520 lines
16 KiB
C++
520 lines
16 KiB
C++
|
// Copyright 2020 Phyronnaz
|
||
|
|
|
||
|
|
#include "VoxelUtilities/VoxelSerializationUtilities.h"
|
||
|
|
#include "VoxelMaterial.h"
|
||
|
|
#include "VoxelMinimal.h"
|
||
|
|
#include "VoxelSettings.h"
|
||
|
|
|
||
|
|
#include "Serialization/LargeMemoryWriter.h"
|
||
|
|
|
||
|
|
THIRD_PARTY_INCLUDES_START
|
||
|
|
#include "ThirdParty/zlib/1.2.12/include/zlib.h"
|
||
|
|
THIRD_PARTY_INCLUDES_END
|
||
|
|
|
||
|
|
template<typename T>
|
||
|
|
FORCEINLINE FArchive& operator<<(FArchive& Ar, TVoxelValueImpl<T>& Value)
|
||
|
|
{
|
||
|
|
Ar << Value.GetStorage();
|
||
|
|
return Ar;
|
||
|
|
}
|
||
|
|
|
||
|
|
void FVoxelSerializationUtilities::SerializeValues(FArchive& Archive, TNoGrowArray<FVoxelValue>& Values, uint32 ValueConfigFlag, FVoxelSerializationVersion::Type VoxelCustomVersion)
|
||
|
|
{
|
||
|
|
VOXEL_ASYNC_FUNCTION_COUNTER();
|
||
|
|
|
||
|
|
if (Archive.IsLoading())
|
||
|
|
{
|
||
|
|
if (VoxelCustomVersion == FVoxelSerializationVersion::BeforeCustomVersionWasAdded)
|
||
|
|
{
|
||
|
|
TArray<FVoxelValue16> CompatValues;
|
||
|
|
Archive << CompatValues;
|
||
|
|
Values = FVoxelValueConverter::ConvertValues(MoveTemp(CompatValues));
|
||
|
|
}
|
||
|
|
else if (VoxelCustomVersion < FVoxelSerializationVersion::RemoveEnableVoxelSpawnedActorsEnableVoxelGrass)
|
||
|
|
{
|
||
|
|
TArray<FVoxelValue16> CompatValues;
|
||
|
|
CompatValues.BulkSerialize(Archive);
|
||
|
|
for (auto& Value : CompatValues)
|
||
|
|
{
|
||
|
|
Value.GetStorage() = FVoxelValue16::ClampToStorage(2 * Value.GetStorage());
|
||
|
|
}
|
||
|
|
Values = FVoxelValueConverter::ConvertValues(MoveTemp(CompatValues));
|
||
|
|
}
|
||
|
|
else if (VoxelCustomVersion < FVoxelSerializationVersion::ValueConfigFlagAndSaveGUIDs)
|
||
|
|
{
|
||
|
|
TArray<FVoxelValue16> CompatValues;
|
||
|
|
CompatValues.BulkSerialize(Archive);
|
||
|
|
Values = FVoxelValueConverter::ConvertValues(MoveTemp(CompatValues));
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
int32 ValuesSize;
|
||
|
|
Archive << ValuesSize;
|
||
|
|
|
||
|
|
check(ValueConfigFlag);
|
||
|
|
if (ValueConfigFlag & EVoxelValueConfigFlag::EightBitsValue)
|
||
|
|
{
|
||
|
|
check(!(ValueConfigFlag & EVoxelValueConfigFlag::SixteenBitsValue));
|
||
|
|
TArray<FVoxelValue8> CompatValues;
|
||
|
|
CompatValues.Empty(ValuesSize);
|
||
|
|
CompatValues.SetNumUninitialized(ValuesSize);
|
||
|
|
Archive.Serialize(CompatValues.GetData(), ValuesSize * sizeof(FVoxelValue8));
|
||
|
|
Values = FVoxelValueConverter::ConvertValues(MoveTemp(CompatValues));
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
check(ValueConfigFlag & EVoxelValueConfigFlag::SixteenBitsValue);
|
||
|
|
TArray<FVoxelValue16> CompatValues;
|
||
|
|
CompatValues.Empty(ValuesSize);
|
||
|
|
CompatValues.SetNumUninitialized(ValuesSize);
|
||
|
|
Archive.Serialize(CompatValues.GetData(), ValuesSize * sizeof(FVoxelValue16));
|
||
|
|
Values = FVoxelValueConverter::ConvertValues(MoveTemp(CompatValues));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (Archive.IsSaving())
|
||
|
|
{
|
||
|
|
int32 ValuesSize = Values.Num();
|
||
|
|
Archive << ValuesSize;
|
||
|
|
Archive.Serialize(Values.GetData(), ValuesSize * sizeof(FVoxelValue));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void FVoxelSerializationUtilities::SerializeMaterials(FArchive& Archive, TNoGrowArray<FVoxelMaterial>& Materials, uint32 MaterialConfigFlag, FVoxelSerializationVersion::Type VoxelCustomVersion)
|
||
|
|
{
|
||
|
|
VOXEL_ASYNC_FUNCTION_COUNTER();
|
||
|
|
|
||
|
|
static_assert(sizeof(FVoxelMaterial) == FVoxelMaterial::NumChannels, "Serialization below will be broken");
|
||
|
|
|
||
|
|
if (Archive.IsLoading())
|
||
|
|
{
|
||
|
|
enum ELegacyVoxelMaterialConfigFlag : uint32
|
||
|
|
{
|
||
|
|
LegacyEnableVoxelColors = 0x01,
|
||
|
|
LegacyEnableVoxelSpawnedActors = 0x02,
|
||
|
|
LegacyEnableVoxelGrass = 0x04,
|
||
|
|
LegacyDisableIndex = 0x10
|
||
|
|
};
|
||
|
|
|
||
|
|
const auto LegacySerializeCompat = [](FArchive& Ar, uint32 ConfigFlags)
|
||
|
|
{
|
||
|
|
check(Ar.IsLoading());
|
||
|
|
|
||
|
|
uint8 Index = 0;
|
||
|
|
uint8 R = 0;
|
||
|
|
uint8 G = 0;
|
||
|
|
uint8 B = 0;
|
||
|
|
uint8 VoxelActor = 0;
|
||
|
|
uint8 VoxelGrass = 0;
|
||
|
|
|
||
|
|
if (!(ConfigFlags & LegacyDisableIndex))
|
||
|
|
{
|
||
|
|
Ar << Index;
|
||
|
|
}
|
||
|
|
if (ConfigFlags & LegacyEnableVoxelColors)
|
||
|
|
{
|
||
|
|
Ar << R;
|
||
|
|
Ar << G;
|
||
|
|
Ar << B;
|
||
|
|
}
|
||
|
|
if (ConfigFlags & LegacyEnableVoxelSpawnedActors)
|
||
|
|
{
|
||
|
|
Ar << VoxelActor;
|
||
|
|
}
|
||
|
|
if (ConfigFlags & LegacyEnableVoxelGrass)
|
||
|
|
{
|
||
|
|
Ar << VoxelGrass;
|
||
|
|
}
|
||
|
|
|
||
|
|
FVoxelMaterial Material(ForceInit);
|
||
|
|
Material.SetA(Index);
|
||
|
|
Material.SetR(R);
|
||
|
|
Material.SetG(G);
|
||
|
|
Material.SetB(B);
|
||
|
|
|
||
|
|
return Material;
|
||
|
|
};
|
||
|
|
|
||
|
|
if (VoxelCustomVersion == FVoxelSerializationVersion::BeforeCustomVersionWasAdded)
|
||
|
|
{
|
||
|
|
int32 MaterialsSize;
|
||
|
|
Archive << MaterialsSize;
|
||
|
|
Materials.Empty(MaterialsSize);
|
||
|
|
Materials.SetNumUninitialized(MaterialsSize);
|
||
|
|
for (int32 I = 0; I < MaterialsSize; I++)
|
||
|
|
{
|
||
|
|
Materials[I] = LegacySerializeCompat(Archive, MaterialConfigFlag);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (VoxelCustomVersion < FVoxelSerializationVersion::RemoveEnableVoxelSpawnedActorsEnableVoxelGrass)
|
||
|
|
{
|
||
|
|
int32 MaterialsSize;
|
||
|
|
Archive << MaterialsSize;
|
||
|
|
Materials.Empty(MaterialsSize);
|
||
|
|
Materials.SetNumUninitialized(MaterialsSize);
|
||
|
|
for (int32 I = 0; I < MaterialsSize; I++)
|
||
|
|
{
|
||
|
|
Materials[I] = LegacySerializeCompat(Archive, MaterialConfigFlag);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if (MaterialConfigFlag == GVoxelMaterialConfigFlag)
|
||
|
|
{
|
||
|
|
int32 MaterialsSize;
|
||
|
|
Archive << MaterialsSize;
|
||
|
|
Materials.Empty(MaterialsSize);
|
||
|
|
Materials.SetNumUninitialized(MaterialsSize);
|
||
|
|
Archive.Serialize(Materials.GetData(), MaterialsSize * sizeof(FVoxelMaterial));
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
int32 MaterialsSize;
|
||
|
|
Archive << MaterialsSize;
|
||
|
|
Materials.Empty(MaterialsSize);
|
||
|
|
Materials.SetNumUninitialized(MaterialsSize);
|
||
|
|
for (int32 I = 0; I < MaterialsSize; I++)
|
||
|
|
{
|
||
|
|
Materials[I] = FVoxelMaterial::SerializeWithCustomConfig(Archive, MaterialConfigFlag);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (Archive.IsSaving())
|
||
|
|
{
|
||
|
|
int32 MaterialsSize = Materials.Num();
|
||
|
|
Archive << MaterialsSize;
|
||
|
|
Archive.Serialize(Materials.GetData(), MaterialsSize * sizeof(FVoxelMaterial));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
namespace FVoxelSerializationUtilities
|
||
|
|
{
|
||
|
|
constexpr int64 MaxChunkSize = MAX_int32; // Could be uint32, but let's not take any risk of overflow
|
||
|
|
constexpr int64 MaxNumChunks = 16; // That's 32GB
|
||
|
|
|
||
|
|
struct FHeader
|
||
|
|
{
|
||
|
|
// Need to store a special flag to tell DecompressData this is a 64 bit archive following the new format
|
||
|
|
const int32 LegacyFlag = -1;
|
||
|
|
// Sanity check
|
||
|
|
const uint32 Magic = 0xDEADBEEF;
|
||
|
|
|
||
|
|
// Sanity check
|
||
|
|
int64 CompressedSize = 0;
|
||
|
|
// To pre-allocate buffer
|
||
|
|
int64 UncompressedSize = 0;
|
||
|
|
|
||
|
|
uint32 Flags = 0;
|
||
|
|
uint32 NumChunks = 0;
|
||
|
|
|
||
|
|
TVoxelStaticArray<uint32, MaxNumChunks> ChunksCompressedSize{ ForceInit };
|
||
|
|
};
|
||
|
|
static_assert(sizeof(FHeader) == 4 + 4 + 8 + 8 + 4 + 4 + MaxNumChunks * 4, "");
|
||
|
|
}
|
||
|
|
|
||
|
|
void FVoxelSerializationUtilities::CompressData(
|
||
|
|
const uint8* const UncompressedData,
|
||
|
|
const int64 UncompressedDataNum,
|
||
|
|
TArray<uint8>& OutCompressedData,
|
||
|
|
EVoxelCompressionLevel::Type InCompressionLevel)
|
||
|
|
{
|
||
|
|
VOXEL_ASYNC_FUNCTION_COUNTER();
|
||
|
|
|
||
|
|
const double TotalStartTime = FPlatformTime::Seconds();
|
||
|
|
|
||
|
|
if (UncompressedDataNum == 0 || !ensure(UncompressedData))
|
||
|
|
{
|
||
|
|
OutCompressedData.Empty();
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
const auto GetCompressionLevel = [&]()
|
||
|
|
{
|
||
|
|
int32 CompressionLevel = InCompressionLevel;
|
||
|
|
if (CompressionLevel == EVoxelCompressionLevel::VoxelDefault)
|
||
|
|
{
|
||
|
|
CompressionLevel = GetDefault<UVoxelSettings>()->DefaultCompressionLevel;
|
||
|
|
}
|
||
|
|
CompressionLevel = FMath::Clamp(CompressionLevel, -1, 9);
|
||
|
|
static_assert(Z_NO_COMPRESSION == 0, "");
|
||
|
|
static_assert(Z_BEST_COMPRESSION == 9, "");
|
||
|
|
return CompressionLevel;
|
||
|
|
};
|
||
|
|
const int32 CompressionLevel = GetCompressionLevel();
|
||
|
|
|
||
|
|
const int32 NumChunks = FVoxelUtilities::DivideCeil64(UncompressedDataNum, MaxChunkSize);
|
||
|
|
check(0 < NumChunks && NumChunks < MaxNumChunks);
|
||
|
|
|
||
|
|
struct FChunk
|
||
|
|
{
|
||
|
|
int64 Start = 0;
|
||
|
|
int64 Size = 0;
|
||
|
|
uLong CompressedSize = 0;
|
||
|
|
};
|
||
|
|
TArray<FChunk, TFixedAllocator<MaxNumChunks>> Chunks;
|
||
|
|
|
||
|
|
// Fill chunks
|
||
|
|
for (int32 ChunkIndex = 0; ChunkIndex < NumChunks; ChunkIndex++)
|
||
|
|
{
|
||
|
|
auto& NewChunk = Chunks.Emplace_GetRef();
|
||
|
|
NewChunk.Start = ChunkIndex * MaxChunkSize;
|
||
|
|
NewChunk.Size = FMath::Min(MaxChunkSize, UncompressedDataNum - ChunkIndex * MaxChunkSize);
|
||
|
|
}
|
||
|
|
check(Chunks.Last().Start + Chunks.Last().Size == UncompressedDataNum);
|
||
|
|
|
||
|
|
// Compute estimated compressed size
|
||
|
|
int64 TotalCompressedSizeBound = 0;
|
||
|
|
for (auto& Chunk : Chunks)
|
||
|
|
{
|
||
|
|
Chunk.CompressedSize = compressBound(Chunk.Size);
|
||
|
|
TotalCompressedSizeBound += Chunk.CompressedSize;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Allocate memory
|
||
|
|
TArray64<uint8> CompressedData;
|
||
|
|
CompressedData.SetNumUninitialized(TotalCompressedSizeBound);
|
||
|
|
|
||
|
|
FHeader Header;
|
||
|
|
|
||
|
|
int64 TotalCompressedSize = 0;
|
||
|
|
double CompressionTime = 0;
|
||
|
|
|
||
|
|
// Compress chunks
|
||
|
|
for (int32 ChunkIndex = 0; ChunkIndex < NumChunks; ChunkIndex++)
|
||
|
|
{
|
||
|
|
FChunk& Chunk = Chunks[ChunkIndex];
|
||
|
|
|
||
|
|
const double StartTime = FPlatformTime::Seconds();
|
||
|
|
const auto Result = compress2(CompressedData.GetData() + TotalCompressedSize, &Chunk.CompressedSize, UncompressedData + Chunk.Start, Chunk.Size, CompressionLevel);
|
||
|
|
const double EndTime = FPlatformTime::Seconds();
|
||
|
|
|
||
|
|
if (!ensureMsgf(Result == Z_OK, TEXT("Compression failed: %d"), Result))
|
||
|
|
{
|
||
|
|
CompressedData.Reset();
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
CompressionTime += EndTime - StartTime;
|
||
|
|
TotalCompressedSize += Chunk.CompressedSize;
|
||
|
|
|
||
|
|
Header.ChunksCompressedSize[ChunkIndex] = Chunk.CompressedSize;
|
||
|
|
}
|
||
|
|
check(TotalCompressedSize <= TotalCompressedSizeBound);
|
||
|
|
checkf(TotalCompressedSize < MAX_int32 - sizeof(FHeader), TEXT("Compressed data overflow: %lld"), TotalCompressedSize);
|
||
|
|
|
||
|
|
// Fill header
|
||
|
|
Header.CompressedSize = TotalCompressedSize;
|
||
|
|
Header.UncompressedSize = UncompressedDataNum;
|
||
|
|
Header.NumChunks = NumChunks;
|
||
|
|
|
||
|
|
// Write final data
|
||
|
|
OutCompressedData.SetNumUninitialized(sizeof(FHeader) + TotalCompressedSize);
|
||
|
|
FMemory::Memcpy(OutCompressedData.GetData(), &Header, sizeof(FHeader));
|
||
|
|
FMemory::Memcpy(OutCompressedData.GetData() + sizeof(FHeader), CompressedData.GetData(), TotalCompressedSize);
|
||
|
|
|
||
|
|
// Log time
|
||
|
|
|
||
|
|
const double TotalEndTime = FPlatformTime::Seconds();
|
||
|
|
|
||
|
|
const double UncompressedSizeMB = double(UncompressedDataNum) / double(1 << 20);
|
||
|
|
const double CompressedSizeMB = double(TotalCompressedSize) / double(1 << 20);
|
||
|
|
|
||
|
|
const double TotalTime = TotalEndTime - TotalStartTime;
|
||
|
|
|
||
|
|
LOG_VOXEL(Log, TEXT("Compressed %f MB in %fs (%f MB/s). Compressed Size: %f MB (%f%%). Compression: %fs (%f%%). Num Chunks: %d."),
|
||
|
|
UncompressedSizeMB,
|
||
|
|
TotalTime,
|
||
|
|
UncompressedSizeMB / TotalTime,
|
||
|
|
CompressedSizeMB,
|
||
|
|
100 * CompressedSizeMB / UncompressedSizeMB,
|
||
|
|
CompressionTime,
|
||
|
|
100 * CompressionTime / TotalTime,
|
||
|
|
NumChunks);
|
||
|
|
}
|
||
|
|
|
||
|
|
void FVoxelSerializationUtilities::CompressData(FLargeMemoryWriter& UncompressedData, TArray<uint8>& CompressedData, EVoxelCompressionLevel::Type CompressionLevel)
|
||
|
|
{
|
||
|
|
// Tell and not TotalSize: TotalSize returns the total memory allocated by the writer, which might be bigger if AllocatedMemory is too big
|
||
|
|
CompressData(UncompressedData.GetData(), UncompressedData.Tell(), CompressedData, CompressionLevel);
|
||
|
|
}
|
||
|
|
|
||
|
|
bool FVoxelSerializationUtilities::DecompressData(const TArray<uint8>& CompressedData, TArray64<uint8>& UncompressedData)
|
||
|
|
{
|
||
|
|
VOXEL_ASYNC_FUNCTION_COUNTER();
|
||
|
|
|
||
|
|
const double TotalStartTime = FPlatformTime::Seconds();
|
||
|
|
|
||
|
|
if (CompressedData.Num() == 0)
|
||
|
|
{
|
||
|
|
UncompressedData.Empty();
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
int32 Flag;
|
||
|
|
FMemory::Memcpy(&Flag, CompressedData.GetData(), sizeof(Flag));
|
||
|
|
|
||
|
|
if (Flag == -1)
|
||
|
|
{
|
||
|
|
// New 64 bit archive
|
||
|
|
|
||
|
|
if (!ensure(CompressedData.Num() >= sizeof(FHeader)))
|
||
|
|
{
|
||
|
|
UncompressedData.Empty();
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
FHeader Header;
|
||
|
|
FMemory::Memcpy(&Header, CompressedData.GetData(), sizeof(FHeader));
|
||
|
|
|
||
|
|
check(Header.LegacyFlag == -1);
|
||
|
|
if (!ensureMsgf(Header.Magic == FHeader().Magic, TEXT("Magic was %x"), Header.Magic))
|
||
|
|
{
|
||
|
|
UncompressedData.Empty();
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!ensureMsgf(Header.CompressedSize == CompressedData.Num() - sizeof(FHeader), TEXT("Archive is saying its size is %lld, but it's %lld"), Header.CompressedSize, CompressedData.Num() - sizeof(FHeader)))
|
||
|
|
{
|
||
|
|
UncompressedData.Empty();
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!ensureMsgf(Header.NumChunks <= MaxNumChunks, TEXT("Header.NumChunks was %u"), Header.NumChunks))
|
||
|
|
{
|
||
|
|
UncompressedData.Empty();
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Allocate memory
|
||
|
|
UncompressedData.SetNumUninitialized(Header.UncompressedSize);
|
||
|
|
|
||
|
|
int64 TotalCompressedSize = 0;
|
||
|
|
int64 TotalUncompressedSize = 0;
|
||
|
|
|
||
|
|
double DecompressionTime = 0;
|
||
|
|
|
||
|
|
// Decompress all chunks
|
||
|
|
for (uint32 ChunkIndex = 0; ChunkIndex < Header.NumChunks; ChunkIndex++)
|
||
|
|
{
|
||
|
|
const uint32 ChunkCompressedSize = Header.ChunksCompressedSize[ChunkIndex];
|
||
|
|
if (!ensureMsgf(TotalCompressedSize + ChunkCompressedSize <= Header.CompressedSize, TEXT("Decompression overflow: Compressed size = %lld, Already processed = %lld, Chunk = %u"),
|
||
|
|
Header.CompressedSize, TotalCompressedSize, ChunkCompressedSize))
|
||
|
|
{
|
||
|
|
UncompressedData.Empty();
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
uLong UncompressedSize = FMath::Min<int64>(MaxChunkSize, Header.UncompressedSize - TotalUncompressedSize);
|
||
|
|
|
||
|
|
const double StartTime = FPlatformTime::Seconds();
|
||
|
|
const auto Result = uncompress(
|
||
|
|
UncompressedData.GetData() + TotalUncompressedSize, &UncompressedSize,
|
||
|
|
CompressedData.GetData() + sizeof(FHeader) + TotalCompressedSize, ChunkCompressedSize);
|
||
|
|
const double EndTime = FPlatformTime::Seconds();
|
||
|
|
|
||
|
|
if (!ensureMsgf(Result == Z_OK, TEXT("Decompression failed: %d"), Result))
|
||
|
|
{
|
||
|
|
UncompressedData.Empty();
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
TotalCompressedSize += ChunkCompressedSize;
|
||
|
|
TotalUncompressedSize += UncompressedSize;
|
||
|
|
|
||
|
|
DecompressionTime += EndTime - StartTime;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!ensureMsgf(TotalCompressedSize == Header.CompressedSize, TEXT("Compressed size mismatch: read %lld, but %lld in header"), TotalCompressedSize, Header.CompressedSize))
|
||
|
|
{
|
||
|
|
UncompressedData.Empty();
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
if (!ensureMsgf(TotalUncompressedSize == Header.UncompressedSize, TEXT("Uncompressed size mismatch: read %lld, but %lld in header"), TotalUncompressedSize, Header.UncompressedSize))
|
||
|
|
{
|
||
|
|
UncompressedData.Empty();
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Log
|
||
|
|
|
||
|
|
const double TotalEndTime = FPlatformTime::Seconds();
|
||
|
|
|
||
|
|
const double UncompressedSizeMB = double(TotalUncompressedSize) / double(1 << 20);
|
||
|
|
const double CompressedSizeMB = double(TotalCompressedSize) / double(1 << 20);
|
||
|
|
|
||
|
|
const double TotalTime = TotalEndTime - TotalStartTime;
|
||
|
|
|
||
|
|
LOG_VOXEL(Log, TEXT("Decompressed %f MB in %fs (%f MB/s). Compressed Size: %f MB (%f%%). Decompression: %fs (%f%%). Num Chunks: %d."),
|
||
|
|
UncompressedSizeMB,
|
||
|
|
TotalTime,
|
||
|
|
UncompressedSizeMB / TotalTime,
|
||
|
|
CompressedSizeMB,
|
||
|
|
100 * CompressedSizeMB / UncompressedSizeMB,
|
||
|
|
DecompressionTime,
|
||
|
|
100 * DecompressionTime / TotalTime,
|
||
|
|
Header.NumChunks);
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
const ECompressionFlags CompressionFlags = ECompressionFlags(CompressedData.Last());
|
||
|
|
|
||
|
|
int32 UncompressedSize;
|
||
|
|
FMemory::Memcpy(&UncompressedSize, CompressedData.GetData(), sizeof(UncompressedSize));
|
||
|
|
UncompressedData.SetNum(UncompressedSize);
|
||
|
|
const uint8* CompressionStart = CompressedData.GetData() + sizeof(UncompressedSize);
|
||
|
|
const int32 CompressionSize = CompressedData.Num() - 1 - sizeof(UncompressedSize);
|
||
|
|
|
||
|
|
bool bSuccess = false;
|
||
|
|
ECompressionFlags NewCompressionFlags = (ECompressionFlags)(CompressionFlags & COMPRESS_OptionsFlagsMask);
|
||
|
|
switch (CompressionFlags & COMPRESS_DeprecatedFormatFlagsMask)
|
||
|
|
{
|
||
|
|
case COMPRESS_ZLIB:
|
||
|
|
bSuccess = FCompression::UncompressMemory(NAME_Zlib, UncompressedData.GetData(), UncompressedSize, CompressionStart, CompressionSize, NewCompressionFlags);
|
||
|
|
break;
|
||
|
|
case COMPRESS_GZIP:
|
||
|
|
bSuccess = FCompression::UncompressMemory(NAME_Gzip, UncompressedData.GetData(), UncompressedSize, CompressionStart, CompressionSize, NewCompressionFlags);
|
||
|
|
break;
|
||
|
|
case COMPRESS_Custom:
|
||
|
|
bSuccess = FCompression::UncompressMemory(TEXT("Oodle"), UncompressedData.GetData(), UncompressedSize, CompressionStart, CompressionSize, NewCompressionFlags);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
ensure(false);
|
||
|
|
}
|
||
|
|
|
||
|
|
return bSuccess;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void FVoxelSerializationUtilities::TestCompression(int64 Size, EVoxelCompressionLevel::Type CompressionLevel)
|
||
|
|
{
|
||
|
|
LOG_VOXEL(Log, TEXT("Testing compression on %fMB"), double(Size) / double(1 << 20));
|
||
|
|
|
||
|
|
TArray64<uint8> Data;
|
||
|
|
Data.SetNumUninitialized(Size);
|
||
|
|
|
||
|
|
const FRandomStream Random(0);
|
||
|
|
for (int64 Index = 0; Index < Data.Num(); Index++)
|
||
|
|
{
|
||
|
|
Data[Index] = Random.GetUnsignedInt();
|
||
|
|
}
|
||
|
|
|
||
|
|
TArray<uint8> CompressedData;
|
||
|
|
CompressData(Data.GetData(), Data.Num(), CompressedData, CompressionLevel);
|
||
|
|
|
||
|
|
TArray64<uint8> UncompressedData;
|
||
|
|
DecompressData(CompressedData, UncompressedData);
|
||
|
|
|
||
|
|
check(Data.Num() == UncompressedData.Num());
|
||
|
|
|
||
|
|
for (int64 Index = 0; Index < Data.Num(); Index++)
|
||
|
|
{
|
||
|
|
check(Data[Index] == UncompressedData[Index]);
|
||
|
|
}
|
||
|
|
}
|