tron@2186: /* $Id$ */
tron@2186: 
truelight@0: #include "stdafx.h"
tron@2189: 
tron@2189: #ifdef WITH_SDL
tron@2189: 
Darkvater@1891: #include "openttd.h"
tron@2171: #include "sdl.h"
truelight@0: #include <SDL.h>
truelight@0: 
truelight@0: #ifdef UNIX
truelight@0: #include <signal.h>
tron@443: 
tron@443: #ifdef __MORPHOS__
tron@454: 	// The system supplied definition of SIG_DFL is wrong on MorphOS
tron@454: 	#undef SIG_DFL
tron@443: 	#define SIG_DFL (void (*)(int))0
tron@443: #endif
truelight@0: #endif
truelight@0: 
truelight@0: static int _sdl_usage;
truelight@0: 
tron@2171: #ifdef DYNAMICALLY_LOADED_SDL
truelight@0: 
tron@2183: #include "win32.h"
truelight@0: 
truelight@0: #define M(x) x "\0"
truelight@193: static const char sdl_files[] =
truelight@0: 	M("sdl.dll")
truelight@0: 	M("SDL_Init")
truelight@0: 	M("SDL_InitSubSystem")
truelight@0: 	M("SDL_GetError")
truelight@0: 	M("SDL_QuitSubSystem")
truelight@0: 	M("SDL_UpdateRect")
truelight@0: 	M("SDL_UpdateRects")
truelight@0: 	M("SDL_SetColors")
truelight@0: 	M("SDL_WM_SetCaption")
truelight@0: 	M("SDL_ShowCursor")
truelight@0: 	M("SDL_FreeSurface")
truelight@0: 	M("SDL_PollEvent")
truelight@0: 	M("SDL_WarpMouse")
truelight@0: 	M("SDL_GetTicks")
truelight@0: 	M("SDL_OpenAudio")
truelight@0: 	M("SDL_PauseAudio")
truelight@0: 	M("SDL_CloseAudio")
truelight@0: 	M("SDL_LockSurface")
truelight@0: 	M("SDL_UnlockSurface")
truelight@0: 	M("SDL_GetModState")
truelight@0: 	M("SDL_Delay")
truelight@0: 	M("SDL_Quit")
truelight@0: 	M("SDL_SetVideoMode")
truelight@0: 	M("SDL_EnableKeyRepeat")
truelight@0: 	M("SDL_EnableUNICODE")
truelight@0: 	M("SDL_VideoDriverName")
truelight@0: 	M("SDL_ListModes")
truelight@0: 	M("SDL_GetKeyState")
Darkvater@4256: 	M("SDL_LoadBMP_RW")
Darkvater@4256: 	M("SDL_RWFromFile")
Darkvater@4256: 	M("SDL_SetColorKey")
Darkvater@4256: 	M("SDL_WM_SetIcon")
Darkvater@4256: 	M("SDL_MapRGB")
truelight@0: 	M("")
truelight@0: ;
truelight@0: #undef M
truelight@0: 
tron@2171: SDLProcs sdl_proc;
truelight@0: 
tron@1301: static const char *LoadSdlDLL(void)
truelight@0: {
tron@2171: 	if (sdl_proc.SDL_Init != NULL)
truelight@0: 		return NULL;
truelight@2903: 	if (!LoadLibraryList((Function *)(void *)&sdl_proc, sdl_files))
truelight@0: 		return "Unable to load sdl.dll";
truelight@0: 	return NULL;
truelight@0: }
truelight@0: 
tron@2171: #endif // DYNAMICALLY_LOADED_SDL
truelight@0: 
truelight@0: 
truelight@0: #ifdef UNIX
truelight@0: static void SdlAbort(int sig)
truelight@0: {
truelight@0: 	/* Own hand-made parachute for the cases of failed assertions. */
truelight@0: 	SDL_CALL SDL_Quit();
tron@444: 
tron@444: 	switch (sig) {
tron@444: 		case SIGSEGV:
tron@444: 		case SIGFPE:
tron@444: 			signal(sig, SIG_DFL);
tron@444: 			raise(sig);
tron@444: 			break;
tron@444: 
tron@444: 		default:
tron@444: 			break;
tron@444: 	}
truelight@0: }
truelight@0: #endif
truelight@0: 
truelight@0: 
tron@2171: const char* SdlOpen(uint32 x)
truelight@0: {
tron@2171: #ifdef DYNAMICALLY_LOADED_SDL
tron@423: 	{
tron@1301: 		const char *s = LoadSdlDLL();
tron@423: 		if (s != NULL) return s;
tron@423: 	}
truelight@0: #endif
truelight@0: 	if (_sdl_usage++ == 0) {
truelight@0: 		if (SDL_CALL SDL_Init(x) == -1)
truelight@0: 			return SDL_CALL SDL_GetError();
tron@423: 	} else if (x != 0) {
truelight@0: 		if (SDL_CALL SDL_InitSubSystem(x) == -1)
truelight@0: 			return SDL_CALL SDL_GetError();
truelight@0: 	}
truelight@0: 
truelight@0: #ifdef UNIX
truelight@0: 	signal(SIGABRT, SdlAbort);
tron@444: 	signal(SIGSEGV, SdlAbort);
tron@444: 	signal(SIGFPE, SdlAbort);
truelight@0: #endif
truelight@0: 
truelight@0: 	return NULL;
truelight@0: }
truelight@0: 
tron@2171: void SdlClose(uint32 x)
truelight@0: {
tron@423: 	if (x != 0)
truelight@0: 		SDL_CALL SDL_QuitSubSystem(x);
truelight@0: 	if (--_sdl_usage == 0) {
truelight@0: 		SDL_CALL SDL_Quit();
tron@423: 		#ifdef UNIX
tron@443: 		signal(SIGABRT, SIG_DFL);
tron@444: 		signal(SIGSEGV, SIG_DFL);
tron@444: 		signal(SIGFPE, SIG_DFL);
tron@423: 		#endif
truelight@0: 	}
truelight@0: }
tron@2189: 
tron@2189: #endif