70 lines
973 B
C++
70 lines
973 B
C++
#include "SoundBlock.h"
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#include <memory.h>
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#include <malloc.h>
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SoundBlock::SoundBlock()
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{
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data = 0;
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size = 0;
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next = 0;
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prev = 0;
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start = 0;
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used = 0;
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}
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SoundBlock::~SoundBlock()
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{
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if (data) free(data);
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}
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void SoundBlock::SetData(void *new_data, size_t new_size)
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{
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if (!data) data = malloc(new_size);
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else if (new_size > size)
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{
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data = realloc(data, new_size);
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if (!data) data = malloc(new_size);
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else size = new_size;
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}
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if (data)
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{
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memcpy(data, new_data, new_size);
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used = new_size;
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}
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else
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{
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used = 0;
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}
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start = 0;
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}
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void SoundBlock::Advance(size_t d)
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{
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used -= d;
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start += d;
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}
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const void *SoundBlock::GetData()
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{
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return (char*)data + start;
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}
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size_t SoundBlock::GetDataSize()
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{
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return used;
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}
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size_t SoundBlock::Dump(void * out, size_t out_size)
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{
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const void * src = GetData();
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if (out_size > used) out_size = used;
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memcpy(out, src, out_size);
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Advance(out_size);
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return out_size;
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}
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void SoundBlock::Clear()
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{
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used = 0;
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} |