SkScaledCodec class

src/codec/SkSwizzler.h

Index: src/codec/SkSwizzler.h
diff --git a/src/codec/SkSwizzler.h b/src/codec/SkSwizzler.h
index b00ee14e0699189f9834ccc7624ef8ee8924c0f8..a8ff3ea7977a9d70fce0837dc711bbafebbc2e5d 100644
--- a/src/codec/SkSwizzler.h
+++ b/src/codec/SkSwizzler.h
@@ -202,6 +202,10 @@ public:
         SkASSERT(kDesignateRow_NextMode != fNextMode);
         return fDstRow;
     }
+    /**
+     *  set the sample size in the x direction

[scroggo, 2015/07/27 15:09:19]

Must be >= 1

[emmaleer, 2015/07/27 18:31:39]

Acknowledged.

+     */
+    void setSampleX(int sampleX);
 
 private:
 
@@ -245,6 +249,8 @@ private:
     void*               fDstRow;
     const size_t        fDstRowBytes;
     int                 fCurrY;
+    int                 fX0;              // first X coord to sample. Is constant

[scroggo, 2015/07/27 15:09:19]

These are actually not const - they are modified inside setSampleX

[emmaleer, 2015/07/27 18:31:38]

Acknowledged.

+    int                 fSampleX;         // step between X samples. Is constant
 
     SkSwizzler(RowProc proc, const SkPMColor* ctable, int deltaSrc,
                const SkImageInfo& info, void* dst, size_t rowBytes);