diff options
| -rw-r--r-- | gfx.cpp | 40 |
1 files changed, 39 insertions, 1 deletions
@@ -361,8 +361,36 @@ void Scumm::initBGBuffers(int height) } room = getResourceAddress(rtRoom, _roomResource); - if (_features & GF_SMALL_HEADER) { + if (_features & GF_OLD256) { + // FIXME - maybe this should check for multiple planes like we do + // for GF_SMALL_HEADER already. gdi._numZBuffer = 2; + } else if (_features & GF_SMALL_HEADER) { + // FIXME + #define DEBUG_ZPLANE_CODE + + ptr = findResourceData(MKID('SMAP'), room); +#ifdef DEBUG_ZPLANE_CODE + printf("Trying to determine room zplanes':\n"); + hexdump(ptr-6, 0x20); +#endif + + int off; + gdi._numZBuffer = 0; + off = READ_LE_UINT32(ptr); + for (i = 0; off && (i < 4); i++) { +#ifdef DEBUG_ZPLANE_CODE + printf("Plane %d\n", i); + hexdump(ptr, 0x20); +#endif + + gdi._numZBuffer++; + ptr += off; + off = READ_LE_UINT16(ptr); + } +#ifdef DEBUG_ZPLANE_CODE + printf("Real plane count = %d\n", gdi._numZBuffer); +#endif } else { ptr = findResource(MKID('RMIH'), findResource(MKID('RMIM'), room)); gdi._numZBuffer = READ_LE_UINT16(ptr + 8) + 1; @@ -723,8 +751,18 @@ void Gdi::drawBitmap(byte *ptr, VirtScreen *vs, int x, int y, int h, /* this is really ugly, FIXME */ if (ptr[-2] == 'B' && ptr[-1] == 'M' && READ_LE_UINT32(ptr - 6) > (READ_LE_UINT32(ptr) + 10)) { zplane_list[1] = smap_ptr + READ_LE_UINT32(ptr); + // FIXME - how does GF_OLD256 encode the multiple zplanes? + if (!(_vm->_features & GF_OLD256)) + for (i = 2; i < numzbuf; i++) { + zplane_list[i] = zplane_list[i-1] + READ_LE_UINT16(zplane_list[i-1]); + } } else if (ptr[-4] == 'O' && ptr[-3] == 'I' && READ_LE_UINT32(ptr - 8) > READ_LE_UINT32(ptr) + 12) { zplane_list[1] = smap_ptr + READ_LE_UINT32(ptr); + // FIXME - how does GF_OLD256 encode the multiple zplanes? + if (!(_vm->_features & GF_OLD256)) + for (i = 2; i < numzbuf; i++) { + zplane_list[i] = zplane_list[i-1] + READ_LE_UINT16(zplane_list[i-1]); + } } else { zplane_list[1] = 0; } |