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Set an error message when SDL_GL_SetAttribute() fails because we can't support

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the attribute on X11.

--HG--
branch : SDL-1.2
This commit is contained in:
Ryan C. Gordon
2007-08-06 18:36:46 +00:00
parent 9fb3f4de89
commit d5084855e5
1 changed files with 11 additions and 6 deletions
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17
src/video/x11/SDL_x11gl.c
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@@ -338,7 +338,8 @@ int X11_GL_MakeCurrent(_THIS)
/* Get attribute data from glX. */
int X11_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
{
int retval;
int retval = -1;
int unsupported = 0;
int glx_attrib = None;
switch( attrib ) {
@@ -398,7 +399,7 @@ int X11_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
}
return retval;
} else {
return(-1);
unsupported = 1;
}
break;
case SDL_GL_SWAP_CONTROL:
@@ -406,15 +407,19 @@ int X11_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
*value = this->gl_data->glXGetSwapIntervalMESA();
return(0);
} else {
return(-1);
unsupported = 1;
}
break;
default:
return(-1);
unsupported = 1;
break;
}
retval = this->gl_data->glXGetConfig(GFX_Display, glx_visualinfo, glx_attrib, value);
if (unsupported) {
SDL_SetError("OpenGL attribute is unsupported on this system");
} else {
retval = this->gl_data->glXGetConfig(GFX_Display, glx_visualinfo, glx_attrib, value);
}
return retval;
}