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#ifndef QYUVOPENGLWIDGET_H
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#define QYUVOPENGLWIDGET_H
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#include <QOpenGLBuffer>
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#include <QOpenGLFunctions>
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#include <QOpenGLShaderProgram>
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#include <QOpenGLWidget>
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class QYUVOpenGLWidget
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: public QOpenGLWidget
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, protected QOpenGLFunctions
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{
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Q_OBJECT
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public:
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explicit QYUVOpenGLWidget(QWidget *parent = nullptr);
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virtual ~QYUVOpenGLWidget() override;
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QSize minimumSizeHint() const override;
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QSize sizeHint() const override;
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void setFrameSize(const QSize &frameSize);
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const QSize &frameSize();
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void updateTextures(quint8 *dataY, quint8 *dataU, quint8 *dataV, quint32 linesizeY, quint32 linesizeU, quint32 linesizeV);
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protected:
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void initializeGL() override;
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void paintGL() override;
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void resizeGL(int width, int height) override;
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private:
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void initShader();
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void initTextures();
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void deInitTextures();
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void updateTexture(GLuint texture, quint32 textureType, quint8 *pixels, quint32 stride);
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private:
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// 视频帧尺寸
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QSize m_frameSize = { -1, -1 };
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bool m_needUpdate = false;
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bool m_textureInited = false;
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// 顶点缓冲对象(Vertex Buffer Objects, VBO)：默认即为VertexBuffer(GL_ARRAY_BUFFER)类型
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QOpenGLBuffer m_vbo;
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// 着色器程序：编译链接着色器
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QOpenGLShaderProgram m_shaderProgram;
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// YUV纹理，用于生成纹理贴图
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GLuint m_texture[3] = { 0 };
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};
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#endif // QYUVOPENGLWIDGET_H
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