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Cleanup MxBitmap::LoadFile

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This commit is contained in:
Joshua Peisach 2023-07-29 16:52:54 -04:00
parent c5f7a4df28
commit 0223d8fb50
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GPG Key ID: 41C3D4189AFEDB5A
1 changed files with 13 additions and 15 deletions
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28
LEGO1/mxbitmap.cpp
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@ -3,7 +3,7 @@
// 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;
DWORD g_bitmapSignature = 0x424d;
// OFFSET: LEGO1 0x100bc980
MxBitmap::MxBitmap()
@ -72,26 +72,24 @@ int MxBitmap::vtable1c(int p_width, int p_height, MxPalette *p_palette, int)
// OFFSET: LEGO1 0x100bcd60
MxResult MxBitmap::LoadFile(HANDLE p_handle)
{
void* lpBuffer;
BITMAPINFO *infoHdr;
LPVOID* lpBuffer;
MxS32 height;
MxBool operation_ret;
MxBool 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)) {
infoHdr = (BITMAPINFO*) malloc(1064);
this->m_info = infoHdr;
if(infoHdr != NULL) {
operation_ret = ReadFile(p_handle, infoHdr, 1064, &bytesRead, NULL);
if ((operation_ret != 0) && ((this->m_info->bmiHeader).biBitCount == 8)) {
lpBuffer = (void*) malloc(hdr.bfSize - 1078);
this->m_data = (LPVOID*) lpBuffer;
ret = ReadFile(p_handle, &hdr, 14, &bytesRead, NULL);
if (ret && (hdr.bfType == g_bitmapSignature)) {
this->m_info = (BITMAPINFO*) malloc(1064);
if(this->m_info != NULL) {
ret = ReadFile(p_handle, this->m_info, 1064, &bytesRead, NULL);
if (ret && ((this->m_info->bmiHeader).biBitCount == 8)) {
lpBuffer = (LPVOID*) malloc(hdr.bfSize - 1078);
this->m_data = lpBuffer;
if (this->m_data != NULL) {
operation_ret = ReadFile(p_handle, lpBuffer, hdr.bfSize - 1078, &bytesRead, NULL);
if(operation_ret != 0) {
ret = ReadFile(p_handle, lpBuffer, hdr.bfSize - 1078, &bytesRead, NULL);
if(ret != 0) {
this->m_bmiHeader = &this->m_info->bmiHeader;
this->m_paletteData = this->m_info->bmiColors;
if((this->m_info->bmiHeader).biSizeImage == 0) {