Enable RenderEngine context switching to be async.
Also in the case of a threaded RenderEngine we can avoid the
thread hop entirely by quickly returning if the GPU is already
in the correct state.
Bug: 192099706
Test: atest librenderengine_test
Change-Id: I316096ffd89960a1d3742edacdeb442626e9ee3e
diff --git a/libs/renderengine/skia/SkiaGLRenderEngine.cpp b/libs/renderengine/skia/SkiaGLRenderEngine.cpp
index c7356ea..3c59f11 100644
--- a/libs/renderengine/skia/SkiaGLRenderEngine.cpp
+++ b/libs/renderengine/skia/SkiaGLRenderEngine.cpp
@@ -320,7 +320,8 @@
options.fReducedShaderVariations = true;
options.fPersistentCache = &mSkSLCacheMonitor;
mGrContext = GrDirectContext::MakeGL(glInterface, options);
- if (useProtectedContext(true)) {
+ if (supportsProtectedContent()) {
+ useProtectedContext(true);
mProtectedGrContext = GrDirectContext::MakeGL(glInterface, options);
useProtectedContext(false);
}
@@ -373,12 +374,10 @@
return mInProtectedContext ? mProtectedGrContext.get() : mGrContext.get();
}
-bool SkiaGLRenderEngine::useProtectedContext(bool useProtectedContext) {
- if (useProtectedContext == mInProtectedContext) {
- return true;
- }
- if (useProtectedContext && !supportsProtectedContent()) {
- return false;
+void SkiaGLRenderEngine::useProtectedContext(bool useProtectedContext) {
+ if (useProtectedContext == mInProtectedContext ||
+ (useProtectedContext && !supportsProtectedContent())) {
+ return;
}
// release any scratch resources before switching into a new mode
@@ -389,9 +388,8 @@
const EGLSurface surface =
useProtectedContext ? mProtectedPlaceholderSurface : mPlaceholderSurface;
const EGLContext context = useProtectedContext ? mProtectedEGLContext : mEGLContext;
- const bool success = eglMakeCurrent(mEGLDisplay, surface, surface, context) == EGL_TRUE;
- if (success) {
+ if (eglMakeCurrent(mEGLDisplay, surface, surface, context) == EGL_TRUE) {
mInProtectedContext = useProtectedContext;
// given that we are sharing the same thread between two GrContexts we need to
// make sure that the thread state is reset when switching between the two.
@@ -399,7 +397,6 @@
getActiveGrContext()->resetContext();
}
}
- return success;
}
base::unique_fd SkiaGLRenderEngine::flush() {
@@ -1413,10 +1410,12 @@
getActiveGrContext()->setResourceCacheLimit(maxResourceBytes);
// if it is possible to switch contexts then we will resize the other context
- if (useProtectedContext(!mInProtectedContext)) {
+ const bool originalProtectedState = mInProtectedContext;
+ useProtectedContext(!mInProtectedContext);
+ if (mInProtectedContext != originalProtectedState) {
getActiveGrContext()->setResourceCacheLimit(maxResourceBytes);
// reset back to the initial context that was active when this method was called
- useProtectedContext(!mInProtectedContext);
+ useProtectedContext(originalProtectedState);
}
}
diff --git a/libs/renderengine/skia/SkiaGLRenderEngine.h b/libs/renderengine/skia/SkiaGLRenderEngine.h
index b30355b..a852bbc 100644
--- a/libs/renderengine/skia/SkiaGLRenderEngine.h
+++ b/libs/renderengine/skia/SkiaGLRenderEngine.h
@@ -64,7 +64,7 @@
int getContextPriority() override;
bool isProtected() const override { return mInProtectedContext; }
bool supportsProtectedContent() const override;
- bool useProtectedContext(bool useProtectedContext) override;
+ void useProtectedContext(bool useProtectedContext) override;
bool supportsBackgroundBlur() override { return mBlurFilter != nullptr; }
void assertShadersCompiled(int numShaders) override;
void onPrimaryDisplaySizeChanged(ui::Size size) override;
diff --git a/libs/renderengine/skia/SkiaRenderEngine.h b/libs/renderengine/skia/SkiaRenderEngine.h
index 31ad63e..7cd9eca 100644
--- a/libs/renderengine/skia/SkiaRenderEngine.h
+++ b/libs/renderengine/skia/SkiaRenderEngine.h
@@ -44,7 +44,6 @@
virtual void deleteTextures(size_t /*count*/, uint32_t const* /*names*/) override{};
virtual bool isProtected() const override { return false; } // mInProtectedContext; }
virtual bool supportsProtectedContent() const override { return false; };
- virtual bool useProtectedContext(bool /*useProtectedContext*/) override { return false; };
virtual status_t drawLayers(const DisplaySettings& /*display*/,
const std::vector<const LayerSettings*>& /*layers*/,
const std::shared_ptr<ExternalTexture>& /*buffer*/,