commit 234f036b3e731e06e616c5291157d3bb4fbfdee2
author sugoi <sugoi@chromium.org> Thu Oct 23 13:59:52 2014 -0700
committer Commit bot <commit-bot@chromium.org> Thu Oct 23 13:59:52 2014 -0700
tree 37acef5dcc153d42d4b3fe0351ea1f6de280fbd1
parent d0777fd2cf25fc6a1a2b010313cc4abdd7d33734

Adding an option to render only the shadow in SkDropShadowImageFilter

This is basically how blink uses the filter. Currently, I can't use it for "ShadowOnly" mode with the filter at all, but instead of copying the code and risking to have the codepaths diverge, I'm simply going to add the option here.

BUG=skia:

Review URL: https://codereview.chromium.org/646213004

gm/imagefiltersscaled.cpp

diff --git a/gm/imagefiltersscaled.cpp b/gm/imagefiltersscaled.cpp
index cf4dc4e..8b44bd0 100644
--- a/gm/imagefiltersscaled.cpp
+++ b/gm/imagefiltersscaled.cpp
@@ -110,8 +110,8 @@
         SkImageFilter* filters[] = {
             SkBlurImageFilter::Create(SkIntToScalar(4), SkIntToScalar(4)),
             SkDropShadowImageFilter::Create(SkIntToScalar(5), SkIntToScalar(10),
-                                            SkIntToScalar(3), SkIntToScalar(3),
-                                            SK_ColorYELLOW),
+                SkIntToScalar(3), SkIntToScalar(3), SK_ColorYELLOW,
+                SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode),
             SkDisplacementMapEffect::Create(SkDisplacementMapEffect::kR_ChannelSelectorType,
                                             SkDisplacementMapEffect::kR_ChannelSelectorType,
                                             SkIntToScalar(12),