mirror of
https://github.com/JGRennison/OpenTTD-patches.git
synced 2024-11-02 09:40:35 +00:00
142 lines
2.3 KiB
C++
142 lines
2.3 KiB
C++
/* $Id$ */
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/** @file sdl.cpp Implementation of SDL support. */
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#include "stdafx.h"
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#ifdef WITH_SDL
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#include "openttd.h"
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#include "sdl.h"
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#include <SDL.h>
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#ifdef UNIX
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#include <signal.h>
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#ifdef __MORPHOS__
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// The system supplied definition of SIG_DFL is wrong on MorphOS
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#undef SIG_DFL
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#define SIG_DFL (void (*)(int))0
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#endif
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#endif
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static int _sdl_usage;
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#ifdef DYNAMICALLY_LOADED_SDL
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#include "win32.h"
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#define M(x) x "\0"
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static const char sdl_files[] =
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M("sdl.dll")
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M("SDL_Init")
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M("SDL_InitSubSystem")
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M("SDL_GetError")
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M("SDL_QuitSubSystem")
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M("SDL_UpdateRect")
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M("SDL_UpdateRects")
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M("SDL_SetColors")
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M("SDL_WM_SetCaption")
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M("SDL_ShowCursor")
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M("SDL_FreeSurface")
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M("SDL_PollEvent")
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M("SDL_WarpMouse")
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M("SDL_GetTicks")
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M("SDL_OpenAudio")
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M("SDL_PauseAudio")
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M("SDL_CloseAudio")
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M("SDL_LockSurface")
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M("SDL_UnlockSurface")
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M("SDL_GetModState")
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M("SDL_Delay")
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M("SDL_Quit")
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M("SDL_SetVideoMode")
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M("SDL_EnableKeyRepeat")
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M("SDL_EnableUNICODE")
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M("SDL_VideoDriverName")
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M("SDL_ListModes")
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M("SDL_GetKeyState")
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M("SDL_LoadBMP_RW")
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M("SDL_RWFromFile")
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M("SDL_SetColorKey")
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M("SDL_WM_SetIcon")
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M("SDL_MapRGB")
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M("")
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;
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#undef M
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SDLProcs sdl_proc;
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static const char *LoadSdlDLL()
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{
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if (sdl_proc.SDL_Init != NULL)
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return NULL;
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if (!LoadLibraryList((Function *)(void *)&sdl_proc, sdl_files))
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return "Unable to load sdl.dll";
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return NULL;
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}
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#endif // DYNAMICALLY_LOADED_SDL
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#ifdef UNIX
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static void SdlAbort(int sig)
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{
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/* Own hand-made parachute for the cases of failed assertions. */
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SDL_CALL SDL_Quit();
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switch (sig) {
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case SIGSEGV:
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case SIGFPE:
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signal(sig, SIG_DFL);
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raise(sig);
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break;
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default:
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break;
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}
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}
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#endif
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const char* SdlOpen(uint32 x)
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{
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#ifdef DYNAMICALLY_LOADED_SDL
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{
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const char *s = LoadSdlDLL();
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if (s != NULL) return s;
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}
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#endif
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if (_sdl_usage++ == 0) {
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if (SDL_CALL SDL_Init(x) == -1)
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return SDL_CALL SDL_GetError();
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} else if (x != 0) {
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if (SDL_CALL SDL_InitSubSystem(x) == -1)
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return SDL_CALL SDL_GetError();
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}
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#ifdef UNIX
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signal(SIGABRT, SdlAbort);
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signal(SIGSEGV, SdlAbort);
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signal(SIGFPE, SdlAbort);
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#endif
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return NULL;
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}
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void SdlClose(uint32 x)
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{
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if (x != 0)
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SDL_CALL SDL_QuitSubSystem(x);
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if (--_sdl_usage == 0) {
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SDL_CALL SDL_Quit();
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#ifdef UNIX
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signal(SIGABRT, SIG_DFL);
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signal(SIGSEGV, SIG_DFL);
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signal(SIGFPE, SIG_DFL);
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#endif
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}
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}
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#endif
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