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Add progress on MxBitmap::LoadFile, add the global bitmap signature, add Clone call in CreatePalette

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This commit is contained in:
Joshua Peisach 2023-07-28 21:30:17 -04:00
parent 8adc8324d3
commit 0c27252c87
No known key found for this signature in database
GPG Key ID: 41C3D4189AFEDB5A
1 changed files with 51 additions and 4 deletions
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55
LEGO1/mxbitmap.cpp
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@ -1,5 +1,10 @@
#include "mxbitmap.h"
// The way that the BITMAPFILEHEADER structure ensures the file type is by ensuring it is "BM", which is literally just 0x424d.
// Sources: https://learn.microsoft.com/en-us/windows/win32/api/wingdi/ns-wingdi-bitmapfileheader, DirectX Complete (1998)
// GLOBAL: LEGO1 0x10102184
WORD g_bitmapSignature = 0x424d;
// OFFSET: LEGO1 0x100bc980
MxBitmap::MxBitmap()
{
@ -40,10 +45,52 @@ int MxBitmap::vtable1c(int p_width, int p_height, MxPalette *p_palette, int)
return 0;
}
// OFFSET: LEGO1 0x100bcd60 STUB
// OFFSET: LEGO1 0x100bcd60
MxResult MxBitmap::LoadFile(HANDLE p_handle)
{
return SUCCESS;
void* lpBuffer;
MxS32 height;
MxBool operation_ret;
MxResult result = FAILURE;
DWORD bytesRead;
BITMAPFILEHEADER hdr;
operation_ret = ReadFile(p_handle, &hdr, 14, &bytesRead, NULL);
if ((operation_ret != 0) && (hdr.bfType == g_bitmapSignature)) {
this->m_info = new BITMAPINFO;
if(this->m_info != NULL) {
operation_ret = ReadFile(p_handle, this->m_info, 1064, &bytesRead, NULL);
if ((operation_ret != 0) && ((this->m_info->bmiHeader).biBitCount == 8)) {
lpBuffer = (void*) malloc(hdr.bfSize - 1078);
this->m_data = (LPVOID*) lpBuffer;
if (this->m_data != NULL) {
operation_ret = ReadFile(p_handle, lpBuffer, hdr.bfSize - 1078, &bytesRead, NULL);
if(operation_ret != 0) {
this->m_bmiHeader = &this->m_info->bmiHeader;
this->m_paletteData = this->m_info->bmiColors;
if((this->m_info->bmiHeader).biSizeImage == 0) {
if ((this->m_info->bmiHeader).biHeight < 1) {
this->m_info->bmiHeader.biHeight *= -1;
}
(this->m_info->bmiHeader).biSizeImage = ((this->m_info->bmiHeader).biWidth + 3U & 0xfffffffc) * this->m_info->bmiHeader.biHeight;
}
result = SUCCESS;
}
}
}
}
} // TODO: g_bitmapSignature
if (result != SUCCESS) {
if (this->m_info != NULL) {
delete this->m_info;
this->m_info = NULL;
}
if (this->m_data != NULL) {
delete this->m_data;
this->m_data = NULL;
}
}
return result;
}
// OFFSET: LEGO1 0x100bcd10
@ -80,7 +127,7 @@ void MxBitmap::vtable2c(int, int, int, int, int, int, int)
{
}
// OFFSET: LEGO1 0x100d020 STUB
// OFFSET: LEGO1 0x100bd020 STUB
void MxBitmap::vtable30(int, int, int, int, int, int, int)
{
}
@ -107,7 +154,7 @@ MxPalette *MxBitmap::CreatePalette()
pal = NULL;
}
}
pal = this->m_palette->Clone();
pal = this->m_palette->Clone();
}
if(pal != NULL) {
success = TRUE;