2 * Copyright (c) 2016 Laurent Pinchart <laurent.pinchart@ideasonboard.com>
4 * DRM core format related functions
6 * Permission to use, copy, modify, distribute, and sell this software and its
7 * documentation for any purpose is hereby granted without fee, provided that
8 * the above copyright notice appear in all copies and that both that copyright
9 * notice and this permission notice appear in supporting documentation, and
10 * that the name of the copyright holders not be used in advertising or
11 * publicity pertaining to distribution of the software without specific,
12 * written prior permission. The copyright holders make no representations
13 * about the suitability of this software for any purpose. It is provided "as
14 * is" without express or implied warranty.
16 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
17 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
18 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
19 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
20 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
21 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
25 #include <linux/bug.h>
26 #include <linux/ctype.h>
27 #include <linux/export.h>
28 #include <linux/kernel.h>
30 #include <drm/drm_device.h>
31 #include <drm/drm_fourcc.h>
34 * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description
35 * @bpp: bits per pixels
36 * @depth: bit depth per pixel
38 * Computes a drm fourcc pixel format code for the given @bpp/@depth values.
39 * Useful in fbdev emulation code, since that deals in those values.
41 uint32_t drm_mode_legacy_fb_format(uint32_t bpp
, uint32_t depth
)
43 uint32_t fmt
= DRM_FORMAT_INVALID
;
69 fmt
= DRM_FORMAT_XRGB1555
;
72 fmt
= DRM_FORMAT_RGB565
;
81 fmt
= DRM_FORMAT_RGB888
;
87 fmt
= DRM_FORMAT_XRGB8888
;
90 fmt
= DRM_FORMAT_XRGB2101010
;
93 fmt
= DRM_FORMAT_ARGB8888
;
106 EXPORT_SYMBOL(drm_mode_legacy_fb_format
);
109 * drm_driver_legacy_fb_format - compute drm fourcc code from legacy description
111 * @bpp: bits per pixels
112 * @depth: bit depth per pixel
114 * Computes a drm fourcc pixel format code for the given @bpp/@depth values.
115 * Unlike drm_mode_legacy_fb_format() this looks at the drivers mode_config,
116 * and depending on the &drm_mode_config.quirk_addfb_prefer_host_byte_order flag
117 * it returns little endian byte order or host byte order framebuffer formats.
119 uint32_t drm_driver_legacy_fb_format(struct drm_device
*dev
,
120 uint32_t bpp
, uint32_t depth
)
122 uint32_t fmt
= drm_mode_legacy_fb_format(bpp
, depth
);
124 if (dev
->mode_config
.quirk_addfb_prefer_host_byte_order
) {
125 if (fmt
== DRM_FORMAT_XRGB8888
)
126 fmt
= DRM_FORMAT_HOST_XRGB8888
;
127 if (fmt
== DRM_FORMAT_ARGB8888
)
128 fmt
= DRM_FORMAT_HOST_ARGB8888
;
129 if (fmt
== DRM_FORMAT_RGB565
)
130 fmt
= DRM_FORMAT_HOST_RGB565
;
131 if (fmt
== DRM_FORMAT_XRGB1555
)
132 fmt
= DRM_FORMAT_HOST_XRGB1555
;
135 if (dev
->mode_config
.quirk_addfb_prefer_xbgr_30bpp
&&
136 fmt
== DRM_FORMAT_XRGB2101010
)
137 fmt
= DRM_FORMAT_XBGR2101010
;
141 EXPORT_SYMBOL(drm_driver_legacy_fb_format
);
144 * Internal function to query information for a given format. See
145 * drm_format_info() for the public API.
147 const struct drm_format_info
*__drm_format_info(u32 format
)
149 static const struct drm_format_info formats
[] = {
150 { .format
= DRM_FORMAT_C1
, .depth
= 1, .num_planes
= 1,
151 .char_per_block
= { 1, }, .block_w
= { 8, }, .block_h
= { 1, }, .hsub
= 1, .vsub
= 1, .is_color_indexed
= true },
152 { .format
= DRM_FORMAT_C2
, .depth
= 2, .num_planes
= 1,
153 .char_per_block
= { 1, }, .block_w
= { 4, }, .block_h
= { 1, }, .hsub
= 1, .vsub
= 1, .is_color_indexed
= true },
154 { .format
= DRM_FORMAT_C4
, .depth
= 4, .num_planes
= 1,
155 .char_per_block
= { 1, }, .block_w
= { 2, }, .block_h
= { 1, }, .hsub
= 1, .vsub
= 1, .is_color_indexed
= true },
156 { .format
= DRM_FORMAT_C8
, .depth
= 8, .num_planes
= 1, .cpp
= { 1, 0, 0 }, .hsub
= 1, .vsub
= 1, .is_color_indexed
= true },
157 { .format
= DRM_FORMAT_D1
, .depth
= 1, .num_planes
= 1,
158 .char_per_block
= { 1, }, .block_w
= { 8, }, .block_h
= { 1, }, .hsub
= 1, .vsub
= 1 },
159 { .format
= DRM_FORMAT_D2
, .depth
= 2, .num_planes
= 1,
160 .char_per_block
= { 1, }, .block_w
= { 4, }, .block_h
= { 1, }, .hsub
= 1, .vsub
= 1 },
161 { .format
= DRM_FORMAT_D4
, .depth
= 4, .num_planes
= 1,
162 .char_per_block
= { 1, }, .block_w
= { 2, }, .block_h
= { 1, }, .hsub
= 1, .vsub
= 1 },
163 { .format
= DRM_FORMAT_D8
, .depth
= 8, .num_planes
= 1, .cpp
= { 1, 0, 0 }, .hsub
= 1, .vsub
= 1 },
164 { .format
= DRM_FORMAT_R1
, .depth
= 1, .num_planes
= 1,
165 .char_per_block
= { 1, }, .block_w
= { 8, }, .block_h
= { 1, }, .hsub
= 1, .vsub
= 1 },
166 { .format
= DRM_FORMAT_R2
, .depth
= 2, .num_planes
= 1,
167 .char_per_block
= { 1, }, .block_w
= { 4, }, .block_h
= { 1, }, .hsub
= 1, .vsub
= 1 },
168 { .format
= DRM_FORMAT_R4
, .depth
= 4, .num_planes
= 1,
169 .char_per_block
= { 1, }, .block_w
= { 2, }, .block_h
= { 1, }, .hsub
= 1, .vsub
= 1 },
170 { .format
= DRM_FORMAT_R8
, .depth
= 8, .num_planes
= 1, .cpp
= { 1, 0, 0 }, .hsub
= 1, .vsub
= 1 },
171 { .format
= DRM_FORMAT_R10
, .depth
= 10, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1 },
172 { .format
= DRM_FORMAT_R12
, .depth
= 12, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1 },
173 { .format
= DRM_FORMAT_RGB332
, .depth
= 8, .num_planes
= 1, .cpp
= { 1, 0, 0 }, .hsub
= 1, .vsub
= 1 },
174 { .format
= DRM_FORMAT_BGR233
, .depth
= 8, .num_planes
= 1, .cpp
= { 1, 0, 0 }, .hsub
= 1, .vsub
= 1 },
175 { .format
= DRM_FORMAT_XRGB4444
, .depth
= 0, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1 },
176 { .format
= DRM_FORMAT_XBGR4444
, .depth
= 0, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1 },
177 { .format
= DRM_FORMAT_RGBX4444
, .depth
= 0, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1 },
178 { .format
= DRM_FORMAT_BGRX4444
, .depth
= 0, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1 },
179 { .format
= DRM_FORMAT_ARGB4444
, .depth
= 0, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
180 { .format
= DRM_FORMAT_ABGR4444
, .depth
= 0, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
181 { .format
= DRM_FORMAT_RGBA4444
, .depth
= 0, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
182 { .format
= DRM_FORMAT_BGRA4444
, .depth
= 0, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
183 { .format
= DRM_FORMAT_XRGB1555
, .depth
= 15, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1 },
184 { .format
= DRM_FORMAT_XBGR1555
, .depth
= 15, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1 },
185 { .format
= DRM_FORMAT_RGBX5551
, .depth
= 15, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1 },
186 { .format
= DRM_FORMAT_BGRX5551
, .depth
= 15, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1 },
187 { .format
= DRM_FORMAT_ARGB1555
, .depth
= 15, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
188 { .format
= DRM_FORMAT_ABGR1555
, .depth
= 15, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
189 { .format
= DRM_FORMAT_RGBA5551
, .depth
= 15, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
190 { .format
= DRM_FORMAT_BGRA5551
, .depth
= 15, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
191 { .format
= DRM_FORMAT_RGB565
, .depth
= 16, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1 },
192 { .format
= DRM_FORMAT_BGR565
, .depth
= 16, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1 },
194 { .format
= DRM_FORMAT_XRGB1555
| DRM_FORMAT_BIG_ENDIAN
, .depth
= 15, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1 },
195 { .format
= DRM_FORMAT_RGB565
| DRM_FORMAT_BIG_ENDIAN
, .depth
= 16, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 1, .vsub
= 1 },
197 { .format
= DRM_FORMAT_RGB888
, .depth
= 24, .num_planes
= 1, .cpp
= { 3, 0, 0 }, .hsub
= 1, .vsub
= 1 },
198 { .format
= DRM_FORMAT_BGR888
, .depth
= 24, .num_planes
= 1, .cpp
= { 3, 0, 0 }, .hsub
= 1, .vsub
= 1 },
199 { .format
= DRM_FORMAT_XRGB8888
, .depth
= 24, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1 },
200 { .format
= DRM_FORMAT_XBGR8888
, .depth
= 24, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1 },
201 { .format
= DRM_FORMAT_RGBX8888
, .depth
= 24, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1 },
202 { .format
= DRM_FORMAT_BGRX8888
, .depth
= 24, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1 },
203 { .format
= DRM_FORMAT_RGB565_A8
, .depth
= 24, .num_planes
= 2, .cpp
= { 2, 1, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
204 { .format
= DRM_FORMAT_BGR565_A8
, .depth
= 24, .num_planes
= 2, .cpp
= { 2, 1, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
205 { .format
= DRM_FORMAT_XRGB2101010
, .depth
= 30, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1 },
206 { .format
= DRM_FORMAT_XBGR2101010
, .depth
= 30, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1 },
207 { .format
= DRM_FORMAT_RGBX1010102
, .depth
= 30, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1 },
208 { .format
= DRM_FORMAT_BGRX1010102
, .depth
= 30, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1 },
209 { .format
= DRM_FORMAT_ARGB2101010
, .depth
= 30, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
210 { .format
= DRM_FORMAT_ABGR2101010
, .depth
= 30, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
211 { .format
= DRM_FORMAT_RGBA1010102
, .depth
= 30, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
212 { .format
= DRM_FORMAT_BGRA1010102
, .depth
= 30, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
213 { .format
= DRM_FORMAT_ARGB8888
, .depth
= 32, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
214 { .format
= DRM_FORMAT_ABGR8888
, .depth
= 32, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
215 { .format
= DRM_FORMAT_RGBA8888
, .depth
= 32, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
216 { .format
= DRM_FORMAT_BGRA8888
, .depth
= 32, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
217 { .format
= DRM_FORMAT_XRGB16161616F
, .depth
= 0, .num_planes
= 1, .cpp
= { 8, 0, 0 }, .hsub
= 1, .vsub
= 1 },
218 { .format
= DRM_FORMAT_XBGR16161616F
, .depth
= 0, .num_planes
= 1, .cpp
= { 8, 0, 0 }, .hsub
= 1, .vsub
= 1 },
219 { .format
= DRM_FORMAT_ARGB16161616F
, .depth
= 0, .num_planes
= 1, .cpp
= { 8, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
220 { .format
= DRM_FORMAT_ABGR16161616F
, .depth
= 0, .num_planes
= 1, .cpp
= { 8, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
221 { .format
= DRM_FORMAT_AXBXGXRX106106106106
, .depth
= 0, .num_planes
= 1, .cpp
= { 8, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
222 { .format
= DRM_FORMAT_XRGB16161616
, .depth
= 0, .num_planes
= 1, .cpp
= { 8, 0, 0 }, .hsub
= 1, .vsub
= 1 },
223 { .format
= DRM_FORMAT_XBGR16161616
, .depth
= 0, .num_planes
= 1, .cpp
= { 8, 0, 0 }, .hsub
= 1, .vsub
= 1 },
224 { .format
= DRM_FORMAT_ARGB16161616
, .depth
= 0, .num_planes
= 1, .cpp
= { 8, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
225 { .format
= DRM_FORMAT_ABGR16161616
, .depth
= 0, .num_planes
= 1, .cpp
= { 8, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
226 { .format
= DRM_FORMAT_RGB888_A8
, .depth
= 32, .num_planes
= 2, .cpp
= { 3, 1, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
227 { .format
= DRM_FORMAT_BGR888_A8
, .depth
= 32, .num_planes
= 2, .cpp
= { 3, 1, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
228 { .format
= DRM_FORMAT_XRGB8888_A8
, .depth
= 32, .num_planes
= 2, .cpp
= { 4, 1, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
229 { .format
= DRM_FORMAT_XBGR8888_A8
, .depth
= 32, .num_planes
= 2, .cpp
= { 4, 1, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
230 { .format
= DRM_FORMAT_RGBX8888_A8
, .depth
= 32, .num_planes
= 2, .cpp
= { 4, 1, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
231 { .format
= DRM_FORMAT_BGRX8888_A8
, .depth
= 32, .num_planes
= 2, .cpp
= { 4, 1, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true },
232 { .format
= DRM_FORMAT_YUV410
, .depth
= 0, .num_planes
= 3, .cpp
= { 1, 1, 1 }, .hsub
= 4, .vsub
= 4, .is_yuv
= true },
233 { .format
= DRM_FORMAT_YVU410
, .depth
= 0, .num_planes
= 3, .cpp
= { 1, 1, 1 }, .hsub
= 4, .vsub
= 4, .is_yuv
= true },
234 { .format
= DRM_FORMAT_YUV411
, .depth
= 0, .num_planes
= 3, .cpp
= { 1, 1, 1 }, .hsub
= 4, .vsub
= 1, .is_yuv
= true },
235 { .format
= DRM_FORMAT_YVU411
, .depth
= 0, .num_planes
= 3, .cpp
= { 1, 1, 1 }, .hsub
= 4, .vsub
= 1, .is_yuv
= true },
236 { .format
= DRM_FORMAT_YUV420
, .depth
= 0, .num_planes
= 3, .cpp
= { 1, 1, 1 }, .hsub
= 2, .vsub
= 2, .is_yuv
= true },
237 { .format
= DRM_FORMAT_YVU420
, .depth
= 0, .num_planes
= 3, .cpp
= { 1, 1, 1 }, .hsub
= 2, .vsub
= 2, .is_yuv
= true },
238 { .format
= DRM_FORMAT_YUV422
, .depth
= 0, .num_planes
= 3, .cpp
= { 1, 1, 1 }, .hsub
= 2, .vsub
= 1, .is_yuv
= true },
239 { .format
= DRM_FORMAT_YVU422
, .depth
= 0, .num_planes
= 3, .cpp
= { 1, 1, 1 }, .hsub
= 2, .vsub
= 1, .is_yuv
= true },
240 { .format
= DRM_FORMAT_YUV444
, .depth
= 0, .num_planes
= 3, .cpp
= { 1, 1, 1 }, .hsub
= 1, .vsub
= 1, .is_yuv
= true },
241 { .format
= DRM_FORMAT_YVU444
, .depth
= 0, .num_planes
= 3, .cpp
= { 1, 1, 1 }, .hsub
= 1, .vsub
= 1, .is_yuv
= true },
242 { .format
= DRM_FORMAT_NV12
, .depth
= 0, .num_planes
= 2, .cpp
= { 1, 2, 0 }, .hsub
= 2, .vsub
= 2, .is_yuv
= true },
243 { .format
= DRM_FORMAT_NV21
, .depth
= 0, .num_planes
= 2, .cpp
= { 1, 2, 0 }, .hsub
= 2, .vsub
= 2, .is_yuv
= true },
244 { .format
= DRM_FORMAT_NV16
, .depth
= 0, .num_planes
= 2, .cpp
= { 1, 2, 0 }, .hsub
= 2, .vsub
= 1, .is_yuv
= true },
245 { .format
= DRM_FORMAT_NV61
, .depth
= 0, .num_planes
= 2, .cpp
= { 1, 2, 0 }, .hsub
= 2, .vsub
= 1, .is_yuv
= true },
246 { .format
= DRM_FORMAT_NV24
, .depth
= 0, .num_planes
= 2, .cpp
= { 1, 2, 0 }, .hsub
= 1, .vsub
= 1, .is_yuv
= true },
247 { .format
= DRM_FORMAT_NV42
, .depth
= 0, .num_planes
= 2, .cpp
= { 1, 2, 0 }, .hsub
= 1, .vsub
= 1, .is_yuv
= true },
248 { .format
= DRM_FORMAT_YUYV
, .depth
= 0, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 2, .vsub
= 1, .is_yuv
= true },
249 { .format
= DRM_FORMAT_YVYU
, .depth
= 0, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 2, .vsub
= 1, .is_yuv
= true },
250 { .format
= DRM_FORMAT_UYVY
, .depth
= 0, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 2, .vsub
= 1, .is_yuv
= true },
251 { .format
= DRM_FORMAT_VYUY
, .depth
= 0, .num_planes
= 1, .cpp
= { 2, 0, 0 }, .hsub
= 2, .vsub
= 1, .is_yuv
= true },
252 { .format
= DRM_FORMAT_XYUV8888
, .depth
= 0, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1, .is_yuv
= true },
253 { .format
= DRM_FORMAT_VUY888
, .depth
= 0, .num_planes
= 1, .cpp
= { 3, 0, 0 }, .hsub
= 1, .vsub
= 1, .is_yuv
= true },
254 { .format
= DRM_FORMAT_AYUV
, .depth
= 0, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true, .is_yuv
= true },
255 { .format
= DRM_FORMAT_Y210
, .depth
= 0, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 2, .vsub
= 1, .is_yuv
= true },
256 { .format
= DRM_FORMAT_Y212
, .depth
= 0, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 2, .vsub
= 1, .is_yuv
= true },
257 { .format
= DRM_FORMAT_Y216
, .depth
= 0, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 2, .vsub
= 1, .is_yuv
= true },
258 { .format
= DRM_FORMAT_Y410
, .depth
= 0, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true, .is_yuv
= true },
259 { .format
= DRM_FORMAT_Y412
, .depth
= 0, .num_planes
= 1, .cpp
= { 8, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true, .is_yuv
= true },
260 { .format
= DRM_FORMAT_Y416
, .depth
= 0, .num_planes
= 1, .cpp
= { 8, 0, 0 }, .hsub
= 1, .vsub
= 1, .has_alpha
= true, .is_yuv
= true },
261 { .format
= DRM_FORMAT_XVYU2101010
, .depth
= 0, .num_planes
= 1, .cpp
= { 4, 0, 0 }, .hsub
= 1, .vsub
= 1, .is_yuv
= true },
262 { .format
= DRM_FORMAT_XVYU12_16161616
, .depth
= 0, .num_planes
= 1, .cpp
= { 8, 0, 0 }, .hsub
= 1, .vsub
= 1, .is_yuv
= true },
263 { .format
= DRM_FORMAT_XVYU16161616
, .depth
= 0, .num_planes
= 1, .cpp
= { 8, 0, 0 }, .hsub
= 1, .vsub
= 1, .is_yuv
= true },
264 { .format
= DRM_FORMAT_Y0L0
, .depth
= 0, .num_planes
= 1,
265 .char_per_block
= { 8, 0, 0 }, .block_w
= { 2, 0, 0 }, .block_h
= { 2, 0, 0 },
266 .hsub
= 2, .vsub
= 2, .has_alpha
= true, .is_yuv
= true },
267 { .format
= DRM_FORMAT_X0L0
, .depth
= 0, .num_planes
= 1,
268 .char_per_block
= { 8, 0, 0 }, .block_w
= { 2, 0, 0 }, .block_h
= { 2, 0, 0 },
269 .hsub
= 2, .vsub
= 2, .is_yuv
= true },
270 { .format
= DRM_FORMAT_Y0L2
, .depth
= 0, .num_planes
= 1,
271 .char_per_block
= { 8, 0, 0 }, .block_w
= { 2, 0, 0 }, .block_h
= { 2, 0, 0 },
272 .hsub
= 2, .vsub
= 2, .has_alpha
= true, .is_yuv
= true },
273 { .format
= DRM_FORMAT_X0L2
, .depth
= 0, .num_planes
= 1,
274 .char_per_block
= { 8, 0, 0 }, .block_w
= { 2, 0, 0 }, .block_h
= { 2, 0, 0 },
275 .hsub
= 2, .vsub
= 2, .is_yuv
= true },
276 { .format
= DRM_FORMAT_P010
, .depth
= 0, .num_planes
= 2,
277 .char_per_block
= { 2, 4, 0 }, .block_w
= { 1, 1, 0 }, .block_h
= { 1, 1, 0 },
278 .hsub
= 2, .vsub
= 2, .is_yuv
= true},
279 { .format
= DRM_FORMAT_P012
, .depth
= 0, .num_planes
= 2,
280 .char_per_block
= { 2, 4, 0 }, .block_w
= { 1, 1, 0 }, .block_h
= { 1, 1, 0 },
281 .hsub
= 2, .vsub
= 2, .is_yuv
= true},
282 { .format
= DRM_FORMAT_P016
, .depth
= 0, .num_planes
= 2,
283 .char_per_block
= { 2, 4, 0 }, .block_w
= { 1, 1, 0 }, .block_h
= { 1, 1, 0 },
284 .hsub
= 2, .vsub
= 2, .is_yuv
= true},
285 { .format
= DRM_FORMAT_P210
, .depth
= 0,
286 .num_planes
= 2, .char_per_block
= { 2, 4, 0 },
287 .block_w
= { 1, 1, 0 }, .block_h
= { 1, 1, 0 }, .hsub
= 2,
288 .vsub
= 1, .is_yuv
= true },
289 { .format
= DRM_FORMAT_VUY101010
, .depth
= 0,
290 .num_planes
= 1, .cpp
= { 0, 0, 0 }, .hsub
= 1, .vsub
= 1,
292 { .format
= DRM_FORMAT_YUV420_8BIT
, .depth
= 0,
293 .num_planes
= 1, .cpp
= { 0, 0, 0 }, .hsub
= 2, .vsub
= 2,
295 { .format
= DRM_FORMAT_YUV420_10BIT
, .depth
= 0,
296 .num_planes
= 1, .cpp
= { 0, 0, 0 }, .hsub
= 2, .vsub
= 2,
298 { .format
= DRM_FORMAT_NV15
, .depth
= 0,
299 .num_planes
= 2, .char_per_block
= { 5, 5, 0 },
300 .block_w
= { 4, 2, 0 }, .block_h
= { 1, 1, 0 }, .hsub
= 2,
301 .vsub
= 2, .is_yuv
= true },
302 { .format
= DRM_FORMAT_NV20
, .depth
= 0,
303 .num_planes
= 2, .char_per_block
= { 5, 5, 0 },
304 .block_w
= { 4, 2, 0 }, .block_h
= { 1, 1, 0 }, .hsub
= 2,
305 .vsub
= 1, .is_yuv
= true },
306 { .format
= DRM_FORMAT_NV30
, .depth
= 0,
307 .num_planes
= 2, .char_per_block
= { 5, 5, 0 },
308 .block_w
= { 4, 2, 0 }, .block_h
= { 1, 1, 0 }, .hsub
= 1,
309 .vsub
= 1, .is_yuv
= true },
310 { .format
= DRM_FORMAT_Q410
, .depth
= 0,
311 .num_planes
= 3, .char_per_block
= { 2, 2, 2 },
312 .block_w
= { 1, 1, 1 }, .block_h
= { 1, 1, 1 }, .hsub
= 1,
313 .vsub
= 1, .is_yuv
= true },
314 { .format
= DRM_FORMAT_Q401
, .depth
= 0,
315 .num_planes
= 3, .char_per_block
= { 2, 2, 2 },
316 .block_w
= { 1, 1, 1 }, .block_h
= { 1, 1, 1 }, .hsub
= 1,
317 .vsub
= 1, .is_yuv
= true },
318 { .format
= DRM_FORMAT_P030
, .depth
= 0, .num_planes
= 2,
319 .char_per_block
= { 4, 8, 0 }, .block_w
= { 3, 3, 0 }, .block_h
= { 1, 1, 0 },
320 .hsub
= 2, .vsub
= 2, .is_yuv
= true},
325 for (i
= 0; i
< ARRAY_SIZE(formats
); ++i
) {
326 if (formats
[i
].format
== format
)
334 * drm_format_info - query information for a given format
335 * @format: pixel format (DRM_FORMAT_*)
337 * The caller should only pass a supported pixel format to this function.
338 * Unsupported pixel formats will generate a warning in the kernel log.
341 * The instance of struct drm_format_info that describes the pixel format, or
342 * NULL if the format is unsupported.
344 const struct drm_format_info
*drm_format_info(u32 format
)
346 const struct drm_format_info
*info
;
348 info
= __drm_format_info(format
);
352 EXPORT_SYMBOL(drm_format_info
);
355 * drm_get_format_info - query information for a given framebuffer configuration
357 * @mode_cmd: metadata from the userspace fb creation request
360 * The instance of struct drm_format_info that describes the pixel format, or
361 * NULL if the format is unsupported.
363 const struct drm_format_info
*
364 drm_get_format_info(struct drm_device
*dev
,
365 const struct drm_mode_fb_cmd2
*mode_cmd
)
367 const struct drm_format_info
*info
= NULL
;
369 if (dev
->mode_config
.funcs
->get_format_info
)
370 info
= dev
->mode_config
.funcs
->get_format_info(mode_cmd
);
373 info
= drm_format_info(mode_cmd
->pixel_format
);
377 EXPORT_SYMBOL(drm_get_format_info
);
380 * drm_format_info_block_width - width in pixels of block.
381 * @info: pixel format info
382 * @plane: plane index
385 * The width in pixels of a block, depending on the plane index.
387 unsigned int drm_format_info_block_width(const struct drm_format_info
*info
,
390 if (!info
|| plane
< 0 || plane
>= info
->num_planes
)
393 if (!info
->block_w
[plane
])
395 return info
->block_w
[plane
];
397 EXPORT_SYMBOL(drm_format_info_block_width
);
400 * drm_format_info_block_height - height in pixels of a block
401 * @info: pixel format info
402 * @plane: plane index
405 * The height in pixels of a block, depending on the plane index.
407 unsigned int drm_format_info_block_height(const struct drm_format_info
*info
,
410 if (!info
|| plane
< 0 || plane
>= info
->num_planes
)
413 if (!info
->block_h
[plane
])
415 return info
->block_h
[plane
];
417 EXPORT_SYMBOL(drm_format_info_block_height
);
420 * drm_format_info_bpp - number of bits per pixel
421 * @info: pixel format info
422 * @plane: plane index
425 * The actual number of bits per pixel, depending on the plane index.
427 unsigned int drm_format_info_bpp(const struct drm_format_info
*info
, int plane
)
429 if (!info
|| plane
< 0 || plane
>= info
->num_planes
)
432 return info
->char_per_block
[plane
] * 8 /
433 (drm_format_info_block_width(info
, plane
) *
434 drm_format_info_block_height(info
, plane
));
436 EXPORT_SYMBOL(drm_format_info_bpp
);
439 * drm_format_info_min_pitch - computes the minimum required pitch in bytes
440 * @info: pixel format info
441 * @plane: plane index
442 * @buffer_width: buffer width in pixels
445 * The minimum required pitch in bytes for a buffer by taking into consideration
446 * the pixel format information and the buffer width.
448 uint64_t drm_format_info_min_pitch(const struct drm_format_info
*info
,
449 int plane
, unsigned int buffer_width
)
451 if (!info
|| plane
< 0 || plane
>= info
->num_planes
)
454 return DIV_ROUND_UP_ULL((u64
)buffer_width
* info
->char_per_block
[plane
],
455 drm_format_info_block_width(info
, plane
) *
456 drm_format_info_block_height(info
, plane
));
458 EXPORT_SYMBOL(drm_format_info_min_pitch
);