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c7458211f3
* Match MxBitmap::vtable+40 (CopyColorData) It's basically a call to StretchDIBits, which copies color data for a rectangle * Name a ternary raster op * Name variable m_unk18 (m_bmiColorsProvided) Since this variable is passed to StretchDIBits, we can see what its supposed to mean. We dont have DX5 docs, but we have docs of the current day, and this as its 'iUsage': "Specifies whether the bmiColors member of the BITMAPINFO structure was provided and, if so, whether bmiColors contains explicit red, green, blue (RGB) values or indexes." The second part (about what the bmiColors contains) seems redundant, since we know this is a boolean. Source: https://learn.microsoft.com/en-us/windows/win32/api/wingdi/nf-wingdi-stretchdibits * MxBitmap::CreatePalette is now up to 60% * Add progress on MxBitmap::LoadFile, add the global bitmap signature, add Clone call in CreatePalette * getting closer * Implement MxBitmap::vtable18 * Got vtable18 into a better state It's progress doesn't affect the status of CopyColorData, which is back at 100%, as it makes sense the loop is a memcpy * if you want to do more of vtable18 have fun * Cleanup MxBitmap::LoadFile * Begin work on FUN_100bd450 (ImportColorsToPalette) This took a lot of time, finally I got a good understanding of it. Primarily what's left now is the loop https://hackmd.io/@KsNMFSBHTO2gxDyRIPRQ1g/H1LCVQXon * Don’t include class name in method declaration * yolo vtable38 (I can't test the build atm) I moved up ImportColorsToPalette so other functions, including this one can use it * Cleanup while i keep getting bored of matching these functions that wont match * likely malloc is an operator new * A few things for MxBitmap * new struct MxBITMAPINFO * vtable18 and ImportPalette 100% * ImportColorsToPalette improvement * Match vtable1c and vtable3c * use MxResult return types * CreatePalette - Use MxResult to track success * Define types for the bit depth That boolean is not really a boolean, its just a variable to store the bit depth as some DWORD. 0 = 256 color, 1 = High Color (16-bit). * Match MxBitmap::CreatePalette * Match LoadFile YEGYEEHEEHEHEHEHEHE3 YES THIS IS FINALLY DONE OMFG * Reorder variable placement in CreatePalette * Start vtable14 * Match MxBitmap vtable14, down to reg swap. Maybe some import function? * Name MxBitmap vtable functions --------- Co-authored-by: disinvite <disinvite@users.noreply.github.com> Co-authored-by: Christian Semmler <mail@csemmler.com>
58 lines
2.1 KiB
C++
58 lines
2.1 KiB
C++
#ifndef MXBITMAP_H
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#define MXBITMAP_H
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#include <stdlib.h>
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#include "mxcore.h"
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#include "mxpalette.h"
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#include "mxtypes.h"
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// The stock BITMAPINFO struct from wingdi.h only makes room for one color
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// in the palette. It seems like the expectation (if you use the struct)
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// is to malloc as much as you actually need, and then index into the array
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// anyway even though its stated size is [1].
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// https://learn.microsoft.com/en-us/windows/win32/api/wingdi/ns-wingdi-bitmapinfo
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// In our case, the size 0x428 is used frequently, which matches
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// a 40-byte header plus 256 colors, so just use that as our template.
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// SIZE 0x428
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struct MxBITMAPINFO {
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BITMAPINFOHEADER bmiHeader;
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RGBQUAD bmiColors[256];
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};
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// These values are the bit depth, set in the registry
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#define LOWCOLOR 0 // 256 color
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#define HIGHCOLOR 1 // High Color (16-bit)
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class MxBitmap : public MxCore
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{
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public:
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__declspec(dllexport) MxBitmap();
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__declspec(dllexport) virtual ~MxBitmap(); // vtable+00
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virtual MxResult ImportBitmap(MxBitmap *p_bitmap); // vtable+14
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virtual MxResult ImportBitmapInfo(MxBITMAPINFO *p_info); // vtable+18
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virtual MxResult SetSize(int p_width, int p_height, MxPalette *p_palette, int); // vtable+1c
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virtual MxResult LoadFile(HANDLE p_handle); // vtable+20
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__declspec(dllexport) virtual MxLong Read(const char *p_filename); // vtable+24
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virtual int vtable28(int);
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virtual void vtable2c(int, int, int, int, int, int, int);
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virtual void vtable30(int, int, int, int, int, int, int);
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__declspec(dllexport) virtual MxPalette *CreatePalette(); // vtable+34
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virtual void ImportPalette(MxPalette* p_palette); // vtable+38
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virtual MxResult SetBitDepth(MxBool); // vtable+3c
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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
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private:
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MxResult ImportColorsToPalette(RGBQUAD*, MxPalette*);
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MxBITMAPINFO *m_info; // 0x8
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BITMAPINFOHEADER *m_bmiHeader; // 0xc
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RGBQUAD *m_paletteData; // 0x10
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LPVOID *m_data; // 0x14
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MxBool m_bitDepth; // 0x18
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MxPalette *m_palette; // 0x1c
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};
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#endif // MXBITMAP_H
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