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Match MxDSBuffer::FUN_100c6fa0 (#1699)

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Christian Semmler 2025-12-29 20:16:57 -07:00 committed by GitHub
parent dfffb873ed
commit ae9d1cbb2b
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1 changed files with 19 additions and 16 deletions
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35
LEGO1/omni/src/stream/mxdsbuffer.cpp
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@ -456,31 +456,34 @@ void MxDSBuffer::FUN_100c6f80(MxU32 p_writeOffset)
} }
// FUNCTION: LEGO1 0x100c6fa0 // FUNCTION: LEGO1 0x100c6fa0
// FUNCTION: BETA10 0x101582f2
MxU8* MxDSBuffer::FUN_100c6fa0(MxU8* p_data) MxU8* MxDSBuffer::FUN_100c6fa0(MxU8* p_data)
{ {
MxU8* current = p_data ? p_data : m_pBuffer; MxU8* volatile current = p_data ? p_data : m_pBuffer;
MxU8* end = m_writeOffset + m_pBuffer - 8;
while (current <= end) { while (current <= m_writeOffset + m_pBuffer - 8) {
switch (*((MxU32*) current)) { switch (*(MxU32*) current) {
case FOURCC('L', 'I', 'S', 'T'): case FOURCC('M', 'x', 'O', 'b'):
case FOURCC('R', 'I', 'F', 'F'): case FOURCC('M', 'x', 'C', 'h'):
current += 12; if (current == p_data) {
MxU32 size = *(MxU32*) (current + 4);
current += (size & 1) + size;
current += 8;
}
else {
return current;
}
break; break;
case FOURCC('M', 'x', 'D', 'a'): case FOURCC('M', 'x', 'D', 'a'):
case FOURCC('M', 'x', 'S', 't'): case FOURCC('M', 'x', 'S', 't'):
current += 8; current += 8;
break; break;
case FOURCC('M', 'x', 'O', 'b'):
case FOURCC('M', 'x', 'C', 'h'):
if (current != p_data) {
return current;
}
current = ((MxU32) current & 1) + current;
current += 8;
break;
case FOURCC('M', 'x', 'H', 'd'): case FOURCC('M', 'x', 'H', 'd'):
current += (((MxU32*) current)[1] + 8); current += *(MxU32*) (current + 4) + 8;
break;
case FOURCC('L', 'I', 'S', 'T'):
case FOURCC('R', 'I', 'F', 'F'):
current += 12;
break; break;
default: default:
return NULL; return NULL;