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@ r7582:dfefb1216e6f
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Location: cpp/openttd-patchpack/source/src/sdl.cpp
r7582:dfefb1216e6f
2.3 KiB
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(svn r11107) -Feature: some tool so one can still build tunnels under rails (and other structures) when the owner of the structure built it on foundations and if you have enough "empty" space ofcourse. One could use the tool for some other construction needs too. Patch by frosch.
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/** @file sdl.cpp */
#include "stdafx.h"
#ifdef WITH_SDL
#include "openttd.h"
#include "sdl.h"
#include <SDL.h>
#ifdef UNIX
#include <signal.h>
#ifdef __MORPHOS__
// The system supplied definition of SIG_DFL is wrong on MorphOS
#undef SIG_DFL
#define SIG_DFL (void (*)(int))0
#endif
#endif
static int _sdl_usage;
#ifdef DYNAMICALLY_LOADED_SDL
#include "win32.h"
#define M(x) x "\0"
static const char sdl_files[] =
M("sdl.dll")
M("SDL_Init")
M("SDL_InitSubSystem")
M("SDL_GetError")
M("SDL_QuitSubSystem")
M("SDL_UpdateRect")
M("SDL_UpdateRects")
M("SDL_SetColors")
M("SDL_WM_SetCaption")
M("SDL_ShowCursor")
M("SDL_FreeSurface")
M("SDL_PollEvent")
M("SDL_WarpMouse")
M("SDL_GetTicks")
M("SDL_OpenAudio")
M("SDL_PauseAudio")
M("SDL_CloseAudio")
M("SDL_LockSurface")
M("SDL_UnlockSurface")
M("SDL_GetModState")
M("SDL_Delay")
M("SDL_Quit")
M("SDL_SetVideoMode")
M("SDL_EnableKeyRepeat")
M("SDL_EnableUNICODE")
M("SDL_VideoDriverName")
M("SDL_ListModes")
M("SDL_GetKeyState")
M("SDL_LoadBMP_RW")
M("SDL_RWFromFile")
M("SDL_SetColorKey")
M("SDL_WM_SetIcon")
M("SDL_MapRGB")
M("")
;
#undef M
SDLProcs sdl_proc;
static const char *LoadSdlDLL()
{
if (sdl_proc.SDL_Init != NULL)
return NULL;
if (!LoadLibraryList((Function *)(void *)&sdl_proc, sdl_files))
return "Unable to load sdl.dll";
return NULL;
}
#endif // DYNAMICALLY_LOADED_SDL
#ifdef UNIX
static void SdlAbort(int sig)
{
/* Own hand-made parachute for the cases of failed assertions. */
SDL_CALL SDL_Quit();
switch (sig) {
case SIGSEGV:
case SIGFPE:
signal(sig, SIG_DFL);
raise(sig);
break;
default:
break;
}
}
#endif
const char* SdlOpen(uint32 x)
{
#ifdef DYNAMICALLY_LOADED_SDL
{
const char *s = LoadSdlDLL();
if (s != NULL) return s;
}
#endif
if (_sdl_usage++ == 0) {
if (SDL_CALL SDL_Init(x) == -1)
return SDL_CALL SDL_GetError();
} else if (x != 0) {
if (SDL_CALL SDL_InitSubSystem(x) == -1)
return SDL_CALL SDL_GetError();
}
#ifdef UNIX
signal(SIGABRT, SdlAbort);
signal(SIGSEGV, SdlAbort);
signal(SIGFPE, SdlAbort);
#endif
return NULL;
}
void SdlClose(uint32 x)
{
if (x != 0)
SDL_CALL SDL_QuitSubSystem(x);
if (--_sdl_usage == 0) {
SDL_CALL SDL_Quit();
#ifdef UNIX
signal(SIGABRT, SIG_DFL);
signal(SIGSEGV, SIG_DFL);
signal(SIGFPE, SIG_DFL);
#endif
}
}
#endif
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