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3DSGuy
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
#ifndef __STREAM_H__
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#define __STREAM_H__
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#include <stdio.h>
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#include "types.h"
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typedef struct
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{
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FILE* infile;
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u32 infileposition;
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u8* inbuffer;
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u32 inbuffersize;
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u32 inbufferavailable;
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u32 inbufferpos;
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} stream_in_context;
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typedef struct
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{
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FILE* outfile;
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u8* outbuffer;
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u32 outbuffersize;
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u32 outbufferpos;
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} stream_out_context;
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// create/destroy
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void stream_in_init(stream_in_context* ctx);
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void stream_in_allocate(stream_in_context* ctx, u32 buffersize, FILE* file);
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void stream_in_destroy(stream_in_context* ctx);
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void stream_out_init(stream_out_context* ctx);
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void stream_out_allocate(stream_out_context* ctx, u32 buffersize, FILE* file);
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void stream_out_destroy(stream_out_context* ctx);
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// read/write operations
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int stream_in_byte(stream_in_context* ctx, u8* byte);
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void stream_in_seek(stream_in_context* ctx, u32 position);
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void stream_in_reseek(stream_in_context* ctx);
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int stream_out_byte(stream_out_context* ctx, u8 byte);
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int stream_out_buffer(stream_out_context* ctx, const void* buffer, u32 size);
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int stream_out_flush(stream_out_context* ctx);
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void stream_out_seek(stream_out_context* ctx, u32 position);
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void stream_out_skip(stream_out_context* ctx, u32 size);
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void stream_out_position(stream_out_context* ctx, u32* position);
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#endif // __STREAM_H__
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