SkScaledCodec class

dm/DMSrcSink.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "DMSrcSink.h"
 #include "SamplePipeControllers.h"
 #include "SkCodec.h"
 #include "SkCommonFlags.h"
 #include "SkData.h"
 #include "SkDeferredCanvas.h"
 #include "SkDocument.h"
 #include "SkError.h"
 #include "SkFunction.h"
 #include "SkImageGenerator.h"
 #include "SkMultiPictureDraw.h"
 #include "SkNullCanvas.h"
 #include "SkOSFile.h"
 #include "SkPictureData.h"
 #include "SkPictureRecorder.h"
 #include "SkRandom.h"
 #include "SkRecordDraw.h"
 #include "SkRecorder.h"
 #include "SkSVGCanvas.h"
 #include "SkScanlineDecoder.h"
 #include "SkStream.h"
 #include "SkXMLWriter.h"
+#include "SkScaledCodec.h"
 
 DEFINE_bool(multiPage, false, "For document-type backends, render the source"
             " into multiple pages");
 
 static bool lazy_decode_bitmap(const void* src, size_t size, SkBitmap* dst) {
     SkAutoTUnref<SkData> encoded(SkData::NewWithCopy(src, size));
     return encoded && SkInstallDiscardablePixelRef(encoded, dst);
 }
 
 namespace DM {
@@ skipping 37 matching lines @@
     // let the GPU handle it.
     return flags.type != SinkFlags::kRaster
         || flags.approach != SinkFlags::kDirect;
 }
 
 Error CodecSrc::draw(SkCanvas* canvas) const {
     SkAutoTUnref<SkData> encoded(SkData::NewFromFileName(fPath.c_str()));
     if (!encoded) {
         return SkStringPrintf("Couldn't read %s.", fPath.c_str());
     }
-    SkAutoTDelete<SkCodec> codec(SkCodec::NewFromData(encoded));
+    SkAutoTDelete<SkCodec> codec(SkScaledCodec::NewFromData(encoded));
     if (NULL == codec.get()) {
-        return SkStringPrintf("Couldn't create codec for %s.", fPath.c_str());
+        // scaledCodec not supported, try normal codec
+        codec.reset(SkCodec::NewFromData(encoded));
+        if (NULL == codec.get()) {
+            return SkStringPrintf("Couldn't create codec for %s.", fPath.c_str());
+        }
     }
 
     // Choose the color type to decode to
     SkImageInfo decodeInfo = codec->getInfo();
     SkColorType canvasColorType = canvas->imageInfo().colorType();
     switch (fDstColorType) {
         case kIndex8_Always_DstColorType:
             decodeInfo = codec->getInfo().makeColorType(kIndex_8_SkColorType);
             if (kRGB_565_SkColorType == canvasColorType) {
                 return Error::Nonfatal("Testing non-565 to 565 is uninteresting.");
@@ skipping 339 matching lines @@
                 left += decodeInfo.width();
             }
             return "";
         }
     }
     return "";
 }
 
 SkISize CodecSrc::size() const {
     SkAutoTUnref<SkData> encoded(SkData::NewFromFileName(fPath.c_str()));
-    SkAutoTDelete<SkCodec> codec(SkCodec::NewFromData(encoded));
-    if (NULL != codec) {
-        SkISize size = codec->getScaledDimensions(fScale);
-        return size;
-    } else {
-        return SkISize::Make(0, 0);
+    SkAutoTDelete<SkCodec> codec(SkScaledCodec::NewFromData(encoded));
+    if (NULL == codec) {
+        // scaledCodec not supported, try regular codec
+        codec.reset(SkCodec::NewFromData(encoded));
+        if (NULL == codec) {
+            return SkISize::Make(0, 0);
+        }
     }
+    SkISize size = codec->getScaledDimensions(fScale);
+    return size;
 }
 
 Name CodecSrc::name() const {
     if (1.0f == fScale) {
         return SkOSPath::Basename(fPath.c_str());
     } else {
         return SkStringPrintf("%s_%.3f", SkOSPath::Basename(fPath.c_str()).c_str(), fScale);
     }
 }
 
@@ skipping 609 matching lines @@
             skr.visit<void>(i, drawsAsSingletonPictures);
         }
         SkAutoTUnref<SkPicture> macroPic(macroRec.endRecordingAsPicture());
 
         canvas->drawPicture(macroPic);
         return "";
     });
 }
 
 }  // namespace DM