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drm/fourcc: Add packed 10bit YUV 4:2:0 format

Adds a format that is 3 10bit YUV 4:2:0 samples packed into a 32bit word (with 2 spare bits). Supported on Broadcom BCM2711 chips.

Dave Stevenson committed 4 years ago

Commit 006ea1b1 parent 6ea966f2 files · +14 −0Browse files

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include/uapi/drm/drm_fourcc.h+11−0
@@ -314,6 +314,13 @@ extern "C" { · 313 unmodified lines
314 */314 */
315#define DRM_FORMAT_P016 fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cr:Cb plane 16 bits per channel */315#define DRM_FORMAT_P016 fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cr:Cb plane 16 bits per channel */
316 316
317/* 2 plane YCbCr420.
318 * 3 10 bit components and 2 padding bits packed into 4 bytes.
319 * index 0 = Y plane, [31:0] x:Y2:Y1:Y0 2:10:10:10 little endian
320 * index 1 = Cr:Cb plane, [63:0] x:Cr2:Cb2:Cr1:x:Cb1:Cr0:Cb0 [2:10:10:10:2:10:10:10] little endian
321 */
322#define DRM_FORMAT_P030 fourcc_code('P', '0', '3', '0') /* 2x2 subsampled Cr:Cb plane 10 bits per channel packed */
323
317/* 3 plane non-subsampled (444) YCbCr324/* 3 plane non-subsampled (444) YCbCr
318 * 16 bits per component, but only 10 bits are used and 6 bits are padded325 * 16 bits per component, but only 10 bits are used and 6 bits are padded
319 * index 0: Y plane, [15:0] Y:x [10:6] little endian326 * index 0: Y plane, [15:0] Y:x [10:6] little endian
@@ -854,6 +861,10 @@ drm_fourcc_canonicalize_nvidia_format_mod(__u64 modifier) · 534 unmodified lines
854 * and UV. Some SAND-using hardware stores UV in a separate tiled861 * and UV. Some SAND-using hardware stores UV in a separate tiled
855 * image from Y to reduce the column height, which is not supported862 * image from Y to reduce the column height, which is not supported
856 * with these modifiers.863 * with these modifiers.
864 *
865 * The DRM_FORMAT_MOD_BROADCOM_SAND128_COL_HEIGHT modifier is also
866 * supported for DRM_FORMAT_P030 where the columns remain as 128 bytes
867 * wide, but as this is a 10 bpp format that translates to 96 pixels.
857 */868 */
858 869
859#define DRM_FORMAT_MOD_BROADCOM_SAND32_COL_HEIGHT(v) \870#define DRM_FORMAT_MOD_BROADCOM_SAND32_COL_HEIGHT(v) \