SkImage_Codec is Lazy

src/image/SkImage_Raster.cpp

Index: src/image/SkImage_Raster.cpp
diff --git a/src/image/SkImage_Raster.cpp b/src/image/SkImage_Raster.cpp
index e4768af0ac17865da8e8bbd22881e57a6660439e..4841dae25c2a1c64b077fe4361cc29878f46698d 100644
--- a/src/image/SkImage_Raster.cpp
+++ b/src/image/SkImage_Raster.cpp
@@ -10,6 +10,7 @@
 #include "SkBitmap.h"
 #include "SkCanvas.h"
 #include "SkData.h"
+#include "SkDecodingImageGenerator.h"
 #include "SkMallocPixelRef.h"
 
 class SkImage_Raster : public SkImage_Base {
@@ -69,6 +70,10 @@ public:
                                   SkShader::TileMode,
                                   const SkMatrix* localMatrix) const SK_OVERRIDE;
 
+    SkImage_Raster(const SkBitmap& bitmap)
+        :INHERITED(bitmap.width(), bitmap.height())

[reed1, 2014/08/12 13:36:09]

tiny nit: space after : 

+        , fBitmap(bitmap) { }
+
 private:
     SkImage_Raster() : INHERITED(0, 0) {}
 
@@ -206,3 +211,17 @@ SkImage* SkNewImageFromPixelRef(const SkImageInfo& info, SkPixelRef* pr,
 SkPixelRef* SkBitmapImageGetPixelRef(SkImage* image) {
     return ((SkImage_Raster*)image)->getPixelRef();
 }
+
+SkImage* SkImage::NewEncodedData(SkData* data) {
+    if (NULL == data) {
+        return NULL;
+    }
+    SkBitmap bitmap;
+    if (!SkInstallDiscardablePixelRef(
+                SkDecodingImageGenerator::Create(
+                        data, SkDecodingImageGenerator::Options()),
+                &bitmap)) {
+        return NULL;
+    }
+    return SkNEW_ARGS(SkImage_Raster, (bitmap));
+}