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[media] v4l: vsp1: Add global alpha support for DRM pipeline

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Make the global alpha multiplier of DRM planes configurable. All the
necessary infrastructure is there, we just need to store the alpha value
passed through the DRM API.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Laurent Pinchart 2016-03-24 05:15:59 -03:00 committed by Mauro Carvalho Chehab
parent f5e04e7ea7
commit 04738e7f33
2 changed files with 7 additions and 3 deletions
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5
drivers/media/platform/vsp1/vsp1_drm.c
View File

@ -235,6 +235,7 @@ EXPORT_SYMBOL_GPL(vsp1_du_atomic_begin);
* @mem: DMA addresses of the memory buffers (one per plane)
* @src: the source crop rectangle for the RPF
* @dst: the destination compose rectangle for the BRU input
* @alpha: global alpha value for the input
* @zpos: the Z-order position of the input
*
* Configure the VSP to perform composition of the image referenced by @mem
@ -263,7 +264,8 @@ EXPORT_SYMBOL_GPL(vsp1_du_atomic_begin);
int vsp1_du_atomic_update_ext(struct device *dev, unsigned int rpf_index,
u32 pixelformat, unsigned int pitch,
dma_addr_t mem[2], const struct v4l2_rect *src,
const struct v4l2_rect *dst, unsigned int zpos)
const struct v4l2_rect *dst, unsigned int alpha,
unsigned int zpos)
{
struct vsp1_device *vsp1 = dev_get_drvdata(dev);
const struct vsp1_format_info *fmtinfo;
@ -303,6 +305,7 @@ int vsp1_du_atomic_update_ext(struct device *dev, unsigned int rpf_index,
rpf->format.num_planes = fmtinfo->planes;
rpf->format.plane_fmt[0].bytesperline = pitch;
rpf->format.plane_fmt[1].bytesperline = pitch;
rpf->alpha = alpha;
rpf->mem.addr[0] = mem[0];
rpf->mem.addr[1] = mem[1];

5
include/media/vsp1.h
View File

@ -27,7 +27,8 @@ void vsp1_du_atomic_begin(struct device *dev);
int vsp1_du_atomic_update_ext(struct device *dev, unsigned int rpf,
u32 pixelformat, unsigned int pitch,
dma_addr_t mem[2], const struct v4l2_rect *src,
const struct v4l2_rect *dst, unsigned int zpos);
const struct v4l2_rect *dst, unsigned int alpha,
unsigned int zpos);
void vsp1_du_atomic_flush(struct device *dev);
static inline int vsp1_du_atomic_update(struct device *dev,
@ -37,7 +38,7 @@ static inline int vsp1_du_atomic_update(struct device *dev,
const struct v4l2_rect *dst)
{
return vsp1_du_atomic_update_ext(dev, rpf_index, pixelformat, pitch,
mem, src, dst, 0);
mem, src, dst, 255, 0);
}
#endif /* __MEDIA_VSP1_H__ */