Add the lazy decoder from PictureFlags to SkImageDecoder

tools/render_pictures_main.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "CopyTilesRenderer.h"
 #include "SkBitmap.h"
 #include "SkDevice.h"
 #include "SkCommandLineFlags.h"
-#include "SkForceLinking.h"
 #include "SkGraphics.h"
 #include "SkImageDecoder.h"
 #include "SkImageEncoder.h"
 #include "SkMath.h"
 #include "SkOSFile.h"
 #include "SkPicture.h"
 #include "SkStream.h"
 #include "SkString.h"
 #include "PictureRenderer.h"
 #include "PictureRenderingFlags.h"
 #include "picture_utils.h"
 
-// Required to ensure that image decoders get linked correctly.
-__SK_FORCE_IMAGE_DECODER_LINKING;
-
 // Flags used by this file, alphabetically:
 DEFINE_int32(clone, 0, "Clone the picture n times before rendering.");
 DECLARE_bool(deferImageDecoding);
 DEFINE_int32(maxComponentDiff, 256, "Maximum diff on a component, 0 - 256. Components that differ "
              "by more than this amount are considered errors, though all diffs are reported. "
              "Requires --validate.");
 DECLARE_string(readPath);
 DEFINE_bool(writeEncodedImages, false, "Any time the skp contains an encoded image, write it to a "
             "file rather than decoding it. Requires writePath to be set. Skips drawing the full "
             "skp to a file. Not compatible with deferImageDecoding.");
 DEFINE_string2(writePath, w, "", "Directory to write the rendered images.");
 DEFINE_bool(writeWholeImage, false, "In tile mode, write the entire rendered image to a "
             "file, instead of an image for each tile.");
 DEFINE_bool(validate, false, "Verify that the rendered image contains the same pixels as "
             "the picture rendered in simple mode. When used in conjunction with --bbh, results "
             "are validated against the picture rendered in the same mode, but without the bbh.");
 
 static void make_output_filepath(SkString* path, const SkString& dir,
                                  const SkString& name) {
     sk_tools::make_filepath(path, dir, name);
     // Remove ".skp"
     path->remove(path->size() - 4, 4);
 }
 
-// Defined in PictureRenderingFlags.cpp
-extern bool lazy_decode_bitmap(const void* buffer, size_t size, SkBitmap* bitmap);
-
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 
 /**
  *  Table for translating from format of data to a suffix.
  */
 struct Format {
     SkImageDecoder::Format  fFormat;
     const char*             fSuffix;
 };
 static const Format gFormats[] = {
@@ skipping 79 matching lines @@
 
     SkFILEStream inputStream;
     inputStream.setPath(inputPath.c_str());
     if (!inputStream.isValid()) {
         SkDebugf("Could not open file %s\n", inputPath.c_str());
         return false;
     }
 
     SkPicture::InstallPixelRefProc proc;
     if (FLAGS_deferImageDecoding) {
-        proc = &lazy_decode_bitmap;
+        proc = &SkImageDecoder::LazyDecodeBitmap;
     } else if (FLAGS_writeEncodedImages) {
         SkASSERT(!FLAGS_writePath.isEmpty());
         reset_image_file_base_name(inputFilename);
         proc = &write_image_to_file;
     } else {
         proc = &SkImageDecoder::DecodeMemory;
     }
 
     SkDebugf("deserializing... %s\n", inputPath.c_str());
 
@@ skipping 278 matching lines @@
 #endif
 #endif
     return 0;
 }
 
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char * const argv[]) {
     return tool_main(argc, (char**) argv);
 }
 #endif