Windsome Zeng
34 lines
1.5 KiB
Diff
34 lines
1.5 KiB
Diff
From 54d08798efca8f8929744a238e2b8b2851083317 Mon Sep 17 00:00:00 2001
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From: Brendan King <Brendan.King@imgtec.com>
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Date: Wed, 8 Nov 2017 15:15:20 +0000
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Subject: [PATCH 20/67] egl/wayland: post maximum damage when blitting
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When blitting, as part of the "is_different_gpu" case when swapping
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buffers, the blit is done using the full surface dimensions, ignoring
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the damage region. This results in corruption of the non damaged region
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on screen. Workaround this by posting maximum damage when blitting.
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A better fix would be to limit the blit to the damaged region, at least
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when the number of damage rectangles is 1.
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---
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src/egl/drivers/dri2/platform_wayland.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/src/egl/drivers/dri2/platform_wayland.c b/src/egl/drivers/dri2/platform_wayland.c
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index c18edc0de4e..c2e428769fe 100644
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--- a/src/egl/drivers/dri2/platform_wayland.c
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+++ b/src/egl/drivers/dri2/platform_wayland.c
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@@ -1112,7 +1112,8 @@ dri2_wl_swap_buffers_with_damage(_EGLDisplay *disp,
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/* If the compositor doesn't support damage_buffer, we deliberately
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* ignore the damage region and post maximum damage, due to
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* https://bugs.freedesktop.org/78190 */
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- if (!n_rects || !try_damage_buffer(dri2_surf, rects, n_rects))
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+ if (dri2_dpy->is_different_gpu ||
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+ !n_rects || !try_damage_buffer(dri2_surf, rects, n_rects))
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wl_surface_damage(dri2_surf->wl_surface_wrapper,
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0, 0, INT32_MAX, INT32_MAX);
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--
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2.25.1
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