[RenderEngine] add an ImageManager thread
Prior to this change, EGLImage management would be performed by both
binder threads and the main rendering thread in a synchronized manner.
But because of BufferQueue implementation details, it's possible for an
app's Surface to be disconnected (destroying all backing EGLImages per
the disconnect api spec), while still latching and presenting the most
recently queued image (which requires recreating the EGLImage on the
main thread), which can cause jank in some scenarios such as app-launch.
To mitigate this, defer EGLImage creation and destruction to a separate
thread behind RenderEngine so that creating the EGLImage should never be
done on the main thread. So scenarios such as app-launch avoid jank by
performing the EGLImage creation asynchronously with the main thread, so
that the creation is done by the time RenderEngine needs to start
rendering.
Bug: 136806342
Bug: 137191934
Test: Launching photos app shows no bindExternalImage* calls
during the rendering path
Test: librenderengine_test
Change-Id: Ib809e36267b5604bbbedd4089d15666b22cabc95
diff --git a/libs/renderengine/gl/GLESRenderEngine.h b/libs/renderengine/gl/GLESRenderEngine.h
index a011620..dd60e50 100644
--- a/libs/renderengine/gl/GLESRenderEngine.h
+++ b/libs/renderengine/gl/GLESRenderEngine.h
@@ -17,9 +17,7 @@
#ifndef SF_GLESRENDERENGINE_H_
#define SF_GLESRENDERENGINE_H_
-#include <android-base/thread_annotations.h>
#include <stdint.h>
-#include <sys/types.h>
#include <condition_variable>
#include <deque>
#include <mutex>
@@ -30,8 +28,11 @@
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <GLES2/gl2.h>
+#include <android-base/thread_annotations.h>
#include <renderengine/RenderEngine.h>
#include <renderengine/private/Description.h>
+#include <sys/types.h>
+#include "ImageManager.h"
#define EGL_NO_CONFIG ((EGLConfig)0)
@@ -74,7 +75,7 @@
void bindExternalTextureImage(uint32_t texName, const Image& image) override;
status_t bindExternalTextureBuffer(uint32_t texName, const sp<GraphicBuffer>& buffer,
const sp<Fence>& fence) EXCLUDES(mRenderingMutex);
- status_t cacheExternalTextureBuffer(const sp<GraphicBuffer>& buffer) EXCLUDES(mRenderingMutex);
+ void cacheExternalTextureBuffer(const sp<GraphicBuffer>& buffer) EXCLUDES(mRenderingMutex);
void unbindExternalTextureBuffer(uint64_t bufferId) EXCLUDES(mRenderingMutex);
status_t bindFrameBuffer(Framebuffer* framebuffer) override;
void unbindFrameBuffer(Framebuffer* framebuffer) override;
@@ -101,6 +102,11 @@
// Returns true iff mFramebufferImageCache contains an image keyed by bufferId
bool isFramebufferImageCachedForTesting(uint64_t bufferId)
EXCLUDES(mFramebufferImageCacheMutex);
+ // These are wrappers around public methods above, but exposing Barrier
+ // objects so that tests can block.
+ std::shared_ptr<ImageManager::Barrier> cacheExternalTextureBufferForTesting(
+ const sp<GraphicBuffer>& buffer);
+ std::shared_ptr<ImageManager::Barrier> unbindExternalTextureBufferForTesting(uint64_t bufferId);
protected:
Framebuffer* getFramebufferForDrawing() override;
@@ -147,6 +153,9 @@
void setScissor(const Rect& region);
void disableScissor();
bool waitSync(EGLSyncKHR sync, EGLint flags);
+ status_t cacheExternalTextureBufferInternal(const sp<GraphicBuffer>& buffer)
+ EXCLUDES(mRenderingMutex);
+ void unbindExternalTextureBufferInternal(uint64_t bufferId) EXCLUDES(mRenderingMutex);
// A data space is considered HDR data space if it has BT2020 color space
// with PQ or HLG transfer function.
@@ -250,7 +259,9 @@
bool mRunning = true;
};
friend class FlushTracer;
+ friend class ImageManager;
std::unique_ptr<FlushTracer> mFlushTracer;
+ std::unique_ptr<ImageManager> mImageManager = std::make_unique<ImageManager>(this);
};
} // namespace gl