src/gallium/drivers/lima/lima_format.c

   1 /*
   2  * Copyright (c) 2011-2013 Luc Verhaegen <libv@skynet.be>
   3  * Copyright (c) 2018-2019 Lima Project
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sub license,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial portions
  14  * of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  */
  25
  26 #include <stdlib.h>
  27
  28 #include <util/macros.h>
  29
  30 #include "lima_format.h"
  31
  32 #define LIMA_TEXEL_FORMAT_L8           0x09
  33 #define LIMA_TEXEL_FORMAT_A8           0x0a
  34 #define LIMA_TEXEL_FORMAT_I8           0x0b
  35 #define LIMA_TEXEL_FORMAT_BGR_565      0x0e
  36 #define LIMA_TEXEL_FORMAT_L8A8         0x11
  37 #define LIMA_TEXEL_FORMAT_L16          0x12
  38 #define LIMA_TEXEL_FORMAT_A16          0x13
  39 #define LIMA_TEXEL_FORMAT_I16          0x14
  40 #define LIMA_TEXEL_FORMAT_RGB_888      0x15
  41 #define LIMA_TEXEL_FORMAT_RGBA_8888    0x16
  42 #define LIMA_TEXEL_FORMAT_RGBX_8888    0x17
  43 #define LIMA_TEXEL_FORMAT_Z24S8        0x2c
  44 #define LIMA_TEXEL_FORMAT_NONE         -1
  45
  46 #define LIMA_PIXEL_FORMAT_B5G6R5       0x00
  47 #define LIMA_PIXEL_FORMAT_B8G8R8A8     0x03
  48 #define LIMA_PIXEL_FORMAT_Z16          0x0e
  49 #define LIMA_PIXEL_FORMAT_Z24S8        0x0f
  50 #define LIMA_PIXEL_FORMAT_NONE         -1
  51
  52 struct lima_format {
  53    bool present;
  54    int texel;
  55    int pixel;
  56    bool swap_r_b;
  57 };
  58
  59 #define LIMA_FORMAT(pipe, tex, pix, swap)                \
  60    [PIPE_FORMAT_##pipe] = {                              \
  61       .present = true, .texel = LIMA_TEXEL_FORMAT_##tex, \
  62       .pixel = LIMA_PIXEL_FORMAT_##pix, .swap_r_b = swap, \
  63    }
  64
  65 static const struct lima_format lima_format_table[] = {
  66    LIMA_FORMAT(R8G8B8A8_UNORM,     RGBA_8888, B8G8R8A8, true),
  67    LIMA_FORMAT(B8G8R8A8_UNORM,     RGBA_8888, B8G8R8A8, false),
  68    LIMA_FORMAT(R8G8B8A8_SRGB,      RGBA_8888, B8G8R8A8, true),
  69    LIMA_FORMAT(B8G8R8A8_SRGB,      RGBA_8888, B8G8R8A8, false),
  70    LIMA_FORMAT(R8G8B8X8_UNORM,     RGBX_8888, B8G8R8A8, true),
  71    LIMA_FORMAT(B8G8R8X8_UNORM,     RGBX_8888, B8G8R8A8, false),
  72    LIMA_FORMAT(R8G8B8_UNORM,       RGB_888,   NONE,     true),
  73    LIMA_FORMAT(B5G6R5_UNORM,       BGR_565,   B5G6R5,   false),
  74    LIMA_FORMAT(Z24_UNORM_S8_UINT,  Z24S8,     Z24S8,    false),
  75    LIMA_FORMAT(Z24X8_UNORM,        Z24S8,     Z24S8,    false),
  76    /* Blob uses L16 for Z16 */
  77    LIMA_FORMAT(Z16_UNORM,          L16,       Z16,      false),
  78    LIMA_FORMAT(L16_UNORM,          L16,       NONE,     false),
  79    LIMA_FORMAT(L8_UNORM,           L8,        NONE,     false),
  80    LIMA_FORMAT(A16_UNORM,          A16,       NONE,     false),
  81    LIMA_FORMAT(A8_UNORM,           A8,        NONE,     false),
  82    LIMA_FORMAT(I16_UNORM,          I16,       NONE,     false),
  83    LIMA_FORMAT(I8_UNORM,           I8,        NONE,     false),
  84    LIMA_FORMAT(L8A8_UNORM,         L8A8,      NONE,     false),
  85 };
  86
  87 static const struct lima_format *
  88 get_format(enum pipe_format f)
  89 {
  90    if (f >= ARRAY_SIZE(lima_format_table) ||
  91        !lima_format_table[f].present)
  92       return NULL;
  93
  94    return lima_format_table + f;
  95 }
  96
  97 bool
  98 lima_format_texel_supported(enum pipe_format f)
  99 {
 100    const struct lima_format *lf = get_format(f);
 101
 102    if (!lf)
 103       return false;
 104
 105    return lf->texel != LIMA_TEXEL_FORMAT_NONE;
 106 }
 107
 108 bool
 109 lima_format_pixel_supported(enum pipe_format f)
 110 {
 111    const struct lima_format *lf = get_format(f);
 112
 113    if (!lf)
 114       return false;
 115
 116    return lf->pixel != LIMA_PIXEL_FORMAT_NONE;
 117 }
 118
 119 int
 120 lima_format_get_texel(enum pipe_format f)
 121 {
 122    return lima_format_table[f].texel;
 123 }
 124
 125 int
 126 lima_format_get_pixel(enum pipe_format f)
 127 {
 128    return lima_format_table[f].pixel;
 129 }
 130
 131 bool
 132 lima_format_get_swap_rb(enum pipe_format f)
 133 {
 134    return lima_format_table[f].swap_r_b;
 135 }