Move SkColorMatrixFilter implementation to core.

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1648933002

Review URL: https://codereview.chromium.org/1648933002

1 files changed, 44 insertions, 0 deletions

diff --git a/src/core/SkColorMatrixFilterRowMajor255.h b/src/core/SkColorMatrixFilterRowMajor255.h
new file mode 100644
index 0000000000..453dd41bff
--- /dev/null
+++ b/src/core/SkColorMatrixFilterRowMajor255.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkColorMatrixFilter_DEFINED
+#define SkColorMatrixFilter_DEFINED
+
+#include "SkColorFilter.h"
+
+class SK_API SkColorMatrixFilterRowMajor255 : public SkColorFilter {
+public:
+    explicit SkColorMatrixFilterRowMajor255(const SkScalar array[20]);
+
+    void filterSpan(const SkPMColor src[], int count, SkPMColor[]) const override;
+    void filterSpan4f(const SkPM4f src[], int count, SkPM4f[]) const override;
+    uint32_t getFlags() const override;
+    bool asColorMatrix(SkScalar matrix[20]) const override;
+    SkColorFilter* newComposed(const SkColorFilter*) const override;
+
+#if SK_SUPPORT_GPU
+    const GrFragmentProcessor* asFragmentProcessor(GrContext*) const override;
+#endif
+
+    SK_TO_STRING_OVERRIDE()
+
+    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkColorMatrixFilter)
+
+protected:
+    void flatten(SkWriteBuffer&) const override;
+
+private:
+    SkScalar        fMatrix[20];
+    float           fTranspose[20]; // for Sk4s
+    uint32_t        fFlags;
+
+    void initState(const SkScalar array[20]);
+
+    typedef SkColorFilter INHERITED;
+};
+
+#endif