src/gallium/drivers/freedreno/a3xx/fd3_format.c

   1 /*
   2  * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
   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 FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  *
  23  */
  24
  25 #include "pipe/p_defines.h"
  26 #include "util/format/u_format.h"
  27
  28 #include "fd3_format.h"
  29
  30 /* Specifies the table of all the formats and their features. Also supplies
  31  * the helpers that look up various data in those tables.
  32  */
  33
  34 struct fd3_format {
  35         enum a3xx_vtx_fmt vtx;
  36         enum a3xx_tex_fmt tex;
  37         enum a3xx_color_fmt rb;
  38         enum a3xx_color_swap swap;
  39         boolean present;
  40 };
  41
  42 #define RB_NONE ~0
  43
  44 /* vertex + texture */
  45 #define VT(pipe, fmt, rbfmt, swapfmt) \
  46         [PIPE_FORMAT_ ## pipe] = { \
  47                 .present = 1, \
  48                 .vtx = VFMT_ ## fmt, \
  49                 .tex = TFMT_ ## fmt, \
  50                 .rb = RB_ ## rbfmt, \
  51                 .swap = swapfmt \
  52         }
  53
  54 /* texture-only */
  55 #define _T(pipe, fmt, rbfmt, swapfmt) \
  56         [PIPE_FORMAT_ ## pipe] = { \
  57                 .present = 1, \
  58                 .vtx = ~0, \
  59                 .tex = TFMT_ ## fmt, \
  60                 .rb = RB_ ## rbfmt, \
  61                 .swap = swapfmt \
  62         }
  63
  64 /* vertex-only */
  65 #define V_(pipe, fmt, rbfmt, swapfmt) \
  66         [PIPE_FORMAT_ ## pipe] = { \
  67                 .present = 1, \
  68                 .vtx = VFMT_ ## fmt, \
  69                 .tex = ~0, \
  70                 .rb = RB_ ## rbfmt, \
  71                 .swap = swapfmt \
  72         }
  73
  74 static struct fd3_format formats[PIPE_FORMAT_COUNT] = {
  75         /* 8-bit */
  76         VT(R8_UNORM,   8_UNORM, R8_UNORM, WZYX),
  77         VT(R8_SNORM,   8_SNORM, NONE,     WZYX),
  78         VT(R8_UINT,    8_UINT,  R8_UINT,  WZYX),
  79         VT(R8_SINT,    8_SINT,  R8_SINT,  WZYX),
  80         V_(R8_USCALED, 8_UINT,  NONE,     WZYX),
  81         V_(R8_SSCALED, 8_SINT,  NONE,     WZYX),
  82
  83         _T(A8_UNORM,   8_UNORM, A8_UNORM, WZYX),
  84         _T(L8_UNORM,   8_UNORM, R8_UNORM, WZYX),
  85         _T(I8_UNORM,   8_UNORM, NONE,     WZYX),
  86
  87         _T(A8_UINT,    8_UINT,  NONE,     WZYX),
  88         _T(A8_SINT,    8_SINT,  NONE,     WZYX),
  89         _T(L8_UINT,    8_UINT,  NONE,     WZYX),
  90         _T(L8_SINT,    8_SINT,  NONE,     WZYX),
  91         _T(I8_UINT,    8_UINT,  NONE,     WZYX),
  92         _T(I8_SINT,    8_SINT,  NONE,     WZYX),
  93
  94         _T(S8_UINT,    8_UINT,  R8_UNORM, WZYX),
  95
  96         /* 16-bit */
  97         VT(R16_UNORM,   16_UNORM, NONE,     WZYX),
  98         VT(R16_SNORM,   16_SNORM, NONE,     WZYX),
  99         VT(R16_UINT,    16_UINT,  R16_UINT, WZYX),
 100         VT(R16_SINT,    16_SINT,  R16_SINT, WZYX),
 101         V_(R16_USCALED, 16_UINT,  NONE,     WZYX),
 102         V_(R16_SSCALED, 16_SINT,  NONE,     WZYX),
 103         VT(R16_FLOAT,   16_FLOAT, R16_FLOAT,WZYX),
 104
 105         _T(A16_UINT,    16_UINT,  NONE,     WZYX),
 106         _T(A16_SINT,    16_SINT,  NONE,     WZYX),
 107         _T(L16_UINT,    16_UINT,  NONE,     WZYX),
 108         _T(L16_SINT,    16_SINT,  NONE,     WZYX),
 109         _T(I16_UINT,    16_UINT,  NONE,     WZYX),
 110         _T(I16_SINT,    16_SINT,  NONE,     WZYX),
 111
 112         VT(R8G8_UNORM,   8_8_UNORM, R8G8_UNORM, WZYX),
 113         VT(R8G8_SNORM,   8_8_SNORM, R8G8_SNORM, WZYX),
 114         VT(R8G8_UINT,    8_8_UINT,  NONE,       WZYX),
 115         VT(R8G8_SINT,    8_8_SINT,  NONE,       WZYX),
 116         V_(R8G8_USCALED, 8_8_UINT,  NONE,       WZYX),
 117         V_(R8G8_SSCALED, 8_8_SINT,  NONE,       WZYX),
 118
 119         _T(L8A8_UINT,    8_8_UINT,  NONE,       WZYX),
 120         _T(L8A8_SINT,    8_8_SINT,  NONE,       WZYX),
 121
 122         _T(Z16_UNORM,      Z16_UNORM,     R8G8_UNORM,     WZYX),
 123         _T(B5G6R5_UNORM,   5_6_5_UNORM,   R5G6B5_UNORM,   WXYZ),
 124         _T(B5G5R5A1_UNORM, 5_5_5_1_UNORM, R5G5B5A1_UNORM, WXYZ),
 125         _T(B5G5R5X1_UNORM, 5_5_5_1_UNORM, R5G5B5A1_UNORM, WXYZ),
 126         _T(B4G4R4A4_UNORM, 4_4_4_4_UNORM, R4G4B4A4_UNORM, WXYZ),
 127
 128         /* 24-bit */
 129         V_(R8G8B8_UNORM,   8_8_8_UNORM, NONE, WZYX),
 130         V_(R8G8B8_SNORM,   8_8_8_SNORM, NONE, WZYX),
 131         V_(R8G8B8_UINT,    8_8_8_UINT,  NONE, WZYX),
 132         V_(R8G8B8_SINT,    8_8_8_SINT,  NONE, WZYX),
 133         V_(R8G8B8_USCALED, 8_8_8_UINT,  NONE, WZYX),
 134         V_(R8G8B8_SSCALED, 8_8_8_SINT,  NONE, WZYX),
 135
 136         /* 32-bit */
 137         VT(R32_UINT,    32_UINT,  R32_UINT, WZYX),
 138         VT(R32_SINT,    32_SINT,  R32_SINT, WZYX),
 139         V_(R32_USCALED, 32_UINT,  NONE,     WZYX),
 140         V_(R32_SSCALED, 32_SINT,  NONE,     WZYX),
 141         VT(R32_FLOAT,   32_FLOAT, R32_FLOAT,WZYX),
 142         V_(R32_FIXED,   32_FIXED, NONE,     WZYX),
 143
 144         _T(A32_UINT,    32_UINT,  NONE,     WZYX),
 145         _T(A32_SINT,    32_SINT,  NONE,     WZYX),
 146         _T(L32_UINT,    32_UINT,  NONE,     WZYX),
 147         _T(L32_SINT,    32_SINT,  NONE,     WZYX),
 148         _T(I32_UINT,    32_UINT,  NONE,     WZYX),
 149         _T(I32_SINT,    32_SINT,  NONE,     WZYX),
 150
 151         VT(R16G16_UNORM,   16_16_UNORM, NONE,        WZYX),
 152         VT(R16G16_SNORM,   16_16_SNORM, NONE,        WZYX),
 153         VT(R16G16_UINT,    16_16_UINT,  R16G16_UINT, WZYX),
 154         VT(R16G16_SINT,    16_16_SINT,  R16G16_SINT, WZYX),
 155         V_(R16G16_USCALED, 16_16_UINT,  NONE,        WZYX),
 156         V_(R16G16_SSCALED, 16_16_SINT,  NONE,        WZYX),
 157         VT(R16G16_FLOAT,   16_16_FLOAT, R16G16_FLOAT,WZYX),
 158
 159         _T(L16A16_UINT,    16_16_UINT,  NONE,        WZYX),
 160         _T(L16A16_SINT,    16_16_SINT,  NONE,        WZYX),
 161
 162         VT(R8G8B8A8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, WZYX),
 163         _T(R8G8B8X8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, WZYX),
 164         _T(R8G8B8A8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, WZYX),
 165         _T(R8G8B8X8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, WZYX),
 166         VT(R8G8B8A8_SNORM,   8_8_8_8_SNORM, R8G8B8A8_SNORM, WZYX),
 167         VT(R8G8B8A8_UINT,    8_8_8_8_UINT,  R8G8B8A8_UINT,  WZYX),
 168         VT(R8G8B8A8_SINT,    8_8_8_8_SINT,  R8G8B8A8_SINT,  WZYX),
 169         V_(R8G8B8A8_USCALED, 8_8_8_8_UINT,  NONE,           WZYX),
 170         V_(R8G8B8A8_SSCALED, 8_8_8_8_SINT,  NONE,           WZYX),
 171
 172         VT(B8G8R8A8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, WXYZ),
 173         _T(B8G8R8X8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, WXYZ),
 174         VT(B8G8R8A8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, WXYZ),
 175         _T(B8G8R8X8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, WXYZ),
 176
 177         VT(A8B8G8R8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, XYZW),
 178         _T(X8B8G8R8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, XYZW),
 179         _T(A8B8G8R8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, XYZW),
 180         _T(X8B8G8R8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, XYZW),
 181
 182         VT(A8R8G8B8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, ZYXW),
 183         _T(X8R8G8B8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, ZYXW),
 184         _T(A8R8G8B8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, ZYXW),
 185         _T(X8R8G8B8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, ZYXW),
 186
 187         VT(R10G10B10A2_UNORM,   10_10_10_2_UNORM, R10G10B10A2_UNORM, WZYX),
 188         VT(B10G10R10A2_UNORM,   10_10_10_2_UNORM, R10G10B10A2_UNORM, WXYZ),
 189         _T(B10G10R10X2_UNORM,   10_10_10_2_UNORM, R10G10B10A2_UNORM, WXYZ),
 190         V_(R10G10B10A2_SNORM,   10_10_10_2_SNORM, NONE,              WZYX),
 191         V_(B10G10R10A2_SNORM,   10_10_10_2_SNORM, NONE,              WXYZ),
 192         V_(R10G10B10A2_UINT,    10_10_10_2_UINT,  NONE,              WZYX),
 193         V_(B10G10R10A2_UINT,    10_10_10_2_UINT,  NONE,              WXYZ),
 194         V_(R10G10B10A2_USCALED, 10_10_10_2_UINT,  NONE,              WZYX),
 195         V_(B10G10R10A2_USCALED, 10_10_10_2_UINT,  NONE,              WXYZ),
 196         V_(R10G10B10A2_SSCALED, 10_10_10_2_SINT,  NONE,              WZYX),
 197         V_(B10G10R10A2_SSCALED, 10_10_10_2_SINT,  NONE,              WXYZ),
 198
 199         _T(R11G11B10_FLOAT, 11_11_10_FLOAT, R11G11B10_FLOAT, WZYX),
 200         _T(R9G9B9E5_FLOAT,  9_9_9_E5_FLOAT, NONE,            WZYX),
 201
 202         _T(Z24X8_UNORM,       X8Z24_UNORM, R8G8B8A8_UNORM, WZYX),
 203         _T(Z24_UNORM_S8_UINT, X8Z24_UNORM, R8G8B8A8_UNORM, WZYX),
 204         _T(Z32_FLOAT,         Z32_FLOAT,   R8G8B8A8_UNORM, WZYX),
 205         _T(Z32_FLOAT_S8X24_UINT, Z32_FLOAT,R8G8B8A8_UNORM, WZYX),
 206
 207         /* 48-bit */
 208         V_(R16G16B16_UNORM,   16_16_16_UNORM, NONE, WZYX),
 209         V_(R16G16B16_SNORM,   16_16_16_SNORM, NONE, WZYX),
 210         V_(R16G16B16_UINT,    16_16_16_UINT,  NONE, WZYX),
 211         V_(R16G16B16_SINT,    16_16_16_SINT,  NONE, WZYX),
 212         V_(R16G16B16_USCALED, 16_16_16_UINT,  NONE, WZYX),
 213         V_(R16G16B16_SSCALED, 16_16_16_SINT,  NONE, WZYX),
 214         V_(R16G16B16_FLOAT,   16_16_16_FLOAT, NONE, WZYX),
 215
 216         /* 64-bit */
 217         VT(R16G16B16A16_UNORM,   16_16_16_16_UNORM, NONE,               WZYX),
 218         VT(R16G16B16A16_SNORM,   16_16_16_16_SNORM, NONE,               WZYX),
 219         VT(R16G16B16A16_UINT,    16_16_16_16_UINT,  R16G16B16A16_UINT,  WZYX),
 220         _T(R16G16B16X16_UINT,    16_16_16_16_UINT,  R16G16B16A16_UINT,  WZYX),
 221         VT(R16G16B16A16_SINT,    16_16_16_16_SINT,  R16G16B16A16_SINT,  WZYX),
 222         _T(R16G16B16X16_SINT,    16_16_16_16_SINT,  R16G16B16A16_SINT,  WZYX),
 223         V_(R16G16B16A16_USCALED, 16_16_16_16_UINT,  NONE,               WZYX),
 224         V_(R16G16B16A16_SSCALED, 16_16_16_16_SINT,  NONE,               WZYX),
 225         VT(R16G16B16A16_FLOAT,   16_16_16_16_FLOAT, R16G16B16A16_FLOAT, WZYX),
 226         _T(R16G16B16X16_FLOAT,   16_16_16_16_FLOAT, R16G16B16A16_FLOAT, WZYX),
 227
 228         VT(R32G32_UINT,    32_32_UINT,  R32G32_UINT, WZYX),
 229         VT(R32G32_SINT,    32_32_SINT,  R32G32_SINT, WZYX),
 230         V_(R32G32_USCALED, 32_32_UINT,  NONE,        WZYX),
 231         V_(R32G32_SSCALED, 32_32_SINT,  NONE,        WZYX),
 232         VT(R32G32_FLOAT,   32_32_FLOAT, R32G32_FLOAT,WZYX),
 233         V_(R32G32_FIXED,   32_32_FIXED, NONE,        WZYX),
 234
 235         _T(L32A32_UINT,    32_32_UINT,  NONE,        WZYX),
 236         _T(L32A32_SINT,    32_32_SINT,  NONE,        WZYX),
 237
 238         /* 96-bit */
 239         V_(R32G32B32_UINT,    32_32_32_UINT,  NONE, WZYX),
 240         V_(R32G32B32_SINT,    32_32_32_SINT,  NONE, WZYX),
 241         V_(R32G32B32_USCALED, 32_32_32_UINT,  NONE, WZYX),
 242         V_(R32G32B32_SSCALED, 32_32_32_SINT,  NONE, WZYX),
 243         V_(R32G32B32_FLOAT,   32_32_32_FLOAT, NONE, WZYX),
 244         V_(R32G32B32_FIXED,   32_32_32_FIXED, NONE, WZYX),
 245
 246         /* 128-bit */
 247         VT(R32G32B32A32_UINT,    32_32_32_32_UINT,  R32G32B32A32_UINT,  WZYX),
 248         _T(R32G32B32X32_UINT,    32_32_32_32_UINT,  R32G32B32A32_UINT,  WZYX),
 249         VT(R32G32B32A32_SINT,    32_32_32_32_SINT,  R32G32B32A32_SINT,  WZYX),
 250         _T(R32G32B32X32_SINT,    32_32_32_32_SINT,  R32G32B32A32_SINT,  WZYX),
 251         V_(R32G32B32A32_USCALED, 32_32_32_32_UINT,  NONE,               WZYX),
 252         V_(R32G32B32A32_SSCALED, 32_32_32_32_SINT,  NONE,               WZYX),
 253         VT(R32G32B32A32_FLOAT,   32_32_32_32_FLOAT, R32G32B32A32_FLOAT, WZYX),
 254         _T(R32G32B32X32_FLOAT,   32_32_32_32_FLOAT, R32G32B32A32_FLOAT, WZYX),
 255         V_(R32G32B32A32_FIXED,   32_32_32_32_FIXED, NONE,               WZYX),
 256
 257         /* compressed */
 258         _T(ETC1_RGB8, ETC1, NONE, WZYX),
 259         _T(ETC2_RGB8, ETC2_RGB8, NONE, WZYX),
 260         _T(ETC2_SRGB8, ETC2_RGB8, NONE, WZYX),
 261         _T(ETC2_RGB8A1, ETC2_RGB8A1, NONE, WZYX),
 262         _T(ETC2_SRGB8A1, ETC2_RGB8A1, NONE, WZYX),
 263         _T(ETC2_RGBA8, ETC2_RGBA8, NONE, WZYX),
 264         _T(ETC2_SRGBA8, ETC2_RGBA8, NONE, WZYX),
 265         _T(ETC2_R11_UNORM, ETC2_R11_UNORM, NONE, WZYX),
 266         _T(ETC2_R11_SNORM, ETC2_R11_SNORM, NONE, WZYX),
 267         _T(ETC2_RG11_UNORM, ETC2_RG11_UNORM, NONE, WZYX),
 268         _T(ETC2_RG11_SNORM, ETC2_RG11_SNORM, NONE, WZYX),
 269
 270         _T(DXT1_RGB,   DXT1, NONE, WZYX),
 271         _T(DXT1_SRGB,  DXT1, NONE, WZYX),
 272         _T(DXT1_RGBA,  DXT1, NONE, WZYX),
 273         _T(DXT1_SRGBA, DXT1, NONE, WZYX),
 274         _T(DXT3_RGBA,  DXT3, NONE, WZYX),
 275         _T(DXT3_SRGBA, DXT3, NONE, WZYX),
 276         _T(DXT5_RGBA,  DXT5, NONE, WZYX),
 277         _T(DXT5_SRGBA, DXT5, NONE, WZYX),
 278
 279         /* faked */
 280         _T(RGTC1_UNORM, 8_8_8_8_UNORM, NONE, WZYX),
 281         _T(RGTC1_SNORM, 8_8_8_8_SNORM, NONE, WZYX),
 282         _T(RGTC2_UNORM, 8_8_8_8_UNORM, NONE, WZYX),
 283         _T(RGTC2_SNORM, 8_8_8_8_SNORM, NONE, WZYX),
 284         _T(LATC1_UNORM, 8_8_8_8_UNORM, NONE, WZYX),
 285         _T(LATC1_SNORM, 8_8_8_8_SNORM, NONE, WZYX),
 286         _T(LATC2_UNORM, 8_8_8_8_UNORM, NONE, WZYX),
 287         _T(LATC2_SNORM, 8_8_8_8_SNORM, NONE, WZYX),
 288
 289         _T(ATC_RGB,               ATC_RGB,               NONE, WZYX),
 290         _T(ATC_RGBA_EXPLICIT,     ATC_RGBA_EXPLICIT,     NONE, WZYX),
 291         _T(ATC_RGBA_INTERPOLATED, ATC_RGBA_INTERPOLATED, NONE, WZYX),
 292 };
 293
 294 enum a3xx_vtx_fmt
 295 fd3_pipe2vtx(enum pipe_format format)
 296 {
 297         if (!formats[format].present)
 298                 return ~0;
 299         return formats[format].vtx;
 300 }
 301
 302 enum a3xx_tex_fmt
 303 fd3_pipe2tex(enum pipe_format format)
 304 {
 305         if (!formats[format].present)
 306                 return ~0;
 307         return formats[format].tex;
 308 }
 309
 310 enum a3xx_color_fmt
 311 fd3_pipe2color(enum pipe_format format)
 312 {
 313         if (!formats[format].present)
 314                 return ~0;
 315         return formats[format].rb;
 316 }
 317
 318 enum a3xx_color_swap
 319 fd3_pipe2swap(enum pipe_format format)
 320 {
 321         if (!formats[format].present)
 322                 return WZYX;
 323         return formats[format].swap;
 324 }
 325
 326 enum a3xx_tex_fetchsize
 327 fd3_pipe2fetchsize(enum pipe_format format)
 328 {
 329         if (format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT)
 330                 format = PIPE_FORMAT_Z32_FLOAT;
 331         else if (util_format_description(format)->layout == UTIL_FORMAT_LAYOUT_RGTC)
 332                 format = PIPE_FORMAT_R8G8B8A8_UNORM;
 333         switch (util_format_get_blocksizebits(format) / util_format_get_blockwidth(format)) {
 334         case 8: return TFETCH_1_BYTE;
 335         case 16: return TFETCH_2_BYTE;
 336         case 32: return TFETCH_4_BYTE;
 337         case 64: return TFETCH_8_BYTE;
 338         case 128: return TFETCH_16_BYTE;
 339         default:
 340                 debug_printf("Unknown block size for format %s: %d\n",
 341                                          util_format_name(format),
 342                                          util_format_get_blocksizebits(format));
 343                 return TFETCH_DISABLE;
 344         }
 345 }
 346
 347 unsigned
 348 fd3_pipe2nblocksx(enum pipe_format format, unsigned width)
 349 {
 350         if (util_format_description(format)->layout == UTIL_FORMAT_LAYOUT_RGTC)
 351                 format = PIPE_FORMAT_R8G8B8A8_UNORM;
 352         return util_format_get_nblocksx(format, width);
 353 }
 354
 355 enum a3xx_color_fmt
 356 fd3_fs_output_format(enum pipe_format format)
 357 {
 358         if (util_format_is_srgb(format))
 359                 return RB_R16G16B16A16_FLOAT;
 360         switch (format) {
 361         case PIPE_FORMAT_R16_FLOAT:
 362         case PIPE_FORMAT_R16G16_FLOAT:
 363         case PIPE_FORMAT_R11G11B10_FLOAT:
 364                 return RB_R16G16B16A16_FLOAT;
 365         case PIPE_FORMAT_L8_UNORM:
 366                 return RB_R8G8B8A8_UNORM;
 367         default:
 368                 return fd3_pipe2color(format);
 369         }
 370 }
 371
 372 static inline enum a3xx_tex_swiz
 373 tex_swiz(unsigned swiz)
 374 {
 375         switch (swiz) {
 376         default:
 377         case PIPE_SWIZZLE_X: return A3XX_TEX_X;
 378         case PIPE_SWIZZLE_Y: return A3XX_TEX_Y;
 379         case PIPE_SWIZZLE_Z: return A3XX_TEX_Z;
 380         case PIPE_SWIZZLE_W: return A3XX_TEX_W;
 381         case PIPE_SWIZZLE_0: return A3XX_TEX_ZERO;
 382         case PIPE_SWIZZLE_1: return A3XX_TEX_ONE;
 383         }
 384 }
 385
 386 uint32_t
 387 fd3_tex_swiz(enum pipe_format format, unsigned swizzle_r, unsigned swizzle_g,
 388                 unsigned swizzle_b, unsigned swizzle_a)
 389 {
 390         const struct util_format_description *desc =
 391                         util_format_description(format);
 392         unsigned char swiz[4] = {
 393                         swizzle_r, swizzle_g, swizzle_b, swizzle_a,
 394         }, rswiz[4];
 395
 396         util_format_compose_swizzles(desc->swizzle, swiz, rswiz);
 397
 398         return A3XX_TEX_CONST_0_SWIZ_X(tex_swiz(rswiz[0])) |
 399                         A3XX_TEX_CONST_0_SWIZ_Y(tex_swiz(rswiz[1])) |
 400                         A3XX_TEX_CONST_0_SWIZ_Z(tex_swiz(rswiz[2])) |
 401                         A3XX_TEX_CONST_0_SWIZ_W(tex_swiz(rswiz[3]));
 402 }