src/mesa/state_tracker/st_format.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 VMware, Inc.
   4  * Copyright (c) 2008-2010 VMware, Inc.
   5  * All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the
   9  * "Software"), to deal in the Software without restriction, including
  10  * without limitation the rights to use, copy, modify, merge, publish,
  11  * distribute, sub license, and/or sell copies of the Software, and to
  12  * permit persons to whom the Software is furnished to do so, subject to
  13  * the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the
  16  * next paragraph) shall be included in all copies or substantial portions
  17  * of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  22  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  23  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  24  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  25  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26  *
  27  **************************************************************************/
  28
  29
  30 /**
  31  * Mesa / Gallium format conversion and format selection code.
  32  * \author Brian Paul
  33  */
  34
  35 #include "main/imports.h"
  36 #include "main/context.h"
  37 #include "main/enums.h"
  38 #include "main/formats.h"
  39 #include "main/glformats.h"
  40 #include "main/texcompress.h"
  41 #include "main/texgetimage.h"
  42 #include "main/teximage.h"
  43 #include "main/texstore.h"
  44 #include "main/image.h"
  45 #include "main/macros.h"
  46 #include "main/formatquery.h"
  47
  48 #include "pipe/p_context.h"
  49 #include "pipe/p_defines.h"
  50 #include "pipe/p_screen.h"
  51 #include "util/u_format.h"
  52 #include "st_cb_texture.h"
  53 #include "st_context.h"
  54 #include "st_format.h"
  55 #include "st_texture.h"
  56
  57
  58 /**
  59  * Translate Mesa format to Gallium format.
  60  */
  61 enum pipe_format
  62 st_mesa_format_to_pipe_format(const struct st_context *st,
  63                               mesa_format mesaFormat)
  64 {
  65    struct pipe_screen *screen = st->pipe->screen;
  66    bool has_bgra_srgb = screen->is_format_supported(screen,
  67                                                     PIPE_FORMAT_B8G8R8A8_SRGB,
  68                                                     PIPE_TEXTURE_2D, 0, 0,
  69                                                     PIPE_BIND_SAMPLER_VIEW);
  70
  71    switch (mesaFormat) {
  72    case MESA_FORMAT_A8B8G8R8_UNORM:
  73       return PIPE_FORMAT_ABGR8888_UNORM;
  74    case MESA_FORMAT_R8G8B8A8_UNORM:
  75       return PIPE_FORMAT_RGBA8888_UNORM;
  76    case MESA_FORMAT_B8G8R8A8_UNORM:
  77       return PIPE_FORMAT_BGRA8888_UNORM;
  78    case MESA_FORMAT_A8R8G8B8_UNORM:
  79       return PIPE_FORMAT_ARGB8888_UNORM;
  80    case MESA_FORMAT_X8B8G8R8_UNORM:
  81       return PIPE_FORMAT_XBGR8888_UNORM;
  82    case MESA_FORMAT_R8G8B8X8_UNORM:
  83       return PIPE_FORMAT_RGBX8888_UNORM;
  84    case MESA_FORMAT_B8G8R8X8_UNORM:
  85       return PIPE_FORMAT_BGRX8888_UNORM;
  86    case MESA_FORMAT_X8R8G8B8_UNORM:
  87       return PIPE_FORMAT_XRGB8888_UNORM;
  88    case MESA_FORMAT_B5G5R5A1_UNORM:
  89       return PIPE_FORMAT_B5G5R5A1_UNORM;
  90    case MESA_FORMAT_A1B5G5R5_UNORM:
  91       return PIPE_FORMAT_A1B5G5R5_UNORM;
  92    case MESA_FORMAT_B4G4R4A4_UNORM:
  93       return PIPE_FORMAT_B4G4R4A4_UNORM;
  94    case MESA_FORMAT_A4B4G4R4_UNORM:
  95       return PIPE_FORMAT_A4B4G4R4_UNORM;
  96    case MESA_FORMAT_B5G6R5_UNORM:
  97       return PIPE_FORMAT_B5G6R5_UNORM;
  98    case MESA_FORMAT_B2G3R3_UNORM:
  99       return PIPE_FORMAT_B2G3R3_UNORM;
 100    case MESA_FORMAT_B10G10R10A2_UNORM:
 101       return PIPE_FORMAT_B10G10R10A2_UNORM;
 102    case MESA_FORMAT_R10G10B10A2_UNORM:
 103       return PIPE_FORMAT_R10G10B10A2_UNORM;
 104    case MESA_FORMAT_R10G10B10X2_UNORM:
 105       return PIPE_FORMAT_R10G10B10X2_UNORM;
 106    case MESA_FORMAT_L4A4_UNORM:
 107       return PIPE_FORMAT_L4A4_UNORM;
 108    case MESA_FORMAT_L8A8_UNORM:
 109       return PIPE_FORMAT_LA88_UNORM;
 110    case MESA_FORMAT_A8L8_UNORM:
 111       return PIPE_FORMAT_AL88_UNORM;
 112    case MESA_FORMAT_L16A16_UNORM:
 113       return PIPE_FORMAT_LA1616_UNORM;
 114    case MESA_FORMAT_A16L16_UNORM:
 115       return PIPE_FORMAT_AL1616_UNORM;
 116    case MESA_FORMAT_A_UNORM8:
 117       return PIPE_FORMAT_A8_UNORM;
 118    case MESA_FORMAT_A_UNORM16:
 119       return PIPE_FORMAT_A16_UNORM;
 120    case MESA_FORMAT_L_UNORM8:
 121       return PIPE_FORMAT_L8_UNORM;
 122    case MESA_FORMAT_L_UNORM16:
 123       return PIPE_FORMAT_L16_UNORM;
 124    case MESA_FORMAT_I_UNORM8:
 125       return PIPE_FORMAT_I8_UNORM;
 126    case MESA_FORMAT_I_UNORM16:
 127       return PIPE_FORMAT_I16_UNORM;
 128    case MESA_FORMAT_Z_UNORM16:
 129       return PIPE_FORMAT_Z16_UNORM;
 130    case MESA_FORMAT_Z_UNORM32:
 131       return PIPE_FORMAT_Z32_UNORM;
 132    case MESA_FORMAT_S8_UINT_Z24_UNORM:
 133       return PIPE_FORMAT_S8_UINT_Z24_UNORM;
 134    case MESA_FORMAT_Z24_UNORM_S8_UINT:
 135       return PIPE_FORMAT_Z24_UNORM_S8_UINT;
 136    case MESA_FORMAT_X8_UINT_Z24_UNORM:
 137       return PIPE_FORMAT_X8Z24_UNORM;
 138    case MESA_FORMAT_Z24_UNORM_X8_UINT:
 139       return PIPE_FORMAT_Z24X8_UNORM;
 140    case MESA_FORMAT_S_UINT8:
 141       return PIPE_FORMAT_S8_UINT;
 142    case MESA_FORMAT_Z_FLOAT32:
 143       return PIPE_FORMAT_Z32_FLOAT;
 144    case MESA_FORMAT_Z32_FLOAT_S8X24_UINT:
 145       return PIPE_FORMAT_Z32_FLOAT_S8X24_UINT;
 146    case MESA_FORMAT_YCBCR:
 147       return PIPE_FORMAT_UYVY;
 148    case MESA_FORMAT_YCBCR_REV:
 149       return PIPE_FORMAT_YUYV;
 150    case MESA_FORMAT_RGB_DXT1:
 151       return PIPE_FORMAT_DXT1_RGB;
 152    case MESA_FORMAT_RGBA_DXT1:
 153       return PIPE_FORMAT_DXT1_RGBA;
 154    case MESA_FORMAT_RGBA_DXT3:
 155       return PIPE_FORMAT_DXT3_RGBA;
 156    case MESA_FORMAT_RGBA_DXT5:
 157       return PIPE_FORMAT_DXT5_RGBA;
 158    case MESA_FORMAT_SRGB_DXT1:
 159       return PIPE_FORMAT_DXT1_SRGB;
 160    case MESA_FORMAT_SRGBA_DXT1:
 161       return PIPE_FORMAT_DXT1_SRGBA;
 162    case MESA_FORMAT_SRGBA_DXT3:
 163       return PIPE_FORMAT_DXT3_SRGBA;
 164    case MESA_FORMAT_SRGBA_DXT5:
 165       return PIPE_FORMAT_DXT5_SRGBA;
 166    case MESA_FORMAT_L8A8_SRGB:
 167       return PIPE_FORMAT_LA88_SRGB;
 168    case MESA_FORMAT_A8L8_SRGB:
 169       return PIPE_FORMAT_AL88_SRGB;
 170    case MESA_FORMAT_L_SRGB8:
 171       return PIPE_FORMAT_L8_SRGB;
 172    case MESA_FORMAT_R_SRGB8:
 173       return PIPE_FORMAT_R8_SRGB;
 174    case MESA_FORMAT_BGR_SRGB8:
 175       return PIPE_FORMAT_R8G8B8_SRGB;
 176    case MESA_FORMAT_A8B8G8R8_SRGB:
 177       return PIPE_FORMAT_ABGR8888_SRGB;
 178    case MESA_FORMAT_R8G8B8A8_SRGB:
 179       return PIPE_FORMAT_RGBA8888_SRGB;
 180    case MESA_FORMAT_B8G8R8A8_SRGB:
 181       return PIPE_FORMAT_BGRA8888_SRGB;
 182    case MESA_FORMAT_A8R8G8B8_SRGB:
 183       return PIPE_FORMAT_ARGB8888_SRGB;
 184    case MESA_FORMAT_RGBA_FLOAT32:
 185       return PIPE_FORMAT_R32G32B32A32_FLOAT;
 186    case MESA_FORMAT_RGBA_FLOAT16:
 187       return PIPE_FORMAT_R16G16B16A16_FLOAT;
 188    case MESA_FORMAT_RGB_FLOAT32:
 189       return PIPE_FORMAT_R32G32B32_FLOAT;
 190    case MESA_FORMAT_RGB_FLOAT16:
 191       return PIPE_FORMAT_R16G16B16_FLOAT;
 192    case MESA_FORMAT_LA_FLOAT32:
 193       return PIPE_FORMAT_L32A32_FLOAT;
 194    case MESA_FORMAT_LA_FLOAT16:
 195       return PIPE_FORMAT_L16A16_FLOAT;
 196    case MESA_FORMAT_L_FLOAT32:
 197       return PIPE_FORMAT_L32_FLOAT;
 198    case MESA_FORMAT_L_FLOAT16:
 199       return PIPE_FORMAT_L16_FLOAT;
 200    case MESA_FORMAT_A_FLOAT32:
 201       return PIPE_FORMAT_A32_FLOAT;
 202    case MESA_FORMAT_A_FLOAT16:
 203       return PIPE_FORMAT_A16_FLOAT;
 204    case MESA_FORMAT_I_FLOAT32:
 205       return PIPE_FORMAT_I32_FLOAT;
 206    case MESA_FORMAT_I_FLOAT16:
 207       return PIPE_FORMAT_I16_FLOAT;
 208    case MESA_FORMAT_R_FLOAT32:
 209       return PIPE_FORMAT_R32_FLOAT;
 210    case MESA_FORMAT_R_FLOAT16:
 211       return PIPE_FORMAT_R16_FLOAT;
 212    case MESA_FORMAT_RG_FLOAT32:
 213       return PIPE_FORMAT_R32G32_FLOAT;
 214    case MESA_FORMAT_RG_FLOAT16:
 215       return PIPE_FORMAT_R16G16_FLOAT;
 216
 217    case MESA_FORMAT_R_UNORM8:
 218       return PIPE_FORMAT_R8_UNORM;
 219    case MESA_FORMAT_R_UNORM16:
 220       return PIPE_FORMAT_R16_UNORM;
 221    case MESA_FORMAT_R8G8_UNORM:
 222       return PIPE_FORMAT_RG88_UNORM;
 223    case MESA_FORMAT_G8R8_UNORM:
 224       return PIPE_FORMAT_GR88_UNORM;
 225    case MESA_FORMAT_R16G16_UNORM:
 226       return PIPE_FORMAT_RG1616_UNORM;
 227    case MESA_FORMAT_G16R16_UNORM:
 228       return PIPE_FORMAT_GR1616_UNORM;
 229    case MESA_FORMAT_RGBA_UNORM16:
 230       return PIPE_FORMAT_R16G16B16A16_UNORM;
 231
 232    /* signed int formats */
 233    case MESA_FORMAT_A_UINT8:
 234       return PIPE_FORMAT_A8_UINT;
 235    case MESA_FORMAT_A_UINT16:
 236       return PIPE_FORMAT_A16_UINT;
 237    case MESA_FORMAT_A_UINT32:
 238       return PIPE_FORMAT_A32_UINT;
 239
 240    case MESA_FORMAT_A_SINT8:
 241       return PIPE_FORMAT_A8_SINT;
 242    case MESA_FORMAT_A_SINT16:
 243       return PIPE_FORMAT_A16_SINT;
 244    case MESA_FORMAT_A_SINT32:
 245       return PIPE_FORMAT_A32_SINT;
 246
 247    case MESA_FORMAT_I_UINT8:
 248       return PIPE_FORMAT_I8_UINT;
 249    case MESA_FORMAT_I_UINT16:
 250       return PIPE_FORMAT_I16_UINT;
 251    case MESA_FORMAT_I_UINT32:
 252       return PIPE_FORMAT_I32_UINT;
 253
 254    case MESA_FORMAT_I_SINT8:
 255       return PIPE_FORMAT_I8_SINT;
 256    case MESA_FORMAT_I_SINT16:
 257       return PIPE_FORMAT_I16_SINT;
 258    case MESA_FORMAT_I_SINT32:
 259       return PIPE_FORMAT_I32_SINT;
 260
 261    case MESA_FORMAT_L_UINT8:
 262       return PIPE_FORMAT_L8_UINT;
 263    case MESA_FORMAT_L_UINT16:
 264       return PIPE_FORMAT_L16_UINT;
 265    case MESA_FORMAT_L_UINT32:
 266       return PIPE_FORMAT_L32_UINT;
 267
 268    case MESA_FORMAT_L_SINT8:
 269       return PIPE_FORMAT_L8_SINT;
 270    case MESA_FORMAT_L_SINT16:
 271       return PIPE_FORMAT_L16_SINT;
 272    case MESA_FORMAT_L_SINT32:
 273       return PIPE_FORMAT_L32_SINT;
 274
 275    case MESA_FORMAT_LA_UINT8:
 276       return PIPE_FORMAT_L8A8_UINT;
 277    case MESA_FORMAT_LA_UINT16:
 278       return PIPE_FORMAT_L16A16_UINT;
 279    case MESA_FORMAT_LA_UINT32:
 280       return PIPE_FORMAT_L32A32_UINT;
 281
 282    case MESA_FORMAT_LA_SINT8:
 283       return PIPE_FORMAT_L8A8_SINT;
 284    case MESA_FORMAT_LA_SINT16:
 285       return PIPE_FORMAT_L16A16_SINT;
 286    case MESA_FORMAT_LA_SINT32:
 287       return PIPE_FORMAT_L32A32_SINT;
 288
 289    case MESA_FORMAT_R_SINT8:
 290       return PIPE_FORMAT_R8_SINT;
 291    case MESA_FORMAT_RG_SINT8:
 292       return PIPE_FORMAT_R8G8_SINT;
 293    case MESA_FORMAT_RGB_SINT8:
 294       return PIPE_FORMAT_R8G8B8_SINT;
 295    case MESA_FORMAT_RGBA_SINT8:
 296       return PIPE_FORMAT_R8G8B8A8_SINT;
 297    case MESA_FORMAT_R_SINT16:
 298       return PIPE_FORMAT_R16_SINT;
 299    case MESA_FORMAT_RG_SINT16:
 300       return PIPE_FORMAT_R16G16_SINT;
 301    case MESA_FORMAT_RGB_SINT16:
 302       return PIPE_FORMAT_R16G16B16_SINT;
 303    case MESA_FORMAT_RGBA_SINT16:
 304       return PIPE_FORMAT_R16G16B16A16_SINT;
 305    case MESA_FORMAT_R_SINT32:
 306       return PIPE_FORMAT_R32_SINT;
 307    case MESA_FORMAT_RG_SINT32:
 308       return PIPE_FORMAT_R32G32_SINT;
 309    case MESA_FORMAT_RGB_SINT32:
 310       return PIPE_FORMAT_R32G32B32_SINT;
 311    case MESA_FORMAT_RGBA_SINT32:
 312       return PIPE_FORMAT_R32G32B32A32_SINT;
 313
 314    /* unsigned int formats */
 315    case MESA_FORMAT_R_UINT8:
 316       return PIPE_FORMAT_R8_UINT;
 317    case MESA_FORMAT_RG_UINT8:
 318       return PIPE_FORMAT_R8G8_UINT;
 319    case MESA_FORMAT_RGB_UINT8:
 320       return PIPE_FORMAT_R8G8B8_UINT;
 321    case MESA_FORMAT_RGBA_UINT8:
 322       return PIPE_FORMAT_R8G8B8A8_UINT;
 323    case MESA_FORMAT_R_UINT16:
 324       return PIPE_FORMAT_R16_UINT;
 325    case MESA_FORMAT_RG_UINT16:
 326       return PIPE_FORMAT_R16G16_UINT;
 327    case MESA_FORMAT_RGB_UINT16:
 328       return PIPE_FORMAT_R16G16B16_UINT;
 329    case MESA_FORMAT_RGBA_UINT16:
 330       return PIPE_FORMAT_R16G16B16A16_UINT;
 331    case MESA_FORMAT_R_UINT32:
 332       return PIPE_FORMAT_R32_UINT;
 333    case MESA_FORMAT_RG_UINT32:
 334       return PIPE_FORMAT_R32G32_UINT;
 335    case MESA_FORMAT_RGB_UINT32:
 336       return PIPE_FORMAT_R32G32B32_UINT;
 337    case MESA_FORMAT_RGBA_UINT32:
 338       return PIPE_FORMAT_R32G32B32A32_UINT;
 339
 340    case MESA_FORMAT_R_RGTC1_UNORM:
 341       return PIPE_FORMAT_RGTC1_UNORM;
 342    case MESA_FORMAT_R_RGTC1_SNORM:
 343       return PIPE_FORMAT_RGTC1_SNORM;
 344    case MESA_FORMAT_RG_RGTC2_UNORM:
 345       return PIPE_FORMAT_RGTC2_UNORM;
 346    case MESA_FORMAT_RG_RGTC2_SNORM:
 347       return PIPE_FORMAT_RGTC2_SNORM;
 348
 349    case MESA_FORMAT_L_LATC1_UNORM:
 350       return PIPE_FORMAT_LATC1_UNORM;
 351    case MESA_FORMAT_L_LATC1_SNORM:
 352       return PIPE_FORMAT_LATC1_SNORM;
 353    case MESA_FORMAT_LA_LATC2_UNORM:
 354       return PIPE_FORMAT_LATC2_UNORM;
 355    case MESA_FORMAT_LA_LATC2_SNORM:
 356       return PIPE_FORMAT_LATC2_SNORM;
 357
 358    /* The destination RGBA format mustn't be changed, because it's also
 359     * a destination format of the unpack/decompression function. */
 360    case MESA_FORMAT_ETC1_RGB8:
 361       return st->has_etc1 ? PIPE_FORMAT_ETC1_RGB8 : PIPE_FORMAT_R8G8B8A8_UNORM;
 362
 363    case MESA_FORMAT_BPTC_RGBA_UNORM:
 364       return PIPE_FORMAT_BPTC_RGBA_UNORM;
 365    case MESA_FORMAT_BPTC_SRGB_ALPHA_UNORM:
 366       return PIPE_FORMAT_BPTC_SRGBA;
 367    case MESA_FORMAT_BPTC_RGB_SIGNED_FLOAT:
 368       return PIPE_FORMAT_BPTC_RGB_FLOAT;
 369    case MESA_FORMAT_BPTC_RGB_UNSIGNED_FLOAT:
 370       return PIPE_FORMAT_BPTC_RGB_UFLOAT;
 371
 372    /* signed normalized formats */
 373    case MESA_FORMAT_R_SNORM8:
 374       return PIPE_FORMAT_R8_SNORM;
 375    case MESA_FORMAT_R8G8_SNORM:
 376       return PIPE_FORMAT_RG88_SNORM;
 377    case MESA_FORMAT_G8R8_SNORM:
 378       return PIPE_FORMAT_GR88_SNORM;
 379    case MESA_FORMAT_R8G8B8A8_SNORM:
 380       return PIPE_FORMAT_RGBA8888_SNORM;
 381    case MESA_FORMAT_A8B8G8R8_SNORM:
 382       return PIPE_FORMAT_ABGR8888_SNORM;
 383
 384    case MESA_FORMAT_A_SNORM8:
 385       return PIPE_FORMAT_A8_SNORM;
 386    case MESA_FORMAT_L_SNORM8:
 387       return PIPE_FORMAT_L8_SNORM;
 388    case MESA_FORMAT_L8A8_SNORM:
 389       return PIPE_FORMAT_LA88_SNORM;
 390    case MESA_FORMAT_A8L8_SNORM:
 391       return PIPE_FORMAT_AL88_SNORM;
 392    case MESA_FORMAT_I_SNORM8:
 393       return PIPE_FORMAT_I8_SNORM;
 394
 395    case MESA_FORMAT_R_SNORM16:
 396       return PIPE_FORMAT_R16_SNORM;
 397    case MESA_FORMAT_R16G16_SNORM:
 398       return PIPE_FORMAT_RG1616_SNORM;
 399    case MESA_FORMAT_G16R16_SNORM:
 400       return PIPE_FORMAT_GR1616_SNORM;
 401    case MESA_FORMAT_RGBA_SNORM16:
 402       return PIPE_FORMAT_R16G16B16A16_SNORM;
 403
 404    case MESA_FORMAT_A_SNORM16:
 405       return PIPE_FORMAT_A16_SNORM;
 406    case MESA_FORMAT_L_SNORM16:
 407       return PIPE_FORMAT_L16_SNORM;
 408    case MESA_FORMAT_LA_SNORM16:
 409       return PIPE_FORMAT_L16A16_SNORM;
 410    case MESA_FORMAT_I_SNORM16:
 411       return PIPE_FORMAT_I16_SNORM;
 412
 413    case MESA_FORMAT_R9G9B9E5_FLOAT:
 414       return PIPE_FORMAT_R9G9B9E5_FLOAT;
 415    case MESA_FORMAT_R11G11B10_FLOAT:
 416       return PIPE_FORMAT_R11G11B10_FLOAT;
 417    case MESA_FORMAT_B10G10R10A2_UINT:
 418       return PIPE_FORMAT_B10G10R10A2_UINT;
 419    case MESA_FORMAT_R10G10B10A2_UINT:
 420       return PIPE_FORMAT_R10G10B10A2_UINT;
 421
 422    case MESA_FORMAT_B4G4R4X4_UNORM:
 423       return PIPE_FORMAT_B4G4R4X4_UNORM;
 424    case MESA_FORMAT_B5G5R5X1_UNORM:
 425       return PIPE_FORMAT_B5G5R5X1_UNORM;
 426    case MESA_FORMAT_X1B5G5R5_UNORM:
 427       return PIPE_FORMAT_X1B5G5R5_UNORM;
 428    case MESA_FORMAT_R8G8B8X8_SNORM:
 429       return PIPE_FORMAT_RGBX8888_SNORM;
 430    case MESA_FORMAT_X8B8G8R8_SNORM:
 431       return PIPE_FORMAT_XBGR8888_SNORM;
 432    case MESA_FORMAT_R8G8B8X8_SRGB:
 433       return PIPE_FORMAT_RGBX8888_SRGB;
 434    case MESA_FORMAT_X8B8G8R8_SRGB:
 435       return PIPE_FORMAT_XBGR8888_SRGB;
 436    case MESA_FORMAT_RGBX_UINT8:
 437       return PIPE_FORMAT_R8G8B8X8_UINT;
 438    case MESA_FORMAT_RGBX_SINT8:
 439       return PIPE_FORMAT_R8G8B8X8_SINT;
 440    case MESA_FORMAT_B10G10R10X2_UNORM:
 441       return PIPE_FORMAT_B10G10R10X2_UNORM;
 442    case MESA_FORMAT_RGBX_UNORM16:
 443       return PIPE_FORMAT_R16G16B16X16_UNORM;
 444    case MESA_FORMAT_RGBX_SNORM16:
 445       return PIPE_FORMAT_R16G16B16X16_SNORM;
 446    case MESA_FORMAT_RGBX_FLOAT16:
 447       return PIPE_FORMAT_R16G16B16X16_FLOAT;
 448    case MESA_FORMAT_RGBX_UINT16:
 449       return PIPE_FORMAT_R16G16B16X16_UINT;
 450    case MESA_FORMAT_RGBX_SINT16:
 451       return PIPE_FORMAT_R16G16B16X16_SINT;
 452    case MESA_FORMAT_RGBX_FLOAT32:
 453       return PIPE_FORMAT_R32G32B32X32_FLOAT;
 454    case MESA_FORMAT_RGBX_UINT32:
 455       return PIPE_FORMAT_R32G32B32X32_UINT;
 456    case MESA_FORMAT_RGBX_SINT32:
 457       return PIPE_FORMAT_R32G32B32X32_SINT;
 458
 459    case MESA_FORMAT_B8G8R8X8_SRGB:
 460       return PIPE_FORMAT_BGRX8888_SRGB;
 461    case MESA_FORMAT_X8R8G8B8_SRGB:
 462       return PIPE_FORMAT_XRGB8888_SRGB;
 463
 464    /* ETC2 formats are emulated as uncompressed ones.
 465     * The destination formats mustn't be changed, because they are also
 466     * destination formats of the unpack/decompression function. */
 467    case MESA_FORMAT_ETC2_RGB8:
 468       return st->has_etc2 ? PIPE_FORMAT_ETC2_RGB8 : PIPE_FORMAT_R8G8B8A8_UNORM;
 469    case MESA_FORMAT_ETC2_SRGB8:
 470       return st->has_etc2 ? PIPE_FORMAT_ETC2_SRGB8 :
 471          has_bgra_srgb ? PIPE_FORMAT_B8G8R8A8_SRGB : PIPE_FORMAT_R8G8B8A8_SRGB;
 472    case MESA_FORMAT_ETC2_RGBA8_EAC:
 473       return st->has_etc2 ? PIPE_FORMAT_ETC2_RGBA8 : PIPE_FORMAT_R8G8B8A8_UNORM;
 474    case MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC:
 475       return st->has_etc2 ? PIPE_FORMAT_ETC2_SRGBA8 :
 476          has_bgra_srgb ? PIPE_FORMAT_B8G8R8A8_SRGB : PIPE_FORMAT_R8G8B8A8_SRGB;
 477    case MESA_FORMAT_ETC2_R11_EAC:
 478       return st->has_etc2 ? PIPE_FORMAT_ETC2_R11_UNORM : PIPE_FORMAT_R16_UNORM;
 479    case MESA_FORMAT_ETC2_RG11_EAC:
 480       return st->has_etc2 ? PIPE_FORMAT_ETC2_RG11_UNORM : PIPE_FORMAT_R16G16_UNORM;
 481    case MESA_FORMAT_ETC2_SIGNED_R11_EAC:
 482       return st->has_etc2 ? PIPE_FORMAT_ETC2_R11_SNORM : PIPE_FORMAT_R16_SNORM;
 483    case MESA_FORMAT_ETC2_SIGNED_RG11_EAC:
 484       return st->has_etc2 ? PIPE_FORMAT_ETC2_RG11_SNORM : PIPE_FORMAT_R16G16_SNORM;
 485    case MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1:
 486       return st->has_etc2 ? PIPE_FORMAT_ETC2_RGB8A1 : PIPE_FORMAT_R8G8B8A8_UNORM;
 487    case MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1:
 488       return st->has_etc2 ? PIPE_FORMAT_ETC2_SRGB8A1 :
 489          has_bgra_srgb ? PIPE_FORMAT_B8G8R8A8_SRGB : PIPE_FORMAT_R8G8B8A8_SRGB;
 490
 491    case MESA_FORMAT_RGBA_ASTC_4x4:
 492       if (!st->has_astc_2d_ldr)
 493          return PIPE_FORMAT_R8G8B8A8_UNORM;
 494       return PIPE_FORMAT_ASTC_4x4;
 495    case MESA_FORMAT_RGBA_ASTC_5x4:
 496       if (!st->has_astc_2d_ldr)
 497          return PIPE_FORMAT_R8G8B8A8_UNORM;
 498       return PIPE_FORMAT_ASTC_5x4;
 499    case MESA_FORMAT_RGBA_ASTC_5x5:
 500       if (!st->has_astc_2d_ldr)
 501          return PIPE_FORMAT_R8G8B8A8_UNORM;
 502       return PIPE_FORMAT_ASTC_5x5;
 503    case MESA_FORMAT_RGBA_ASTC_6x5:
 504       if (!st->has_astc_2d_ldr)
 505          return PIPE_FORMAT_R8G8B8A8_UNORM;
 506       return PIPE_FORMAT_ASTC_6x5;
 507    case MESA_FORMAT_RGBA_ASTC_6x6:
 508       if (!st->has_astc_2d_ldr)
 509          return PIPE_FORMAT_R8G8B8A8_UNORM;
 510       return PIPE_FORMAT_ASTC_6x6;
 511    case MESA_FORMAT_RGBA_ASTC_8x5:
 512       if (!st->has_astc_2d_ldr)
 513          return PIPE_FORMAT_R8G8B8A8_UNORM;
 514       return PIPE_FORMAT_ASTC_8x5;
 515    case MESA_FORMAT_RGBA_ASTC_8x6:
 516       if (!st->has_astc_2d_ldr)
 517          return PIPE_FORMAT_R8G8B8A8_UNORM;
 518       return PIPE_FORMAT_ASTC_8x6;
 519    case MESA_FORMAT_RGBA_ASTC_8x8:
 520       if (!st->has_astc_2d_ldr)
 521          return PIPE_FORMAT_R8G8B8A8_UNORM;
 522       return PIPE_FORMAT_ASTC_8x8;
 523    case MESA_FORMAT_RGBA_ASTC_10x5:
 524       if (!st->has_astc_2d_ldr)
 525          return PIPE_FORMAT_R8G8B8A8_UNORM;
 526       return PIPE_FORMAT_ASTC_10x5;
 527    case MESA_FORMAT_RGBA_ASTC_10x6:
 528       if (!st->has_astc_2d_ldr)
 529          return PIPE_FORMAT_R8G8B8A8_UNORM;
 530       return PIPE_FORMAT_ASTC_10x6;
 531    case MESA_FORMAT_RGBA_ASTC_10x8:
 532       if (!st->has_astc_2d_ldr)
 533          return PIPE_FORMAT_R8G8B8A8_UNORM;
 534       return PIPE_FORMAT_ASTC_10x8;
 535    case MESA_FORMAT_RGBA_ASTC_10x10:
 536       if (!st->has_astc_2d_ldr)
 537          return PIPE_FORMAT_R8G8B8A8_UNORM;
 538       return PIPE_FORMAT_ASTC_10x10;
 539    case MESA_FORMAT_RGBA_ASTC_12x10:
 540       if (!st->has_astc_2d_ldr)
 541          return PIPE_FORMAT_R8G8B8A8_UNORM;
 542       return PIPE_FORMAT_ASTC_12x10;
 543    case MESA_FORMAT_RGBA_ASTC_12x12:
 544       if (!st->has_astc_2d_ldr)
 545          return PIPE_FORMAT_R8G8B8A8_UNORM;
 546       return PIPE_FORMAT_ASTC_12x12;
 547
 548    case MESA_FORMAT_SRGB8_ALPHA8_ASTC_4x4:
 549       if (!st->has_astc_2d_ldr)
 550          return PIPE_FORMAT_R8G8B8A8_SRGB;
 551       return PIPE_FORMAT_ASTC_4x4_SRGB;
 552    case MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x4:
 553       if (!st->has_astc_2d_ldr)
 554          return PIPE_FORMAT_R8G8B8A8_SRGB;
 555       return PIPE_FORMAT_ASTC_5x4_SRGB;
 556    case MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x5:
 557       if (!st->has_astc_2d_ldr)
 558          return PIPE_FORMAT_R8G8B8A8_SRGB;
 559       return PIPE_FORMAT_ASTC_5x5_SRGB;
 560    case MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x5:
 561       if (!st->has_astc_2d_ldr)
 562          return PIPE_FORMAT_R8G8B8A8_SRGB;
 563       return PIPE_FORMAT_ASTC_6x5_SRGB;
 564    case MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x6:
 565       if (!st->has_astc_2d_ldr)
 566          return PIPE_FORMAT_R8G8B8A8_SRGB;
 567       return PIPE_FORMAT_ASTC_6x6_SRGB;
 568    case MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x5:
 569       if (!st->has_astc_2d_ldr)
 570          return PIPE_FORMAT_R8G8B8A8_SRGB;
 571       return PIPE_FORMAT_ASTC_8x5_SRGB;
 572    case MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x6:
 573       if (!st->has_astc_2d_ldr)
 574          return PIPE_FORMAT_R8G8B8A8_SRGB;
 575       return PIPE_FORMAT_ASTC_8x6_SRGB;
 576    case MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x8:
 577       if (!st->has_astc_2d_ldr)
 578          return PIPE_FORMAT_R8G8B8A8_SRGB;
 579       return PIPE_FORMAT_ASTC_8x8_SRGB;
 580    case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x5:
 581       if (!st->has_astc_2d_ldr)
 582          return PIPE_FORMAT_R8G8B8A8_SRGB;
 583       return PIPE_FORMAT_ASTC_10x5_SRGB;
 584    case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x6:
 585       if (!st->has_astc_2d_ldr)
 586          return PIPE_FORMAT_R8G8B8A8_SRGB;
 587       return PIPE_FORMAT_ASTC_10x6_SRGB;
 588    case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x8:
 589       if (!st->has_astc_2d_ldr)
 590          return PIPE_FORMAT_R8G8B8A8_SRGB;
 591       return PIPE_FORMAT_ASTC_10x8_SRGB;
 592    case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x10:
 593       if (!st->has_astc_2d_ldr)
 594          return PIPE_FORMAT_R8G8B8A8_SRGB;
 595       return PIPE_FORMAT_ASTC_10x10_SRGB;
 596    case MESA_FORMAT_SRGB8_ALPHA8_ASTC_12x10:
 597       if (!st->has_astc_2d_ldr)
 598          return PIPE_FORMAT_R8G8B8A8_SRGB;
 599       return PIPE_FORMAT_ASTC_12x10_SRGB;
 600    case MESA_FORMAT_SRGB8_ALPHA8_ASTC_12x12:
 601       if (!st->has_astc_2d_ldr)
 602          return PIPE_FORMAT_R8G8B8A8_SRGB;
 603       return PIPE_FORMAT_ASTC_12x12_SRGB;
 604
 605    case MESA_FORMAT_ATC_RGB:
 606       return PIPE_FORMAT_ATC_RGB;
 607    case MESA_FORMAT_ATC_RGBA_EXPLICIT:
 608       return PIPE_FORMAT_ATC_RGBA_EXPLICIT;
 609    case MESA_FORMAT_ATC_RGBA_INTERPOLATED:
 610       return PIPE_FORMAT_ATC_RGBA_INTERPOLATED;
 611
 612    default:
 613       return PIPE_FORMAT_NONE;
 614    }
 615 }
 616
 617
 618 /**
 619  * Translate Gallium format to Mesa format.
 620  */
 621 mesa_format
 622 st_pipe_format_to_mesa_format(enum pipe_format format)
 623 {
 624    switch (format) {
 625    case PIPE_FORMAT_ABGR8888_UNORM:
 626       return MESA_FORMAT_A8B8G8R8_UNORM;
 627    case PIPE_FORMAT_RGBA8888_UNORM:
 628       return MESA_FORMAT_R8G8B8A8_UNORM;
 629    case PIPE_FORMAT_BGRA8888_UNORM:
 630       return MESA_FORMAT_B8G8R8A8_UNORM;
 631    case PIPE_FORMAT_ARGB8888_UNORM:
 632       return MESA_FORMAT_A8R8G8B8_UNORM;
 633    case PIPE_FORMAT_XBGR8888_UNORM:
 634       return MESA_FORMAT_X8B8G8R8_UNORM;
 635    case PIPE_FORMAT_RGBX8888_UNORM:
 636       return MESA_FORMAT_R8G8B8X8_UNORM;
 637    case PIPE_FORMAT_BGRX8888_UNORM:
 638       return MESA_FORMAT_B8G8R8X8_UNORM;
 639    case PIPE_FORMAT_XRGB8888_UNORM:
 640       return MESA_FORMAT_X8R8G8B8_UNORM;
 641    case PIPE_FORMAT_B5G5R5A1_UNORM:
 642       return MESA_FORMAT_B5G5R5A1_UNORM;
 643    case PIPE_FORMAT_A1B5G5R5_UNORM:
 644       return MESA_FORMAT_A1B5G5R5_UNORM;
 645    case PIPE_FORMAT_B4G4R4A4_UNORM:
 646       return MESA_FORMAT_B4G4R4A4_UNORM;
 647    case PIPE_FORMAT_A4B4G4R4_UNORM:
 648       return MESA_FORMAT_A4B4G4R4_UNORM;
 649    case PIPE_FORMAT_B5G6R5_UNORM:
 650       return MESA_FORMAT_B5G6R5_UNORM;
 651    case PIPE_FORMAT_B2G3R3_UNORM:
 652       return MESA_FORMAT_B2G3R3_UNORM;
 653    case PIPE_FORMAT_B10G10R10A2_UNORM:
 654       return MESA_FORMAT_B10G10R10A2_UNORM;
 655    case PIPE_FORMAT_R10G10B10A2_UNORM:
 656       return MESA_FORMAT_R10G10B10A2_UNORM;
 657    case PIPE_FORMAT_R10G10B10X2_UNORM:
 658       return MESA_FORMAT_R10G10B10X2_UNORM;
 659    case PIPE_FORMAT_L4A4_UNORM:
 660       return MESA_FORMAT_L4A4_UNORM;
 661    case PIPE_FORMAT_LA88_UNORM:
 662       return MESA_FORMAT_L8A8_UNORM;
 663    case PIPE_FORMAT_AL88_UNORM:
 664       return MESA_FORMAT_A8L8_UNORM;
 665    case PIPE_FORMAT_LA1616_UNORM:
 666       return MESA_FORMAT_L16A16_UNORM;
 667    case PIPE_FORMAT_AL1616_UNORM:
 668       return MESA_FORMAT_A16L16_UNORM;
 669    case PIPE_FORMAT_A8_UNORM:
 670       return MESA_FORMAT_A_UNORM8;
 671    case PIPE_FORMAT_A16_UNORM:
 672       return MESA_FORMAT_A_UNORM16;
 673    case PIPE_FORMAT_L8_UNORM:
 674       return MESA_FORMAT_L_UNORM8;
 675    case PIPE_FORMAT_L16_UNORM:
 676       return MESA_FORMAT_L_UNORM16;
 677    case PIPE_FORMAT_I8_UNORM:
 678       return MESA_FORMAT_I_UNORM8;
 679    case PIPE_FORMAT_I16_UNORM:
 680       return MESA_FORMAT_I_UNORM16;
 681    case PIPE_FORMAT_S8_UINT:
 682       return MESA_FORMAT_S_UINT8;
 683
 684    case PIPE_FORMAT_R16G16B16A16_UNORM:
 685       return MESA_FORMAT_RGBA_UNORM16;
 686
 687    case PIPE_FORMAT_Z16_UNORM:
 688       return MESA_FORMAT_Z_UNORM16;
 689    case PIPE_FORMAT_Z32_UNORM:
 690       return MESA_FORMAT_Z_UNORM32;
 691    case PIPE_FORMAT_S8_UINT_Z24_UNORM:
 692       return MESA_FORMAT_S8_UINT_Z24_UNORM;
 693    case PIPE_FORMAT_X8Z24_UNORM:
 694       return MESA_FORMAT_X8_UINT_Z24_UNORM;
 695    case PIPE_FORMAT_Z24X8_UNORM:
 696       return MESA_FORMAT_Z24_UNORM_X8_UINT;
 697    case PIPE_FORMAT_Z24_UNORM_S8_UINT:
 698       return MESA_FORMAT_Z24_UNORM_S8_UINT;
 699    case PIPE_FORMAT_Z32_FLOAT:
 700       return MESA_FORMAT_Z_FLOAT32;
 701    case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
 702       return MESA_FORMAT_Z32_FLOAT_S8X24_UINT;
 703
 704    case PIPE_FORMAT_UYVY:
 705       return MESA_FORMAT_YCBCR;
 706    case PIPE_FORMAT_YUYV:
 707       return MESA_FORMAT_YCBCR_REV;
 708
 709    case PIPE_FORMAT_DXT1_RGB:
 710       return MESA_FORMAT_RGB_DXT1;
 711    case PIPE_FORMAT_DXT1_RGBA:
 712       return MESA_FORMAT_RGBA_DXT1;
 713    case PIPE_FORMAT_DXT3_RGBA:
 714       return MESA_FORMAT_RGBA_DXT3;
 715    case PIPE_FORMAT_DXT5_RGBA:
 716       return MESA_FORMAT_RGBA_DXT5;
 717    case PIPE_FORMAT_DXT1_SRGB:
 718       return MESA_FORMAT_SRGB_DXT1;
 719    case PIPE_FORMAT_DXT1_SRGBA:
 720       return MESA_FORMAT_SRGBA_DXT1;
 721    case PIPE_FORMAT_DXT3_SRGBA:
 722       return MESA_FORMAT_SRGBA_DXT3;
 723    case PIPE_FORMAT_DXT5_SRGBA:
 724       return MESA_FORMAT_SRGBA_DXT5;
 725    case PIPE_FORMAT_LA88_SRGB:
 726       return MESA_FORMAT_L8A8_SRGB;
 727    case PIPE_FORMAT_AL88_SRGB:
 728       return MESA_FORMAT_A8L8_SRGB;
 729    case PIPE_FORMAT_L8_SRGB:
 730       return MESA_FORMAT_L_SRGB8;
 731    case PIPE_FORMAT_R8_SRGB:
 732       return MESA_FORMAT_R_SRGB8;
 733    case PIPE_FORMAT_R8G8B8_SRGB:
 734       return MESA_FORMAT_BGR_SRGB8;
 735    case PIPE_FORMAT_ABGR8888_SRGB:
 736       return MESA_FORMAT_A8B8G8R8_SRGB;
 737    case PIPE_FORMAT_RGBA8888_SRGB:
 738       return MESA_FORMAT_R8G8B8A8_SRGB;
 739    case PIPE_FORMAT_BGRA8888_SRGB:
 740       return MESA_FORMAT_B8G8R8A8_SRGB;
 741    case PIPE_FORMAT_ARGB8888_SRGB:
 742       return MESA_FORMAT_A8R8G8B8_SRGB;
 743    case PIPE_FORMAT_R32G32B32A32_FLOAT:
 744       return MESA_FORMAT_RGBA_FLOAT32;
 745    case PIPE_FORMAT_R16G16B16A16_FLOAT:
 746       return MESA_FORMAT_RGBA_FLOAT16;
 747    case PIPE_FORMAT_R32G32B32_FLOAT:
 748       return MESA_FORMAT_RGB_FLOAT32;
 749    case PIPE_FORMAT_R16G16B16_FLOAT:
 750       return MESA_FORMAT_RGB_FLOAT16;
 751    case PIPE_FORMAT_L32A32_FLOAT:
 752       return MESA_FORMAT_LA_FLOAT32;
 753    case PIPE_FORMAT_L16A16_FLOAT:
 754       return MESA_FORMAT_LA_FLOAT16;
 755    case PIPE_FORMAT_L32_FLOAT:
 756       return MESA_FORMAT_L_FLOAT32;
 757    case PIPE_FORMAT_L16_FLOAT:
 758       return MESA_FORMAT_L_FLOAT16;
 759    case PIPE_FORMAT_A32_FLOAT:
 760       return MESA_FORMAT_A_FLOAT32;
 761    case PIPE_FORMAT_A16_FLOAT:
 762       return MESA_FORMAT_A_FLOAT16;
 763    case PIPE_FORMAT_I32_FLOAT:
 764       return MESA_FORMAT_I_FLOAT32;
 765    case PIPE_FORMAT_I16_FLOAT:
 766       return MESA_FORMAT_I_FLOAT16;
 767    case PIPE_FORMAT_R32_FLOAT:
 768       return MESA_FORMAT_R_FLOAT32;
 769    case PIPE_FORMAT_R16_FLOAT:
 770       return MESA_FORMAT_R_FLOAT16;
 771    case PIPE_FORMAT_R32G32_FLOAT:
 772       return MESA_FORMAT_RG_FLOAT32;
 773    case PIPE_FORMAT_R16G16_FLOAT:
 774       return MESA_FORMAT_RG_FLOAT16;
 775
 776    case PIPE_FORMAT_R8_UNORM:
 777       return MESA_FORMAT_R_UNORM8;
 778    case PIPE_FORMAT_R16_UNORM:
 779       return MESA_FORMAT_R_UNORM16;
 780    case PIPE_FORMAT_RG88_UNORM:
 781       return MESA_FORMAT_R8G8_UNORM;
 782    case PIPE_FORMAT_GR88_UNORM:
 783       return MESA_FORMAT_G8R8_UNORM;
 784    case PIPE_FORMAT_RG1616_UNORM:
 785       return MESA_FORMAT_R16G16_UNORM;
 786    case PIPE_FORMAT_GR1616_UNORM:
 787       return MESA_FORMAT_G16R16_UNORM;
 788
 789    case PIPE_FORMAT_A8_UINT:
 790       return MESA_FORMAT_A_UINT8;
 791    case PIPE_FORMAT_A16_UINT:
 792       return MESA_FORMAT_A_UINT16;
 793    case PIPE_FORMAT_A32_UINT:
 794       return MESA_FORMAT_A_UINT32;
 795    case PIPE_FORMAT_A8_SINT:
 796       return MESA_FORMAT_A_SINT8;
 797    case PIPE_FORMAT_A16_SINT:
 798       return MESA_FORMAT_A_SINT16;
 799    case PIPE_FORMAT_A32_SINT:
 800       return MESA_FORMAT_A_SINT32;
 801
 802    case PIPE_FORMAT_I8_UINT:
 803       return MESA_FORMAT_I_UINT8;
 804    case PIPE_FORMAT_I16_UINT:
 805       return MESA_FORMAT_I_UINT16;
 806    case PIPE_FORMAT_I32_UINT:
 807       return MESA_FORMAT_I_UINT32;
 808    case PIPE_FORMAT_I8_SINT:
 809       return MESA_FORMAT_I_SINT8;
 810    case PIPE_FORMAT_I16_SINT:
 811       return MESA_FORMAT_I_SINT16;
 812    case PIPE_FORMAT_I32_SINT:
 813       return MESA_FORMAT_I_SINT32;
 814
 815   case PIPE_FORMAT_L8_UINT:
 816       return MESA_FORMAT_L_UINT8;
 817    case PIPE_FORMAT_L16_UINT:
 818       return MESA_FORMAT_L_UINT16;
 819    case PIPE_FORMAT_L32_UINT:
 820       return MESA_FORMAT_L_UINT32;
 821    case PIPE_FORMAT_L8_SINT:
 822       return MESA_FORMAT_L_SINT8;
 823    case PIPE_FORMAT_L16_SINT:
 824       return MESA_FORMAT_L_SINT16;
 825    case PIPE_FORMAT_L32_SINT:
 826       return MESA_FORMAT_L_SINT32;
 827
 828    case PIPE_FORMAT_L8A8_UINT:
 829       return MESA_FORMAT_LA_UINT8;
 830    case PIPE_FORMAT_L16A16_UINT:
 831       return MESA_FORMAT_LA_UINT16;
 832    case PIPE_FORMAT_L32A32_UINT:
 833       return MESA_FORMAT_LA_UINT32;
 834    case PIPE_FORMAT_L8A8_SINT:
 835       return MESA_FORMAT_LA_SINT8;
 836    case PIPE_FORMAT_L16A16_SINT:
 837       return MESA_FORMAT_LA_SINT16;
 838    case PIPE_FORMAT_L32A32_SINT:
 839       return MESA_FORMAT_LA_SINT32;
 840
 841    case PIPE_FORMAT_R8_SINT:
 842       return MESA_FORMAT_R_SINT8;
 843    case PIPE_FORMAT_R8G8_SINT:
 844       return MESA_FORMAT_RG_SINT8;
 845    case PIPE_FORMAT_R8G8B8_SINT:
 846       return MESA_FORMAT_RGB_SINT8;
 847    case PIPE_FORMAT_R8G8B8A8_SINT:
 848       return MESA_FORMAT_RGBA_SINT8;
 849
 850    case PIPE_FORMAT_R16_SINT:
 851       return MESA_FORMAT_R_SINT16;
 852    case PIPE_FORMAT_R16G16_SINT:
 853       return MESA_FORMAT_RG_SINT16;
 854    case PIPE_FORMAT_R16G16B16_SINT:
 855       return MESA_FORMAT_RGB_SINT16;
 856    case PIPE_FORMAT_R16G16B16A16_SINT:
 857       return MESA_FORMAT_RGBA_SINT16;
 858
 859    case PIPE_FORMAT_R32_SINT:
 860       return MESA_FORMAT_R_SINT32;
 861    case PIPE_FORMAT_R32G32_SINT:
 862       return MESA_FORMAT_RG_SINT32;
 863    case PIPE_FORMAT_R32G32B32_SINT:
 864       return MESA_FORMAT_RGB_SINT32;
 865    case PIPE_FORMAT_R32G32B32A32_SINT:
 866       return MESA_FORMAT_RGBA_SINT32;
 867
 868    /* unsigned int formats */
 869    case PIPE_FORMAT_R8_UINT:
 870       return MESA_FORMAT_R_UINT8;
 871    case PIPE_FORMAT_R8G8_UINT:
 872       return MESA_FORMAT_RG_UINT8;
 873    case PIPE_FORMAT_R8G8B8_UINT:
 874       return MESA_FORMAT_RGB_UINT8;
 875    case PIPE_FORMAT_R8G8B8A8_UINT:
 876       return MESA_FORMAT_RGBA_UINT8;
 877
 878    case PIPE_FORMAT_R16_UINT:
 879       return MESA_FORMAT_R_UINT16;
 880    case PIPE_FORMAT_R16G16_UINT:
 881       return MESA_FORMAT_RG_UINT16;
 882    case PIPE_FORMAT_R16G16B16_UINT:
 883       return MESA_FORMAT_RGB_UINT16;
 884    case PIPE_FORMAT_R16G16B16A16_UINT:
 885       return MESA_FORMAT_RGBA_UINT16;
 886
 887    case PIPE_FORMAT_R32_UINT:
 888       return MESA_FORMAT_R_UINT32;
 889    case PIPE_FORMAT_R32G32_UINT:
 890       return MESA_FORMAT_RG_UINT32;
 891    case PIPE_FORMAT_R32G32B32_UINT:
 892       return MESA_FORMAT_RGB_UINT32;
 893    case PIPE_FORMAT_R32G32B32A32_UINT:
 894       return MESA_FORMAT_RGBA_UINT32;
 895
 896    case PIPE_FORMAT_RGTC1_UNORM:
 897       return MESA_FORMAT_R_RGTC1_UNORM;
 898    case PIPE_FORMAT_RGTC1_SNORM:
 899       return MESA_FORMAT_R_RGTC1_SNORM;
 900    case PIPE_FORMAT_RGTC2_UNORM:
 901       return MESA_FORMAT_RG_RGTC2_UNORM;
 902    case PIPE_FORMAT_RGTC2_SNORM:
 903       return MESA_FORMAT_RG_RGTC2_SNORM;
 904
 905    case PIPE_FORMAT_LATC1_UNORM:
 906       return MESA_FORMAT_L_LATC1_UNORM;
 907    case PIPE_FORMAT_LATC1_SNORM:
 908       return MESA_FORMAT_L_LATC1_SNORM;
 909    case PIPE_FORMAT_LATC2_UNORM:
 910       return MESA_FORMAT_LA_LATC2_UNORM;
 911    case PIPE_FORMAT_LATC2_SNORM:
 912       return MESA_FORMAT_LA_LATC2_SNORM;
 913
 914    case PIPE_FORMAT_ETC1_RGB8:
 915       return MESA_FORMAT_ETC1_RGB8;
 916
 917    case PIPE_FORMAT_BPTC_RGBA_UNORM:
 918       return MESA_FORMAT_BPTC_RGBA_UNORM;
 919    case PIPE_FORMAT_BPTC_SRGBA:
 920       return MESA_FORMAT_BPTC_SRGB_ALPHA_UNORM;
 921    case PIPE_FORMAT_BPTC_RGB_FLOAT:
 922       return MESA_FORMAT_BPTC_RGB_SIGNED_FLOAT;
 923    case PIPE_FORMAT_BPTC_RGB_UFLOAT:
 924       return MESA_FORMAT_BPTC_RGB_UNSIGNED_FLOAT;
 925
 926    /* signed normalized formats */
 927    case PIPE_FORMAT_R8_SNORM:
 928       return MESA_FORMAT_R_SNORM8;
 929    case PIPE_FORMAT_RG88_SNORM:
 930       return MESA_FORMAT_R8G8_SNORM;
 931    case PIPE_FORMAT_GR88_SNORM:
 932       return MESA_FORMAT_G8R8_SNORM;
 933    case PIPE_FORMAT_RGBA8888_SNORM:
 934       return MESA_FORMAT_R8G8B8A8_SNORM;
 935    case PIPE_FORMAT_ABGR8888_SNORM:
 936       return MESA_FORMAT_A8B8G8R8_SNORM;
 937
 938    case PIPE_FORMAT_A8_SNORM:
 939       return MESA_FORMAT_A_SNORM8;
 940    case PIPE_FORMAT_L8_SNORM:
 941       return MESA_FORMAT_L_SNORM8;
 942    case PIPE_FORMAT_LA88_SNORM:
 943       return MESA_FORMAT_L8A8_SNORM;
 944    case PIPE_FORMAT_AL88_SNORM:
 945       return MESA_FORMAT_A8L8_SNORM;
 946    case PIPE_FORMAT_I8_SNORM:
 947       return MESA_FORMAT_I_SNORM8;
 948
 949    case PIPE_FORMAT_R16_SNORM:
 950       return MESA_FORMAT_R_SNORM16;
 951    case PIPE_FORMAT_RG1616_SNORM:
 952       return MESA_FORMAT_R16G16_SNORM;
 953    case PIPE_FORMAT_GR1616_SNORM:
 954       return MESA_FORMAT_G16R16_SNORM;
 955    case PIPE_FORMAT_R16G16B16A16_SNORM:
 956       return MESA_FORMAT_RGBA_SNORM16;
 957
 958    case PIPE_FORMAT_A16_SNORM:
 959       return MESA_FORMAT_A_SNORM16;
 960    case PIPE_FORMAT_L16_SNORM:
 961       return MESA_FORMAT_L_SNORM16;
 962    case PIPE_FORMAT_L16A16_SNORM:
 963       return MESA_FORMAT_LA_SNORM16;
 964    case PIPE_FORMAT_I16_SNORM:
 965       return MESA_FORMAT_I_SNORM16;
 966
 967    case PIPE_FORMAT_R9G9B9E5_FLOAT:
 968       return MESA_FORMAT_R9G9B9E5_FLOAT;
 969    case PIPE_FORMAT_R11G11B10_FLOAT:
 970       return MESA_FORMAT_R11G11B10_FLOAT;
 971
 972    case PIPE_FORMAT_B10G10R10A2_UINT:
 973       return MESA_FORMAT_B10G10R10A2_UINT;
 974    case PIPE_FORMAT_R10G10B10A2_UINT:
 975       return MESA_FORMAT_R10G10B10A2_UINT;
 976
 977    case PIPE_FORMAT_B4G4R4X4_UNORM:
 978       return MESA_FORMAT_B4G4R4X4_UNORM;
 979    case PIPE_FORMAT_B5G5R5X1_UNORM:
 980       return MESA_FORMAT_B5G5R5X1_UNORM;
 981    case PIPE_FORMAT_X1B5G5R5_UNORM:
 982       return MESA_FORMAT_X1B5G5R5_UNORM;
 983    case PIPE_FORMAT_RGBX8888_SNORM:
 984       return MESA_FORMAT_R8G8B8X8_SNORM;
 985    case PIPE_FORMAT_XBGR8888_SNORM:
 986       return MESA_FORMAT_X8B8G8R8_SNORM;
 987    case PIPE_FORMAT_RGBX8888_SRGB:
 988       return MESA_FORMAT_R8G8B8X8_SRGB;
 989    case PIPE_FORMAT_XBGR8888_SRGB:
 990       return MESA_FORMAT_X8B8G8R8_SRGB;
 991    case PIPE_FORMAT_R8G8B8X8_UINT:
 992       return MESA_FORMAT_RGBX_UINT8;
 993    case PIPE_FORMAT_R8G8B8X8_SINT:
 994       return MESA_FORMAT_RGBX_SINT8;
 995    case PIPE_FORMAT_B10G10R10X2_UNORM:
 996       return MESA_FORMAT_B10G10R10X2_UNORM;
 997    case PIPE_FORMAT_R16G16B16X16_UNORM:
 998       return MESA_FORMAT_RGBX_UNORM16;
 999    case PIPE_FORMAT_R16G16B16X16_SNORM:
1000       return MESA_FORMAT_RGBX_SNORM16;
1001    case PIPE_FORMAT_R16G16B16X16_FLOAT:
1002       return MESA_FORMAT_RGBX_FLOAT16;
1003    case PIPE_FORMAT_R16G16B16X16_UINT:
1004       return MESA_FORMAT_RGBX_UINT16;
1005    case PIPE_FORMAT_R16G16B16X16_SINT:
1006       return MESA_FORMAT_RGBX_SINT16;
1007    case PIPE_FORMAT_R32G32B32X32_FLOAT:
1008       return MESA_FORMAT_RGBX_FLOAT32;
1009    case PIPE_FORMAT_R32G32B32X32_UINT:
1010       return MESA_FORMAT_RGBX_UINT32;
1011    case PIPE_FORMAT_R32G32B32X32_SINT:
1012       return MESA_FORMAT_RGBX_SINT32;
1013
1014    case PIPE_FORMAT_BGRX8888_SRGB:
1015       return MESA_FORMAT_B8G8R8X8_SRGB;
1016    case PIPE_FORMAT_XRGB8888_SRGB:
1017       return MESA_FORMAT_X8R8G8B8_SRGB;
1018
1019    case PIPE_FORMAT_ETC2_RGB8:
1020       return MESA_FORMAT_ETC2_RGB8;
1021    case PIPE_FORMAT_ETC2_SRGB8:
1022       return MESA_FORMAT_ETC2_SRGB8;
1023    case PIPE_FORMAT_ETC2_RGB8A1:
1024       return MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1;
1025    case PIPE_FORMAT_ETC2_SRGB8A1:
1026       return MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1;
1027    case PIPE_FORMAT_ETC2_RGBA8:
1028       return MESA_FORMAT_ETC2_RGBA8_EAC;
1029    case PIPE_FORMAT_ETC2_SRGBA8:
1030       return MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC;
1031    case PIPE_FORMAT_ETC2_R11_UNORM:
1032       return MESA_FORMAT_ETC2_R11_EAC;
1033    case PIPE_FORMAT_ETC2_R11_SNORM:
1034       return MESA_FORMAT_ETC2_SIGNED_R11_EAC;
1035    case PIPE_FORMAT_ETC2_RG11_UNORM:
1036       return MESA_FORMAT_ETC2_RG11_EAC;
1037    case PIPE_FORMAT_ETC2_RG11_SNORM:
1038       return MESA_FORMAT_ETC2_SIGNED_RG11_EAC;
1039
1040    case PIPE_FORMAT_ASTC_4x4:
1041       return MESA_FORMAT_RGBA_ASTC_4x4;
1042    case PIPE_FORMAT_ASTC_5x4:
1043       return MESA_FORMAT_RGBA_ASTC_5x4;
1044    case PIPE_FORMAT_ASTC_5x5:
1045       return MESA_FORMAT_RGBA_ASTC_5x5;
1046    case PIPE_FORMAT_ASTC_6x5:
1047       return MESA_FORMAT_RGBA_ASTC_6x5;
1048    case PIPE_FORMAT_ASTC_6x6:
1049       return MESA_FORMAT_RGBA_ASTC_6x6;
1050    case PIPE_FORMAT_ASTC_8x5:
1051       return MESA_FORMAT_RGBA_ASTC_8x5;
1052    case PIPE_FORMAT_ASTC_8x6:
1053       return MESA_FORMAT_RGBA_ASTC_8x6;
1054    case PIPE_FORMAT_ASTC_8x8:
1055       return MESA_FORMAT_RGBA_ASTC_8x8;
1056    case PIPE_FORMAT_ASTC_10x5:
1057       return MESA_FORMAT_RGBA_ASTC_10x5;
1058    case PIPE_FORMAT_ASTC_10x6:
1059       return MESA_FORMAT_RGBA_ASTC_10x6;
1060    case PIPE_FORMAT_ASTC_10x8:
1061       return MESA_FORMAT_RGBA_ASTC_10x8;
1062    case PIPE_FORMAT_ASTC_10x10:
1063       return MESA_FORMAT_RGBA_ASTC_10x10;
1064    case PIPE_FORMAT_ASTC_12x10:
1065       return MESA_FORMAT_RGBA_ASTC_12x10;
1066    case PIPE_FORMAT_ASTC_12x12:
1067       return MESA_FORMAT_RGBA_ASTC_12x12;
1068
1069    case PIPE_FORMAT_ASTC_4x4_SRGB:
1070       return MESA_FORMAT_SRGB8_ALPHA8_ASTC_4x4;
1071    case PIPE_FORMAT_ASTC_5x4_SRGB:
1072       return MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x4;
1073    case PIPE_FORMAT_ASTC_5x5_SRGB:
1074       return MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x5;
1075    case PIPE_FORMAT_ASTC_6x5_SRGB:
1076       return MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x5;
1077    case PIPE_FORMAT_ASTC_6x6_SRGB:
1078       return MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x6;
1079    case PIPE_FORMAT_ASTC_8x5_SRGB:
1080       return MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x5;
1081    case PIPE_FORMAT_ASTC_8x6_SRGB:
1082       return MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x6;
1083    case PIPE_FORMAT_ASTC_8x8_SRGB:
1084       return MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x8;
1085    case PIPE_FORMAT_ASTC_10x5_SRGB:
1086       return MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x5;
1087    case PIPE_FORMAT_ASTC_10x6_SRGB:
1088       return MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x6;
1089    case PIPE_FORMAT_ASTC_10x8_SRGB:
1090       return MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x8;
1091    case PIPE_FORMAT_ASTC_10x10_SRGB:
1092       return MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x10;
1093    case PIPE_FORMAT_ASTC_12x10_SRGB:
1094       return MESA_FORMAT_SRGB8_ALPHA8_ASTC_12x10;
1095    case PIPE_FORMAT_ASTC_12x12_SRGB:
1096       return MESA_FORMAT_SRGB8_ALPHA8_ASTC_12x12;
1097
1098    case PIPE_FORMAT_ATC_RGB:
1099       return MESA_FORMAT_ATC_RGB;
1100    case PIPE_FORMAT_ATC_RGBA_EXPLICIT:
1101       return MESA_FORMAT_ATC_RGBA_EXPLICIT;
1102    case PIPE_FORMAT_ATC_RGBA_INTERPOLATED:
1103       return MESA_FORMAT_ATC_RGBA_INTERPOLATED;
1104
1105    default:
1106       return MESA_FORMAT_NONE;
1107    }
1108 }
1109
1110 /**
1111  * Map GL texture formats to Gallium pipe formats.
1112  */
1113 struct format_mapping
1114 {
1115    GLenum glFormats[18];       /**< list of GLenum formats, 0-terminated */
1116    enum pipe_format pipeFormats[14]; /**< list of pipe formats, 0-terminated */
1117 };
1118
1119
1120 #define DEFAULT_RGBA_FORMATS \
1121       PIPE_FORMAT_R8G8B8A8_UNORM, \
1122       PIPE_FORMAT_B8G8R8A8_UNORM, \
1123       PIPE_FORMAT_A8R8G8B8_UNORM, \
1124       PIPE_FORMAT_A8B8G8R8_UNORM, \
1125       0
1126
1127 #define DEFAULT_RGB_FORMATS \
1128       PIPE_FORMAT_R8G8B8X8_UNORM, \
1129       PIPE_FORMAT_B8G8R8X8_UNORM, \
1130       PIPE_FORMAT_X8R8G8B8_UNORM, \
1131       PIPE_FORMAT_X8B8G8R8_UNORM, \
1132       PIPE_FORMAT_B5G6R5_UNORM, \
1133       DEFAULT_RGBA_FORMATS
1134
1135 #define DEFAULT_SRGBA_FORMATS \
1136       PIPE_FORMAT_R8G8B8A8_SRGB, \
1137       PIPE_FORMAT_B8G8R8A8_SRGB, \
1138       PIPE_FORMAT_A8R8G8B8_SRGB, \
1139       PIPE_FORMAT_A8B8G8R8_SRGB, \
1140       0
1141
1142 #define DEFAULT_DEPTH_FORMATS \
1143       PIPE_FORMAT_Z24X8_UNORM, \
1144       PIPE_FORMAT_X8Z24_UNORM, \
1145       PIPE_FORMAT_Z16_UNORM, \
1146       PIPE_FORMAT_Z24_UNORM_S8_UINT, \
1147       PIPE_FORMAT_S8_UINT_Z24_UNORM, \
1148       0
1149
1150 #define DEFAULT_SNORM8_RGBA_FORMATS \
1151       PIPE_FORMAT_R8G8B8A8_SNORM, \
1152       0
1153
1154 #define DEFAULT_UNORM16_RGBA_FORMATS \
1155       PIPE_FORMAT_R16G16B16A16_UNORM, \
1156       DEFAULT_RGBA_FORMATS
1157
1158
1159 /**
1160  * This table maps OpenGL texture format enums to Gallium pipe_format enums.
1161  * Multiple GL enums might map to multiple pipe_formats.
1162  * The first pipe format in the list that's supported is the one that's chosen.
1163  */
1164 static const struct format_mapping format_map[] = {
1165    /* Basic RGB, RGBA formats */
1166    {
1167       { GL_RGB10, 0 },
1168       { PIPE_FORMAT_R10G10B10X2_UNORM, PIPE_FORMAT_B10G10R10X2_UNORM,
1169         PIPE_FORMAT_R10G10B10A2_UNORM, PIPE_FORMAT_B10G10R10A2_UNORM,
1170         DEFAULT_RGB_FORMATS }
1171    },
1172    {
1173       { GL_RGB10_A2, 0 },
1174       { PIPE_FORMAT_R10G10B10A2_UNORM, PIPE_FORMAT_B10G10R10A2_UNORM,
1175         DEFAULT_RGBA_FORMATS }
1176    },
1177    {
1178       { 4, GL_RGBA, GL_RGBA8, 0 },
1179       { PIPE_FORMAT_R8G8B8A8_UNORM, DEFAULT_RGBA_FORMATS }
1180    },
1181    {
1182       { GL_BGRA, 0 },
1183       { DEFAULT_RGBA_FORMATS }
1184    },
1185    {
1186       { 3, GL_RGB, GL_RGB8, 0 },
1187       { PIPE_FORMAT_R8G8B8X8_UNORM, DEFAULT_RGB_FORMATS }
1188    },
1189    {
1190       { GL_RGB12, GL_RGB16, 0 },
1191       { PIPE_FORMAT_R16G16B16X16_UNORM, PIPE_FORMAT_R16G16B16A16_UNORM,
1192         DEFAULT_RGB_FORMATS }
1193    },
1194    {
1195       { GL_RGBA12, GL_RGBA16, 0 },
1196       { PIPE_FORMAT_R16G16B16A16_UNORM, DEFAULT_RGBA_FORMATS }
1197    },
1198    {
1199       { GL_RGBA4, GL_RGBA2, 0 },
1200       { PIPE_FORMAT_B4G4R4A4_UNORM, PIPE_FORMAT_A4B4G4R4_UNORM,
1201         DEFAULT_RGBA_FORMATS }
1202    },
1203    {
1204       { GL_RGB5_A1, 0 },
1205       { PIPE_FORMAT_B5G5R5A1_UNORM, PIPE_FORMAT_A1B5G5R5_UNORM,
1206         DEFAULT_RGBA_FORMATS }
1207    },
1208    {
1209       { GL_R3_G3_B2, 0 },
1210       { PIPE_FORMAT_B2G3R3_UNORM, PIPE_FORMAT_B5G6R5_UNORM,
1211         PIPE_FORMAT_B5G5R5A1_UNORM, DEFAULT_RGB_FORMATS }
1212    },
1213    {
1214       { GL_RGB4 },
1215       { PIPE_FORMAT_B4G4R4X4_UNORM, PIPE_FORMAT_B4G4R4A4_UNORM,
1216         PIPE_FORMAT_A4B4G4R4_UNORM,
1217         DEFAULT_RGB_FORMATS }
1218    },
1219    {
1220       { GL_RGB5 },
1221       { PIPE_FORMAT_B5G5R5X1_UNORM, PIPE_FORMAT_X1B5G5R5_UNORM,
1222         PIPE_FORMAT_B5G5R5A1_UNORM, PIPE_FORMAT_A1B5G5R5_UNORM,
1223         DEFAULT_RGB_FORMATS }
1224    },
1225    {
1226       { GL_RGB565 },
1227       { PIPE_FORMAT_B5G6R5_UNORM, DEFAULT_RGB_FORMATS }
1228    },
1229
1230    /* basic Alpha formats */
1231    {
1232       { GL_ALPHA12, GL_ALPHA16, 0 },
1233       { PIPE_FORMAT_A16_UNORM, PIPE_FORMAT_R16G16B16A16_UNORM,
1234         PIPE_FORMAT_A8_UNORM, DEFAULT_RGBA_FORMATS }
1235    },
1236    {
1237       { GL_ALPHA, GL_ALPHA4, GL_ALPHA8, GL_COMPRESSED_ALPHA, 0 },
1238       { PIPE_FORMAT_A8_UNORM, DEFAULT_RGBA_FORMATS }
1239    },
1240
1241    /* basic Luminance formats */
1242    {
1243       { GL_LUMINANCE12, GL_LUMINANCE16, 0 },
1244       { PIPE_FORMAT_L16_UNORM, PIPE_FORMAT_R16G16B16A16_UNORM,
1245         PIPE_FORMAT_L8_UNORM, DEFAULT_RGB_FORMATS }
1246    },
1247    {
1248       { 1, GL_LUMINANCE, GL_LUMINANCE4, GL_LUMINANCE8, 0 },
1249       { PIPE_FORMAT_L8_UNORM, PIPE_FORMAT_L8A8_UNORM, DEFAULT_RGB_FORMATS }
1250    },
1251
1252    /* basic Luminance/Alpha formats */
1253    {
1254       { GL_LUMINANCE12_ALPHA4, GL_LUMINANCE12_ALPHA12,
1255         GL_LUMINANCE16_ALPHA16, 0},
1256       { PIPE_FORMAT_L16A16_UNORM, PIPE_FORMAT_R16G16B16A16_UNORM,
1257         PIPE_FORMAT_L8A8_UNORM, DEFAULT_RGBA_FORMATS }
1258    },
1259    {
1260       { 2, GL_LUMINANCE_ALPHA, GL_LUMINANCE6_ALPHA2, GL_LUMINANCE8_ALPHA8, 0 },
1261       { PIPE_FORMAT_L8A8_UNORM, DEFAULT_RGBA_FORMATS }
1262    },
1263    {
1264       { GL_LUMINANCE4_ALPHA4, 0 },
1265       { PIPE_FORMAT_L4A4_UNORM, PIPE_FORMAT_L8A8_UNORM,
1266         DEFAULT_RGBA_FORMATS }
1267    },
1268
1269    /* basic Intensity formats */
1270    {
1271       { GL_INTENSITY12, GL_INTENSITY16, 0 },
1272       { PIPE_FORMAT_I16_UNORM, PIPE_FORMAT_R16G16B16A16_UNORM,
1273         PIPE_FORMAT_I8_UNORM, DEFAULT_RGBA_FORMATS }
1274    },
1275    {
1276       { GL_INTENSITY, GL_INTENSITY4, GL_INTENSITY8,
1277         GL_COMPRESSED_INTENSITY, 0 },
1278       { PIPE_FORMAT_I8_UNORM, DEFAULT_RGBA_FORMATS }
1279    },
1280
1281    /* YCbCr */
1282    {
1283       { GL_YCBCR_MESA, 0 },
1284       { PIPE_FORMAT_UYVY, PIPE_FORMAT_YUYV, 0 }
1285    },
1286
1287    /* compressed formats */ /* XXX PIPE_BIND_SAMPLER_VIEW only */
1288    {
1289       { GL_COMPRESSED_RGB, 0 },
1290       { PIPE_FORMAT_DXT1_RGB, DEFAULT_RGB_FORMATS }
1291    },
1292    {
1293       { GL_COMPRESSED_RGBA, 0 },
1294       { PIPE_FORMAT_DXT5_RGBA, DEFAULT_RGBA_FORMATS }
1295    },
1296    {
1297       { GL_RGB_S3TC, GL_RGB4_S3TC, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, 0 },
1298       { PIPE_FORMAT_DXT1_RGB, 0 }
1299    },
1300    {
1301       { GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, 0 },
1302       { PIPE_FORMAT_DXT1_RGBA, 0 }
1303    },
1304    {
1305       { GL_RGBA_S3TC, GL_RGBA4_S3TC, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, 0 },
1306       { PIPE_FORMAT_DXT3_RGBA, 0 }
1307    },
1308    {
1309       { GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, 0 },
1310       { PIPE_FORMAT_DXT5_RGBA, 0 }
1311    },
1312
1313 #if 0
1314    {
1315       { GL_COMPRESSED_RGB_FXT1_3DFX, 0 },
1316       { PIPE_FORMAT_RGB_FXT1, 0 }
1317    },
1318    {
1319       { GL_COMPRESSED_RGBA_FXT1_3DFX, 0 },
1320       { PIPE_FORMAT_RGBA_FXT1, 0 }
1321    },
1322 #endif
1323
1324    /* Depth formats */
1325    {
1326       { GL_DEPTH_COMPONENT16, 0 },
1327       { PIPE_FORMAT_Z16_UNORM, DEFAULT_DEPTH_FORMATS }
1328    },
1329    {
1330       { GL_DEPTH_COMPONENT24, 0 },
1331       { PIPE_FORMAT_Z24X8_UNORM, PIPE_FORMAT_X8Z24_UNORM,
1332         DEFAULT_DEPTH_FORMATS }
1333    },
1334    {
1335       { GL_DEPTH_COMPONENT32, 0 },
1336       { PIPE_FORMAT_Z32_UNORM, DEFAULT_DEPTH_FORMATS }
1337    },
1338    {
1339       { GL_DEPTH_COMPONENT, 0 },
1340       { DEFAULT_DEPTH_FORMATS }
1341    },
1342    {
1343       { GL_DEPTH_COMPONENT32F, 0 },
1344       { PIPE_FORMAT_Z32_FLOAT, 0 }
1345    },
1346
1347    /* stencil formats */
1348    {
1349       { GL_STENCIL_INDEX, GL_STENCIL_INDEX1_EXT, GL_STENCIL_INDEX4_EXT,
1350         GL_STENCIL_INDEX8_EXT, GL_STENCIL_INDEX16_EXT, 0 },
1351       {
1352          PIPE_FORMAT_S8_UINT, PIPE_FORMAT_Z24_UNORM_S8_UINT,
1353          PIPE_FORMAT_S8_UINT_Z24_UNORM, 0
1354       }
1355    },
1356
1357    /* Depth / Stencil formats */
1358    {
1359       { GL_DEPTH_STENCIL_EXT, GL_DEPTH24_STENCIL8_EXT, 0 },
1360       { PIPE_FORMAT_Z24_UNORM_S8_UINT, PIPE_FORMAT_S8_UINT_Z24_UNORM, 0 }
1361    },
1362    {
1363       { GL_DEPTH32F_STENCIL8, 0 },
1364       { PIPE_FORMAT_Z32_FLOAT_S8X24_UINT, 0 }
1365    },
1366
1367    /* sRGB formats */
1368    {
1369       { GL_SRGB_EXT, GL_SRGB8_EXT, 0 },
1370       { PIPE_FORMAT_R8G8B8X8_SRGB, PIPE_FORMAT_B8G8R8X8_SRGB,
1371         DEFAULT_SRGBA_FORMATS }
1372    },
1373    {
1374       { GL_SRGB_ALPHA_EXT, GL_SRGB8_ALPHA8_EXT, 0 },
1375       { PIPE_FORMAT_R8G8B8A8_SRGB, DEFAULT_SRGBA_FORMATS }
1376    },
1377    {
1378       { GL_COMPRESSED_SRGB_EXT, GL_COMPRESSED_SRGB_S3TC_DXT1_EXT, 0 },
1379       { PIPE_FORMAT_DXT1_SRGB, PIPE_FORMAT_R8G8B8X8_SRGB,
1380         PIPE_FORMAT_B8G8R8X8_SRGB, DEFAULT_SRGBA_FORMATS }
1381    },
1382    {
1383       { GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, 0 },
1384       { PIPE_FORMAT_DXT1_SRGBA, 0 }
1385    },
1386    {
1387       { GL_COMPRESSED_SRGB_ALPHA_EXT,
1388         GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, 0 },
1389       { PIPE_FORMAT_DXT3_SRGBA, DEFAULT_SRGBA_FORMATS }
1390    },
1391    {
1392       { GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, 0 },
1393       { PIPE_FORMAT_DXT5_SRGBA, 0 }
1394    },
1395    {
1396       { GL_SLUMINANCE_ALPHA_EXT, GL_SLUMINANCE8_ALPHA8_EXT,
1397         GL_COMPRESSED_SLUMINANCE_ALPHA_EXT, 0 },
1398       { PIPE_FORMAT_L8A8_SRGB, DEFAULT_SRGBA_FORMATS }
1399    },
1400    {
1401       { GL_SLUMINANCE_EXT, GL_SLUMINANCE8_EXT, GL_COMPRESSED_SLUMINANCE_EXT,
1402         0 },
1403       { PIPE_FORMAT_L8_SRGB, DEFAULT_SRGBA_FORMATS }
1404    },
1405    {
1406       { GL_SR8_EXT, 0 },
1407       { PIPE_FORMAT_R8_SRGB, 0 }
1408    },
1409
1410    /* 16-bit float formats */
1411    {
1412       { GL_RGBA16F_ARB, 0 },
1413       { PIPE_FORMAT_R16G16B16A16_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1414    },
1415    {
1416       { GL_RGB16F_ARB, 0 },
1417       { PIPE_FORMAT_R16G16B16_FLOAT, PIPE_FORMAT_R16G16B16X16_FLOAT,
1418         PIPE_FORMAT_R16G16B16A16_FLOAT,
1419         PIPE_FORMAT_R32G32B32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1420    },
1421    {
1422       { GL_LUMINANCE_ALPHA16F_ARB, 0 },
1423       { PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1424         PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1425    },
1426    {
1427       { GL_ALPHA16F_ARB, 0 },
1428       { PIPE_FORMAT_A16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
1429         PIPE_FORMAT_A32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1430         PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1431    },
1432    {
1433       { GL_INTENSITY16F_ARB, 0 },
1434       { PIPE_FORMAT_I16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
1435         PIPE_FORMAT_I32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1436         PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1437    },
1438    {
1439       { GL_LUMINANCE16F_ARB, 0 },
1440       { PIPE_FORMAT_L16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
1441         PIPE_FORMAT_L32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1442         PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1443    },
1444    {
1445       { GL_R16F, 0 },
1446       { PIPE_FORMAT_R16_FLOAT, PIPE_FORMAT_R16G16_FLOAT,
1447         PIPE_FORMAT_R32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1448         PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1449    },
1450    {
1451       { GL_RG16F, 0 },
1452       { PIPE_FORMAT_R16G16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1453         PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1454    },
1455
1456    /* 32-bit float formats */
1457    {
1458       { GL_RGBA32F_ARB, 0 },
1459       { PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1460    },
1461    {
1462       { GL_RGB32F_ARB, 0 },
1463       { PIPE_FORMAT_R32G32B32_FLOAT, PIPE_FORMAT_R32G32B32X32_FLOAT,
1464         PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1465    },
1466    {
1467       { GL_LUMINANCE_ALPHA32F_ARB, 0 },
1468       { PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1469    },
1470    {
1471       { GL_ALPHA32F_ARB, 0 },
1472       { PIPE_FORMAT_A32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
1473         PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1474    },
1475    {
1476       { GL_INTENSITY32F_ARB, 0 },
1477       { PIPE_FORMAT_I32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
1478         PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1479    },
1480    {
1481       { GL_LUMINANCE32F_ARB, 0 },
1482       { PIPE_FORMAT_L32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
1483         PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1484    },
1485    {
1486       { GL_R32F, 0 },
1487       { PIPE_FORMAT_R32_FLOAT, PIPE_FORMAT_R32G32_FLOAT,
1488         PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1489    },
1490    {
1491       { GL_RG32F, 0 },
1492       { PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1493    },
1494
1495    /* R, RG formats */
1496    {
1497       { GL_RED, GL_R8, 0 },
1498       { PIPE_FORMAT_R8_UNORM, PIPE_FORMAT_R8G8_UNORM, DEFAULT_RGBA_FORMATS }
1499    },
1500    {
1501       { GL_RG, GL_RG8, 0 },
1502       { PIPE_FORMAT_R8G8_UNORM, DEFAULT_RGBA_FORMATS }
1503    },
1504    {
1505       { GL_R16, 0 },
1506       { PIPE_FORMAT_R16_UNORM, PIPE_FORMAT_R16G16_UNORM,
1507         DEFAULT_UNORM16_RGBA_FORMATS }
1508    },
1509    {
1510       { GL_RG16, 0 },
1511       { PIPE_FORMAT_R16G16_UNORM, DEFAULT_UNORM16_RGBA_FORMATS }
1512    },
1513
1514    /* compressed R, RG formats */
1515    {
1516       { GL_COMPRESSED_RED, GL_COMPRESSED_RED_RGTC1, 0 },
1517       { PIPE_FORMAT_RGTC1_UNORM, PIPE_FORMAT_R8_UNORM, DEFAULT_RGBA_FORMATS }
1518    },
1519    {
1520       { GL_COMPRESSED_SIGNED_RED_RGTC1, 0 },
1521       { PIPE_FORMAT_RGTC1_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1522    },
1523    {
1524       { GL_COMPRESSED_RG, GL_COMPRESSED_RG_RGTC2, 0 },
1525       { PIPE_FORMAT_RGTC2_UNORM, PIPE_FORMAT_R8G8_UNORM, DEFAULT_RGBA_FORMATS }
1526    },
1527    {
1528       { GL_COMPRESSED_SIGNED_RG_RGTC2, 0 },
1529       { PIPE_FORMAT_RGTC2_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1530    },
1531    {
1532       { GL_COMPRESSED_LUMINANCE, GL_COMPRESSED_LUMINANCE_LATC1_EXT, 0 },
1533       { PIPE_FORMAT_LATC1_UNORM, PIPE_FORMAT_L8_UNORM, DEFAULT_RGBA_FORMATS }
1534    },
1535    {
1536       { GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT, 0 },
1537       { PIPE_FORMAT_LATC1_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1538    },
1539    {
1540       { GL_COMPRESSED_LUMINANCE_ALPHA, GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT,
1541         GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI, 0 },
1542       { PIPE_FORMAT_LATC2_UNORM, PIPE_FORMAT_L8A8_UNORM, DEFAULT_RGBA_FORMATS }
1543    },
1544    {
1545       { GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT, 0 },
1546       { PIPE_FORMAT_LATC2_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1547    },
1548
1549    /* ETC1 */
1550    {
1551       { GL_ETC1_RGB8_OES, 0 },
1552       { PIPE_FORMAT_ETC1_RGB8, 0 }
1553    },
1554
1555    /* ETC2 */
1556    {
1557       { GL_COMPRESSED_RGB8_ETC2, 0 },
1558       { PIPE_FORMAT_ETC2_RGB8, 0 }
1559    },
1560    {
1561       { GL_COMPRESSED_SRGB8_ETC2, 0 },
1562       { PIPE_FORMAT_ETC2_SRGB8, 0 }
1563    },
1564    {
1565       { GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, 0 },
1566       { PIPE_FORMAT_ETC2_RGB8A1, 0 }
1567    },
1568    {
1569       { GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, 0 },
1570       { PIPE_FORMAT_ETC2_SRGB8A1, 0 }
1571    },
1572    {
1573       { GL_COMPRESSED_RGBA8_ETC2_EAC, 0 },
1574       { PIPE_FORMAT_ETC2_RGBA8, 0 }
1575    },
1576    {
1577       { GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, 0 },
1578       { PIPE_FORMAT_ETC2_SRGBA8, 0 }
1579    },
1580    {
1581       { GL_COMPRESSED_R11_EAC, 0 },
1582       { PIPE_FORMAT_ETC2_R11_UNORM, 0 }
1583    },
1584    {
1585       { GL_COMPRESSED_SIGNED_R11_EAC, 0 },
1586       { PIPE_FORMAT_ETC2_R11_SNORM, 0 }
1587    },
1588    {
1589       { GL_COMPRESSED_RG11_EAC, 0 },
1590       { PIPE_FORMAT_ETC2_RG11_UNORM, 0 }
1591    },
1592    {
1593       { GL_COMPRESSED_SIGNED_RG11_EAC, 0 },
1594       { PIPE_FORMAT_ETC2_RG11_SNORM, 0 }
1595    },
1596
1597    /* BPTC */
1598    {
1599       { GL_COMPRESSED_RGBA_BPTC_UNORM, 0 },
1600       { PIPE_FORMAT_BPTC_RGBA_UNORM, 0 },
1601    },
1602    {
1603       { GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM, 0 },
1604       { PIPE_FORMAT_BPTC_SRGBA, 0 },
1605    },
1606    {
1607       { GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT, 0 },
1608       { PIPE_FORMAT_BPTC_RGB_FLOAT, 0 },
1609    },
1610    {
1611       { GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT, 0 },
1612       { PIPE_FORMAT_BPTC_RGB_UFLOAT, 0 },
1613    },
1614
1615    /* ASTC */
1616    {
1617       { GL_COMPRESSED_RGBA_ASTC_4x4_KHR, 0 },
1618       { PIPE_FORMAT_ASTC_4x4, 0},
1619    },
1620    {
1621       { GL_COMPRESSED_RGBA_ASTC_5x4_KHR, 0 },
1622       { PIPE_FORMAT_ASTC_5x4, 0},
1623    },
1624    {
1625       { GL_COMPRESSED_RGBA_ASTC_5x5_KHR, 0 },
1626       { PIPE_FORMAT_ASTC_5x5, 0},
1627    },
1628    {
1629       { GL_COMPRESSED_RGBA_ASTC_6x5_KHR, 0 },
1630       { PIPE_FORMAT_ASTC_6x5, 0},
1631    },
1632    {
1633       { GL_COMPRESSED_RGBA_ASTC_6x6_KHR, 0 },
1634       { PIPE_FORMAT_ASTC_6x6, 0},
1635    },
1636    {
1637       { GL_COMPRESSED_RGBA_ASTC_8x5_KHR, 0 },
1638       { PIPE_FORMAT_ASTC_8x5, 0},
1639    },
1640    {
1641       { GL_COMPRESSED_RGBA_ASTC_8x6_KHR, 0 },
1642       { PIPE_FORMAT_ASTC_8x6, 0},
1643    },
1644    {
1645       { GL_COMPRESSED_RGBA_ASTC_8x8_KHR, 0 },
1646       { PIPE_FORMAT_ASTC_8x8, 0},
1647    },
1648    {
1649       { GL_COMPRESSED_RGBA_ASTC_10x5_KHR, 0 },
1650       { PIPE_FORMAT_ASTC_10x5, 0},
1651    },
1652    {
1653       { GL_COMPRESSED_RGBA_ASTC_10x6_KHR, 0 },
1654       { PIPE_FORMAT_ASTC_10x6, 0},
1655    },
1656    {
1657       { GL_COMPRESSED_RGBA_ASTC_10x8_KHR, 0 },
1658       { PIPE_FORMAT_ASTC_10x8, 0},
1659    },
1660    {
1661       { GL_COMPRESSED_RGBA_ASTC_10x10_KHR, 0 },
1662       { PIPE_FORMAT_ASTC_10x10, 0},
1663    },
1664    {
1665       { GL_COMPRESSED_RGBA_ASTC_12x10_KHR, 0 },
1666       { PIPE_FORMAT_ASTC_12x10, 0},
1667    },
1668    {
1669       { GL_COMPRESSED_RGBA_ASTC_12x12_KHR, 0 },
1670       { PIPE_FORMAT_ASTC_12x12, 0},
1671    },
1672
1673    {
1674       { GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR, 0 },
1675       { PIPE_FORMAT_ASTC_4x4_SRGB, 0},
1676    },
1677    {
1678       { GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR, 0 },
1679       { PIPE_FORMAT_ASTC_5x4_SRGB, 0},
1680    },
1681    {
1682       { GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR, 0 },
1683       { PIPE_FORMAT_ASTC_5x5_SRGB, 0},
1684    },
1685    {
1686       { GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR, 0 },
1687       { PIPE_FORMAT_ASTC_6x5_SRGB, 0},
1688    },
1689    {
1690       { GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR, 0 },
1691       { PIPE_FORMAT_ASTC_6x6_SRGB, 0},
1692    },
1693    {
1694       { GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR, 0 },
1695       { PIPE_FORMAT_ASTC_8x5_SRGB, 0},
1696    },
1697    {
1698       { GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR, 0 },
1699       { PIPE_FORMAT_ASTC_8x6_SRGB, 0},
1700    },
1701    {
1702       { GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR, 0 },
1703       { PIPE_FORMAT_ASTC_8x8_SRGB, 0},
1704    },
1705    {
1706       { GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR, 0 },
1707       { PIPE_FORMAT_ASTC_10x5_SRGB, 0},
1708    },
1709    {
1710       { GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR, 0 },
1711       { PIPE_FORMAT_ASTC_10x6_SRGB, 0},
1712    },
1713    {
1714       { GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR, 0 },
1715       { PIPE_FORMAT_ASTC_10x8_SRGB, 0},
1716    },
1717    {
1718       { GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR, 0 },
1719       { PIPE_FORMAT_ASTC_10x10_SRGB, 0},
1720    },
1721    {
1722       { GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR, 0 },
1723       { PIPE_FORMAT_ASTC_12x10_SRGB, 0},
1724    },
1725    {
1726       { GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR, 0 },
1727       { PIPE_FORMAT_ASTC_12x12_SRGB, 0},
1728    },
1729
1730    /* signed/unsigned integer formats.
1731     */
1732    {
1733       { GL_RGBA_INTEGER_EXT,
1734         GL_BGRA_INTEGER_EXT,
1735         GL_RGBA8I_EXT, 0 },
1736       { PIPE_FORMAT_R8G8B8A8_SINT, 0 }
1737    },
1738    {
1739       { GL_RGB_INTEGER_EXT,
1740         GL_BGR_INTEGER_EXT,
1741         GL_RGB8I_EXT,
1742         GL_BLUE_INTEGER_EXT, 0 },
1743       { PIPE_FORMAT_R8G8B8_SINT, PIPE_FORMAT_R8G8B8X8_SINT,
1744         PIPE_FORMAT_R8G8B8A8_SINT, 0 }
1745    },
1746    {
1747       { GL_ALPHA_INTEGER_EXT,
1748         GL_ALPHA8I_EXT, 0 },
1749       { PIPE_FORMAT_A8_SINT, PIPE_FORMAT_R8G8B8A8_SINT, 0 }
1750    },
1751    {
1752       { GL_ALPHA16I_EXT, 0 },
1753       { PIPE_FORMAT_A16_SINT, PIPE_FORMAT_R16G16B16A16_SINT, 0 }
1754    },
1755    {
1756       { GL_ALPHA32I_EXT, 0 },
1757       { PIPE_FORMAT_A32_SINT, PIPE_FORMAT_R32G32B32A32_SINT, 0 }
1758    },
1759    {
1760       { GL_ALPHA8UI_EXT, 0 },
1761       { PIPE_FORMAT_A8_UINT, PIPE_FORMAT_R8G8B8A8_UINT, 0 }
1762    },
1763    {
1764       { GL_ALPHA16UI_EXT, 0 },
1765       { PIPE_FORMAT_A16_UINT, PIPE_FORMAT_R16G16B16A16_UINT, 0 }
1766    },
1767    {
1768       { GL_ALPHA32UI_EXT, 0 },
1769       { PIPE_FORMAT_A32_UINT, PIPE_FORMAT_R32G32B32A32_UINT, 0 }
1770    },
1771    {
1772       { GL_INTENSITY8I_EXT, 0 },
1773       { PIPE_FORMAT_I8_SINT, PIPE_FORMAT_R8G8B8A8_SINT, 0 }
1774    },
1775    {
1776       { GL_INTENSITY16I_EXT, 0 },
1777       { PIPE_FORMAT_I16_SINT, PIPE_FORMAT_R16G16B16A16_SINT, 0 }
1778    },
1779    {
1780       { GL_INTENSITY32I_EXT, 0 },
1781       { PIPE_FORMAT_I32_SINT, PIPE_FORMAT_R32G32B32A32_SINT, 0 }
1782    },
1783    {
1784       { GL_INTENSITY8UI_EXT, 0 },
1785       { PIPE_FORMAT_I8_UINT, PIPE_FORMAT_R8G8B8A8_UINT, 0 }
1786    },
1787    {
1788       { GL_INTENSITY16UI_EXT, 0 },
1789       { PIPE_FORMAT_I16_UINT, PIPE_FORMAT_R16G16B16A16_UINT, 0 }
1790    },
1791    {
1792       { GL_INTENSITY32UI_EXT, 0 },
1793       { PIPE_FORMAT_I32_UINT, PIPE_FORMAT_R32G32B32A32_UINT, 0 }
1794    },
1795    {
1796       { GL_LUMINANCE8I_EXT, 0 },
1797       { PIPE_FORMAT_L8_SINT, PIPE_FORMAT_R8G8B8A8_SINT, 0 }
1798    },
1799    {
1800       { GL_LUMINANCE16I_EXT, 0 },
1801       { PIPE_FORMAT_L16_SINT, PIPE_FORMAT_R16G16B16A16_SINT, 0 }
1802    },
1803    {
1804       { GL_LUMINANCE32I_EXT, 0 },
1805       { PIPE_FORMAT_L32_SINT, PIPE_FORMAT_R32G32B32A32_SINT, 0 }
1806    },
1807    {
1808       { GL_LUMINANCE_INTEGER_EXT,
1809         GL_LUMINANCE8UI_EXT, 0 },
1810       { PIPE_FORMAT_L8_UINT, PIPE_FORMAT_R8G8B8A8_UINT, 0 }
1811    },
1812    {
1813       { GL_LUMINANCE16UI_EXT, 0 },
1814       { PIPE_FORMAT_L16_UINT, PIPE_FORMAT_R16G16B16A16_UINT, 0 }
1815    },
1816    {
1817       { GL_LUMINANCE32UI_EXT, 0 },
1818       { PIPE_FORMAT_L32_UINT, PIPE_FORMAT_R32G32B32A32_UINT, 0 }
1819    },
1820    {
1821       { GL_LUMINANCE_ALPHA_INTEGER_EXT,
1822         GL_LUMINANCE_ALPHA8I_EXT, 0 },
1823       { PIPE_FORMAT_L8A8_SINT, PIPE_FORMAT_R8G8B8A8_SINT, 0 }
1824    },
1825    {
1826       { GL_LUMINANCE_ALPHA16I_EXT, 0 },
1827       { PIPE_FORMAT_L16A16_SINT, PIPE_FORMAT_R16G16B16A16_SINT, 0 }
1828    },
1829    {
1830       { GL_LUMINANCE_ALPHA32I_EXT, 0 },
1831       { PIPE_FORMAT_L32A32_SINT, PIPE_FORMAT_R32G32B32A32_SINT, 0 }
1832    },
1833    {
1834       { GL_LUMINANCE_ALPHA8UI_EXT, 0 },
1835       { PIPE_FORMAT_L8A8_UINT, PIPE_FORMAT_R8G8B8A8_UINT, 0 }
1836    },
1837    {
1838       { GL_LUMINANCE_ALPHA16UI_EXT, 0 },
1839       { PIPE_FORMAT_L16A16_UINT, PIPE_FORMAT_R16G16B16A16_UINT, 0 }
1840    },
1841    {
1842       { GL_LUMINANCE_ALPHA32UI_EXT, 0 },
1843       { PIPE_FORMAT_L32A32_UINT, PIPE_FORMAT_R32G32B32A32_UINT, 0 }
1844    },
1845    {
1846       { GL_RGB16I_EXT, 0 },
1847       { PIPE_FORMAT_R16G16B16_SINT, PIPE_FORMAT_R16G16B16X16_SINT,
1848         PIPE_FORMAT_R16G16B16A16_SINT, 0 },
1849    },
1850    {
1851       { GL_RGBA16I_EXT, 0 },
1852       { PIPE_FORMAT_R16G16B16A16_SINT, 0 },
1853    },
1854    {
1855       { GL_RGB32I_EXT, 0 },
1856       { PIPE_FORMAT_R32G32B32_SINT, PIPE_FORMAT_R32G32B32X32_SINT,
1857         PIPE_FORMAT_R32G32B32A32_SINT, 0 },
1858    },
1859    {
1860       { GL_RGBA32I_EXT, 0 },
1861       { PIPE_FORMAT_R32G32B32A32_SINT, 0 }
1862    },
1863    {
1864       { GL_RGBA8UI_EXT, 0 },
1865       { PIPE_FORMAT_R8G8B8A8_UINT, 0 }
1866    },
1867    {
1868       { GL_RGB8UI_EXT, 0 },
1869       { PIPE_FORMAT_R8G8B8_UINT, PIPE_FORMAT_R8G8B8X8_UINT,
1870         PIPE_FORMAT_R8G8B8A8_UINT, 0 }
1871    },
1872    {
1873       { GL_RGB16UI_EXT, 0 },
1874       { PIPE_FORMAT_R16G16B16_UINT, PIPE_FORMAT_R16G16B16X16_UINT,
1875         PIPE_FORMAT_R16G16B16A16_UINT, 0 }
1876    },
1877    {
1878       { GL_RGBA16UI_EXT, 0 },
1879       { PIPE_FORMAT_R16G16B16A16_UINT, 0 }
1880    },
1881    {
1882       { GL_RGB32UI_EXT, 0},
1883       { PIPE_FORMAT_R32G32B32_UINT, PIPE_FORMAT_R32G32B32X32_UINT,
1884         PIPE_FORMAT_R32G32B32A32_UINT, 0 }
1885    },
1886    {
1887       { GL_RGBA32UI_EXT, 0},
1888       { PIPE_FORMAT_R32G32B32A32_UINT, 0 }
1889    },
1890    {
1891      { GL_R8I, GL_RED_INTEGER_EXT, 0},
1892      { PIPE_FORMAT_R8_SINT, 0},
1893    },
1894    {
1895      { GL_R16I, 0},
1896      { PIPE_FORMAT_R16_SINT, 0},
1897    },
1898    {
1899      { GL_R32I, 0},
1900      { PIPE_FORMAT_R32_SINT, 0},
1901    },
1902   {
1903      { GL_R8UI, 0},
1904      { PIPE_FORMAT_R8_UINT, 0},
1905    },
1906    {
1907      { GL_R16UI, 0},
1908      { PIPE_FORMAT_R16_UINT, 0},
1909    },
1910    {
1911      { GL_R32UI, 0},
1912      { PIPE_FORMAT_R32_UINT, 0},
1913    },
1914    {
1915      { GL_RG8I, GL_GREEN_INTEGER_EXT, 0},
1916      { PIPE_FORMAT_R8G8_SINT, 0},
1917    },
1918    {
1919      { GL_RG16I, 0},
1920      { PIPE_FORMAT_R16G16_SINT, 0},
1921    },
1922    {
1923      { GL_RG32I, 0},
1924      { PIPE_FORMAT_R32G32_SINT, 0},
1925    },
1926   {
1927      { GL_RG8UI, 0},
1928      { PIPE_FORMAT_R8G8_UINT, 0},
1929    },
1930    {
1931      { GL_RG16UI, 0},
1932      { PIPE_FORMAT_R16G16_UINT, 0},
1933    },
1934    {
1935      { GL_RG32UI, 0},
1936      { PIPE_FORMAT_R32G32_UINT, 0},
1937    },
1938    /* signed normalized formats */
1939    {
1940       { GL_RED_SNORM, GL_R8_SNORM, 0 },
1941       { PIPE_FORMAT_R8_SNORM, PIPE_FORMAT_R8G8_SNORM,
1942         PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1943    },
1944    {
1945       { GL_R16_SNORM, 0 },
1946       { PIPE_FORMAT_R16_SNORM,
1947         PIPE_FORMAT_R16G16_SNORM,
1948         PIPE_FORMAT_R16G16B16A16_SNORM,
1949         PIPE_FORMAT_R8_SNORM,
1950         PIPE_FORMAT_R8G8_SNORM,
1951         PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1952    },
1953    {
1954       { GL_RG_SNORM, GL_RG8_SNORM, 0 },
1955       { PIPE_FORMAT_R8G8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1956    },
1957    {
1958       { GL_RG16_SNORM, 0 },
1959       { PIPE_FORMAT_R16G16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1960         PIPE_FORMAT_R8G8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1961    },
1962    {
1963       { GL_RGB_SNORM, GL_RGB8_SNORM, 0 },
1964       { PIPE_FORMAT_R8G8B8X8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1965    },
1966    {
1967       { GL_RGBA_SNORM, GL_RGBA8_SNORM, 0 },
1968       { PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1969    },
1970    {
1971       { GL_RGB16_SNORM, 0 },
1972       { PIPE_FORMAT_R16G16B16X16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1973         PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1974    },
1975    {
1976       { GL_RGBA16_SNORM, 0 },
1977       { PIPE_FORMAT_R16G16B16A16_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1978    },
1979    {
1980       { GL_ALPHA_SNORM, GL_ALPHA8_SNORM, 0 },
1981       { PIPE_FORMAT_A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1982    },
1983    {
1984       { GL_ALPHA16_SNORM, 0 },
1985       { PIPE_FORMAT_A16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1986         PIPE_FORMAT_A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1987    },
1988    {
1989       { GL_LUMINANCE_SNORM, GL_LUMINANCE8_SNORM, 0 },
1990       { PIPE_FORMAT_L8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1991    },
1992    {
1993       { GL_LUMINANCE16_SNORM, 0 },
1994       { PIPE_FORMAT_L16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1995         PIPE_FORMAT_L8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1996    },
1997    {
1998       { GL_LUMINANCE_ALPHA_SNORM, GL_LUMINANCE8_ALPHA8_SNORM, 0 },
1999       { PIPE_FORMAT_L8A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
2000    },
2001    {
2002       { GL_LUMINANCE16_ALPHA16_SNORM, 0 },
2003       { PIPE_FORMAT_L16A16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
2004         PIPE_FORMAT_L8A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
2005    },
2006    {
2007       { GL_INTENSITY_SNORM, GL_INTENSITY8_SNORM, 0 },
2008       { PIPE_FORMAT_I8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
2009    },
2010    {
2011       { GL_INTENSITY16_SNORM, 0 },
2012       { PIPE_FORMAT_I16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
2013         PIPE_FORMAT_I8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
2014    },
2015    {
2016       { GL_RGB9_E5, 0 },
2017       { PIPE_FORMAT_R9G9B9E5_FLOAT, 0 }
2018    },
2019    {
2020       { GL_R11F_G11F_B10F, 0 },
2021       { PIPE_FORMAT_R11G11B10_FLOAT, 0 }
2022    },
2023    {
2024       { GL_RGB10_A2UI, 0 },
2025       { PIPE_FORMAT_R10G10B10A2_UINT, PIPE_FORMAT_B10G10R10A2_UINT, 0 }
2026    },
2027 };
2028
2029
2030 /**
2031  * Return first supported format from the given list.
2032  * \param allow_dxt  indicates whether it's OK to return a DXT format.
2033  */
2034 static enum pipe_format
2035 find_supported_format(struct pipe_screen *screen,
2036                       const enum pipe_format formats[],
2037                       enum pipe_texture_target target,
2038                       unsigned sample_count,
2039                       unsigned storage_sample_count,
2040                       unsigned bindings,
2041                       boolean allow_dxt)
2042 {
2043    uint i;
2044    for (i = 0; formats[i]; i++) {
2045       if (screen->is_format_supported(screen, formats[i], target,
2046                                       sample_count, storage_sample_count,
2047                                       bindings)) {
2048          if (!allow_dxt && util_format_is_s3tc(formats[i])) {
2049             /* we can't return a dxt format, continue searching */
2050             continue;
2051          }
2052
2053          return formats[i];
2054       }
2055    }
2056    return PIPE_FORMAT_NONE;
2057 }
2058
2059
2060 struct exact_format_mapping
2061 {
2062    GLenum format;
2063    GLenum type;
2064    enum pipe_format pformat;
2065 };
2066
2067 static const struct exact_format_mapping rgba8888_tbl[] =
2068 {
2069    { GL_RGBA,     GL_UNSIGNED_INT_8_8_8_8,        PIPE_FORMAT_ABGR8888_UNORM },
2070    { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8_REV,    PIPE_FORMAT_ABGR8888_UNORM },
2071    { GL_RGBA,     GL_UNSIGNED_INT_8_8_8_8_REV,    PIPE_FORMAT_RGBA8888_UNORM },
2072    { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8,        PIPE_FORMAT_RGBA8888_UNORM },
2073    { GL_BGRA,     GL_UNSIGNED_INT_8_8_8_8,        PIPE_FORMAT_ARGB8888_UNORM },
2074    { GL_BGRA,     GL_UNSIGNED_INT_8_8_8_8_REV,    PIPE_FORMAT_BGRA8888_UNORM },
2075    { GL_RGBA,     GL_UNSIGNED_BYTE,               PIPE_FORMAT_R8G8B8A8_UNORM },
2076    { GL_ABGR_EXT, GL_UNSIGNED_BYTE,               PIPE_FORMAT_A8B8G8R8_UNORM },
2077    { GL_BGRA,     GL_UNSIGNED_BYTE,               PIPE_FORMAT_B8G8R8A8_UNORM },
2078    { 0,           0,                              0                          }
2079 };
2080
2081 static const struct exact_format_mapping rgbx8888_tbl[] =
2082 {
2083    { GL_RGBA,     GL_UNSIGNED_INT_8_8_8_8,        PIPE_FORMAT_XBGR8888_UNORM },
2084    { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8_REV,    PIPE_FORMAT_XBGR8888_UNORM },
2085    { GL_RGBA,     GL_UNSIGNED_INT_8_8_8_8_REV,    PIPE_FORMAT_RGBX8888_UNORM },
2086    { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8,        PIPE_FORMAT_RGBX8888_UNORM },
2087    { GL_BGRA,     GL_UNSIGNED_INT_8_8_8_8,        PIPE_FORMAT_XRGB8888_UNORM },
2088    { GL_BGRA,     GL_UNSIGNED_INT_8_8_8_8_REV,    PIPE_FORMAT_BGRX8888_UNORM },
2089    { GL_RGBA,     GL_UNSIGNED_BYTE,               PIPE_FORMAT_R8G8B8X8_UNORM },
2090    { GL_ABGR_EXT, GL_UNSIGNED_BYTE,               PIPE_FORMAT_X8B8G8R8_UNORM },
2091    { GL_BGRA,     GL_UNSIGNED_BYTE,               PIPE_FORMAT_B8G8R8X8_UNORM },
2092    { 0,           0,                              0                          }
2093 };
2094
2095
2096 /**
2097  * For unsized/base internal formats, we may choose a convenient effective
2098  * internal format for {format, type}. If one exists, return that, otherwise
2099  * return PIPE_FORMAT_NONE.
2100  */
2101 static enum pipe_format
2102 find_exact_format(GLint internalFormat, GLenum format, GLenum type)
2103 {
2104    uint i;
2105    const struct exact_format_mapping* tbl;
2106
2107    if (format == GL_NONE || type == GL_NONE)
2108       return PIPE_FORMAT_NONE;
2109
2110    switch (internalFormat) {
2111    case 4:
2112    case GL_RGBA:
2113       tbl = rgba8888_tbl;
2114       break;
2115    case 3:
2116    case GL_RGB:
2117       tbl = rgbx8888_tbl;
2118       break;
2119    default:
2120       return PIPE_FORMAT_NONE;
2121    }
2122
2123    for (i = 0; tbl[i].format; i++)
2124       if (tbl[i].format == format && tbl[i].type == type)
2125          return tbl[i].pformat;
2126
2127    return PIPE_FORMAT_NONE;
2128 }
2129
2130
2131 /**
2132  * Given an OpenGL internalFormat value for a texture or surface, return
2133  * the best matching PIPE_FORMAT_x, or PIPE_FORMAT_NONE if there's no match.
2134  * This is called during glTexImage2D, for example.
2135  *
2136  * The bindings parameter typically has PIPE_BIND_SAMPLER_VIEW set, plus
2137  * either PIPE_BINDING_RENDER_TARGET or PIPE_BINDING_DEPTH_STENCIL if
2138  * we want render-to-texture ability.
2139  *
2140  * \param internalFormat  the user value passed to glTexImage2D
2141  * \param target  one of PIPE_TEXTURE_x
2142  * \param bindings  bitmask of PIPE_BIND_x flags.
2143  * \param allow_dxt  indicates whether it's OK to return a DXT format.  This
2144  *                   only matters when internalFormat names a generic or
2145  *                   specific compressed format.  And that should only happen
2146  *                   when we're getting called from gl[Copy]TexImage().
2147  */
2148 enum pipe_format
2149 st_choose_format(struct st_context *st, GLenum internalFormat,
2150                  GLenum format, GLenum type,
2151                  enum pipe_texture_target target, unsigned sample_count,
2152                  unsigned storage_sample_count,
2153                  unsigned bindings, boolean allow_dxt)
2154 {
2155    struct pipe_screen *screen = st->pipe->screen;
2156    unsigned i;
2157    int j;
2158    enum pipe_format pf;
2159
2160    /* can't render to compressed formats at this time */
2161    if (_mesa_is_compressed_format(st->ctx, internalFormat)
2162        && (bindings & ~PIPE_BIND_SAMPLER_VIEW)) {
2163       return PIPE_FORMAT_NONE;
2164    }
2165
2166    /* search for exact matches */
2167    pf = find_exact_format(internalFormat, format, type);
2168    if (pf != PIPE_FORMAT_NONE &&
2169        screen->is_format_supported(screen, pf, target, sample_count,
2170                                    storage_sample_count, bindings)) {
2171       goto success;
2172    }
2173
2174    /* For an unsized GL_RGB but a 2_10_10_10 type, try to pick one of the
2175     * 2_10_10_10 formats.  This is important for
2176     * GL_EXT_texture_type_2_10_10_10_EXT support, which says that these
2177     * formats are not color-renderable.  Mesa's check for making those
2178     * non-color-renderable is based on our chosen format being 2101010.
2179     */
2180    if (type == GL_UNSIGNED_INT_2_10_10_10_REV) {
2181       if (internalFormat == GL_RGB)
2182          internalFormat = GL_RGB10;
2183       else if (internalFormat == GL_RGBA)
2184          internalFormat = GL_RGB10_A2;
2185    }
2186
2187    /* search table for internalFormat */
2188    for (i = 0; i < ARRAY_SIZE(format_map); i++) {
2189       const struct format_mapping *mapping = &format_map[i];
2190       for (j = 0; mapping->glFormats[j]; j++) {
2191          if (mapping->glFormats[j] == internalFormat) {
2192             /* Found the desired internal format.  Find first pipe format
2193              * which is supported by the driver.
2194              */
2195             pf = find_supported_format(screen, mapping->pipeFormats,
2196                                        target, sample_count,
2197                                        storage_sample_count, bindings,
2198                                        allow_dxt);
2199             goto success;
2200          }
2201       }
2202    }
2203
2204    _mesa_problem(NULL, "unhandled format!\n");
2205    return PIPE_FORMAT_NONE;
2206
2207 success:
2208    if (0) {
2209       debug_printf("%s(fmt=%s, type=%s, intFmt=%s) = %s\n",
2210                    __FUNCTION__,
2211                    _mesa_enum_to_string(format),
2212                    _mesa_enum_to_string(type),
2213                    _mesa_enum_to_string(internalFormat),
2214                    util_format_name(pf));
2215    }
2216    return pf;
2217 }
2218
2219
2220 /**
2221  * Called by FBO code to choose a PIPE_FORMAT_ for drawing surfaces.
2222  */
2223 enum pipe_format
2224 st_choose_renderbuffer_format(struct st_context *st,
2225                               GLenum internalFormat, unsigned sample_count,
2226                               unsigned storage_sample_count)
2227 {
2228    unsigned bindings;
2229    if (_mesa_is_depth_or_stencil_format(internalFormat))
2230       bindings = PIPE_BIND_DEPTH_STENCIL;
2231    else
2232       bindings = PIPE_BIND_RENDER_TARGET;
2233    return st_choose_format(st, internalFormat, GL_NONE, GL_NONE,
2234                            PIPE_TEXTURE_2D, sample_count,
2235                            storage_sample_count, bindings, FALSE);
2236 }
2237
2238
2239 /**
2240  * Given an OpenGL user-requested format and type, and swapBytes state,
2241  * return the format which exactly matches those parameters, so that
2242  * a memcpy-based transfer can be done.
2243  *
2244  * If no format is supported, return PIPE_FORMAT_NONE.
2245  */
2246 enum pipe_format
2247 st_choose_matching_format(struct st_context *st, unsigned bind,
2248                           GLenum format, GLenum type, GLboolean swapBytes)
2249 {
2250    struct pipe_screen *screen = st->pipe->screen;
2251    mesa_format mesa_format;
2252
2253    for (mesa_format = 1; mesa_format < MESA_FORMAT_COUNT; mesa_format++) {
2254       if (_mesa_is_format_srgb(mesa_format)) {
2255          continue;
2256       }
2257       if (_mesa_get_format_bits(mesa_format, GL_TEXTURE_INTENSITY_SIZE) > 0) {
2258          /* If `format` is GL_RED/GL_RED_INTEGER, then we might match some
2259           * intensity formats, which we don't want.
2260           */
2261          continue;
2262       }
2263
2264       if (_mesa_format_matches_format_and_type(mesa_format, format, type,
2265                                                swapBytes, NULL)) {
2266          enum pipe_format format =
2267             st_mesa_format_to_pipe_format(st, mesa_format);
2268
2269          if (format &&
2270              screen->is_format_supported(screen, format, PIPE_TEXTURE_2D,
2271                                          0, 0, bind)) {
2272             return format;
2273          }
2274          /* It's unlikely to find 2 matching Mesa formats. */
2275          break;
2276       }
2277    }
2278    return PIPE_FORMAT_NONE;
2279 }
2280
2281
2282 /**
2283  * Called via ctx->Driver.ChooseTextureFormat().
2284  */
2285 mesa_format
2286 st_ChooseTextureFormat(struct gl_context *ctx, GLenum target,
2287                        GLint internalFormat,
2288                        GLenum format, GLenum type)
2289 {
2290    struct st_context *st = st_context(ctx);
2291    enum pipe_format pFormat;
2292    mesa_format mFormat;
2293    unsigned bindings;
2294    bool is_renderbuffer = false;
2295    enum pipe_texture_target pTarget;
2296
2297    if (target == GL_RENDERBUFFER) {
2298       pTarget = PIPE_TEXTURE_2D;
2299       is_renderbuffer = true;
2300    } else {
2301       pTarget = gl_target_to_pipe(target);
2302    }
2303
2304    if (target == GL_TEXTURE_1D || target == GL_TEXTURE_1D_ARRAY) {
2305       /* We don't do compression for these texture targets because of
2306        * difficulty with sub-texture updates on non-block boundaries, etc.
2307        * So change the internal format request to an uncompressed format.
2308        */
2309       internalFormat =
2310         _mesa_generic_compressed_format_to_uncompressed_format(internalFormat);
2311    }
2312
2313    /* GL textures may wind up being render targets, but we don't know
2314     * that in advance.  Specify potential render target flags now for formats
2315     * that we know should always be renderable.
2316     */
2317    bindings = PIPE_BIND_SAMPLER_VIEW;
2318    if (_mesa_is_depth_or_stencil_format(internalFormat))
2319       bindings |= PIPE_BIND_DEPTH_STENCIL;
2320    else if (is_renderbuffer || internalFormat == 3 || internalFormat == 4 ||
2321             internalFormat == GL_RGB || internalFormat == GL_RGBA ||
2322             internalFormat == GL_RGBA2 ||
2323             internalFormat == GL_RGB4 || internalFormat == GL_RGBA4 ||
2324             internalFormat == GL_RGB8 || internalFormat == GL_RGBA8 ||
2325             internalFormat == GL_BGRA ||
2326             internalFormat == GL_RGB16F ||
2327             internalFormat == GL_RGBA16F ||
2328             internalFormat == GL_RGB32F ||
2329             internalFormat == GL_RGBA32F)
2330       bindings |= PIPE_BIND_RENDER_TARGET;
2331
2332    /* GLES allows the driver to choose any format which matches
2333     * the format+type combo, because GLES only supports unsized internal
2334     * formats and expects the driver to choose whatever suits it.
2335     */
2336    if (_mesa_is_gles(ctx)) {
2337       GLenum baseFormat = _mesa_base_tex_format(ctx, internalFormat);
2338       GLenum basePackFormat = _mesa_base_pack_format(format);
2339       GLenum iformat = internalFormat;
2340
2341       /* Treat GL_BGRA as GL_RGBA. */
2342       if (iformat == GL_BGRA)
2343          iformat = GL_RGBA;
2344
2345       /* Check if the internalformat is unsized and compatible
2346        * with the "format".
2347        */
2348       if (iformat == baseFormat && iformat == basePackFormat) {
2349          pFormat = st_choose_matching_format(st, bindings, format, type,
2350                                              ctx->Unpack.SwapBytes);
2351
2352          if (pFormat != PIPE_FORMAT_NONE)
2353             return st_pipe_format_to_mesa_format(pFormat);
2354
2355          if (!is_renderbuffer) {
2356             /* try choosing format again, this time without render
2357              * target bindings.
2358              */
2359             pFormat = st_choose_matching_format(st, PIPE_BIND_SAMPLER_VIEW,
2360                                                 format, type,
2361                                                 ctx->Unpack.SwapBytes);
2362             if (pFormat != PIPE_FORMAT_NONE)
2363                return st_pipe_format_to_mesa_format(pFormat);
2364          }
2365       }
2366    }
2367
2368    pFormat = st_choose_format(st, internalFormat, format, type,
2369                               pTarget, 0, 0, bindings, GL_TRUE);
2370
2371    if (pFormat == PIPE_FORMAT_NONE && !is_renderbuffer) {
2372       /* try choosing format again, this time without render target bindings */
2373       pFormat = st_choose_format(st, internalFormat, format, type,
2374                                  pTarget, 0, 0, PIPE_BIND_SAMPLER_VIEW,
2375                                  GL_TRUE);
2376    }
2377
2378    if (pFormat == PIPE_FORMAT_NONE) {
2379       mFormat = _mesa_glenum_to_compressed_format(internalFormat);
2380       if (st_compressed_format_fallback(st, mFormat))
2381           return mFormat;
2382
2383       /* no luck at all */
2384       return MESA_FORMAT_NONE;
2385    }
2386
2387    mFormat = st_pipe_format_to_mesa_format(pFormat);
2388
2389    /* Debugging aid */
2390    if (0) {
2391       debug_printf("%s(intFormat=%s, format=%s, type=%s) -> %s, %s\n",
2392                    __func__,
2393                    _mesa_enum_to_string(internalFormat),
2394                    _mesa_enum_to_string(format),
2395                    _mesa_enum_to_string(type),
2396                    util_format_name(pFormat),
2397                    _mesa_get_format_name(mFormat));
2398    }
2399
2400    return mFormat;
2401 }
2402
2403
2404 /**
2405  * Called via ctx->Driver.QueryInternalFormat().
2406  */
2407 static size_t
2408 st_QuerySamplesForFormat(struct gl_context *ctx, GLenum target,
2409                          GLenum internalFormat, int samples[16])
2410 {
2411    struct st_context *st = st_context(ctx);
2412    enum pipe_format format;
2413    unsigned i, bind, num_sample_counts = 0;
2414
2415    (void) target;
2416
2417    if (_mesa_is_depth_or_stencil_format(internalFormat))
2418       bind = PIPE_BIND_DEPTH_STENCIL;
2419    else
2420       bind = PIPE_BIND_RENDER_TARGET;
2421
2422    /* If an sRGB framebuffer is unsupported, sRGB formats behave like linear
2423     * formats.
2424     */
2425    if (!ctx->Extensions.EXT_sRGB) {
2426       internalFormat = _mesa_get_linear_internalformat(internalFormat);
2427    }
2428
2429    /* Set sample counts in descending order. */
2430    for (i = 16; i > 1; i--) {
2431       format = st_choose_format(st, internalFormat, GL_NONE, GL_NONE,
2432                                 PIPE_TEXTURE_2D, i, i, bind, FALSE);
2433
2434       if (format != PIPE_FORMAT_NONE) {
2435          samples[num_sample_counts++] = i;
2436       }
2437    }
2438
2439    if (!num_sample_counts) {
2440       samples[num_sample_counts++] = 1;
2441    }
2442
2443    return num_sample_counts;
2444 }
2445
2446
2447 /**
2448  * ARB_internalformat_query2 driver hook.
2449  */
2450 void
2451 st_QueryInternalFormat(struct gl_context *ctx, GLenum target,
2452                        GLenum internalFormat, GLenum pname, GLint *params)
2453 {
2454    struct st_context *st = st_context(ctx);
2455    /* The API entry-point gives us a temporary params buffer that is non-NULL
2456     * and guaranteed to have at least 16 elements.
2457     */
2458    assert(params != NULL);
2459
2460    switch (pname) {
2461    case GL_SAMPLES:
2462       st_QuerySamplesForFormat(ctx, target, internalFormat, params);
2463       break;
2464
2465    case GL_NUM_SAMPLE_COUNTS: {
2466       int samples[16];
2467       size_t num_samples;
2468       num_samples = st_QuerySamplesForFormat(ctx, target, internalFormat,
2469                                              samples);
2470       params[0] = (GLint) num_samples;
2471       break;
2472    }
2473    case GL_INTERNALFORMAT_PREFERRED: {
2474       params[0] = GL_NONE;
2475
2476       /* We need to resolve an internal format that is compatible with
2477        * the passed internal format, and optimal to the driver. By now,
2478        * we just validate that the passed internal format is supported by
2479        * the driver, and if so return the same internal format, otherwise
2480        * return GL_NONE.
2481        */
2482       unsigned bindings;
2483       if (_mesa_is_depth_or_stencil_format(internalFormat))
2484          bindings = PIPE_BIND_DEPTH_STENCIL;
2485       else
2486          bindings = PIPE_BIND_RENDER_TARGET;
2487       enum pipe_format pformat = st_choose_format(st,
2488                                                   internalFormat,
2489                                                   GL_NONE,
2490                                                   GL_NONE,
2491                                                   PIPE_TEXTURE_2D, 0, 0,
2492                                                   bindings, FALSE);
2493       if (pformat)
2494          params[0] = internalFormat;
2495       break;
2496    }
2497    default:
2498       /* For the rest of the pnames, we call back the Mesa's default
2499        * function for drivers that don't implement ARB_internalformat_query2.
2500        */
2501       _mesa_query_internal_format_default(ctx, target, internalFormat, pname,
2502                                           params);
2503    }
2504 }
2505
2506
2507 /**
2508  * This is used for translating texture border color and the clear
2509  * color.  For example, the clear color is interpreted according to
2510  * the renderbuffer's base format.  For example, if clearing a
2511  * GL_LUMINANCE buffer, we'll return colorOut[0] = colorOut[1] =
2512  * colorOut[2] = colorIn[0].
2513  * Similarly for texture border colors.
2514  */
2515 void
2516 st_translate_color(const union gl_color_union *colorIn,
2517                    union pipe_color_union *colorOut,
2518                    GLenum baseFormat, GLboolean is_integer)
2519 {
2520    if (is_integer) {
2521       const int *in = colorIn->i;
2522       int *out = colorOut->i;
2523
2524       switch (baseFormat) {
2525       case GL_RED:
2526          out[0] = in[0];
2527          out[1] = 0;
2528          out[2] = 0;
2529          out[3] = 1;
2530          break;
2531       case GL_RG:
2532          out[0] = in[0];
2533          out[1] = in[1];
2534          out[2] = 0;
2535          out[3] = 1;
2536          break;
2537       case GL_RGB:
2538          out[0] = in[0];
2539          out[1] = in[1];
2540          out[2] = in[2];
2541          out[3] = 1;
2542          break;
2543       case GL_ALPHA:
2544          out[0] = out[1] = out[2] = 0;
2545          out[3] = in[3];
2546          break;
2547       case GL_LUMINANCE:
2548          out[0] = out[1] = out[2] = in[0];
2549          out[3] = 1;
2550          break;
2551       case GL_LUMINANCE_ALPHA:
2552          out[0] = out[1] = out[2] = in[0];
2553          out[3] = in[3];
2554          break;
2555       case GL_INTENSITY:
2556          out[0] = out[1] = out[2] = out[3] = in[0];
2557          break;
2558       default:
2559          COPY_4V(out, in);
2560       }
2561    }
2562    else {
2563       const float *in = colorIn->f;
2564       float *out = colorOut->f;
2565
2566       switch (baseFormat) {
2567       case GL_RED:
2568          out[0] = in[0];
2569          out[1] = 0.0F;
2570          out[2] = 0.0F;
2571          out[3] = 1.0F;
2572          break;
2573       case GL_RG:
2574          out[0] = in[0];
2575          out[1] = in[1];
2576          out[2] = 0.0F;
2577          out[3] = 1.0F;
2578          break;
2579       case GL_RGB:
2580          out[0] = in[0];
2581          out[1] = in[1];
2582          out[2] = in[2];
2583          out[3] = 1.0F;
2584          break;
2585       case GL_ALPHA:
2586          out[0] = out[1] = out[2] = 0.0F;
2587          out[3] = in[3];
2588          break;
2589       case GL_LUMINANCE:
2590          out[0] = out[1] = out[2] = in[0];
2591          out[3] = 1.0F;
2592          break;
2593       case GL_LUMINANCE_ALPHA:
2594          out[0] = out[1] = out[2] = in[0];
2595          out[3] = in[3];
2596          break;
2597       /* Stencil border is tricky on some hw. Help drivers a little here. */
2598       case GL_STENCIL_INDEX:
2599       case GL_INTENSITY:
2600          out[0] = out[1] = out[2] = out[3] = in[0];
2601          break;
2602       default:
2603          COPY_4V(out, in);
2604       }
2605    }
2606 }