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#ifndef QGBA_DISPLAY_GL
 7#define QGBA_DISPLAY_GL
 8
 9#include "Display.h"
10
11#include <QGLWidget>
12#include <QThread>
13#include <QTimer>
14
15extern "C" {
16#include "platform/opengl/gl.h"
17}
18
19struct GBAThread;
20
21namespace QGBA {
22
23class EmptyGLWidget : public QGLWidget {
24public:
25	EmptyGLWidget(const QGLFormat& format, QWidget* parent) : QGLWidget(format, parent) { setAutoBufferSwap(false); }
26
27protected:
28	void paintEvent(QPaintEvent*) override {}
29	void resizeEvent(QResizeEvent*) override {}
30};
31
32class PainterGL;
33class DisplayGL : public Display {
34Q_OBJECT
35
36public:
37	DisplayGL(const QGLFormat& format, QWidget* parent = nullptr);
38	~DisplayGL();
39
40public slots:
41	void startDrawing(GBAThread* context) override;
42	void stopDrawing() override;
43	void pauseDrawing() override;
44	void unpauseDrawing() override;
45	void forceDraw() override;
46	void lockAspectRatio(bool lock) override;
47	void filter(bool filter) override;
48	void framePosted(const uint32_t*) override;
49
50protected:
51	virtual void paintEvent(QPaintEvent*) override {}
52	virtual void resizeEvent(QResizeEvent*) override;
53
54private:
55	void resizePainter();
56
57	QGLWidget* m_gl;
58	PainterGL* m_painter;
59	QThread* m_drawThread;
60	GBAThread* m_context;
61};
62
63class PainterGL : public QObject {
64Q_OBJECT
65
66public:
67	PainterGL(QGLWidget* parent);
68
69	void setContext(GBAThread*);
70	void setMessagePainter(MessagePainter*);
71
72public slots:
73	void setBacking(const uint32_t*);
74	void forceDraw();
75	void draw();
76	void start();
77	void stop();
78	void pause();
79	void unpause();
80	void resize(const QSize& size);
81	void lockAspectRatio(bool lock);
82	void filter(bool filter);
83
84private:
85	void performDraw();
86
87	QPainter m_painter;
88	QGLWidget* m_gl;
89	bool m_active;
90	GBAThread* m_context;
91	GBAGLContext m_backend;
92	QSize m_size;
93	MessagePainter* m_messagePainter;
94};
95
96}
97
98#endif