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Give a warning at startup if dpi scaling is detected.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@4149
This commit is contained in:
Peter Veenstra 2018-08-28 11:48:53 +00:00
parent 01e0a45694
commit b24425dfa4
1 changed files with 14 additions and 1 deletions
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15
src/gui/sdlmain.cpp
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@ -1246,9 +1246,22 @@ static void GUI_StartUp(Section * sec) {
}
}
sdl.desktop.doublebuf=section->Get_bool("fulldouble");
#if SDL_VERSION_ATLEAST(1, 2, 10) && !defined(WIN32)
#if SDL_VERSION_ATLEAST(1, 2, 10)
#ifdef WIN32
const SDL_VideoInfo* vidinfo = SDL_GetVideoInfo();
if (vidinfo) {
int sdl_w = vidinfo->current_w;
int sdl_h = vidinfo->current_h;
int win_w = GetSystemMetrics(SM_CXSCREEN);
int win_h = GetSystemMetrics(SM_CYSCREEN);
if (sdl_w != win_w && sdl_h != win_h)
LOG_MSG("Windows dpi/blurry apps scaling detected! The screen might be too large or not show properly,\n"
"please see the DOSBox Manual/README for details.\n");
}
#else
if (!sdl.desktop.full.width || !sdl.desktop.full.height){
//Can only be done on the very first call! Not restartable.
//On windows don't use it as SDL returns the values without taking in account the dpi scaling
const SDL_VideoInfo* vidinfo = SDL_GetVideoInfo();
if (vidinfo) {
sdl.desktop.full.width = vidinfo->current_w;