From 723cd88d5696ed0c5197e4cbde225a9fa51dbc32 Mon Sep 17 00:00:00 2001
From: Fabien Freling <public@ffreling.com>
Date: Wed, 6 Aug 2014 23:22:29 +0200
Subject: [PATCH] Do a memset for padding.

---
 Makefile     |  2 +-
 rotation.cpp | 18 ++++++------------
 2 files changed, 7 insertions(+), 13 deletions(-)

diff --git a/Makefile b/Makefile
index c2bdf66..eed1a54 100644
--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,7 @@ SRC       = rotation.cpp \
 HEADERS   = image.h \
 	    pnm.h
 OBJS      = $(patsubst %.cpp,%.o,$(SRC))
-IMG       = img/lena_64.pgm
+IMG       = img/lena_1024.pgm
 
 all: $(OBJS)
 	$(CXX) $(CXXFLAGS) $(LFLAGS) $(OBJS) -o $(BUILD_DIR)/rotation
diff --git a/rotation.cpp b/rotation.cpp
index 0341e9f..7abc5e4 100644
--- a/rotation.cpp
+++ b/rotation.cpp
@@ -600,12 +600,9 @@ Image* rotate(Image const& src, double angle)
     }
 
     // Left padding
-    for (int x = 0; x < left_padding; ++x, ++buffer_index)
-    {
-      // Set to black value
-      // TODO: memset
-      buffer[buffer_index] = 50;
-    }
+    // TODO: set to background value
+    memset(buffer + buffer_index, 50, left_padding * sizeof (pvalue_t));
+    buffer_index += left_padding;
 
     // Border
     for (int x = 0; x < left_border; ++x, ++buffer_index)
@@ -654,12 +651,9 @@ Image* rotate(Image const& src, double angle)
     }
 
     // Right padding
-    for (int x = 0; x < right_padding; ++x, ++buffer_index)
-    {
-      // Set to black value
-      // TODO: memset
-      buffer[buffer_index] = 100;
-    }
+    // TODO: set to background value
+    memset(buffer + buffer_index, 100, right_padding * sizeof (pvalue_t));
+    buffer_index += right_padding;
 
     src_rotated_origin += qdy;
   }