Hello All,
I have come across a function called MaskBlt which I have tried to implement in the grphics/bitblt.c
The functions works, but still has a few problems and was wondering if someone had any experience with this function so that I can try to see how to fix it.
-------------------------------------------------------------- #define FORE_ROP3(ROP4) (0x00FFFFFF&(ROP4)) //#define BACK_ROP3(ROP4) (ROP3FromIndex(SwapROP3_SrcDst (((ROP4)>>24)))) #define BACK_ROP3(ROP4) (ROP3FromIndex(SwapROP3_SrcDst ((ROP4)>>24)))
// // See the Raster operations in MSDN // DWORD ROP3FromIndex(DWORD dwIndex) { static DWORD ROP3Table[256] = { 0x00000042, 0x00010289, 0x00020C89, 0x000300AA, 0x00040C88, 0x000500A9, 0x00060865, 0x000702C5, 0x00080F08, 0x00090245, 0x000A0329, 0x000B0B2A, 0x000C0324, 0x000D0B25, 0x000E08A5, 0x000F0001, 0x00100C85, 0x001100A6, 0x00120868, 0x001302C8, 0x00140869, 0x001502C9, 0x00165CCA, 0x00171D54, 0x00180D59, 0x00191CC8, 0x001A06C5, 0x001B0768, 0x001C06CA, 0x001D0766, 0x001E01A5, 0x001F0385, 0x00200F09, 0x00210248, 0x00220326, 0x00230B24, 0x00240D55, 0x00251CC5, 0x002606C8, 0x00271868, 0x00280369, 0x002916CA, 0x002A0CC9, 0x002B1D58, 0x002C0784, 0x002D060A, 0x002E064A, 0x002F0E2A, 0x0030032A, 0x00310B28, 0x00320688, 0x00330008, 0x003406C4, 0x00351864, 0x003601A8, 0x00370388, 0x0038078A, 0x00390604, 0x003A0644, 0x003B0E24, 0x003C004A, 0x003D18A4, 0x003E1B24, 0x003F00EA, 0x00400F0A, 0x00410249, 0x00420D5D, 0x00431CC4, 0x00440328, 0x00450B29, 0x004606C6, 0x0047076A, 0x00480368, 0x004916C5, 0x004A0789, 0x004B0605, 0x004C0CC8, 0x004D1954, 0x004E0645, 0x004F0E25, 0x00500325, 0x00510B26, 0x005206C9, 0x00530764, 0x005408A9, 0x00550009, 0x005601A9, 0x00570389, 0x00580785, 0x00590609, 0x005A0049, 0x005B18A9, 0x005C0649, 0x005D0E29, 0x005E1B29, 0x005F00E9, 0x00600365, 0x006116C6, 0x00620786, 0x00630608, 0x00640788, 0x00650606, 0x00660046, 0x006718A8, 0x006858A6, 0x00690145, 0x006A01E9, 0x006B178A, 0x006C01E8, 0x006D1785, 0x006E1E28, 0x006F0C65, 0x00700CC5, 0x00711D5C, 0x00720648, 0x00730E28, 0x00740646, 0x00750E26, 0x00761B28, 0x007700E6, 0x007801E5, 0x00791786, 0x007A1E29, 0x007B0C68, 0x007C1E24, 0x007D0C69, 0x007E0955, 0x007F03C9, 0x008003E9, 0x00810975, 0x00820C49, 0x00831E04, 0x00840C48, 0x00851E05, 0x008617A6, 0x008701C5, 0x008800C6, 0x00891B08, 0x008A0E06, 0x008B0666, 0x008C0E08, 0x008D0668, 0x008E1D7C, 0x008F0CE5, 0x00900C45, 0x00911E08, 0x009217A9, 0x009301C4, 0x009417AA, 0x009501C9, 0x00960169, 0x0097588A, 0x00981888, 0x00990066, 0x009A0709, 0x009B07A8, 0x009C0704, 0x009D07A6, 0x009E16E6, 0x009F0345, 0x00A000C9, 0x00A11B05, 0x00A20E09, 0x00A30669, 0x00A41885, 0x00A50065, 0x00A60706, 0x00A707A5, 0x00A803A9, 0x00A90189, 0x00AA0029, 0x00AB0889, 0x00AC0744, 0x00AD06E9, 0x00AE0B06, 0x00AF0229, 0x00B00E05, 0x00B10665, 0x00B21974, 0x00B30CE8, 0x00B4070A, 0x00B507A9, 0x00B616E9, 0x00B70348, 0x00B8074A, 0x00B906E6, 0x00BA0B09, 0x00BB0226, 0x00BC1CE4, 0x00BD0D7D, 0x00BE0269, 0x00BF08C9, 0x00C000CA, 0x00C11B04, 0x00C21884, 0x00C3006A, 0x00C40E04, 0x00C50664, 0x00C60708, 0x00C707AA, 0x00C803A8, 0x00C90184, 0x00CA0749, 0x00CB06E4, 0x00CC0020, 0x00CD0888, 0x00CE0B08, 0x00CF0224, 0x00D00E0A, 0x00D1066A, 0x00D20705, 0x00D307A4, 0x00D41D78, 0x00D50CE9, 0x00D616EA, 0x00D70349, 0x00D80745, 0x00D906E8, 0x00DA1CE9, 0x00DB0D75, 0x00DC0B04, 0x00DD0228, 0x00DE0268, 0x00DF08C8, 0x00E003A5, 0x00E10185, 0x00E20746, 0x00E306EA, 0x00E40748, 0x00E506E5, 0x00E61CE8, 0x00E70D79, 0x00E81D74, 0x00E95CE6, 0x00EA02E9, 0x00EB0849, 0x00EC02E8, 0x00ED0848, 0x00EE0086, 0x00EF0A08, 0x00F00021, 0x00F10885, 0x00F20B05, 0x00F3022A, 0x00F40B0A, 0x00F50225, 0x00F60265, 0x00F708C5, 0x00F802E5, 0x00F90845, 0x00FA0089, 0x00FB0A09, 0x00FC008A, 0x00FD0A0A, 0x00FE02A9, 0x00FF0062, };
return ROP3Table[dwIndex&0xFF]; }
BYTE SwapROP3_SrcDst(BYTE bRop3) { // swap 1,2 bit and 5,6 bit typedef struct { unsigned bit0 : 1; unsigned bit1 : 1; unsigned bit2 : 1; unsigned bit3 : 1;
unsigned bit4 : 1; unsigned bit5 : 1; unsigned bit6 : 1; unsigned bit7 : 1; } BITS; DWORD dwRop3 = bRop3; BITS bits = *(BITS*)&dwRop3;
unsigned t = bits.bit1; bits.bit1 = bits.bit2; bits.bit2 = t;
t = bits.bit5; bits.bit5 = bits.bit6; bits.bit6 = t;
return *(BYTE*)&bits; }
/********************************************************************* ** * MaskBlt [GDI32.@] */ //BOOL WINAPI MaskBlt(HDC hdcDest, INT nXDest, INT nYDest, // INT nWidth, INT nHeight, HDC hdcSource, // INT nXSrc, INT nYSrc, HBITMAP hbmMask, // INT xMask, INT yMask, DWORD dwRop)
// FIXME("(%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%ld): stub\n", // hdcDest,nXDest,nYDest,nWidth,nHeight,hdcSource,nXSrc,nYSrc, // hbmMask,xMask,yMask,dwRop);
BOOL WINAPI MaskBlt(HDC hdcDest, int nXDest, int nYDest, int nWidth, int nHeight, HDC hdcSrc, int nXSrc, int nYSrc, HBITMAP hbmMask, int xMask, int yMask, DWORD dwRop ) { HDC hDCMask; HBITMAP hOldMaskBitmap; HDC hDC1; HBITMAP hBitmap2; HBITMAP hOldBitmap2; HDC hDC2; HBITMAP hBitmap3; HBITMAP hOldBitmap3; DWORD dwRop3;
if ( hbmMask == NULL ) return BitBlt(hdcDest, nXDest, nYDest, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, FORE_ROP3(dwRop));
// 1. make mask bitmap's dc hDCMask = CreateCompatibleDC(hdcDest); hOldMaskBitmap = (HBITMAP)SelectObject(hDCMask, hbmMask); ASSERT ( hOldMaskBitmap );
// 2. make masked dest bitmap
// 2.1 make bitmap hDC1 = CreateCompatibleDC(hdcDest); ASSERT ( hDC1 ); hBitmap2 = CreateCompatibleBitmap(hdcDest, nWidth, nHeight); hOldBitmap2 = (HBITMAP)SelectObject(hDC1, hBitmap2); ASSERT ( hOldBitmap2 );
// 2.2 draw dest bitmap and mask // BitBlt(hDC1, 0, 0, nWidth, nHeight, hdcDest, nXDest, nYDest, FORE_ROP3(dwRop)); // BitBlt(hDC1, 0, 0, nWidth, nHeight, hDCMask, xMask, yMask, DSTERASE);
// 3. make masked src bitmap
// 3.1 make bitmap hDC2 = CreateCompatibleDC(hdcSrc); ASSERT ( hDC2 ); hBitmap3 = CreateCompatibleBitmap(hdcSrc, nWidth, nHeight); hOldBitmap3 = (HBITMAP)SelectObject(hDC2, hBitmap3); ASSERT ( hOldBitmap3 );
// 3.2 draw src bitmap and mask // dwRop3 = BACK_ROP3(dwRop); dwRop3 = ROP3FromIndex(SwapROP3_SrcDst(((dwRop)>>24)));
BitBlt(hDC2, 0, 0, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, dwRop3); BitBlt(hDC2, 0, 0, nWidth, nHeight, hDCMask, xMask, yMask, SRCAND);
// 4. combine two bitmap and copy it to hdcDest BitBlt(hDC1, 0, 0, nWidth, nHeight, hDC2, 0, 0, SRCPAINT); BitBlt(hdcDest, nXDest, nYDest, nWidth, nHeight, hDC1, 0, 0, SRCCOPY);
// 5. restore all object SelectObject(hDCMask, hOldMaskBitmap); SelectObject(hDC1, hOldBitmap2); SelectObject(hDC2, hOldBitmap3);
// 6. delete all temp object DeleteObject(hBitmap2); DeleteObject(hBitmap3);
DeleteDC(hDC1); DeleteDC(hDC2); DeleteDC(hDCMask);
return TRUE; // return 1; } ----------------------------------------------------------------
When I test this with my example code, it appears to change the other images as well even though I have not done anything with them.
any ideas?
By the way, I found this function at:
http://www.codeproject.com/bitmap/maskblt.asp
and modified it to work with wine.
cheers, Lonnie