1 files changed, 95 insertions, 0 deletions
diff --git a/Source/WebCore/platform/graphics/android/layers/CanvasTexture.h b/Source/WebCore/platform/graphics/android/layers/CanvasTexture.h
new file mode 100644
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+++ b/Source/WebCore/platform/graphics/android/layers/CanvasTexture.h
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+/*
+ * Copyright 2012, The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef CanvasTexture_h
+#define CanvasTexture_h
+
+#if USE(ACCELERATED_COMPOSITING)
+
+#include "CanvasLayer.h"
+
+#include <wtf/RefPtr.h>
+#include <utils/threads.h>
+
+namespace android {
+class SurfaceTexture;
+class SurfaceTextureClient;
+}
+
+namespace WebCore {
+
+class CanvasTexture : public ThreadSafeRefCounted<CanvasTexture> {
+
+public:
+    /********************************************
+     * Called by both threads
+     ********************************************/
+    static PassRefPtr<CanvasTexture> getCanvasTexture(CanvasLayer* layer);
+    bool setHwAccelerated(bool hwAccelerated);
+
+    /********************************************
+     * Called by WebKit thread
+     ********************************************/
+    void setSize(const IntSize& size);
+    SurfaceTextureClient* nativeWindow();
+    bool uploadImageBuffer(ImageBuffer* imageBuffer);
+    bool hasValidTexture() { return m_hasValidTexture; }
+
+    /********************************************
+     * Called by UI thread WITH GL context
+     ********************************************/
+    virtual ~CanvasTexture();
+    void requireTexture();
+    GLuint texture() { requireTexture(); return m_texture; }
+    bool updateTexImage();
+
+private:
+    /********************************************
+     * Called by both threads
+     ********************************************/
+    void destroySurfaceTextureLocked();
+
+    /********************************************
+     * Called by WebKit thread
+     ********************************************/
+    CanvasTexture(int layerId);
+    bool useSurfaceTexture();
+
+    IntSize m_size;
+    int m_layerId;
+    GLuint m_texture;
+    android::Mutex m_surfaceLock;
+    sp<android::SurfaceTexture> m_surfaceTexture;
+    sp<android::SurfaceTextureClient> m_ANW;
+    bool m_hasValidTexture;
+    bool m_useHwAcceleration;
+
+};
+
+} // namespace WebCore
+
+#endif // USE(ACCELERATED_COMPOSITING)
+
+#endif // CanvasTexture_h