/project/jni/sdl_sound/extra_rwops.h
https://github.com/aichunyu/FFPlayer · C Header · 71 lines · 12 code · 11 blank · 48 comment · 0 complexity · 9a5d0af6811baee9b4a7c03b557ded4d MD5 · raw file
- /*
- * SDL_sound -- An abstract sound format decoding API.
- * Copyright (C) 2001 Ryan C. Gordon.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- /*
- * Some extra RWops that are needed or are just handy to have.
- *
- * Please see the file COPYING in the source's root directory.
- *
- * This file written by Ryan C. Gordon. (icculus@icculus.org)
- */
- #ifndef _INCLUDE_EXTRA_RWOPS_H_
- #define _INCLUDE_EXTRA_RWOPS_H_
- #include "SDL.h"
- #ifdef __cplusplus
- extern "C" {
- #endif
- /*
- * The Reference Counter RWops...
- *
- * This wraps another RWops with a reference counter. When you create a
- * reference counter RWops, it sets a counter to one. Everytime you call
- * RWops_RWRefCounter_new(), that's RWops's counter increments by one.
- * Everytime you call that RWops's close() method, the counter decrements
- * by one. If the counter hits zero, the original RWops's close() method
- * is called, and the reference counting wrapper deletes itself. The read,
- * write, and seek methods just pass through to the original.
- *
- * This is handy if you have two libraries (in the original case, SDL_sound
- * and SMPEG), who both want an SDL_RWops, and both want to close it when
- * they are finished. This resolves that contention. The user creates a
- * RWops, passes it to SDL_sound, which wraps it in a reference counter and
- * increments the number of references, and passes the wrapped RWops to
- * SMPEG. SMPEG "closes" this wrapped RWops when the MP3 has finished
- * playing, and SDL_sound then closes it, too. This second closing removes
- * the last reference, and the RWops is smoothly destructed.
- */
- /* Return a SDL_RWops that is a reference counting wrapper of (rw). */
- SDL_RWops *RWops_RWRefCounter_new(SDL_RWops *rw);
- /* Increment a reference counting RWops's refcount by one. */
- void RWops_RWRefCounter_addRef(SDL_RWops *rw);
- #ifdef __cplusplus
- }
- #endif
- #endif /* !defined _INCLUDE_EXTRA_RWOPS_H_ */
- /* end of extra_rwops.h ... */