move static arrays into impl, to avoid multiple copies

src/core/SkImageInfo.cpp

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkImageInfo.h"
 #include "SkReadBuffer.h"
 #include "SkWriteBuffer.h"
 
+const uint8_t gPrivate_SkColorTypeBytesPerPixel[] = {
+    0,  // Unknown
+    1,  // Alpha_8
+    2,  // RGB_565
+    2,  // ARGB_4444
+    4,  // RGBA_8888
+    4,  // BGRA_8888
+    1,  // kIndex_8
+    1,  // kGray_8
+    8,  // kRGBA_F16
+};
+static_assert(SK_ARRAY_COUNT(gPrivate_SkColorTypeBytesPerPixel) == (size_t)(kLastEnum_SkColorType + 1),
+              "size_mismatch_with_SkColorType_enum");
+
+const uint8_t gPrivate_SkColorTypeShiftPerPixel[] = {
+    0,  // Unknown
+    0,  // Alpha_8
+    1,  // RGB_565
+    1,  // ARGB_4444
+    2,  // RGBA_8888
+    2,  // BGRA_8888
+    0,  // kIndex_8
+    0,  // kGray_8
+    3,  // kRGBA_F16
+};
+static_assert(SK_ARRAY_COUNT(gPrivate_SkColorTypeShiftPerPixel) == (size_t)(kLastEnum_SkColorType + 1),
+              "size_mismatch_with_SkColorType_enum");
+
 static bool profile_type_is_valid(SkColorProfileType profileType) {
     return (profileType >= 0) && (profileType <= kLastEnum_SkColorProfileType);
 }
 
 static bool alpha_type_is_valid(SkAlphaType alphaType) {
     return (alphaType >= 0) && (alphaType <= kLastEnum_SkAlphaType);
 }
 
 static bool color_type_is_valid(SkColorType colorType) {
     return (colorType >= 0) && (colorType <= kLastEnum_SkColorType);
@@ skipping 92 matching lines @@
     }
     // here x,y are either 0 or negative
     fPixels = ((char*)fPixels - y * fRowBytes - x * fInfo.bytesPerPixel());
     // the intersect may have shrunk info's logical size
     fInfo = fInfo.makeWH(srcR.width(), srcR.height());
     fX = srcR.x();
     fY = srcR.y();
 
     return true;
 }