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-rw-r--r--src/zencore/basicfile.cpp29
-rw-r--r--src/zencore/include/zencore/basicfile.h8
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;