1 files changed, 51 insertions, 0 deletions
diff --git a/src/shaders/gradients/Sk4fLinearGradient.h b/src/shaders/gradients/Sk4fLinearGradient.h
new file mode 100644
index 0000000000..eebd30fbf5
--- /dev/null
+++ b/src/shaders/gradients/Sk4fLinearGradient.h
@@ -0,0 +1,51 @@
+/*
+ * 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 Sk4fLinearGradient_DEFINED
+#define Sk4fLinearGradient_DEFINED
+
+#include "Sk4fGradientBase.h"
+#include "SkLinearGradient.h"
+
+class SkLinearGradient::
+LinearGradient4fContext final : public GradientShaderBase4fContext {
+public:
+    LinearGradient4fContext(const SkLinearGradient&, const ContextRec&);
+
+    void shadeSpan(int x, int y, SkPMColor dst[], int count) override;
+    void shadeSpan4f(int x, int y, SkPM4f dst[], int count) override;
+
+protected:
+    void mapTs(int x, int y, SkScalar ts[], int count) const override;
+
+    bool onChooseBlitProcs(const SkImageInfo&, BlitState*) override;
+
+private:
+    using INHERITED = GradientShaderBase4fContext;
+
+    template<DstType, ApplyPremul, TileMode>
+    class LinearIntervalProcessor;
+
+    template <DstType dstType, ApplyPremul premul>
+    void shadePremulSpan(int x, int y, typename DstTraits<dstType, premul>::Type[],
+                         int count) const;
+
+    template <DstType dstType, ApplyPremul premul, SkShader::TileMode tileMode>
+    void shadeSpanInternal(int x, int y, typename DstTraits<dstType, premul>::Type[],
+                           int count) const;
+
+    const Sk4fGradientInterval* findInterval(SkScalar fx) const;
+
+    bool isFast() const { return fDstToPosClass == kLinear_MatrixClass; }
+
+    static void D32_BlitBW(BlitState*, int x, int y, const SkPixmap& dst, int count);
+    static void D64_BlitBW(BlitState*, int x, int y, const SkPixmap& dst, int count);
+
+    mutable const Sk4fGradientInterval* fCachedInterval;
+};
+
+#endif // Sk4fLinearGradient_DEFINED