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authorHenry Song <henry.song@samsung.com>2015-07-23 19:38:39 +0530
committernisanthmp <nisanth.mp@samsung.com>2015-08-03 18:48:33 +0530
commit85d32b74e6eb43b0aa43f8635fce34ff83ef63a1 (patch)
treec9419b2ff1c00c2993de90c9041f89d1079abe12
parent6553e8bbfb0afcc558a0e4bb2147159c0971d9db (diff)
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Optimization when we know that surface is in transparent black.
If the original surface has not been modified or is clear, we can avoid downloading data. Change-Id: If881bae9109a57f061a4e8d956c3eaf3c6691cf1 Signed-off-by: nisanthmp <nisanth.mp@samsung.com>
-rw-r--r--src/cairo-gl-surface.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/cairo-gl-surface.c b/src/cairo-gl-surface.c
index 665ab244a..cf0f4e75d 100644
--- a/src/cairo-gl-surface.c
+++ b/src/cairo-gl-surface.c
@@ -1583,11 +1583,11 @@ _cairo_gl_surface_map_to_image (void *abstract_surface,
/* If the original surface has not been modified or
* is clear, we can avoid downloading data. */
-/* if (surface->base.is_clear || surface->base.serial == 0) {
+ if (surface->base.is_clear || surface->base.serial == 0) {
status = _cairo_gl_context_release (ctx, status);
return image;
}
-*/
+
/* This is inefficient, as we'd rather just read the thing without making
* it the destination. But then, this is the fallback path, so let's not
* fall back instead.