1 files changed, 116 insertions, 0 deletions
diff --git a/libs/hwui/renderthread/CanvasContext.h b/libs/hwui/renderthread/CanvasContext.h
new file mode 100644
index 0000000..2a01027
--- /dev/null
+++ b/libs/hwui/renderthread/CanvasContext.h
@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CANVASCONTEXT_H_
+#define CANVASCONTEXT_H_
+
+#include <cutils/compiler.h>
+#include <EGL/egl.h>
+#include <SkBitmap.h>
+#include <utils/Functor.h>
+#include <utils/Vector.h>
+
+#include "../DamageAccumulator.h"
+#include "../DrawProfiler.h"
+#include "../RenderNode.h"
+#include "RenderTask.h"
+#include "RenderThread.h"
+
+#define FUNCTOR_PROCESS_DELAY 4
+
+namespace android {
+namespace uirenderer {
+
+class DeferredLayerUpdater;
+class OpenGLRenderer;
+class Rect;
+class Layer;
+
+namespace renderthread {
+
+class EglManager;
+
+// This per-renderer class manages the bridge between the global EGL context
+// and the render surface.
+class CanvasContext : public IFrameCallback {
+public:
+    CanvasContext(RenderThread& thread, bool translucent, RenderNode* rootRenderNode);
+    virtual ~CanvasContext();
+
+    bool initialize(ANativeWindow* window);
+    void updateSurface(ANativeWindow* window);
+    void pauseSurface(ANativeWindow* window);
+    void setup(int width, int height, const Vector3& lightCenter, float lightRadius,
+            uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha);
+    void setOpaque(bool opaque);
+    void makeCurrent();
+    void processLayerUpdate(DeferredLayerUpdater* layerUpdater);
+    void prepareTree(TreeInfo& info);
+    void draw();
+    void destroyCanvasAndSurface();
+
+    // IFrameCallback, Chroreographer-driven frame callback entry point
+    virtual void doFrame();
+
+    bool copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap);
+
+    void destroyHardwareResources();
+    static void trimMemory(RenderThread& thread, int level);
+
+    static void invokeFunctor(RenderThread& thread, Functor* functor);
+
+    void runWithGlContext(RenderTask* task);
+
+    Layer* createRenderLayer(int width, int height);
+    Layer* createTextureLayer();
+
+    ANDROID_API static void setTextureAtlas(RenderThread& thread,
+            const sp<GraphicBuffer>& buffer, int64_t* map, size_t mapSize);
+
+    void stopDrawing();
+    void notifyFramePending();
+
+    DrawProfiler& profiler() { return mProfiler; }
+
+private:
+    friend class RegisterFrameCallbackTask;
+
+    void setSurface(ANativeWindow* window);
+    void swapBuffers();
+    void requireSurface();
+
+    void requireGlContext();
+
+    RenderThread& mRenderThread;
+    EglManager& mEglManager;
+    sp<ANativeWindow> mNativeWindow;
+    EGLSurface mEglSurface;
+    bool mDirtyRegionsEnabled;
+
+    bool mOpaque;
+    OpenGLRenderer* mCanvas;
+    bool mHaveNewSurface;
+    DamageAccumulator mDamageAccumulator;
+
+    const sp<RenderNode> mRootRenderNode;
+
+    DrawProfiler mProfiler;
+};
+
+} /* namespace renderthread */
+} /* namespace uirenderer */
+} /* namespace android */
+#endif /* CANVASCONTEXT_H_ */