GM: add --writeChecksumBasedFilenames option

gm/gm_expectations.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm_expectations.h"
 #include "SkBitmapHasher.h"
 #include "SkImageDecoder.h"
@@ skipping 91 matching lines @@
         Json::Value jsonTypeValuePair;
         if (fIsValid) {
             jsonTypeValuePair.append(Json::Value(kJsonKey_Hashtype_Bitmap_64bitMD5));
             jsonTypeValuePair.append(Json::UInt64(fHashDigest));
         } else {
             jsonTypeValuePair.append(Json::Value("INVALID"));
         }
         return jsonTypeValuePair;
     }
 
+    SkString GmResultDigest::getHashType() const {
+        // TODO(epoger): The current implementation assumes that the
+        // result digest is always of type kJsonKey_Hashtype_Bitmap_64bitMD5
+        return SkString(kJsonKey_Hashtype_Bitmap_64bitMD5);
+    }
+
+    SkString GmResultDigest::getDigestValue() const {
+        // TODO(epoger): The current implementation assumes that the
+        // result digest is always of type kJsonKey_Hashtype_Bitmap_64bitMD5
+        //
+        // TODO(epoger): If SkString had an appendU64() method, it would be
+        // more efficient to use that here... but it doesn't.
+        SkString retval;
+        retval.printf("%lu", fHashDigest);
+        return retval;
+    }
+
 
     // Expectations class...
 
     Expectations::Expectations(bool ignoreFailure) {
         fIgnoreFailure = ignoreFailure;
     }
 
     Expectations::Expectations(const SkBitmap& bitmap, bool ignoreFailure) {
         fBitmap = bitmap;
         fIgnoreFailure = ignoreFailure;
@@ skipping 127 matching lines @@
         Json::Reader reader;
         if (!reader.parse(bytes, bytes+size, *jsonRoot)) {
             gm_fprintf(stderr, "error parsing JSON file %s\n", jsonPath);
             DEBUGFAIL_SEE_STDERR;
             return false;
         }
         return true;
     }
 
 }