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| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2016-03-22 11:10:27 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2016-04-13 19:14:24 -0300 |
| commit | 30276a731a9c14123c95070197a08bafc148f7bc (patch) | |
| tree | 58df9659146ea18c925fdb8df7095f232843833d /drivers/media/platform/vsp1/vsp1_regs.h | |
| parent | 0e6b9c565f33cd8b22879947647abd6c076cd73e (diff) | |
| download | talos-obmc-linux-30276a731a9c14123c95070197a08bafc148f7bc.tar.gz talos-obmc-linux-30276a731a9c14123c95070197a08bafc148f7bc.zip | |
[media] v4l: vsp1: Add support for the RPF alpha multiplier on Gen3
The Gen3 RPF includes an alpha multiplier that can both multiply the
alpha channel by a fixed global alpha value, and multiply the pixel
components to convert the input to premultiplied alpha.
As alpha premultiplication is available in the BRU for both Gen2 and
Gen3 we handle it there and use the Gen3 alpha multiplier for global
alpha multiplication only. This prevents conversion to premultiplied
alpha if no BRU is present in the pipeline, that use case will be
implemented later if needed.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/platform/vsp1/vsp1_regs.h')
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_regs.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/media/platform/vsp1/vsp1_regs.h b/drivers/media/platform/vsp1/vsp1_regs.h index 069216f0eb44..927b5fb94c48 100644 --- a/drivers/media/platform/vsp1/vsp1_regs.h +++ b/drivers/media/platform/vsp1/vsp1_regs.h @@ -217,6 +217,16 @@ #define VI6_RPF_SRCM_ADDR_C1 0x0344 #define VI6_RPF_SRCM_ADDR_AI 0x0348 +#define VI6_RPF_MULT_ALPHA 0x036c +#define VI6_RPF_MULT_ALPHA_A_MMD_NONE (0 << 12) +#define VI6_RPF_MULT_ALPHA_A_MMD_RATIO (1 << 12) +#define VI6_RPF_MULT_ALPHA_P_MMD_NONE (0 << 8) +#define VI6_RPF_MULT_ALPHA_P_MMD_RATIO (1 << 8) +#define VI6_RPF_MULT_ALPHA_P_MMD_IMAGE (2 << 8) +#define VI6_RPF_MULT_ALPHA_P_MMD_BOTH (3 << 8) +#define VI6_RPF_MULT_ALPHA_RATIO_MASK (0xff < 0) +#define VI6_RPF_MULT_ALPHA_RATIO_SHIFT 0 + /* ----------------------------------------------------------------------------- * WPF Control Registers */ |
