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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
/* Cairo - a vector graphics library with display and print output
*
* Copyright © 2005 Red Hat, Inc.
* Copyright © 2012 Intel Corporation
*
* This library is free software; you can redistribute it and/or
* modify it either under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation
* (the "LGPL") or, at your option, under the terms of the Mozilla
* Public License Version 1.1 (the "MPL"). If you do not alter this
* notice, a recipient may use your version of this file under either
* the MPL or the LGPL.
*
* You should have received a copy of the LGPL along with this library
* in the file COPYING-LGPL-2.1; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
* You should have received a copy of the MPL along with this library
* in the file COPYING-MPL-1.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
* OF ANY KIND, either express or implied. See the LGPL or the MPL for
* the specific language governing rights and limitations.
*
* The Original Code is the cairo graphics library.
*
* The Initial Developer of the Original Code is Red Hat, Inc.
*
* Contributor(s):
* Owen Taylor <otaylor@redhat.com>
* Stuart Parmenter <stuart@mozilla.com>
* Vladimir Vukicevic <vladimir@pobox.com>
*/
#define WIN32_LEAN_AND_MEAN
/* We require Windows 2000 features such as ETO_PDY */
#if !defined(WINVER) || (WINVER < 0x0500)
# define WINVER 0x0500
#endif
#if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0500)
# define _WIN32_WINNT 0x0500
#endif
#include "cairoint.h"
#include "cairo-atomic-private.h"
#include "cairo-device-private.h"
#include "cairo-win32-private.h"
#include <wchar.h>
#include <windows.h>
static cairo_device_t *__cairo_win32_device;
static cairo_status_t
_cairo_win32_device_flush (void *device)
{
GdiFlush ();
return CAIRO_STATUS_SUCCESS;
}
static void
_cairo_win32_device_finish (void *device)
{
}
static void
_cairo_win32_device_destroy (void *device)
{
free (device);
}
static const cairo_device_backend_t _cairo_win32_device_backend = {
CAIRO_DEVICE_TYPE_WIN32,
NULL, NULL, /* lock, unlock */
_cairo_win32_device_flush,
_cairo_win32_device_finish,
_cairo_win32_device_destroy,
};
#if 0
D2D1_RENDER_TARGET_PROPERTIES props = D2D1::RenderTargetProperties(D2D1_RENDER_TARGET_TYPE_DEFAULT,
D2D1::PixelFormat(
DXGI_FORMAT_B8G8R8A8_UNORM,
D2D1_ALPHA_MODE_IGNORE),
0,
0,
D2D1_RENDER_TARGET_USAGE_NONE,
D2D1_FEATURE_LEVEL_DEFAULT
);
hr = m_pD2DFactory->CreateDCRenderTarget(&props, &device->d2d);
#endif
static cairo_bool_t is_win98 (void)
{
OSVERSIONINFO os;
os.dwOSVersionInfoSize = sizeof (os);
GetVersionEx (&os);
return (VER_PLATFORM_WIN32_WINDOWS == os.dwPlatformId &&
os.dwMajorVersion == 4 &&
os.dwMinorVersion == 10);
}
static void *
_cairo_win32_device_get_alpha_blend (cairo_win32_device_t *device)
{
void *func = NULL;
if (is_win98 ())
return NULL;
device->msimg32_dll = LoadLibraryW (L"msimg32");
if (device->msimg32_dll)
func = GetProcAddress (device->msimg32_dll, "AlphaBlend");
return func;
}
cairo_device_t *
_cairo_win32_device_get (void)
{
cairo_win32_device_t *device;
if (__cairo_win32_device)
return cairo_device_reference (__cairo_win32_device);
device = malloc (sizeof (*device));
_cairo_device_init (&device->base, &_cairo_win32_device_backend);
device->compositor = _cairo_win32_gdi_compositor_get ();
device->msimg32_dll = NULL;
device->alpha_blend = _cairo_win32_device_get_alpha_blend (device);
if (_cairo_atomic_ptr_cmpxchg ((void **)&__cairo_win32_device, NULL, device))
return cairo_device_reference(&device->base);
_cairo_win32_device_destroy (device);
return cairo_device_reference (__cairo_win32_device);
}
unsigned
_cairo_win32_flags_for_dc (HDC dc)
{
uint32_t flags = 0;
int cap;
cap = GetDeviceCaps(dc, RASTERCAPS);
if (cap & RC_BITBLT)
flags |= CAIRO_WIN32_SURFACE_CAN_BITBLT;
if (cap & RC_STRETCHBLT)
flags |= CAIRO_WIN32_SURFACE_CAN_STRETCHBLT;
if (cap & RC_STRETCHDIB)
flags |= CAIRO_WIN32_SURFACE_CAN_STRETCHDIB;
if (GetDeviceCaps(dc, TECHNOLOGY) == DT_RASDISPLAY) {
flags |= CAIRO_WIN32_SURFACE_IS_DISPLAY;
/* These will always be possible, but the actual GetDeviceCaps
* calls will return whether they're accelerated or not.
* We may want to use our own (pixman) routines sometimes
* if they're eventually faster, but for now have GDI do
* everything.
*/
#if 0
flags |= CAIRO_WIN32_SURFACE_CAN_BITBLT;
flags |= CAIRO_WIN32_SURFACE_CAN_ALPHABLEND;
flags |= CAIRO_WIN32_SURFACE_CAN_STRETCHBLT;
flags |= CAIRO_WIN32_SURFACE_CAN_STRETCHDIB;
#endif
} else {
cap = GetDeviceCaps(dc, SHADEBLENDCAPS);
if (cap != SB_NONE)
flags |= CAIRO_WIN32_SURFACE_CAN_ALPHABLEND;
}
return flags;
}
|
