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Match MxBitmap::vtable+40 (CopyColorData)

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It's basically a call to StretchDIBits, which copies color data for a rectangle
This commit is contained in:
Joshua Peisach 2023-07-12 21:07:54 -04:00
parent f707af34db
commit eae19c8475
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2 changed files with 10 additions and 4 deletions
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12
LEGO1/mxbitmap.cpp
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@ -122,8 +122,14 @@ int MxBitmap::vtable3c(MxBool)
return 0;
}
// OFFSET: LEGO1 0x100bd3e0 STUB
int MxBitmap::vtable40(HDC p_hdc, int p_xSrc, int p_ySrc, int p_xDest, int p_yDest, int p_destWidth, int p_destHeight)
// OFFSET: LEGO1 0x100bd3e0
MxResult MxBitmap::CopyColorData(HDC p_hdc, int p_xSrc, int p_ySrc, int p_xDest, int p_yDest, int p_destWidth, int p_destHeight)
{
return 0;
// Compression fix?
if ((this->m_bmiHeader->biCompression != 16) && (0 < this->m_bmiHeader->biHeight)) {
p_ySrc = (this->m_bmiHeader->biHeight - p_destHeight) - p_ySrc;
}
// TODO: 0xcc0020 is probably a common raster code variable
// see https://learn.microsoft.com/en-us/windows/win32/api/wingdi/nf-wingdi-bitblt#parameters
return StretchDIBits(p_hdc, p_xDest, p_yDest, p_destWidth, p_destHeight, p_xSrc, p_ySrc, p_destWidth, p_destHeight, this->m_data, this->m_info, this->m_unk18, 0xcc0020);
}

2
LEGO1/mxbitmap.h
View File

@ -24,7 +24,7 @@ class MxBitmap : public MxCore
__declspec(dllexport) virtual MxPalette *CreatePalette(); // vtable+34
virtual void vtable38(void*);
virtual int vtable3c(MxBool);
virtual int vtable40(HDC p_hdc, int p_xSrc, int p_ySrc, int p_xDest, int p_yDest, int p_destWidth, int p_destHeight);
virtual MxResult MxBitmap::CopyColorData(HDC p_hdc, int p_xSrc, int p_ySrc, int p_xDest, int p_yDest, int p_destWidth, int p_destHeight); // vtable+40
private:
BITMAPINFO *m_info;