DM: lazy decoding on SKP playback

dm/DMSrcSink.cpp

Index: dm/DMSrcSink.cpp
diff --git a/dm/DMSrcSink.cpp b/dm/DMSrcSink.cpp
index b44f1d78180e94e9d9f5505789024e5db42c4007..7e38b87f1ac9e4c29dd952ec06c2f4f7939dd144 100644
--- a/dm/DMSrcSink.cpp
+++ b/dm/DMSrcSink.cpp
@@ -1,7 +1,9 @@
 #include "DMSrcSink.h"
 #include "SamplePipeControllers.h"
 #include "SkCommonFlags.h"
+#include "SkData.h"
 #include "SkDocument.h"
+#include "SkImageGenerator.h"
 #include "SkMultiPictureDraw.h"
 #include "SkNullCanvas.h"
 #include "SkOSFile.h"
@@ -108,13 +110,19 @@ Name ImageSrc::name() const {
 static const SkRect kSKPViewport = {0,0, 1000,1000};
 
 SKPSrc::SKPSrc(Path path) : fPath(path) {}
+namespace {
+bool lazy_decode_bitmap(const void* src, size_t size, SkBitmap* dst) {

[mtklein, 2015/02/23 17:01:10]

static instead?

[hal.canary, 2015/02/23 18:16:35]

Done.

+    SkAutoTUnref<SkData> encoded(SkData::NewWithCopy(src, size));
+    return encoded.get() ? SkInstallDiscardablePixelRef(encoded, dst) : false;
+}
+}  // namespace
 
 Error SKPSrc::draw(SkCanvas* canvas) const {
     SkAutoTDelete<SkStream> stream(SkStream::NewFromFile(fPath.c_str()));
     if (!stream) {
         return SkStringPrintf("Couldn't read %s.", fPath.c_str());
     }
-    SkAutoTUnref<SkPicture> pic(SkPicture::CreateFromStream(stream));
+    SkAutoTUnref<SkPicture> pic(SkPicture::CreateFromStream(stream, &lazy_decode_bitmap));
     if (!pic) {
         return SkStringPrintf("Couldn't decode %s as a picture.", fPath.c_str());
     }