add pipecanvas

samplecode/SampleApp.cpp

Index: samplecode/SampleApp.cpp
diff --git a/samplecode/SampleApp.cpp b/samplecode/SampleApp.cpp
index 62970302df50d53de5e5ae7a221b23278b8afdaf..045da9afc1ea7fc1a89395bc743c379b6db174ce 100644
--- a/samplecode/SampleApp.cpp
+++ b/samplecode/SampleApp.cpp
@@ -34,6 +34,9 @@
 #include "SkWindow.h"
 #include "sk_tool_utils.h"
 
+#include "SkReadBuffer.h"
+#include "SkStream.h"
+
 #if SK_SUPPORT_GPU
 #   include "gl/GrGLInterface.h"
 #   include "gl/GrGLUtil.h"
@@ -696,11 +699,14 @@ DEFINE_string(pdfPath, "", "Path to direcotry of pdf files.");
 #endif
 
 #include "SkTaskGroup.h"
+#include "SkForceLinking.h"
 
 SampleWindow::SampleWindow(void* hwnd, int argc, char** argv, DeviceManager* devManager)
     : INHERITED(hwnd)
     , fDevManager(nullptr) {
 
+    SkForceLinking(false);
+
     SkCommandLineFlags::Parse(argc, argv);
 
     fCurrIndex = -1;
@@ -1305,7 +1311,10 @@ SkCanvas* SampleWindow::beforeChildren(SkCanvas* canvas) {
     } else if (fSaveToSKP) {
         canvas = fRecorder.beginRecording(9999, 9999, nullptr, 0);
     } else if (fUsePicture) {
-        canvas = fRecorder.beginRecording(9999, 9999, nullptr, 0);
+        fPipeStream = new SkDynamicMemoryWStream;
+        canvas = fPipeSerializer.beginWrite(SkRect::MakeWH(this->width(), this->height()),
+                                            fPipeStream);
+//        canvas = fRecorder.beginRecording(9999, 9999, nullptr, 0);
     } else {
         canvas = this->INHERITED::beforeChildren(canvas);
     }
@@ -1367,17 +1376,15 @@ void SampleWindow::afterChildren(SkCanvas* orig) {
     }
 
     if (fUsePicture) {
-        sk_sp<SkPicture> picture(fRecorder.finishRecordingAsPicture());
-
-        // serialize/deserialize?
-        if (false) {
-            SkDynamicMemoryWStream wstream;
-            picture->serialize(&wstream);
-
-            SkAutoTDelete<SkStream> rstream(wstream.detachAsStream());
-            picture = SkPicture::MakeFromStream(rstream);
+        if (true) {
+            fPipeSerializer.endWrite();
+            sk_sp<SkData> data(fPipeStream->copyToData());
+            fPipeDeserializer.playback(data->data(), data->size(), orig);
+            delete fPipeStream;
+        } else {
+            sk_sp<SkPicture> picture(fRecorder.finishRecordingAsPicture());
+            orig->drawPicture(picture.get());
         }
-        orig->drawPicture(picture.get());
     }
 
     // Do this after presentGL and other finishing, rather than in afterChild