0aee49bdf8
This updates the copyright header to all be the same, which is pretty much an update of where to mail request for a copy of the GPL and the years of the MPD project. This also puts all committers under 'The Music Player Project' umbrella. These entries should go individually in the AUTHORS file, for consistancy.
77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
/*
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* Copyright (C) 2003-2009 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef PCM_BUFFER_H
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#define PCM_BUFFER_H
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#include <glib.h>
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/**
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* Manager for a temporary buffer which grows as needed. We could
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* allocate a new buffer every time pcm_convert() is called, but that
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* would put too much stress on the allocator.
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*/
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struct pcm_buffer {
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char *buffer;
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size_t size;
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};
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/**
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* Initialize the buffer, but don't allocate anything yet.
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*/
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static inline void
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pcm_buffer_init(struct pcm_buffer *buffer)
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{
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buffer->buffer = NULL;
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buffer->size = 0;
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}
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/**
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* Free resources. This function may be called more than once.
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*/
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static inline void
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pcm_buffer_deinit(struct pcm_buffer *buffer)
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{
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g_free(buffer->buffer);
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buffer->buffer = NULL;
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}
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/**
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* Get the buffer, and guarantee a minimum size. This buffer becomes
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* invalid with the next pcm_buffer_get() call.
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*/
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static inline void *
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pcm_buffer_get(struct pcm_buffer *buffer, size_t size)
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{
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if (buffer->size < size) {
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/* free the old buffer */
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g_free(buffer->buffer);
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/* allocate a new buffer; align at 64kB boundaries */
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buffer->size = (size | 0xffff) + 1;
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buffer->buffer = g_malloc(buffer->size);
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}
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return buffer->buffer;
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}
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#endif
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