diff options
| author | Simon Ser <contact@emersion.fr> | 2019-04-25 19:35:40 +0300 |
|---|---|---|
| committer | Drew DeVault <sir@cmpwn.com> | 2019-04-26 10:08:08 -0600 |
| commit | d6e250b389b8ea07af1c801b10ecf0b55f758413 (patch) | |
| tree | b3b5833eb81ca5a996996c1816b2049e0a07fdeb /render | |
| parent | 736632ad4ed349bd5aea0c2120977b745325672d (diff) | |
render/egl: fix swapping with no damage
According to the spec:
> If <n_rects> is 0 then <rects> is ignored and the entire
> surface is implicitly damaged and the behaviour is equivalent
> to calling eglSwapBuffers.
When we want to swap with an empty damage region, set the damage to a single
empty rectangle.
Diffstat (limited to 'render')
| -rw-r--r-- | render/egl.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/render/egl.c b/render/egl.c index 4785dc9c..22859b16 100644 --- a/render/egl.c +++ b/render/egl.c @@ -377,6 +377,14 @@ bool wlr_egl_swap_buffers(struct wlr_egl *egl, EGLSurface surface, pixman_region32_fini(&flipped_damage); + if (nrects == 0) { + // Swapping with no rects is the same as swapping with the entire + // surface damaged. To swap with no damage, we set the damage region + // to a single empty rectangle. + nrects = 1; + memset(egl_damage, 0, sizeof(egl_damage)); + } + if (egl->exts.swap_buffers_with_damage_ext) { ret = eglSwapBuffersWithDamageEXT(egl->display, surface, egl_damage, nrects); |