change old picture serialization to really handle images

include/c/sk_types.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 // EXPERIMENTAL EXPERIMENTAL EXPERIMENTAL EXPERIMENTAL
 // DO NOT USE -- FOR INTERNAL TESTING ONLY
 
@@ skipping 50 matching lines @@
     sk_colortype_t  colorType;
     sk_alphatype_t  alphaType;
 } sk_imageinfo_t;
 
 typedef struct {
     float   x;
     float   y;
 } sk_point_t;
 
 typedef struct {
+    int32_t left;
+    int32_t top;
+    int32_t right;
+    int32_t bottom;
+} sk_irect_t;
+
+typedef struct {
     float   left;
     float   top;
     float   right;
     float   bottom;
 } sk_rect_t;
 
 typedef struct {
     float   mat[9];
 } sk_matrix_t;
 
@@ skipping 11 matching lines @@
 //////////////////////////////////////////////////////////////////////////////////////////
 
 #ifdef __cplusplus
     class SkCanvas;
     void sk_test_capi(SkCanvas*);
 #endif
 
 SK_C_PLUS_PLUS_END_GUARD
 
 #endif