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authorRobin Murphy <[email protected]>2019-09-21 18:07:28 +0100
committerEric Engestrom <[email protected]>2019-10-01 14:45:15 +0100
commit563f8974d81c3716538036781df3ecbf7e7686c0 (patch)
treef945ce890275feb8a26ec14ee8fe3ad35285b85d /src/egl
parent4943c89d6d3f522b3100be9187ff045f84f032b1 (diff)
egl/gbm: Fix config validation
In converting to shift/size-based validation, we lost a condition from the ARGB/XRGB equivalence check, which left it working one way round but not the other, and broke applications like glmark2-es2-drm on some platforms. Restore the equivalent check that *both* configs actually have an alpha channel before considering a mismatch. Fixes: 7b4ed2b513ef ("egl: Convert configs to use shifts and sizes instead of masks") Signed-off-by: Robin Murphy <[email protected]> Reviewed-by: Adam Jackson <[email protected]> Reviewed-by: Eric Engestrom <[email protected]>
Diffstat (limited to 'src/egl')
-rw-r--r--src/egl/drivers/dri2/platform_drm.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/egl/drivers/dri2/platform_drm.c b/src/egl/drivers/dri2/platform_drm.c
index 7b13129ee3a..d0ab172d659 100644
--- a/src/egl/drivers/dri2/platform_drm.c
+++ b/src/egl/drivers/dri2/platform_drm.c
@@ -122,11 +122,13 @@ dri2_drm_config_is_compatible(struct dri2_egl_display *dri2_dpy,
if (shifts[0] != visual->rgba_shifts.red ||
shifts[1] != visual->rgba_shifts.green ||
shifts[2] != visual->rgba_shifts.blue ||
- (shifts[3] > -1 && shifts[3] != visual->rgba_shifts.alpha) ||
+ (shifts[3] > -1 && visual->rgba_shifts.alpha > -1 &&
+ shifts[3] != visual->rgba_shifts.alpha) ||
sizes[0] != visual->rgba_sizes.red ||
sizes[1] != visual->rgba_sizes.green ||
sizes[2] != visual->rgba_sizes.blue ||
- (sizes[3] > 0 && sizes[3] != visual->rgba_sizes.alpha) ||
+ (sizes[3] > 0 && visual->rgba_sizes.alpha > 0 &&
+ sizes[3] != visual->rgba_sizes.alpha) ||
is_float != visual->is_float) {
return false;
}