diff options
Diffstat (limited to 'scumm/gfx.cpp')
| -rw-r--r-- | scumm/gfx.cpp | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/scumm/gfx.cpp b/scumm/gfx.cpp index 0643f73a24..f7663d63bd 100644 --- a/scumm/gfx.cpp +++ b/scumm/gfx.cpp @@ -231,6 +231,16 @@ void Gdi::init() { _textSurface.bytesPerPixel = 1; _numStrips = _vm->_screenWidth / 8; +#ifdef V7_SMOOTH_SCROLLING_HACK + if (_vm->_version >= 7) + _numStrips += 1; + // TODO: Just increasing _numStrips isn't sufficient, and will cause + // problems in some cases. For example in In rooms which are *exactly* of + // width equal to _screenWidth, we now may cause an out-of-bounds access. + // One possible soution might be to replace _numStrips by a method + // Gdi::getNumStrips() which then returns the proper value, computed + // dynamically. +#endif } @@ -256,6 +266,10 @@ void ScummEngine::initVirtScreen(VirtScreenNumber slot, int number, int top, int vs->backBuf = NULL; vs->bytesPerPixel = 1; vs->pitch = width; +#ifdef V7_SMOOTH_SCROLLING_HACK + if (_version >= 7) + vs->pitch += 8; +#endif size = vs->pitch * vs->h; if (scrollable) { @@ -438,7 +452,7 @@ void Gdi::drawStripToScreen(VirtScreen *vs, int x, int width, int top, int botto return; assert(top >= 0 && bottom <= vs->h); // Paranoia checks - assert(x >= 0 && width <= vs->w); + assert(x >= 0 && width <= vs->pitch); assert(_textSurface.pixels); assert(_compositeBuf); @@ -577,7 +591,7 @@ void ScummEngine::redrawBGAreas() { if (findResource(MKID('BMAP'), room) != NULL) { if (_fullRedraw) { _bgNeedsRedraw = false; - gdi.drawBMAPBg(room, &virtscr[0], _screenStartStrip, _screenWidth); + gdi.drawBMAPBg(room, &virtscr[0], _screenStartStrip, virtscr[0].w); } cont = false; } else if (findResource(MKID('SMAP'), room) == NULL) { |