From 7e8759495855ce97f0422051af3e650f89d33ad4 Mon Sep 17 00:00:00 2001
From: Glenn Kennard <glenn.kennard@gmail.com>
Date: Sun, 30 Oct 2005 11:45:23 +0100
Subject: Optimize loadtile.

Drops rendering time for first page of wildcatvpds.pdf from 3 to 2 seconds.
---
 raster/imageunpack.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/raster/imageunpack.c b/raster/imageunpack.c
index a3642d3d..451967c8 100644
--- a/raster/imageunpack.c
+++ b/raster/imageunpack.c
@@ -154,19 +154,24 @@ static void loadtile1(byte *src, int sw, byte *dst, int dw, int w, int h, int pa
 			src += sw; \
 			dst += dw; \
 		} \
-	else \
+	else { \
+                int tpad; \
 		while (h--) \
 		{ \
 			byte *dp = dst; \
+                        tpad = 0; \
 			for (x = 0; x < w; x++) \
 			{ \
-				if ((x % pad) == 0) \
-					*dp++ = 255; \
+                                if (!tpad--) { \
+                                        tpad = pad-1; \
+                                        *dp++ = 255; \
+                                } \
 				*dp++ = getf(src, x); \
 			} \
 			src += sw; \
 			dst += dw; \
 		} \
+        } \
 }
 
 static void loadtile2(byte * restrict src, int sw, byte * restrict dst, int dw, int w, int h, int pad)
-- 
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