diff options
| -rw-r--r-- | engines/scumm/gfx.cpp | 50 |
1 files changed, 48 insertions, 2 deletions
diff --git a/engines/scumm/gfx.cpp b/engines/scumm/gfx.cpp index 2811c2cbe9..5811ff6bed 100644 --- a/engines/scumm/gfx.cpp +++ b/engines/scumm/gfx.cpp @@ -1599,12 +1599,36 @@ void Gdi::drawBitmap(const byte *ptr, VirtScreen *vs, int x, int y, const int wi } } } + +#if 0 + // HACK: blit mask(s) onto normal screen. Useful to debug masking + for (i = 0; i < numzbuf; i++) { + byte *dst1, *dst2; + + dst1 = dst2 = (byte *)vs->pixels + y * vs->pitch + (x + k) * 8; + if (vs->hasTwoBuffers) + dst2 = vs->backBuf + y * vs->pitch + (x + k) * 8; + mask_ptr = getMaskBuffer(x + k, y, i); + + for (int h = 0; h < height; h++) { + int maskbits = *mask_ptr; + for (int j = 0; j < 8; j++) { + if (maskbits & 0x80) + dst1[j] = dst2[j] = 12 + i; + maskbits <<= 1; + } + dst1 += vs->pitch; + dst2 += vs->pitch; + mask_ptr += _numStrips; + } + } +#endif } } /** * Draw a bitmap onto a virtual screen. This is main drawing method for room backgrounds - * used throughout in 7.2+ HE versions. + * used throughout in 71+ HE versions. * * @note This function essentially is a stripped down & special cased version of * the generic Gdi::drawBitmap() method. @@ -1657,7 +1681,7 @@ void Gdi::drawBMAPBg(const byte *ptr, VirtScreen *vs) { return; uint32 offs; - for (int stripnr = 0; stripnr < _numStrips; stripnr++) + for (int stripnr = 0; stripnr < _numStrips; stripnr++) { for (int i = 1; i < numzbuf; i++) { if (!zplane_list[i]) continue; @@ -1670,6 +1694,28 @@ void Gdi::drawBMAPBg(const byte *ptr, VirtScreen *vs) { decompressMaskImg(mask_ptr, z_plane_ptr, vs->h); } } + +#if 0 + // HACK: blit mask(s) onto normal screen. Useful to debug masking + for (int i = 0; i < numzbuf; i++) { + byte *dst1 = (byte *)vs->pixels + stripnr * 8; + byte *dst2 = vs->backBuf + stripnr * 8; + + mask_ptr = getMaskBuffer(stripnr, 0, i); + for (int h = 0; h < vs->h; h++) { + int maskbits = *mask_ptr; + for (int j = 0; j < 8; j++) { + if (maskbits & 0x80) + dst1[j] = dst2[j] = 12 + i; + maskbits <<= 1; + } + dst1 += vs->pitch; + dst2 += vs->pitch; + mask_ptr += _numStrips; + } + } +#endif + } } void Gdi::drawBMAPObject(const byte *ptr, VirtScreen *vs, int obj, int x, int y, int w, int h) { |