Ticket #8636: bs1mac_graphics.patch

diff -cr scummvm.old/engines/sword1/screen.cpp scummvm/engines/sword1/screen.cpp
*** scummvm.old/engines/sword1/screen.cpp       Fri Apr 13 06:45:37 2007
--- scummvm/engines/sword1/screen.cpp   Sun Apr 15 17:16:14 2007
***************
*** 136,141 ****
--- 136,143 ----
        uint8 *palData = (uint8*)_resMan->openFetchRes(id);
        if (start == 0) // force color 0 to black
                palData[0] = palData[1] = palData[2] = 0;
+       else if (start + length == 256) // and force color 255 to black as well
+               palData[(length-1)*3+0] = palData[(length-1)*3+1] = palData[(length-1)*3+2] = 0;
        for (uint32 cnt = 0; cnt < length; cnt++) {
                _targetPalette[(start + cnt) * 4 + 0] = palData[cnt * 3 + 0] << 2;
                _targetPalette[(start + cnt) * 4 + 1] = palData[cnt * 3 + 1] << 2;
***************
*** 358,364 ****
  
                for (uint16 cnty = 0; cnty < _scrnSizeY; cnty++)
                        for (uint16 cntx = 0; cntx < _scrnSizeX; cntx++) {
!                               if (*src)
                                        *dest = *src;
                                dest++;
                                src++;
--- 360,366 ----
  
                for (uint16 cnty = 0; cnty < _scrnSizeY; cnty++)
                        for (uint16 cntx = 0; cntx < _scrnSizeX; cntx++) {
!                               if (*src != 0 && *src != 255)
                                        *dest = *src;
                                dest++;
                                src++;