isle/LEGO1/mxbitmap.h
MS 907c85616b
Supporting items for SetupCopyRect() (#177)
* Minor improvements all related to SetupCopyRect

* Rename inline getters. malloc/free -> new/delete

* MxTypes in TransitionManager. Remove stub marker (oops)
2023-10-07 18:48:36 +02:00

62 lines
2.2 KiB
C++

#ifndef MXBITMAP_H
#define MXBITMAP_H
#include <stdlib.h>
#include "mxcore.h"
#include "mxpalette.h"
#include "mxtypes.h"
// The stock BITMAPINFO struct from wingdi.h only makes room for one color
// in the palette. It seems like the expectation (if you use the struct)
// is to malloc as much as you actually need, and then index into the array
// anyway even though its stated size is [1].
// https://learn.microsoft.com/en-us/windows/win32/api/wingdi/ns-wingdi-bitmapinfo
// In our case, the size 0x428 is used frequently, which matches
// a 40-byte header plus 256 colors, so just use that as our template.
// SIZE 0x428
struct MxBITMAPINFO {
BITMAPINFOHEADER bmiHeader;
RGBQUAD bmiColors[256];
};
// These values are the bit depth, set in the registry
#define LOWCOLOR 0 // 256 color
#define HIGHCOLOR 1 // High Color (16-bit)
// SIZE 0x20
// VTABLE 0x100dc7b0
class MxBitmap : public MxCore
{
public:
__declspec(dllexport) MxBitmap();
__declspec(dllexport) virtual ~MxBitmap(); // vtable+00
virtual MxResult ImportBitmap(MxBitmap *p_bitmap); // vtable+14
virtual MxResult ImportBitmapInfo(MxBITMAPINFO *p_info); // vtable+18
virtual MxResult SetSize(int p_width, int p_height, MxPalette *p_palette, int); // vtable+1c
virtual MxResult LoadFile(HANDLE p_handle); // vtable+20
__declspec(dllexport) virtual MxLong Read(const char *p_filename); // vtable+24
virtual int vtable28(int);
virtual void vtable2c(int, int, int, int, int, int, int);
virtual void vtable30(int, int, int, int, int, int, int);
__declspec(dllexport) virtual MxPalette *CreatePalette(); // vtable+34
virtual void ImportPalette(MxPalette* p_palette); // vtable+38
virtual MxResult SetBitDepth(MxBool); // vtable+3c
virtual MxResult StretchBits(HDC p_hdc, int p_xSrc, int p_ySrc, int p_xDest, int p_yDest, int p_destWidth, int p_destHeight); // vtable+40
inline BITMAPINFOHEADER *GetBmiHeader() const { return m_bmiHeader; }
private:
MxResult ImportColorsToPalette(RGBQUAD*, MxPalette*);
MxBITMAPINFO *m_info; // 0x8
BITMAPINFOHEADER *m_bmiHeader; // 0xc
RGBQUAD *m_paletteData; // 0x10
LPVOID *m_data; // 0x14
MxBool m_bitDepth; // 0x18
MxPalette *m_palette; // 0x1c
};
#endif // MXBITMAP_H