void QOpenGLWidget::showImage(char* pcData,int iWidth,int iHeight)
{
makeCurrent();
glClear(GL_COLOR_BUFFER_BIT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glPixelStorei(GL_UNPACK_ALIGNMENT,1);
glPixelStorei(GL_UNPACK_ROW_LENGTH,0);
glPixelStorei(GL_UNPACK_SKIP_ROWS,0);
glPixelStorei(GL_UNPACK_SKIP_PIXELS,0);
glTexImage2D(GL_TEXTURE_2D,0,1,iWidth,iHeight,0,GL_LUMINANCE,GL_UNSIGNED_BYTE,pcData);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 1.0f);
glVertex2f(0.0f, 0.0f);
glTexCoord2f(1.0f, 1.0f);
glVertex2f(float(width()), 0.0f);
glTexCoord2f(1.0f, 0.0f);
glVertex2f(float(width()), float(height()));
glTexCoord2f(0.0f, 0.0f);
glVertex2f(0.0f, float(height()));
glEnd();
glFlush();
updateGL();
}
void QOpenGLWidget::showImage(char* pcData,int iWidth,int iHeight)
{
makeCurrent();
glClear(GL_COLOR_BUFFER_BIT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glPixelStorei(GL_UNPACK_ALIGNMENT,1);
glPixelStorei(GL_UNPACK_ROW_LENGTH,0);
glPixelStorei(GL_UNPACK_SKIP_ROWS,0);
glPixelStorei(GL_UNPACK_SKIP_PIXELS,0);
glTexImage2D(GL_TEXTURE_2D,0,1,iWidth,iHeight,0,GL_LUMINANCE,GL_UNSIGNED_BYTE,pcData);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 1.0f);
glVertex2f(0.0f, 0.0f);
glTexCoord2f(1.0f, 1.0f);
glVertex2f(float(width()), 0.0f);
glTexCoord2f(1.0f, 0.0f);
glVertex2f(float(width()), float(height()));
glTexCoord2f(0.0f, 0.0f);
glVertex2f(0.0f, float(height()));
glEnd();
glFlush();
updateGL();
}
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