Test color correction in DM

src/core/SkColorSpace.cpp

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkAtomics.h"
 #include "SkColorSpace.h"
 #include "SkColorSpacePriv.h"
@@ skipping 585 matching lines @@
 bool load_matrix(SkMatrix44* toXYZ, const uint8_t* src, size_t len) {
     if (len < 48) {
         SkColorSpacePrintf("Matrix tag is too small (%d bytes).", len);
         return false;
     }
 
     float array[16];
     array[ 0] = SkFixedToFloat(read_big_endian_int(src));
     array[ 1] = SkFixedToFloat(read_big_endian_int(src + 4));
     array[ 2] = SkFixedToFloat(read_big_endian_int(src + 8));
-    array[ 3] = 0;
+    array[ 3] = SkFixedToFloat(read_big_endian_int(src + 36)); // translate R
     array[ 4] = SkFixedToFloat(read_big_endian_int(src + 12));
     array[ 5] = SkFixedToFloat(read_big_endian_int(src + 16));
     array[ 6] = SkFixedToFloat(read_big_endian_int(src + 20));
-    array[ 7] = 0;
+    array[ 7] = SkFixedToFloat(read_big_endian_int(src + 40)); // translate G
     array[ 8] = SkFixedToFloat(read_big_endian_int(src + 24));
     array[ 9] = SkFixedToFloat(read_big_endian_int(src + 28));
     array[10] = SkFixedToFloat(read_big_endian_int(src + 32));
-    array[11] = 0;
-    array[12] = SkFixedToFloat(read_big_endian_int(src + 36));  // translate R
-    array[13] = SkFixedToFloat(read_big_endian_int(src + 40));  // translate G
-    array[14] = SkFixedToFloat(read_big_endian_int(src + 44));
-    array[15] = 1;
+    array[11] = SkFixedToFloat(read_big_endian_int(src + 44)); // translate B
+    array[12] = 0.0f;
+    array[13] = 0.0f;
+    array[14] = 0.0f;
+    array[15] = 1.0f;
     toXYZ->setColMajorf(array);
     return true;
 }
 
 bool SkColorSpace::LoadA2B0(SkColorLookUpTable* colorLUT, SkGammaCurve* gammas, SkMatrix44* toXYZ,
                             const uint8_t* src, size_t len) {
     if (len < 32) {
         SkColorSpacePrintf("A to B tag is too small (%d bytes).", len);
         return false;
     }
@@ skipping 179 matching lines @@
                 }
             }
 
         }
         default:
             break;
     }
 
     return_null("ICC profile contains unsupported colorspace");
 }