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gbm: add gbm_bo_get_bpp()

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Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
This commit is contained in:
Eric Engestrom 2017-07-19 15:05:29 +01:00 • committed by Eric Engestrom
parent 3db05ed1d1
commit 04a40f7d2a
3 changed files with 70 additions and 0 deletions
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1
src/gbm/gbm-symbols-check
View file

@ -17,6 +17,7 @@ gbm_bo_get_height
gbm_bo_get_stride
gbm_bo_get_stride_for_plane
gbm_bo_get_format
gbm_bo_get_bpp
gbm_bo_get_offset
gbm_bo_get_device
gbm_bo_get_handle

66
src/gbm/main/gbm.c
View file

@ -194,6 +194,72 @@ gbm_bo_get_format(struct gbm_bo *bo)
return bo->format;
}
/** Get the bit-per-pixel of the buffer object's format
*
* The bits-per-pixel of the buffer object's format.
*
* Note; The 'in-memory pixel' concept makes no sense for YUV formats
* (pixels are the result of the combination of multiple memory sources:
* Y, Cb & Cr; usually these are even in separate buffers), so YUV
* formats are not supported by this function.
*
* \param bo The buffer object
* \return The number of bits0per-pixel of the buffer object's format.
*/
GBM_EXPORT uint32_t
gbm_bo_get_bpp(struct gbm_bo *bo)
{
switch (bo->format) {
default:
return 0;
case GBM_FORMAT_C8:
case GBM_FORMAT_R8:
case GBM_FORMAT_RGB332:
case GBM_FORMAT_BGR233:
return 8;
case GBM_FORMAT_GR88:
case GBM_FORMAT_XRGB4444:
case GBM_FORMAT_XBGR4444:
case GBM_FORMAT_RGBX4444:
case GBM_FORMAT_BGRX4444:
case GBM_FORMAT_ARGB4444:
case GBM_FORMAT_ABGR4444:
case GBM_FORMAT_RGBA4444:
case GBM_FORMAT_BGRA4444:
case GBM_FORMAT_XRGB1555:
case GBM_FORMAT_XBGR1555:
case GBM_FORMAT_RGBX5551:
case GBM_FORMAT_BGRX5551:
case GBM_FORMAT_ARGB1555:
case GBM_FORMAT_ABGR1555:
case GBM_FORMAT_RGBA5551:
case GBM_FORMAT_BGRA5551:
case GBM_FORMAT_RGB565:
case GBM_FORMAT_BGR565:
return 16;
case GBM_FORMAT_RGB888:
case GBM_FORMAT_BGR888:
return 24;
case GBM_FORMAT_XRGB8888:
case GBM_FORMAT_XBGR8888:
case GBM_FORMAT_RGBX8888:
case GBM_FORMAT_BGRX8888:
case GBM_FORMAT_ARGB8888:
case GBM_FORMAT_ABGR8888:
case GBM_FORMAT_RGBA8888:
case GBM_FORMAT_BGRA8888:
case GBM_FORMAT_XRGB2101010:
case GBM_FORMAT_XBGR2101010:
case GBM_FORMAT_RGBX1010102:
case GBM_FORMAT_BGRX1010102:
case GBM_FORMAT_ARGB2101010:
case GBM_FORMAT_ABGR2101010:
case GBM_FORMAT_RGBA1010102:
case GBM_FORMAT_BGRA1010102:
return 32;
}
}
/** Get the offset for the data of the specified plane
*
* Extra planes, and even the first plane, may have an offset from the start of

3
src/gbm/main/gbm.h
View file

@ -333,6 +333,9 @@ gbm_bo_get_stride_for_plane(struct gbm_bo *bo, int plane);
uint32_t
gbm_bo_get_format(struct gbm_bo *bo);
uint32_t
gbm_bo_get_bpp(struct gbm_bo *bo);
uint32_t
gbm_bo_get_offset(struct gbm_bo *bo, int plane);