commit 88d064d0e481949184305c7b1d6b282dddffac39
author reed <reed@google.com> Mon Oct 12 11:30:02 2015 -0700
committer Commit bot <commit-bot@chromium.org> Mon Oct 12 11:30:02 2015 -0700
tree d0e264a2d1289cdfc46a5026ca45a7a57095c250
parent f028003cf4429813ae1ac6624efa51ecbb062ed3

add applyFilter() to SkImage

Result:
- clients can get a filtered version of an image without having to setup a temp drawing environment
- for some cases, the process is more efficient even than (deprecated) drawSprite, since there is no need to draw/copy the result

Impl:
- made Proxy virtual so we don't need to have an existing device to use it

This, in conjunction with LocalMatrixImageFilter, should allow us to simplify and optimize ApplyImageFilter() in cc/output/gl_renderer.cc

BUG=skia:

Review URL: https://codereview.chromium.org/1390913005

src/core/SkCanvas.cpp

diff --git a/src/core/SkCanvas.cpp b/src/core/SkCanvas.cpp
index 4952ae2..6914963 100644
--- a/src/core/SkCanvas.cpp
+++ b/src/core/SkCanvas.cpp
@@ -1300,7 +1300,7 @@
         SkImageFilter* filter = paint->getImageFilter();
         SkIPoint pos = { x - iter.getX(), y - iter.getY() };
         if (filter && !dstDev->canHandleImageFilter(filter)) {
-            SkImageFilter::Proxy proxy(dstDev);
+            SkImageFilter::DeviceProxy proxy(dstDev);
             SkBitmap dst;
             SkIPoint offset = SkIPoint::Make(0, 0);
             const SkBitmap& src = srcDev->accessBitmap(false);
@@ -1352,7 +1352,7 @@
         SkImageFilter* filter = paint->getImageFilter();
         SkIPoint pos = { x - iter.getX(), y - iter.getY() };
         if (filter && !iter.fDevice->canHandleImageFilter(filter)) {
-            SkImageFilter::Proxy proxy(iter.fDevice);
+            SkImageFilter::DeviceProxy proxy(iter.fDevice);
             SkBitmap dst;
             SkIPoint offset = SkIPoint::Make(0, 0);
             SkMatrix matrix = *iter.fMatrix;