diff options
Diffstat (limited to 'src/zencore')
| -rw-r--r-- | src/zencore/basicfile.cpp | 29 | ||||
| -rw-r--r-- | src/zencore/include/zencore/basicfile.h | 8 |
2 files changed, 34 insertions, 3 deletions
diff --git a/src/zencore/basicfile.cpp b/src/zencore/basicfile.cpp index ea526399c..12ee26155 100644 --- a/src/zencore/basicfile.cpp +++ b/src/zencore/basicfile.cpp @@ -792,6 +792,35 @@ BasicFileWriter::~BasicFileWriter() } void +BasicFileWriter::AddPadding(uint64_t Padding) +{ + while (Padding) + { + const uint64_t BufferOffset = m_BufferEnd - m_BufferStart; + const uint64_t RemainingBufferCapacity = m_BufferSize - BufferOffset; + const uint64_t BlockPadBytes = Min(RemainingBufferCapacity, Padding); + + memset(m_Buffer + BufferOffset, 0, BlockPadBytes); + m_BufferEnd += BlockPadBytes; + Padding -= BlockPadBytes; + + if ((BufferOffset + BlockPadBytes) == m_BufferSize) + { + Flush(); + } + } +} + +uint64_t +BasicFileWriter::AlignTo(uint64_t Alignment) +{ + uint64_t AlignedPos = RoundUp(m_BufferEnd, Alignment); + uint64_t Padding = AlignedPos - m_BufferEnd; + AddPadding(Padding); + return AlignedPos; +} + +void BasicFileWriter::Write(const void* Data, uint64_t Size, uint64_t FileOffset) { if (m_Buffer == nullptr || (Size >= m_BufferSize)) diff --git a/src/zencore/include/zencore/basicfile.h b/src/zencore/include/zencore/basicfile.h index 57798b6f4..465499d2b 100644 --- a/src/zencore/include/zencore/basicfile.h +++ b/src/zencore/include/zencore/basicfile.h @@ -174,9 +174,11 @@ public: BasicFileWriter(BasicFile& Base, uint64_t BufferSize); ~BasicFileWriter(); - void Write(const void* Data, uint64_t Size, uint64_t FileOffset); - void Write(const CompositeBuffer& Data, uint64_t FileOffset); - void Flush(); + void Write(const void* Data, uint64_t Size, uint64_t FileOffset); + void Write(const CompositeBuffer& Data, uint64_t FileOffset); + void AddPadding(uint64_t Padding); + uint64_t AlignTo(uint64_t Alignment); + void Flush(); private: BasicFile& m_Base; |