diff options
Diffstat (limited to 'src/BlockArea.cpp')
| -rw-r--r-- | src/BlockArea.cpp | 393 |
1 files changed, 226 insertions, 167 deletions
diff --git a/src/BlockArea.cpp b/src/BlockArea.cpp index 40cca8882..e0ae2c5b6 100644 --- a/src/BlockArea.cpp +++ b/src/BlockArea.cpp @@ -14,17 +14,29 @@ +// Disable MSVC warnings: "conditional expression is constant" +#ifdef _MSC_VER + #pragma warning(push) + #pragma warning(disable:4127) +#endif + + + + + +typedef void (CombinatorFunc)(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta); + // This wild construct allows us to pass a function argument and still have it inlined by the compiler :) /// Merges two blocktypes and blockmetas of the specified sizes and offsets using the specified combinator function -template<typename Combinator> void InternalMergeBlocks( +template<bool MetasValid, CombinatorFunc Combinator> +void InternalMergeBlocks( BLOCKTYPE * a_DstTypes, const BLOCKTYPE * a_SrcTypes, NIBBLETYPE * a_DstMetas, const NIBBLETYPE * a_SrcMetas, int a_SizeX, int a_SizeY, int a_SizeZ, int a_SrcOffX, int a_SrcOffY, int a_SrcOffZ, int a_DstOffX, int a_DstOffY, int a_DstOffZ, int a_SrcSizeX, int a_SrcSizeY, int a_SrcSizeZ, - int a_DstSizeX, int a_DstSizeY, int a_DstSizeZ, - Combinator a_Combinator + int a_DstSizeX, int a_DstSizeY, int a_DstSizeZ ) { UNUSED(a_SrcSizeY); @@ -41,7 +53,15 @@ template<typename Combinator> void InternalMergeBlocks( int DstIdx = DstBaseZ + a_DstOffX; for (int x = 0; x < a_SizeX; x++) { - a_Combinator(a_DstTypes[DstIdx], a_SrcTypes[SrcIdx], a_DstMetas[DstIdx], a_SrcMetas[SrcIdx]); + if (MetasValid) + { + Combinator(a_DstTypes[DstIdx], a_SrcTypes[SrcIdx], a_DstMetas[DstIdx], a_SrcMetas[SrcIdx]); + } + else + { + BLOCKTYPE FakeDestMeta = 0; + Combinator(a_DstTypes[DstIdx], a_SrcTypes[SrcIdx], FakeDestMeta, (NIBBLETYPE)0); + } ++DstIdx; ++SrcIdx; } // for x @@ -54,10 +74,14 @@ template<typename Combinator> void InternalMergeBlocks( /// Combinator used for cBlockArea::msOverwrite merging -static inline void MergeCombinatorOverwrite(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta) +template<bool MetaValid> +void MergeCombinatorOverwrite(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta) { a_DstType = a_SrcType; - a_DstMeta = a_SrcMeta; + if (MetaValid) + { + a_DstMeta = a_SrcMeta; + } } @@ -65,12 +89,16 @@ static inline void MergeCombinatorOverwrite(BLOCKTYPE & a_DstType, BLOCKTYPE a_S /// Combinator used for cBlockArea::msFillAir merging -static inline void MergeCombinatorFillAir(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta) +template<bool MetaValid> +void MergeCombinatorFillAir(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta) { if (a_DstType == E_BLOCK_AIR) { a_DstType = a_SrcType; - a_DstMeta = a_SrcMeta; + if (MetaValid) + { + a_DstMeta = a_SrcMeta; + } } // "else" is the default, already in place } @@ -80,12 +108,16 @@ static inline void MergeCombinatorFillAir(BLOCKTYPE & a_DstType, BLOCKTYPE a_Src /// Combinator used for cBlockArea::msImprint merging -static inline void MergeCombinatorImprint(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta) +template<bool MetaValid> +void MergeCombinatorImprint(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta) { if (a_SrcType != E_BLOCK_AIR) { a_DstType = a_SrcType; - a_DstMeta = a_SrcMeta; + if (MetaValid) + { + a_DstMeta = a_SrcMeta; + } } // "else" is the default, already in place } @@ -95,7 +127,8 @@ static inline void MergeCombinatorImprint(BLOCKTYPE & a_DstType, BLOCKTYPE a_Src /// Combinator used for cBlockArea::msLake merging -static inline void MergeCombinatorLake(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta) +template<bool MetaValid> +void MergeCombinatorLake(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta) { // Sponge is the NOP block if (a_SrcType == E_BLOCK_SPONGE) @@ -107,7 +140,10 @@ static inline void MergeCombinatorLake(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcTyp if (a_SrcType == E_BLOCK_AIR) { a_DstType = E_BLOCK_AIR; - a_DstMeta = 0; + if (MetaValid) + { + a_DstMeta = 0; + } return; } @@ -132,7 +168,10 @@ static inline void MergeCombinatorLake(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcTyp case E_BLOCK_STATIONARY_LAVA: { a_DstType = a_SrcType; - a_DstMeta = a_SrcMeta; + if (MetaValid) + { + a_DstMeta = a_SrcMeta; + } return; } } @@ -146,7 +185,10 @@ static inline void MergeCombinatorLake(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcTyp case E_BLOCK_MYCELIUM: { a_DstType = E_BLOCK_STONE; - a_DstMeta = 0; + if (MetaValid) + { + a_DstMeta = 0; + } return; } } @@ -159,13 +201,17 @@ static inline void MergeCombinatorLake(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcTyp /** Combinator used for cBlockArea::msSpongePrint merging */ -static inline void MergeCombinatorSpongePrint(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta) +template<bool MetaValid> +void MergeCombinatorSpongePrint(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta) { // Sponge overwrites nothing, everything else overwrites anything if (a_SrcType != E_BLOCK_SPONGE) { a_DstType = a_SrcType; - a_DstMeta = a_SrcMeta; + if (MetaValid) + { + a_DstMeta = a_SrcMeta; + } } } @@ -174,17 +220,24 @@ static inline void MergeCombinatorSpongePrint(BLOCKTYPE & a_DstType, BLOCKTYPE a /** Combinator used for cBlockArea::msDifference merging */ -static inline void MergeCombinatorDifference(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta) +template<bool MetaValid> +void MergeCombinatorDifference(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta) { - if ((a_DstType == a_SrcType) && (a_DstMeta == a_SrcMeta)) + if ((a_DstType == a_SrcType) && (!MetaValid || (a_DstMeta == a_SrcMeta))) { a_DstType = E_BLOCK_AIR; - a_DstMeta = 0; + if (MetaValid) + { + a_DstMeta = 0; + } } else { a_DstType = a_SrcType; - a_DstMeta = a_SrcMeta; + if (MetaValid) + { + a_DstMeta = a_SrcMeta; + } } } @@ -193,16 +246,25 @@ static inline void MergeCombinatorDifference(BLOCKTYPE & a_DstType, BLOCKTYPE a_ /** Combinator used for cBlockArea::msMask merging */ -static inline void MergeCombinatorMask(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta) +template<bool MetaValid> +void MergeCombinatorMask(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta) { // If the blocks are the same, keep the dest; otherwise replace with air - if ((a_SrcType != a_DstType) || (a_SrcMeta != a_DstMeta)) + if ((a_SrcType != a_DstType) || !MetaValid || (a_SrcMeta != a_DstMeta)) { a_DstType = E_BLOCK_AIR; - a_DstMeta = 0; + if (MetaValid) + { + a_DstMeta = 0; + } } } +// Re-enable previously disabled MSVC warnings +#ifdef _MSC_VER + #pragma warning(pop) +#endif + @@ -484,7 +546,7 @@ void cBlockArea::CopyTo(cBlockArea & a_Into) const a_Into.Clear(); a_Into.SetSize(m_Size.x, m_Size.y, m_Size.z, GetDataTypes()); a_Into.m_Origin = m_Origin; - int BlockCount = GetBlockCount(); + size_t BlockCount = GetBlockCount(); if (HasBlockTypes()) { memcpy(a_Into.m_BlockTypes, m_BlockTypes, BlockCount * sizeof(BLOCKTYPE)); @@ -532,7 +594,7 @@ void cBlockArea::DumpToRawFile(const AString & a_FileName) f.Write(&SizeZ, 4); unsigned char DataTypes = (unsigned char)GetDataTypes(); f.Write(&DataTypes, 1); - int NumBlocks = GetBlockCount(); + size_t NumBlocks = GetBlockCount(); if (HasBlockTypes()) { f.Write(m_BlockTypes, NumBlocks * sizeof(BLOCKTYPE)); @@ -637,155 +699,19 @@ void cBlockArea::Expand(int a_SubMinX, int a_AddMaxX, int a_SubMinY, int a_AddMa void cBlockArea::Merge(const cBlockArea & a_Src, int a_RelX, int a_RelY, int a_RelZ, eMergeStrategy a_Strategy) { - // Block types are compulsory, block metas are voluntary - if (!HasBlockTypes() || !a_Src.HasBlockTypes()) - { - LOGWARNING("%s: cannot merge because one of the areas doesn't have blocktypes.", __FUNCTION__); - return; - } - - // Dst is *this, Src is a_Src - int SrcOffX = std::max(0, -a_RelX); // Offset in Src where to start reading - int DstOffX = std::max(0, a_RelX); // Offset in Dst where to start writing - int SizeX = std::min(a_Src.GetSizeX() - SrcOffX, GetSizeX() - DstOffX); // How many blocks to copy - - int SrcOffY = std::max(0, -a_RelY); // Offset in Src where to start reading - int DstOffY = std::max(0, a_RelY); // Offset in Dst where to start writing - int SizeY = std::min(a_Src.GetSizeY() - SrcOffY, GetSizeY() - DstOffY); // How many blocks to copy - - int SrcOffZ = std::max(0, -a_RelZ); // Offset in Src where to start reading - int DstOffZ = std::max(0, a_RelZ); // Offset in Dst where to start writing - int SizeZ = std::min(a_Src.GetSizeZ() - SrcOffZ, GetSizeZ() - DstOffZ); // How many blocks to copy const NIBBLETYPE * SrcMetas = a_Src.GetBlockMetas(); NIBBLETYPE * DstMetas = m_BlockMetas; + bool IsDummyMetas = ((SrcMetas == NULL) || (DstMetas == NULL)); if (IsDummyMetas) { - SrcMetas = new NIBBLETYPE[a_Src.GetBlockCount()]; - DstMetas = new NIBBLETYPE[GetBlockCount()]; + MergeByStrategy<true>(a_Src, a_RelX, a_RelY, a_RelZ, a_Strategy, SrcMetas, DstMetas); } - - switch (a_Strategy) - { - case msOverwrite: - { - InternalMergeBlocks( - m_BlockTypes, a_Src.GetBlockTypes(), - DstMetas, SrcMetas, - SizeX, SizeY, SizeZ, - SrcOffX, SrcOffY, SrcOffZ, - DstOffX, DstOffY, DstOffZ, - a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(), - m_Size.x, m_Size.y, m_Size.z, - MergeCombinatorOverwrite - ); - break; - } // case msOverwrite - - case msFillAir: - { - InternalMergeBlocks( - m_BlockTypes, a_Src.GetBlockTypes(), - DstMetas, SrcMetas, - SizeX, SizeY, SizeZ, - SrcOffX, SrcOffY, SrcOffZ, - DstOffX, DstOffY, DstOffZ, - a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(), - m_Size.x, m_Size.y, m_Size.z, - MergeCombinatorFillAir - ); - break; - } // case msFillAir - - case msImprint: - { - InternalMergeBlocks( - m_BlockTypes, a_Src.GetBlockTypes(), - DstMetas, SrcMetas, - SizeX, SizeY, SizeZ, - SrcOffX, SrcOffY, SrcOffZ, - DstOffX, DstOffY, DstOffZ, - a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(), - m_Size.x, m_Size.y, m_Size.z, - MergeCombinatorImprint - ); - break; - } // case msImprint - - case msLake: - { - InternalMergeBlocks( - m_BlockTypes, a_Src.GetBlockTypes(), - DstMetas, SrcMetas, - SizeX, SizeY, SizeZ, - SrcOffX, SrcOffY, SrcOffZ, - DstOffX, DstOffY, DstOffZ, - a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(), - m_Size.x, m_Size.y, m_Size.z, - MergeCombinatorLake - ); - break; - } // case msLake - - case msSpongePrint: - { - InternalMergeBlocks( - m_BlockTypes, a_Src.GetBlockTypes(), - DstMetas, SrcMetas, - SizeX, SizeY, SizeZ, - SrcOffX, SrcOffY, SrcOffZ, - DstOffX, DstOffY, DstOffZ, - a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(), - m_Size.x, m_Size.y, m_Size.z, - MergeCombinatorSpongePrint - ); - break; - } // case msSpongePrint - - case msDifference: - { - InternalMergeBlocks( - m_BlockTypes, a_Src.GetBlockTypes(), - DstMetas, SrcMetas, - SizeX, SizeY, SizeZ, - SrcOffX, SrcOffY, SrcOffZ, - DstOffX, DstOffY, DstOffZ, - a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(), - m_Size.x, m_Size.y, m_Size.z, - MergeCombinatorDifference - ); - break; - } // case msDifference - - case msMask: - { - InternalMergeBlocks( - m_BlockTypes, a_Src.GetBlockTypes(), - DstMetas, SrcMetas, - SizeX, SizeY, SizeZ, - SrcOffX, SrcOffY, SrcOffZ, - DstOffX, DstOffY, DstOffZ, - a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(), - m_Size.x, m_Size.y, m_Size.z, - MergeCombinatorMask - ); - break; - } // case msMask - - default: - { - LOGWARNING("Unknown block area merge strategy: %d", a_Strategy); - ASSERT(!"Unknown block area merge strategy"); - break; - } - } // switch (a_Strategy) - - if (IsDummyMetas) + else { - delete[] SrcMetas; - delete[] DstMetas; + MergeByStrategy<false>(a_Src, a_RelX, a_RelY, a_RelZ, a_Strategy, SrcMetas, DstMetas); } } @@ -2079,7 +2005,7 @@ void cBlockArea::ExpandBlockTypes(int a_SubMinX, int a_AddMaxX, int a_SubMinY, i int NewSizeX = m_Size.x + a_SubMinX + a_AddMaxX; int NewSizeY = m_Size.y + a_SubMinY + a_AddMaxY; int NewSizeZ = m_Size.z + a_SubMinZ + a_AddMaxZ; - int BlockCount = NewSizeX * NewSizeY * NewSizeZ; + size_t BlockCount = (size_t)(NewSizeX * NewSizeY * NewSizeZ); BLOCKTYPE * NewBlockTypes = new BLOCKTYPE[BlockCount]; memset(NewBlockTypes, 0, BlockCount * sizeof(BLOCKTYPE)); int OldIndex = 0; @@ -2109,7 +2035,7 @@ void cBlockArea::ExpandNibbles(NIBBLEARRAY & a_Array, int a_SubMinX, int a_AddMa int NewSizeX = m_Size.x + a_SubMinX + a_AddMaxX; int NewSizeY = m_Size.y + a_SubMinY + a_AddMaxY; int NewSizeZ = m_Size.z + a_SubMinZ + a_AddMaxZ; - int BlockCount = NewSizeX * NewSizeY * NewSizeZ; + size_t BlockCount = (size_t)(NewSizeX * NewSizeY * NewSizeZ); NIBBLETYPE * NewNibbles = new NIBBLETYPE[BlockCount]; memset(NewNibbles, 0, BlockCount * sizeof(NIBBLETYPE)); int OldIndex = 0; @@ -2161,4 +2087,137 @@ void cBlockArea::RelSetData( +template<bool MetasValid> +void cBlockArea::MergeByStrategy(const cBlockArea & a_Src, int a_RelX, int a_RelY, int a_RelZ, eMergeStrategy a_Strategy, const NIBBLETYPE * SrcMetas, NIBBLETYPE * DstMetas) +{ + // Block types are compulsory, block metas are voluntary + if (!HasBlockTypes() || !a_Src.HasBlockTypes()) + { + LOGWARNING("%s: cannot merge because one of the areas doesn't have blocktypes.", __FUNCTION__); + return; + } + + // Dst is *this, Src is a_Src + int SrcOffX = std::max(0, -a_RelX); // Offset in Src where to start reading + int DstOffX = std::max(0, a_RelX); // Offset in Dst where to start writing + int SizeX = std::min(a_Src.GetSizeX() - SrcOffX, GetSizeX() - DstOffX); // How many blocks to copy + + int SrcOffY = std::max(0, -a_RelY); // Offset in Src where to start reading + int DstOffY = std::max(0, a_RelY); // Offset in Dst where to start writing + int SizeY = std::min(a_Src.GetSizeY() - SrcOffY, GetSizeY() - DstOffY); // How many blocks to copy + + int SrcOffZ = std::max(0, -a_RelZ); // Offset in Src where to start reading + int DstOffZ = std::max(0, a_RelZ); // Offset in Dst where to start writing + int SizeZ = std::min(a_Src.GetSizeZ() - SrcOffZ, GetSizeZ() - DstOffZ); // How many blocks to copy + + switch (a_Strategy) + { + case cBlockArea::msOverwrite: + { + InternalMergeBlocks<MetasValid, MergeCombinatorOverwrite<MetasValid> >( + m_BlockTypes, a_Src.GetBlockTypes(), + DstMetas, SrcMetas, + SizeX, SizeY, SizeZ, + SrcOffX, SrcOffY, SrcOffZ, + DstOffX, DstOffY, DstOffZ, + a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(), + m_Size.x, m_Size.y, m_Size.z + ); + break; + } // case msOverwrite + + case cBlockArea::msFillAir: + { + InternalMergeBlocks<MetasValid, MergeCombinatorFillAir<MetasValid> >( + m_BlockTypes, a_Src.GetBlockTypes(), + DstMetas, SrcMetas, + SizeX, SizeY, SizeZ, + SrcOffX, SrcOffY, SrcOffZ, + DstOffX, DstOffY, DstOffZ, + a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(), + m_Size.x, m_Size.y, m_Size.z + ); + break; + } // case msFillAir + + case cBlockArea::msImprint: + { + InternalMergeBlocks<MetasValid, MergeCombinatorImprint<MetasValid> >( + m_BlockTypes, a_Src.GetBlockTypes(), + DstMetas, SrcMetas, + SizeX, SizeY, SizeZ, + SrcOffX, SrcOffY, SrcOffZ, + DstOffX, DstOffY, DstOffZ, + a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(), + m_Size.x, m_Size.y, m_Size.z + ); + break; + } // case msImprint + + case cBlockArea::msLake: + { + InternalMergeBlocks<MetasValid, MergeCombinatorLake<MetasValid> >( + m_BlockTypes, a_Src.GetBlockTypes(), + DstMetas, SrcMetas, + SizeX, SizeY, SizeZ, + SrcOffX, SrcOffY, SrcOffZ, + DstOffX, DstOffY, DstOffZ, + a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(), + m_Size.x, m_Size.y, m_Size.z + ); + break; + } // case msLake + + case cBlockArea::msSpongePrint: + { + InternalMergeBlocks<MetasValid, MergeCombinatorSpongePrint<MetasValid> >( + m_BlockTypes, a_Src.GetBlockTypes(), + DstMetas, SrcMetas, + SizeX, SizeY, SizeZ, + SrcOffX, SrcOffY, SrcOffZ, + DstOffX, DstOffY, DstOffZ, + a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(), + m_Size.x, m_Size.y, m_Size.z + ); + break; + } // case msSpongePrint + + case cBlockArea::msDifference: + { + InternalMergeBlocks<MetasValid, MergeCombinatorDifference<MetasValid> >( + m_BlockTypes, a_Src.GetBlockTypes(), + DstMetas, SrcMetas, + SizeX, SizeY, SizeZ, + SrcOffX, SrcOffY, SrcOffZ, + DstOffX, DstOffY, DstOffZ, + a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(), + m_Size.x, m_Size.y, m_Size.z + ); + break; + } // case msDifference + + case cBlockArea::msMask: + { + InternalMergeBlocks<MetasValid, MergeCombinatorMask<MetasValid> >( + m_BlockTypes, a_Src.GetBlockTypes(), + DstMetas, SrcMetas, + SizeX, SizeY, SizeZ, + SrcOffX, SrcOffY, SrcOffZ, + DstOffX, DstOffY, DstOffZ, + a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(), + m_Size.x, m_Size.y, m_Size.z + ); + break; + } // case msMask + + default: + { + LOGWARNING("Unknown block area merge strategy: %d", a_Strategy); + ASSERT(!"Unknown block area merge strategy"); + break; + } + } // switch (a_Strategy) +} + + |