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HOPKINS: Fix bug with clipping in Sprite_Vesa

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This commit is contained in:
Paul Gilbert 2012-09-23 11:25:21 +10:00
parent 01bcd87ba4
commit 4f40d98af0
1 changed files with 9 additions and 19 deletions
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28
engines/hopkins/graphics.cpp
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@ -1321,32 +1321,22 @@ void GraphicsManager::Sprite_Vesa(byte *surface, const byte *spriteData, int xp,
byte byteVal;
int xc = 0;
// Loop through sequences of bytes to skip or output
while ((byteVal = *srcP) != 253) {
++srcP;
int width = READ_LE_UINT16(srcP);
srcP += 2;
if (byteVal != 254) {
// Skip over output bytes
if (byteVal == 254) {
// Copy pixel range
for (int xv = 0; xv < width; ++xv, ++xc, ++spriteP, ++tempDestP) {
if (clip_y == 0 && xc >= clip_x && xc < clip_x1)
*tempDestP = *spriteP;
}
} else {
// Skip over bytes
tempDestP += width;
xc += width;
} else {
// Output byte range
while (width-- > 0) {
// Get the next byte
byteVal = *spriteP;
if (clip_y == 0 && xc >= clip_x && xc < clip_x1)
// Not clipped, so display it
*tempDestP = byteVal;
// Move to next pixel
xc++;
++srcP;
++tempDestP;
}
}
srcP += 2;
}
if (clip_y > 0)