src/gallium/drivers/svga/svga_format.c

   1 /**********************************************************
   2  * Copyright 2011 VMware, Inc.  All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  **********************************************************/
  25
  26
  27 #include "pipe/p_format.h"
  28 #include "util/u_debug.h"
  29 #include "util/u_memory.h"
  30
  31 #include "svga_winsys.h"
  32 #include "svga_screen.h"
  33 #include "svga_format.h"
  34
  35
  36 /*
  37  * Translate from gallium format to SVGA3D format.
  38  */
  39 SVGA3dSurfaceFormat
  40 svga_translate_format(struct svga_screen *ss,
  41                       enum pipe_format format,
  42                       unsigned bind)
  43 {
  44    switch(format) {
  45
  46    case PIPE_FORMAT_B8G8R8A8_UNORM:
  47       return SVGA3D_A8R8G8B8;
  48    case PIPE_FORMAT_B8G8R8X8_UNORM:
  49       return SVGA3D_X8R8G8B8;
  50
  51       /* Required for GL2.1:
  52        */
  53    case PIPE_FORMAT_B8G8R8A8_SRGB:
  54       return SVGA3D_A8R8G8B8;
  55
  56    case PIPE_FORMAT_B5G6R5_UNORM:
  57       return SVGA3D_R5G6B5;
  58    case PIPE_FORMAT_B5G5R5A1_UNORM:
  59       return SVGA3D_A1R5G5B5;
  60    case PIPE_FORMAT_B4G4R4A4_UNORM:
  61       return SVGA3D_A4R4G4B4;
  62
  63    case PIPE_FORMAT_Z16_UNORM:
  64       return bind & PIPE_BIND_SAMPLER_VIEW ? ss->depth.z16 : SVGA3D_Z_D16;
  65    case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
  66       return bind & PIPE_BIND_SAMPLER_VIEW ? ss->depth.s8z24 : SVGA3D_Z_D24S8;
  67    case PIPE_FORMAT_X8Z24_UNORM:
  68       return bind & PIPE_BIND_SAMPLER_VIEW ? ss->depth.x8z24 : SVGA3D_Z_D24X8;
  69
  70    case PIPE_FORMAT_A8_UNORM:
  71       return SVGA3D_ALPHA8;
  72    case PIPE_FORMAT_L8_UNORM:
  73       return SVGA3D_LUMINANCE8;
  74
  75    case PIPE_FORMAT_DXT1_RGB:
  76    case PIPE_FORMAT_DXT1_RGBA:
  77       return SVGA3D_DXT1;
  78    case PIPE_FORMAT_DXT3_RGBA:
  79       return SVGA3D_DXT3;
  80    case PIPE_FORMAT_DXT5_RGBA:
  81       return SVGA3D_DXT5;
  82
  83    case PIPE_FORMAT_Z32_UNORM:
  84       /* SVGA3D_Z_D32 is not yet unsupported */
  85       /* fall-through */
  86    default:
  87       return SVGA3D_FORMAT_INVALID;
  88    }
  89 }
  90
  91
  92 /*
  93  * Format capability description entry.
  94  */
  95 struct format_cap {
  96    SVGA3dSurfaceFormat format;
  97
  98    /*
  99     * Capability index corresponding to the format.
 100     */
 101    SVGA3dDevCapIndex index;
 102
 103    /*
 104     * Mask of supported SVGA3dFormatOp operations, to be inferred when the
 105     * capability is not explicitly present.
 106     */
 107    uint32 defaultOperations;
 108 };
 109
 110
 111 /*
 112  * Format capability description table.
 113  *
 114  * Ordererd by increasing SVGA3dSurfaceFormat value, but with gaps.
 115  */
 116 static const struct format_cap format_cap_table[] = {
 117    {
 118       SVGA3D_X8R8G8B8,
 119       SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8,
 120       SVGA3DFORMAT_OP_TEXTURE |
 121       SVGA3DFORMAT_OP_CUBETEXTURE |
 122       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 123       SVGA3DFORMAT_OP_DISPLAYMODE |
 124       SVGA3DFORMAT_OP_3DACCELERATION |
 125       SVGA3DFORMAT_OP_CONVERT_TO_ARGB |
 126       SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB |
 127       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 128       SVGA3DFORMAT_OP_SRGBREAD |
 129       SVGA3DFORMAT_OP_SRGBWRITE |
 130       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 131       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 132    },
 133    {
 134       SVGA3D_A8R8G8B8,
 135       SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8,
 136       SVGA3DFORMAT_OP_TEXTURE |
 137       SVGA3DFORMAT_OP_CUBETEXTURE |
 138       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 139       SVGA3DFORMAT_OP_CONVERT_TO_ARGB |
 140       SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB |
 141       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 142       SVGA3DFORMAT_OP_SRGBREAD |
 143       SVGA3DFORMAT_OP_SRGBWRITE |
 144       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 145       SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET |
 146       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 147    },
 148    {
 149       SVGA3D_R5G6B5,
 150       SVGA3D_DEVCAP_SURFACEFMT_R5G6B5,
 151       SVGA3DFORMAT_OP_TEXTURE |
 152       SVGA3DFORMAT_OP_CUBETEXTURE |
 153       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 154       SVGA3DFORMAT_OP_DISPLAYMODE |
 155       SVGA3DFORMAT_OP_3DACCELERATION |
 156       SVGA3DFORMAT_OP_CONVERT_TO_ARGB |
 157       SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB |
 158       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 159       SVGA3DFORMAT_OP_SRGBREAD |
 160       SVGA3DFORMAT_OP_SRGBWRITE |
 161       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 162       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 163    },
 164    {
 165       SVGA3D_X1R5G5B5,
 166       SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5,
 167       SVGA3DFORMAT_OP_TEXTURE |
 168       SVGA3DFORMAT_OP_CUBETEXTURE |
 169       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 170       SVGA3DFORMAT_OP_CONVERT_TO_ARGB |
 171       SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB |
 172       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 173       SVGA3DFORMAT_OP_SRGBREAD |
 174       SVGA3DFORMAT_OP_SRGBWRITE |
 175       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 176       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 177    },
 178    {
 179       SVGA3D_A1R5G5B5,
 180       SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5,
 181       SVGA3DFORMAT_OP_TEXTURE |
 182       SVGA3DFORMAT_OP_CUBETEXTURE |
 183       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 184       SVGA3DFORMAT_OP_CONVERT_TO_ARGB |
 185       SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB |
 186       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 187       SVGA3DFORMAT_OP_SRGBREAD |
 188       SVGA3DFORMAT_OP_SRGBWRITE |
 189       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 190       SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET |
 191       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 192    },
 193    {
 194       SVGA3D_A4R4G4B4,
 195       SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4,
 196       SVGA3DFORMAT_OP_TEXTURE |
 197       SVGA3DFORMAT_OP_CUBETEXTURE |
 198       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 199       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 200       SVGA3DFORMAT_OP_SRGBREAD |
 201       SVGA3DFORMAT_OP_SRGBWRITE |
 202       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 203       SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET |
 204       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 205    },
 206    /*
 207     * SVGA3D_Z_D32 is not yet supported, and has no corresponding
 208     * SVGA3D_DEVCAP_xxx.
 209     */
 210    {
 211       SVGA3D_Z_D16,
 212       SVGA3D_DEVCAP_SURFACEFMT_Z_D16,
 213       SVGA3DFORMAT_OP_ZSTENCIL |
 214       SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
 215    },
 216    {
 217       SVGA3D_Z_D24S8,
 218       SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8,
 219       SVGA3DFORMAT_OP_ZSTENCIL |
 220       SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
 221    },
 222    {
 223       SVGA3D_Z_D15S1,
 224       SVGA3D_DEVCAP_MAX,
 225       SVGA3DFORMAT_OP_ZSTENCIL |
 226       SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
 227    },
 228    {
 229       SVGA3D_LUMINANCE8,
 230       SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8,
 231       SVGA3DFORMAT_OP_TEXTURE |
 232       SVGA3DFORMAT_OP_CUBETEXTURE |
 233       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 234       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 235    },
 236    {
 237       SVGA3D_LUMINANCE8_ALPHA8,
 238       SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8,
 239       SVGA3DFORMAT_OP_TEXTURE |
 240       SVGA3DFORMAT_OP_CUBETEXTURE |
 241       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 242       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 243    },
 244    /*
 245     * SVGA3D_LUMINANCE4_ALPHA4 is not supported, and has no corresponding
 246     * SVGA3D_DEVCAP_xxx.
 247     */
 248    {
 249       SVGA3D_LUMINANCE16,
 250       SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16,
 251       SVGA3DFORMAT_OP_TEXTURE |
 252       SVGA3DFORMAT_OP_CUBETEXTURE |
 253       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 254       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 255    },
 256    {
 257       SVGA3D_DXT1,
 258       SVGA3D_DEVCAP_SURFACEFMT_DXT1,
 259       SVGA3DFORMAT_OP_TEXTURE |
 260       SVGA3DFORMAT_OP_SRGBREAD |
 261       SVGA3DFORMAT_OP_CUBETEXTURE |
 262       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 263    },
 264    {
 265       SVGA3D_DXT2,
 266       SVGA3D_DEVCAP_SURFACEFMT_DXT2,
 267       SVGA3DFORMAT_OP_TEXTURE |
 268       SVGA3DFORMAT_OP_SRGBREAD |
 269       SVGA3DFORMAT_OP_CUBETEXTURE |
 270       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 271    },
 272    {
 273       SVGA3D_DXT3,
 274       SVGA3D_DEVCAP_SURFACEFMT_DXT3,
 275       SVGA3DFORMAT_OP_TEXTURE |
 276       SVGA3DFORMAT_OP_SRGBREAD |
 277       SVGA3DFORMAT_OP_CUBETEXTURE |
 278       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 279    },
 280    {
 281       SVGA3D_DXT4,
 282       SVGA3D_DEVCAP_SURFACEFMT_DXT4,
 283       SVGA3DFORMAT_OP_TEXTURE |
 284       SVGA3DFORMAT_OP_SRGBREAD |
 285       SVGA3DFORMAT_OP_CUBETEXTURE |
 286       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 287    },
 288    {
 289       SVGA3D_DXT5,
 290       SVGA3D_DEVCAP_SURFACEFMT_DXT5,
 291       SVGA3DFORMAT_OP_TEXTURE |
 292       SVGA3DFORMAT_OP_SRGBREAD |
 293       SVGA3DFORMAT_OP_CUBETEXTURE |
 294       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 295    },
 296    {
 297       SVGA3D_BUMPU8V8,
 298       SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8,
 299       SVGA3DFORMAT_OP_TEXTURE |
 300       SVGA3DFORMAT_OP_CUBETEXTURE |
 301       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 302       SVGA3DFORMAT_OP_BUMPMAP |
 303       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 304    },
 305    /*
 306     * SVGA3D_BUMPL6V5U5 is unsupported; it has no corresponding
 307     * SVGA3D_DEVCAP_xxx.
 308     */
 309    {
 310       SVGA3D_BUMPX8L8V8U8,
 311       SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8,
 312       SVGA3DFORMAT_OP_TEXTURE |
 313       SVGA3DFORMAT_OP_CUBETEXTURE |
 314       SVGA3DFORMAT_OP_BUMPMAP |
 315       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 316    },
 317    /*
 318     * SVGA3D_BUMPL8V8U8 is unsupported; it has no corresponding
 319     * SVGA3D_DEVCAP_xxx. SVGA3D_BUMPX8L8V8U8 should be used instead.
 320     */
 321    {
 322       SVGA3D_ARGB_S10E5,
 323       SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5,
 324       SVGA3DFORMAT_OP_TEXTURE |
 325       SVGA3DFORMAT_OP_CUBETEXTURE |
 326       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 327       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 328       SVGA3DFORMAT_OP_SRGBREAD |
 329       SVGA3DFORMAT_OP_SRGBWRITE |
 330       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 331       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 332    },
 333    {
 334       SVGA3D_ARGB_S23E8,
 335       SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8,
 336       SVGA3DFORMAT_OP_TEXTURE |
 337       SVGA3DFORMAT_OP_CUBETEXTURE |
 338       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 339       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 340       SVGA3DFORMAT_OP_SRGBREAD |
 341       SVGA3DFORMAT_OP_SRGBWRITE |
 342       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 343       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 344    },
 345    {
 346       SVGA3D_A2R10G10B10,
 347       SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10,
 348       SVGA3DFORMAT_OP_TEXTURE |
 349       SVGA3DFORMAT_OP_CUBETEXTURE |
 350       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 351       SVGA3DFORMAT_OP_CONVERT_TO_ARGB |
 352       SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB |
 353       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 354       SVGA3DFORMAT_OP_SRGBREAD |
 355       SVGA3DFORMAT_OP_SRGBWRITE |
 356       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 357       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 358    },
 359    /*
 360     * SVGA3D_V8U8 is unsupported; it has no corresponding
 361     * SVGA3D_DEVCAP_xxx. SVGA3D_BUMPU8V8 should be used instead.
 362     */
 363    {
 364       SVGA3D_Q8W8V8U8,
 365       SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8,
 366       SVGA3DFORMAT_OP_TEXTURE |
 367       SVGA3DFORMAT_OP_CUBETEXTURE |
 368       SVGA3DFORMAT_OP_BUMPMAP |
 369       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 370    },
 371    {
 372       SVGA3D_CxV8U8,
 373       SVGA3D_DEVCAP_SURFACEFMT_CxV8U8,
 374       SVGA3DFORMAT_OP_TEXTURE |
 375       SVGA3DFORMAT_OP_BUMPMAP |
 376       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 377    },
 378    /*
 379     * SVGA3D_X8L8V8U8 is unsupported; it has no corresponding
 380     * SVGA3D_DEVCAP_xxx. SVGA3D_BUMPX8L8V8U8 should be used instead.
 381     */
 382    {
 383       SVGA3D_A2W10V10U10,
 384       SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10,
 385       SVGA3DFORMAT_OP_TEXTURE |
 386       SVGA3DFORMAT_OP_BUMPMAP |
 387       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 388    },
 389    {
 390       SVGA3D_ALPHA8,
 391       SVGA3D_DEVCAP_SURFACEFMT_ALPHA8,
 392       SVGA3DFORMAT_OP_TEXTURE |
 393       SVGA3DFORMAT_OP_CUBETEXTURE |
 394       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 395       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 396    },
 397    {
 398       SVGA3D_R_S10E5,
 399       SVGA3D_DEVCAP_SURFACEFMT_R_S10E5,
 400       SVGA3DFORMAT_OP_TEXTURE |
 401       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 402       SVGA3DFORMAT_OP_CUBETEXTURE |
 403       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 404       SVGA3DFORMAT_OP_SRGBREAD |
 405       SVGA3DFORMAT_OP_SRGBWRITE |
 406       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 407       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 408    },
 409    {
 410       SVGA3D_R_S23E8,
 411       SVGA3D_DEVCAP_SURFACEFMT_R_S23E8,
 412       SVGA3DFORMAT_OP_TEXTURE |
 413       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 414       SVGA3DFORMAT_OP_CUBETEXTURE |
 415       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 416       SVGA3DFORMAT_OP_SRGBREAD |
 417       SVGA3DFORMAT_OP_SRGBWRITE |
 418       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 419       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 420    },
 421    {
 422       SVGA3D_RG_S10E5,
 423       SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5,
 424       SVGA3DFORMAT_OP_TEXTURE |
 425       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 426       SVGA3DFORMAT_OP_CUBETEXTURE |
 427       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 428       SVGA3DFORMAT_OP_SRGBREAD |
 429       SVGA3DFORMAT_OP_SRGBWRITE |
 430       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 431       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 432    },
 433    {
 434       SVGA3D_RG_S23E8,
 435       SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8,
 436       SVGA3DFORMAT_OP_TEXTURE |
 437       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 438       SVGA3DFORMAT_OP_CUBETEXTURE |
 439       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 440       SVGA3DFORMAT_OP_SRGBREAD |
 441       SVGA3DFORMAT_OP_SRGBWRITE |
 442       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 443       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 444    },
 445    /*
 446     * SVGA3D_BUFFER is a placeholder format for index/vertex buffers.
 447     */
 448    {
 449       SVGA3D_Z_D24X8,
 450       SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8,
 451       SVGA3DFORMAT_OP_ZSTENCIL |
 452       SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
 453    },
 454    {
 455       SVGA3D_V16U16,
 456       SVGA3D_DEVCAP_SURFACEFMT_V16U16,
 457       SVGA3DFORMAT_OP_TEXTURE |
 458       SVGA3DFORMAT_OP_CUBETEXTURE |
 459       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 460       SVGA3DFORMAT_OP_BUMPMAP |
 461       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 462    },
 463    {
 464       SVGA3D_G16R16,
 465       SVGA3D_DEVCAP_SURFACEFMT_G16R16,
 466       SVGA3DFORMAT_OP_TEXTURE |
 467       SVGA3DFORMAT_OP_CUBETEXTURE |
 468       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 469       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 470       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 471       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 472    },
 473    {
 474       SVGA3D_A16B16G16R16,
 475       SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16,
 476       SVGA3DFORMAT_OP_TEXTURE |
 477       SVGA3DFORMAT_OP_CUBETEXTURE |
 478       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 479       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 480       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 481       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 482    },
 483    {
 484       SVGA3D_UYVY,
 485       SVGA3D_DEVCAP_SURFACEFMT_UYVY,
 486       0
 487    },
 488    {
 489       SVGA3D_YUY2,
 490       SVGA3D_DEVCAP_SURFACEFMT_YUY2,
 491       0
 492    },
 493    {
 494       SVGA3D_NV12,
 495       SVGA3D_DEVCAP_SURFACEFMT_NV12,
 496       0
 497    },
 498    {
 499       SVGA3D_AYUV,
 500       SVGA3D_DEVCAP_SURFACEFMT_AYUV,
 501       0
 502    },
 503    {
 504       SVGA3D_BC4_UNORM,
 505       SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM,
 506       0
 507    },
 508    {
 509       SVGA3D_BC5_UNORM,
 510       SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM,
 511       0
 512    },
 513    {
 514       SVGA3D_Z_DF16,
 515       SVGA3D_DEVCAP_SURFACEFMT_Z_DF16,
 516       0
 517    },
 518    {
 519       SVGA3D_Z_DF24,
 520       SVGA3D_DEVCAP_SURFACEFMT_Z_DF24,
 521       0
 522    },
 523    {
 524       SVGA3D_Z_D24S8_INT,
 525       SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT,
 526       0
 527    },
 528 };
 529
 530
 531 /*
 532  * Get format capabilities from the host.  It takes in consideration
 533  * deprecated/unsupported formats, and formats which are implicitely assumed to
 534  * be supported when the host does not provide an explicit capability entry.
 535  */
 536 void
 537 svga_get_format_cap(struct svga_screen *ss,
 538                     SVGA3dSurfaceFormat format,
 539                     SVGA3dSurfaceFormatCaps *caps)
 540 {
 541    const struct format_cap *entry;
 542
 543    for (entry = format_cap_table; entry < format_cap_table + Elements(format_cap_table); ++entry) {
 544       if (entry->format == format) {
 545          struct svga_winsys_screen *sws = ss->sws;
 546          SVGA3dDevCapResult result;
 547
 548          if (sws->get_cap(sws, entry->index, &result)) {
 549             /* Explicitly advertised format */
 550             caps->value = result.u;
 551          } else {
 552             /* Implicitly advertised format -- use default caps */
 553             caps->value = entry->defaultOperations;
 554          }
 555
 556          return;
 557       }
 558    }
 559
 560    /* Unsupported format */
 561    caps->value = 0;
 562 }