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authorPhilipp Zabel <p.zabel@pengutronix.de>2019-08-13 15:30:25 +0300
committerPhilipp Zabel <p.zabel@pengutronix.de>2019-08-19 17:24:37 +0300
commit82c3e948cc0fe7e01b39d437f7a58b197ebb422d (patch)
tree6391b3f2a75346c119cbaf4b71ccc3cd8d9e79fb /drivers/gpu/ipu-v3/ipu-image-convert.c
parentca84b1b860407109b4b5f3802907f13bbef5d0fd (diff)
downloadlinux-82c3e948cc0fe7e01b39d437f7a58b197ebb422d.tar.xz
gpu: ipu-v3: image-convert: fix output seam valid interval
This fixes a failure to determine any seam if the output size is exactly 1024 multiplied by the number of tiles in a given direction. In that case an empty interval out_start == out_end is being passed to find_best_seam, which looks for a seam out_start <= x < out_end. Also reduce the interval for all but the left column / top row, to avoid returning position 0 as best fit. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Diffstat (limited to 'drivers/gpu/ipu-v3/ipu-image-convert.c')
-rw-r--r--drivers/gpu/ipu-v3/ipu-image-convert.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/ipu-v3/ipu-image-convert.c b/drivers/gpu/ipu-v3/ipu-image-convert.c
index 75850fd0db7e..40d450886e1d 100644
--- a/drivers/gpu/ipu-v3/ipu-image-convert.c
+++ b/drivers/gpu/ipu-v3/ipu-image-convert.c
@@ -489,9 +489,9 @@ static void find_best_seam(struct ipu_image_convert_ctx *ctx,
unsigned int out_end;
/* Start within 1024 pixels of the right / bottom edge */
- out_start = max_t(int, 0, out_edge - 1024);
+ out_start = max_t(int, index * out_align, out_edge - 1024);
/* End before having to add more columns to the left / rows above */
- out_end = min_t(unsigned int, out_edge, index * 1024);
+ out_end = min_t(unsigned int, out_edge, index * 1024 + 1);
/*
* Output tiles must start at a multiple of 8 bytes horizontally and