8Y8X8 | result;
 318                     }
 319                     return ~0;
 320
 321                 case 16:
 322                     switch (desc->nr_channels) {
 323                         case 1:
 324                             return R300_TX_FORMAT_X16 | result;
 325                         case 2:
 326                             return R300_TX_FORMAT_Y16X16 | result;
 327                         case 4:
 328                             return R300_TX_FORMAT_W16Z16Y16X16 | result;
 329                     }
 330             }
 331             return ~0;
 332
 333         case UTIL_FORMAT_TYPE_FLOAT:
 334             switch (desc->channel[i].size) {
 335                 case 16:
 336                     switch (desc->nr_channels) {
 337                         case 1:
 338                             return R300_TX_FORMAT_16F | result;
 339                         case 2:
 340                             return R300_TX_FORMAT_16F_16F | result;
 341                         case 4:
 342                             return R300_TX_FORMAT_16F_16F_16F_16F | result;
 343                     }
 344                     return ~0;
 345
 346                 case 32:
 347                     switch (desc->nr_channels) {
 348                         case 1:
 349                             return R300_TX_FORMAT_32F | result;
 350                         case 2:
 351                             return R300_TX_FORMAT_32F_32F | result;
 352                         case 4:
 353                             return R300_TX_FORMAT_32F_32F_32F_32F | result;
 354                     }
 355             }
 356     }
 357
 358     return ~0; /* Unsupported/unknown. */
 359 }
 360
 361 uint32_t r500_tx_format_msb_bit(enum pipe_format format)
 362 {
 363     switch (format) {
 364         case PIPE_FORMAT_RGTC1_UNORM:
 365         case PIPE_FORMAT_RGTC1_SNORM:
 366         case PIPE_FORMAT_X8Z24_UNORM:
 367         case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
 368             return R500_TXFORMAT_MSB;
 369         default:
 370             return 0;
 371     }
 372 }
 373
 374 /* Buffer formats. */
 375
 376 /* Colorbuffer formats. This is the unswizzled format of the RB3D block's
 377  * output. For the swizzling of the targets, check the shader's format. */
 378 static uint32_t r300_translate_colorformat(enum pipe_format format)
 379 {
 380     switch (format) {
 381         /* 8-bit buffers. */
 382         case PIPE_FORMAT_A8_UNORM:
 383         /*case PIPE_FORMAT_A8_SNORM:*/
 384         case PIPE_FORMAT_I8_UNORM:
 385         /*case PIPE_FORMAT_I8_SNORM:*/
 386         case PIPE_FORMAT_L8_UNORM:
 387         /*case PIPE_FORMAT_L8_SNORM:*/
 388         case PIPE_FORMAT_R8_UNORM:
 389         case PIPE_FORMAT_R8_SNORM:
 390             return R300_COLOR_FORMAT_I8;
 391
 392         /* 16-bit buffers. */
 393         case PIPE_FORMAT_L8A8_UNORM:
 394         /*case PIPE_FORMAT_L8A8_SNORM:*/
 395         case PIPE_FORMAT_R8G8_UNORM:
 396         case PIPE_FORMAT_R8G8_SNORM:
 397             return R300_COLOR_FORMAT_UV88;
 398
 399         case PIPE_FORMAT_B5G6R5_UNORM:
 400             return R300_COLOR_FORMAT_RGB565;
 401
 402         case PIPE_FORMAT_B5G5R5A1_UNORM:
 403         case PIPE_FORMAT_B5G5R5X1_UNORM:
 404             return R300_COLOR_FORMAT_ARGB1555;
 405
 406         case PIPE_FORMAT_B4G4R4A4_UNORM:
 407         case PIPE_FORMAT_B4G4R4X4_UNORM:
 408             return R300_COLOR_FORMAT_ARGB4444;
 409
 410         /* 32-bit buffers. */
 411         case PIPE_FORMAT_B8G8R8A8_UNORM:
 412         /*case PIPE_FORMAT_B8G8R8A8_SNORM:*/
 413         case PIPE_FORMAT_B8G8R8X8_UNORM:
 414         /*case PIPE_FORMAT_B8G8R8X8_SNORM:*/
 415         case PIPE_FORMAT_A8R8G8B8_UNORM:
 416         /*case PIPE_FORMAT_A8R8G8B8_SNORM:*/
 417         case PIPE_FORMAT_X8R8G8B8_UNORM:
 418         /*case PIPE_FORMAT_X8R8G8B8_SNORM:*/
 419         case PIPE_FORMAT_A8B8G8R8_UNORM:
 420         /*case PIPE_FORMAT_A8B8G8R8_SNORM:*/
 421         case PIPE_FORMAT_R8G8B8A8_UNORM:
 422         case PIPE_FORMAT_R8G8B8A8_SNORM:
 423         case PIPE_FORMAT_X8B8G8R8_UNORM:
 424         /*case PIPE_FORMAT_X8B8G8R8_SNORM:*/
 425         case PIPE_FORMAT_R8G8B8X8_UNORM:
 426         /*case PIPE_FORMAT_R8G8B8X8_SNORM:*/
 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_R8_UNORM:
 538         case PIPE_FORMAT_R8_SNORM:
 539             return modifier | R300_C2_SEL_R;
 540
 541         /* 16-bit outputs, two channels.
 542          * COLORFORMAT_UV88 stores C2 and C0. */
 543         case PIPE_FORMAT_L8A8_UNORM:
 544         /*case PIPE_FORMAT_L8A8_SNORM:*/
 545             return modifier | R300_C0_SEL_A | R300_C2_SEL_R;
 546         case PIPE_FORMAT_R8G8_UNORM:
 547         case PIPE_FORMAT_R8G8_SNORM:
 548             return modifier | R300_C0_SEL_G | R300_C2_SEL_R;
 549
 550         /* BGRA outputs. */
 551         case PIPE_FORMAT_B5G6R5_UNORM:
 552         case PIPE_FORMAT_B5G5R5A1_UNORM:
 553         case PIPE_FORMAT_B5G5R5X1_UNORM:
 554         case PIPE_FORMAT_B4G4R4A4_UNORM:
 555         case PIPE_FORMAT_B4G4R4X4_UNORM:
 556         case PIPE_FORMAT_B8G8R8A8_UNORM:
 557         /*case PIPE_FORMAT_B8G8R8A8_SNORM:*/
 558         case PIPE_FORMAT_B8G8R8X8_UNORM:
 559         /*case PIPE_FORMAT_B8G8R8X8_SNORM:*/
 560         case PIPE_FORMAT_B10G10R10A2_UNORM:
 561             return modifier |
 562                 R300_C0_SEL_B | R300_C1_SEL_G |
 563                 R300_C2_SEL_R | R300_C3_SEL_A;
 564
 565         /* ARGB outputs. */
 566         case PIPE_FORMAT_A8R8G8B8_UNORM:
 567         /*case PIPE_FORMAT_A8R8G8B8_SNORM:*/
 568         case PIPE_FORMAT_X8R8G8B8_UNORM:
 569         /*case PIPE_FORMAT_X8R8G8B8_SNORM:*/
 570             return modifier |
 571                 R300_C0_SEL_A | R300_C1_SEL_R |
 572                 R300_C2_SEL_G | R300_C3_SEL_B;
 573
 574         /* ABGR outputs. */
 575         case PIPE_FORMAT_A8B8G8R8_UNORM:
 576         /*case PIPE_FORMAT_A8B8G8R8_SNORM:*/
 577         case PIPE_FORMAT_X8B8G8R8_UNORM:
 578         /*case PIPE_FORMAT_X8B8G8R8_SNORM:*/
 579             return modifier |
 580                 R300_C0_SEL_A | R300_C1_SEL_B |
 581                 R300_C2_SEL_G | R300_C3_SEL_R;
 582
 583         /* RGBA outputs. */
 584         case PIPE_FORMAT_R8G8B8X8_UNORM:
 585         /*case PIPE_FORMAT_R8G8B8X8_SNORM:*/
 586         case PIPE_FORMAT_R8G8B8A8_UNORM:
 587         case PIPE_FORMAT_R8G8B8A8_SNORM:
 588         case PIPE_FORMAT_R8SG8SB8UX8U_NORM:
 589         case PIPE_FORMAT_R10G10B10A2_UNORM:
 590         case PIPE_FORMAT_R10G10B10X2_SNORM:
 591         case PIPE_FORMAT_R10SG10SB10SA2U_NORM:
 592         case PIPE_FORMAT_R16G16B16A16_UNORM:
 593         case PIPE_FORMAT_R16G16B16A16_SNORM:
 594         case PIPE_FORMAT_R16G16B16A16_FLOAT:
 595         case PIPE_FORMAT_R32G32B32A32_FLOAT:
 596             return modifier |
 597                 R300_C0_SEL_R | R300_C1_SEL_G |
 598                 R300_C2_SEL_B | R300_C3_SEL_A;
 599
 600         default:
 601             return ~0; /* Unsupported. */
 602     }
 603 }
 604
 605 boolean r300_is_colorbuffer_format_supported(enum pipe_format format)
 606 {
 607     return r300_translate_colorformat(format) != ~0 &&
 608            r300_translate_out_fmt(format) != ~0;
 609 }
 610
 611 boolean r300_is_zs_format_supported(enum pipe_format format)
 612 {
 613     return r300_translate_zsformat(format) != ~0;
 614 }
 615
 616 boolean r300_is_sampler_format_supported(enum pipe_format format)
 617 {
 618     return r300_translate_texformat(format, 0, TRUE, FALSE) != ~0;
 619 }
 620
 621 void r300_texture_setup_format_state(struct r300_screen *screen,
 622                                      struct r300_resource *tex,
 623                                      unsigned level,
 624                                      struct r300_texture_format_state *out)
 625 {
 626     struct pipe_resource *pt = &tex->b.b.b;
 627     struct r300_texture_desc *desc = &tex->tex;
 628     boolean is_r500 = screen->caps.is_r500;
 629
 630     /* Mask out all the fields we change. */
 631     out->format0 = 0;
 632     out->format1 &= ~R300_TX_FORMAT_TEX_COORD_TYPE_MASK;
 633     out->format2 &= R500_TXFORMAT_MSB;
 634     out->tile_config = 0;
 635
 636     /* Set sampler state. */
 637     out->format0 =
 638         R300_TX_WIDTH((u_minify(desc->width0, level) - 1) & 0x7ff) |
 639         R300_TX_HEIGHT((u_minify(desc->height0, level) - 1) & 0x7ff) |
 640         R300_TX_DEPTH(util_logbase2(u_minify(desc->depth0, level)) & 0xf);
 641
 642     if (desc->uses_stride_addressing) {
 643         /* rectangles love this */
 644         out->format0 |= R300_TX_PITCH_EN;
 645         out->format2 = (desc->stride_in_pixels[level] - 1) & 0x1fff;
 646     }
 647
 648     if (pt->target == PIPE_TEXTURE_CUBE) {
 649         out->format1 |= R300_TX_FORMAT_CUBIC_MAP;
 650     }
 651     if (pt->target == PIPE_TEXTURE_3D) {
 652         out->format1 |= R300_TX_FORMAT_3D;
 653     }
 654
 655     /* large textures on r500 */
 656     if (is_r500)
 657     {
 658         if (desc->width0 > 2048) {
 659             out->format2 |= R500_TXWIDTH_BIT11;
 660         }
 661         if (desc->height0 > 2048) {
 662             out->format2 |= R500_TXHEIGHT_BIT11;
 663         }
 664     }
 665
 666     out->tile_config = R300_TXO_MACRO_TILE(desc->macrotile[level]) |
 667                        R300_TXO_MICRO_TILE(desc->microtile);
 668 }
 669
 670 static void r300_texture_setup_fb_state(struct r300_surface *surf)
 671 {
 672     struct r300_resource *tex = r300_resource(surf->base.texture);
 673     unsigned level = surf->base.u.tex.level;
 674
 675     /* Set framebuffer state. */
 676     if (util_format_is_depth_or_stencil(surf->base.format)) {
 677         surf->pitch =
 678                 tex->tex.stride_in_pixels[level] |
 679                 R300_DEPTHMACROTILE(tex->tex.macrotile[level]) |
 680                 R300_DEPTHMICROTILE(tex->tex.microtile);
 681         surf->format = r300_translate_zsformat(surf->base.format);
 682         surf->pitch_zmask = tex->tex.zmask_stride_in_pixels[level];
 683         surf->pitch_hiz = tex->tex.hiz_stride_in_pixels[level];
 684     } else {
 685         surf->pitch =
 686                 tex->tex.stride_in_pixels[level] |
 687                 r300_translate_colorformat(surf->base.format) |
 688                 R300_COLOR_TILE(tex->tex.macrotile[level]) |
 689                 R300_COLOR_MICROTILE(tex->tex.microtile);
 690         surf->format = r300_translate_out_fmt(surf->base.format);
 691     }
 692 }
 693
 694 boolean r300_resource_set_properties(struct pipe_screen *screen,
 695                                      struct pipe_resource *tex,
 696                                      unsigned offset,
 697                                      const struct pipe_resource *new_properties)
 698 {
 699     struct r300_screen *rscreen = r300_screen(screen);
 700     struct r300_resource *res = r300_resource(tex);
 701
 702     SCREEN_DBG(rscreen, DBG_TEX,
 703         "r300: texture_set_properties: %s -> %s\n",
 704         util_format_short_name(tex->format),
 705         util_format_short_name(new_properties->format));
 706
 707     if (!r300_texture_desc_init(rscreen, res, new_properties)) {
 708         fprintf(stderr, "r300: ERROR: Cannot set texture properties.\n");
 709         return FALSE;
 710     }
 711     res->tex_offset = offset;
 712     r300_texture_setup_format_state(rscreen, res, 0, &res->tx_format);
 713
 714     return TRUE;
 715 }
 716
 717 static void r300_texture_destroy(struct pipe_screen *screen,
 718                                  struct pipe_resource* texture)
 719 {
 720     struct r300_resource* tex = (struct r300_resource*)texture;
 721
 722     r300_winsys_bo_reference(&tex->buf, NULL);
 723     FREE(tex);
 724 }
 725
 726 boolean r300_resource_get_handle(struct pipe_screen* screen,
 727                                  struct pipe_resource *texture,
 728                                  struct winsys_handle *whandle)
 729 {
 730     struct r300_winsys_screen *rws = (struct r300_winsys_screen *)screen->winsys;
 731     struct r300_resource* tex = (struct r300_resource*)texture;
 732
 733     if (!tex) {
 734         return FALSE;
 735     }
 736
 737     return rws->buffer_get_handle(tex->buf,
 738                                   tex->tex.stride_in_bytes[0], whandle);
 739 }
 740
 741 static const struct u_resource_vtbl r300_texture_vtbl =
 742 {
 743     NULL,                           /* get_handle */
 744     r300_texture_destroy,           /* resource_destroy */
 745     NULL,                           /* is_resource_referenced */
 746     r300_texture_get_transfer,      /* get_transfer */
 747     r300_texture_transfer_destroy,  /* transfer_destroy */
 748     r300_texture_transfer_map,      /* transfer_map */
 749     NULL,                           /* transfer_flush_region */
 750     r300_texture_transfer_unmap,    /* transfer_unmap */
 751     u_default_transfer_inline_write /* transfer_inline_write */
 752 };
 753
 754 /* The common texture constructor. */
 755 static struct r300_resource*
 756 r300_texture_create_object(struct r300_screen *rscreen,
 757                            const struct pipe_resource *base,
 758                            enum r300_buffer_tiling microtile,
 759                            enum r300_buffer_tiling macrotile,
 760                            unsigned stride_in_bytes_override,
 761                            unsigned max_buffer_size,
 762                            struct r300_winsys_bo *buffer)
 763 {
 764     struct r300_winsys_screen *rws = rscreen->rws;
 765     struct r300_resource *tex = CALLOC_STRUCT(r300_resource);
 766     if (!tex) {
 767         if (buffer)
 768             r300_winsys_bo_reference(&buffer, NULL);
 769         return NULL;
 770     }
 771
 772     pipe_reference_init(&tex->b.b.b.reference, 1);
 773     tex->b.b.b.screen = &rscreen->screen;
 774     tex->b.b.b.usage = base->usage;
 775     tex->b.b.b.bind = base->bind;
 776     tex->b.b.b.flags = base->flags;
 777     tex->b.b.vtbl = &r300_texture_vtbl;
 778     tex->tex.microtile = microtile;
 779     tex->tex.macrotile[0] = macrotile;
 780     tex->tex.stride_in_bytes_override = stride_in_bytes_override;
 781     tex->domain = base->flags & R300_RESOURCE_FLAG_TRANSFER ?
 782                   R300_DOMAIN_GTT :
 783                   R300_DOMAIN_VRAM | R300_DOMAIN_GTT;
 784     tex->buf_size = max_buffer_size;
 785
 786     if (!r300_resource_set_properties(&rscreen->screen, &tex->b.b.b, 0, base)) {
 787         if (buffer)
 788             r300_winsys_bo_reference(&buffer, NULL);
 789         FREE(tex);
 790         return NULL;
 791     }
 792
 793     /* Create the backing buffer if needed. */
 794     if (!buffer) {
 795         tex->buf_size = tex->tex.size_in_bytes;
 796         tex->buf = rws->buffer_create(rws, tex->tex.size_in_bytes, 2048,
 797                                          base->bind, base->usage, tex->domain);
 798
 799         if (!tex->buf) {
 800             FREE(tex);
 801             return NULL;
 802         }
 803     } else {
 804         tex->buf = buffer;
 805     }
 806
 807     tex->cs_buf = rws->buffer_get_cs_handle(tex->buf);
 808
 809     rws->buffer_set_tiling(tex->buf, NULL,
 810             tex->tex.microtile, tex->tex.macrotile[0],
 811             tex->tex.stride_in_bytes[0]);
 812
 813     return tex;
 814 }
 815
 816 /* Create a new texture. */
 817 struct pipe_resource *r300_texture_create(struct pipe_screen *screen,
 818                                           const struct pipe_resource *base)
 819 {
 820     struct r300_screen *rscreen = r300_screen(screen);
 821     enum r300_buffer_tiling microtile, macrotile;
 822
 823     if ((base->flags & R300_RESOURCE_FLAG_TRANSFER) ||
 824         (base->bind & PIPE_BIND_SCANOUT)) {
 825         microtile = R300_BUFFER_LINEAR;
 826         macrotile = R300_BUFFER_LINEAR;
 827     } else {
 828         microtile = R300_BUFFER_SELECT_LAYOUT;
 829         macrotile = R300_BUFFER_SELECT_LAYOUT;
 830     }
 831
 832     return (struct pipe_resource*)
 833            r300_texture_create_object(rscreen, base, microtile, macrotile,
 834                                       0, 0, NULL);
 835 }
 836
 837 struct pipe_resource *r300_texture_from_handle(struct pipe_screen *screen,
 838                                                const struct pipe_resource *base,
 839                                                struct winsys_handle *whandle)
 840 {
 841     struct r300_winsys_screen *rws = (struct r300_winsys_screen*)screen->winsys;
 842     struct r300_screen *rscreen = r300_screen(screen);
 843     struct r300_winsys_bo *buffer;
 844     enum r300_buffer_tiling microtile, macrotile;
 845     unsigned stride, size;
 846
 847     /* Support only 2D textures without mipmaps */
 848     if ((base->target != PIPE_TEXTURE_2D &&
 849           base->target != PIPE_TEXTURE_RECT) ||
 850         base->depth0 != 1 ||
 851         base->last_level != 0) {
 852         return NULL;
 853     }
 854
 855     buffer = rws->buffer_from_handle(rws, whandle, &stride, &size);
 856     if (!buffer)
 857         return NULL;
 858
 859     rws->buffer_get_tiling(buffer, &microtile, &macrotile);
 860
 861     /* Enforce a microtiled zbuffer. */
 862     if (util_format_is_depth_or_stencil(base->format) &&
 863         microtile == R300_BUFFER_LINEAR) {
 864         switch (util_format_get_blocksize(base->format)) {
 865             case 4:
 866                 microtile = R300_BUFFER_TILED;
 867                 break;
 868
 869             case 2:
 870                 if (rws->get_value(rws, R300_VID_DRM_2_1_0))
 871                     microtile = R300_BUFFER_SQUARETILED;
 872                 break;
 873         }
 874     }
 875
 876     return (struct pipe_resource*)
 877            r300_texture_create_object(rscreen, base, microtile, macrotile,
 878                                       stride, size, buffer);
 879 }
 880
 881 /* Not required to implement u_resource_vtbl, consider moving to another file:
 882  */
 883 struct pipe_surface* r300_create_surface(struct pipe_context * ctx,
 884                                          struct pipe_resource* texture,
 885                                          const struct pipe_surface *surf_tmpl)
 886 {
 887     struct r300_resource* tex = r300_resource(texture);
 888     struct r300_surface* surface = CALLOC_STRUCT(r300_surface);
 889     unsigned level = surf_tmpl->u.tex.level;
 890
 891     assert(surf_tmpl->u.tex.first_layer == surf_tmpl->u.tex.last_layer);
 892
 893     if (surface) {
 894         uint32_t offset, tile_height;
 895
 896         pipe_reference_init(&surface->base.reference, 1);
 897         pipe_resource_reference(&surface->base.texture, texture);
 898         surface->base.context = ctx;
 899         surface->base.format = surf_tmpl->format;
 900         surface->base.width = u_minify(texture->width0, level);
 901         surface->base.height = u_minify(texture->height0, level);
 902         surface->base.usage = surf_tmpl->usage;
 903         surface->base.u.tex.level = level;
 904         surface->base.u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 905         surface->base.u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 906
 907         surface->buf = tex->buf;
 908         surface->cs_buf = tex->cs_buf;
 909
 910         /* Prefer VRAM if there are multiple domains to choose from. */
 911         surface->domain = tex->domain;
 912         if (surface->domain & R300_DOMAIN_VRAM)
 913             surface->domain &= ~R300_DOMAIN_GTT;
 914
 915         surface->offset = r300_texture_get_offset(tex, level,
 916                                                   surf_tmpl->u.tex.first_layer);
 917         r300_texture_setup_fb_state(surface);
 918
 919         /* Parameters for the CBZB clear. */
 920         surface->cbzb_allowed = tex->tex.cbzb_allowed[level];
 921         surface->cbzb_width = align(surface->base.width, 64);
 922
 923         /* Height must be aligned to the size of a tile. */
 924         tile_height = r300_get_pixel_alignment(tex->b.b.b.format,
 925                                                tex->b.b.b.nr_samples,
 926                                                tex->tex.microtile,
 927                                                tex->tex.macrotile[level],
 928                                                DIM_HEIGHT, 0);
 929
 930         surface->cbzb_height = align((surface->base.height + 1) / 2,
 931                                      tile_height);
 932
 933         /* Offset must be aligned to 2K and must point at the beginning
 934          * of a scanline. */
 935         offset = surface->offset +
 936                  tex->tex.stride_in_bytes[level] * surface->cbzb_height;
 937         surface->cbzb_midpoint_offset = offset & ~2047;
 938
 939         surface->cbzb_pitch = surface->pitch & 0x1ffffc;
 940
 941         if (util_format_get_blocksizebits(surface->base.format) == 32)
 942             surface->cbzb_format = R300_DEPTHFORMAT_24BIT_INT_Z_8BIT_STENCIL;
 943         else
 944             surface->cbzb_format = R300_DEPTHFORMAT_16BIT_INT_Z;
 945
 946         DBG(r300_context(ctx), DBG_CBZB,
 947             "CBZB Allowed: %s, Dim: %ix%i, Misalignment: %i, Micro: %s, Macro: %s\n",
 948             surface->cbzb_allowed ? "YES" : " NO",
 949             surface->cbzb_width, surface->cbzb_height,
 950             offset & 2047,
 951             tex->tex.microtile ? "YES" : " NO",
 952             tex->tex.macrotile[level] ? "YES" : " NO");
 953     }
 954
 955     return &surface->base;
 956 }
 957
 958 /* Not required to implement u_resource_vtbl, consider moving to another file:
 959  */
 960 void r300_surface_destroy(struct pipe_context *ctx, struct pipe_surface* s)
 961 {
 962     pipe_resource_reference(&s->texture, NULL);
 963     FREE(s);
 964 }