| 1 | |
| 2 | * Copyright (c) 2016 Laurent Pinchart <[email protected]>
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| 3 | *
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| 4 | * DRM core format related functions
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| 5 | *
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| 6 | * Permission to use, copy, modify, distribute, and sell this software and its
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| 7 | * documentation for any purpose is hereby granted without fee, provided that
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| 8 | * the above copyright notice appear in all copies and that both that copyright
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| 9 | * notice and this permission notice appear in supporting documentation, and
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| 10 | * that the name of the copyright holders not be used in advertising or
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| 11 | * publicity pertaining to distribution of the software without specific,
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| 12 | * written prior permission. The copyright holders make no representations
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| 13 | * about the suitability of this software for any purpose. It is provided "as
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| 14 | * is" without express or implied warranty.
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| 15 | *
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| 16 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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| 17 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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| 18 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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| 19 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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| 20 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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| 21 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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| 22 | * OF THIS SOFTWARE.
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| 23 |
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| 24 |
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| 25 | #include <linux/bug.h>
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| 26 | #include <linux/ctype.h>
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| 27 | #include <linux/export.h>
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| 28 | #include <linux/kernel.h>
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| 29 |
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| 30 | #include <drm/drm_device.h>
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| 31 | #include <drm/drm_fourcc.h>
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| 32 |
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| 33 | |
| 34 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description
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| 35 | * @bpp: bits per pixels
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| 36 | * @depth: bit depth per pixel
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| 37 | *
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| 38 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values.
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| 39 |
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| 40 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
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| 41 | {
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| 42 | uint32_t fmt = DRM_FORMAT_INVALID;
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| 43 |
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| 44 | switch (bpp) {
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| 45 | case 1:
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| 46 | if (depth == 1)
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| 47 | fmt = DRM_FORMAT_C1;
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| 48 | break;
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| 49 |
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| 50 | case 2:
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| 51 | if (depth == 2)
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| 52 | fmt = DRM_FORMAT_C2;
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| 53 | break;
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| 54 |
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| 55 | case 4:
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| 56 | if (depth == 4)
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| 57 | fmt = DRM_FORMAT_C4;
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| 58 | break;
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| 59 |
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| 60 | case 8:
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| 61 | if (depth == 8)
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| 62 | fmt = DRM_FORMAT_C8;
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| 63 | break;
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| 64 |
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| 65 | case 16:
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| 66 | switch (depth) {
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| 67 | case 15:
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| 68 | fmt = DRM_FORMAT_XRGB1555;
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| 69 | break;
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| 70 | case 16:
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| 71 | fmt = DRM_FORMAT_RGB565;
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| 72 | break;
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| 73 | default:
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| 74 | break;
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| 75 | }
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| 76 | break;
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| 77 |
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| 78 | case 24:
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| 79 | if (depth == 24)
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| 80 | fmt = DRM_FORMAT_RGB888;
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| 81 | break;
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| 82 |
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| 83 | case 32:
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| 84 | switch (depth) {
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| 85 | case 24:
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| 86 | fmt = DRM_FORMAT_XRGB8888;
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| 87 | break;
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| 88 | case 30:
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| 89 | fmt = DRM_FORMAT_XRGB2101010;
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| 90 | break;
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| 91 | case 32:
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| 92 | fmt = DRM_FORMAT_ARGB8888;
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| 93 | break;
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| 94 | default:
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| 95 | break;
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| 96 | }
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| 97 | break;
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| 98 |
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| 99 | default:
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| 100 | break;
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| 101 | }
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| 102 |
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| 103 | return fmt;
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| 104 | }
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| 105 | EXPORT_SYMBOL(drm_mode_legacy_fb_format);
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| 106 |
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| 107 | |
| 108 | * drm_driver_legacy_fb_format - compute drm fourcc code from legacy description
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| 109 | * @dev: DRM device
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| 110 | * @bpp: bits per pixels
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| 111 | * @depth: bit depth per pixel
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| 112 | *
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| 113 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values.
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| 114 | * Unlike drm_mode_legacy_fb_format() this looks at the drivers mode_config,
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| 115 | * and depending on the &drm_mode_config.quirk_addfb_prefer_host_byte_order flag
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| 116 | * it returns little endian byte order or host byte order framebuffer formats.
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| 117 |
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| 118 | uint32_t drm_driver_legacy_fb_format(struct drm_device *dev,
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| 119 | uint32_t bpp, uint32_t depth)
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| 120 | {
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| 121 | uint32_t fmt = drm_mode_legacy_fb_format(bpp, depth);
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| 122 |
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| 123 | if (dev->mode_config.quirk_addfb_prefer_host_byte_order) {
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| 124 | if (fmt == DRM_FORMAT_XRGB8888)
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| 125 | fmt = DRM_FORMAT_HOST_XRGB8888;
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| 126 | if (fmt == DRM_FORMAT_ARGB8888)
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| 127 | fmt = DRM_FORMAT_HOST_ARGB8888;
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| 128 | if (fmt == DRM_FORMAT_RGB565)
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| 129 | fmt = DRM_FORMAT_HOST_RGB565;
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| 130 | if (fmt == DRM_FORMAT_XRGB1555)
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| 131 | fmt = DRM_FORMAT_HOST_XRGB1555;
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| 132 | }
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| 133 |
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| 134 | if (dev->mode_config.quirk_addfb_prefer_xbgr_30bpp &&
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| 135 | fmt == DRM_FORMAT_XRGB2101010)
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| 136 | fmt = DRM_FORMAT_XBGR2101010;
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| 137 |
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| 138 | return fmt;
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| 139 | }
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| 140 | EXPORT_SYMBOL(drm_driver_legacy_fb_format);
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| 141 |
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| 142 | |
| 143 | * drm_driver_color_mode_format - Compute DRM 4CC code from color mode
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| 144 | * @dev: DRM device
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| 145 | * @color_mode: command-line color mode
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| 146 | *
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| 147 | * Computes a DRM 4CC pixel format code for the given color mode using
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| 148 | * drm_driver_color_mode(). The color mode is in the format used and the
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| 149 | * kernel command line. It specifies the number of bits per pixel
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| 150 | * and color depth in a single value.
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| 151 | *
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| 152 | * Useful in fbdev emulation code, since that deals in those values. The
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| 153 | * helper does not consider YUV or other complicated formats. This means
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| 154 | * only legacy formats are supported (fmt->depth is a legacy field), but
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| 155 | * the framebuffer emulation can only deal with such formats, specifically
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| 156 | * RGB/BGA formats.
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| 157 |
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| 158 | uint32_t drm_driver_color_mode_format(struct drm_device *dev, unsigned int color_mode)
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| 159 | {
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| 160 | switch (color_mode) {
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| 161 | case 15:
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| 162 | return drm_driver_legacy_fb_format(dev, 16, 15);
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| 163 | case 32:
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| 164 | return drm_driver_legacy_fb_format(dev, 32, 24);
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| 165 | default:
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| 166 | return drm_driver_legacy_fb_format(dev, color_mode, color_mode);
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| 167 | }
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| 168 | }
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| 169 | EXPORT_SYMBOL(drm_driver_color_mode_format);
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| 170 |
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| 171 | |
| 172 | * Internal function to query information for a given format. See
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| 173 | * drm_format_info() for the public API.
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| 174 |
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| 175 | const struct drm_format_info *__drm_format_info(u32 format)
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| 176 | {
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| 177 | static const struct drm_format_info formats[] = {
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| 178 | { .format = DRM_FORMAT_C1, .depth = 1, .num_planes = 1,
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| 179 | .char_per_block = { 1, }, .block_w = { 8, }, .block_h = { 1, }, .hsub = 1, .vsub = 1, .is_color_indexed = true },
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| 180 | { .format = DRM_FORMAT_C2, .depth = 2, .num_planes = 1,
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| 181 | .char_per_block = { 1, }, .block_w = { 4, }, .block_h = { 1, }, .hsub = 1, .vsub = 1, .is_color_indexed = true },
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| 182 | { .format = DRM_FORMAT_C4, .depth = 4, .num_planes = 1,
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| 183 | .char_per_block = { 1, }, .block_w = { 2, }, .block_h = { 1, }, .hsub = 1, .vsub = 1, .is_color_indexed = true },
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| 184 | { .format = DRM_FORMAT_C8, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1, .is_color_indexed = true },
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| 185 | { .format = DRM_FORMAT_D1, .depth = 1, .num_planes = 1,
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| 186 | .char_per_block = { 1, }, .block_w = { 8, }, .block_h = { 1, }, .hsub = 1, .vsub = 1 },
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| 187 | { .format = DRM_FORMAT_D2, .depth = 2, .num_planes = 1,
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| 188 | .char_per_block = { 1, }, .block_w = { 4, }, .block_h = { 1, }, .hsub = 1, .vsub = 1 },
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| 189 | { .format = DRM_FORMAT_D4, .depth = 4, .num_planes = 1,
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| 190 | .char_per_block = { 1, }, .block_w = { 2, }, .block_h = { 1, }, .hsub = 1, .vsub = 1 },
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| 191 | { .format = DRM_FORMAT_D8, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 192 | { .format = DRM_FORMAT_R1, .depth = 1, .num_planes = 1,
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| 193 | .char_per_block = { 1, }, .block_w = { 8, }, .block_h = { 1, }, .hsub = 1, .vsub = 1 },
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| 194 | { .format = DRM_FORMAT_R2, .depth = 2, .num_planes = 1,
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| 195 | .char_per_block = { 1, }, .block_w = { 4, }, .block_h = { 1, }, .hsub = 1, .vsub = 1 },
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| 196 | { .format = DRM_FORMAT_R4, .depth = 4, .num_planes = 1,
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| 197 | .char_per_block = { 1, }, .block_w = { 2, }, .block_h = { 1, }, .hsub = 1, .vsub = 1 },
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| 198 | { .format = DRM_FORMAT_R8, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 199 | { .format = DRM_FORMAT_R10, .depth = 10, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 200 | { .format = DRM_FORMAT_R12, .depth = 12, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 201 | { .format = DRM_FORMAT_RGB332, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 202 | { .format = DRM_FORMAT_BGR233, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 203 | { .format = DRM_FORMAT_XRGB4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 204 | { .format = DRM_FORMAT_XBGR4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 205 | { .format = DRM_FORMAT_RGBX4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 206 | { .format = DRM_FORMAT_BGRX4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 207 | { .format = DRM_FORMAT_ARGB4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 208 | { .format = DRM_FORMAT_ABGR4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 209 | { .format = DRM_FORMAT_RGBA4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 210 | { .format = DRM_FORMAT_BGRA4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 211 | { .format = DRM_FORMAT_XRGB1555, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 212 | { .format = DRM_FORMAT_XBGR1555, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 213 | { .format = DRM_FORMAT_RGBX5551, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 214 | { .format = DRM_FORMAT_BGRX5551, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 215 | { .format = DRM_FORMAT_ARGB1555, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 216 | { .format = DRM_FORMAT_ABGR1555, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 217 | { .format = DRM_FORMAT_RGBA5551, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 218 | { .format = DRM_FORMAT_BGRA5551, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 219 | { .format = DRM_FORMAT_RGB565, .depth = 16, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 220 | { .format = DRM_FORMAT_BGR565, .depth = 16, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 221 | #ifdef __BIG_ENDIAN
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| 222 | { .format = DRM_FORMAT_XRGB1555 | DRM_FORMAT_BIG_ENDIAN, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 223 | { .format = DRM_FORMAT_RGB565 | DRM_FORMAT_BIG_ENDIAN, .depth = 16, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 224 | #endif
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| 225 | { .format = DRM_FORMAT_RGB888, .depth = 24, .num_planes = 1, .cpp = { 3, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 226 | { .format = DRM_FORMAT_BGR888, .depth = 24, .num_planes = 1, .cpp = { 3, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 227 | { .format = DRM_FORMAT_XRGB8888, .depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 228 | { .format = DRM_FORMAT_XBGR8888, .depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 229 | { .format = DRM_FORMAT_RGBX8888, .depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 230 | { .format = DRM_FORMAT_BGRX8888, .depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 231 | { .format = DRM_FORMAT_RGB565_A8, .depth = 24, .num_planes = 2, .cpp = { 2, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 232 | { .format = DRM_FORMAT_BGR565_A8, .depth = 24, .num_planes = 2, .cpp = { 2, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 233 | { .format = DRM_FORMAT_XRGB2101010, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 234 | { .format = DRM_FORMAT_XBGR2101010, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 235 | { .format = DRM_FORMAT_RGBX1010102, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 236 | { .format = DRM_FORMAT_BGRX1010102, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 237 | { .format = DRM_FORMAT_ARGB2101010, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 238 | { .format = DRM_FORMAT_ABGR2101010, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 239 | { .format = DRM_FORMAT_RGBA1010102, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 240 | { .format = DRM_FORMAT_BGRA1010102, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 241 | { .format = DRM_FORMAT_RGB161616, .depth = 0,
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| 242 | .num_planes = 1, .char_per_block = { 6, 0, 0 },
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| 243 | .block_w = { 1, 0, 0 }, .block_h = { 1, 0, 0 },
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| 244 | .hsub = 1, .vsub = 1, .has_alpha = false },
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| 245 | { .format = DRM_FORMAT_BGR161616, .depth = 0,
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| 246 | .num_planes = 1, .char_per_block = { 6, 0, 0 },
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| 247 | .block_w = { 1, 0, 0 }, .block_h = { 1, 0, 0 },
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| 248 | .hsub = 1, .vsub = 1, .has_alpha = false },
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| 249 | { .format = DRM_FORMAT_ARGB8888, .depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 250 | { .format = DRM_FORMAT_ABGR8888, .depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 251 | { .format = DRM_FORMAT_RGBA8888, .depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 252 | { .format = DRM_FORMAT_BGRA8888, .depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 253 | { .format = DRM_FORMAT_XRGB16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 254 | { .format = DRM_FORMAT_XBGR16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 255 | { .format = DRM_FORMAT_ARGB16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 256 | { .format = DRM_FORMAT_ABGR16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 257 | { .format = DRM_FORMAT_AXBXGXRX106106106106, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 258 | { .format = DRM_FORMAT_XRGB16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 259 | { .format = DRM_FORMAT_XBGR16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 260 | { .format = DRM_FORMAT_ARGB16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 261 | { .format = DRM_FORMAT_ABGR16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 262 | { .format = DRM_FORMAT_RGB888_A8, .depth = 32, .num_planes = 2, .cpp = { 3, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 263 | { .format = DRM_FORMAT_BGR888_A8, .depth = 32, .num_planes = 2, .cpp = { 3, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 264 | { .format = DRM_FORMAT_XRGB8888_A8, .depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 265 | { .format = DRM_FORMAT_XBGR8888_A8, .depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 266 | { .format = DRM_FORMAT_RGBX8888_A8, .depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 267 | { .format = DRM_FORMAT_BGRX8888_A8, .depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 268 | { .format = DRM_FORMAT_YUV410, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 4, .is_yuv = true },
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| 269 | { .format = DRM_FORMAT_YVU410, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 4, .is_yuv = true },
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| 270 | { .format = DRM_FORMAT_YUV411, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 1, .is_yuv = true },
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| 271 | { .format = DRM_FORMAT_YVU411, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 1, .is_yuv = true },
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| 272 | { .format = DRM_FORMAT_YUV420, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 2, .is_yuv = true },
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| 273 | { .format = DRM_FORMAT_YVU420, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 2, .is_yuv = true },
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| 274 | { .format = DRM_FORMAT_YUV422, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 1, .is_yuv = true },
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| 275 | { .format = DRM_FORMAT_YVU422, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 1, .is_yuv = true },
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| 276 | { .format = DRM_FORMAT_YUV444, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 1, .vsub = 1, .is_yuv = true },
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| 277 | { .format = DRM_FORMAT_YVU444, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 1, .vsub = 1, .is_yuv = true },
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| 278 | { .format = DRM_FORMAT_Y8, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
|
| 279 | { .format = DRM_FORMAT_NV12, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
|
| 280 | { .format = DRM_FORMAT_NV21, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
|
| 281 | { .format = DRM_FORMAT_NV16, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
|
| 282 | { .format = DRM_FORMAT_NV61, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
|
| 283 | { .format = DRM_FORMAT_NV24, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
|
| 284 | { .format = DRM_FORMAT_NV42, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
|
| 285 | { .format = DRM_FORMAT_YUYV, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
|
| 286 | { .format = DRM_FORMAT_YVYU, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
|
| 287 | { .format = DRM_FORMAT_UYVY, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
|
| 288 | { .format = DRM_FORMAT_VYUY, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
|
| 289 | { .format = DRM_FORMAT_XYUV8888, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
|
| 290 | { .format = DRM_FORMAT_VUY888, .depth = 0, .num_planes = 1, .cpp = { 3, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
|
| 291 | { .format = DRM_FORMAT_XVUY2101010, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
|
| 292 | { .format = DRM_FORMAT_AYUV, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
|
| 293 | { .format = DRM_FORMAT_Y210, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
|
| 294 | { .format = DRM_FORMAT_Y212, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
|
| 295 | { .format = DRM_FORMAT_Y216, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
|
| 296 | { .format = DRM_FORMAT_Y410, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
|
| 297 | { .format = DRM_FORMAT_Y412, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
|
| 298 | { .format = DRM_FORMAT_Y416, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
|
| 299 | { .format = DRM_FORMAT_XVYU2101010, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
|
| 300 | { .format = DRM_FORMAT_XVYU12_16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
|
| 301 | { .format = DRM_FORMAT_XVYU16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
|
| 302 | { .format = DRM_FORMAT_Y0L0, .depth = 0, .num_planes = 1,
|
| 303 | .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
|
| 304 | .hsub = 2, .vsub = 2, .has_alpha = true, .is_yuv = true },
|
| 305 | { .format = DRM_FORMAT_X0L0, .depth = 0, .num_planes = 1,
|
| 306 | .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
|
| 307 | .hsub = 2, .vsub = 2, .is_yuv = true },
|
| 308 | { .format = DRM_FORMAT_Y0L2, .depth = 0, .num_planes = 1,
|
| 309 | .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
|
| 310 | .hsub = 2, .vsub = 2, .has_alpha = true, .is_yuv = true },
|
| 311 | { .format = DRM_FORMAT_X0L2, .depth = 0, .num_planes = 1,
|
| 312 | .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
|
| 313 | .hsub = 2, .vsub = 2, .is_yuv = true },
|
| 314 | { .format = DRM_FORMAT_P010, .depth = 0, .num_planes = 2,
|
| 315 | .char_per_block = { 2, 4, 0 }, .block_w = { 1, 1, 0 }, .block_h = { 1, 1, 0 },
|
| 316 | .hsub = 2, .vsub = 2, .is_yuv = true},
|
| 317 | { .format = DRM_FORMAT_P012, .depth = 0, .num_planes = 2,
|
| 318 | .char_per_block = { 2, 4, 0 }, .block_w = { 1, 1, 0 }, .block_h = { 1, 1, 0 },
|
| 319 | .hsub = 2, .vsub = 2, .is_yuv = true},
|
| 320 | { .format = DRM_FORMAT_P016, .depth = 0, .num_planes = 2,
|
| 321 | .char_per_block = { 2, 4, 0 }, .block_w = { 1, 1, 0 }, .block_h = { 1, 1, 0 },
|
| 322 | .hsub = 2, .vsub = 2, .is_yuv = true},
|
| 323 | { .format = DRM_FORMAT_P210, .depth = 0,
|
| 324 | .num_planes = 2, .char_per_block = { 2, 4, 0 },
|
| 325 | .block_w = { 1, 1, 0 }, .block_h = { 1, 1, 0 }, .hsub = 2,
|
| 326 | .vsub = 1, .is_yuv = true },
|
| 327 | { .format = DRM_FORMAT_VUY101010, .depth = 0,
|
| 328 | .num_planes = 1, .cpp = { 0, 0, 0 }, .hsub = 1, .vsub = 1,
|
| 329 | .is_yuv = true },
|
| 330 | { .format = DRM_FORMAT_YUV420_8BIT, .depth = 0,
|
| 331 | .num_planes = 1, .cpp = { 0, 0, 0 }, .hsub = 2, .vsub = 2,
|
| 332 | .is_yuv = true },
|
| 333 | { .format = DRM_FORMAT_YUV420_10BIT, .depth = 0,
|
| 334 | .num_planes = 1, .cpp = { 0, 0, 0 }, .hsub = 2, .vsub = 2,
|
| 335 | .is_yuv = true },
|
| 336 | { .format = DRM_FORMAT_NV15, .depth = 0,
|
| 337 | .num_planes = 2, .char_per_block = { 5, 5, 0 },
|
| 338 | .block_w = { 4, 2, 0 }, .block_h = { 1, 1, 0 }, .hsub = 2,
|
| 339 | .vsub = 2, .is_yuv = true },
|
| 340 | { .format = DRM_FORMAT_NV20, .depth = 0,
|
| 341 | .num_planes = 2, .char_per_block = { 5, 5, 0 },
|
| 342 | .block_w = { 4, 2, 0 }, .block_h = { 1, 1, 0 }, .hsub = 2,
|
| 343 | .vsub = 1, .is_yuv = true },
|
| 344 | { .format = DRM_FORMAT_NV30, .depth = 0,
|
| 345 | .num_planes = 2, .char_per_block = { 5, 5, 0 },
|
| 346 | .block_w = { 4, 2, 0 }, .block_h = { 1, 1, 0 }, .hsub = 1,
|
| 347 | .vsub = 1, .is_yuv = true },
|
| 348 | { .format = DRM_FORMAT_Q410, .depth = 0,
|
| 349 | .num_planes = 3, .char_per_block = { 2, 2, 2 },
|
| 350 | .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 }, .hsub = 1,
|
| 351 | .vsub = 1, .is_yuv = true },
|
| 352 | { .format = DRM_FORMAT_Q401, .depth = 0,
|
| 353 | .num_planes = 3, .char_per_block = { 2, 2, 2 },
|
| 354 | .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 }, .hsub = 1,
|
| 355 | .vsub = 1, .is_yuv = true },
|
| 356 | { .format = DRM_FORMAT_P030, .depth = 0, .num_planes = 2,
|
| 357 | .char_per_block = { 4, 8, 0 }, .block_w = { 3, 3, 0 }, .block_h = { 1, 1, 0 },
|
| 358 | .hsub = 2, .vsub = 2, .is_yuv = true},
|
| 359 | { .format = DRM_FORMAT_P230, .depth = 0, .num_planes = 2,
|
| 360 | .char_per_block = { 4, 8, 0 }, .block_w = { 3, 3, 0 }, .block_h = { 1, 1, 0 },
|
| 361 | .hsub = 2, .vsub = 1, .is_yuv = true },
|
| 362 | { .format = DRM_FORMAT_S010, .depth = 0, .num_planes = 3,
|
| 363 | .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 },
|
| 364 | .hsub = 2, .vsub = 2, .is_yuv = true},
|
| 365 | { .format = DRM_FORMAT_S210, .depth = 0, .num_planes = 3,
|
| 366 | .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 },
|
| 367 | .hsub = 2, .vsub = 1, .is_yuv = true},
|
| 368 | { .format = DRM_FORMAT_S410, .depth = 0, .num_planes = 3,
|
| 369 | .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 },
|
| 370 | .hsub = 1, .vsub = 1, .is_yuv = true},
|
| 371 | { .format = DRM_FORMAT_S012, .depth = 0, .num_planes = 3,
|
| 372 | .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 },
|
| 373 | .hsub = 2, .vsub = 2, .is_yuv = true},
|
| 374 | { .format = DRM_FORMAT_S212, .depth = 0, .num_planes = 3,
|
| 375 | .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 },
|
| 376 | .hsub = 2, .vsub = 1, .is_yuv = true},
|
| 377 | { .format = DRM_FORMAT_S412, .depth = 0, .num_planes = 3,
|
| 378 | .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 },
|
| 379 | .hsub = 1, .vsub = 1, .is_yuv = true},
|
| 380 | { .format = DRM_FORMAT_S016, .depth = 0, .num_planes = 3,
|
| 381 | .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 },
|
| 382 | .hsub = 2, .vsub = 2, .is_yuv = true},
|
| 383 | { .format = DRM_FORMAT_S216, .depth = 0, .num_planes = 3,
|
| 384 | .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 },
|
| 385 | .hsub = 2, .vsub = 1, .is_yuv = true},
|
| 386 | { .format = DRM_FORMAT_S416, .depth = 0, .num_planes = 3,
|
| 387 | .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 },
|
| 388 | .hsub = 1, .vsub = 1, .is_yuv = true},
|
| 389 | { .format = DRM_FORMAT_XYYY2101010, .depth = 0, .num_planes = 1,
|
| 390 | .char_per_block = { 4, 0, 0 }, .block_w = { 3, 0, 0 }, .block_h = { 1, 0, 0 },
|
| 391 | .hsub = 1, .vsub = 1, .is_yuv = true },
|
| 392 | { .format = DRM_FORMAT_T430, .depth = 0, .num_planes = 3,
|
| 393 | .char_per_block = { 4, 4, 4 }, .block_w = { 3, 3, 3 }, .block_h = { 1, 1, 1 },
|
| 394 | .hsub = 1, .vsub = 1, .is_yuv = true },
|
| 395 | };
|
| 396 |
|
| 397 | unsigned int i;
|
| 398 |
|
| 399 | for (i = 0; i < ARRAY_SIZE(formats); ++i) {
|
| 400 | if (formats[i].format == format)
|
| 401 | return &formats[i];
|
| 402 | }
|
| 403 |
|
| 404 | return NULL;
|
| 405 | }
|
| 406 |
|
| 407 | |
| 408 | * drm_format_info - query information for a given format
|
| 409 | * @format: pixel format (DRM_FORMAT_*)
|
| 410 | *
|
| 411 | * The caller should only pass a supported pixel format to this function.
|
| 412 | * Unsupported pixel formats will generate a warning in the kernel log.
|
| 413 | *
|
| 414 | * Returns:
|
| 415 | * The instance of struct drm_format_info that describes the pixel format, or
|
| 416 | * NULL if the format is unsupported.
|
| 417 |
|
| 418 | const struct drm_format_info *drm_format_info(u32 format)
|
| 419 | {
|
| 420 | const struct drm_format_info *info;
|
| 421 |
|
| 422 | info = __drm_format_info(format);
|
| 423 | WARN_ON(!info);
|
| 424 | return info;
|
| 425 | }
|
| 426 | EXPORT_SYMBOL(drm_format_info);
|
| 427 |
|
| 428 | |
| 429 | * drm_get_format_info - query information for a given framebuffer configuration
|
| 430 | * @dev: DRM device
|
| 431 | * @pixel_format: pixel format (DRM_FORMAT_*)
|
| 432 | * @modifier: modifier
|
| 433 | *
|
| 434 | * Returns:
|
| 435 | * The instance of struct drm_format_info that describes the pixel format, or
|
| 436 | * NULL if the format is unsupported.
|
| 437 |
|
| 438 | const struct drm_format_info *
|
| 439 | drm_get_format_info(struct drm_device *dev,
|
| 440 | u32 pixel_format, u64 modifier)
|
| 441 | {
|
| 442 | const struct drm_format_info *info = NULL;
|
| 443 |
|
| 444 | if (dev->mode_config.funcs->get_format_info)
|
| 445 | info = dev->mode_config.funcs->get_format_info(pixel_format,
|
| 446 | modifier);
|
| 447 |
|
| 448 | if (!info)
|
| 449 | info = drm_format_info(pixel_format);
|
| 450 |
|
| 451 | return info;
|
| 452 | }
|
| 453 | EXPORT_SYMBOL(drm_get_format_info);
|
| 454 |
|
| 455 | |
| 456 | * drm_format_info_block_width - width in pixels of block.
|
| 457 | * @info: pixel format info
|
| 458 | * @plane: plane index
|
| 459 | *
|
| 460 | * Returns:
|
| 461 | * The width in pixels of a block, depending on the plane index.
|
| 462 |
|
| 463 | unsigned int drm_format_info_block_width(const struct drm_format_info *info,
|
| 464 | int plane)
|
| 465 | {
|
| 466 | if (!info || plane < 0 || plane >= info->num_planes)
|
| 467 | return 0;
|
| 468 |
|
| 469 | if (!info->block_w[plane])
|
| 470 | return 1;
|
| 471 | return info->block_w[plane];
|
| 472 | }
|
| 473 | EXPORT_SYMBOL(drm_format_info_block_width);
|
| 474 |
|
| 475 | |
| 476 | * drm_format_info_block_height - height in pixels of a block
|
| 477 | * @info: pixel format info
|
| 478 | * @plane: plane index
|
| 479 | *
|
| 480 | * Returns:
|
| 481 | * The height in pixels of a block, depending on the plane index.
|
| 482 |
|
| 483 | unsigned int drm_format_info_block_height(const struct drm_format_info *info,
|
| 484 | int plane)
|
| 485 | {
|
| 486 | if (!info || plane < 0 || plane >= info->num_planes)
|
| 487 | return 0;
|
| 488 |
|
| 489 | if (!info->block_h[plane])
|
| 490 | return 1;
|
| 491 | return info->block_h[plane];
|
| 492 | }
|
| 493 | EXPORT_SYMBOL(drm_format_info_block_height);
|
| 494 |
|
| 495 | |
| 496 | * drm_format_info_bpp - number of bits per pixel
|
| 497 | * @info: pixel format info
|
| 498 | * @plane: plane index
|
| 499 | *
|
| 500 | * Returns:
|
| 501 | * The actual number of bits per pixel, depending on the plane index.
|
| 502 |
|
| 503 | unsigned int drm_format_info_bpp(const struct drm_format_info *info, int plane)
|
| 504 | {
|
| 505 | unsigned int block_size;
|
| 506 |
|
| 507 | if (!info || plane < 0 || plane >= info->num_planes)
|
| 508 | return 0;
|
| 509 |
|
| 510 | block_size = drm_format_info_block_width(info, plane) *
|
| 511 | drm_format_info_block_height(info, plane);
|
| 512 |
|
| 513 | if (info->char_per_block[plane] * 8 % block_size) {
|
| 514 | pr_warn("unable to return an integer bpp\n");
|
| 515 | return 0;
|
| 516 | }
|
| 517 |
|
| 518 | return info->char_per_block[plane] * 8 / block_size;
|
| 519 | }
|
| 520 | EXPORT_SYMBOL(drm_format_info_bpp);
|
| 521 |
|
| 522 | |
| 523 | * drm_format_info_min_pitch - computes the minimum required pitch in bytes
|
| 524 | * @info: pixel format info
|
| 525 | * @plane: plane index
|
| 526 | * @buffer_width: buffer width in pixels
|
| 527 | *
|
| 528 | * Returns:
|
| 529 | * The minimum required pitch in bytes for a buffer by taking into consideration
|
| 530 | * the pixel format information and the buffer width.
|
| 531 |
|
| 532 | uint64_t drm_format_info_min_pitch(const struct drm_format_info *info,
|
| 533 | int plane, unsigned int buffer_width)
|
| 534 | {
|
| 535 | if (!info || plane < 0 || plane >= info->num_planes)
|
| 536 | return 0;
|
| 537 |
|
| 538 | return DIV_ROUND_UP_ULL((u64)buffer_width * info->char_per_block[plane],
|
| 539 | drm_format_info_block_width(info, plane) *
|
| 540 | drm_format_info_block_height(info, plane));
|
| 541 | }
|
| 542 | EXPORT_SYMBOL(drm_format_info_min_pitch);
|