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Mouse part of big patch #1013937 (OSystem layer with bigger resolution)

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svn-id: r16800
This commit is contained in:
Eugene Sandulenko 2005-02-17 23:01:00 +00:00
parent e1323556c3
commit 78ee0bfdaf
8 changed files with 364 additions and 217 deletions
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40
common/scaler.cpp
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@ -169,6 +169,46 @@ void Normal3x(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPit
}
}
#define INTERPOLATE INTERPOLATE<bitFormat>
#define Q_INTERPOLATE Q_INTERPOLATE<bitFormat>
/**
* Trivial nearest-neighbour 1.5x scaler.
*/
template<int bitFormat>
void Normal1o5xTemplate(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch,
int width, int height) {
uint8 *r;
const uint32 dstPitch2 = dstPitch * 2;
const uint32 dstPitch3 = dstPitch * 3;
const uint32 srcPitch2 = srcPitch * 2;
assert(((int)dstPtr & 1) == 0);
while (height) {
r = dstPtr;
for (int i = 0; i < width; i += 2, r += 6) {
uint16 color0 = *(((const uint16 *)srcPtr) + i);
uint16 color1 = *(((const uint16 *)srcPtr) + i + 1);
uint16 color2 = *(((const uint16 *)(srcPtr + srcPitch)) + i);
uint16 color3 = *(((const uint16 *)(srcPtr + srcPitch)) + i + 1);
*(uint16 *)(r + 0) = color0;
*(uint16 *)(r + 2) = INTERPOLATE(color0, color1);
*(uint16 *)(r + 4) = color1;
*(uint16 *)(r + 0 + dstPitch) = INTERPOLATE(color0, color2);
*(uint16 *)(r + 2 + dstPitch) = Q_INTERPOLATE(color0, color1, color2, color3);
*(uint16 *)(r + 4 + dstPitch) = INTERPOLATE(color1, color3);
*(uint16 *)(r + 0 + dstPitch2) = color2;
*(uint16 *)(r + 2 + dstPitch2) = INTERPOLATE(color2, color3);
*(uint16 *)(r + 4 + dstPitch2) = color3;
}
srcPtr += srcPitch2;
dstPtr += dstPitch3;
height -= 2;
}
}
MAKE_WRAPPER(Normal1o5x)
/**
* The Scale2x filter, also known as AdvMame2x.
* See also http://scale2x.sourceforge.net