From 9444bdd32b4a3dcd1c5ac4099adade1b5ba167b7 Mon Sep 17 00:00:00 2001
From: Mike Reed <reed@google.com>
Date: Fri, 5 May 2017 12:23:42 -0400
Subject: composecolorfilter can now append stages

Bug: skia:
Change-Id: I46b54e5fd09de16b467142a5501b226273182d52
Reviewed-on: https://skia-review.googlesource.com/15615
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Reed <reed@google.com>
---
 src/core/SkColorFilter.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src')

diff --git a/src/core/SkColorFilter.cpp b/src/core/SkColorFilter.cpp
index 166d772668..6dcee068ea 100644
--- a/src/core/SkColorFilter.cpp
+++ b/src/core/SkColorFilter.cpp
@@ -102,6 +102,16 @@ public:
     }
 #endif
 
+    bool onAppendStages(SkRasterPipeline* p, SkColorSpace* dst, SkArenaAlloc* scratch,
+                        bool shaderIsOpaque) const override {
+        bool innerIsOpaque = shaderIsOpaque;
+        if (!(fInner->getFlags() & kAlphaUnchanged_Flag)) {
+            innerIsOpaque = false;
+        }
+        return fInner->appendStages(p, dst, scratch, shaderIsOpaque) &&
+               fOuter->appendStages(p, dst, scratch, innerIsOpaque);
+    }
+
 #if SK_SUPPORT_GPU
     sk_sp<GrFragmentProcessor> asFragmentProcessor(GrContext* context,
                                                    SkColorSpace* dstColorSpace) const override {
-- 
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