1 files changed, 56 insertions, 0 deletions
diff --git a/libs/hwui/OpenGLReadback.h b/libs/hwui/OpenGLReadback.h
new file mode 100644
index 000000000000..7ec2a96a9ac6
--- /dev/null
+++ b/libs/hwui/OpenGLReadback.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#pragma once
+
+#include "Readback.h"
+
+namespace android {
+namespace uirenderer {
+
+class Matrix4;
+class Layer;
+
+class OpenGLReadback : public Readback {
+public:
+    virtual CopyResult copySurfaceInto(Surface& surface, const Rect& srcRect,
+            SkBitmap* bitmap) override;
+
+protected:
+    explicit OpenGLReadback(renderthread::RenderThread& thread) : Readback(thread) {}
+    virtual ~OpenGLReadback() {}
+
+    virtual CopyResult copyImageInto(EGLImageKHR eglImage, const Matrix4& imgTransform,
+            int imgWidth, int imgHeight, const Rect& srcRect, SkBitmap* bitmap) = 0;
+};
+
+class OpenGLReadbackImpl : public OpenGLReadback {
+public:
+    OpenGLReadbackImpl(renderthread::RenderThread& thread) : OpenGLReadback(thread) {}
+
+    /**
+     * Copies the layer's contents into the provided bitmap.
+     */
+    static bool copyLayerInto(renderthread::RenderThread& renderThread, Layer& layer,
+            SkBitmap* bitmap);
+
+protected:
+    virtual CopyResult copyImageInto(EGLImageKHR eglImage, const Matrix4& imgTransform,
+            int imgWidth, int imgHeight, const Rect& srcRect, SkBitmap* bitmap) override;
+};
+
+} // namespace uirenderer
+} // namespace android