Merge "Swap contexts when unmapping ExternalTextures" into sc-dev
diff --git a/libs/renderengine/skia/SkiaGLRenderEngine.cpp b/libs/renderengine/skia/SkiaGLRenderEngine.cpp
index d28d623..cb80ef4 100644
--- a/libs/renderengine/skia/SkiaGLRenderEngine.cpp
+++ b/libs/renderengine/skia/SkiaGLRenderEngine.cpp
@@ -552,10 +552,25 @@
iter->second--;
+ // Swap contexts if needed prior to deleting this buffer
+ // See Issue 1 of
+ // https://www.khronos.org/registry/EGL/extensions/EXT/EGL_EXT_protected_content.txt: even
+ // when a protected context and an unprotected context are part of the same share group,
+ // protected surfaces may not be accessed by an unprotected context, implying that protected
+ // surfaces may only be freed when a protected context is active.
+ const bool inProtected = mInProtectedContext;
+ useProtectedContext(buffer->getUsage() & GRALLOC_USAGE_PROTECTED);
+
if (iter->second == 0) {
mTextureCache.erase(buffer->getId());
mGraphicBufferExternalRefs.erase(buffer->getId());
}
+
+ // Swap back to the previous context so that cached values of isProtected in SurfaceFlinger
+ // are up-to-date.
+ if (inProtected != mInProtectedContext) {
+ useProtectedContext(inProtected);
+ }
}
}