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/*
* Copyright 2013 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 SCREENRECORD_EGL_WINDOW_H
#define SCREENRECORD_EGL_WINDOW_H
#include <gui/BufferQueue.h>
#include <utils/Errors.h>
#include <EGL/egl.h>
namespace android {
/*
* Wraps EGL display, context, surface, config for a window surface.
*
* Not thread safe.
*/
class EglWindow {
public:
EglWindow() :
mEglDisplay(EGL_NO_DISPLAY),
mEglContext(EGL_NO_CONTEXT),
mEglSurface(EGL_NO_SURFACE),
mEglConfig(NULL),
mWidth(0),
mHeight(0)
{}
~EglWindow() { eglRelease(); }
// Creates an EGL window for the supplied surface.
status_t createWindow(const sp<IGraphicBufferProducer>& surface);
// Creates an EGL pbuffer surface.
status_t createPbuffer(int width, int height);
// Return width and height values (obtained from IGBP).
int getWidth() const { return mWidth; }
int getHeight() const { return mHeight; }
// Release anything we created.
void release() { eglRelease(); }
// Make this context current.
status_t makeCurrent() const;
// Sets the presentation time on the current EGL buffer.
void presentationTime(nsecs_t whenNsec) const;
// Swaps the EGL buffer.
void swapBuffers() const;
private:
EglWindow(const EglWindow&);
EglWindow& operator=(const EglWindow&);
// Init display, create config and context.
status_t eglSetupContext(bool forPbuffer);
void eglRelease();
// Basic EGL goodies.
EGLDisplay mEglDisplay;
EGLContext mEglContext;
EGLSurface mEglSurface;
EGLConfig mEglConfig;
// Surface dimensions.
int mWidth;
int mHeight;
};
}; // namespace android
#endif /*SCREENRECORD_EGL_WINDOW_H*/
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