add pipecanvas

dm/DMSrcSink.cpp

Index: dm/DMSrcSink.cpp
diff --git a/dm/DMSrcSink.cpp b/dm/DMSrcSink.cpp
index fcc4a33a1aa22249080bb65ed3bd58978a2e44f6..c2ebff852136378f41c9fc1c8b458b0610d4b337 100644
--- a/dm/DMSrcSink.cpp
+++ b/dm/DMSrcSink.cpp
@@ -30,6 +30,7 @@
 #include "SkOpts.h"
 #include "SkPictureData.h"
 #include "SkPictureRecorder.h"
+#include "SkPipe.h"
 #include "SkRandom.h"
 #include "SkRecordDraw.h"
 #include "SkRecorder.h"
@@ -1242,6 +1243,15 @@ Error XPSSink::draw(const Src& src, SkBitmap*, SkWStream* dst, SkString*) const
     }
     return draw_skdocument(src, doc.get(), dst);
 }
+
+/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
+
+PipeSink::PipeSink() {}
+
+Error PipeSink::draw(const Src& src, SkBitmap*, SkWStream* dst, SkString*) const {
+    return src.draw(SkPipeSerializer().beginWrite(SkRect::Make(src.size()), dst));
+}
+
 /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
 
 SKPSink::SKPSink() {}
@@ -1512,6 +1522,22 @@ Error ViaDefer::draw(const Src& src, SkBitmap* bitmap, SkWStream* stream, SkStri
 
 /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
 
+Error ViaPipe::draw(const Src& src, SkBitmap* bitmap, SkWStream* stream, SkString* log) const {
+    auto size = src.size();
+    return draw_to_canvas(fSink, bitmap, stream, log, size, [&](SkCanvas* canvas) -> Error {
+        SkDynamicMemoryWStream tmpStream;
+        Error err = src.draw(SkPipeSerializer().beginWrite(SkRect::Make(size), &tmpStream));
+        if (!err.isEmpty()) {
+            return err;
+        }
+        sk_sp<SkData> data = tmpStream.makeData();
+        SkPipeDeserializer().playback(data->data(), data->size(), canvas);
+        return check_against_reference(bitmap, src, fSink);
+    });
+}
+
+/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
+
 // Draw the Src into two pictures, then draw the second picture into the wrapped Sink.
 // This tests that any shortcuts we may take while recording that second picture are legal.
 Error ViaSecondPicture::draw(