qt opengl

src/main.cpp

@@ -17,7 +17,7 @@ int main(int argc, char *argv[])
     qputenv("QTSCRCPY_SERVER_PATH", "G:\\mygitcode\\QtScrcpy\\src\\scrcpy-server.jar");
 
     Dialog w;
-    //w.move(50, 930);
+    w.move(50, 930);
     w.show();
 
     return a.exec();

src/qyuvopenglwidget.cpp

@@ -1,5 +1,6 @@
 #include <QCoreApplication>
 #include <QOpenGLTexture>
+#include <QOpenGLPixelTransferOptions>
 
 #include "qyuvopenglwidget.h"
 
@@ -64,7 +65,9 @@ static QString s_fragShader = R"(
 
 QYUVOpenGLWidget::QYUVOpenGLWidget(QWidget *parent) : QOpenGLWidget(parent)
 {
-
+    m_textureY = new QOpenGLTexture(QOpenGLTexture::Target2D);
+    m_textureU = new QOpenGLTexture(QOpenGLTexture::Target2D);
+    m_textureV = new QOpenGLTexture(QOpenGLTexture::Target2D);
 }
 
 QYUVOpenGLWidget::~QYUVOpenGLWidget()
@@ -72,6 +75,19 @@ QYUVOpenGLWidget::~QYUVOpenGLWidget()
     makeCurrent();
     m_vbo.destroy();
     deInitTextures();
+
+    if (m_textureY) {
+        delete m_textureY;
+        m_textureY = Q_NULLPTR;
+    }
+    if (m_textureU) {
+        delete m_textureU;
+        m_textureU = Q_NULLPTR;
+    }
+    if (m_textureV) {
+        delete m_textureV;
+        m_textureV = Q_NULLPTR;
+    }
     doneCurrent();
 }
 
@@ -95,9 +111,19 @@ void QYUVOpenGLWidget::setFrameSize(const QSize &frameSize)
 
 void QYUVOpenGLWidget::updateTextures(quint8 *dataY, quint8 *dataU, quint8 *dataV, quint32 linesizeY, quint32 linesizeU, quint32 linesizeV)
 {
-    updateTexture(m_texture[0], 0, dataY, linesizeY);
+    if (m_textureY->textureId()) {
-    updateTexture(m_texture[1], 1, dataU, linesizeU);
+        QOpenGLPixelTransferOptions options;
-    updateTexture(m_texture[2], 2, dataV, linesizeV);
+        options.setRowLength(linesizeY);
+        m_textureY->setData(QOpenGLTexture::Red, QOpenGLTexture::UInt8,dataY, &options);
+        options.setRowLength(linesizeU);
+        m_textureU->setData(QOpenGLTexture::Red, QOpenGLTexture::UInt8,dataU, &options);
+        options.setRowLength(linesizeV);
+        m_textureV->setData(QOpenGLTexture::Red, QOpenGLTexture::UInt8,dataV, &options);
+    }
+
+    //updateTexture(m_texture[0], 0, dataY, linesizeY);
+    //updateTexture(m_texture[1], 1, dataU, linesizeU);
+    //updateTexture(m_texture[2], 2, dataV, linesizeV);
     update();
 }
 
@@ -125,6 +151,13 @@ void QYUVOpenGLWidget::paintGL()
         m_needInit = false;
     }
 
+
+    if (m_textureY->textureId()) {
+        m_textureY->bind(0);
+        m_textureU->bind(1);
+        m_textureV->bind(2);
+    }
+    /*
     glActiveTexture(GL_TEXTURE0);
     glBindTexture(GL_TEXTURE_2D, m_texture[0]);
 
@@ -133,6 +166,7 @@ void QYUVOpenGLWidget::paintGL()
 
     glActiveTexture(GL_TEXTURE2);
     glBindTexture(GL_TEXTURE_2D, m_texture[2]);
+    */
 
     glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 
@@ -178,15 +212,43 @@ void QYUVOpenGLWidget::initShader()
 
 void QYUVOpenGLWidget::initTextures()
 {
-    /*
+    deInitTextures();
-    // 创建纹理
+    if (m_textureY) {
-    m_textrueY = new QOpenGLTexture(QOpenGLTexture::Target2D);
+        m_textureY->create();
+        m_textureY->setSize(m_frameSize.width(), m_frameSize.height());
         // 设置纹理缩放时的策略
-    m_textrueY->setMinificationFilter(QOpenGLTexture::Linear);
+        m_textureY->setMinificationFilter(QOpenGLTexture::Linear);
-    m_textrueY->setMagnificationFilter(QOpenGLTexture::Linear);
+        m_textureY->setMagnificationFilter(QOpenGLTexture::Linear);
         // 设置所有方向上纹理超出坐标时的显示策略（也可单个方向单独设置）
-    m_textrueY->setWrapMode(QOpenGLTexture::ClampToEdge);
+        m_textureY->setWrapMode(QOpenGLTexture::ClampToEdge);
-*/
+        m_textureY->setMipLevels(1);
+        m_textureY->setFormat(QOpenGLTexture::R8_UNorm);
+        m_textureY->allocateStorage();
+    }
+
+    if (m_textureU) {
+        m_textureU->create();
+        m_textureU->setSize(m_frameSize.width()/2, m_frameSize.height()/2);
+        m_textureU->setMinificationFilter(QOpenGLTexture::Linear);
+        m_textureU->setMagnificationFilter(QOpenGLTexture::Linear);
+        m_textureU->setWrapMode(QOpenGLTexture::ClampToEdge);
+        m_textureU->setMipLevels(1);
+        m_textureU->setFormat(QOpenGLTexture::R8_UNorm);
+        m_textureU->allocateStorage();
+    }
+
+    if (m_textureV) {
+        m_textureV->create();
+        m_textureV->setSize(m_frameSize.width()/2, m_frameSize.height()/2);
+        m_textureV->setMinificationFilter(QOpenGLTexture::Linear);
+        m_textureV->setMagnificationFilter(QOpenGLTexture::Linear);
+        m_textureV->setWrapMode(QOpenGLTexture::ClampToEdge);
+        m_textureV->setMipLevels(1);
+        m_textureV->setFormat(QOpenGLTexture::R8_UNorm);
+        m_textureV->allocateStorage();
+    }
+
+    /*
     // 创建纹理
     glGenTextures(1, &m_texture[0]);
     glBindTexture(GL_TEXTURE_2D, m_texture[0]);
@@ -215,13 +277,21 @@ void QYUVOpenGLWidget::initTextures()
     glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
     glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
     glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, m_frameSize.width()/2, m_frameSize.height()/2, 0, GL_RED, GL_UNSIGNED_BYTE, NULL);
-
+    */
 }
 
 void QYUVOpenGLWidget::deInitTextures()
 {
-    glDeleteTextures(3, m_texture);
+    if (m_textureY) {
-    memset(m_texture, 0, 3);
+        m_textureY->destroy();
+    }
+    if (m_textureU) {
+        m_textureU->destroy();
+    }
+    if (m_textureV) {
+        m_textureV->destroy();
+    }
+
 }
 
 void QYUVOpenGLWidget::updateTexture(GLuint texture, quint32 textureType, quint8 *pixels, quint32 stride)

src/qyuvopenglwidget.h

@@ -5,7 +5,7 @@
 #include <QOpenGLShaderProgram>
 #include <QOpenGLBuffer>
 
-//QT_FORWARD_DECLARE_CLASS(QOpenGLTexture) //TODO先不用QOpenGLTexture，Texture先使用opengl原生方式
+QT_FORWARD_DECLARE_CLASS(QOpenGLTexture)
 class QYUVOpenGLWidget : public QOpenGLWidget, protected QOpenGLFunctions
 {
     Q_OBJECT
@@ -42,9 +42,9 @@ private:
     QOpenGLShaderProgram m_shaderProgram;
 
     // YUV纹理，用于生成纹理贴图
-    //QOpenGLTexture* m_textrueY = Q_NULLPTR;
+    QOpenGLTexture* m_textureY = Q_NULLPTR;
-    //QOpenGLTexture* m_textrueU = Q_NULLPTR;
+    QOpenGLTexture* m_textureU = Q_NULLPTR;
-    //QOpenGLTexture* m_textrueV = Q_NULLPTR;
+    QOpenGLTexture* m_textureV = Q_NULLPTR;
 
     // YUV纹理，用于生成纹理贴图
     GLuint m_texture[3] = {0};