include/drm/drm_fourcc.h

30  * DRM_FORMAT_MAX_PLANES - maximum number of planes a DRM format can have
39  * case the format can't be specified otherwise, so we don't end up
40  * with two values describing the same format.
60  * struct drm_format_info - information about a DRM format
63 	/** @format: 4CC format identifier (DRM_FORMAT_*) */
64 	u32 format;  member
69 	 * Color depth (number of bits per pixel excluding padding bits),
82 		 * Number of bytes per pixel (per plane), this is aliased with
85 		 * describing the pixel format.
97 		 * formats for which the memory needed for a single pixel is not
105 		 * block and non-block formats in the same way.
107 		 * For formats that are intended to be used only with non-linear
109 		 * generic format table. Drivers could supply accurate
137 	/** @has_alpha: Does the format embeds an alpha component? */
140 	/** @is_yuv: Is it a YUV format? */
143 	/** @is_color_indexed: Is it a color-indexed format? */
148  * drm_format_info_is_yuv_packed - check that the format info matches a YUV
149  * format with data laid in a single plane
150  * @info: format info
153  * A boolean indicating whether the format info matches a packed YUV format.
158 	return info->is_yuv && info->num_planes == 1;  in drm_format_info_is_yuv_packed()
162  * drm_format_info_is_yuv_semiplanar - check that the format info matches a YUV
163  * format with data laid in two planes (luminance and chrominance)
164  * @info: format info
167  * A boolean indicating whether the format info matches a semiplanar YUV format.
172 	return info->is_yuv && info->num_planes == 2;  in drm_format_info_is_yuv_semiplanar()
176  * drm_format_info_is_yuv_planar - check that the format info matches a YUV
177  * format with data laid in three planes (one for each YUV component)
178  * @info: format info
181  * A boolean indicating whether the format info matches a planar YUV format.
186 	return info->is_yuv && info->num_planes == 3;  in drm_format_info_is_yuv_planar()
190  * drm_format_info_is_yuv_sampling_410 - check that the format info matches a
191  * YUV format with 4:1:0 sub-sampling
192  * @info: format info
195  * A boolean indicating whether the format info matches a YUV format with 4:1:0
196  * sub-sampling.
201 	return info->is_yuv && info->hsub == 4 && info->vsub == 4;  in drm_format_info_is_yuv_sampling_410()
205  * drm_format_info_is_yuv_sampling_411 - check that the format info matches a
206  * YUV format with 4:1:1 sub-sampling
207  * @info: format info
210  * A boolean indicating whether the format info matches a YUV format with 4:1:1
211  * sub-sampling.
216 	return info->is_yuv && info->hsub == 4 && info->vsub == 1;  in drm_format_info_is_yuv_sampling_411()
220  * drm_format_info_is_yuv_sampling_420 - check that the format info matches a
221  * YUV format with 4:2:0 sub-sampling
222  * @info: format info
225  * A boolean indicating whether the format info matches a YUV format with 4:2:0
226  * sub-sampling.
231 	return info->is_yuv && info->hsub == 2 && info->vsub == 2;  in drm_format_info_is_yuv_sampling_420()
235  * drm_format_info_is_yuv_sampling_422 - check that the format info matches a
236  * YUV format with 4:2:2 sub-sampling
237  * @info: format info
240  * A boolean indicating whether the format info matches a YUV format with 4:2:2
241  * sub-sampling.
246 	return info->is_yuv && info->hsub == 2 && info->vsub == 1;  in drm_format_info_is_yuv_sampling_422()
250  * drm_format_info_is_yuv_sampling_444 - check that the format info matches a
251  * YUV format with 4:4:4 sub-sampling
252  * @info: format info
255  * A boolean indicating whether the format info matches a YUV format with 4:4:4
256  * sub-sampling.
261 	return info->is_yuv && info->hsub == 1 && info->vsub == 1;  in drm_format_info_is_yuv_sampling_444()
265  * drm_format_info_plane_width - width of the plane given the first plane
266  * @info: pixel format info
277 	if (!info || plane >= info->num_planes)  in drm_format_info_plane_width()
283 	return DIV_ROUND_UP(width, info->hsub);  in drm_format_info_plane_width()
287  * drm_format_info_plane_height - height of the plane given the first plane
288  * @info: pixel format info
299 	if (!info || plane >= info->num_planes)  in drm_format_info_plane_height()
305 	return DIV_ROUND_UP(height, info->vsub);  in drm_format_info_plane_height()
308 const struct drm_format_info *__drm_format_info(u32 format);
309 const struct drm_format_info *drm_format_info(u32 format);