dynamic_mod.c
上传用户:nini_0081
上传日期:2022-07-21
资源大小:2628k
文件大小:7k
- /*
- SDL_mixer: An audio mixer library based on the SDL library
- Copyright (C) 1997-2009 Sam Lantinga
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- Sam Lantinga
- slouken@libsdl.org
- */
- #ifdef MOD_MUSIC
- #include "SDL_loadso.h"
- #include "dynamic_mod.h"
- mikmod_loader mikmod = {
- 0, NULL
- };
- #ifdef MOD_DYNAMIC
- int Mix_InitMOD()
- {
- if ( mikmod.loaded == 0 ) {
- mikmod.handle = SDL_LoadObject(MOD_DYNAMIC);
- if ( mikmod.handle == NULL ) {
- return -1;
- }
- mikmod.MikMod_Exit =
- (void (*)(void))
- SDL_LoadFunction(mikmod.handle, "MikMod_Exit");
- if ( mikmod.MikMod_Exit == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.MikMod_InfoDriver =
- (CHAR* (*)(void))
- SDL_LoadFunction(mikmod.handle, "MikMod_InfoDriver");
- if ( mikmod.MikMod_InfoDriver == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.MikMod_InfoLoader =
- (CHAR* (*)(void))
- SDL_LoadFunction(mikmod.handle, "MikMod_InfoLoader");
- if ( mikmod.MikMod_InfoLoader == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.MikMod_Init =
- (BOOL (*)(CHAR*))
- SDL_LoadFunction(mikmod.handle, "MikMod_Init");
- if ( mikmod.MikMod_Init == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.MikMod_RegisterAllLoaders =
- (void (*)(void))
- SDL_LoadFunction(mikmod.handle, "MikMod_RegisterAllLoaders");
- if ( mikmod.MikMod_RegisterAllLoaders == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.MikMod_RegisterDriver =
- (void (*)(struct MDRIVER*))
- SDL_LoadFunction(mikmod.handle, "MikMod_RegisterDriver");
- if ( mikmod.MikMod_RegisterDriver == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.MikMod_errno =
- (int*)
- SDL_LoadFunction(mikmod.handle, "MikMod_errno");
- if ( mikmod.MikMod_errno == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.MikMod_strerror =
- (char* (*)(int))
- SDL_LoadFunction(mikmod.handle, "MikMod_strerror");
- if ( mikmod.MikMod_strerror == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.Player_Active =
- (BOOL (*)(void))
- SDL_LoadFunction(mikmod.handle, "Player_Active");
- if ( mikmod.Player_Active == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.Player_Free =
- (void (*)(MODULE*))
- SDL_LoadFunction(mikmod.handle, "Player_Free");
- if ( mikmod.Player_Free == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.Player_LoadGeneric =
- (MODULE* (*)(MREADER*,int,BOOL))
- SDL_LoadFunction(mikmod.handle, "Player_LoadGeneric");
- if ( mikmod.Player_LoadGeneric == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.Player_SetPosition =
- (void (*)(UWORD))
- SDL_LoadFunction(mikmod.handle, "Player_SetPosition");
- if ( mikmod.Player_SetPosition == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.Player_SetVolume =
- (void (*)(SWORD))
- SDL_LoadFunction(mikmod.handle, "Player_SetVolume");
- if ( mikmod.Player_SetVolume == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.Player_Start =
- (void (*)(MODULE*))
- SDL_LoadFunction(mikmod.handle, "Player_Start");
- if ( mikmod.Player_Start == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.Player_Stop =
- (void (*)(void))
- SDL_LoadFunction(mikmod.handle, "Player_Stop");
- if ( mikmod.Player_Stop == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.VC_WriteBytes =
- (ULONG (*)(SBYTE*,ULONG))
- SDL_LoadFunction(mikmod.handle, "VC_WriteBytes");
- if ( mikmod.VC_WriteBytes == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.drv_nos =
- (MDRIVER*)
- SDL_LoadFunction(mikmod.handle, "drv_nos");
- if ( mikmod.drv_nos == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.md_device =
- (UWORD*)
- SDL_LoadFunction(mikmod.handle, "md_device");
- if ( mikmod.md_device == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.md_mixfreq =
- (UWORD*)
- SDL_LoadFunction(mikmod.handle, "md_mixfreq");
- if ( mikmod.md_mixfreq == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.md_mode =
- (UWORD*)
- SDL_LoadFunction(mikmod.handle, "md_mode");
- if ( mikmod.md_mode == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.md_musicvolume =
- (UBYTE*)
- SDL_LoadFunction(mikmod.handle, "md_musicvolume");
- if ( mikmod.md_musicvolume == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.md_pansep =
- (UBYTE*)
- SDL_LoadFunction(mikmod.handle, "md_pansep");
- if ( mikmod.md_pansep == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.md_reverb =
- (UBYTE*)
- SDL_LoadFunction(mikmod.handle, "md_reverb");
- if ( mikmod.md_reverb == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.md_sndfxvolume =
- (UBYTE*)
- SDL_LoadFunction(mikmod.handle, "md_sndfxvolume");
- if ( mikmod.md_sndfxvolume == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- mikmod.md_volume =
- (UBYTE*)
- SDL_LoadFunction(mikmod.handle, "md_volume");
- if ( mikmod.md_volume == NULL ) {
- SDL_UnloadObject(mikmod.handle);
- return -1;
- }
- }
- ++mikmod.loaded;
- return 0;
- }
- void Mix_QuitMOD()
- {
- if ( mikmod.loaded == 0 ) {
- return;
- }
- if ( mikmod.loaded == 1 ) {
- SDL_UnloadObject(mikmod.handle);
- }
- --mikmod.loaded;
- }
- #else
- int Mix_InitMOD()
- {
- if ( mikmod.loaded == 0 ) {
- mikmod.MikMod_Exit = MikMod_Exit;
- mikmod.MikMod_InfoDriver = MikMod_InfoDriver;
- mikmod.MikMod_InfoLoader = MikMod_InfoLoader;
- mikmod.MikMod_Init = MikMod_Init;
- mikmod.MikMod_RegisterAllLoaders = MikMod_RegisterAllLoaders;
- mikmod.MikMod_RegisterDriver = MikMod_RegisterDriver;
- mikmod.MikMod_errno = &MikMod_errno;
- mikmod.MikMod_strerror = MikMod_strerror;
- mikmod.Player_Active = Player_Active;
- mikmod.Player_Free = Player_Free;
- mikmod.Player_LoadGeneric = Player_LoadGeneric;
- mikmod.Player_SetPosition = Player_SetPosition;
- mikmod.Player_SetVolume = Player_SetVolume;
- mikmod.Player_Start = Player_Start;
- mikmod.Player_Stop = Player_Stop;
- mikmod.VC_WriteBytes = VC_WriteBytes;
- mikmod.drv_nos = &drv_nos;
- mikmod.md_device = &md_device;
- mikmod.md_mixfreq = &md_mixfreq;
- mikmod.md_mode = &md_mode;
- mikmod.md_musicvolume = &md_musicvolume;
- mikmod.md_pansep = &md_pansep;
- mikmod.md_reverb = &md_reverb;
- mikmod.md_sndfxvolume = &md_sndfxvolume;
- mikmod.md_volume = &md_volume;
- }
- ++mikmod.loaded;
- return 0;
- }
- void Mix_QuitMOD()
- {
- if ( mikmod.loaded == 0 ) {
- return;
- }
- if ( mikmod.loaded == 1 ) {
- }
- --mikmod.loaded;
- }
- #endif /* MOD_DYNAMIC */
- #endif /* MOD_MUSIC */