63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
#include "PolyVoxCore/Impl/Compression.h"
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#include "PolyVoxCore/Impl/ErrorHandling.h"
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// The miniz library is supplied only as a single .c file without a header.
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// Apparently the only way to use it would then be to #include it directly
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// which is what the examples do.
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#include "PolyVoxCore/Impl/miniz.c"
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Data polyvox_compress(Data src)
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{
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POLYVOX_ASSERT(src.ptr != 0, "Source data cannot be null");
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unsigned char* buffer;
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mz_ulong compressedDataLength = compressBound(src.length);
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buffer = new unsigned char[compressedDataLength];
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int iCompressionResult = compress(buffer, &compressedDataLength, static_cast<const unsigned char*>(src.ptr), src.length);
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// Debug more checking
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POLYVOX_ASSERT(iCompressionResult == Z_OK, "Data compression failed.");
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// Release mode checking
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if (iCompressionResult != Z_OK)
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{
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delete[] buffer;
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POLYVOX_THROW(std::runtime_error, "Data compression failed.");
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}
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Data dst;
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dst.length = compressedDataLength;
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dst.ptr = new uint8_t[dst.length];
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memcpy(dst.ptr, buffer, compressedDataLength);
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delete[] buffer;
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return dst;
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}
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void polyvox_decompress(Data src, Data dst)
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{
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/*unsigned char* buffer;
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mz_ulong uncompressedDataLength = 1000000;
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buffer = new unsigned char[uncompressedDataLength];*/
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int iUncompressionResult = uncompress(dst.ptr, &dst.length, src.ptr, src.length);
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if (iUncompressionResult != Z_OK)
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{
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//delete[] buffer;
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POLYVOX_THROW(std::runtime_error, "Data decompression failed.");
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}
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/*Data dst;
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dst.length = uncompressedDataLength;
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dst.ptr = new uint8_t[dst.length];
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memcpy(dst.ptr, buffer, uncompressedDataLength);
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delete[] buffer;*/
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//return dst;
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} |