src/gallium/drivers/etnaviv/etnaviv_format.c

   1 /*
   2  * Copyright (c) 2016 Etnaviv Project
   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, sub license,
   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
  12  * next paragraph) shall be included in all copies or substantial portions
  13  * of the 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 NON-INFRINGEMENT. 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
  21  * DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *    Christian Gmeiner <christian.gmeiner@gmail.com>
  25  */
  26
  27 #include "etnaviv_format.h"
  28
  29 #include "hw/state.xml.h"
  30 #include "hw/state_3d.xml.h"
  31
  32 #include "pipe/p_defines.h"
  33
  34 /* Specifies the table of all the formats and their features. Also supplies
  35  * the helpers that look up various data in those tables.
  36  */
  37
  38 struct etna_format {
  39    unsigned vtx;
  40    unsigned tex;
  41    unsigned rs;
  42    boolean present;
  43 };
  44
  45 #define RS_FORMAT_NONE ~0
  46
  47 #define RS_FORMAT_MASK        0xf
  48 #define RS_FORMAT(x)          ((x) & RS_FORMAT_MASK)
  49 #define RS_FORMAT_RB_SWAP     0x10
  50
  51 #define RS_FORMAT_X8B8G8R8    (RS_FORMAT_X8R8G8B8 | RS_FORMAT_RB_SWAP)
  52 #define RS_FORMAT_A8B8G8R8    (RS_FORMAT_A8R8G8B8 | RS_FORMAT_RB_SWAP)
  53
  54 /* vertex + texture */
  55 #define VT(pipe, vtxfmt, texfmt, rsfmt)                   \
  56    [PIPE_FORMAT_##pipe] = {                               \
  57       .vtx = VIVS_FE_VERTEX_ELEMENT_CONFIG_TYPE_##vtxfmt, \
  58       .tex = TEXTURE_FORMAT_##texfmt,                     \
  59       .rs = RS_FORMAT_##rsfmt,                            \
  60       .present = 1,                                       \
  61    }
  62
  63 /* texture-only */
  64 #define _T(pipe, fmt, rsfmt)       \
  65    [PIPE_FORMAT_##pipe] = {        \
  66       .vtx = ETNA_NO_MATCH,        \
  67       .tex = TEXTURE_FORMAT_##fmt, \
  68       .rs = RS_FORMAT_##rsfmt,     \
  69       .present = 1,                \
  70    }
  71
  72 /* vertex-only */
  73 #define V_(pipe, fmt, rsfmt)                           \
  74    [PIPE_FORMAT_##pipe] = {                            \
  75       .vtx = VIVS_FE_VERTEX_ELEMENT_CONFIG_TYPE_##fmt, \
  76       .tex = ETNA_NO_MATCH,                            \
  77       .rs = RS_FORMAT_##rsfmt,                         \
  78       .present = 1,                                    \
  79    }
  80
  81 static struct etna_format formats[PIPE_FORMAT_COUNT] = {
  82    /* 8-bit */
  83    V_(R8_UNORM,   UNSIGNED_BYTE, NONE),
  84    V_(R8_SNORM,   BYTE,          NONE),
  85    V_(R8_UINT,    UNSIGNED_BYTE, NONE),
  86    V_(R8_SINT,    BYTE,          NONE),
  87    V_(R8_USCALED, UNSIGNED_BYTE, NONE),
  88    V_(R8_SSCALED, BYTE,          NONE),
  89
  90    _T(A8_UNORM, A8, NONE),
  91    _T(L8_UNORM, L8, NONE),
  92    _T(I8_UNORM, I8, NONE),
  93
  94    /* 16-bit */
  95    V_(R16_UNORM,   UNSIGNED_SHORT, NONE),
  96    V_(R16_SNORM,   SHORT,          NONE),
  97    V_(R16_UINT,    UNSIGNED_SHORT, NONE),
  98    V_(R16_SINT,    SHORT,          NONE),
  99    V_(R16_USCALED, UNSIGNED_SHORT, NONE),
 100    V_(R16_SSCALED, SHORT,          NONE),
 101    V_(R16_FLOAT,   HALF_FLOAT,     NONE),
 102
 103    _T(B4G4R4A4_UNORM, A4R4G4B4, A4R4G4B4),
 104    _T(B4G4R4X4_UNORM, X4R4G4B4, X4R4G4B4),
 105
 106    _T(L8A8_UNORM, A8L8, NONE),
 107
 108    _T(Z16_UNORM,      D16,      A4R4G4B4),
 109    _T(B5G6R5_UNORM,   R5G6B5,   R5G6B5),
 110    _T(B5G5R5A1_UNORM, A1R5G5B5, A1R5G5B5),
 111    _T(B5G5R5X1_UNORM, X1R5G5B5, X1R5G5B5),
 112
 113    V_(R8G8_UNORM,   UNSIGNED_BYTE,  NONE),
 114    V_(R8G8_SNORM,   BYTE,           NONE),
 115    V_(R8G8_UINT,    UNSIGNED_BYTE,  NONE),
 116    V_(R8G8_SINT,    BYTE,           NONE),
 117    V_(R8G8_USCALED, UNSIGNED_BYTE,  NONE),
 118    V_(R8G8_SSCALED, BYTE,           NONE),
 119
 120    /* 24-bit */
 121    V_(R8G8B8_UNORM,   UNSIGNED_BYTE, NONE),
 122    V_(R8G8B8_SNORM,   BYTE,          NONE),
 123    V_(R8G8B8_UINT,    UNSIGNED_BYTE, NONE),
 124    V_(R8G8B8_SINT,    BYTE,          NONE),
 125    V_(R8G8B8_USCALED, UNSIGNED_BYTE, NONE),
 126    V_(R8G8B8_SSCALED, BYTE,          NONE),
 127
 128    /* 32-bit */
 129    V_(R32_UNORM,   UNSIGNED_INT, NONE),
 130    V_(R32_SNORM,   INT,          NONE),
 131    V_(R32_SINT,    INT,          NONE),
 132    V_(R32_UINT,    UNSIGNED_INT, NONE),
 133    V_(R32_USCALED, UNSIGNED_INT, NONE),
 134    V_(R32_SSCALED, INT,          NONE),
 135    V_(R32_FLOAT,   FLOAT,        NONE),
 136    V_(R32_FIXED,   FIXED,        NONE),
 137
 138    V_(R16G16_UNORM,   UNSIGNED_SHORT, NONE),
 139    V_(R16G16_SNORM,   SHORT,          NONE),
 140    V_(R16G16_UINT,    UNSIGNED_SHORT, NONE),
 141    V_(R16G16_SINT,    SHORT,          NONE),
 142    V_(R16G16_USCALED, UNSIGNED_SHORT, NONE),
 143    V_(R16G16_SSCALED, SHORT,          NONE),
 144    V_(R16G16_FLOAT,   HALF_FLOAT,     NONE),
 145
 146    V_(A8B8G8R8_UNORM,   UNSIGNED_BYTE, NONE),
 147
 148    V_(R8G8B8A8_UNORM,   UNSIGNED_BYTE, A8B8G8R8),
 149    V_(R8G8B8A8_SNORM,   BYTE,          A8B8G8R8),
 150    _T(R8G8B8X8_UNORM,   X8B8G8R8,      X8B8G8R8),
 151    V_(R8G8B8A8_UINT,    UNSIGNED_BYTE, A8B8G8R8),
 152    V_(R8G8B8A8_SINT,    BYTE,          A8B8G8R8),
 153    V_(R8G8B8A8_USCALED, UNSIGNED_BYTE, A8B8G8R8),
 154    V_(R8G8B8A8_SSCALED, BYTE,          A8B8G8R8),
 155
 156    _T(R8G8B8A8_UNORM, A8B8G8R8, A8B8G8R8),
 157    _T(R8G8B8X8_UNORM, X8B8G8R8, X8B8G8R8),
 158
 159    _T(B8G8R8A8_UNORM, A8R8G8B8, A8R8G8B8),
 160    _T(B8G8R8X8_UNORM, X8R8G8B8, X8R8G8B8),
 161
 162    V_(R10G10B10A2_UNORM,   UNSIGNED_INT_10_10_10_2, NONE),
 163    V_(R10G10B10A2_SNORM,   INT_10_10_10_2,          NONE),
 164    V_(R10G10B10A2_USCALED, UNSIGNED_INT_10_10_10_2, NONE),
 165    V_(R10G10B10A2_SSCALED, INT_10_10_10_2,          NONE),
 166
 167    _T(X8Z24_UNORM,       D24S8, A8R8G8B8),
 168    _T(S8_UINT_Z24_UNORM, D24S8, A8R8G8B8),
 169
 170    /* 48-bit */
 171    V_(R16G16B16_UNORM,   UNSIGNED_SHORT, NONE),
 172    V_(R16G16B16_SNORM,   SHORT,          NONE),
 173    V_(R16G16B16_UINT,    UNSIGNED_SHORT, NONE),
 174    V_(R16G16B16_SINT,    SHORT,          NONE),
 175    V_(R16G16B16_USCALED, UNSIGNED_SHORT, NONE),
 176    V_(R16G16B16_SSCALED, SHORT,          NONE),
 177    V_(R16G16B16_FLOAT,   HALF_FLOAT,     NONE),
 178
 179    /* 64-bit */
 180    V_(R16G16B16A16_UNORM,   UNSIGNED_SHORT, NONE),
 181    V_(R16G16B16A16_SNORM,   SHORT,          NONE),
 182    V_(R16G16B16A16_UINT,    UNSIGNED_SHORT, NONE),
 183    V_(R16G16B16A16_SINT,    SHORT,          NONE),
 184    V_(R16G16B16A16_USCALED, UNSIGNED_SHORT, NONE),
 185    V_(R16G16B16A16_SSCALED, SHORT,          NONE),
 186    V_(R16G16B16A16_FLOAT,   HALF_FLOAT,     NONE),
 187
 188    V_(R32G32_UNORM,   UNSIGNED_INT, NONE),
 189    V_(R32G32_SNORM,   INT,          NONE),
 190    V_(R32G32_UINT,    UNSIGNED_INT, NONE),
 191    V_(R32G32_SINT,    INT,          NONE),
 192    V_(R32G32_USCALED, UNSIGNED_INT, NONE),
 193    V_(R32G32_SSCALED, INT,          NONE),
 194    V_(R32G32_FLOAT,   FLOAT,        NONE),
 195    V_(R32G32_FIXED,   FIXED,        NONE),
 196
 197    /* 96-bit */
 198    V_(R32G32B32_UNORM,   UNSIGNED_INT, NONE),
 199    V_(R32G32B32_SNORM,   INT,          NONE),
 200    V_(R32G32B32_UINT,    UNSIGNED_INT, NONE),
 201    V_(R32G32B32_SINT,    INT,          NONE),
 202    V_(R32G32B32_USCALED, UNSIGNED_INT, NONE),
 203    V_(R32G32B32_SSCALED, INT,          NONE),
 204    V_(R32G32B32_FLOAT,   FLOAT,        NONE),
 205    V_(R32G32B32_FIXED,   FIXED,        NONE),
 206
 207    /* 128-bit */
 208    V_(R32G32B32A32_UNORM,   UNSIGNED_INT, NONE),
 209    V_(R32G32B32A32_SNORM,   INT,          NONE),
 210    V_(R32G32B32A32_UINT,    UNSIGNED_INT, NONE),
 211    V_(R32G32B32A32_SINT,    INT,          NONE),
 212    V_(R32G32B32A32_USCALED, UNSIGNED_INT, NONE),
 213    V_(R32G32B32A32_SSCALED, INT,          NONE),
 214    V_(R32G32B32A32_FLOAT,   FLOAT,        NONE),
 215    V_(R32G32B32A32_FIXED,   FIXED,        NONE),
 216
 217    /* compressed */
 218    _T(ETC1_RGB8, ETC1, NONE),
 219
 220    _T(DXT1_RGB,  DXT1,      NONE),
 221    _T(DXT1_RGBA, DXT1,      NONE),
 222    _T(DXT3_RGBA, DXT2_DXT3, NONE),
 223    _T(DXT3_RGBA, DXT2_DXT3, NONE),
 224    _T(DXT5_RGBA, DXT4_DXT5, NONE),
 225
 226    /* YUV */
 227    _T(YUYV, YUY2, YUY2),
 228    _T(UYVY, UYVY, NONE),
 229 };
 230
 231 uint32_t
 232 translate_texture_format(enum pipe_format fmt)
 233 {
 234    /* XXX with TEXTURE_FORMAT_EXT and swizzle on newer chips we can
 235     * support much more */
 236    if (!formats[fmt].present)
 237       return ETNA_NO_MATCH;
 238
 239    return formats[fmt].tex;
 240 }
 241
 242 uint32_t
 243 translate_rs_format(enum pipe_format fmt)
 244 {
 245    if (!formats[fmt].present)
 246       return ETNA_NO_MATCH;
 247
 248    if (formats[fmt].rs == ETNA_NO_MATCH)
 249       return ETNA_NO_MATCH;
 250
 251    return RS_FORMAT(formats[fmt].rs);
 252 }
 253
 254 int
 255 translate_rs_format_rb_swap(enum pipe_format fmt)
 256 {
 257    assert(formats[fmt].present);
 258
 259    return formats[fmt].rs & RS_FORMAT_RB_SWAP;
 260 }
 261
 262 /* Return type flags for vertex element format */
 263 uint32_t
 264 translate_vertex_format_type(enum pipe_format fmt)
 265 {
 266    if (!formats[fmt].present)
 267       return ETNA_NO_MATCH;
 268
 269    return formats[fmt].vtx;
 270 }