commit c2a0ea6418988d4bcc0719f99b1a110cecd08679
author commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Wed Nov 06 10:08:38 2013 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Wed Nov 06 10:08:38 2013 +0000
tree a7469c12e8f9a196c04a0a8cf5a5fd625fa2fbd9
parent 6e3e42296b0d7a93325146d9c9a7e23ef90760fe

Perlin issue fixed

BUG=skia:1799
R=sugoi@chromium.org, sugoi@google.com, senorblanco@chromium.org

Author: bsalomon@google.com

Review URL: https://codereview.chromium.org/59173005

git-svn-id: http://skia.googlecode.com/svn/trunk@12150 2bbb7eff-a529-9590-31e7-b0007b416f81

src/effects/SkPerlinNoiseShader.cpp

diff --git a/src/effects/SkPerlinNoiseShader.cpp b/src/effects/SkPerlinNoiseShader.cpp
index af51afc..f2ce679 100644
--- a/src/effects/SkPerlinNoiseShader.cpp
+++ b/src/effects/SkPerlinNoiseShader.cpp
@@ -7,6 +7,7 @@
 
 #include "SkDither.h"
 #include "SkPerlinNoiseShader.h"
+#include "SkColorFilter.h"
 #include "SkFlattenableBuffers.h"
 #include "SkShader.h"
 #include "SkUnPreMultiply.h"
@@ -1295,6 +1296,16 @@
 GrEffectRef* SkPerlinNoiseShader::asNewEffect(GrContext* context, const SkPaint& paint) const {
     SkASSERT(NULL != context);
 
+    if (0 == fNumOctaves) {
+        SkColor clearColor = 0;
+        if (kFractalNoise_Type == fType) {
+            clearColor = SkColorSetARGB(paint.getAlpha() / 2, 127, 127, 127);
+        }
+        SkAutoTUnref<SkColorFilter> cf(SkColorFilter::CreateModeFilter(
+                                                clearColor, SkXfermode::kSrc_Mode));
+        return cf->asNewEffect(context);
+    }
+
     // Either we don't stitch tiles, either we have a valid tile size
     SkASSERT(!fStitchTiles || !fTileSize.isEmpty());