commit 8f4ba76742c329bc4d5e1b8ca376d27922bd00b1
author emmaleer <emmaleer@google.com> Fri Aug 14 07:44:46 2015 -0700
committer Commit bot <commit-bot@chromium.org> Fri Aug 14 07:44:46 2015 -0700
tree ee3b69a6972cb3e16e4c0e85723477bea9dd5387
parent 1bef9f59c566cc54c2259cc4d0171c115157cd1c

SkScaledCodec class

This class does scaling by using a scanlineDecoder.
getScanlines and skipScanlines are used for y sampling,
the swizzler is used for x sampling

this class is currently only working for png and jpeg images
I will update other Codec types to work soon

For SkJpegCodec to implement width wise swizzling it now
uses a swizzler. I ran performance tests on this change.
Here are the performance test results:
https://docs.google.com/a/google.com/spreadsheets/d/1D7-Q_GXD_dI68LZO005NNvb8Wq2Ee0wEBEPG72671yw/edit?usp=sharing

BUG=skia:

Committed: https://skia.googlesource.com/skia/+/0944100ac89f797714eeae0cf2875e2335ff52ee

Committed: https://skia.googlesource.com/skia/+/d518ea7927f9f4e0ed5b4134d1b4f48243855a47

Committed: https://skia.googlesource.com/skia/+/b157917507d4f7d2651f0aeb566d31603cc02240

Review URL: https://codereview.chromium.org/1260673002

src/codec/SkBmpStandardCodec.cpp

diff --git a/src/codec/SkBmpStandardCodec.cpp b/src/codec/SkBmpStandardCodec.cpp
index 08146fc..1dfd04e 100644
--- a/src/codec/SkBmpStandardCodec.cpp
+++ b/src/codec/SkBmpStandardCodec.cpp
@@ -237,7 +237,7 @@
 
     // Create swizzler
     fSwizzler.reset(SkSwizzler::CreateSwizzler(config,
-            colorPtr, dstInfo, opts.fZeroInitialized));
+            colorPtr, dstInfo, opts.fZeroInitialized, this->getInfo()));
 
     if (NULL == fSwizzler.get()) {
         return false;