src/gallium/drivers/ilo/core/ilo_state_surface_format.c

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 2012-2013 LunarG, Inc.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Chia-I Wu <olv@lunarg.com>
  26  */
  27
  28 #include "genhw/genhw.h"
  29 #include "ilo_state_surface.h"
  30
  31 static bool
  32 surface_valid_sampler_format(const struct ilo_dev *dev,
  33                              enum ilo_state_surface_access access,
  34                              enum gen_surface_format format)
  35 {
  36    /*
  37     * This table is based on:
  38     *
  39     *  - the Sandy Bridge PRM, volume 4 part 1, page 88-97
  40     *  - the Ivy Bridge PRM, volume 4 part 1, page 84-87
  41     */
  42    static const struct sampler_cap {
  43       int sampling;
  44       int filtering;
  45       int shadow_map;
  46       int chroma_key;
  47    } caps[] = {
  48 #define CAP(sampling, filtering, shadow_map, chroma_key) \
  49       { ILO_GEN(sampling), ILO_GEN(filtering), ILO_GEN(shadow_map), ILO_GEN(chroma_key) }
  50       [GEN6_FORMAT_R32G32B32A32_FLOAT]       = CAP(  1,   5,   0,   0),
  51       [GEN6_FORMAT_R32G32B32A32_SINT]        = CAP(  1,   0,   0,   0),
  52       [GEN6_FORMAT_R32G32B32A32_UINT]        = CAP(  1,   0,   0,   0),
  53       [GEN6_FORMAT_R32G32B32X32_FLOAT]       = CAP(  1,   5,   0,   0),
  54       [GEN6_FORMAT_R32G32B32_FLOAT]          = CAP(  1,   5,   0,   0),
  55       [GEN6_FORMAT_R32G32B32_SINT]           = CAP(  1,   0,   0,   0),
  56       [GEN6_FORMAT_R32G32B32_UINT]           = CAP(  1,   0,   0,   0),
  57       [GEN6_FORMAT_R16G16B16A16_UNORM]       = CAP(  1,   1,   0,   0),
  58       [GEN6_FORMAT_R16G16B16A16_SNORM]       = CAP(  1,   1,   0,   0),
  59       [GEN6_FORMAT_R16G16B16A16_SINT]        = CAP(  1,   0,   0,   0),
  60       [GEN6_FORMAT_R16G16B16A16_UINT]        = CAP(  1,   0,   0,   0),
  61       [GEN6_FORMAT_R16G16B16A16_FLOAT]       = CAP(  1,   1,   0,   0),
  62       [GEN6_FORMAT_R32G32_FLOAT]             = CAP(  1,   5,   0,   0),
  63       [GEN6_FORMAT_R32G32_SINT]              = CAP(  1,   0,   0,   0),
  64       [GEN6_FORMAT_R32G32_UINT]              = CAP(  1,   0,   0,   0),
  65       [GEN6_FORMAT_R32_FLOAT_X8X24_TYPELESS] = CAP(  1,   5,   1,   0),
  66       [GEN6_FORMAT_X32_TYPELESS_G8X24_UINT]  = CAP(  1,   0,   0,   0),
  67       [GEN6_FORMAT_L32A32_FLOAT]             = CAP(  1,   5,   0,   0),
  68       [GEN6_FORMAT_R16G16B16X16_UNORM]       = CAP(  1,   1,   0,   0),
  69       [GEN6_FORMAT_R16G16B16X16_FLOAT]       = CAP(  1,   1,   0,   0),
  70       [GEN6_FORMAT_A32X32_FLOAT]             = CAP(  1,   5,   0,   0),
  71       [GEN6_FORMAT_L32X32_FLOAT]             = CAP(  1,   5,   0,   0),
  72       [GEN6_FORMAT_I32X32_FLOAT]             = CAP(  1,   5,   0,   0),
  73       [GEN6_FORMAT_B8G8R8A8_UNORM]           = CAP(  1,   1,   0,   1),
  74       [GEN6_FORMAT_B8G8R8A8_UNORM_SRGB]      = CAP(  1,   1,   0,   0),
  75       [GEN6_FORMAT_R10G10B10A2_UNORM]        = CAP(  1,   1,   0,   0),
  76       [GEN6_FORMAT_R10G10B10A2_UNORM_SRGB]   = CAP(  1,   1,   0,   0),
  77       [GEN6_FORMAT_R10G10B10A2_UINT]         = CAP(  1,   0,   0,   0),
  78       [GEN6_FORMAT_R10G10B10_SNORM_A2_UNORM] = CAP(  1,   1,   0,   0),
  79       [GEN6_FORMAT_R8G8B8A8_UNORM]           = CAP(  1,   1,   0,   0),
  80       [GEN6_FORMAT_R8G8B8A8_UNORM_SRGB]      = CAP(  1,   1,   0,   0),
  81       [GEN6_FORMAT_R8G8B8A8_SNORM]           = CAP(  1,   1,   0,   0),
  82       [GEN6_FORMAT_R8G8B8A8_SINT]            = CAP(  1,   0,   0,   0),
  83       [GEN6_FORMAT_R8G8B8A8_UINT]            = CAP(  1,   0,   0,   0),
  84       [GEN6_FORMAT_R16G16_UNORM]             = CAP(  1,   1,   0,   0),
  85       [GEN6_FORMAT_R16G16_SNORM]             = CAP(  1,   1,   0,   0),
  86       [GEN6_FORMAT_R16G16_SINT]              = CAP(  1,   0,   0,   0),
  87       [GEN6_FORMAT_R16G16_UINT]              = CAP(  1,   0,   0,   0),
  88       [GEN6_FORMAT_R16G16_FLOAT]             = CAP(  1,   1,   0,   0),
  89       [GEN6_FORMAT_B10G10R10A2_UNORM]        = CAP(  1,   1,   0,   0),
  90       [GEN6_FORMAT_B10G10R10A2_UNORM_SRGB]   = CAP(  1,   1,   0,   0),
  91       [GEN6_FORMAT_R11G11B10_FLOAT]          = CAP(  1,   1,   0,   0),
  92       [GEN6_FORMAT_R32_SINT]                 = CAP(  1,   0,   0,   0),
  93       [GEN6_FORMAT_R32_UINT]                 = CAP(  1,   0,   0,   0),
  94       [GEN6_FORMAT_R32_FLOAT]                = CAP(  1,   5,   1,   0),
  95       [GEN6_FORMAT_R24_UNORM_X8_TYPELESS]    = CAP(  1,   5,   1,   0),
  96       [GEN6_FORMAT_X24_TYPELESS_G8_UINT]     = CAP(  1,   0,   0,   0),
  97       [GEN6_FORMAT_L16A16_UNORM]             = CAP(  1,   1,   0,   0),
  98       [GEN6_FORMAT_I24X8_UNORM]              = CAP(  1,   5,   1,   0),
  99       [GEN6_FORMAT_L24X8_UNORM]              = CAP(  1,   5,   1,   0),
 100       [GEN6_FORMAT_A24X8_UNORM]              = CAP(  1,   5,   1,   0),
 101       [GEN6_FORMAT_I32_FLOAT]                = CAP(  1,   5,   1,   0),
 102       [GEN6_FORMAT_L32_FLOAT]                = CAP(  1,   5,   1,   0),
 103       [GEN6_FORMAT_A32_FLOAT]                = CAP(  1,   5,   1,   0),
 104       [GEN6_FORMAT_B8G8R8X8_UNORM]           = CAP(  1,   1,   0,   1),
 105       [GEN6_FORMAT_B8G8R8X8_UNORM_SRGB]      = CAP(  1,   1,   0,   0),
 106       [GEN6_FORMAT_R8G8B8X8_UNORM]           = CAP(  1,   1,   0,   0),
 107       [GEN6_FORMAT_R8G8B8X8_UNORM_SRGB]      = CAP(  1,   1,   0,   0),
 108       [GEN6_FORMAT_R9G9B9E5_SHAREDEXP]       = CAP(  1,   1,   0,   0),
 109       [GEN6_FORMAT_B10G10R10X2_UNORM]        = CAP(  1,   1,   0,   0),
 110       [GEN6_FORMAT_L16A16_FLOAT]             = CAP(  1,   1,   0,   0),
 111       [GEN6_FORMAT_B5G6R5_UNORM]             = CAP(  1,   1,   0,   1),
 112       [GEN6_FORMAT_B5G6R5_UNORM_SRGB]        = CAP(  1,   1,   0,   0),
 113       [GEN6_FORMAT_B5G5R5A1_UNORM]           = CAP(  1,   1,   0,   1),
 114       [GEN6_FORMAT_B5G5R5A1_UNORM_SRGB]      = CAP(  1,   1,   0,   0),
 115       [GEN6_FORMAT_B4G4R4A4_UNORM]           = CAP(  1,   1,   0,   1),
 116       [GEN6_FORMAT_B4G4R4A4_UNORM_SRGB]      = CAP(  1,   1,   0,   0),
 117       [GEN6_FORMAT_R8G8_UNORM]               = CAP(  1,   1,   0,   0),
 118       [GEN6_FORMAT_R8G8_SNORM]               = CAP(  1,   1,   0,   1),
 119       [GEN6_FORMAT_R8G8_SINT]                = CAP(  1,   0,   0,   0),
 120       [GEN6_FORMAT_R8G8_UINT]                = CAP(  1,   0,   0,   0),
 121       [GEN6_FORMAT_R16_UNORM]                = CAP(  1,   1,   1,   0),
 122       [GEN6_FORMAT_R16_SNORM]                = CAP(  1,   1,   0,   0),
 123       [GEN6_FORMAT_R16_SINT]                 = CAP(  1,   0,   0,   0),
 124       [GEN6_FORMAT_R16_UINT]                 = CAP(  1,   0,   0,   0),
 125       [GEN6_FORMAT_R16_FLOAT]                = CAP(  1,   1,   0,   0),
 126       [GEN6_FORMAT_A8P8_UNORM_PALETTE0]      = CAP(  5,   5,   0,   0),
 127       [GEN6_FORMAT_A8P8_UNORM_PALETTE1]      = CAP(  5,   5,   0,   0),
 128       [GEN6_FORMAT_I16_UNORM]                = CAP(  1,   1,   1,   0),
 129       [GEN6_FORMAT_L16_UNORM]                = CAP(  1,   1,   1,   0),
 130       [GEN6_FORMAT_A16_UNORM]                = CAP(  1,   1,   1,   0),
 131       [GEN6_FORMAT_L8A8_UNORM]               = CAP(  1,   1,   0,   1),
 132       [GEN6_FORMAT_I16_FLOAT]                = CAP(  1,   1,   1,   0),
 133       [GEN6_FORMAT_L16_FLOAT]                = CAP(  1,   1,   1,   0),
 134       [GEN6_FORMAT_A16_FLOAT]                = CAP(  1,   1,   1,   0),
 135       [GEN6_FORMAT_L8A8_UNORM_SRGB]          = CAP(4.5, 4.5,   0,   0),
 136       [GEN6_FORMAT_R5G5_SNORM_B6_UNORM]      = CAP(  1,   1,   0,   1),
 137       [GEN6_FORMAT_P8A8_UNORM_PALETTE0]      = CAP(  5,   5,   0,   0),
 138       [GEN6_FORMAT_P8A8_UNORM_PALETTE1]      = CAP(  5,   5,   0,   0),
 139       [GEN6_FORMAT_R8_UNORM]                 = CAP(  1,   1,   0, 4.5),
 140       [GEN6_FORMAT_R8_SNORM]                 = CAP(  1,   1,   0,   0),
 141       [GEN6_FORMAT_R8_SINT]                  = CAP(  1,   0,   0,   0),
 142       [GEN6_FORMAT_R8_UINT]                  = CAP(  1,   0,   0,   0),
 143       [GEN6_FORMAT_A8_UNORM]                 = CAP(  1,   1,   0,   1),
 144       [GEN6_FORMAT_I8_UNORM]                 = CAP(  1,   1,   0,   0),
 145       [GEN6_FORMAT_L8_UNORM]                 = CAP(  1,   1,   0,   1),
 146       [GEN6_FORMAT_P4A4_UNORM_PALETTE0]      = CAP(  1,   1,   0,   0),
 147       [GEN6_FORMAT_A4P4_UNORM_PALETTE0]      = CAP(  1,   1,   0,   0),
 148       [GEN6_FORMAT_P8_UNORM_PALETTE0]        = CAP(4.5, 4.5,   0,   0),
 149       [GEN6_FORMAT_L8_UNORM_SRGB]            = CAP(4.5, 4.5,   0,   0),
 150       [GEN6_FORMAT_P8_UNORM_PALETTE1]        = CAP(4.5, 4.5,   0,   0),
 151       [GEN6_FORMAT_P4A4_UNORM_PALETTE1]      = CAP(4.5, 4.5,   0,   0),
 152       [GEN6_FORMAT_A4P4_UNORM_PALETTE1]      = CAP(4.5, 4.5,   0,   0),
 153       [GEN6_FORMAT_DXT1_RGB_SRGB]            = CAP(4.5, 4.5,   0,   0),
 154       [GEN6_FORMAT_R1_UNORM]                 = CAP(  1,   1,   0,   0),
 155       [GEN6_FORMAT_YCRCB_NORMAL]             = CAP(  1,   1,   0,   1),
 156       [GEN6_FORMAT_YCRCB_SWAPUVY]            = CAP(  1,   1,   0,   1),
 157       [GEN6_FORMAT_P2_UNORM_PALETTE0]        = CAP(4.5, 4.5,   0,   0),
 158       [GEN6_FORMAT_P2_UNORM_PALETTE1]        = CAP(4.5, 4.5,   0,   0),
 159       [GEN6_FORMAT_BC1_UNORM]                = CAP(  1,   1,   0,   1),
 160       [GEN6_FORMAT_BC2_UNORM]                = CAP(  1,   1,   0,   1),
 161       [GEN6_FORMAT_BC3_UNORM]                = CAP(  1,   1,   0,   1),
 162       [GEN6_FORMAT_BC4_UNORM]                = CAP(  1,   1,   0,   0),
 163       [GEN6_FORMAT_BC5_UNORM]                = CAP(  1,   1,   0,   0),
 164       [GEN6_FORMAT_BC1_UNORM_SRGB]           = CAP(  1,   1,   0,   0),
 165       [GEN6_FORMAT_BC2_UNORM_SRGB]           = CAP(  1,   1,   0,   0),
 166       [GEN6_FORMAT_BC3_UNORM_SRGB]           = CAP(  1,   1,   0,   0),
 167       [GEN6_FORMAT_MONO8]                    = CAP(  1,   0,   0,   0),
 168       [GEN6_FORMAT_YCRCB_SWAPUV]             = CAP(  1,   1,   0,   0),
 169       [GEN6_FORMAT_YCRCB_SWAPY]              = CAP(  1,   1,   0,   0),
 170       [GEN6_FORMAT_DXT1_RGB]                 = CAP(  1,   1,   0,   0),
 171       [GEN6_FORMAT_FXT1]                     = CAP(  1,   1,   0,   0),
 172       [GEN6_FORMAT_BC4_SNORM]                = CAP(  1,   1,   0,   0),
 173       [GEN6_FORMAT_BC5_SNORM]                = CAP(  1,   1,   0,   0),
 174       [GEN6_FORMAT_R16G16B16_FLOAT]          = CAP(  5,   5,   0,   0),
 175       [GEN6_FORMAT_BC6H_SF16]                = CAP(  7,   7,   0,   0),
 176       [GEN6_FORMAT_BC7_UNORM]                = CAP(  7,   7,   0,   0),
 177       [GEN6_FORMAT_BC7_UNORM_SRGB]           = CAP(  7,   7,   0,   0),
 178       [GEN6_FORMAT_BC6H_UF16]                = CAP(  7,   7,   0,   0),
 179 #undef CAP
 180    };
 181
 182    ILO_DEV_ASSERT(dev, 6, 8);
 183
 184    return (format < ARRAY_SIZE(caps) && caps[format].sampling &&
 185            ilo_dev_gen(dev) >= caps[format].sampling);
 186 }
 187
 188 static bool
 189 surface_valid_dp_format(const struct ilo_dev *dev,
 190                         enum ilo_state_surface_access access,
 191                         enum gen_surface_format format)
 192 {
 193    /*
 194     * This table is based on:
 195     *
 196     *  - the Sandy Bridge PRM, volume 4 part 1, page 88-97
 197     *  - the Ivy Bridge PRM, volume 4 part 1, page 172, 252-253, and 277-278
 198     *  - the Haswell PRM, volume 7, page 262-264
 199     */
 200    static const struct dp_cap {
 201       int rt_write;
 202       int rt_write_blending;
 203       int typed_write;
 204       int media_color_processing;
 205    } caps[] = {
 206 #define CAP(rt_write, rt_write_blending, typed_write, media_color_processing) \
 207       { ILO_GEN(rt_write), ILO_GEN(rt_write_blending), ILO_GEN(typed_write), ILO_GEN(media_color_processing) }
 208       [GEN6_FORMAT_R32G32B32A32_FLOAT]       = CAP(  1,   1,   7,   0),
 209       [GEN6_FORMAT_R32G32B32A32_SINT]        = CAP(  1,   0,   7,   0),
 210       [GEN6_FORMAT_R32G32B32A32_UINT]        = CAP(  1,   0,   7,   0),
 211       [GEN6_FORMAT_R16G16B16A16_UNORM]       = CAP(  1, 4.5,   7,   6),
 212       [GEN6_FORMAT_R16G16B16A16_SNORM]       = CAP(  1,   6,   7,   0),
 213       [GEN6_FORMAT_R16G16B16A16_SINT]        = CAP(  1,   0,   7,   0),
 214       [GEN6_FORMAT_R16G16B16A16_UINT]        = CAP(  1,   0,   7,   0),
 215       [GEN6_FORMAT_R16G16B16A16_FLOAT]       = CAP(  1,   1,   7,   0),
 216       [GEN6_FORMAT_R32G32_FLOAT]             = CAP(  1,   1,   7,   0),
 217       [GEN6_FORMAT_R32G32_SINT]              = CAP(  1,   0,   7,   0),
 218       [GEN6_FORMAT_R32G32_UINT]              = CAP(  1,   0,   7,   0),
 219       [GEN6_FORMAT_B8G8R8A8_UNORM]           = CAP(  1,   1,   7,   6),
 220       [GEN6_FORMAT_B8G8R8A8_UNORM_SRGB]      = CAP(  1,   1,   0,   0),
 221       [GEN6_FORMAT_R10G10B10A2_UNORM]        = CAP(  1,   1,   7,   6),
 222       [GEN6_FORMAT_R10G10B10A2_UNORM_SRGB]   = CAP(  0,   0,   0,   6),
 223       [GEN6_FORMAT_R10G10B10A2_UINT]         = CAP(  1,   0,   7,   0),
 224       [GEN6_FORMAT_R8G8B8A8_UNORM]           = CAP(  1,   1,   7,   6),
 225       [GEN6_FORMAT_R8G8B8A8_UNORM_SRGB]      = CAP(  1,   1,   0,   6),
 226       [GEN6_FORMAT_R8G8B8A8_SNORM]           = CAP(  1,   6,   7,   0),
 227       [GEN6_FORMAT_R8G8B8A8_SINT]            = CAP(  1,   0,   7,   0),
 228       [GEN6_FORMAT_R8G8B8A8_UINT]            = CAP(  1,   0,   7,   0),
 229       [GEN6_FORMAT_R16G16_UNORM]             = CAP(  1, 4.5,   7,   0),
 230       [GEN6_FORMAT_R16G16_SNORM]             = CAP(  1,   6,   7,   0),
 231       [GEN6_FORMAT_R16G16_SINT]              = CAP(  1,   0,   7,   0),
 232       [GEN6_FORMAT_R16G16_UINT]              = CAP(  1,   0,   7,   0),
 233       [GEN6_FORMAT_R16G16_FLOAT]             = CAP(  1,   1,   7,   0),
 234       [GEN6_FORMAT_B10G10R10A2_UNORM]        = CAP(  1,   1,   7,   6),
 235       [GEN6_FORMAT_B10G10R10A2_UNORM_SRGB]   = CAP(  1,   1,   0,   6),
 236       [GEN6_FORMAT_R11G11B10_FLOAT]          = CAP(  1,   1,   7,   0),
 237       [GEN6_FORMAT_R32_SINT]                 = CAP(  1,   0,   7,   0),
 238       [GEN6_FORMAT_R32_UINT]                 = CAP(  1,   0,   7,   0),
 239       [GEN6_FORMAT_R32_FLOAT]                = CAP(  1,   1,   7,   0),
 240       [GEN6_FORMAT_B8G8R8X8_UNORM]           = CAP(  0,   0,   0,   6),
 241       [GEN6_FORMAT_B5G6R5_UNORM]             = CAP(  1,   1,   7,   0),
 242       [GEN6_FORMAT_B5G6R5_UNORM_SRGB]        = CAP(  1,   1,   0,   0),
 243       [GEN6_FORMAT_B5G5R5A1_UNORM]           = CAP(  1,   1,   7,   0),
 244       [GEN6_FORMAT_B5G5R5A1_UNORM_SRGB]      = CAP(  1,   1,   0,   0),
 245       [GEN6_FORMAT_B4G4R4A4_UNORM]           = CAP(  1,   1,   7,   0),
 246       [GEN6_FORMAT_B4G4R4A4_UNORM_SRGB]      = CAP(  1,   1,   0,   0),
 247       [GEN6_FORMAT_R8G8_UNORM]               = CAP(  1,   1,   7,   0),
 248       [GEN6_FORMAT_R8G8_SNORM]               = CAP(  1,   6,   7,   0),
 249       [GEN6_FORMAT_R8G8_SINT]                = CAP(  1,   0,   7,   0),
 250       [GEN6_FORMAT_R8G8_UINT]                = CAP(  1,   0,   7,   0),
 251       [GEN6_FORMAT_R16_UNORM]                = CAP(  1, 4.5,   7,   7),
 252       [GEN6_FORMAT_R16_SNORM]                = CAP(  1,   6,   7,   0),
 253       [GEN6_FORMAT_R16_SINT]                 = CAP(  1,   0,   7,   0),
 254       [GEN6_FORMAT_R16_UINT]                 = CAP(  1,   0,   7,   0),
 255       [GEN6_FORMAT_R16_FLOAT]                = CAP(  1,   1,   7,   0),
 256       [GEN6_FORMAT_B5G5R5X1_UNORM]           = CAP(  1,   1,   7,   0),
 257       [GEN6_FORMAT_B5G5R5X1_UNORM_SRGB]      = CAP(  1,   1,   0,   0),
 258       [GEN6_FORMAT_R8_UNORM]                 = CAP(  1,   1,   7,   0),
 259       [GEN6_FORMAT_R8_SNORM]                 = CAP(  1,   6,   7,   0),
 260       [GEN6_FORMAT_R8_SINT]                  = CAP(  1,   0,   7,   0),
 261       [GEN6_FORMAT_R8_UINT]                  = CAP(  1,   0,   7,   0),
 262       [GEN6_FORMAT_A8_UNORM]                 = CAP(  1,   1,   7,   0),
 263       [GEN6_FORMAT_YCRCB_NORMAL]             = CAP(  1,   0,   0,   6),
 264       [GEN6_FORMAT_YCRCB_SWAPUVY]            = CAP(  1,   0,   0,   6),
 265       [GEN6_FORMAT_YCRCB_SWAPUV]             = CAP(  1,   0,   0,   6),
 266       [GEN6_FORMAT_YCRCB_SWAPY]              = CAP(  1,   0,   0,   6),
 267 #undef CAP
 268    };
 269
 270    ILO_DEV_ASSERT(dev, 6, 8);
 271
 272    if (format >= ARRAY_SIZE(caps))
 273       return false;
 274
 275    switch (access) {
 276    case ILO_STATE_SURFACE_ACCESS_DP_RENDER:
 277       return (caps[format].rt_write &&
 278               ilo_dev_gen(dev) >= caps[format].rt_write);
 279    case ILO_STATE_SURFACE_ACCESS_DP_TYPED:
 280       return (caps[format].typed_write &&
 281               ilo_dev_gen(dev) >= caps[format].typed_write);
 282    case ILO_STATE_SURFACE_ACCESS_DP_UNTYPED:
 283       return (format == GEN6_FORMAT_RAW);
 284    case ILO_STATE_SURFACE_ACCESS_DP_DATA:
 285       /* ignored, but can it be raw? */
 286       assert(format != GEN6_FORMAT_RAW);
 287       return true;
 288    default:
 289       return false;
 290    }
 291 }
 292
 293 static bool
 294 surface_valid_svb_format(const struct ilo_dev *dev,
 295                          enum gen_surface_format format)
 296 {
 297    ILO_DEV_ASSERT(dev, 6, 8);
 298
 299    /*
 300     * This table is based on:
 301     *
 302     *  - the Sandy Bridge PRM, volume 4 part 1, page 88-97
 303     *  - the Ivy Bridge PRM, volume 2 part 1, page 195
 304     *  - the Haswell PRM, volume 7, page 535
 305     */
 306    switch (format) {
 307    case GEN6_FORMAT_R32G32B32A32_FLOAT:
 308    case GEN6_FORMAT_R32G32B32A32_SINT:
 309    case GEN6_FORMAT_R32G32B32A32_UINT:
 310    case GEN6_FORMAT_R32G32B32_FLOAT:
 311    case GEN6_FORMAT_R32G32B32_SINT:
 312    case GEN6_FORMAT_R32G32B32_UINT:
 313    case GEN6_FORMAT_R32G32_FLOAT:
 314    case GEN6_FORMAT_R32G32_SINT:
 315    case GEN6_FORMAT_R32G32_UINT:
 316    case GEN6_FORMAT_R32_SINT:
 317    case GEN6_FORMAT_R32_UINT:
 318    case GEN6_FORMAT_R32_FLOAT:
 319       return true;
 320    default:
 321       return false;
 322    }
 323 }
 324
 325 bool
 326 ilo_state_surface_valid_format(const struct ilo_dev *dev,
 327                                enum ilo_state_surface_access access,
 328                                enum gen_surface_format format)
 329 {
 330    bool valid;
 331
 332    switch (access) {
 333    case ILO_STATE_SURFACE_ACCESS_SAMPLER:
 334       valid = surface_valid_sampler_format(dev, access, format);
 335       break;
 336    case ILO_STATE_SURFACE_ACCESS_DP_RENDER:
 337    case ILO_STATE_SURFACE_ACCESS_DP_TYPED:
 338    case ILO_STATE_SURFACE_ACCESS_DP_UNTYPED:
 339    case ILO_STATE_SURFACE_ACCESS_DP_DATA:
 340       valid = surface_valid_dp_format(dev, access, format);
 341       break;
 342    case ILO_STATE_SURFACE_ACCESS_DP_SVB:
 343       valid = surface_valid_svb_format(dev, format);
 344       break;
 345    default:
 346       valid = false;
 347       break;
 348    }
 349
 350    return valid;
 351 }