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| author |   Hyunwoong Kim <khw0178.kim@samsung.com> | 2010-12-28 22:12:43 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-03-21 20:31:40 -0300 |
| commit | 1b09f292eb99fd6a3601e8421c463905dbb0a866 (patch) | |
| tree | b4b2f033ed5846e98c1cd4d3392a522cc504aff9 /drivers/media/video/s5p-fimc/fimc-core.h | |
| parent | [media] s5p-fimc: Move scaler details handling to the register API file (diff) | |
| download | linux-dev-1b09f292eb99fd6a3601e8421c463905dbb0a866.tar.xz linux-dev-1b09f292eb99fd6a3601e8421c463905dbb0a866.zip | |
[media] s5p-fimc: update checking scaling ratio range
Horizontal and vertical scaling range are according to the following equations.
If (SRC_Width >= 64 x DST_Width) { Exit(-1); /* Out of Horizontal scale range}
If (SRC_Height >= 64 x DST_Height) { Exit(-1); /* Out of Vertical scale range}
fimc_check_scaler_ratio() is used to check if horizontal and vertical
scale range are valid or not. To use fimc_check_scaler_ratio,
source and destination format should be set by VIDIOC_S_FMT.
And in case of scaling up, it doesn't have to check the scale range.
Reviewed-by: Jonghun Han <jonghun.han@samsung.com>
Signed-off-by: Hyunwoong Kim <khw0178.kim@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/s5p-fimc/fimc-core.h')
| -rw-r--r-- | drivers/media/video/s5p-fimc/fimc-core.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/video/s5p-fimc/fimc-core.h b/drivers/media/video/s5p-fimc/fimc-core.h index 1c15358b43b6..57bff0d21962 100644 --- a/drivers/media/video/s5p-fimc/fimc-core.h +++ b/drivers/media/video/s5p-fimc/fimc-core.h @@ -611,7 +611,7 @@ struct fimc_fmt *find_format(struct v4l2_format *f, unsigned int mask); struct fimc_fmt *find_mbus_format(struct v4l2_mbus_framefmt *f, unsigned int mask); -int fimc_check_scaler_ratio(struct v4l2_rect *r, struct fimc_frame *f); +int fimc_check_scaler_ratio(int sw, int sh, int dw, int dh, int rot); int fimc_set_scaler_info(struct fimc_ctx *ctx); int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags); int fimc_prepare_addr(struct fimc_ctx *ctx, struct vb2_buffer *vb, |