From: David Herrmann <dh.herrmann@gmail.com>
To: dri-devel@lists.freedesktop.org
Cc: Jani Nikula <jani.nikula@intel.com>,
Daniel Vetter <daniel.vetter@ffwll.ch>, poma <poma@gmail.com>
Subject: [PATCH] drm/udl: fix line iterator in damage handling
Date: Fri, 23 Sep 2016 12:36:02 +0200 [thread overview]
Message-ID: <20160923103602.6800-1-dh.herrmann@gmail.com> (raw)
The udl damage handler is supposed to render 'height' lines, but its
iterator has an obvious typo that makes it miss most lines if the
rectangle does not cover 0/0.
Fix the damage handler to correctly render all lines.
This is a fallout from:
commit e375882406d0cc24030746638592004755ed4ae0
Author: Noralf Trønnes <noralf@tronnes.org>
Date: Thu Apr 28 17:18:37 2016 +0200
drm/udl: Use drm_fb_helper deferred_io support
Tested-by: poma <poma@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
---
drivers/gpu/drm/udl/udl_fb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c
index 9688bfa..611b6b9 100644
--- a/drivers/gpu/drm/udl/udl_fb.c
+++ b/drivers/gpu/drm/udl/udl_fb.c
@@ -122,7 +122,7 @@ int udl_handle_damage(struct udl_framebuffer *fb, int x, int y,
return 0;
cmd = urb->transfer_buffer;
- for (i = y; i < height ; i++) {
+ for (i = y; i < y + height ; i++) {
const int line_offset = fb->base.pitches[0] * i;
const int byte_offset = line_offset + (x * bpp);
const int dev_byte_offset = (fb->base.width * bpp * i) + (x * bpp);
--
2.10.0
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next reply other threads:[~2016-09-23 10:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-23 10:36 David Herrmann [this message]
2016-09-23 12:52 ` [PATCH] drm/udl: fix line iterator in damage handling Eric Engestrom
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