am fba6c12a: Merge "graphics.h: add new Y8, Y16 formats" into jb-mr1-aah-dev

# Via Android (Google) Code Review (1) and Igor Murashkin (1)
* commit 'fba6c12a3e6ac5fabe91270293b1115f72fd48a1':
  graphics.h: add new Y8, Y16 formats
This commit is contained in:
Igor Murashkin 2013-02-11 11:20:53 -08:00 committed by Android Git Automerger
commit fbb4a5ac1b

View file

@ -87,6 +87,64 @@ enum {
*/
HAL_PIXEL_FORMAT_YV12 = 0x32315659, // YCrCb 4:2:0 Planar
/*
* Android Y8 format:
*
* This format is exposed outside of the HAL to the framework.
* The expected gralloc usage flags are SW_* and HW_CAMERA_*,
* and no other HW_ flags will be used.
*
* Y8 is a YUV planar format comprised of a WxH Y plane,
* with each pixel being represented by 8 bits.
*
* It is equivalent to just the Y plane from YV12.
*
* This format assumes
* - an even width
* - an even height
* - a horizontal stride multiple of 16 pixels
* - a vertical stride equal to the height
*
* y_size = stride * height
* c_stride = ALIGN(stride/2, 16)
* c_size = c_stride * height/2
* size = y_size + c_size * 2
* cr_offset = y_size
* cb_offset = y_size + c_size
*
*/
HAL_PIXEL_FORMAT_Y8 = 0x20203859,
/*
* Android Y16 format:
*
* This format is exposed outside of the HAL to the framework.
* The expected gralloc usage flags are SW_* and HW_CAMERA_*,
* and no other HW_ flags will be used.
*
* Y16 is a YUV planar format comprised of a WxH Y plane,
* with each pixel being represented by 16 bits.
*
* It is just like Y8, but has double the bits per pixel (little endian).
*
* This format assumes
* - an even width
* - an even height
* - a horizontal stride multiple of 16 pixels
* - a vertical stride equal to the height
* - strides are specified in pixels, not in bytes
*
* y_size = stride * height
* c_stride = ALIGN(stride/2, 16)
* c_size = c_stride * height/2
* size = y_size + c_size * 2
* cr_offset = y_size
* cb_offset = y_size + c_size
*
*/
HAL_PIXEL_FORMAT_Y16 = 0x20363159,
/*
* Android RAW sensor format:
*