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Move XChunk processors to ZoneCommon

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Jan
2021-03-16 20:42:48 +01:00
parent ca1329323b
commit f22012d282
33 changed files with 383 additions and 317 deletions
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src/ZoneCommon/Zone/XChunk/XChunkProcessorDeflate.cpp
+33
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#include "XChunkProcessorDeflate.h"
#include <zlib.h>
#include <zutil.h>
#include "XChunkException.h"
size_t XChunkProcessorDeflate::Process(int streamNumber, const uint8_t* input, const size_t inputLength, uint8_t* output, const size_t outputBufferSize)
{
z_stream stream{};
stream.zalloc = Z_NULL;
stream.zfree = Z_NULL;
stream.opaque = Z_NULL;
auto ret = deflateInit2(&stream, Z_BEST_COMPRESSION, Z_DEFLATED, -DEF_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY);
if (ret != Z_OK)
throw XChunkException("Initializing deflate failed.");
stream.avail_in = inputLength;
stream.next_in = input;
stream.avail_out = outputBufferSize;
stream.next_out = output;
ret = deflate(&stream, Z_FINISH);
if (ret != Z_STREAM_END)
throw XChunkException("Zone has invalid or unsupported compression. Deflate failed");
const size_t outputSize = stream.total_out;
deflateEnd(&stream);
return outputSize;
}