Subversion Repositories spk

#include "7Decoder.h"
#include "LzmaDecode.h"

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

unsigned char *LZMADecode_C ( unsigned char *inBuffer, size_t inSize, size_t *outSizeProcessed, int *result )
{
        const UInt32 kPropertiesSize = 5;
        Byte *properties;

    size_t inProcessed;
    CLzmaDecoderState state; 
//    int result;
        size_t outSizeProcessedLoc;
        size_t outSize = 0;
        Byte *outBuffer = NULL;
        int i = 0;

        properties = (Byte *)malloc(sizeof(Byte *) * kPropertiesSize);
        *outSizeProcessed = 0;

        // read properties
        memcpy ( properties, inBuffer, 5 );
        inSize -= 5;
        inBuffer += 5;

        // read size
        for ( i = 0; i < 8; i++ )
        {
                Byte b = inBuffer[0];
                inBuffer++;
                inSize--;

                outSize |= ((size_t)b) << (8 * i);
        }

        outBuffer = (Byte *)malloc ( sizeof(Byte) * outSize );


    if ( LzmaDecodeProperties ( &state.Properties, properties, kPropertiesSize ) != LZMA_RESULT_OK )
        {
                if ( result )
                        *result = SZE_FAIL;
                return NULL;
        }

    state.Probs = (CProb *)malloc ( LzmaGetNumProbs ( &state.Properties ) * sizeof (CProb) );
    if (state.Probs == 0)
        {
                if ( result )
                        *result = SZE_OUTOFMEMORY;
                return NULL;
        }

    int r = LzmaDecode(&state,
        inBuffer, inSize, &inProcessed,
        outBuffer, outSize, &outSizeProcessedLoc);

    *outSizeProcessed = (size_t)outSizeProcessedLoc;
        free ( state.Probs );

    if ( r == LZMA_RESULT_DATA_ERROR )
        {
                if ( result )
                        *result = SZE_DATA_ERROR;
                return NULL;
        }
    if ( r != LZMA_RESULT_OK )
        {
                if ( result )
                        *result = SZE_FAIL;
                return NULL;
        }

        if ( result )
                *result = SZ_OK;
        return outBuffer;
}