CuteLogger
Fast and simple logging solution for Qt based applications
openglvideowidget.h
1/*
2 * Copyright (c) 2023 Meltytech, LLC
3 *
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18#ifndef OPENGLVIDEOWIDGET_H
19#define OPENGLVIDEOWIDGET_H
20
21#include "videowidget.h"
22
23#include <QOpenGLFunctions>
24#include <QOpenGLShaderProgram>
25#include <QOpenGLFramebufferObject>
26#include <QOpenGLContext>
27#include <QOffscreenSurface>
28
29class OpenGLVideoWidget : public Mlt::VideoWidget, protected QOpenGLFunctions
30{
31 Q_OBJECT
32
33public:
34 explicit OpenGLVideoWidget(QObject *parent = nullptr);
35 virtual ~OpenGLVideoWidget();
36
37public slots:
38 virtual void initialize();
39 virtual void renderVideo();
40 virtual void onFrameDisplayed(const SharedFrame &frame);
41
42private:
43 void createShader();
44
45 QOffscreenSurface m_offscreenSurface;
46 std::unique_ptr<QOpenGLShaderProgram> m_shader;
47 GLint m_projectionLocation;
48 GLint m_modelViewLocation;
49 GLint m_vertexLocation;
50 GLint m_texCoordLocation;
51 GLint m_colorspaceLocation;
52 GLint m_textureLocation[3];
53 QOpenGLContext *m_quickContext;
54 std::unique_ptr<QOpenGLContext> m_context;
55 GLuint m_renderTexture[3];
56 GLuint m_displayTexture[3];
57 bool m_isThreadedOpenGL;
58};
59
60#endif // OPENGLVIDEOWIDGET_H
The SharedFrame provides thread safe access to Mlt::Frame data.
Definition sharedframe.h:49