diff options
| author | Ptolemy <ptolemy@lindenlab.com> | 2021-01-21 17:29:54 -0800 |
|---|---|---|
| committer | Ptolemy <ptolemy@lindenlab.com> | 2021-01-25 15:52:58 -0800 |
| commit | ef4c7c124753ca93659e34c6bbf0f6ef0ca208e7 (patch) | |
| tree | 906b55699bf443039ce5c3a3aa87f1c5f3dafede /indra/llwindow | |
| parent | f639747fad3c96f2a0ebcff4903ebaaf04fa4fe7 (diff) | |
SL-14705: Merge Sovereign Engineer's fix for name tags showing in front with AMD GPUs: Fix GL_INVALID_OPERATION when copying stencil to default window framebuffer on AMD graphics on windows
Diffstat (limited to 'indra/llwindow')
| -rw-r--r-- | indra/llwindow/llwindowwin32.cpp | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/indra/llwindow/llwindowwin32.cpp b/indra/llwindow/llwindowwin32.cpp index 6831071cd1..0db9886d03 100644 --- a/indra/llwindow/llwindowwin32.cpp +++ b/indra/llwindow/llwindowwin32.cpp @@ -1474,24 +1474,29 @@ BOOL LLWindowWin32::switchContext(BOOL fullscreen, const LLCoordScreen &size, BO LL_INFOS("Window") << "pixel formats done." << LL_ENDL ; - S32 swap_method = 0; - S32 cur_format = num_formats-1; - GLint swap_query = WGL_SWAP_METHOD_ARB; - - BOOL found_format = FALSE; - - while (!found_format && wglGetPixelFormatAttribivARB(mhDC, pixel_format, 0, 1, &swap_query, &swap_method)) + S32 swap_method = 0; + S32 cur_format = 0; + GLint swap_query = WGL_SWAP_METHOD_ARB; + + // SL-14705 Fix name tags showing in front of objects with AMD GPUs. + // On AMD hardware we need to iterate from the first pixel format to the end. + // Spec: + // https://www.khronos.org/registry/OpenGL/extensions/ARB/WGL_ARB_pixel_format.txt + while (wglGetPixelFormatAttribivARB(mhDC, pixel_formats[cur_format], 0, 1, &swap_query, &swap_method)) { - if (swap_method == WGL_SWAP_UNDEFINED_ARB || cur_format <= 0) + if (swap_method == WGL_SWAP_UNDEFINED_ARB) { - found_format = TRUE; + break; } - else + else if (cur_format >= (S32)(num_formats - 1)) { - --cur_format; + cur_format = 0; + break; } + + ++cur_format; } - + pixel_format = pixel_formats[cur_format]; if (mhDC != 0) // Does The Window Have A Device Context? |