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Relax requirements on android_ycbcr to allow P010

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The existing comments on android_ycbcr only allowed for formats
with 8 bit channels. The P010 format has 10 bits of data packed
into 16 bit channels with 6 unused bits.

Bug: b/216638710
Test: none, just comment change
Change-Id: I57d5825a87f0c3dbf4a47b3f88ac1f9e65ad97fe
This commit is contained in:
Jason Macnak 2022-02-17 10:30:38 -08:00
parent 0663b07f86
commit 7cca8a0dee
1 changed files with 6 additions and 4 deletions
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10
libsystem/include/system/graphics.h
View file

@ -59,12 +59,14 @@ typedef android_hdr_t android_hdr;
/*
* Structure for describing YCbCr formats for consumption by applications.
* This is used with HAL_PIXEL_FORMAT_YCbCr_*_888.
* This is used with HAL_PIXEL_FORMAT_YCbCr_*.
*
* Buffer chroma subsampling is defined in the format.
* e.g. HAL_PIXEL_FORMAT_YCbCr_420_888 has subsampling 4:2:0.
*
* Buffers must have a 8 bit depth.
* Buffers must have a byte aligned channel depth or a byte aligned packed
* channel depth (e.g. 10 bits packed into 16 bits for
* HAL_PIXEL_FORMAT_YCbCr_P010).
*
* y, cb, and cr point to the first byte of their respective planes.
*
@ -75,8 +77,8 @@ typedef android_hdr_t android_hdr;
* cstride is the stride of the chroma planes.
*
* chroma_step is the distance in bytes from one chroma pixel value to the
* next. This is 2 bytes for semiplanar (because chroma values are interleaved
* and each chroma value is one byte) and 1 for planar.
* next. This is `2 * channel depth` bytes for semiplanar (because chroma
* values are interleaved) and `1 * channel depth` bytes for planar.
*/
struct android_ycbcr {