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      1 /*
      2  * Copyright  2015 Intel Corporation
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8  * and/or sell copies of the Software, and to permit persons to whom the
      9  * Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the next
     12  * paragraph) shall be included in all copies or substantial portions of the
     13  * Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     21  * IN THE SOFTWARE.
     22  */
     23 
     24 #include "anv_private.h"
     25 #include "vk_format_info.h"
     26 
     27 /*
     28  * gcc-4 and earlier don't allow compound literals where a constant
     29  * is required in -std=c99/gnu99 mode, so we can't use ISL_SWIZZLE()
     30  * here. -std=c89/gnu89 would allow it, but we depend on c99 features
     31  * so using -std=c89/gnu89 is not an option. Starting from gcc-5
     32  * compound literals can also be considered constant in -std=c99/gnu99
     33  * mode.
     34  */
     35 #define _ISL_SWIZZLE(r, g, b, a) { \
     36       ISL_CHANNEL_SELECT_##r, \
     37       ISL_CHANNEL_SELECT_##g, \
     38       ISL_CHANNEL_SELECT_##b, \
     39       ISL_CHANNEL_SELECT_##a, \
     40 }
     41 
     42 #define RGBA _ISL_SWIZZLE(RED, GREEN, BLUE, ALPHA)
     43 #define BGRA _ISL_SWIZZLE(BLUE, GREEN, RED, ALPHA)
     44 #define RGB1 _ISL_SWIZZLE(RED, GREEN, BLUE, ONE)
     45 
     46 #define swiz_fmt(__vk_fmt, __hw_fmt, __swizzle)     \
     47    [__vk_fmt] = { \
     48       .isl_format = __hw_fmt, \
     49       .swizzle = __swizzle, \
     50    }
     51 
     52 #define fmt(__vk_fmt, __hw_fmt) \
     53    swiz_fmt(__vk_fmt, __hw_fmt, RGBA)
     54 
     55 /* HINT: For array formats, the ISL name should match the VK name.  For
     56  * packed formats, they should have the channels in reverse order from each
     57  * other.  The reason for this is that, for packed formats, the ISL (and
     58  * bspec) names are in LSB -> MSB order while VK formats are MSB -> LSB.
     59  */
     60 static const struct anv_format anv_formats[] = {
     61    fmt(VK_FORMAT_UNDEFINED,               ISL_FORMAT_UNSUPPORTED),
     62    fmt(VK_FORMAT_R4G4_UNORM_PACK8,        ISL_FORMAT_UNSUPPORTED),
     63    fmt(VK_FORMAT_R4G4B4A4_UNORM_PACK16,   ISL_FORMAT_A4B4G4R4_UNORM),
     64    swiz_fmt(VK_FORMAT_B4G4R4A4_UNORM_PACK16,   ISL_FORMAT_A4B4G4R4_UNORM,  BGRA),
     65    fmt(VK_FORMAT_R5G6B5_UNORM_PACK16,     ISL_FORMAT_B5G6R5_UNORM),
     66    swiz_fmt(VK_FORMAT_B5G6R5_UNORM_PACK16,     ISL_FORMAT_B5G6R5_UNORM, BGRA),
     67    fmt(VK_FORMAT_R5G5B5A1_UNORM_PACK16,   ISL_FORMAT_A1B5G5R5_UNORM),
     68    fmt(VK_FORMAT_B5G5R5A1_UNORM_PACK16,   ISL_FORMAT_UNSUPPORTED),
     69    fmt(VK_FORMAT_A1R5G5B5_UNORM_PACK16,   ISL_FORMAT_B5G5R5A1_UNORM),
     70    fmt(VK_FORMAT_R8_UNORM,                ISL_FORMAT_R8_UNORM),
     71    fmt(VK_FORMAT_R8_SNORM,                ISL_FORMAT_R8_SNORM),
     72    fmt(VK_FORMAT_R8_USCALED,              ISL_FORMAT_R8_USCALED),
     73    fmt(VK_FORMAT_R8_SSCALED,              ISL_FORMAT_R8_SSCALED),
     74    fmt(VK_FORMAT_R8_UINT,                 ISL_FORMAT_R8_UINT),
     75    fmt(VK_FORMAT_R8_SINT,                 ISL_FORMAT_R8_SINT),
     76    fmt(VK_FORMAT_R8_SRGB,                 ISL_FORMAT_UNSUPPORTED),
     77    fmt(VK_FORMAT_R8G8_UNORM,              ISL_FORMAT_R8G8_UNORM),
     78    fmt(VK_FORMAT_R8G8_SNORM,              ISL_FORMAT_R8G8_SNORM),
     79    fmt(VK_FORMAT_R8G8_USCALED,            ISL_FORMAT_R8G8_USCALED),
     80    fmt(VK_FORMAT_R8G8_SSCALED,            ISL_FORMAT_R8G8_SSCALED),
     81    fmt(VK_FORMAT_R8G8_UINT,               ISL_FORMAT_R8G8_UINT),
     82    fmt(VK_FORMAT_R8G8_SINT,               ISL_FORMAT_R8G8_SINT),
     83    fmt(VK_FORMAT_R8G8_SRGB,               ISL_FORMAT_UNSUPPORTED), /* L8A8_UNORM_SRGB */
     84    fmt(VK_FORMAT_R8G8B8_UNORM,            ISL_FORMAT_R8G8B8_UNORM),
     85    fmt(VK_FORMAT_R8G8B8_SNORM,            ISL_FORMAT_R8G8B8_SNORM),
     86    fmt(VK_FORMAT_R8G8B8_USCALED,          ISL_FORMAT_R8G8B8_USCALED),
     87    fmt(VK_FORMAT_R8G8B8_SSCALED,          ISL_FORMAT_R8G8B8_SSCALED),
     88    fmt(VK_FORMAT_R8G8B8_UINT,             ISL_FORMAT_R8G8B8_UINT),
     89    fmt(VK_FORMAT_R8G8B8_SINT,             ISL_FORMAT_R8G8B8_SINT),
     90    fmt(VK_FORMAT_R8G8B8_SRGB,             ISL_FORMAT_R8G8B8_UNORM_SRGB),
     91    fmt(VK_FORMAT_R8G8B8A8_UNORM,          ISL_FORMAT_R8G8B8A8_UNORM),
     92    fmt(VK_FORMAT_R8G8B8A8_SNORM,          ISL_FORMAT_R8G8B8A8_SNORM),
     93    fmt(VK_FORMAT_R8G8B8A8_USCALED,        ISL_FORMAT_R8G8B8A8_USCALED),
     94    fmt(VK_FORMAT_R8G8B8A8_SSCALED,        ISL_FORMAT_R8G8B8A8_SSCALED),
     95    fmt(VK_FORMAT_R8G8B8A8_UINT,           ISL_FORMAT_R8G8B8A8_UINT),
     96    fmt(VK_FORMAT_R8G8B8A8_SINT,           ISL_FORMAT_R8G8B8A8_SINT),
     97    fmt(VK_FORMAT_R8G8B8A8_SRGB,           ISL_FORMAT_R8G8B8A8_UNORM_SRGB),
     98    fmt(VK_FORMAT_A8B8G8R8_UNORM_PACK32,   ISL_FORMAT_R8G8B8A8_UNORM),
     99    fmt(VK_FORMAT_A8B8G8R8_SNORM_PACK32,   ISL_FORMAT_R8G8B8A8_SNORM),
    100    fmt(VK_FORMAT_A8B8G8R8_USCALED_PACK32, ISL_FORMAT_R8G8B8A8_USCALED),
    101    fmt(VK_FORMAT_A8B8G8R8_SSCALED_PACK32, ISL_FORMAT_R8G8B8A8_SSCALED),
    102    fmt(VK_FORMAT_A8B8G8R8_UINT_PACK32,    ISL_FORMAT_R8G8B8A8_UINT),
    103    fmt(VK_FORMAT_A8B8G8R8_SINT_PACK32,    ISL_FORMAT_R8G8B8A8_SINT),
    104    fmt(VK_FORMAT_A8B8G8R8_SRGB_PACK32,    ISL_FORMAT_R8G8B8A8_UNORM_SRGB),
    105    fmt(VK_FORMAT_A2R10G10B10_UNORM_PACK32, ISL_FORMAT_B10G10R10A2_UNORM),
    106    fmt(VK_FORMAT_A2R10G10B10_SNORM_PACK32, ISL_FORMAT_B10G10R10A2_SNORM),
    107    fmt(VK_FORMAT_A2R10G10B10_USCALED_PACK32, ISL_FORMAT_B10G10R10A2_USCALED),
    108    fmt(VK_FORMAT_A2R10G10B10_SSCALED_PACK32, ISL_FORMAT_B10G10R10A2_SSCALED),
    109    fmt(VK_FORMAT_A2R10G10B10_UINT_PACK32, ISL_FORMAT_B10G10R10A2_UINT),
    110    fmt(VK_FORMAT_A2R10G10B10_SINT_PACK32, ISL_FORMAT_B10G10R10A2_SINT),
    111    fmt(VK_FORMAT_A2B10G10R10_UNORM_PACK32, ISL_FORMAT_R10G10B10A2_UNORM),
    112    fmt(VK_FORMAT_A2B10G10R10_SNORM_PACK32, ISL_FORMAT_R10G10B10A2_SNORM),
    113    fmt(VK_FORMAT_A2B10G10R10_USCALED_PACK32, ISL_FORMAT_R10G10B10A2_USCALED),
    114    fmt(VK_FORMAT_A2B10G10R10_SSCALED_PACK32, ISL_FORMAT_R10G10B10A2_SSCALED),
    115    fmt(VK_FORMAT_A2B10G10R10_UINT_PACK32, ISL_FORMAT_R10G10B10A2_UINT),
    116    fmt(VK_FORMAT_A2B10G10R10_SINT_PACK32, ISL_FORMAT_R10G10B10A2_SINT),
    117    fmt(VK_FORMAT_R16_UNORM,               ISL_FORMAT_R16_UNORM),
    118    fmt(VK_FORMAT_R16_SNORM,               ISL_FORMAT_R16_SNORM),
    119    fmt(VK_FORMAT_R16_USCALED,             ISL_FORMAT_R16_USCALED),
    120    fmt(VK_FORMAT_R16_SSCALED,             ISL_FORMAT_R16_SSCALED),
    121    fmt(VK_FORMAT_R16_UINT,                ISL_FORMAT_R16_UINT),
    122    fmt(VK_FORMAT_R16_SINT,                ISL_FORMAT_R16_SINT),
    123    fmt(VK_FORMAT_R16_SFLOAT,              ISL_FORMAT_R16_FLOAT),
    124    fmt(VK_FORMAT_R16G16_UNORM,            ISL_FORMAT_R16G16_UNORM),
    125    fmt(VK_FORMAT_R16G16_SNORM,            ISL_FORMAT_R16G16_SNORM),
    126    fmt(VK_FORMAT_R16G16_USCALED,          ISL_FORMAT_R16G16_USCALED),
    127    fmt(VK_FORMAT_R16G16_SSCALED,          ISL_FORMAT_R16G16_SSCALED),
    128    fmt(VK_FORMAT_R16G16_UINT,             ISL_FORMAT_R16G16_UINT),
    129    fmt(VK_FORMAT_R16G16_SINT,             ISL_FORMAT_R16G16_SINT),
    130    fmt(VK_FORMAT_R16G16_SFLOAT,           ISL_FORMAT_R16G16_FLOAT),
    131    fmt(VK_FORMAT_R16G16B16_UNORM,         ISL_FORMAT_R16G16B16_UNORM),
    132    fmt(VK_FORMAT_R16G16B16_SNORM,         ISL_FORMAT_R16G16B16_SNORM),
    133    fmt(VK_FORMAT_R16G16B16_USCALED,       ISL_FORMAT_R16G16B16_USCALED),
    134    fmt(VK_FORMAT_R16G16B16_SSCALED,       ISL_FORMAT_R16G16B16_SSCALED),
    135    fmt(VK_FORMAT_R16G16B16_UINT,          ISL_FORMAT_R16G16B16_UINT),
    136    fmt(VK_FORMAT_R16G16B16_SINT,          ISL_FORMAT_R16G16B16_SINT),
    137    fmt(VK_FORMAT_R16G16B16_SFLOAT,        ISL_FORMAT_R16G16B16_FLOAT),
    138    fmt(VK_FORMAT_R16G16B16A16_UNORM,      ISL_FORMAT_R16G16B16A16_UNORM),
    139    fmt(VK_FORMAT_R16G16B16A16_SNORM,      ISL_FORMAT_R16G16B16A16_SNORM),
    140    fmt(VK_FORMAT_R16G16B16A16_USCALED,    ISL_FORMAT_R16G16B16A16_USCALED),
    141    fmt(VK_FORMAT_R16G16B16A16_SSCALED,    ISL_FORMAT_R16G16B16A16_SSCALED),
    142    fmt(VK_FORMAT_R16G16B16A16_UINT,       ISL_FORMAT_R16G16B16A16_UINT),
    143    fmt(VK_FORMAT_R16G16B16A16_SINT,       ISL_FORMAT_R16G16B16A16_SINT),
    144    fmt(VK_FORMAT_R16G16B16A16_SFLOAT,     ISL_FORMAT_R16G16B16A16_FLOAT),
    145    fmt(VK_FORMAT_R32_UINT,                ISL_FORMAT_R32_UINT),
    146    fmt(VK_FORMAT_R32_SINT,                ISL_FORMAT_R32_SINT),
    147    fmt(VK_FORMAT_R32_SFLOAT,              ISL_FORMAT_R32_FLOAT),
    148    fmt(VK_FORMAT_R32G32_UINT,             ISL_FORMAT_R32G32_UINT),
    149    fmt(VK_FORMAT_R32G32_SINT,             ISL_FORMAT_R32G32_SINT),
    150    fmt(VK_FORMAT_R32G32_SFLOAT,           ISL_FORMAT_R32G32_FLOAT),
    151    fmt(VK_FORMAT_R32G32B32_UINT,          ISL_FORMAT_R32G32B32_UINT),
    152    fmt(VK_FORMAT_R32G32B32_SINT,          ISL_FORMAT_R32G32B32_SINT),
    153    fmt(VK_FORMAT_R32G32B32_SFLOAT,        ISL_FORMAT_R32G32B32_FLOAT),
    154    fmt(VK_FORMAT_R32G32B32A32_UINT,       ISL_FORMAT_R32G32B32A32_UINT),
    155    fmt(VK_FORMAT_R32G32B32A32_SINT,       ISL_FORMAT_R32G32B32A32_SINT),
    156    fmt(VK_FORMAT_R32G32B32A32_SFLOAT,     ISL_FORMAT_R32G32B32A32_FLOAT),
    157    fmt(VK_FORMAT_R64_UINT,                ISL_FORMAT_R64_PASSTHRU),
    158    fmt(VK_FORMAT_R64_SINT,                ISL_FORMAT_R64_PASSTHRU),
    159    fmt(VK_FORMAT_R64_SFLOAT,              ISL_FORMAT_R64_PASSTHRU),
    160    fmt(VK_FORMAT_R64G64_UINT,             ISL_FORMAT_R64G64_PASSTHRU),
    161    fmt(VK_FORMAT_R64G64_SINT,             ISL_FORMAT_R64G64_PASSTHRU),
    162    fmt(VK_FORMAT_R64G64_SFLOAT,           ISL_FORMAT_R64G64_PASSTHRU),
    163    fmt(VK_FORMAT_R64G64B64_UINT,          ISL_FORMAT_R64G64B64_PASSTHRU),
    164    fmt(VK_FORMAT_R64G64B64_SINT,          ISL_FORMAT_R64G64B64_PASSTHRU),
    165    fmt(VK_FORMAT_R64G64B64_SFLOAT,        ISL_FORMAT_R64G64B64_PASSTHRU),
    166    fmt(VK_FORMAT_R64G64B64A64_UINT,       ISL_FORMAT_R64G64B64A64_PASSTHRU),
    167    fmt(VK_FORMAT_R64G64B64A64_SINT,       ISL_FORMAT_R64G64B64A64_PASSTHRU),
    168    fmt(VK_FORMAT_R64G64B64A64_SFLOAT,     ISL_FORMAT_R64G64B64A64_PASSTHRU),
    169    fmt(VK_FORMAT_B10G11R11_UFLOAT_PACK32, ISL_FORMAT_R11G11B10_FLOAT),
    170    fmt(VK_FORMAT_E5B9G9R9_UFLOAT_PACK32,  ISL_FORMAT_R9G9B9E5_SHAREDEXP),
    171 
    172    fmt(VK_FORMAT_D16_UNORM,               ISL_FORMAT_R16_UNORM),
    173    fmt(VK_FORMAT_X8_D24_UNORM_PACK32,     ISL_FORMAT_R24_UNORM_X8_TYPELESS),
    174    fmt(VK_FORMAT_D32_SFLOAT,              ISL_FORMAT_R32_FLOAT),
    175    fmt(VK_FORMAT_S8_UINT,                 ISL_FORMAT_R8_UINT),
    176    fmt(VK_FORMAT_D16_UNORM_S8_UINT,       ISL_FORMAT_UNSUPPORTED),
    177    fmt(VK_FORMAT_D24_UNORM_S8_UINT,       ISL_FORMAT_R24_UNORM_X8_TYPELESS),
    178    fmt(VK_FORMAT_D32_SFLOAT_S8_UINT,      ISL_FORMAT_R32_FLOAT),
    179 
    180    fmt(VK_FORMAT_BC1_RGB_UNORM_BLOCK,     ISL_FORMAT_DXT1_RGB),
    181    fmt(VK_FORMAT_BC1_RGB_SRGB_BLOCK,      ISL_FORMAT_DXT1_RGB_SRGB),
    182    fmt(VK_FORMAT_BC1_RGBA_UNORM_BLOCK,    ISL_FORMAT_BC1_UNORM),
    183    fmt(VK_FORMAT_BC1_RGBA_SRGB_BLOCK,     ISL_FORMAT_BC1_UNORM_SRGB),
    184    fmt(VK_FORMAT_BC2_UNORM_BLOCK,         ISL_FORMAT_BC2_UNORM),
    185    fmt(VK_FORMAT_BC2_SRGB_BLOCK,          ISL_FORMAT_BC2_UNORM_SRGB),
    186    fmt(VK_FORMAT_BC3_UNORM_BLOCK,         ISL_FORMAT_BC3_UNORM),
    187    fmt(VK_FORMAT_BC3_SRGB_BLOCK,          ISL_FORMAT_BC3_UNORM_SRGB),
    188    fmt(VK_FORMAT_BC4_UNORM_BLOCK,         ISL_FORMAT_BC4_UNORM),
    189    fmt(VK_FORMAT_BC4_SNORM_BLOCK,         ISL_FORMAT_BC4_SNORM),
    190    fmt(VK_FORMAT_BC5_UNORM_BLOCK,         ISL_FORMAT_BC5_UNORM),
    191    fmt(VK_FORMAT_BC5_SNORM_BLOCK,         ISL_FORMAT_BC5_SNORM),
    192    fmt(VK_FORMAT_BC6H_UFLOAT_BLOCK,       ISL_FORMAT_BC6H_UF16),
    193    fmt(VK_FORMAT_BC6H_SFLOAT_BLOCK,       ISL_FORMAT_BC6H_SF16),
    194    fmt(VK_FORMAT_BC7_UNORM_BLOCK,         ISL_FORMAT_BC7_UNORM),
    195    fmt(VK_FORMAT_BC7_SRGB_BLOCK,          ISL_FORMAT_BC7_UNORM_SRGB),
    196    fmt(VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK, ISL_FORMAT_ETC2_RGB8),
    197    fmt(VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK,  ISL_FORMAT_ETC2_SRGB8),
    198    fmt(VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK, ISL_FORMAT_ETC2_RGB8_PTA),
    199    fmt(VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK, ISL_FORMAT_ETC2_SRGB8_PTA),
    200    fmt(VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK, ISL_FORMAT_ETC2_EAC_RGBA8),
    201    fmt(VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK, ISL_FORMAT_ETC2_EAC_SRGB8_A8),
    202    fmt(VK_FORMAT_EAC_R11_UNORM_BLOCK,     ISL_FORMAT_EAC_R11),
    203    fmt(VK_FORMAT_EAC_R11_SNORM_BLOCK,     ISL_FORMAT_EAC_SIGNED_R11),
    204    fmt(VK_FORMAT_EAC_R11G11_UNORM_BLOCK,  ISL_FORMAT_EAC_RG11),
    205    fmt(VK_FORMAT_EAC_R11G11_SNORM_BLOCK,  ISL_FORMAT_EAC_SIGNED_RG11),
    206    fmt(VK_FORMAT_ASTC_4x4_SRGB_BLOCK,     ISL_FORMAT_ASTC_LDR_2D_4X4_U8SRGB),
    207    fmt(VK_FORMAT_ASTC_5x4_SRGB_BLOCK,     ISL_FORMAT_ASTC_LDR_2D_5X4_U8SRGB),
    208    fmt(VK_FORMAT_ASTC_5x5_SRGB_BLOCK,     ISL_FORMAT_ASTC_LDR_2D_5X5_U8SRGB),
    209    fmt(VK_FORMAT_ASTC_6x5_SRGB_BLOCK,     ISL_FORMAT_ASTC_LDR_2D_6X5_U8SRGB),
    210    fmt(VK_FORMAT_ASTC_6x6_SRGB_BLOCK,     ISL_FORMAT_ASTC_LDR_2D_6X6_U8SRGB),
    211    fmt(VK_FORMAT_ASTC_8x5_SRGB_BLOCK,     ISL_FORMAT_ASTC_LDR_2D_8X5_U8SRGB),
    212    fmt(VK_FORMAT_ASTC_8x6_SRGB_BLOCK,     ISL_FORMAT_ASTC_LDR_2D_8X6_U8SRGB),
    213    fmt(VK_FORMAT_ASTC_8x8_SRGB_BLOCK,     ISL_FORMAT_ASTC_LDR_2D_8X8_U8SRGB),
    214    fmt(VK_FORMAT_ASTC_10x5_SRGB_BLOCK,    ISL_FORMAT_ASTC_LDR_2D_10X5_U8SRGB),
    215    fmt(VK_FORMAT_ASTC_10x6_SRGB_BLOCK,    ISL_FORMAT_ASTC_LDR_2D_10X6_U8SRGB),
    216    fmt(VK_FORMAT_ASTC_10x8_SRGB_BLOCK,    ISL_FORMAT_ASTC_LDR_2D_10X8_U8SRGB),
    217    fmt(VK_FORMAT_ASTC_10x10_SRGB_BLOCK,   ISL_FORMAT_ASTC_LDR_2D_10X10_U8SRGB),
    218    fmt(VK_FORMAT_ASTC_12x10_SRGB_BLOCK,   ISL_FORMAT_ASTC_LDR_2D_12X10_U8SRGB),
    219    fmt(VK_FORMAT_ASTC_12x12_SRGB_BLOCK,   ISL_FORMAT_ASTC_LDR_2D_12X12_U8SRGB),
    220    fmt(VK_FORMAT_ASTC_4x4_UNORM_BLOCK,    ISL_FORMAT_ASTC_LDR_2D_4X4_FLT16),
    221    fmt(VK_FORMAT_ASTC_5x4_UNORM_BLOCK,    ISL_FORMAT_ASTC_LDR_2D_5X4_FLT16),
    222    fmt(VK_FORMAT_ASTC_5x5_UNORM_BLOCK,    ISL_FORMAT_ASTC_LDR_2D_5X5_FLT16),
    223    fmt(VK_FORMAT_ASTC_6x5_UNORM_BLOCK,    ISL_FORMAT_ASTC_LDR_2D_6X5_FLT16),
    224    fmt(VK_FORMAT_ASTC_6x6_UNORM_BLOCK,    ISL_FORMAT_ASTC_LDR_2D_6X6_FLT16),
    225    fmt(VK_FORMAT_ASTC_8x5_UNORM_BLOCK,    ISL_FORMAT_ASTC_LDR_2D_8X5_FLT16),
    226    fmt(VK_FORMAT_ASTC_8x6_UNORM_BLOCK,    ISL_FORMAT_ASTC_LDR_2D_8X6_FLT16),
    227    fmt(VK_FORMAT_ASTC_8x8_UNORM_BLOCK,    ISL_FORMAT_ASTC_LDR_2D_8X8_FLT16),
    228    fmt(VK_FORMAT_ASTC_10x5_UNORM_BLOCK,   ISL_FORMAT_ASTC_LDR_2D_10X5_FLT16),
    229    fmt(VK_FORMAT_ASTC_10x6_UNORM_BLOCK,   ISL_FORMAT_ASTC_LDR_2D_10X6_FLT16),
    230    fmt(VK_FORMAT_ASTC_10x8_UNORM_BLOCK,   ISL_FORMAT_ASTC_LDR_2D_10X8_FLT16),
    231    fmt(VK_FORMAT_ASTC_10x10_UNORM_BLOCK,  ISL_FORMAT_ASTC_LDR_2D_10X10_FLT16),
    232    fmt(VK_FORMAT_ASTC_12x10_UNORM_BLOCK,  ISL_FORMAT_ASTC_LDR_2D_12X10_FLT16),
    233    fmt(VK_FORMAT_ASTC_12x12_UNORM_BLOCK,  ISL_FORMAT_ASTC_LDR_2D_12X12_FLT16),
    234    fmt(VK_FORMAT_B8G8R8_UNORM,            ISL_FORMAT_UNSUPPORTED),
    235    fmt(VK_FORMAT_B8G8R8_SNORM,            ISL_FORMAT_UNSUPPORTED),
    236    fmt(VK_FORMAT_B8G8R8_USCALED,          ISL_FORMAT_UNSUPPORTED),
    237    fmt(VK_FORMAT_B8G8R8_SSCALED,          ISL_FORMAT_UNSUPPORTED),
    238    fmt(VK_FORMAT_B8G8R8_UINT,             ISL_FORMAT_UNSUPPORTED),
    239    fmt(VK_FORMAT_B8G8R8_SINT,             ISL_FORMAT_UNSUPPORTED),
    240    fmt(VK_FORMAT_B8G8R8_SRGB,             ISL_FORMAT_UNSUPPORTED),
    241    fmt(VK_FORMAT_B8G8R8A8_UNORM,          ISL_FORMAT_B8G8R8A8_UNORM),
    242    fmt(VK_FORMAT_B8G8R8A8_SNORM,          ISL_FORMAT_UNSUPPORTED),
    243    fmt(VK_FORMAT_B8G8R8A8_USCALED,        ISL_FORMAT_UNSUPPORTED),
    244    fmt(VK_FORMAT_B8G8R8A8_SSCALED,        ISL_FORMAT_UNSUPPORTED),
    245    fmt(VK_FORMAT_B8G8R8A8_UINT,           ISL_FORMAT_UNSUPPORTED),
    246    fmt(VK_FORMAT_B8G8R8A8_SINT,           ISL_FORMAT_UNSUPPORTED),
    247    fmt(VK_FORMAT_B8G8R8A8_SRGB,           ISL_FORMAT_B8G8R8A8_UNORM_SRGB),
    248 };
    249 
    250 #undef fmt
    251 
    252 /**
    253  * Exactly one bit must be set in \a aspect.
    254  */
    255 struct anv_format
    256 anv_get_format(const struct gen_device_info *devinfo, VkFormat vk_format,
    257                VkImageAspectFlags aspect, VkImageTiling tiling)
    258 {
    259    struct anv_format format = anv_formats[vk_format];
    260 
    261    if (format.isl_format == ISL_FORMAT_UNSUPPORTED)
    262       return format;
    263 
    264    if (aspect == VK_IMAGE_ASPECT_STENCIL_BIT) {
    265       assert(vk_format_aspects(vk_format) & VK_IMAGE_ASPECT_STENCIL_BIT);
    266       format.isl_format = ISL_FORMAT_R8_UINT;
    267       return format;
    268    }
    269 
    270    if (aspect & VK_IMAGE_ASPECT_DEPTH_BIT) {
    271       assert(vk_format_aspects(vk_format) & VK_IMAGE_ASPECT_DEPTH_BIT);
    272       return format;
    273    }
    274 
    275    assert(aspect == VK_IMAGE_ASPECT_COLOR_BIT);
    276    assert(vk_format_aspects(vk_format) == VK_IMAGE_ASPECT_COLOR_BIT);
    277 
    278    const struct isl_format_layout *isl_layout =
    279       isl_format_get_layout(format.isl_format);
    280 
    281    if (tiling == VK_IMAGE_TILING_OPTIMAL &&
    282        !util_is_power_of_two(isl_layout->bpb)) {
    283       /* Tiled formats *must* be power-of-two because we need up upload
    284        * them with the render pipeline.  For 3-channel formats, we fix
    285        * this by switching them over to RGBX or RGBA formats under the
    286        * hood.
    287        */
    288       enum isl_format rgbx = isl_format_rgb_to_rgbx(format.isl_format);
    289       if (rgbx != ISL_FORMAT_UNSUPPORTED &&
    290           isl_format_supports_rendering(devinfo, rgbx)) {
    291          format.isl_format = rgbx;
    292       } else {
    293          format.isl_format = isl_format_rgb_to_rgba(format.isl_format);
    294          format.swizzle = ISL_SWIZZLE(RED, GREEN, BLUE, ONE);
    295       }
    296    }
    297 
    298    /* The B4G4R4A4 format isn't available prior to Broadwell so we have to fall
    299     * back to a format with a more complex swizzle.
    300     */
    301    if (vk_format == VK_FORMAT_B4G4R4A4_UNORM_PACK16 && devinfo->gen < 8) {
    302       return (struct anv_format) {
    303          .isl_format = ISL_FORMAT_B4G4R4A4_UNORM,
    304          .swizzle = ISL_SWIZZLE(GREEN, RED, ALPHA, BLUE),
    305       };
    306    }
    307 
    308    return format;
    309 }
    310 
    311 // Format capabilities
    312 
    313 static VkFormatFeatureFlags
    314 get_image_format_properties(const struct gen_device_info *devinfo,
    315                             enum isl_format base, struct anv_format format)
    316 {
    317    if (format.isl_format == ISL_FORMAT_UNSUPPORTED)
    318       return 0;
    319 
    320    VkFormatFeatureFlags flags = 0;
    321    if (isl_format_supports_sampling(devinfo, format.isl_format)) {
    322       flags |= VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT |
    323                VK_FORMAT_FEATURE_BLIT_SRC_BIT;
    324 
    325       if (isl_format_supports_filtering(devinfo, format.isl_format))
    326          flags |= VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT;
    327    }
    328 
    329    /* We can render to swizzled formats.  However, if the alpha channel is
    330     * moved, then blending won't work correctly.  The PRM tells us
    331     * straight-up not to render to such a surface.
    332     */
    333    if (isl_format_supports_rendering(devinfo, format.isl_format) &&
    334        format.swizzle.a == ISL_CHANNEL_SELECT_ALPHA) {
    335       flags |= VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT |
    336                VK_FORMAT_FEATURE_BLIT_DST_BIT;
    337 
    338       if (isl_format_supports_alpha_blending(devinfo, format.isl_format))
    339          flags |= VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BLEND_BIT;
    340    }
    341 
    342    /* Load/store is determined based on base format.  This prevents RGB
    343     * formats from showing up as load/store capable.
    344     */
    345    if (isl_is_storage_image_format(base))
    346       flags |= VK_FORMAT_FEATURE_STORAGE_IMAGE_BIT;
    347 
    348    if (base == ISL_FORMAT_R32_SINT || base == ISL_FORMAT_R32_UINT)
    349       flags |= VK_FORMAT_FEATURE_STORAGE_IMAGE_ATOMIC_BIT;
    350 
    351    return flags;
    352 }
    353 
    354 static VkFormatFeatureFlags
    355 get_buffer_format_properties(const struct gen_device_info *devinfo,
    356                              enum isl_format format)
    357 {
    358    if (format == ISL_FORMAT_UNSUPPORTED)
    359       return 0;
    360 
    361    VkFormatFeatureFlags flags = 0;
    362    if (isl_format_supports_sampling(devinfo, format) &&
    363        !isl_format_is_compressed(format))
    364       flags |= VK_FORMAT_FEATURE_UNIFORM_TEXEL_BUFFER_BIT;
    365 
    366    if (isl_format_supports_vertex_fetch(devinfo, format))
    367       flags |= VK_FORMAT_FEATURE_VERTEX_BUFFER_BIT;
    368 
    369    if (isl_is_storage_image_format(format))
    370       flags |= VK_FORMAT_FEATURE_STORAGE_TEXEL_BUFFER_BIT;
    371 
    372    if (format == ISL_FORMAT_R32_SINT || format == ISL_FORMAT_R32_UINT)
    373       flags |= VK_FORMAT_FEATURE_STORAGE_TEXEL_BUFFER_ATOMIC_BIT;
    374 
    375    return flags;
    376 }
    377 
    378 static void
    379 anv_physical_device_get_format_properties(struct anv_physical_device *physical_device,
    380                                           VkFormat format,
    381                                           VkFormatProperties *out_properties)
    382 {
    383    int gen = physical_device->info.gen * 10;
    384    if (physical_device->info.is_haswell)
    385       gen += 5;
    386 
    387    VkFormatFeatureFlags linear = 0, tiled = 0, buffer = 0;
    388    if (anv_formats[format].isl_format == ISL_FORMAT_UNSUPPORTED) {
    389       /* Nothing to do here */
    390    } else if (vk_format_is_depth_or_stencil(format)) {
    391       tiled |= VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT;
    392       if (physical_device->info.gen >= 8)
    393          tiled |= VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT;
    394 
    395       tiled |= VK_FORMAT_FEATURE_BLIT_SRC_BIT |
    396                VK_FORMAT_FEATURE_BLIT_DST_BIT;
    397    } else {
    398       struct anv_format linear_fmt, tiled_fmt;
    399       linear_fmt = anv_get_format(&physical_device->info, format,
    400                                   VK_IMAGE_ASPECT_COLOR_BIT,
    401                                   VK_IMAGE_TILING_LINEAR);
    402       tiled_fmt = anv_get_format(&physical_device->info, format,
    403                                  VK_IMAGE_ASPECT_COLOR_BIT,
    404                                  VK_IMAGE_TILING_OPTIMAL);
    405 
    406       linear = get_image_format_properties(&physical_device->info,
    407                                            linear_fmt.isl_format, linear_fmt);
    408       tiled = get_image_format_properties(&physical_device->info,
    409                                           linear_fmt.isl_format, tiled_fmt);
    410       buffer = get_buffer_format_properties(&physical_device->info,
    411                                             linear_fmt.isl_format);
    412 
    413       /* XXX: We handle 3-channel formats by switching them out for RGBX or
    414        * RGBA formats behind-the-scenes.  This works fine for textures
    415        * because the upload process will fill in the extra channel.
    416        * We could also support it for render targets, but it will take
    417        * substantially more work and we have enough RGBX formats to handle
    418        * what most clients will want.
    419        */
    420       if (linear_fmt.isl_format != ISL_FORMAT_UNSUPPORTED &&
    421           !util_is_power_of_two(isl_format_layouts[linear_fmt.isl_format].bpb) &&
    422           isl_format_rgb_to_rgbx(linear_fmt.isl_format) == ISL_FORMAT_UNSUPPORTED) {
    423          tiled &= ~VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT &
    424                   ~VK_FORMAT_FEATURE_BLIT_DST_BIT;
    425       }
    426 
    427       /* ASTC textures must be in Y-tiled memory */
    428       if (isl_format_get_layout(linear_fmt.isl_format)->txc == ISL_TXC_ASTC)
    429          linear = 0;
    430    }
    431 
    432    out_properties->linearTilingFeatures = linear;
    433    out_properties->optimalTilingFeatures = tiled;
    434    out_properties->bufferFeatures = buffer;
    435 
    436    return;
    437 }
    438 
    439 
    440 void anv_GetPhysicalDeviceFormatProperties(
    441     VkPhysicalDevice                            physicalDevice,
    442     VkFormat                                    format,
    443     VkFormatProperties*                         pFormatProperties)
    444 {
    445    ANV_FROM_HANDLE(anv_physical_device, physical_device, physicalDevice);
    446 
    447    anv_physical_device_get_format_properties(
    448                physical_device,
    449                format,
    450                pFormatProperties);
    451 }
    452 
    453 VkResult anv_GetPhysicalDeviceImageFormatProperties(
    454     VkPhysicalDevice                            physicalDevice,
    455     VkFormat                                    format,
    456     VkImageType                                 type,
    457     VkImageTiling                               tiling,
    458     VkImageUsageFlags                           usage,
    459     VkImageCreateFlags                          createFlags,
    460     VkImageFormatProperties*                    pImageFormatProperties)
    461 {
    462    ANV_FROM_HANDLE(anv_physical_device, physical_device, physicalDevice);
    463    VkFormatProperties format_props;
    464    VkFormatFeatureFlags format_feature_flags;
    465    VkExtent3D maxExtent;
    466    uint32_t maxMipLevels;
    467    uint32_t maxArraySize;
    468    VkSampleCountFlags sampleCounts = VK_SAMPLE_COUNT_1_BIT;
    469 
    470    if (anv_formats[format].isl_format == ISL_FORMAT_UNSUPPORTED)
    471       goto unsupported;
    472 
    473    anv_physical_device_get_format_properties(physical_device, format,
    474                                              &format_props);
    475 
    476    /* Extract the VkFormatFeatureFlags that are relevant for the queried
    477     * tiling.
    478     */
    479    if (tiling == VK_IMAGE_TILING_LINEAR) {
    480       format_feature_flags = format_props.linearTilingFeatures;
    481    } else if (tiling == VK_IMAGE_TILING_OPTIMAL) {
    482       format_feature_flags = format_props.optimalTilingFeatures;
    483    } else {
    484       unreachable("bad VkImageTiling");
    485    }
    486 
    487    switch (type) {
    488    default:
    489       unreachable("bad VkImageType");
    490    case VK_IMAGE_TYPE_1D:
    491       maxExtent.width = 16384;
    492       maxExtent.height = 1;
    493       maxExtent.depth = 1;
    494       maxMipLevels = 15; /* log2(maxWidth) + 1 */
    495       maxArraySize = 2048;
    496       sampleCounts = VK_SAMPLE_COUNT_1_BIT;
    497       break;
    498    case VK_IMAGE_TYPE_2D:
    499       /* FINISHME: Does this really differ for cube maps? The documentation
    500        * for RENDER_SURFACE_STATE suggests so.
    501        */
    502       maxExtent.width = 16384;
    503       maxExtent.height = 16384;
    504       maxExtent.depth = 1;
    505       maxMipLevels = 15; /* log2(maxWidth) + 1 */
    506       maxArraySize = 2048;
    507       break;
    508    case VK_IMAGE_TYPE_3D:
    509       maxExtent.width = 2048;
    510       maxExtent.height = 2048;
    511       maxExtent.depth = 2048;
    512       maxMipLevels = 12; /* log2(maxWidth) + 1 */
    513       maxArraySize = 1;
    514       break;
    515    }
    516 
    517    /* Our hardware doesn't support 1D compressed textures.
    518     *    From the SKL PRM, RENDER_SURFACE_STATE::SurfaceFormat:
    519     *    * This field cannot be a compressed (BC*, DXT*, FXT*, ETC*, EAC*) format
    520     *       if the Surface Type is SURFTYPE_1D.
    521     *    * This field cannot be ASTC format if the Surface Type is SURFTYPE_1D.
    522     */
    523    if (type == VK_IMAGE_TYPE_1D &&
    524        isl_format_is_compressed(anv_formats[format].isl_format)) {
    525        goto unsupported;
    526    }
    527 
    528    if (tiling == VK_IMAGE_TILING_OPTIMAL &&
    529        type == VK_IMAGE_TYPE_2D &&
    530        (format_feature_flags & (VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT |
    531                                 VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT)) &&
    532        !(createFlags & VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT) &&
    533        !(usage & VK_IMAGE_USAGE_STORAGE_BIT)) {
    534       sampleCounts = isl_device_get_sample_counts(&physical_device->isl_dev);
    535    }
    536 
    537    if (usage & (VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
    538                 VK_IMAGE_USAGE_TRANSFER_DST_BIT)) {
    539       /* Accept transfers on anything we can sample from or renderer to. */
    540       if (!(format_feature_flags & (VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT |
    541                                     VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT |
    542                                     VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT))) {
    543          goto unsupported;
    544       }
    545    }
    546 
    547    if (usage & VK_IMAGE_USAGE_SAMPLED_BIT) {
    548       if (!(format_feature_flags & VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT)) {
    549          goto unsupported;
    550       }
    551    }
    552 
    553    if (usage & VK_IMAGE_USAGE_STORAGE_BIT) {
    554       if (!(format_feature_flags & VK_FORMAT_FEATURE_STORAGE_IMAGE_BIT)) {
    555          goto unsupported;
    556       }
    557    }
    558 
    559    if (usage & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT) {
    560       if (!(format_feature_flags & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT)) {
    561          goto unsupported;
    562       }
    563    }
    564 
    565    if (usage & VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT) {
    566       if (!(format_feature_flags & VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT)) {
    567          goto unsupported;
    568       }
    569    }
    570 
    571    if (usage & VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT) {
    572       /* Nothing to check. */
    573    }
    574 
    575    if (usage & VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT) {
    576       /* Ignore this flag because it was removed from the
    577        * provisional_I_20150910 header.
    578        */
    579    }
    580 
    581    *pImageFormatProperties = (VkImageFormatProperties) {
    582       .maxExtent = maxExtent,
    583       .maxMipLevels = maxMipLevels,
    584       .maxArrayLayers = maxArraySize,
    585       .sampleCounts = sampleCounts,
    586 
    587       /* FINISHME: Accurately calculate
    588        * VkImageFormatProperties::maxResourceSize.
    589        */
    590       .maxResourceSize = UINT32_MAX,
    591    };
    592 
    593    return VK_SUCCESS;
    594 
    595 unsupported:
    596    *pImageFormatProperties = (VkImageFormatProperties) {
    597       .maxExtent = { 0, 0, 0 },
    598       .maxMipLevels = 0,
    599       .maxArrayLayers = 0,
    600       .sampleCounts = 0,
    601       .maxResourceSize = 0,
    602    };
    603 
    604    return VK_ERROR_FORMAT_NOT_SUPPORTED;
    605 }
    606 
    607 void anv_GetPhysicalDeviceSparseImageFormatProperties(
    608     VkPhysicalDevice                            physicalDevice,
    609     VkFormat                                    format,
    610     VkImageType                                 type,
    611     uint32_t                                    samples,
    612     VkImageUsageFlags                           usage,
    613     VkImageTiling                               tiling,
    614     uint32_t*                                   pNumProperties,
    615     VkSparseImageFormatProperties*              pProperties)
    616 {
    617    /* Sparse images are not yet supported. */
    618    *pNumProperties = 0;
    619 }
    620