forked from KolibriOS/kolibrios
129 lines
3.2 KiB
C
129 lines
3.2 KiB
C
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/*
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SDL_mixer: An audio mixer library based on the SDL library
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Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#ifdef OGG_MUSIC
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#include "dynamic_ogg.h"
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vorbis_loader vorbis = {
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0, NULL
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};
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#ifdef OGG_DYNAMIC
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int Mix_InitOgg()
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{
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if ( vorbis.loaded == 0 ) {
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vorbis.handle = SDL_LoadObject(OGG_DYNAMIC);
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if ( vorbis.handle == NULL ) {
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return -1;
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}
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vorbis.ov_clear =
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(int (*)(OggVorbis_File *))
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SDL_LoadFunction(vorbis.handle, "ov_clear");
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if ( vorbis.ov_clear == NULL ) {
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SDL_UnloadObject(vorbis.handle);
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return -1;
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}
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vorbis.ov_info =
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(vorbis_info *(*)(OggVorbis_File *,int))
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SDL_LoadFunction(vorbis.handle, "ov_info");
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if ( vorbis.ov_info == NULL ) {
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SDL_UnloadObject(vorbis.handle);
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return -1;
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}
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vorbis.ov_open_callbacks =
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(int (*)(void *, OggVorbis_File *, char *, long, ov_callbacks))
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SDL_LoadFunction(vorbis.handle, "ov_open_callbacks");
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if ( vorbis.ov_open_callbacks == NULL ) {
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SDL_UnloadObject(vorbis.handle);
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return -1;
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}
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vorbis.ov_pcm_total =
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(ogg_int64_t (*)(OggVorbis_File *,int))
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SDL_LoadFunction(vorbis.handle, "ov_pcm_total");
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if ( vorbis.ov_pcm_total == NULL ) {
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SDL_UnloadObject(vorbis.handle);
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return -1;
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}
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vorbis.ov_read =
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#ifdef OGG_USE_TREMOR
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(long (*)(OggVorbis_File *,char *,int,int *))
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#else
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(long (*)(OggVorbis_File *,char *,int,int,int,int,int *))
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#endif
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SDL_LoadFunction(vorbis.handle, "ov_read");
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if ( vorbis.ov_read == NULL ) {
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SDL_UnloadObject(vorbis.handle);
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return -1;
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}
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vorbis.ov_time_seek =
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#ifdef OGG_USE_TREMOR
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(long (*)(OggVorbis_File *,ogg_int64_t))
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#else
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(int (*)(OggVorbis_File *,double))
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#endif
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SDL_LoadFunction(vorbis.handle, "ov_time_seek");
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if ( vorbis.ov_time_seek == NULL ) {
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SDL_UnloadObject(vorbis.handle);
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return -1;
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}
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}
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++vorbis.loaded;
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return 0;
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}
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void Mix_QuitOgg()
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{
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if ( vorbis.loaded == 0 ) {
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return;
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}
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if ( vorbis.loaded == 1 ) {
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SDL_UnloadObject(vorbis.handle);
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}
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--vorbis.loaded;
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}
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#else
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int Mix_InitOgg()
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{
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if ( vorbis.loaded == 0 ) {
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vorbis.ov_clear = ov_clear;
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vorbis.ov_info = ov_info;
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vorbis.ov_open_callbacks = ov_open_callbacks;
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vorbis.ov_pcm_total = ov_pcm_total;
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vorbis.ov_read = ov_read;
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vorbis.ov_time_seek = ov_time_seek;
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}
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++vorbis.loaded;
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return 0;
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}
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void Mix_QuitOgg()
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{
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if ( vorbis.loaded == 0 ) {
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return;
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}
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if ( vorbis.loaded == 1 ) {
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}
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--vorbis.loaded;
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}
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#endif /* OGG_DYNAMIC */
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#endif /* OGG_MUSIC */
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