Move convolver, image_operations, and skia_utils from base/gfx to skia/ext....

skia/ext/skia_utils_win.cc

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "base/gfx/skia_utils.h"
+#include <windows.h>
 
-#include "base/logging.h"
+#include "skia/ext/skia_utils_win.h"
+
 #include "SkRect.h"
 #include "SkGradientShader.h"
 
 namespace {
 
-COMPILE_ASSERT(offsetof(RECT, left) == offsetof(SkIRect, fLeft), o1);
-COMPILE_ASSERT(offsetof(RECT, top) == offsetof(SkIRect, fTop), o2);
-COMPILE_ASSERT(offsetof(RECT, right) == offsetof(SkIRect, fRight), o3);
-COMPILE_ASSERT(offsetof(RECT, bottom) == offsetof(SkIRect, fBottom), o4);
+// Compiler assert from base/logging.h
+template <bool>
+struct CompileAssert {
+};
+#undef COMPILE_ASSERT
+#define COMPILE_ASSERT(expr, msg) \
+  typedef CompileAssert<(bool(expr))> msg[bool(expr) ? 1 : -1]
+
+COMPILE_ASSERT(SK_OFFSETOF(RECT, left) == SK_OFFSETOF(SkIRect, fLeft), o1);
+COMPILE_ASSERT(SK_OFFSETOF(RECT, top) == SK_OFFSETOF(SkIRect, fTop), o2);
+COMPILE_ASSERT(SK_OFFSETOF(RECT, right) == SK_OFFSETOF(SkIRect, fRight), o3);
+COMPILE_ASSERT(SK_OFFSETOF(RECT, bottom) == SK_OFFSETOF(SkIRect, fBottom), o4);
 COMPILE_ASSERT(sizeof(RECT().left) == sizeof(SkIRect().fLeft), o5);
 COMPILE_ASSERT(sizeof(RECT().top) == sizeof(SkIRect().fTop), o6);
 COMPILE_ASSERT(sizeof(RECT().right) == sizeof(SkIRect().fRight), o7);
 COMPILE_ASSERT(sizeof(RECT().bottom) == sizeof(SkIRect().fBottom), o8);
 COMPILE_ASSERT(sizeof(RECT) == sizeof(SkIRect), o9);
 
 }  // namespace
 
-namespace gfx {
+namespace skia {
 
 POINT SkPointToPOINT(const SkPoint& point) {
   POINT win_point = { SkScalarRound(point.fX), SkScalarRound(point.fY) };
   return win_point;
 }
 
 SkRect RECTToSkRect(const RECT& rect) {
   SkRect sk_rect = { SkIntToScalar(rect.left), SkIntToScalar(rect.top),
                      SkIntToScalar(rect.right), SkIntToScalar(rect.bottom) };
   return sk_rect;
 }
 
-SkShader* CreateGradientShader(int start_point,
-                               int end_point,
-                               SkColor start_color,
-                               SkColor end_color) {
-  SkColor grad_colors[2] = { start_color, end_color};
-  SkPoint grad_points[2];
-  grad_points[0].set(SkIntToScalar(0), SkIntToScalar(start_point));
-  grad_points[1].set(SkIntToScalar(0), SkIntToScalar(end_point));
-
-  return SkGradientShader::CreateLinear(
-      grad_points, grad_colors, NULL, 2, SkShader::kRepeat_TileMode);
-}
-
-
 SkColor COLORREFToSkColor(COLORREF color) {
-#ifndef _MSC_VER
   return SkColorSetRGB(GetRValue(color), GetGValue(color), GetBValue(color));
-#else
-  // ARGB = 0xFF000000 | ((0BGR -> RGB0) >> 8)
-  return 0xFF000000u | (_byteswap_ulong(color) >> 8);
-#endif
 }
 
 COLORREF SkColorToCOLORREF(SkColor color) {
   // Currently, Alpha is always 255 or the color is 0 so there is no need to
-  // demultiply the channels. If this DCHECK() is ever hit, the full
-  // (SkColorGetX(color) * 255 / a) will have to be added in the conversion.
-  DCHECK((0xFF == SkColorGetA(color)) || (0 == color));
-#ifndef _MSC_VER
+  // demultiply the channels. If this is needed, (SkColorGetX(color) * 255 / a)
+  // will have to be added in the conversion.
   return RGB(SkColorGetR(color), SkColorGetG(color), SkColorGetB(color));
-#else
-  // 0BGR = ((ARGB -> BGRA) >> 8)
-  return (_byteswap_ulong(color) >> 8);
-#endif
 }
 
-}  // namespace gfx
+}  // namespace skia