diff options
| -rw-r--r-- | src/opengl/qgl.cpp | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp index 3f96d1c703..8aef8b48f5 100644 --- a/src/opengl/qgl.cpp +++ b/src/opengl/qgl.cpp @@ -150,7 +150,25 @@ QGLSignalProxy *QGLSignalProxy::instance() class QGLEngineSelector { public: - QGLEngineSelector() : engineType(QPaintEngine::MaxUser) { } + QGLEngineSelector() : engineType(QPaintEngine::MaxUser) + { +#ifdef Q_WS_MAC + // The ATI X1600 driver for Mac OS X does not support return + // values from functions in GLSL. Since working around this in + // the GL2 engine would require a big, ugly rewrite, we're + // falling back to the GL 1 engine.. + QGLWidget *tmp = 0; + if (!QGLContext::currentContext()) { + tmp = new QGLWidget(); + tmp->makeCurrent(); + } + if (strstr((char *) glGetString(GL_RENDERER), "X1600")) + setPreferredPaintEngine(QPaintEngine::OpenGL); + if (tmp) + delete tmp; +#endif + + } void setPreferredPaintEngine(QPaintEngine::Type type) { if (type == QPaintEngine::OpenGL || type == QPaintEngine::OpenGL2) |