[NOT FOR COMMIT] Fully replace SkCanvas uses.

skia/ext/cdl_shader.h

+/*
+ * 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 SKIA_EXT_CDL_SHADER_H_
+#define SKIA_EXT_CDL_SHADER_H_
+
+#include "cdl_common.h"
+
+#if CDL_ENABLED
+
+#include "third_party/skia/include/core/SkMatrix.h"
+#include "third_party/skia/include/core/SkRefCnt.h"
+#include "third_party/skia/include/core/SkShader.h"
+
+class CdlPicture;
+
+class SK_API CdlShader : public SkRefCnt {
+ public:
+  CdlShader(const SkMatrix* local_matrix = NULL);
+  ~CdlShader() override;
+
+  static sk_sp<CdlShader> WrapSkShader(sk_sp<SkShader> shader);
+
+  static sk_sp<CdlShader> MakeImageShader(sk_sp<SkImage>,
+                                          SkShader::TileMode tx,
+                                          SkShader::TileMode ty,
+                                          const SkMatrix* local_matrix);
+
+  static sk_sp<CdlShader> MakePictureShader(sk_sp<CdlPicture> picture,
+                                            SkShader::TileMode tmx,
+                                            SkShader::TileMode tmy,
+                                            const SkMatrix* local_matrix,
+                                            const SkRect* tile);
+
+  const SkMatrix& getLocalMatrix() const { return local_matrix_; }
+
+  virtual sk_sp<SkShader> createSkShader() = 0;
+  virtual bool isOpaque() const;
+
+ private:
+  SkMatrix local_matrix_;
+};
+
+inline SK_API sk_sp<CdlShader> WrapSkShader(sk_sp<SkShader> shader) {
+  return CdlShader::WrapSkShader(shader);
+}
+
+inline SK_API sk_sp<CdlShader> MakeCdlImageShader(sk_sp<SkImage> image,
+                                           SkShader::TileMode tx,
+                                           SkShader::TileMode ty,
+                                           const SkMatrix* local_matrix) {
+  return CdlShader::MakeImageShader(image, tx, ty, local_matrix);
+}
+
+#else  // CDL_ENABLED
+
+#include "third_party/skia/include/core/SkImage.h"
+#include "third_party/skia/include/core/SkShader.h"
+
+inline SK_API sk_sp<CdlShader> WrapSkShader(sk_sp<SkShader> shader) {
+  return shader;
+}
+
+inline SK_API sk_sp<CdlShader> MakeCdlImageShader(sk_sp<SkImage> image,
+                                           SkShader::TileMode tx,
+                                           SkShader::TileMode ty,
+                                           const SkMatrix* local_matrix) {
+  return image->makeShader(tx, ty, local_matrix);
+}
+
+#endif  // CDL_ENABLED
+
+#endif  // SKIA_EXT_CDL_SHADER_H_