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    /* Float formats (only 1, 2 and 4-component formats supported) */
  84    case PIPE_FORMAT_R32_FLOAT:
  85       return SVGA3D_R_S23E8;
  86    case PIPE_FORMAT_R32G32_FLOAT:
  87       return SVGA3D_RG_S23E8;
  88    case PIPE_FORMAT_R32G32B32A32_FLOAT:
  89       return SVGA3D_ARGB_S23E8;
  90    case PIPE_FORMAT_R16_FLOAT:
  91       return SVGA3D_R_S10E5;
  92    case PIPE_FORMAT_R16G16_FLOAT:
  93       return SVGA3D_RG_S10E5;
  94    case PIPE_FORMAT_R16G16B16A16_FLOAT:
  95       return SVGA3D_ARGB_S10E5;
  96
  97    case PIPE_FORMAT_Z32_UNORM:
  98       /* SVGA3D_Z_D32 is not yet unsupported */
  99       /* fall-through */
 100    default:
 101       return SVGA3D_FORMAT_INVALID;
 102    }
 103 }
 104
 105
 106 /*
 107  * Format capability description entry.
 108  */
 109 struct format_cap {
 110    SVGA3dSurfaceFormat format;
 111
 112    /*
 113     * Capability index corresponding to the format.
 114     */
 115    SVGA3dDevCapIndex index;
 116
 117    /*
 118     * Mask of supported SVGA3dFormatOp operations, to be inferred when the
 119     * capability is not explicitly present.
 120     */
 121    uint32 defaultOperations;
 122 };
 123
 124
 125 /*
 126  * Format capability description table.
 127  *
 128  * Ordererd by increasing SVGA3dSurfaceFormat value, but with gaps.
 129  */
 130 static const struct format_cap format_cap_table[] = {
 131    {
 132       SVGA3D_X8R8G8B8,
 133       SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8,
 134       SVGA3DFORMAT_OP_TEXTURE |
 135       SVGA3DFORMAT_OP_CUBETEXTURE |
 136       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 137       SVGA3DFORMAT_OP_DISPLAYMODE |
 138       SVGA3DFORMAT_OP_3DACCELERATION |
 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_OFFSCREEN_RENDERTARGET
 146    },
 147    {
 148       SVGA3D_A8R8G8B8,
 149       SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8,
 150       SVGA3DFORMAT_OP_TEXTURE |
 151       SVGA3DFORMAT_OP_CUBETEXTURE |
 152       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 153       SVGA3DFORMAT_OP_CONVERT_TO_ARGB |
 154       SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB |
 155       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 156       SVGA3DFORMAT_OP_SRGBREAD |
 157       SVGA3DFORMAT_OP_SRGBWRITE |
 158       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 159       SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET |
 160       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 161    },
 162    {
 163       SVGA3D_R5G6B5,
 164       SVGA3D_DEVCAP_SURFACEFMT_R5G6B5,
 165       SVGA3DFORMAT_OP_TEXTURE |
 166       SVGA3DFORMAT_OP_CUBETEXTURE |
 167       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 168       SVGA3DFORMAT_OP_DISPLAYMODE |
 169       SVGA3DFORMAT_OP_3DACCELERATION |
 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_X1R5G5B5,
 180       SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5,
 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_OFFSCREEN_RENDERTARGET
 191    },
 192    {
 193       SVGA3D_A1R5G5B5,
 194       SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5,
 195       SVGA3DFORMAT_OP_TEXTURE |
 196       SVGA3DFORMAT_OP_CUBETEXTURE |
 197       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 198       SVGA3DFORMAT_OP_CONVERT_TO_ARGB |
 199       SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB |
 200       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 201       SVGA3DFORMAT_OP_SRGBREAD |
 202       SVGA3DFORMAT_OP_SRGBWRITE |
 203       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 204       SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET |
 205       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 206    },
 207    {
 208       SVGA3D_A4R4G4B4,
 209       SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4,
 210       SVGA3DFORMAT_OP_TEXTURE |
 211       SVGA3DFORMAT_OP_CUBETEXTURE |
 212       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 213       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 214       SVGA3DFORMAT_OP_SRGBREAD |
 215       SVGA3DFORMAT_OP_SRGBWRITE |
 216       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 217       SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET |
 218       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 219    },
 220    /*
 221     * SVGA3D_Z_D32 is not yet supported, and has no corresponding
 222     * SVGA3D_DEVCAP_xxx.
 223     */
 224    {
 225       SVGA3D_Z_D16,
 226       SVGA3D_DEVCAP_SURFACEFMT_Z_D16,
 227       SVGA3DFORMAT_OP_ZSTENCIL |
 228       SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
 229    },
 230    {
 231       SVGA3D_Z_D24S8,
 232       SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8,
 233       SVGA3DFORMAT_OP_ZSTENCIL |
 234       SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
 235    },
 236    {
 237       SVGA3D_Z_D15S1,
 238       SVGA3D_DEVCAP_MAX,
 239       SVGA3DFORMAT_OP_ZSTENCIL |
 240       SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
 241    },
 242    {
 243       SVGA3D_LUMINANCE8,
 244       SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8,
 245       SVGA3DFORMAT_OP_TEXTURE |
 246       SVGA3DFORMAT_OP_CUBETEXTURE |
 247       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 248       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 249    },
 250    {
 251       SVGA3D_LUMINANCE8_ALPHA8,
 252       SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8,
 253       SVGA3DFORMAT_OP_TEXTURE |
 254       SVGA3DFORMAT_OP_CUBETEXTURE |
 255       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 256       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 257    },
 258    /*
 259     * SVGA3D_LUMINANCE4_ALPHA4 is not supported, and has no corresponding
 260     * SVGA3D_DEVCAP_xxx.
 261     */
 262    {
 263       SVGA3D_LUMINANCE16,
 264       SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16,
 265       SVGA3DFORMAT_OP_TEXTURE |
 266       SVGA3DFORMAT_OP_CUBETEXTURE |
 267       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 268       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 269    },
 270    {
 271       SVGA3D_DXT1,
 272       SVGA3D_DEVCAP_SURFACEFMT_DXT1,
 273       SVGA3DFORMAT_OP_TEXTURE |
 274       SVGA3DFORMAT_OP_SRGBREAD |
 275       SVGA3DFORMAT_OP_CUBETEXTURE |
 276       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 277    },
 278    {
 279       SVGA3D_DXT2,
 280       SVGA3D_DEVCAP_SURFACEFMT_DXT2,
 281       SVGA3DFORMAT_OP_TEXTURE |
 282       SVGA3DFORMAT_OP_SRGBREAD |
 283       SVGA3DFORMAT_OP_CUBETEXTURE |
 284       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 285    },
 286    {
 287       SVGA3D_DXT3,
 288       SVGA3D_DEVCAP_SURFACEFMT_DXT3,
 289       SVGA3DFORMAT_OP_TEXTURE |
 290       SVGA3DFORMAT_OP_SRGBREAD |
 291       SVGA3DFORMAT_OP_CUBETEXTURE |
 292       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 293    },
 294    {
 295       SVGA3D_DXT4,
 296       SVGA3D_DEVCAP_SURFACEFMT_DXT4,
 297       SVGA3DFORMAT_OP_TEXTURE |
 298       SVGA3DFORMAT_OP_SRGBREAD |
 299       SVGA3DFORMAT_OP_CUBETEXTURE |
 300       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 301    },
 302    {
 303       SVGA3D_DXT5,
 304       SVGA3D_DEVCAP_SURFACEFMT_DXT5,
 305       SVGA3DFORMAT_OP_TEXTURE |
 306       SVGA3DFORMAT_OP_SRGBREAD |
 307       SVGA3DFORMAT_OP_CUBETEXTURE |
 308       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 309    },
 310    {
 311       SVGA3D_BUMPU8V8,
 312       SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8,
 313       SVGA3DFORMAT_OP_TEXTURE |
 314       SVGA3DFORMAT_OP_CUBETEXTURE |
 315       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 316       SVGA3DFORMAT_OP_BUMPMAP |
 317       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 318    },
 319    /*
 320     * SVGA3D_BUMPL6V5U5 is unsupported; it has no corresponding
 321     * SVGA3D_DEVCAP_xxx.
 322     */
 323    {
 324       SVGA3D_BUMPX8L8V8U8,
 325       SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8,
 326       SVGA3DFORMAT_OP_TEXTURE |
 327       SVGA3DFORMAT_OP_CUBETEXTURE |
 328       SVGA3DFORMAT_OP_BUMPMAP |
 329       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 330    },
 331    /*
 332     * SVGA3D_BUMPL8V8U8 is unsupported; it has no corresponding
 333     * SVGA3D_DEVCAP_xxx. SVGA3D_BUMPX8L8V8U8 should be used instead.
 334     */
 335    {
 336       SVGA3D_ARGB_S10E5,
 337       SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5,
 338       SVGA3DFORMAT_OP_TEXTURE |
 339       SVGA3DFORMAT_OP_CUBETEXTURE |
 340       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 341       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 342       SVGA3DFORMAT_OP_SRGBREAD |
 343       SVGA3DFORMAT_OP_SRGBWRITE |
 344       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 345       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 346    },
 347    {
 348       SVGA3D_ARGB_S23E8,
 349       SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8,
 350       SVGA3DFORMAT_OP_TEXTURE |
 351       SVGA3DFORMAT_OP_CUBETEXTURE |
 352       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 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_A2R10G10B10,
 361       SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10,
 362       SVGA3DFORMAT_OP_TEXTURE |
 363       SVGA3DFORMAT_OP_CUBETEXTURE |
 364       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 365       SVGA3DFORMAT_OP_CONVERT_TO_ARGB |
 366       SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB |
 367       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 368       SVGA3DFORMAT_OP_SRGBREAD |
 369       SVGA3DFORMAT_OP_SRGBWRITE |
 370       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 371       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 372    },
 373    /*
 374     * SVGA3D_V8U8 is unsupported; it has no corresponding
 375     * SVGA3D_DEVCAP_xxx. SVGA3D_BUMPU8V8 should be used instead.
 376     */
 377    {
 378       SVGA3D_Q8W8V8U8,
 379       SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8,
 380       SVGA3DFORMAT_OP_TEXTURE |
 381       SVGA3DFORMAT_OP_CUBETEXTURE |
 382       SVGA3DFORMAT_OP_BUMPMAP |
 383       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 384    },
 385    {
 386       SVGA3D_CxV8U8,
 387       SVGA3D_DEVCAP_SURFACEFMT_CxV8U8,
 388       SVGA3DFORMAT_OP_TEXTURE |
 389       SVGA3DFORMAT_OP_BUMPMAP |
 390       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 391    },
 392    /*
 393     * SVGA3D_X8L8V8U8 is unsupported; it has no corresponding
 394     * SVGA3D_DEVCAP_xxx. SVGA3D_BUMPX8L8V8U8 should be used instead.
 395     */
 396    {
 397       SVGA3D_A2W10V10U10,
 398       SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10,
 399       SVGA3DFORMAT_OP_TEXTURE |
 400       SVGA3DFORMAT_OP_BUMPMAP |
 401       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 402    },
 403    {
 404       SVGA3D_ALPHA8,
 405       SVGA3D_DEVCAP_SURFACEFMT_ALPHA8,
 406       SVGA3DFORMAT_OP_TEXTURE |
 407       SVGA3DFORMAT_OP_CUBETEXTURE |
 408       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 409       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 410    },
 411    {
 412       SVGA3D_R_S10E5,
 413       SVGA3D_DEVCAP_SURFACEFMT_R_S10E5,
 414       SVGA3DFORMAT_OP_TEXTURE |
 415       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 416       SVGA3DFORMAT_OP_CUBETEXTURE |
 417       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 418       SVGA3DFORMAT_OP_SRGBREAD |
 419       SVGA3DFORMAT_OP_SRGBWRITE |
 420       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 421       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 422    },
 423    {
 424       SVGA3D_R_S23E8,
 425       SVGA3D_DEVCAP_SURFACEFMT_R_S23E8,
 426       SVGA3DFORMAT_OP_TEXTURE |
 427       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 428       SVGA3DFORMAT_OP_CUBETEXTURE |
 429       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 430       SVGA3DFORMAT_OP_SRGBREAD |
 431       SVGA3DFORMAT_OP_SRGBWRITE |
 432       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 433       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 434    },
 435    {
 436       SVGA3D_RG_S10E5,
 437       SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5,
 438       SVGA3DFORMAT_OP_TEXTURE |
 439       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 440       SVGA3DFORMAT_OP_CUBETEXTURE |
 441       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 442       SVGA3DFORMAT_OP_SRGBREAD |
 443       SVGA3DFORMAT_OP_SRGBWRITE |
 444       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 445       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 446    },
 447    {
 448       SVGA3D_RG_S23E8,
 449       SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8,
 450       SVGA3DFORMAT_OP_TEXTURE |
 451       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 452       SVGA3DFORMAT_OP_CUBETEXTURE |
 453       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 454       SVGA3DFORMAT_OP_SRGBREAD |
 455       SVGA3DFORMAT_OP_SRGBWRITE |
 456       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 457       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 458    },
 459    /*
 460     * SVGA3D_BUFFER is a placeholder format for index/vertex buffers.
 461     */
 462    {
 463       SVGA3D_Z_D24X8,
 464       SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8,
 465       SVGA3DFORMAT_OP_ZSTENCIL |
 466       SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
 467    },
 468    {
 469       SVGA3D_V16U16,
 470       SVGA3D_DEVCAP_SURFACEFMT_V16U16,
 471       SVGA3DFORMAT_OP_TEXTURE |
 472       SVGA3DFORMAT_OP_CUBETEXTURE |
 473       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 474       SVGA3DFORMAT_OP_BUMPMAP |
 475       SVGA3DFORMAT_OP_OFFSCREENPLAIN
 476    },
 477    {
 478       SVGA3D_G16R16,
 479       SVGA3D_DEVCAP_SURFACEFMT_G16R16,
 480       SVGA3DFORMAT_OP_TEXTURE |
 481       SVGA3DFORMAT_OP_CUBETEXTURE |
 482       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 483       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 484       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 485       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 486    },
 487    {
 488       SVGA3D_A16B16G16R16,
 489       SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16,
 490       SVGA3DFORMAT_OP_TEXTURE |
 491       SVGA3DFORMAT_OP_CUBETEXTURE |
 492       SVGA3DFORMAT_OP_VOLUMETEXTURE |
 493       SVGA3DFORMAT_OP_OFFSCREENPLAIN |
 494       SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET |
 495       SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
 496    },
 497    {
 498       SVGA3D_UYVY,
 499       SVGA3D_DEVCAP_SURFACEFMT_UYVY,
 500       0
 501    },
 502    {
 503       SVGA3D_YUY2,
 504       SVGA3D_DEVCAP_SURFACEFMT_YUY2,
 505       0
 506    },
 507    {
 508       SVGA3D_NV12,
 509       SVGA3D_DEVCAP_SURFACEFMT_NV12,
 510       0
 511    },
 512    {
 513       SVGA3D_AYUV,
 514       SVGA3D_DEVCAP_SURFACEFMT_AYUV,
 515       0
 516    },
 517    {
 518       SVGA3D_BC4_UNORM,
 519       SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM,
 520       0
 521    },
 522    {
 523       SVGA3D_BC5_UNORM,
 524       SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM,
 525       0
 526    },
 527    {
 528       SVGA3D_Z_DF16,
 529       SVGA3D_DEVCAP_SURFACEFMT_Z_DF16,
 530       0
 531    },
 532    {
 533       SVGA3D_Z_DF24,
 534       SVGA3D_DEVCAP_SURFACEFMT_Z_DF24,
 535       0
 536    },
 537    {
 538       SVGA3D_Z_D24S8_INT,
 539       SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT,
 540       0
 541    },
 542 };
 543
 544
 545 /*
 546  * Get format capabilities from the host.  It takes in consideration
 547  * deprecated/unsupported formats, and formats which are implicitely assumed to
 548  * be supported when the host does not provide an explicit capability entry.
 549  */
 550 void
 551 svga_get_format_cap(struct svga_screen *ss,
 552                     SVGA3dSurfaceFormat format,
 553                     SVGA3dSurfaceFormatCaps *caps)
 554 {
 555    const struct format_cap *entry;
 556
 557    for (entry = format_cap_table; entry < format_cap_table + Elements(format_cap_table); ++entry) {
 558       if (entry->format == format) {
 559          struct svga_winsys_screen *sws = ss->sws;
 560          SVGA3dDevCapResult result;
 561
 562          if (sws->get_cap(sws, entry->index, &result)) {
 563             /* Explicitly advertised format */
 564             caps->value = result.u;
 565          } else {
 566             /* Implicitly advertised format -- use default caps */
 567             caps->value = entry->defaultOperations;
 568          }
 569
 570          return;
 571       }
 572    }
 573
 574    /* Unsupported format */
 575    caps->value = 0;
 576 }