1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
// 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 "skia/ext/skia_utils_win.h"
#include <stddef.h>
#include <windows.h>
#include "third_party/skia/include/core/SkRect.h"
#include "third_party/skia/include/core/SkTypes.h"
#include "third_party/skia/include/effects/SkGradientShader.h"
namespace {
static_assert(offsetof(RECT, left) == offsetof(SkIRect, fLeft), "o1");
static_assert(offsetof(RECT, top) == offsetof(SkIRect, fTop), "o2");
static_assert(offsetof(RECT, right) == offsetof(SkIRect, fRight), "o3");
static_assert(offsetof(RECT, bottom) == offsetof(SkIRect, fBottom), "o4");
static_assert(sizeof(RECT().left) == sizeof(SkIRect().fLeft), "o5");
static_assert(sizeof(RECT().top) == sizeof(SkIRect().fTop), "o6");
static_assert(sizeof(RECT().right) == sizeof(SkIRect().fRight), "o7");
static_assert(sizeof(RECT().bottom) == sizeof(SkIRect().fBottom), "o8");
static_assert(sizeof(RECT) == sizeof(SkIRect), "o9");
} // namespace
namespace skia {
POINT SkPointToPOINT(const SkPoint& point) {
POINT win_point = {
SkScalarRoundToInt(point.fX), SkScalarRoundToInt(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;
}
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) {
#ifndef _MSC_VER
return RGB(SkColorGetR(color), SkColorGetG(color), SkColorGetB(color));
#else
// 0BGR = ((ARGB -> BGRA) >> 8)
return (_byteswap_ulong(color) >> 8);
#endif
}
void InitializeDC(HDC context) {
// Enables world transformation.
// If the GM_ADVANCED graphics mode is set, GDI always draws arcs in the
// counterclockwise direction in logical space. This is equivalent to the
// statement that, in the GM_ADVANCED graphics mode, both arc control points
// and arcs themselves fully respect the device context's world-to-device
// transformation.
BOOL res = SetGraphicsMode(context, GM_ADVANCED);
SkASSERT(res != 0);
// Enables dithering.
res = SetStretchBltMode(context, HALFTONE);
SkASSERT(res != 0);
// As per SetStretchBltMode() documentation, SetBrushOrgEx() must be called
// right after.
res = SetBrushOrgEx(context, 0, 0, NULL);
SkASSERT(res != 0);
// Sets up default orientation.
res = SetArcDirection(context, AD_CLOCKWISE);
SkASSERT(res != 0);
// Sets up default colors.
res = SetBkColor(context, RGB(255, 255, 255));
SkASSERT(res != CLR_INVALID);
res = SetTextColor(context, RGB(0, 0, 0));
SkASSERT(res != CLR_INVALID);
res = SetDCBrushColor(context, RGB(255, 255, 255));
SkASSERT(res != CLR_INVALID);
res = SetDCPenColor(context, RGB(0, 0, 0));
SkASSERT(res != CLR_INVALID);
// Sets up default transparency.
res = SetBkMode(context, OPAQUE);
SkASSERT(res != 0);
res = SetROP2(context, R2_COPYPEN);
SkASSERT(res != 0);
}
} // namespace skia
|
