make 'full' test do multiples of 3 which includes 0 and 255.

BUG=324
TESTED=libyuvTest.TestFullYUV
R=brucedawson@google.com

Review URL: https://webrtc-codereview.appspot.com/35829004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1242 16f28f9a-4ce2-e073-06de-1de4eb20be90

README.chromium

 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 1242
+Version: 1243
 License: BSD
 License File: LICENSE
 

include/libyuv/version.h

@@ -11,6 +11,6 @@
 #ifndef INCLUDE_LIBYUV_VERSION_H_  // NOLINT
 #define INCLUDE_LIBYUV_VERSION_H_
 
-#define LIBYUV_VERSION 1242
+#define LIBYUV_VERSION 1243
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT

unit_test/color_test.cc

@@ -269,12 +269,15 @@ TEST_F(libyuvTest, TestGreyYUV) {
   }
 }
 
-// TODO(fbarchard): Speed up this test or disable it.
+// This full test should be run occassionally to test all values are accurate.
+// TODO(fbarchard): Determine error distribution.
 TEST_F(libyuvTest, TestFullYUV) {
+  // If using small image, step faster.
+  int step = benchmark_width_ <= 128 ? 3 : 1;
   int r0, g0, b0, r1, g1, b1;
-  for (int y = 0; y < 256; ++y) {
-    for (int u = 0; u < 256; ++u) {
-      for (int v = 0; v < 256; ++v) {
+  for (int y = 0; y < 256; y += step) {
+    for (int u = 0; u < 256; u += step) {
+      for (int v = 0; v < 256; v += step) {
         YUVToRGBReference(y, u, v, &r0, &g0, &b0);
         YUVToRGB(y, u, v, &r1, &g1, &b1);
         EXPECT_NEAR(r0, r1, ERROR_R);