1 files changed, 67 insertions, 0 deletions
diff --git a/gfx/skia/skia/src/pdf/SkPDFGradientShader.h b/gfx/skia/skia/src/pdf/SkPDFGradientShader.h
new file mode 100644
index 0000000000..d1e4dea594
--- /dev/null
+++ b/gfx/skia/skia/src/pdf/SkPDFGradientShader.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#ifndef SkPDFGradientShader_DEFINED
+#define SkPDFGradientShader_DEFINED
+
+#include "include/core/SkShader.h"
+#include "src/pdf/SkPDFTypes.h"
+#include "src/pdf/SkPDFUtils.h"
+#include "src/shaders/SkShaderBase.h"
+
+class SkMatrix;
+class SkPDFDocument;
+struct SkIRect;
+
+namespace SkPDFGradientShader {
+
+SkPDFIndirectReference Make(SkPDFDocument* doc,
+                            SkShader* shader,
+                            const SkMatrix& matrix,
+                            const SkIRect& surfaceBBox);
+
+struct Key {
+    SkShaderBase::GradientType fType;
+    SkShaderBase::GradientInfo fInfo;
+    std::unique_ptr<SkColor[]> fColors;
+    std::unique_ptr<SkScalar[]> fStops;
+    SkMatrix fCanvasTransform;
+    SkMatrix fShaderTransform;
+    SkIRect fBBox;
+    uint32_t fHash;
+};
+
+struct KeyHash {
+    uint32_t operator()(const Key& k) const { return k.fHash; }
+};
+
+inline bool operator==(const SkShaderBase::GradientInfo& u, const SkShaderBase::GradientInfo& v) {
+    return u.fColorCount    == v.fColorCount
+        && u.fPoint[0]      == v.fPoint[0]
+        && u.fPoint[1]      == v.fPoint[1]
+        && u.fRadius[0]     == v.fRadius[0]
+        && u.fRadius[1]     == v.fRadius[1]
+        && u.fTileMode      == v.fTileMode
+        && u.fGradientFlags == v.fGradientFlags
+        && SkPackedArrayEqual(u.fColors, v.fColors, u.fColorCount)
+        && SkPackedArrayEqual(u.fColorOffsets, v.fColorOffsets, u.fColorCount);
+}
+
+inline bool operator==(const Key& u, const Key& v) {
+    SkASSERT(u.fInfo.fColors       == u.fColors.get());
+    SkASSERT(u.fInfo.fColorOffsets == u.fStops.get());
+    SkASSERT(v.fInfo.fColors       == v.fColors.get());
+    SkASSERT(v.fInfo.fColorOffsets == v.fStops.get());
+    return u.fType            == v.fType
+        && u.fInfo            == v.fInfo
+        && u.fCanvasTransform == v.fCanvasTransform
+        && u.fShaderTransform == v.fShaderTransform
+        && u.fBBox            == v.fBBox;
+}
+inline bool operator!=(const Key& u, const Key& v) { return !(u == v); }
+
+}  // namespace SkPDFGradientShader
+#endif  // SkPDFGradientShader_DEFINED