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sdl: vid: prevent infinite recursion if SDL failed create window with selected GL attributes

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This commit is contained in:
Alibek Omarov 2019-08-03 19:01:35 +03:00
parent 386a68e334
commit 7be094b563
2 changed files with 22 additions and 15 deletions
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34
engine/platform/sdl/vid_sdl.c
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@ -548,23 +548,29 @@ qboolean VID_CreateWindow( int width, int height, qboolean fullscreen )
xpos = ypos = 0;
}
host.hWnd = SDL_CreateWindow( wndname, xpos, ypos, width, height, wndFlags );
if( !host.hWnd )
while( glw_state.safe >= SAFE_NO && glw_state.safe < SAFE_LAST )
{
Con_Reportf( S_ERROR "VID_CreateWindow: couldn't create '%s': %s\n", wndname, SDL_GetError());
host.hWnd = SDL_CreateWindow( wndname, xpos, ypos, width, height, wndFlags );
// skip some attribs in hope that context creating will not fail
if( glw_state.safe >= SAFE_NO )
{
if( !gl_wgl_msaa_samples->value && glw_state.safe + 1 == SAFE_NOMSAA )
glw_state.safe += 2; // no need to skip msaa, if we already disabled it
else glw_state.safe++;
GL_SetupAttributes( ); // re-choose attributes
// we have window, exit loop
if( host.hWnd )
break;
// try again
return VID_CreateWindow( width, height, fullscreen );
}
Con_Reportf( S_ERROR "VID_CreateWindow: couldn't create '%s' with safegl level %d: %s\n", wndname, glw_state.safe, SDL_GetError());
glw_state.safe++;
if( !gl_wgl_msaa_samples->value && glw_state.safe == SAFE_NOMSAA )
glw_state.safe++; // no need to skip msaa, if we already disabled it
GL_SetupAttributes(); // re-choose attributes
// try again create window
}
// window creation has failed...
if( glw_state.safe >= SAFE_LAST )
{
return false;
}

3
engine/ref_api.h
View File

@ -166,7 +166,8 @@ typedef enum
SAFE_NOALPHA, // don't set alpha bits
SAFE_NODEPTH, // don't set depth bits
SAFE_NOCOLOR, // don't set color bits
SAFE_DONTCARE // ignore everything, let SDL/EGL decide
SAFE_DONTCARE, // ignore everything, let SDL/EGL decide
SAFE_LAST, // must be last
} ref_safegl_context_t;
enum // OpenGL configuration attributes