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authorRobin Watts <robin.watts@artifex.com>2016-10-06 18:16:02 +0100
committerRobin Watts <robin.watts@artifex.com>2016-10-07 16:56:46 +0100
commitaec11fac6a14bc4337dbb9601f070d6010413a84 (patch)
treeb42ce42d7608bb73c46af42d9e6b28f107338ad0 /source/fitz
parentc5f8d745e4dc42404409a2c166181d85bc87934b (diff)
downloadmupdf-aec11fac6a14bc4337dbb9601f070d6010413a84.tar.xz
SWAR optimisation in plotters.
Diffstat (limited to 'source/fitz')
-rw-r--r--source/fitz/draw-paint.c31
1 files changed, 23 insertions, 8 deletions
diff --git a/source/fitz/draw-paint.c b/source/fitz/draw-paint.c
index 33ab20c8..8ac04002 100644
--- a/source/fitz/draw-paint.c
+++ b/source/fitz/draw-paint.c
@@ -1000,18 +1000,33 @@ template_span_with_mask_3_general(byte * restrict dp, int da, const byte * restr
}
masa = FZ_REVERSE_COMBINE(sp[3], ma);
masa = FZ_EXPAND(masa);
- *dp = FZ_COMBINE2(*sp, ma, *dp, masa);
- sp++; dp++;
- *dp = FZ_COMBINE2(*sp, ma, *dp, masa);
- sp++; dp++;
- *dp = FZ_COMBINE2(*sp, ma, *dp, masa);
- sp++; dp++;
if (da)
{
+ const uint32_t mask = 0x00ff00ff;
+ uint32_t d0 = *(uint32_t *)dp;
+ uint32_t d1 = d0>>8;
+ uint32_t s0 = *(uint32_t *)sp;
+ uint32_t s1 = s0>>8;
+ sp += 4;
+ d0 &= mask;
+ d1 &= mask;
+ s0 &= mask;
+ s1 &= mask;
+ d0 = (((s0 * ma)>>8) & mask) + (((d0 * masa)>>8) & mask);
+ d1 = (((s1 * ma)>>8) & mask) + (((d1 * masa)>>8) & mask);
+ d0 |= d1<<8;
+ *(uint32_t *)dp = d0;
+ dp += 4;
+ }
+ else
+ {
*dp = FZ_COMBINE2(*sp, ma, *dp, masa);
- dp++;
+ sp++; dp++;
+ *dp = FZ_COMBINE2(*sp, ma, *dp, masa);
+ sp++; dp++;
+ *dp = FZ_COMBINE2(*sp, ma, *dp, masa);
+ sp+=2; dp++;
}
- sp++;
}
else
{