src/mesa/drivers/dri/i965/brw_surface_formats.c

   1 /*
   2  * Copyright © 2011 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 #include "main/context.h"
  24 #include "main/mtypes.h"
  25
  26 #include "brw_context.h"
  27 #include "brw_state.h"
  28 #include "brw_defines.h"
  29 #include "brw_wm.h"
  30
  31 struct surface_format_info {
  32    bool exists;
  33    int sampling;
  34    int filtering;
  35    int shadow_compare;
  36    int chroma_key;
  37    int render_target;
  38    int alpha_blend;
  39    int input_vb;
  40    int streamed_output_vb;
  41    int color_processing;
  42 };
  43
  44 /* This macro allows us to write the table almost as it appears in the PRM,
  45  * while restructuring it to turn it into the C code we want.
  46  */
  47 #define SF(sampl, filt, shad, ck, rt, ab, vb, so, color, sf) \
  48    [sf] = { true, sampl, filt, shad, ck, rt, ab, vb, so, color },
  49
  50 #define Y 0
  51 #define x 999
  52 /**
  53  * This is the table of support for surface (texture, renderbuffer, and vertex
  54  * buffer, but not depthbuffer) formats across the various hardware generations.
  55  *
  56  * The table is formatted to match the documentation, except that the docs have
  57  * this ridiculous mapping of Y[*+~^#&] for "supported on DevWhatever".  To put
  58  * it in our table, here's the mapping:
  59  *
  60  * Y*: 45
  61  * Y+: 45 (g45/gm45)
  62  * Y~: 50 (gen5)
  63  * Y^: 60 (gen6)
  64  * Y#: 70 (gen7)
  65  *
  66  * The abbreviations in the header below are:
  67  * smpl  - Sampling Engine
  68  * filt  - Sampling Engine Filtering
  69  * shad  - Sampling Engine Shadow Map
  70  * CK    - Sampling Engine Chroma Key
  71  * RT    - Render Target
  72  * AB    - Alpha Blend Render Target
  73  * VB    - Input Vertex Buffer
  74  * SO    - Steamed Output Vertex Buffers (transform feedback)
  75  * color - Color Processing
  76  *
  77  * See page 88 of the Sandybridge PRM VOL4_Part1 PDF.
  78  *
  79  * As of Ivybridge, the columns are no longer in that table and the
  80  * information can be found spread across:
  81  *
  82  * - VOL2_Part1 section 2.5.11 Format Conversion (vertex fetch).
  83  * - VOL4_Part1 section 2.12.2.1.2 Sampler Output Channel Mapping.
  84  * - VOL4_Part1 section 3.9.11 Render Target Write.
  85  */
  86 const struct surface_format_info surface_formats[] = {
  87 /* smpl filt shad CK  RT  AB  VB  SO  color */
  88    SF( Y, 50,  x,  x,  Y,  Y,  Y,  Y,  x, BRW_SURFACEFORMAT_R32G32B32A32_FLOAT)
  89    SF( Y,  x,  x,  x,  Y,  x,  Y,  Y,  x, BRW_SURFACEFORMAT_R32G32B32A32_SINT)
  90    SF( Y,  x,  x,  x,  Y,  x,  Y,  Y,  x, BRW_SURFACEFORMAT_R32G32B32A32_UINT)
  91    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R32G32B32A32_UNORM)
  92    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R32G32B32A32_SNORM)
  93    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R64G64_FLOAT)
  94    SF( Y, 50,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R32G32B32X32_FLOAT)
  95    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R32G32B32A32_SSCALED)
  96    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R32G32B32A32_USCALED)
  97    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R32G32B32A32_SFIXED)
  98    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R64G64_PASSTHRU)
  99    SF( Y, 50,  x,  x,  x,  x,  Y,  Y,  x, BRW_SURFACEFORMAT_R32G32B32_FLOAT)
 100    SF( Y,  x,  x,  x,  x,  x,  Y,  Y,  x, BRW_SURFACEFORMAT_R32G32B32_SINT)
 101    SF( Y,  x,  x,  x,  x,  x,  Y,  Y,  x, BRW_SURFACEFORMAT_R32G32B32_UINT)
 102    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R32G32B32_UNORM)
 103    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R32G32B32_SNORM)
 104    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R32G32B32_SSCALED)
 105    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R32G32B32_USCALED)
 106    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R32G32B32_SFIXED)
 107    SF( Y,  Y,  x,  x,  Y, 45,  Y,  x, 60, BRW_SURFACEFORMAT_R16G16B16A16_UNORM)
 108    SF( Y,  Y,  x,  x,  Y, 60,  Y,  x,  x, BRW_SURFACEFORMAT_R16G16B16A16_SNORM)
 109    SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R16G16B16A16_SINT)
 110    SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R16G16B16A16_UINT)
 111    SF( Y,  Y,  x,  x,  Y,  Y,  Y,  x,  x, BRW_SURFACEFORMAT_R16G16B16A16_FLOAT)
 112    SF( Y, 50,  x,  x,  Y,  Y,  Y,  Y,  x, BRW_SURFACEFORMAT_R32G32_FLOAT)
 113    SF( Y, 70,  x,  x,  Y,  Y,  Y,  Y,  x, BRW_SURFACEFORMAT_R32G32_FLOAT_LD)
 114    SF( Y,  x,  x,  x,  Y,  x,  Y,  Y,  x, BRW_SURFACEFORMAT_R32G32_SINT)
 115    SF( Y,  x,  x,  x,  Y,  x,  Y,  Y,  x, BRW_SURFACEFORMAT_R32G32_UINT)
 116    SF( Y, 50,  Y,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R32_FLOAT_X8X24_TYPELESS)
 117    SF( Y,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_X32_TYPELESS_G8X24_UINT)
 118    SF( Y, 50,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_L32A32_FLOAT)
 119    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R32G32_UNORM)
 120    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R32G32_SNORM)
 121    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R64_FLOAT)
 122    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R16G16B16X16_UNORM)
 123    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R16G16B16X16_FLOAT)
 124    SF( Y, 50,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_A32X32_FLOAT)
 125    SF( Y, 50,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_L32X32_FLOAT)
 126    SF( Y, 50,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_I32X32_FLOAT)
 127    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R16G16B16A16_SSCALED)
 128    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R16G16B16A16_USCALED)
 129    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R32G32_SSCALED)
 130    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R32G32_USCALED)
 131    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R32G32_SFIXED)
 132    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R64_PASSTHRU)
 133    SF( Y,  Y,  x,  Y,  Y,  Y,  Y,  x, 60, BRW_SURFACEFORMAT_B8G8R8A8_UNORM)
 134    SF( Y,  Y,  x,  x,  Y,  Y,  x,  x,  x, BRW_SURFACEFORMAT_B8G8R8A8_UNORM_SRGB)
 135 /* smpl filt shad CK  RT  AB  VB  SO  color */
 136    SF( Y,  Y,  x,  x,  Y,  Y,  Y,  x, 60, BRW_SURFACEFORMAT_R10G10B10A2_UNORM)
 137    SF( Y,  Y,  x,  x,  x,  x,  x,  x, 60, BRW_SURFACEFORMAT_R10G10B10A2_UNORM_SRGB)
 138    SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R10G10B10A2_UINT)
 139    SF( Y,  Y,  x,  x,  x,  Y,  Y,  x,  x, BRW_SURFACEFORMAT_R10G10B10_SNORM_A2_UNORM)
 140    SF( Y,  Y,  x,  x,  Y,  Y,  Y,  x, 60, BRW_SURFACEFORMAT_R8G8B8A8_UNORM)
 141    SF( Y,  Y,  x,  x,  Y,  Y,  x,  x, 60, BRW_SURFACEFORMAT_R8G8B8A8_UNORM_SRGB)
 142    SF( Y,  Y,  x,  x,  Y, 60,  Y,  x,  x, BRW_SURFACEFORMAT_R8G8B8A8_SNORM)
 143    SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R8G8B8A8_SINT)
 144    SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R8G8B8A8_UINT)
 145    SF( Y,  Y,  x,  x,  Y, 45,  Y,  x,  x, BRW_SURFACEFORMAT_R16G16_UNORM)
 146    SF( Y,  Y,  x,  x,  Y, 60,  Y,  x,  x, BRW_SURFACEFORMAT_R16G16_SNORM)
 147    SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R16G16_SINT)
 148    SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R16G16_UINT)
 149    SF( Y,  Y,  x,  x,  Y,  Y,  Y,  x,  x, BRW_SURFACEFORMAT_R16G16_FLOAT)
 150    SF( Y,  Y,  x,  x,  Y,  Y,  x,  x, 60, BRW_SURFACEFORMAT_B10G10R10A2_UNORM)
 151    SF( Y,  Y,  x,  x,  Y,  Y,  x,  x, 60, BRW_SURFACEFORMAT_B10G10R10A2_UNORM_SRGB)
 152    SF( Y,  Y,  x,  x,  Y,  Y,  Y,  x,  x, BRW_SURFACEFORMAT_R11G11B10_FLOAT)
 153    SF( Y,  x,  x,  x,  Y,  x,  Y,  Y,  x, BRW_SURFACEFORMAT_R32_SINT)
 154    SF( Y,  x,  x,  x,  Y,  x,  Y,  Y,  x, BRW_SURFACEFORMAT_R32_UINT)
 155    SF( Y, 50,  Y,  x,  Y,  Y,  Y,  Y,  x, BRW_SURFACEFORMAT_R32_FLOAT)
 156    SF( Y, 50,  Y,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R24_UNORM_X8_TYPELESS)
 157    SF( Y,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_X24_TYPELESS_G8_UINT)
 158    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_L16A16_UNORM)
 159    SF( Y, 50,  Y,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_I24X8_UNORM)
 160    SF( Y, 50,  Y,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_L24X8_UNORM)
 161    SF( Y, 50,  Y,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_A24X8_UNORM)
 162    SF( Y, 50,  Y,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_I32_FLOAT)
 163    SF( Y, 50,  Y,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_L32_FLOAT)
 164    SF( Y, 50,  Y,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_A32_FLOAT)
 165    SF( Y,  Y,  x,  Y,  x,  x,  x,  x, 60, BRW_SURFACEFORMAT_B8G8R8X8_UNORM)
 166    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_B8G8R8X8_UNORM_SRGB)
 167    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R8G8B8X8_UNORM)
 168    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R8G8B8X8_UNORM_SRGB)
 169    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R9G9B9E5_SHAREDEXP)
 170    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_B10G10R10X2_UNORM)
 171    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_L16A16_FLOAT)
 172    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R32_UNORM)
 173    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R32_SNORM)
 174 /* smpl filt shad CK  RT  AB  VB  SO  color */
 175    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R10G10B10X2_USCALED)
 176    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R8G8B8A8_SSCALED)
 177    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R8G8B8A8_USCALED)
 178    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R16G16_SSCALED)
 179    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R16G16_USCALED)
 180    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R32_SSCALED)
 181    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R32_USCALED)
 182    SF( Y,  Y,  x,  Y,  Y,  Y,  x,  x,  x, BRW_SURFACEFORMAT_B5G6R5_UNORM)
 183    SF( Y,  Y,  x,  x,  Y,  Y,  x,  x,  x, BRW_SURFACEFORMAT_B5G6R5_UNORM_SRGB)
 184    SF( Y,  Y,  x,  Y,  Y,  Y,  x,  x,  x, BRW_SURFACEFORMAT_B5G5R5A1_UNORM)
 185    SF( Y,  Y,  x,  x,  Y,  Y,  x,  x,  x, BRW_SURFACEFORMAT_B5G5R5A1_UNORM_SRGB)
 186    SF( Y,  Y,  x,  Y,  Y,  Y,  x,  x,  x, BRW_SURFACEFORMAT_B4G4R4A4_UNORM)
 187    SF( Y,  Y,  x,  x,  Y,  Y,  x,  x,  x, BRW_SURFACEFORMAT_B4G4R4A4_UNORM_SRGB)
 188    SF( Y,  Y,  x,  x,  Y,  Y,  Y,  x,  x, BRW_SURFACEFORMAT_R8G8_UNORM)
 189    SF( Y,  Y,  x,  Y,  Y, 60,  Y,  x,  x, BRW_SURFACEFORMAT_R8G8_SNORM)
 190    SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R8G8_SINT)
 191    SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R8G8_UINT)
 192    SF( Y,  Y,  Y,  x,  Y, 45,  Y,  x, 70, BRW_SURFACEFORMAT_R16_UNORM)
 193    SF( Y,  Y,  x,  x,  Y, 60,  Y,  x,  x, BRW_SURFACEFORMAT_R16_SNORM)
 194    SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R16_SINT)
 195    SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R16_UINT)
 196    SF( Y,  Y,  x,  x,  Y,  Y,  Y,  x,  x, BRW_SURFACEFORMAT_R16_FLOAT)
 197    SF(50, 50,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_A8P8_UNORM_PALETTE0)
 198    SF(50, 50,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_A8P8_UNORM_PALETTE1)
 199    SF( Y,  Y,  Y,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_I16_UNORM)
 200    SF( Y,  Y,  Y,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_L16_UNORM)
 201    SF( Y,  Y,  Y,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_A16_UNORM)
 202    SF( Y,  Y,  x,  Y,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_L8A8_UNORM)
 203    SF( Y,  Y,  Y,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_I16_FLOAT)
 204    SF( Y,  Y,  Y,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_L16_FLOAT)
 205    SF( Y,  Y,  Y,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_A16_FLOAT)
 206    SF(45, 45,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_L8A8_UNORM_SRGB)
 207    SF( Y,  Y,  x,  Y,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R5G5_SNORM_B6_UNORM)
 208    SF( x,  x,  x,  x,  Y,  Y,  x,  x,  x, BRW_SURFACEFORMAT_B5G5R5X1_UNORM)
 209    SF( x,  x,  x,  x,  Y,  Y,  x,  x,  x, BRW_SURFACEFORMAT_B5G5R5X1_UNORM_SRGB)
 210    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R8G8_SSCALED)
 211    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R8G8_USCALED)
 212 /* smpl filt shad CK  RT  AB  VB  SO  color */
 213    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R16_SSCALED)
 214    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R16_USCALED)
 215    SF(50, 50,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_P8A8_UNORM_PALETTE0)
 216    SF(50, 50,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_P8A8_UNORM_PALETTE1)
 217    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_A1B5G5R5_UNORM)
 218    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_A4B4G4R4_UNORM)
 219    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_L8A8_UINT)
 220    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_L8A8_SINT)
 221    SF( Y,  Y,  x, 45,  Y,  Y,  Y,  x,  x, BRW_SURFACEFORMAT_R8_UNORM)
 222    SF( Y,  Y,  x,  x,  Y, 60,  Y,  x,  x, BRW_SURFACEFORMAT_R8_SNORM)
 223    SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R8_SINT)
 224    SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R8_UINT)
 225    SF( Y,  Y,  x,  Y,  Y,  Y,  x,  x,  x, BRW_SURFACEFORMAT_A8_UNORM)
 226    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_I8_UNORM)
 227    SF( Y,  Y,  x,  Y,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_L8_UNORM)
 228    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_P4A4_UNORM)
 229    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_A4P4_UNORM)
 230    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R8_SSCALED)
 231    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R8_USCALED)
 232    SF(45, 45,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_P8_UNORM_PALETTE0)
 233    SF(45, 45,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_L8_UNORM_SRGB)
 234    SF(45, 45,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_P8_UNORM_PALETTE1)
 235    SF(45, 45,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_P4A4_UNORM_PALETTE1)
 236    SF(45, 45,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_A4P4_UNORM_PALETTE1)
 237    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_Y8_SNORM)
 238    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_L8_UINT)
 239    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_L8_SINT)
 240    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_I8_UINT)
 241    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_I8_SINT)
 242    SF(45, 45,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_DXT1_RGB_SRGB)
 243    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R1_UINT)
 244    SF( Y,  Y,  x,  Y,  Y,  x,  x,  x, 60, BRW_SURFACEFORMAT_YCRCB_NORMAL)
 245    SF( Y,  Y,  x,  Y,  Y,  x,  x,  x, 60, BRW_SURFACEFORMAT_YCRCB_SWAPUVY)
 246    SF(45, 45,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_P2_UNORM_PALETTE0)
 247    SF(45, 45,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_P2_UNORM_PALETTE1)
 248    SF( Y,  Y,  x,  Y,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_BC1_UNORM)
 249    SF( Y,  Y,  x,  Y,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_BC2_UNORM)
 250    SF( Y,  Y,  x,  Y,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_BC3_UNORM)
 251    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_BC4_UNORM)
 252    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_BC5_UNORM)
 253    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_BC1_UNORM_SRGB)
 254    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_BC2_UNORM_SRGB)
 255    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_BC3_UNORM_SRGB)
 256    SF( Y,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_MONO8)
 257    SF( Y,  Y,  x,  x,  Y,  x,  x,  x, 60, BRW_SURFACEFORMAT_YCRCB_SWAPUV)
 258    SF( Y,  Y,  x,  x,  Y,  x,  x,  x, 60, BRW_SURFACEFORMAT_YCRCB_SWAPY)
 259    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_DXT1_RGB)
 260 /* smpl filt shad CK  RT  AB  VB  SO  color */
 261    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_FXT1)
 262    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R8G8B8_UNORM)
 263    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R8G8B8_SNORM)
 264    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R8G8B8_SSCALED)
 265    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R8G8B8_USCALED)
 266    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R64G64B64A64_FLOAT)
 267    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R64G64B64_FLOAT)
 268    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_BC4_SNORM)
 269    SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_BC5_SNORM)
 270    SF(50, 50,  x,  x,  x,  x, 60,  x,  x, BRW_SURFACEFORMAT_R16G16B16_FLOAT)
 271    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R16G16B16_UNORM)
 272    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R16G16B16_SNORM)
 273    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R16G16B16_SSCALED)
 274    SF( x,  x,  x,  x,  x,  x,  Y,  x,  x, BRW_SURFACEFORMAT_R16G16B16_USCALED)
 275    SF(70, 70,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_BC6H_SF16)
 276    SF(70, 70,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_BC7_UNORM)
 277    SF(70, 70,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_BC7_UNORM_SRGB)
 278    SF(70, 70,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_BC6H_UF16)
 279    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_PLANAR_420_8)
 280    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R8G8B8_UNORM_SRGB)
 281    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_ETC1_RGB8)
 282    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_ETC2_RGB8)
 283    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_EAC_R11)
 284    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_EAC_RG11)
 285    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_EAC_SIGNED_R11)
 286    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_EAC_SIGNED_RG11)
 287    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_ETC2_SRGB8)
 288    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R16G16B16_UINT)
 289    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R16G16B16_SINT)
 290    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R32_SFIXED)
 291    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R10G10B10A2_SNORM)
 292    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R10G10B10A2_USCALED)
 293    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R10G10B10A2_SSCALED)
 294    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R10G10B10A2_SINT)
 295    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_B10G10R10A2_SNORM)
 296    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_B10G10R10A2_USCALED)
 297    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_B10G10R10A2_SSCALED)
 298    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_B10G10R10A2_UINT)
 299    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_B10G10R10A2_SINT)
 300    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R64G64B64A64_PASSTHRU)
 301    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R64G64B64_PASSTHRU)
 302    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_ETC2_RGB8_PTA)
 303    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_ETC2_SRGB8_PTA)
 304    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_ETC2_EAC_RGBA8)
 305    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_ETC2_EAC_SRGB8_A8)
 306    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R8G8B8_UINT)
 307    SF( x,  x,  x,  x,  x,  x,  x,  x,  x, BRW_SURFACEFORMAT_R8G8B8_SINT)
 308 };
 309 #undef x
 310 #undef Y
 311
 312 uint32_t
 313 brw_format_for_mesa_format(mesa_format mesa_format)
 314 {
 315    /* This table is ordered according to the enum ordering in formats.h.  We do
 316     * expect that enum to be extended without our explicit initialization
 317     * staying in sync, so we initialize to 0 even though
 318     * BRW_SURFACEFORMAT_R32G32B32A32_FLOAT happens to also be 0.
 319     */
 320    static const uint32_t table[MESA_FORMAT_COUNT] =
 321    {
 322       [MESA_FORMAT_A8B8G8R8_UNORM] = 0,
 323       [MESA_FORMAT_R8G8B8A8_UNORM] = BRW_SURFACEFORMAT_R8G8B8A8_UNORM,
 324       [MESA_FORMAT_B8G8R8A8_UNORM] = BRW_SURFACEFORMAT_B8G8R8A8_UNORM,
 325       [MESA_FORMAT_A8R8G8B8_UNORM] = 0,
 326       [MESA_FORMAT_X8B8G8R8_UNORM] = 0,
 327       [MESA_FORMAT_R8G8B8X8_UNORM] = BRW_SURFACEFORMAT_R8G8B8X8_UNORM,
 328       [MESA_FORMAT_B8G8R8X8_UNORM] = BRW_SURFACEFORMAT_B8G8R8X8_UNORM,
 329       [MESA_FORMAT_X8R8G8B8_UNORM] = 0,
 330       [MESA_FORMAT_BGR_UNORM8] = 0,
 331       [MESA_FORMAT_RGB_UNORM8] = BRW_SURFACEFORMAT_R8G8B8_UNORM,
 332       [MESA_FORMAT_B5G6R5_UNORM] = BRW_SURFACEFORMAT_B5G6R5_UNORM,
 333       [MESA_FORMAT_R5G6B5_UNORM] = 0,
 334       [MESA_FORMAT_B4G4R4A4_UNORM] = BRW_SURFACEFORMAT_B4G4R4A4_UNORM,
 335       [MESA_FORMAT_A4R4G4B4_UNORM] = 0,
 336       [MESA_FORMAT_A1B5G5R5_UNORM] = 0,
 337       [MESA_FORMAT_B5G5R5A1_UNORM] = BRW_SURFACEFORMAT_B5G5R5A1_UNORM,
 338       [MESA_FORMAT_A1R5G5B5_UNORM] = 0,
 339       [MESA_FORMAT_L4A4_UNORM] = 0,
 340       [MESA_FORMAT_L8A8_UNORM] = BRW_SURFACEFORMAT_L8A8_UNORM,
 341       [MESA_FORMAT_A8L8_UNORM] = 0,
 342       [MESA_FORMAT_L16A16_UNORM] = BRW_SURFACEFORMAT_L16A16_UNORM,
 343       [MESA_FORMAT_A16L16_UNORM] = 0,
 344       [MESA_FORMAT_B2G3R3_UNORM] = 0,
 345       [MESA_FORMAT_A_UNORM8] = BRW_SURFACEFORMAT_A8_UNORM,
 346       [MESA_FORMAT_A_UNORM16] = BRW_SURFACEFORMAT_A16_UNORM,
 347       [MESA_FORMAT_L_UNORM8] = BRW_SURFACEFORMAT_L8_UNORM,
 348       [MESA_FORMAT_L_UNORM16] = BRW_SURFACEFORMAT_L16_UNORM,
 349       [MESA_FORMAT_I_UNORM8] = BRW_SURFACEFORMAT_I8_UNORM,
 350       [MESA_FORMAT_I_UNORM16] = BRW_SURFACEFORMAT_I16_UNORM,
 351       [MESA_FORMAT_YCBCR_REV] = BRW_SURFACEFORMAT_YCRCB_NORMAL,
 352       [MESA_FORMAT_YCBCR] = BRW_SURFACEFORMAT_YCRCB_SWAPUVY,
 353       [MESA_FORMAT_R_UNORM8] = BRW_SURFACEFORMAT_R8_UNORM,
 354       [MESA_FORMAT_R8G8_UNORM] = BRW_SURFACEFORMAT_R8G8_UNORM,
 355       [MESA_FORMAT_G8R8_UNORM] = 0,
 356       [MESA_FORMAT_R_UNORM16] = BRW_SURFACEFORMAT_R16_UNORM,
 357       [MESA_FORMAT_R16G16_UNORM] = BRW_SURFACEFORMAT_R16G16_UNORM,
 358       [MESA_FORMAT_G16R16_UNORM] = 0,
 359       [MESA_FORMAT_B10G10R10A2_UNORM] = BRW_SURFACEFORMAT_B10G10R10A2_UNORM,
 360       [MESA_FORMAT_S8_UINT_Z24_UNORM] = 0,
 361       [MESA_FORMAT_Z24_UNORM_S8_UINT] = 0,
 362       [MESA_FORMAT_Z_UNORM16] = 0,
 363       [MESA_FORMAT_Z24_UNORM_X8_UINT] = 0,
 364       [MESA_FORMAT_X8_UINT_Z24_UNORM] = 0,
 365       [MESA_FORMAT_Z_UNORM32] = 0,
 366       [MESA_FORMAT_S_UINT8] = BRW_SURFACEFORMAT_R8_UINT,
 367
 368       [MESA_FORMAT_BGR_SRGB8] = 0,
 369       [MESA_FORMAT_A8B8G8R8_SRGB] = 0,
 370       [MESA_FORMAT_B8G8R8A8_SRGB] = BRW_SURFACEFORMAT_B8G8R8A8_UNORM_SRGB,
 371       [MESA_FORMAT_A8R8G8B8_SRGB] = 0,
 372       [MESA_FORMAT_R8G8B8A8_SRGB] = BRW_SURFACEFORMAT_R8G8B8A8_UNORM_SRGB,
 373       [MESA_FORMAT_X8R8G8B8_SRGB] = 0,
 374       [MESA_FORMAT_L_SRGB8] = BRW_SURFACEFORMAT_L8_UNORM_SRGB,
 375       [MESA_FORMAT_L8A8_SRGB] = BRW_SURFACEFORMAT_L8A8_UNORM_SRGB,
 376       [MESA_FORMAT_A8L8_SRGB] = 0,
 377       [MESA_FORMAT_SRGB_DXT1] = BRW_SURFACEFORMAT_DXT1_RGB_SRGB,
 378       [MESA_FORMAT_SRGBA_DXT1] = BRW_SURFACEFORMAT_BC1_UNORM_SRGB,
 379       [MESA_FORMAT_SRGBA_DXT3] = BRW_SURFACEFORMAT_BC2_UNORM_SRGB,
 380       [MESA_FORMAT_SRGBA_DXT5] = BRW_SURFACEFORMAT_BC3_UNORM_SRGB,
 381
 382       [MESA_FORMAT_RGB_FXT1] = BRW_SURFACEFORMAT_FXT1,
 383       [MESA_FORMAT_RGBA_FXT1] = BRW_SURFACEFORMAT_FXT1,
 384       [MESA_FORMAT_RGB_DXT1] = BRW_SURFACEFORMAT_DXT1_RGB,
 385       [MESA_FORMAT_RGBA_DXT1] = BRW_SURFACEFORMAT_BC1_UNORM,
 386       [MESA_FORMAT_RGBA_DXT3] = BRW_SURFACEFORMAT_BC2_UNORM,
 387       [MESA_FORMAT_RGBA_DXT5] = BRW_SURFACEFORMAT_BC3_UNORM,
 388
 389       [MESA_FORMAT_RGBA_FLOAT32] = BRW_SURFACEFORMAT_R32G32B32A32_FLOAT,
 390       [MESA_FORMAT_RGBA_FLOAT16] = BRW_SURFACEFORMAT_R16G16B16A16_FLOAT,
 391       [MESA_FORMAT_RGB_FLOAT32] = BRW_SURFACEFORMAT_R32G32B32_FLOAT,
 392       [MESA_FORMAT_RGB_FLOAT16] = 0,
 393       [MESA_FORMAT_A_FLOAT32] = BRW_SURFACEFORMAT_A32_FLOAT,
 394       [MESA_FORMAT_A_FLOAT16] = BRW_SURFACEFORMAT_A16_FLOAT,
 395       [MESA_FORMAT_L_FLOAT32] = BRW_SURFACEFORMAT_L32_FLOAT,
 396       [MESA_FORMAT_L_FLOAT16] = BRW_SURFACEFORMAT_L16_FLOAT,
 397       [MESA_FORMAT_LA_FLOAT32] = BRW_SURFACEFORMAT_L32A32_FLOAT,
 398       [MESA_FORMAT_LA_FLOAT16] = BRW_SURFACEFORMAT_L16A16_FLOAT,
 399       [MESA_FORMAT_I_FLOAT32] = BRW_SURFACEFORMAT_I32_FLOAT,
 400       [MESA_FORMAT_I_FLOAT16] = BRW_SURFACEFORMAT_I16_FLOAT,
 401       [MESA_FORMAT_R_FLOAT32] = BRW_SURFACEFORMAT_R32_FLOAT,
 402       [MESA_FORMAT_R_FLOAT16] = BRW_SURFACEFORMAT_R16_FLOAT,
 403       [MESA_FORMAT_RG_FLOAT32] = BRW_SURFACEFORMAT_R32G32_FLOAT,
 404       [MESA_FORMAT_RG_FLOAT16] = BRW_SURFACEFORMAT_R16G16_FLOAT,
 405
 406       [MESA_FORMAT_A_UINT8] = 0,
 407       [MESA_FORMAT_A_UINT16] = 0,
 408       [MESA_FORMAT_A_UINT32] = 0,
 409       [MESA_FORMAT_A_SINT8] = 0,
 410       [MESA_FORMAT_A_SINT16] = 0,
 411       [MESA_FORMAT_A_SINT32] = 0,
 412
 413       [MESA_FORMAT_I_UINT8] = 0,
 414       [MESA_FORMAT_I_UINT16] = 0,
 415       [MESA_FORMAT_I_UINT32] = 0,
 416       [MESA_FORMAT_I_SINT8] = 0,
 417       [MESA_FORMAT_I_SINT16] = 0,
 418       [MESA_FORMAT_I_SINT32] = 0,
 419
 420       [MESA_FORMAT_L_UINT8] = 0,
 421       [MESA_FORMAT_L_UINT16] = 0,
 422       [MESA_FORMAT_L_UINT32] = 0,
 423       [MESA_FORMAT_L_SINT8] = 0,
 424       [MESA_FORMAT_L_SINT16] = 0,
 425       [MESA_FORMAT_L_SINT32] = 0,
 426
 427       [MESA_FORMAT_LA_UINT8] = 0,
 428       [MESA_FORMAT_LA_UINT16] = 0,
 429       [MESA_FORMAT_LA_UINT32] = 0,
 430       [MESA_FORMAT_LA_SINT8] = 0,
 431       [MESA_FORMAT_LA_SINT16] = 0,
 432       [MESA_FORMAT_LA_SINT32] = 0,
 433
 434       [MESA_FORMAT_R_SINT8] = BRW_SURFACEFORMAT_R8_SINT,
 435       [MESA_FORMAT_RG_SINT8] = BRW_SURFACEFORMAT_R8G8_SINT,
 436       [MESA_FORMAT_RGB_SINT8] = BRW_SURFACEFORMAT_R8G8B8_SINT,
 437       [MESA_FORMAT_RGBA_SINT8] = BRW_SURFACEFORMAT_R8G8B8A8_SINT,
 438       [MESA_FORMAT_R_SINT16] = BRW_SURFACEFORMAT_R16_SINT,
 439       [MESA_FORMAT_RG_SINT16] = BRW_SURFACEFORMAT_R16G16_SINT,
 440       [MESA_FORMAT_RGB_SINT16] = BRW_SURFACEFORMAT_R16G16B16_SINT,
 441       [MESA_FORMAT_RGBA_SINT16] = BRW_SURFACEFORMAT_R16G16B16A16_SINT,
 442       [MESA_FORMAT_R_SINT32] = BRW_SURFACEFORMAT_R32_SINT,
 443       [MESA_FORMAT_RG_SINT32] = BRW_SURFACEFORMAT_R32G32_SINT,
 444       [MESA_FORMAT_RGB_SINT32] = BRW_SURFACEFORMAT_R32G32B32_SINT,
 445       [MESA_FORMAT_RGBA_SINT32] = BRW_SURFACEFORMAT_R32G32B32A32_SINT,
 446
 447       [MESA_FORMAT_R_UINT8] = BRW_SURFACEFORMAT_R8_UINT,
 448       [MESA_FORMAT_RG_UINT8] = BRW_SURFACEFORMAT_R8G8_UINT,
 449       [MESA_FORMAT_RGB_UINT8] = BRW_SURFACEFORMAT_R8G8B8_UINT,
 450       [MESA_FORMAT_RGBA_UINT8] = BRW_SURFACEFORMAT_R8G8B8A8_UINT,
 451       [MESA_FORMAT_R_UINT16] = BRW_SURFACEFORMAT_R16_UINT,
 452       [MESA_FORMAT_RG_UINT16] = BRW_SURFACEFORMAT_R16G16_UINT,
 453       [MESA_FORMAT_RGB_UINT16] = BRW_SURFACEFORMAT_R16G16B16_UINT,
 454       [MESA_FORMAT_RGBA_UINT16] = BRW_SURFACEFORMAT_R16G16B16A16_UINT,
 455       [MESA_FORMAT_R_UINT32] = BRW_SURFACEFORMAT_R32_UINT,
 456       [MESA_FORMAT_RG_UINT32] = BRW_SURFACEFORMAT_R32G32_UINT,
 457       [MESA_FORMAT_RGB_UINT32] = BRW_SURFACEFORMAT_R32G32B32_UINT,
 458       [MESA_FORMAT_RGBA_UINT32] = BRW_SURFACEFORMAT_R32G32B32A32_UINT,
 459
 460       [MESA_FORMAT_R_SNORM8] = BRW_SURFACEFORMAT_R8_SNORM,
 461       [MESA_FORMAT_R8G8_SNORM] = BRW_SURFACEFORMAT_R8G8_SNORM,
 462       [MESA_FORMAT_X8B8G8R8_SNORM] = 0,
 463       [MESA_FORMAT_A8B8G8R8_SNORM] = 0,
 464       [MESA_FORMAT_R8G8B8A8_SNORM] = BRW_SURFACEFORMAT_R8G8B8A8_SNORM,
 465       [MESA_FORMAT_R_SNORM16] = BRW_SURFACEFORMAT_R16_SNORM,
 466       [MESA_FORMAT_R16G16_SNORM] = BRW_SURFACEFORMAT_R16G16_SNORM,
 467       [MESA_FORMAT_RGB_SNORM16] = BRW_SURFACEFORMAT_R16G16B16_SNORM,
 468       [MESA_FORMAT_RGBA_SNORM16] = BRW_SURFACEFORMAT_R16G16B16A16_SNORM,
 469       [MESA_FORMAT_RGBA_UNORM16] = BRW_SURFACEFORMAT_R16G16B16A16_UNORM,
 470
 471       [MESA_FORMAT_R_RGTC1_UNORM] = BRW_SURFACEFORMAT_BC4_UNORM,
 472       [MESA_FORMAT_R_RGTC1_SNORM] = BRW_SURFACEFORMAT_BC4_SNORM,
 473       [MESA_FORMAT_RG_RGTC2_UNORM] = BRW_SURFACEFORMAT_BC5_UNORM,
 474       [MESA_FORMAT_RG_RGTC2_SNORM] = BRW_SURFACEFORMAT_BC5_SNORM,
 475
 476       [MESA_FORMAT_L_LATC1_UNORM] = 0,
 477       [MESA_FORMAT_L_LATC1_SNORM] = 0,
 478       [MESA_FORMAT_LA_LATC2_UNORM] = 0,
 479       [MESA_FORMAT_LA_LATC2_SNORM] = 0,
 480
 481       [MESA_FORMAT_ETC1_RGB8] = BRW_SURFACEFORMAT_ETC1_RGB8,
 482       [MESA_FORMAT_ETC2_RGB8] = BRW_SURFACEFORMAT_ETC2_RGB8,
 483       [MESA_FORMAT_ETC2_SRGB8] = BRW_SURFACEFORMAT_ETC2_SRGB8,
 484       [MESA_FORMAT_ETC2_RGBA8_EAC] = BRW_SURFACEFORMAT_ETC2_EAC_RGBA8,
 485       [MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC] = BRW_SURFACEFORMAT_ETC2_EAC_SRGB8_A8,
 486       [MESA_FORMAT_ETC2_R11_EAC] = BRW_SURFACEFORMAT_EAC_R11,
 487       [MESA_FORMAT_ETC2_RG11_EAC] = BRW_SURFACEFORMAT_EAC_RG11,
 488       [MESA_FORMAT_ETC2_SIGNED_R11_EAC] = BRW_SURFACEFORMAT_EAC_SIGNED_R11,
 489       [MESA_FORMAT_ETC2_SIGNED_RG11_EAC] = BRW_SURFACEFORMAT_EAC_SIGNED_RG11,
 490       [MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1] = BRW_SURFACEFORMAT_ETC2_RGB8_PTA,
 491       [MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1] = BRW_SURFACEFORMAT_ETC2_SRGB8_PTA,
 492
 493       [MESA_FORMAT_BPTC_RGBA_UNORM] = BRW_SURFACEFORMAT_BC7_UNORM,
 494       [MESA_FORMAT_BPTC_SRGB_ALPHA_UNORM] = BRW_SURFACEFORMAT_BC7_UNORM_SRGB,
 495       [MESA_FORMAT_BPTC_RGB_SIGNED_FLOAT] = BRW_SURFACEFORMAT_BC6H_SF16,
 496       [MESA_FORMAT_BPTC_RGB_UNSIGNED_FLOAT] = BRW_SURFACEFORMAT_BC6H_UF16,
 497
 498       [MESA_FORMAT_A_SNORM8] = 0,
 499       [MESA_FORMAT_L_SNORM8] = 0,
 500       [MESA_FORMAT_L8A8_SNORM] = 0,
 501       [MESA_FORMAT_A8L8_SNORM] = 0,
 502       [MESA_FORMAT_I_SNORM8] = 0,
 503       [MESA_FORMAT_A_SNORM16] = 0,
 504       [MESA_FORMAT_L_SNORM16] = 0,
 505       [MESA_FORMAT_LA_SNORM16] = 0,
 506       [MESA_FORMAT_I_SNORM16] = 0,
 507
 508       [MESA_FORMAT_R9G9B9E5_FLOAT] = BRW_SURFACEFORMAT_R9G9B9E5_SHAREDEXP,
 509       [MESA_FORMAT_R11G11B10_FLOAT] = BRW_SURFACEFORMAT_R11G11B10_FLOAT,
 510
 511       [MESA_FORMAT_Z_FLOAT32] = 0,
 512       [MESA_FORMAT_Z32_FLOAT_S8X24_UINT] = 0,
 513
 514       [MESA_FORMAT_R10G10B10A2_UNORM] = BRW_SURFACEFORMAT_R10G10B10A2_UNORM,
 515       [MESA_FORMAT_B10G10R10A2_UINT] = BRW_SURFACEFORMAT_B10G10R10A2_UINT,
 516       [MESA_FORMAT_R10G10B10A2_UINT] = BRW_SURFACEFORMAT_R10G10B10A2_UINT,
 517
 518       [MESA_FORMAT_B4G4R4X4_UNORM] = 0,
 519       [MESA_FORMAT_B5G5R5X1_UNORM] = BRW_SURFACEFORMAT_B5G5R5X1_UNORM,
 520       [MESA_FORMAT_R8G8B8X8_SNORM] = 0,
 521       [MESA_FORMAT_R8G8B8X8_SRGB] = BRW_SURFACEFORMAT_R8G8B8X8_UNORM_SRGB,
 522       [MESA_FORMAT_X8B8G8R8_SRGB] = 0,
 523       [MESA_FORMAT_RGBX_UINT8] = 0,
 524       [MESA_FORMAT_RGBX_SINT8] = 0,
 525       [MESA_FORMAT_B10G10R10X2_UNORM] = BRW_SURFACEFORMAT_B10G10R10X2_UNORM,
 526       [MESA_FORMAT_RGBX_UNORM16] = BRW_SURFACEFORMAT_R16G16B16X16_UNORM,
 527       [MESA_FORMAT_RGBX_SNORM16] = 0,
 528       [MESA_FORMAT_RGBX_FLOAT16] = BRW_SURFACEFORMAT_R16G16B16X16_FLOAT,
 529       [MESA_FORMAT_RGBX_UINT16] = 0,
 530       [MESA_FORMAT_RGBX_SINT16] = 0,
 531       [MESA_FORMAT_RGBX_FLOAT32] = BRW_SURFACEFORMAT_R32G32B32X32_FLOAT,
 532       [MESA_FORMAT_RGBX_UINT32] = 0,
 533       [MESA_FORMAT_RGBX_SINT32] = 0,
 534    };
 535    assert(mesa_format < MESA_FORMAT_COUNT);
 536    return table[mesa_format];
 537 }
 538
 539 void
 540 brw_init_surface_formats(struct brw_context *brw)
 541 {
 542    struct gl_context *ctx = &brw->ctx;
 543    int gen;
 544    mesa_format format;
 545
 546    memset(&ctx->TextureFormatSupported, 0, sizeof(ctx->TextureFormatSupported));
 547
 548    gen = brw->gen * 10;
 549    if (brw->is_g4x || brw->is_haswell)
 550       gen += 5;
 551
 552    for (format = MESA_FORMAT_NONE + 1; format < MESA_FORMAT_COUNT; format++) {
 553       uint32_t texture, render;
 554       const struct surface_format_info *rinfo, *tinfo;
 555       bool is_integer = _mesa_is_format_integer_color(format);
 556
 557       render = texture = brw_format_for_mesa_format(format);
 558       tinfo = &surface_formats[texture];
 559
 560       /* The value of BRW_SURFACEFORMAT_R32G32B32A32_FLOAT is 0, so don't skip
 561        * it.
 562        */
 563       if (texture == 0 && format != MESA_FORMAT_RGBA_FLOAT32)
 564          continue;
 565
 566       if (gen >= tinfo->sampling && (gen >= tinfo->filtering || is_integer))
 567          ctx->TextureFormatSupported[format] = true;
 568
 569       /* Re-map some render target formats to make them supported when they
 570        * wouldn't be using their format for texturing.
 571        */
 572       switch (render) {
 573          /* For these formats, we just need to read/write the first
 574           * channel into R, which is to say that we just treat them as
 575           * GL_RED.
 576           */
 577       case BRW_SURFACEFORMAT_I32_FLOAT:
 578       case BRW_SURFACEFORMAT_L32_FLOAT:
 579          render = BRW_SURFACEFORMAT_R32_FLOAT;
 580          break;
 581       case BRW_SURFACEFORMAT_I16_FLOAT:
 582       case BRW_SURFACEFORMAT_L16_FLOAT:
 583          render = BRW_SURFACEFORMAT_R16_FLOAT;
 584          break;
 585       case BRW_SURFACEFORMAT_B8G8R8X8_UNORM:
 586          /* XRGB is handled as ARGB because the chips in this family
 587           * cannot render to XRGB targets.  This means that we have to
 588           * mask writes to alpha (ala glColorMask) and reconfigure the
 589           * alpha blending hardware to use GL_ONE (or GL_ZERO) for
 590           * cases where GL_DST_ALPHA (or GL_ONE_MINUS_DST_ALPHA) is
 591           * used.
 592           */
 593          render = BRW_SURFACEFORMAT_B8G8R8A8_UNORM;
 594          break;
 595       case BRW_SURFACEFORMAT_R8G8B8X8_UNORM:
 596          render = BRW_SURFACEFORMAT_R8G8B8A8_UNORM;
 597          break;
 598       case BRW_SURFACEFORMAT_R8G8B8X8_UNORM_SRGB:
 599          render = BRW_SURFACEFORMAT_R8G8B8A8_UNORM_SRGB;
 600          break;
 601       }
 602
 603       rinfo = &surface_formats[render];
 604
 605       /* Note that GL_EXT_texture_integer says that blending doesn't occur for
 606        * integer, so we don't need hardware support for blending on it.  Other
 607        * than that, GL in general requires alpha blending for render targets,
 608        * even though we don't support it for some formats.
 609        */
 610       if (gen >= rinfo->render_target &&
 611           (gen >= rinfo->alpha_blend || is_integer)) {
 612          brw->render_target_format[format] = render;
 613          brw->format_supported_as_render_target[format] = true;
 614       }
 615    }
 616
 617    /* We will check this table for FBO completeness, but the surface format
 618     * table above only covered color rendering.
 619     */
 620    brw->format_supported_as_render_target[MESA_FORMAT_Z24_UNORM_S8_UINT] = true;
 621    brw->format_supported_as_render_target[MESA_FORMAT_Z24_UNORM_X8_UINT] = true;
 622    brw->format_supported_as_render_target[MESA_FORMAT_S_UINT8] = true;
 623    brw->format_supported_as_render_target[MESA_FORMAT_Z_FLOAT32] = true;
 624    brw->format_supported_as_render_target[MESA_FORMAT_Z32_FLOAT_S8X24_UINT] = true;
 625    if (brw->gen >= 8)
 626       brw->format_supported_as_render_target[MESA_FORMAT_Z_UNORM16] = true;
 627
 628    /* We remap depth formats to a supported texturing format in
 629     * translate_tex_format().
 630     */
 631    ctx->TextureFormatSupported[MESA_FORMAT_Z24_UNORM_S8_UINT] = true;
 632    ctx->TextureFormatSupported[MESA_FORMAT_Z24_UNORM_X8_UINT] = true;
 633    ctx->TextureFormatSupported[MESA_FORMAT_Z_FLOAT32] = true;
 634    ctx->TextureFormatSupported[MESA_FORMAT_Z32_FLOAT_S8X24_UINT] = true;
 635
 636    /* Benchmarking shows that Z16 is slower than Z24, so there's no reason to
 637     * use it unless you're under memory (not memory bandwidth) pressure.
 638     *
 639     * Apparently, the GPU's depth scoreboarding works on a 32-bit granularity,
 640     * which corresponds to one pixel in the depth buffer for Z24 or Z32 formats.
 641     * However, it corresponds to two pixels with Z16, which means both need to
 642     * hit the early depth case in order for it to happen.
 643     *
 644     * Other speculation is that we may be hitting increased fragment shader
 645     * execution from GL_LEQUAL/GL_EQUAL depth tests at reduced precision.
 646     *
 647     * With the PMA stall workaround in place, Z16 is faster than Z24, as it
 648     * should be.
 649     */
 650    if (brw->gen >= 8)
 651       ctx->TextureFormatSupported[MESA_FORMAT_Z_UNORM16] = true;
 652
 653    /* On hardware that lacks support for ETC1, we map ETC1 to RGBX
 654     * during glCompressedTexImage2D(). See intel_mipmap_tree::wraps_etc1.
 655     */
 656    ctx->TextureFormatSupported[MESA_FORMAT_ETC1_RGB8] = true;
 657
 658    /* On hardware that lacks support for ETC2, we map ETC2 to a suitable
 659     * MESA_FORMAT during glCompressedTexImage2D().
 660     * See intel_mipmap_tree::wraps_etc2.
 661     */
 662    ctx->TextureFormatSupported[MESA_FORMAT_ETC2_RGB8] = true;
 663    ctx->TextureFormatSupported[MESA_FORMAT_ETC2_SRGB8] = true;
 664    ctx->TextureFormatSupported[MESA_FORMAT_ETC2_RGBA8_EAC] = true;
 665    ctx->TextureFormatSupported[MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC] = true;
 666    ctx->TextureFormatSupported[MESA_FORMAT_ETC2_R11_EAC] = true;
 667    ctx->TextureFormatSupported[MESA_FORMAT_ETC2_RG11_EAC] = true;
 668    ctx->TextureFormatSupported[MESA_FORMAT_ETC2_SIGNED_R11_EAC] = true;
 669    ctx->TextureFormatSupported[MESA_FORMAT_ETC2_SIGNED_RG11_EAC] = true;
 670    ctx->TextureFormatSupported[MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1] = true;
 671    ctx->TextureFormatSupported[MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1] = true;
 672 }
 673
 674 bool
 675 brw_render_target_supported(struct brw_context *brw,
 676                             struct gl_renderbuffer *rb)
 677 {
 678    mesa_format format = rb->Format;
 679
 680    /* Many integer formats are promoted to RGBA (like XRGB8888 is), which means
 681     * we would consider them renderable even though we don't have surface
 682     * support for their alpha behavior and don't have the blending unit
 683     * available to fake it like we do for XRGB8888.  Force them to being
 684     * unsupported.
 685     */
 686    if ((rb->_BaseFormat != GL_RGBA &&
 687         rb->_BaseFormat != GL_RG &&
 688         rb->_BaseFormat != GL_RED) && _mesa_is_format_integer_color(format))
 689       return false;
 690
 691    /* Under some conditions, MSAA is not supported for formats whose width is
 692     * more than 64 bits.
 693     */
 694    if (rb->NumSamples > 0 && _mesa_get_format_bytes(format) > 8) {
 695       /* Gen6: MSAA on >64 bit formats is unsupported. */
 696       if (brw->gen <= 6)
 697          return false;
 698
 699       /* Gen7: 8x MSAA on >64 bit formats is unsupported. */
 700       if (rb->NumSamples >= 8)
 701          return false;
 702    }
 703
 704    return brw->format_supported_as_render_target[format];
 705 }
 706
 707 GLuint
 708 translate_tex_format(struct brw_context *brw,
 709                      mesa_format mesa_format,
 710                      GLenum srgb_decode)
 711 {
 712    struct gl_context *ctx = &brw->ctx;
 713    if (srgb_decode == GL_SKIP_DECODE_EXT)
 714       mesa_format = _mesa_get_srgb_format_linear(mesa_format);
 715
 716    switch( mesa_format ) {
 717
 718    case MESA_FORMAT_Z_UNORM16:
 719       return BRW_SURFACEFORMAT_R16_UNORM;
 720
 721    case MESA_FORMAT_Z24_UNORM_S8_UINT:
 722    case MESA_FORMAT_Z24_UNORM_X8_UINT:
 723       return BRW_SURFACEFORMAT_R24_UNORM_X8_TYPELESS;
 724
 725    case MESA_FORMAT_Z_FLOAT32:
 726       return BRW_SURFACEFORMAT_R32_FLOAT;
 727
 728    case MESA_FORMAT_Z32_FLOAT_S8X24_UINT:
 729       return BRW_SURFACEFORMAT_R32_FLOAT_X8X24_TYPELESS;
 730
 731    case MESA_FORMAT_RGBA_FLOAT32:
 732       /* The value of this BRW_SURFACEFORMAT is 0, which tricks the
 733        * assertion below.
 734        */
 735       return BRW_SURFACEFORMAT_R32G32B32A32_FLOAT;
 736
 737    case MESA_FORMAT_SRGB_DXT1:
 738       if (brw->gen == 4 && !brw->is_g4x) {
 739          /* Work around missing SRGB DXT1 support on original gen4 by just
 740           * skipping SRGB decode.  It's not worth not supporting sRGB in
 741           * general to prevent this.
 742           */
 743          WARN_ONCE(true, "Demoting sRGB DXT1 texture to non-sRGB\n");
 744          mesa_format = MESA_FORMAT_RGB_DXT1;
 745       }
 746       return brw_format_for_mesa_format(mesa_format);
 747
 748    default:
 749       assert(brw_format_for_mesa_format(mesa_format) != 0);
 750       return brw_format_for_mesa_format(mesa_format);
 751    }
 752 }
 753
 754 /**
 755  * Convert a MESA_FORMAT to the corresponding BRW_DEPTHFORMAT enum.
 756  */
 757 uint32_t
 758 brw_depth_format(struct brw_context *brw, mesa_format format)
 759 {
 760    switch (format) {
 761    case MESA_FORMAT_Z_UNORM16:
 762       return BRW_DEPTHFORMAT_D16_UNORM;
 763    case MESA_FORMAT_Z_FLOAT32:
 764       return BRW_DEPTHFORMAT_D32_FLOAT;
 765    case MESA_FORMAT_Z24_UNORM_X8_UINT:
 766       if (brw->gen >= 6) {
 767          return BRW_DEPTHFORMAT_D24_UNORM_X8_UINT;
 768       } else {
 769          /* Use D24_UNORM_S8, not D24_UNORM_X8.
 770           *
 771           * D24_UNORM_X8 was not introduced until Gen5. (See the Ironlake PRM,
 772           * Volume 2, Part 1, Section 8.4.6 "Depth/Stencil Buffer State", Bits
 773           * 3DSTATE_DEPTH_BUFFER.Surface_Format).
 774           *
 775           * However, on Gen5, D24_UNORM_X8 may be used only if separate
 776           * stencil is enabled, and we never enable it. From the Ironlake PRM,
 777           * same section as above, 3DSTATE_DEPTH_BUFFER's
 778           * "Separate Stencil Buffer Enable" bit:
 779           *
 780           * "If this field is disabled, the Surface Format of the depth
 781           *  buffer cannot be D24_UNORM_X8_UINT."
 782           */
 783          return BRW_DEPTHFORMAT_D24_UNORM_S8_UINT;
 784       }
 785    case MESA_FORMAT_Z24_UNORM_S8_UINT:
 786       return BRW_DEPTHFORMAT_D24_UNORM_S8_UINT;
 787    case MESA_FORMAT_Z32_FLOAT_S8X24_UINT:
 788       return BRW_DEPTHFORMAT_D32_FLOAT_S8X24_UINT;
 789    default:
 790       unreachable("Unexpected depth format.");
 791    }
 792 }
 793
 794 /** Can HiZ be enabled on a depthbuffer of the given format? */
 795 bool
 796 brw_is_hiz_depth_format(struct brw_context *brw, mesa_format format)
 797 {
 798    if (!brw->has_hiz)
 799       return false;
 800
 801    switch (format) {
 802    case MESA_FORMAT_Z_FLOAT32:
 803    case MESA_FORMAT_Z32_FLOAT_S8X24_UINT:
 804    case MESA_FORMAT_Z24_UNORM_X8_UINT:
 805    case MESA_FORMAT_Z24_UNORM_S8_UINT:
 806    case MESA_FORMAT_Z_UNORM16:
 807       return true;
 808    default:
 809       return false;
 810    }
 811 }