Add AVOpenGLWidget

gui/include/avopenglwidget.h

@@ -0,0 +1,54 @@
+/*
+ * This file is part of Chiaki.
+ *
+ * Chiaki is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Chiaki is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Chiaki.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef CHIAKI_AVOPENGLWIDGET_H
+#define CHIAKI_AVOPENGLWIDGET_H
+
+#include <QOpenGLWidget>
+
+extern "C"
+{
+#include <libavcodec/avcodec.h>
+}
+
+class VideoDecoder;
+
+class AVOpenGLWidget: public QOpenGLWidget
+{
+	Q_OBJECT
+
+	private:
+		VideoDecoder *decoder;
+
+		GLuint program;
+		GLuint vbo;
+		GLuint vao;
+		GLuint tex[3];
+		unsigned int frame_width, frame_height;
+
+		void UpdateTextures(AVFrame *frame);
+
+	public:
+		explicit AVOpenGLWidget(VideoDecoder *decoder, QWidget *parent = nullptr);
+
+	protected:
+		void initializeGL() override;
+		void resizeGL(int w, int h) override;
+		void paintGL() override;
+};
+
+#endif // CHIAKI_AVOPENGLWIDGET_H