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authorSimon Ser <contact@emersion.fr>2021-07-23 17:22:04 +0200
committerSimon Zeni <simon@bl4ckb0ne.ca>2021-07-23 11:27:17 -0400
commitace2eda073f838e1327abd7ffb8e5111e52f4b86 (patch)
treedb2c62b5f4ac373c4cc426d8cdc403607b25d8f8 /render
parent04d4fb536d2112caf38ad9903a7ce8616a21ba33 (diff)
render/egl: set EGL_IMAGE_PRESERVED_KHR
Without setting this the EGL implementation is allowed to perform destructive actions on the buffer when imported: its contents become undefined. This is mostly a pedantic change, because Mesa processes the attrib and does absolutely nothing with it.
Diffstat (limited to 'render')
-rw-r--r--render/egl.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/render/egl.c b/render/egl.c
index 9a3ce29c..9fa2add5 100644
--- a/render/egl.c
+++ b/render/egl.c
@@ -525,6 +525,11 @@ EGLImageKHR wlr_egl_create_image_from_dmabuf(struct wlr_egl *egl,
attribs[atti++] = attributes->modifier >> 32;
}
}
+
+ // Our clients don't expect our usage to trash the buffer contents
+ attribs[atti++] = EGL_IMAGE_PRESERVED_KHR;
+ attribs[atti++] = EGL_TRUE;
+
attribs[atti++] = EGL_NONE;
assert(atti < sizeof(attribs)/sizeof(attribs[0]));