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Cleanups to Windows WGL_EXT_swap_control_tear code.

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This commit is contained in:
Ryan C. Gordon 2012-08-01 20:57:03 -04:00
parent 2cd5fc4e97
commit 55a52db07d
1 changed files with 10 additions and 7 deletions
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17
src/video/windows/SDL_windowsopengl.c
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@ -611,26 +611,29 @@ WIN_GL_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context)
int int
WIN_GL_SetSwapInterval(_THIS, int interval) WIN_GL_SetSwapInterval(_THIS, int interval)
{ {
int retval = -1;
if ((interval < 0) && (!_this->gl_data->HAS_WGL_EXT_swap_control_tear)) { if ((interval < 0) && (!_this->gl_data->HAS_WGL_EXT_swap_control_tear)) {
SDL_SetError("Negative swap interval unsupported in this GL"); SDL_SetError("Negative swap interval unsupported in this GL");
} else if (_this->gl_data->wglSwapIntervalEXT) { } else if (_this->gl_data->wglSwapIntervalEXT) {
_this->gl_data->wglSwapIntervalEXT(interval); if (_this->gl_data->wglSwapIntervalEXT(interval) == TRUE) {
return 0; retval = 0;
} else {
WIN_SetError("wglSwapIntervalEXT()");
}
} else { } else {
SDL_Unsupported(); SDL_Unsupported();
return -1;
} }
return retval;
} }
int int
WIN_GL_GetSwapInterval(_THIS) WIN_GL_GetSwapInterval(_THIS)
{ {
int retval = 0;
if (_this->gl_data->wglGetSwapIntervalEXT) { if (_this->gl_data->wglGetSwapIntervalEXT) {
return _this->gl_data->wglGetSwapIntervalEXT(); retval = _this->gl_data->wglGetSwapIntervalEXT();
} else {
/*SDL_Unsupported();*/
return 0; /* just say we're unsync'd. */
} }
return retval;
} }
void void