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windows: Minor tweaks that makes Windows XP vidmodes work again.

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(thanks @madebr!)

Fixes #8328.
Reference Issue #8666.
This commit is contained in:
Ryan C. Gordon
2024-01-25 19:41:31 -05:00
parent 6ca596cfc1
commit dcd26a80e5
1 changed files with 8 additions and 4 deletions
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4
src/video/windows/SDL_windowsmodes.c
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@@ -70,11 +70,15 @@ static void WIN_UpdateDisplayMode(SDL_VideoDevice *_this, LPCWSTR deviceName, DW
mode->format = SDL_PIXELFORMAT_RGB555;
break;
}
} else if (bmi->bmiHeader.biCompression == BI_RGB) {
if (bmi->bmiHeader.biBitCount == 24) {
mode->format = SDL_PIXELFORMAT_RGB24;
} else if (bmi->bmiHeader.biBitCount == 8) {
mode->format = SDL_PIXELFORMAT_INDEX8;
} else if (bmi->bmiHeader.biBitCount == 4) {
mode->format = SDL_PIXELFORMAT_INDEX4LSB;
}
}
} else if (mode->format == SDL_PIXELFORMAT_UNKNOWN) {
/* FIXME: Can we tell what this will be? */
if ((data->DeviceMode.dmFields & DM_BITSPERPEL) == DM_BITSPERPEL) {