1 files changed, 65 insertions, 0 deletions
diff --git a/render/archppc.c b/render/archppc.c
new file mode 100644
index 00000000..2d0fee1d
--- /dev/null
+++ b/render/archppc.c
@@ -0,0 +1,65 @@
+/*
+ * PowerPC specific render optims live here
+ */
+
+#include <fitz.h>
+
+typedef unsigned char byte;
+
+#ifdef HAVE_ALTIVEC
+
+static void srow1ppc(byte *src, byte *dst, int w, int denom)
+{
+	int x, left;
+	int sum;
+
+	left = 0;
+	sum = 0;
+
+	for (x = 0; x < w; x++)
+	{
+		sum += *src++;
+		if (++left == denom)
+		{
+			left = 0;
+			*dst++ = sum / denom;
+			sum = 0;
+		}
+	}
+
+	if (left)
+		*dst++ = sum / left;
+}
+
+static void scol1ppc(byte *src, byte *dst, int w, int denom)
+{
+	int x, y;
+	unsigned char *s;
+	int sum;
+
+	for (x = 0; x < w; x++)
+	{
+		s = src + x;
+		sum = 0;
+		for (y = 0; y < denom; y++)
+			sum += s[y * w];
+		*dst++ = sum / denom;
+	}
+}
+
+#endif /* HAVE_ALTIVEC */
+
+#if defined (ARCH_PPC)
+void
+fz_accelerate(void)
+{
+#  ifdef HAVE_ALTIVEC
+	if (fz_cpuflags & HAVE_ALTIVEC)
+	{
+		fz_srow1 = srow1ppc;
+		fz_scol1 = scol1ppc;
+	}
+#  endif
+}
+#endif
+