diff options
Diffstat (limited to 'vcl/source/opengl/OpenGLContext.cxx')
| -rw-r--r-- | vcl/source/opengl/OpenGLContext.cxx | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/vcl/source/opengl/OpenGLContext.cxx b/vcl/source/opengl/OpenGLContext.cxx index f389f88e92ad..ed035cb02035 100644 --- a/vcl/source/opengl/OpenGLContext.cxx +++ b/vcl/source/opengl/OpenGLContext.cxx @@ -298,16 +298,22 @@ bool InitMultisample(const PIXELFORMATDESCRIPTOR& pfd, int& rPixelFormat, }; if (!bUseDoubleBufferedRendering) + { + // Use asserts to make sure the iAttributes array is not changed without changing these ugly + // hardcode indexes into it. + assert(iAttributes[0] == WGL_DOUBLE_BUFFER_ARB); iAttributes[1] = GL_FALSE; + } if (bRequestVirtualDevice) { + assert(iAttributes[2] == WGL_DRAW_TO_WINDOW_ARB); iAttributes[2] = WGL_DRAW_TO_BITMAP_ARB; } bool bArbMultisampleSupported = true; - // First we check to see if we can get a pixel format for 4 samples + // First we check to see if we can get a pixel format for 8 samples valid = wglChoosePixelFormatARB(hDC, iAttributes, fAttributes, 1, &pixelFormat, &numFormats); // If we returned true, and our format count is greater than 1 if (valid && numFormats >= 1) @@ -320,7 +326,8 @@ bool InitMultisample(const PIXELFORMATDESCRIPTOR& pfd, int& rPixelFormat, DestroyWindow(hWnd); return bArbMultisampleSupported; } - // Our pixel format with 4 samples failed, test for 2 samples + // Our pixel format with 8 samples failed, test for 2 samples + assert(iAttributes[18] == WGL_SAMPLES_ARB); iAttributes[19] = 2; valid = wglChoosePixelFormatARB(hDC, iAttributes, fAttributes, 1, &pixelFormat, &numFormats); if (valid && numFormats >= 1) |