1/* Copyright (c) 2013-2015 Jeffrey Pfau
  2 *
  3 * This Source Code Form is subject to the terms of the Mozilla Public
  4 * License, v. 2.0. If a copy of the MPL was not distributed with this
  5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
  6#pragma once
  7
  8#if defined(BUILD_GL) || defined(BUILD_GLES2)
  9
 10#include "Display.h"
 11
 12#ifdef USE_EPOXY
 13#include <epoxy/gl.h>
 14#ifndef GLdouble
 15#define GLdouble GLdouble
 16#endif
 17#endif
 18
 19#include <QElapsedTimer>
 20#include <QGLWidget>
 21#include <QList>
 22#include <QMouseEvent>
 23#include <QQueue>
 24#include <QThread>
 25
 26#include "platform/video-backend.h"
 27
 28namespace QGBA {
 29
 30class EmptyGLWidget : public QGLWidget {
 31public:
 32	EmptyGLWidget(const QGLFormat& format, QWidget* parent) : QGLWidget(format, parent) { setAutoBufferSwap(false); }
 33
 34protected:
 35	void paintEvent(QPaintEvent*) override {}
 36	void resizeEvent(QResizeEvent*) override {}
 37	void mouseMoveEvent(QMouseEvent* event) override { event->ignore(); }
 38};
 39
 40class PainterGL;
 41class DisplayGL : public Display {
 42Q_OBJECT
 43
 44public:
 45	DisplayGL(const QGLFormat& format, QWidget* parent = nullptr);
 46	~DisplayGL();
 47
 48	void startDrawing(std::shared_ptr<CoreController>) override;
 49	bool isDrawing() const override { return m_isDrawing; }
 50	bool supportsShaders() const override;
 51	VideoShader* shaders() override;
 52
 53public slots:
 54	void stopDrawing() override;
 55	void pauseDrawing() override;
 56	void unpauseDrawing() override;
 57	void forceDraw() override;
 58	void lockAspectRatio(bool lock) override;
 59	void lockIntegerScaling(bool lock) override;
 60	void filter(bool filter) override;
 61	void framePosted() override;
 62	void setShaders(struct VDir*) override;
 63	void clearShaders() override;
 64	void resizeContext() override;
 65
 66protected:
 67	virtual void paintEvent(QPaintEvent*) override {}
 68	virtual void resizeEvent(QResizeEvent*) override;
 69
 70private:
 71	void resizePainter();
 72
 73	bool m_isDrawing = false;
 74	QGLWidget* m_gl;
 75	PainterGL* m_painter;
 76	QThread* m_drawThread = nullptr;
 77	std::shared_ptr<CoreController> m_context;
 78};
 79
 80class PainterGL : public QObject {
 81Q_OBJECT
 82
 83public:
 84	PainterGL(int majorVersion, QGLWidget* parent);
 85	~PainterGL();
 86
 87	void setContext(std::shared_ptr<CoreController>);
 88	void setMessagePainter(MessagePainter*);
 89	void enqueue(const uint32_t* backing);
 90
 91	bool supportsShaders() const { return m_supportsShaders; }
 92
 93public slots:
 94	void forceDraw();
 95	void draw();
 96	void start();
 97	void stop();
 98	void pause();
 99	void unpause();
100	void resize(const QSize& size);
101	void lockAspectRatio(bool lock);
102	void lockIntegerScaling(bool lock);
103	void filter(bool filter);
104	void resizeContext();
105
106	void setShaders(struct VDir*);
107	void clearShaders();
108	VideoShader* shaders();
109
110private:
111	void performDraw();
112	void dequeue();
113	void dequeueAll();
114
115	QList<uint32_t*> m_free;
116	QQueue<uint32_t*> m_queue;
117	QPainter m_painter;
118	QMutex m_mutex;
119	QGLWidget* m_gl;
120	bool m_active = false;
121	bool m_started = false;
122	std::shared_ptr<CoreController> m_context = nullptr;
123	bool m_supportsShaders;
124	VideoShader m_shader{};
125	VideoBackend* m_backend = nullptr;
126	QSize m_size;
127	MessagePainter* m_messagePainter = nullptr;
128	QElapsedTimer m_delayTimer;
129};
130
131}
132
133#endif