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Issue 12842: Move convolver, image_operations, and skia_utils from base/gfx to skia/ext.... (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: '' Created 12 years ago
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Added: svn:mergeinfo
Merged /branches/chrome_webkit_merge_branch/base/gfx/skia_utils.cc:r69-2775
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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "base/gfx/skia_utils.h" 5 #include "skia/ext/skia_utils_win.h"
6 6
7 #include "base/logging.h"
8 #include "SkRect.h" 7 #include "SkRect.h"
9 #include "SkGradientShader.h" 8 #include "SkGradientShader.h"
10 9
11 namespace { 10 namespace skia {
12
13 COMPILE_ASSERT(offsetof(RECT, left) == offsetof(SkIRect, fLeft), o1);
14 COMPILE_ASSERT(offsetof(RECT, top) == offsetof(SkIRect, fTop), o2);
15 COMPILE_ASSERT(offsetof(RECT, right) == offsetof(SkIRect, fRight), o3);
16 COMPILE_ASSERT(offsetof(RECT, bottom) == offsetof(SkIRect, fBottom), o4);
17 COMPILE_ASSERT(sizeof(RECT().left) == sizeof(SkIRect().fLeft), o5);
18 COMPILE_ASSERT(sizeof(RECT().top) == sizeof(SkIRect().fTop), o6);
19 COMPILE_ASSERT(sizeof(RECT().right) == sizeof(SkIRect().fRight), o7);
20 COMPILE_ASSERT(sizeof(RECT().bottom) == sizeof(SkIRect().fBottom), o8);
21 COMPILE_ASSERT(sizeof(RECT) == sizeof(SkIRect), o9);
22
23 } // namespace
24
25 namespace gfx {
26
27 POINT SkPointToPOINT(const SkPoint& point) {
28 POINT win_point = { SkScalarRound(point.fX), SkScalarRound(point.fY) };
29 return win_point;
30 }
31
32 SkRect RECTToSkRect(const RECT& rect) {
33 SkRect sk_rect = { SkIntToScalar(rect.left), SkIntToScalar(rect.top),
34 SkIntToScalar(rect.right), SkIntToScalar(rect.bottom) };
35 return sk_rect;
36 }
37 11
38 SkShader* CreateGradientShader(int start_point, 12 SkShader* CreateGradientShader(int start_point,
39 int end_point, 13 int end_point,
40 SkColor start_color, 14 SkColor start_color,
41 SkColor end_color) { 15 SkColor end_color) {
42 SkColor grad_colors[2] = { start_color, end_color}; 16 SkColor grad_colors[2] = { start_color, end_color};
43 SkPoint grad_points[2]; 17 SkPoint grad_points[2];
44 grad_points[0].set(SkIntToScalar(0), SkIntToScalar(start_point)); 18 grad_points[0].set(SkIntToScalar(0), SkIntToScalar(start_point));
45 grad_points[1].set(SkIntToScalar(0), SkIntToScalar(end_point)); 19 grad_points[1].set(SkIntToScalar(0), SkIntToScalar(end_point));
46 20
47 return SkGradientShader::CreateLinear( 21 return SkGradientShader::CreateLinear(
48 grad_points, grad_colors, NULL, 2, SkShader::kRepeat_TileMode); 22 grad_points, grad_colors, NULL, 2, SkShader::kRepeat_TileMode);
49 } 23 }
50 24
25 } // namespace skia
51 26
52 SkColor COLORREFToSkColor(COLORREF color) {
53 #ifndef _MSC_VER
54 return SkColorSetRGB(GetRValue(color), GetGValue(color), GetBValue(color));
55 #else
56 // ARGB = 0xFF000000 | ((0BGR -> RGB0) >> 8)
57 return 0xFF000000u | (_byteswap_ulong(color) >> 8);
58 #endif
59 }
60
61 COLORREF SkColorToCOLORREF(SkColor color) {
62 // Currently, Alpha is always 255 or the color is 0 so there is no need to
63 // demultiply the channels. If this DCHECK() is ever hit, the full
64 // (SkColorGetX(color) * 255 / a) will have to be added in the conversion.
65 DCHECK((0xFF == SkColorGetA(color)) || (0 == color));
66 #ifndef _MSC_VER
67 return RGB(SkColorGetR(color), SkColorGetG(color), SkColorGetB(color));
68 #else
69 // 0BGR = ((ARGB -> BGRA) >> 8)
70 return (_byteswap_ulong(color) >> 8);
71 #endif
72 }
73
74 } // namespace gfx
75
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