pandory500/SDL-mirror
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Fixed bug #260

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Fixed SDL_GL_SWAP_CONTROL on Windows, and the query on Linux

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%401888
This commit is contained in:
Sam Lantinga 2006-06-24 01:59:43 +00:00
parent ccd4d68be0
commit 9f57178bfb
3 changed files with 19 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

17
src/video/wincommon/SDL_wingl.c
View file

@ -346,7 +346,10 @@ int WIN_GL_SetupWindow(_THIS)
/* Uh oh, something is seriously wrong here... */
wglext = NULL;
}
if ( !wglext || !SDL_strstr(wglext, "WGL_EXT_swap_control") ) {
if ( wglext && SDL_strstr(wglext, "WGL_EXT_swap_control") ) {
this->gl_data->wglSwapIntervalEXT = WIN_GL_GetProcAddress(this, "wglSwapIntervalEXT");
this->gl_data->wglGetSwapIntervalEXT = WIN_GL_GetProcAddress(this, "wglGetSwapIntervalEXT");
} else {
this->gl_data->wglSwapIntervalEXT = NULL;
this->gl_data->wglGetSwapIntervalEXT = NULL;
}
@ -466,10 +469,12 @@ int WIN_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
break;
case SDL_GL_SWAP_CONTROL:
if ( this->gl_data->wglGetSwapIntervalEXT ) {
return this->gl_data->wglGetSwapIntervalEXT();
*value = this->gl_data->wglGetSwapIntervalEXT();
return 0;
} else {
return -1;
}
break;
default:
return(-1);
}
@ -533,6 +538,14 @@ int WIN_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
case SDL_GL_MULTISAMPLESAMPLES:
*value = 1;
break;
case SDL_GL_SWAP_CONTROL:
if ( this->gl_data->wglGetSwapIntervalEXT ) {
*value = this->gl_data->wglGetSwapIntervalEXT();
return 0;
} else {
return -1;
}
break;
default:
retval = -1;
break;

5
src/video/x11/SDL_x11gl.c
View file

@ -401,9 +401,10 @@ int X11_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
break;
case SDL_GL_SWAP_CONTROL:
if ( this->gl_data->glXGetSwapIntervalMESA ) {
return this->gl_data->glXGetSwapIntervalMESA();
*value = this->gl_data->glXGetSwapIntervalMESA();
return(0);
} else {
return(-1)/*(this->gl_config.swap_control > 0)*/;
return(-1);
}
break;
default:

2
test/testgl.c
View file

@ -834,7 +834,7 @@ int main(int argc, char *argv[])
}
if ( strncmp(argv[i], "-h", 2) == 0 ) {
printf(
"Usage: %s [-twice] [-logo] [-logocursor] [-slow] [-bpp n] [-gamma n] [-noframe] [-fsaa] [-fullscreen]\n",
"Usage: %s [-twice] [-logo] [-logocursor] [-slow] [-bpp n] [-gamma n] [-noframe] [-fsaa] [-accel] [-sync] [-fullscreen]\n",
argv[0]);
exit(0);
}