thirdparty/scummvm
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TINYGL: Fixed a bug with image clipping.

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This commit is contained in:
Stefano Musumeci 2014-08-05 13:20:18 +02:00
parent 7bacf3c6b5
commit 78aa22180b
1 changed files with 12 additions and 4 deletions
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16
graphics/tinygl/zblit.cpp
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@ -121,16 +121,26 @@ public:
if (dstX >= scissorRect.right || dstY >= scissorRect.bottom)
return false;
if (dstX + width < scissorRect.left || dstY + height < scissorRect.top) {
return false;
}
if (dstX < scissorRect.left) {
srcX += scissorRect.left - dstX;
srcX += (scissorRect.left - dstX);
width -= (scissorRect.left - dstX);
dstX = scissorRect.left;
}
if (dstY < scissorRect.top) {
srcY += scissorRect.top - dstY;
srcY += (scissorRect.top - dstY);
height -= (scissorRect.top - dstY);
dstY = scissorRect.top;
}
if (width < 0 || height < 0) {
return false;
}
if (dstX + width > scissorRect.right)
clampWidth = scissorRect.right - dstX;
else
@ -141,8 +151,6 @@ public:
else
clampHeight = height;
return true;
}