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 "VideoProxy.h"
 27
 28#include "platform/video-backend.h"
 29
 30namespace QGBA {
 31
 32class EmptyGLWidget : public QGLWidget {
 33public:
 34	EmptyGLWidget(const QGLFormat& format, QWidget* parent) : QGLWidget(format, parent) { setAutoBufferSwap(false); }
 35
 36protected:
 37	void paintEvent(QPaintEvent* event) override { event->ignore(); }
 38	void resizeEvent(QResizeEvent*) override {}
 39	void mouseMoveEvent(QMouseEvent* event) override { event->ignore(); }
 40};
 41
 42class PainterGL;
 43class DisplayGL : public Display {
 44Q_OBJECT
 45
 46public:
 47	DisplayGL(const QGLFormat& format, QWidget* parent = nullptr);
 48	~DisplayGL();
 49
 50	void startDrawing(std::shared_ptr<CoreController>) override;
 51	bool isDrawing() const override { return m_isDrawing; }
 52	bool supportsShaders() const override;
 53	VideoShader* shaders() override;
 54	VideoProxy* videoProxy() override;
 55
 56public slots:
 57	void stopDrawing() override;
 58	void pauseDrawing() override;
 59	void unpauseDrawing() override;
 60	void forceDraw() override;
 61	void lockAspectRatio(bool lock) override;
 62	void lockIntegerScaling(bool lock) override;
 63	void filter(bool filter) override;
 64	void framePosted() override;
 65	void setShaders(struct VDir*) override;
 66	void clearShaders() override;
 67	void resizeContext() override;
 68
 69protected:
 70	virtual void paintEvent(QPaintEvent*) override {}
 71	virtual void resizeEvent(QResizeEvent*) override;
 72
 73private:
 74	void resizePainter();
 75
 76	bool m_isDrawing = false;
 77	QGLWidget* m_gl;
 78	PainterGL* m_painter;
 79	QThread* m_drawThread = nullptr;
 80	std::shared_ptr<CoreController> m_context;
 81	VideoProxy m_videoProxy;
 82};
 83
 84class PainterGL : public QObject {
 85Q_OBJECT
 86
 87public:
 88	PainterGL(int majorVersion, VideoProxy* proxy, QGLWidget* parent);
 89	~PainterGL();
 90
 91	void setContext(std::shared_ptr<CoreController>);
 92	void setMessagePainter(MessagePainter*);
 93	void enqueue(const uint32_t* backing);
 94
 95	bool supportsShaders() const { return m_supportsShaders; }
 96
 97public slots:
 98	void forceDraw();
 99	void draw();
100	void start();
101	void stop();
102	void pause();
103	void unpause();
104	void resize(const QSize& size);
105	void lockAspectRatio(bool lock);
106	void lockIntegerScaling(bool lock);
107	void filter(bool filter);
108	void resizeContext();
109
110	void setShaders(struct VDir*);
111	void clearShaders();
112	VideoShader* shaders();
113
114private:
115	void performDraw();
116	void dequeue();
117	void dequeueAll();
118
119	QList<uint32_t*> m_free;
120	QQueue<uint32_t*> m_queue;
121	QPainter m_painter;
122	QMutex m_mutex;
123	QGLWidget* m_gl;
124	bool m_active = false;
125	bool m_started = false;
126	std::shared_ptr<CoreController> m_context = nullptr;
127	bool m_supportsShaders;
128	VideoShader m_shader{};
129	VideoBackend* m_backend = nullptr;
130	QSize m_size;
131	MessagePainter* m_messagePainter = nullptr;
132	QElapsedTimer m_delayTimer;
133	VideoProxy* m_videoProxy;
134};
135
136}
137
138#endif