record dither setting so we can replay it when we (re)decode

git-svn-id: http://skia.googlecode.com/svn/trunk@368 2bbb7eff-a529-9590-31e7-b0007b416f81

2 files changed, 7 insertions, 0 deletions

diff --git a/include/images/SkImageRef.h b/include/images/SkImageRef.h
index 6ab6e525ff..9c9896f6fc 100644
--- a/include/images/SkImageRef.h
+++ b/include/images/SkImageRef.h
@@ -43,6 +43,10 @@ public:
     */
     SkImageRef(SkStream*, SkBitmap::Config config, int sampleSize = 1);
     virtual ~SkImageRef();
+
+    /** this value is passed onto the decoder. Default is true
+     */
+    void setDitherImage(bool dither) { fDoDither = dither; }
     
     /** Return true if the image can be decoded. If so, and bitmap is non-null,
         call its setConfig() with the corresponding values, but explicitly will
@@ -89,6 +93,7 @@ private:
     SkStream*               fStream;
     SkBitmap::Config        fConfig;
     int                     fSampleSize;
+    bool                    fDoDither;
     bool                    fErrorInDecoding;
     
     friend class SkImageRefPool;
diff --git a/src/images/SkImageRef.cpp b/src/images/SkImageRef.cpp
index cff57aa32b..7ef5f40418 100644
--- a/src/images/SkImageRef.cpp
+++ b/src/images/SkImageRef.cpp
@@ -19,6 +19,7 @@ SkImageRef::SkImageRef(SkStream* stream, SkBitmap::Config config,
     fStream = stream;
     fConfig = config;
     fSampleSize = sampleSize;
+    fDoDither = true;
     fPrev = fNext = NULL;
     fFactory = NULL;
 
@@ -104,6 +105,7 @@ bool SkImageRef::prepareBitmap(SkImageDecoder::Mode mode) {
         SkAutoTDelete<SkImageDecoder> ad(codec);
 
         codec->setSampleSize(fSampleSize);
+        codec->setDitherImage(fDoDither);
         if (this->onDecode(codec, fStream, &fBitmap, fConfig, mode)) {
             return true;
         }