diff mbox series

[7/7] gpu: ipu-v3: image-convert: only sample into the next tile if necessary

Message ID 20190814115444.13024-7-p.zabel@pengutronix.de (mailing list archive)
State New, archived
Headers show
Series [1/7] gpu: ipu-v3: image-convert: fix output seam valid interval | expand

Commit Message

Philipp Zabel Aug. 14, 2019, 11:54 a.m. UTC 
The first pixel of the next tile is only sampled by the hardware if the
fractional input position corresponding to the last written output pixel
is not an integer position.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
 drivers/gpu/ipu-v3/ipu-image-convert.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpu/ipu-v3/ipu-image-convert.c b/drivers/gpu/ipu-v3/ipu-image-convert.c
index cc237c1f32f0..06d658c8ca3b 100644
--- a/drivers/gpu/ipu-v3/ipu-image-convert.c
+++ b/drivers/gpu/ipu-v3/ipu-image-convert.c
@@ -1149,7 +1149,7 @@  static void calc_tile_resize_coefficients(struct ipu_image_convert_ctx *ctx)
 		 * burst size.
 		 */
 		last_output = resized_width - 1;
-		if (closest)
+		if (closest && ((last_output * resize_coeff_h) % 8192))
 			last_output++;
 		in_width = round_up(
 			(DIV_ROUND_UP(last_output * resize_coeff_h, 8192) + 1)
@@ -1206,7 +1206,7 @@  static void calc_tile_resize_coefficients(struct ipu_image_convert_ctx *ctx)
 		 * IDMAC restrictions.
 		 */
 		last_output = resized_height - 1;
-		if (closest)
+		if (closest && ((last_output * resize_coeff_v) % 8192))
 			last_output++;
 		in_height = round_up(
 			(DIV_ROUND_UP(last_output * resize_coeff_v, 8192) + 1)