Add matrix configs to DM

dm/DM.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 "CrashHandler.h"
 #include "DMJsonWriter.h"
 #include "DMSrcSink.h"
@@ skipping 363 matching lines @@
 
     if (FLAGS_matrix.count() == 4) {
         SkMatrix m;
         m.reset();
         m.setScaleX((SkScalar)atof(FLAGS_matrix[0]));
         m.setSkewX ((SkScalar)atof(FLAGS_matrix[1]));
         m.setSkewY ((SkScalar)atof(FLAGS_matrix[2]));
         m.setScaleY((SkScalar)atof(FLAGS_matrix[3]));
         VIA("matrix",  ViaMatrix,  m, wrapped);
         VIA("upright", ViaUpright, m, wrapped);
+    } else if (FLAGS_matrix.count() == 9) {
+        SkMatrix m;
+        m.reset();
+        m.setAll((SkScalar)atof(FLAGS_matrix[0]),
+                 (SkScalar)atof(FLAGS_matrix[1]),
+                 (SkScalar)atof(FLAGS_matrix[2]),
+                 (SkScalar)atof(FLAGS_matrix[3]),
+                 (SkScalar)atof(FLAGS_matrix[4]),
+                 (SkScalar)atof(FLAGS_matrix[5]),
+                 (SkScalar)atof(FLAGS_matrix[6]),
+                 (SkScalar)atof(FLAGS_matrix[7]),
+                 (SkScalar)atof(FLAGS_matrix[8]));
+
+        VIA("matrix",  ViaMatrix,  m, wrapped);
+        VIA("upright", ViaUpright, m, wrapped);

[mtklein, 2015/05/05 15:51:44]

I suspect ViaUpright won't really be a useful thing to have here with a general
matrix.  It's really geared to work with only scale/skew matrices.

     }
 
 #ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
     VIA("androidsdk", ViaAndroidSDK, wrapped);
 #endif
 
 #undef VIA
     return NULL;
 }
 
@@ skipping 361 matching lines @@
     }
     return 0;
 }
 
 #if !defined(SK_BUILD_FOR_IOS)
 int main(int argc, char** argv) {
     SkCommandLineFlags::Parse(argc, argv);
     return dm_main();
 }
 #endif