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 <QMouseEvent>
 13#include <QThread>
 14#include <QTimer>
 15
 16extern "C" {
 17#ifdef BUILD_GL
 18#include "platform/opengl/gl.h"
 19#elif defined(BUILD_GLES2)
 20#include "platform/opengl/gles2.h"
 21#endif
 22}
 23
 24struct GBAThread;
 25
 26namespace QGBA {
 27
 28class EmptyGLWidget : public QGLWidget {
 29public:
 30	EmptyGLWidget(const QGLFormat& format, QWidget* parent) : QGLWidget(format, parent) { setAutoBufferSwap(false); }
 31
 32protected:
 33	void paintEvent(QPaintEvent*) override {}
 34	void resizeEvent(QResizeEvent*) override {}
 35	void mouseMoveEvent(QMouseEvent* event) override { event->ignore(); }
 36};
 37
 38class PainterGL;
 39class DisplayGL : public Display {
 40Q_OBJECT
 41
 42public:
 43	DisplayGL(const QGLFormat& format, QWidget* parent = nullptr);
 44	~DisplayGL();
 45
 46public slots:
 47	void startDrawing(GBAThread* context) override;
 48	void stopDrawing() override;
 49	void pauseDrawing() override;
 50	void unpauseDrawing() override;
 51	void forceDraw() override;
 52	void lockAspectRatio(bool lock) override;
 53	void filter(bool filter) override;
 54	void framePosted(const uint32_t*) override;
 55
 56protected:
 57	virtual void paintEvent(QPaintEvent*) override {}
 58	virtual void resizeEvent(QResizeEvent*) override;
 59
 60private:
 61	void resizePainter();
 62
 63	QGLWidget* m_gl;
 64	PainterGL* m_painter;
 65	QThread* m_drawThread;
 66	GBAThread* m_context;
 67};
 68
 69class PainterGL : public QObject {
 70Q_OBJECT
 71
 72public:
 73	PainterGL(QGLWidget* parent);
 74
 75	void setContext(GBAThread*);
 76	void setMessagePainter(MessagePainter*);
 77
 78public slots:
 79	void setBacking(const uint32_t*);
 80	void forceDraw();
 81	void draw();
 82	void start();
 83	void stop();
 84	void pause();
 85	void unpause();
 86	void resize(const QSize& size);
 87	void lockAspectRatio(bool lock);
 88	void filter(bool filter);
 89
 90private:
 91	void performDraw();
 92
 93	QPainter m_painter;
 94	QGLWidget* m_gl;
 95	bool m_active;
 96	GBAThread* m_context;
 97#ifdef BUILD_GL
 98	GBAGLContext m_backend;
 99#elif defined(BUILD_GLES2)
100	GBAGLES2Context m_backend;
101#endif
102	QSize m_size;
103	MessagePainter* m_messagePainter;
104};
105
106}
107
108#endif