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DM: Add partial fix to drawing explosions

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This commit is contained in:
Bendegúz Nagy 2016-09-12 15:49:25 +02:00
parent 3b3572a110
commit 06d6e118eb
2 changed files with 26 additions and 5 deletions
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28
engines/dm/gfx.cpp
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@ -866,10 +866,30 @@ void DisplayMan::fillBoxBitmap(byte *destBitmap, Box &box, Color color, int16 by
}
void DisplayMan::blitBoxFilledWithMaskedBitmap(byte *src, byte *dest, byte *mask, byte *tmp, Box& box,
int16 lastUnitIndex, int16 firstUnitIndex, int16 destByteWidth, Color transparent,
int16 xPos, int16 yPos, int16 destHeight, int16 height2) {
// make sure to take care of inclusive boundaries, color can have 0x8000 flag to not use mask
warning("STUB: blitBoxFilledWithMaskedBitmap");
int16 lastUnitIndex, int16 firstUnitIndex, int16 destByteWidth, Color transparent,
int16 xPos, int16 yPos, int16 destHeight, int16 height2) {
// FIXME: does not produce the same effect as the original
byte nextUnitIndex = firstUnitIndex;
bool useMask = !(transparent & k0x0080_BlitDoNotUseMask);
transparent = (Color)(transparent & ~(k0x0080_BlitDoNotUseMask)); // clear flag 0x0080
for (byte next_y = box._y1; next_y <= box._y2; next_y++) { // '<=' for inclusive boundaries
for (byte next_x = box._x1; next_x <= box._x2; next_x++) { // '<=' for inclusive boundaries
byte *nextDestPixel = dest + next_y * destByteWidth * 2 + next_x;
byte nextSrcPixel = src[nextUnitIndex];
if (nextSrcPixel != transparent) {
if (useMask && mask && *mask++) {
*nextDestPixel = *mask & nextSrcPixel;
} else
*nextDestPixel = nextSrcPixel;
}
if (++nextUnitIndex >= lastUnitIndex)
nextUnitIndex = 0; // 0 is not an error
}
}
}
void DisplayMan::flipBitmapHorizontal(byte *bitmap, uint16 byteWidth, uint16 height) {