//// OffscreenGlCanvas.h// interface/src/renderer//// Created by Bradley Austin Davis on 2014/04/09.// Copyright 2015 High Fidelity, Inc.//// Distributed under the Apache License, Version 2.0.// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html//#pragma once#ifndef hifi_FboCache_h#define hifi_FboCache_h#include <QOffscreenSurface>#include <QQueue>#include <QMap>#include <QtCore/QSharedPointer>#include <QMutex>class QOpenGLFramebufferObject;class FboCache : public QObject {public: FboCache(); // setSize() and getReadyFbo() must consitently be called from only a single // thread. Additionally, it is the caller's responsibility to ensure that // the appropriate OpenGL context is active when doing so. // Important.... textures are sharable resources, but FBOs ARE NOT. void setSize(const QSize& newSize); QOpenGLFramebufferObject* getReadyFbo(); // These operations are thread safe and require no OpenGL context. They manipulate the // internal locks and pointers but execute no OpenGL opreations. void lockTexture(int texture); void releaseTexture(int texture); const QSize& getSize();protected: QMap<int, QSharedPointer<QOpenGLFramebufferObject>> _fboMap; QMap<int, int> _fboLocks; QQueue<QOpenGLFramebufferObject*> _readyFboQueue; QQueue<QSharedPointer<QOpenGLFramebufferObject>> _destroyFboQueue; QMutex _lock; QSize _size;};#endif // hifi_FboCache_h
//
// OffscreenGlCanvas.h
// interface/src/renderer
//
// Created by Bradley Austin Davis on 2014/04/09.
// Copyright 2015 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
#pragma once
#ifndef hifi_FboCache_h
#define hifi_FboCache_h
#include <QOffscreenSurface>
#include <QQueue>
#include <QMap>
#include <QtCore/QSharedPointer>
#include <QMutex>
class QOpenGLFramebufferObject;
class FboCache : public QObject {
public:
FboCache();
// setSize() and getReadyFbo() must consitently be called from only a single
// thread. Additionally, it is the caller's responsibility to ensure that
// the appropriate OpenGL context is active when doing so.
// Important.... textures are sharable resources, but FBOs ARE NOT.
void setSize(const QSize& newSize);
QOpenGLFramebufferObject* getReadyFbo();
// These operations are thread safe and require no OpenGL context. They manipulate the
// internal locks and pointers but execute no OpenGL opreations.
void lockTexture(int texture);
void releaseTexture(int texture);
const QSize& getSize();
protected:
QMap<int, QSharedPointer<QOpenGLFramebufferObject>> _fboMap;
QMap<int, int> _fboLocks;
QQueue<QOpenGLFramebufferObject*> _readyFboQueue;
QQueue<QSharedPointer<QOpenGLFramebufferObject>> _destroyFboQueue;
QMutex _lock;
QSize _size;
};
#endif // hifi_FboCache_h