77 lines
3.0 KiB
C
77 lines
3.0 KiB
C
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/************************************************************************
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* Copyright (c) 2005-2007 tok@openlinux.org.uk *
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* *
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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 *
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* damages arising from the use of this software. *
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* *
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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 *
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* it freely, subject to the following restrictions: *
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* *
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* 1. The origin of this software must not be misrepresented; you must *
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* not claim that you wrote the original software. If you use this *
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* software in a product, an acknowledgment in the product documentation *
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* would be appreciated but is not required. *
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* *
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* 2. Altered source versions must be plainly marked as such, and must *
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* not be misrepresented as being the original software. *
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* *
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* 3. This notice may not be removed or altered from any source *
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* distribution. *
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************************************************************************/
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#ifndef SOUND_FX_CACHE_H
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#define SOUND_FX_CACHE_H
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#ifdef WITH_SOUND
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#include <map>
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#include <string>
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#include <SDL_mixer.h>
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#include "fx_sdt.h"
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namespace Audio {
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struct ChunkId {
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std::string src_file;
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size_t idx_in_file;
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ChunkId(const std::string & file, const size_t idx) :
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src_file(file), idx_in_file(idx) {}
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bool operator == (const ChunkId & o) const {
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return (idx_in_file == o.idx_in_file && src_file == o.src_file);
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}
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bool operator < (const ChunkId & o) const {
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if (idx_in_file < o.idx_in_file)
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return true;
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if (idx_in_file > o.idx_in_file)
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return false;
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return src_file < o.src_file;
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}
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};
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struct ChunkData {
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Uint8 * mem_buf;
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Mix_Chunk * chunk;
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size_t ref;
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ChunkData(Uint8 * m, Mix_Chunk * c, size_t r = 1) :
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mem_buf(m), chunk(c), ref(r) {}
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ChunkData(const ChunkData & o) :
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mem_buf(o.mem_buf), chunk(o.chunk), ref(o.ref) {}
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};
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class AudioChunkCache {
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public:
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typedef std::map< ChunkId, ChunkData > CacheType;
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CacheType cached;
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ChunkData & getChunk(std::string & file, size_t idx);
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OpenGTA::SoundsDB * getDB(std::string db_file);
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private:
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void prepareDB(std::string db_file);
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ChunkData loadChunk(std::string & file, size_t idx);
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typedef std::map< std::string, OpenGTA::SoundsDB* > LookupCache;
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LookupCache lookup;
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};
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}
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#endif
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#endif
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