1 files changed, 105 insertions, 0 deletions
diff --git a/x11/xzoom/files/patch-ab b/x11/xzoom/files/patch-ab
new file mode 100644
index 000000000000..46728bbc46f1
--- /dev/null
+++ b/x11/xzoom/files/patch-ab
@@ -0,0 +1,105 @@
+--- scale.h.orig	Sat Jan 15 14:23:58 2000
++++ scale.h	Sat Jan 15 00:00:00 2000
+@@ -0,0 +1,102 @@
++/* scale image from SRC to DST - parameterized by type T */
++
++/* get pixel address of point (x,y) in image t */
++#define getP(t,x,y) \
++	(T *) (&ximage[t]->data[(ximage[t]->xoffset+(x))*sizeof(T) + \
++	                        (y)*ximage[t]->bytes_per_line])
++
++{
++	int i, j, k;
++
++	/* copy scaled lines from SRC to DST */
++	j = flipxy ? width[SRC] - 1 : height[SRC] - 1;
++	do {
++		T *p1;
++		T *p2;
++		int p2step;
++		T *p1_save;
++
++		/* p1 point to begining of scanline j*magy in DST */
++		p1 = getP(DST,0,j*magy);
++		p1_save = p1;
++		/* p2 point to begining of scanline j in SRC */
++		/* if flipy then line height[SRC]-1-j */
++		p2 = getP(SRC,0,flipy ? (height[SRC]-1-j) : j);
++
++		if (flipxy)
++		{
++			p2 = getP(SRC,flipy ? j : (width[SRC]-1-j),0);
++			p2step = ximage[SRC]->bytes_per_line / sizeof(T);
++
++			if (flipx)
++			{
++				p2 += p2step * (height[SRC]-1);
++				p2step = -p2step;
++			}
++
++			i = height[SRC];
++			do {
++				T c = *p2; p2 += p2step;
++				k = magx; do *p1++ = c; while (--k > 0);
++			} while (--i > 0);
++		}
++		else if (flipx)
++		{
++			p2 += width[SRC];
++			i = width[SRC];
++			do {
++				T c = *--p2;
++				k = magx; do *p1++ = c; while (--k > 0);
++			} while (--i > 0);
++		}
++		else
++		{
++			i = width[SRC];
++			do {
++				T c = *p2++;
++				k = magx; do *p1++ = c; while (--k > 0);
++			} while (--i > 0);
++		}
++
++		/* draw vertical grid */
++		if (gridy && magx >= 2)
++		{
++			p1 = p1_save - 1;
++			i = magx;
++			k = flipxy ? height[SRC] : width[SRC];
++			do {
++				p1 += i;
++				*p1 ^= ~((T)0);
++			} while (--k > 0);
++		}
++
++		/* duplicate that line as needed */
++		if (magy > 1)
++		{
++			/* p1 point to begining of scanline j*magy in DST */
++			p1 = p1_save;
++			/* p2 points to begining of next line */
++			p2 = p1;
++			p2step = ximage[DST]->bytes_per_line / sizeof(T);
++
++			i = width[DST] * sizeof(T);
++			k = magy - 1;
++			do {
++				p2 += p2step;
++				memcpy(p2, p1, i);
++			} while (--k > 0);
++
++			/* draw horizontal grid */
++			if (gridx && magy >= 2)
++			{
++				k = width[DST];
++				do {
++					*p2++ ^= ~((T)0);
++				} while (--k > 0);
++			}
++		}
++	} while (--j >= 0);
++}
++
++#undef getP
++