diff options
-rw-r--r-- | src/gui/opengl/qopenglframebufferobject.cpp | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/src/gui/opengl/qopenglframebufferobject.cpp b/src/gui/opengl/qopenglframebufferobject.cpp index 91c25184b6..83bc568ba7 100644 --- a/src/gui/opengl/qopenglframebufferobject.cpp +++ b/src/gui/opengl/qopenglframebufferobject.cpp @@ -55,12 +55,16 @@ QT_BEGIN_NAMESPACE #ifndef QT_NO_DEBUG #define QT_RESET_GLERROR() \ { \ - while (QOpenGLContext::currentContext()->functions()->glGetError() != GL_NO_ERROR) {} \ + while (true) {\ + GLenum error = QOpenGLContext::currentContext()->functions()->glGetError(); \ + if (error == GL_NO_ERROR || error == GL_CONTEXT_LOST) \ + break; \ + } \ } #define QT_CHECK_GLERROR() \ { \ GLenum err = QOpenGLContext::currentContext()->functions()->glGetError(); \ - if (err != GL_NO_ERROR) { \ + if (err != GL_NO_ERROR && err != GL_CONTEXT_LOST) { \ qDebug("[%s line %d] OpenGL Error: %d", \ __FILE__, __LINE__, (int)err); \ } \ @@ -126,6 +130,10 @@ QT_BEGIN_NAMESPACE #define GL_UNSIGNED_INT_2_10_10_10_REV 0x8368 #endif +#ifndef GL_CONTEXT_LOST +#define GL_CONTEXT_LOST 0x0507 +#endif + /*! \class QOpenGLFramebufferObjectFormat @@ -1303,8 +1311,11 @@ static QImage qt_gl_read_framebuffer(const QSize &size, GLenum internal_format, { QOpenGLContext *ctx = QOpenGLContext::currentContext(); QOpenGLFunctions *funcs = ctx->functions(); - while (funcs->glGetError()); - + while (true) { + GLenum error = funcs->glGetError(); + if (error == GL_NO_ERROR || error == GL_CONTEXT_LOST) + break; + } switch (internal_format) { case GL_RGB: case GL_RGB8: |