add pipecanvas

dm/DMSrcSink.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef DMSrcSink_DEFINED
 #define DMSrcSink_DEFINED
 
@@ skipping 315 matching lines @@
 
 class XPSSink : public Sink {
 public:
     XPSSink();
 
     Error draw(const Src&, SkBitmap*, SkWStream*, SkString*) const override;
     const char* fileExtension() const override { return "xps"; }
     SinkFlags flags() const override { return SinkFlags{ SinkFlags::kVector, SinkFlags::kDirect }; }
 };
 
+class PipeSink : public Sink {
+public:
+    PipeSink();
+    
+    Error draw(const Src&, SkBitmap*, SkWStream*, SkString*) const override;
+    const char* fileExtension() const override { return "skpipe"; }
+    SinkFlags flags() const override { return SinkFlags{ SinkFlags::kVector, SinkFlags::kDirect }; }
+};
+
 class RasterSink : public Sink {
 public:
     explicit RasterSink(SkColorType, sk_sp<SkColorSpace> = nullptr);
 
     Error draw(const Src&, SkBitmap*, SkWStream*, SkString*) const override;
     const char* fileExtension() const override { return "png"; }
     SinkFlags flags() const override { return SinkFlags{ SinkFlags::kRaster, SinkFlags::kDirect }; }
 private:
     SkColorType         fColorType;
     sk_sp<SkColorSpace> fColorSpace;
@@ skipping 55 matching lines @@
     explicit ViaSerialization(Sink* sink) : Via(sink) {}
     Error draw(const Src&, SkBitmap*, SkWStream*, SkString*) const override;
 };
 
 class ViaPicture : public Via {
 public:
     explicit ViaPicture(Sink* sink) : Via(sink) {}
     Error draw(const Src&, SkBitmap*, SkWStream*, SkString*) const override;
 };
 
+class ViaPipe : public Via {
+public:
+    explicit ViaPipe(Sink* sink) : Via(sink) {}
+    Error draw(const Src&, SkBitmap*, SkWStream*, SkString*) const override;
+};
+
 class ViaDefer : public Via {
 public:
     explicit ViaDefer(Sink* sink) : Via(sink) {}
     Error draw(const Src&, SkBitmap*, SkWStream*, SkString*) const override;
 };
 
 class ViaTiles : public Via {
 public:
     ViaTiles(int w, int h, SkBBHFactory*, Sink*);
     Error draw(const Src&, SkBitmap*, SkWStream*, SkString*) const override;
@@ skipping 28 matching lines @@
 
 class ViaLite : public Via {
 public:
     explicit ViaLite(Sink* sink) : Via(sink) {}
     Error draw(const Src&, SkBitmap*, SkWStream*, SkString*) const override;
 };
 
 }  // namespace DM
 
 #endif//DMSrcSink_DEFINED