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/*
* 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"
#include <EGL/egl.h>
#include <EGL/eglext.h>
namespace android {
namespace uirenderer {
class Matrix4;
class GlLayer;
class OpenGLReadback : public Readback {
public:
virtual CopyResult copySurfaceInto(Surface& surface, const Rect& srcRect,
SkBitmap* bitmap) override;
virtual CopyResult copyGraphicBufferInto(GraphicBuffer* graphicBuffer,
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;
private:
CopyResult copyGraphicBufferInto(GraphicBuffer* graphicBuffer, Matrix4& texTransform,
const Rect& srcRect, SkBitmap* bitmap);
};
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, GlLayer& 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
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