isle-portable/LEGO1/mxdsfile.cpp
MS 1ae3b07dc2
Checkorder tool to keep functions in original binary order (#228)
* First commit of order tool

* More flexible match on module name. Bugfix on blank_or_comment

* Report inexact offset comments in verbose mode. Bugfix for exact regex

* Refactor checkorder into reusable isledecomp module

* Find bad comments in one pass, add awareness of TEMPLATE

* Refactor of state machine to prepare for reccmp integration

* Use isledecomp lib in reccmp

* Build isledecomp in GH actions, fix mypy complaint

* Ensure unit test cpp files will be ignored by reccmp

* Allow multiple offset markers, pep8 cleanup

* Remove unused variable

* Code style, remove unneeded module and TODO

* Final renaming and type hints

* Fix checkorder issues, add GH action and enforce (#2)

* Fix checkorder issues

* Add GH action

* Test error case

* Works

* Fixes

---------

Co-authored-by: Christian Semmler <mail@csemmler.com>
2023-11-21 09:44:45 +01:00

124 lines
2.5 KiB
C++

#include "mxdsfile.h"
#include <stdio.h>
#define SI_MAJOR_VERSION 2
#define SI_MINOR_VERSION 2
// OFFSET: LEGO1 0x100bfed0
MxDSFile::~MxDSFile()
{
Close();
}
// OFFSET: LEGO1 0x100cc4b0
MxDSFile::MxDSFile(const char* filename, MxULong skipReadingChunks)
{
m_filename = filename;
m_skipReadingChunks = skipReadingChunks;
}
// OFFSET: LEGO1 0x100cc590
MxLong MxDSFile::Open(MxULong uStyle)
{
MXIOINFO& io = m_io;
MxLong longResult = 1;
memset(&io, 0, sizeof(MXIOINFO));
if (io.Open(m_filename.GetData(), uStyle) != 0) {
return -1;
}
io.SetBuffer(NULL, 0, 0);
m_position = 0;
if (m_skipReadingChunks == 0) {
longResult = ReadChunks();
}
if (longResult != 0) {
Close(); // vtable + 0x18
}
else {
Seek(0, 0); // vtable + 0x24
}
return longResult;
}
// OFFSET: LEGO1 0x100cc620
MxLong MxDSFile::ReadChunks()
{
_MMCKINFO topChunk;
_MMCKINFO childChunk;
char tempBuffer[80];
topChunk.fccType = FOURCC('O', 'M', 'N', 'I');
if (m_io.Descend(&topChunk, NULL, MMIO_FINDRIFF) != 0) {
return -1;
}
childChunk.ckid = FOURCC('M', 'x', 'H', 'd');
if (m_io.Descend(&childChunk, &topChunk, 0) != 0) {
return -1;
}
m_io.Read(&m_header, 0xc);
if ((m_header.majorVersion == SI_MAJOR_VERSION) && (m_header.minorVersion == SI_MINOR_VERSION)) {
childChunk.ckid = FOURCC('M', 'x', 'O', 'f');
if (m_io.Descend(&childChunk, &topChunk, 0) != 0) {
return -1;
}
MxULong* pLengthInDWords = &m_lengthInDWords;
m_io.Read(pLengthInDWords, 4);
m_pBuffer = new MxU32[*pLengthInDWords];
m_io.Read(m_pBuffer, *pLengthInDWords * 4);
return 0;
}
else {
sprintf(tempBuffer, "Wrong SI file version. %d.%d expected.", SI_MAJOR_VERSION, SI_MINOR_VERSION);
MessageBoxA(NULL, tempBuffer, NULL, MB_ICONERROR);
return -1;
}
}
// OFFSET: LEGO1 0x100cc740
MxLong MxDSFile::Close()
{
m_io.Close(0);
m_position = -1;
memset(&m_header, 0, sizeof(m_header));
if (m_lengthInDWords != 0) {
m_lengthInDWords = 0;
delete[] m_pBuffer;
m_pBuffer = NULL;
}
return 0;
}
// OFFSET: LEGO1 0x100cc780
MxResult MxDSFile::Read(unsigned char* p_buf, MxULong p_nbytes)
{
if (m_io.Read(p_buf, p_nbytes) != p_nbytes)
return FAILURE;
m_position += p_nbytes;
return SUCCESS;
}
// OFFSET: LEGO1 0x100cc7b0
MxLong MxDSFile::Seek(MxLong lOffset, int iOrigin)
{
return (m_position = m_io.Seek(lOffset, iOrigin)) == -1 ? -1 : 0;
}
// OFFSET: LEGO1 0x100cc7e0
MxULong MxDSFile::GetBufferSize()
{
return m_header.bufferSize;
}
// OFFSET: LEGO1 0x100cc7f0
MxULong MxDSFile::GetStreamBuffersNum()
{
return m_header.streamBuffersNum;
}