內存泄漏，同時複製fbo圖像

正如你可以在圖像中看到，我有一個內存泄漏，同時複製fbo到QImage。誰知道可能的解決方案？內存泄漏，同時複製fbo圖像

enter image description here

QOpenGLFramebufferObject *fbo; 

void GLANN::render(){ 

     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); 

     // Set random seed 
     //program.setUniformValue("seedX", ((float)qrand()/RAND_MAX)); 
     //program.setUniformValue("seedY", ((float)qrand()/RAND_MAX)); 

     //Set number of alredy rendered passes 
     //program.setUniformValue("numRenderPass",mRenderPasses); 

     //Set program to fbo render mode 
     program.setUniformValue("fbo",true); 

     //Bind last rendered Image 
     //pixelsRenderedImage = bindTexture(*renderedImage); 

     //Load Identity 
     //glLoadIdentity(); 

     //Move to rendering point 
     //glTranslatef(-1.0, -1.0, 0.0f); 

     // Draw geometry 
     // Tell OpenGL which VBOs to use 

     // Render to our framebuffer 
     fbo->bind(); 
     glViewport(0,0,TexWidth,TexHeight); 

     // Tell OpenGL which VBOs to use 
     glBindBuffer(GL_ARRAY_BUFFER, vboId0); 
     glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboId1); 

     // Offset for position 
     int offset = 0; 

     // Tell OpenGL programmable pipeline how to locate vertex position data 
     int vertexLocation = program.attributeLocation("a_position"); 
     program.enableAttributeArray(vertexLocation); 
     glVertexAttribPointer(vertexLocation, 3, GL_FLOAT, GL_FALSE, sizeof(VertexData), (const void *)offset); 

     // Offset for texture coordinate 
     offset += sizeof(QVector3D); 

     // Tell OpenGL programmable pipeline how to locate vertex texture coordinate data 
     int texcoordLocation = program.attributeLocation("a_texcoord"); 
     program.enableAttributeArray(texcoordLocation); 
     glVertexAttribPointer(texcoordLocation, 2, GL_FLOAT, GL_FALSE, sizeof(VertexData), (const void *)offset); 

     //glEnable(GL_TEXTURE_2D); 

     glActiveTexture(GL_TEXTURE0); 
     glBindTexture(GL_TEXTURE_2D, pixelsRenderedImage); 

     // Draw cube geometry using indices from VBO 1 
     glDrawElements(GL_TRIANGLE_STRIP, 5, GL_UNSIGNED_SHORT, 0); 

//   qDebug() << glGetError() << "Line 183"; 

     fbo->release(); 

    renderedImage.~QImage(); 
    renderedImage = QImage(); 
    renderedImage = fbo->toImage().copy(); 
    pixelsRenderedImage = QGLWidget::bindTexture(renderedImage); 
    //Set Program to screen frendering 
    program.setUniformValue("fbo",false); 
    //Set Viewport back to default 
    glViewport(0,0,width,height); 
    //Render To Screen 
    //glEnable(GL_TEXTURE_2D); 
    glActiveTexture(GL_TEXTURE0); 
    glBindTexture(GL_TEXTURE_2D, pixelsRenderedImage); 

    // Draw quad geometry using indices from VBO 1 
    glDrawElements(GL_TRIANGLE_STRIP, 5, GL_UNSIGNED_SHORT, 0); 


}

來源

2015-02-17 schwenk

請問您可以添加整個方法嗎？這種類型是'fbo'？ – 2015-02-17 21:21:54

我不認爲它必須對問題做些什麼，但是可以刪除'renderedImage。〜QImage（）'這一行，因爲舊數據將由其下面的行中的賦值運算符釋放。 'renderedImage = QImage（）;'也是沒用的，因爲你在下一行覆蓋它。 – 2015-02-17 22:08:48

找到錯誤在「bindTexture」的一部分。

補充：

glDeleteTextures(1,&pixelsRenderedImage);

解決了這個問題。

來源

2015-02-17 23:18:39 schwenk

內存泄漏，同時複製fbo圖像

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