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
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
*/
#include <X11/Xlib.h>
#include <X11/extensions/Xrender.h>
#include "cairo_xlib_cairo.hxx"
#include <vcl/sysdata.hxx>
#include <vcl/bitmap.hxx>
#include <vcl/virdev.hxx>
#include <sal/log.hxx>
#include <cairo-xlib.h>
#include <cairo-xlib-xrender.h>
namespace
{
Pixmap limitXCreatePixmap(Display *display, Drawable d, unsigned int width, unsigned int height, unsigned int depth)
{
// The X protocol request CreatePixmap puts an upper bound
// of 16 bit to the size. And in practice some drivers
// fall over with values close to the max.
// see, e.g. moz#424333, fdo#48961, rhbz#1086714
// we've a duplicate of this in vcl :-(
if (width > SAL_MAX_INT16-10 || height > SAL_MAX_INT16-10)
{
SAL_WARN("canvas", "overlarge pixmap: " << width << " x " << height);
return None;
}
return XCreatePixmap(display, d, width, height, depth);
}
}
namespace cairo
{
X11SysData::X11SysData() :
pDisplay(nullptr),
hDrawable(0),
pVisual(nullptr),
nScreen(0),
pRenderFormat(nullptr)
{}
X11SysData::X11SysData( const SystemGraphicsData& pSysDat ) :
pDisplay(pSysDat.pDisplay),
hDrawable(pSysDat.hDrawable),
pVisual(pSysDat.pVisual),
nScreen(pSysDat.nScreen),
pRenderFormat(pSysDat.pXRenderFormat)
{}
X11SysData::X11SysData( const SystemEnvData& pSysDat ) :
pDisplay(pSysDat.pDisplay),
hDrawable(pSysDat.aWindow),
pVisual(pSysDat.pVisual),
nScreen(pSysDat.nScreen),
pRenderFormat(nullptr)
{}
X11Pixmap::~X11Pixmap()
{
if( mpDisplay && mhDrawable )
XFreePixmap( static_cast<Display*>(mpDisplay), mhDrawable );
}
/**
* Surface::Surface: Create Canvas surface with existing data
* @param pSysData Platform native system environment data (struct SystemEnvData in vcl/inc/sysdata.hxx)
* @param pSurface Cairo surface
*
* pSysData contains the platform native Drawable reference
* This constructor only stores data, it does no processing.
* It is used by e.g. Surface::getSimilar()
*
* Set the mpSurface as pSurface
**/
X11Surface::X11Surface( const X11SysData& rSysData,
const X11PixmapSharedPtr& rPixmap,
const CairoSurfaceSharedPtr& pSurface ) :
maSysData(rSysData),
mpPixmap(rPixmap),
mpSurface(pSurface)
{}
/**
* Surface::Surface: Create generic Canvas surface using given Cairo Surface
*
* @param pSurface Cairo Surface
*
* This constructor only stores data, it does no processing.
* It is used with e.g. cairo_image_surface_create_for_data()
* Unlike other constructors, mpSysData is set to NULL
*
* Set the mpSurface as pSurface
**/
X11Surface::X11Surface( const CairoSurfaceSharedPtr& pSurface ) :
maSysData(),
mpPixmap(),
mpSurface(pSurface)
{}
/**
* Surface::Surface: Create Canvas surface from Window reference.
* @param pSysData Platform native system environment data (struct SystemEnvData in vcl/inc/sysdata.hxx)
* @param x horizontal location of the new surface
* @param y vertical location of the new surface
* @param width width of the new surface
* @param height height of the new surface
*
* pSysData contains the platform native Window reference.
*
* pSysData is used to create a surface on the Window
*
* Set the mpSurface to the new surface or NULL
**/
X11Surface::X11Surface( const X11SysData& rSysData, int x, int y, int width, int height ) :
maSysData(rSysData),
mpPixmap(),
mpSurface(
cairo_xlib_surface_create( static_cast<Display*>(rSysData.pDisplay),
rSysData.hDrawable,
static_cast<Visual*>(rSysData.pVisual),
width + x, height + y ),
&cairo_surface_destroy)
{
cairo_surface_set_device_offset(mpSurface.get(), x, y );
}
/**
* Surface::Surface: Create platform native Canvas surface from BitmapSystemData
* @param pSysData Platform native system environment data (struct SystemEnvData in vcl/inc/sysdata.hxx)
* @param pBmpData Platform native image data (struct BitmapSystemData in vcl/inc/bitmap.hxx)
* @param width width of the new surface
* @param height height of the new surface
*
* The pBmpData provides the imagedata that the created surface should contain.
*
* Set the mpSurface to the new surface or NULL
**/
X11Surface::X11Surface( const X11SysData& rSysData,
const BitmapSystemData& rData ) :
maSysData( rSysData ),
mpPixmap(),
mpSurface(
cairo_xlib_surface_create( static_cast<Display*>(rSysData.pDisplay),
reinterpret_cast<Drawable>(rData.aPixmap),
static_cast<Visual*>(rSysData.pVisual),
rData.mnWidth, rData.mnHeight ),
&cairo_surface_destroy)
{
}
/**
* Surface::getCairo: Create Cairo (drawing object) for the Canvas surface
*
* @return new Cairo or NULL
**/
CairoSharedPtr X11Surface::getCairo() const<--- The function 'getCairo' is never used.
{
return CairoSharedPtr( cairo_create(mpSurface.get()),
&cairo_destroy );
}
/**
* Surface::getSimilar: Create new similar Canvas surface
* @param cairo_content_type format of the new surface (cairo_content_t from cairo/src/cairo.h)
* @param width width of the new surface
* @param height height of the new surface
*
* Creates a new Canvas surface. This normally creates platform native surface, even though
* generic function is used.
*
* Cairo surface from cairo_content_type (cairo_content_t)
*
* @return new surface or NULL
**/
SurfaceSharedPtr X11Surface::getSimilar(int cairo_content_type, int width, int height ) const<--- The function 'getSimilar' is never used.
{
Pixmap hPixmap;
if( maSysData.pDisplay && maSysData.hDrawable )
{
XRenderPictFormat* pFormat;
int nFormat;
switch (cairo_content_type)
{
case CAIRO_CONTENT_ALPHA:
nFormat = PictStandardA8;
break;
case CAIRO_CONTENT_COLOR:
nFormat = PictStandardRGB24;
break;
case CAIRO_CONTENT_COLOR_ALPHA:
default:
nFormat = PictStandardARGB32;
break;
}
pFormat = XRenderFindStandardFormat( static_cast<Display*>(maSysData.pDisplay), nFormat );
hPixmap = limitXCreatePixmap( static_cast<Display*>(maSysData.pDisplay), maSysData.hDrawable,
width > 0 ? width : 1, height > 0 ? height : 1,
pFormat->depth );
X11SysData aSysData(maSysData);
aSysData.pRenderFormat = pFormat;
return SurfaceSharedPtr(
new X11Surface( aSysData,
std::make_shared<X11Pixmap>(hPixmap, maSysData.pDisplay),
CairoSurfaceSharedPtr(
cairo_xlib_surface_create_with_xrender_format(
static_cast<Display*>(maSysData.pDisplay),
hPixmap,
ScreenOfDisplay(static_cast<Display *>(maSysData.pDisplay), maSysData.nScreen),
pFormat, width, height ),
&cairo_surface_destroy) ));
}
else
return SurfaceSharedPtr(
new X11Surface( maSysData,
X11PixmapSharedPtr(),
CairoSurfaceSharedPtr(
cairo_surface_create_similar( mpSurface.get(),
static_cast<cairo_content_t>(cairo_content_type), width, height ),
&cairo_surface_destroy )));
}
VclPtr<VirtualDevice> X11Surface::createVirtualDevice() const
{
SystemGraphicsData aSystemGraphicsData;
aSystemGraphicsData.nSize = sizeof(SystemGraphicsData);
aSystemGraphicsData.hDrawable = mpPixmap ? mpPixmap->mhDrawable : maSysData.hDrawable;
aSystemGraphicsData.pXRenderFormat = maSysData.pRenderFormat;
int width = cairo_xlib_surface_get_width(mpSurface.get());
int height = cairo_xlib_surface_get_height(mpSurface.get());
return VclPtr<VirtualDevice>::Create(aSystemGraphicsData,
Size(width, height),
getFormat());
}
/**
* Surface::Resize: Resizes the Canvas surface.
* @param width new width of the surface
* @param height new height of the surface
*
* Only used on X11.
*
* @return The new surface or NULL
**/
bool X11Surface::Resize(int width, int height)
{
cairo_xlib_surface_set_size(mpSurface.get(), width, height);
return true;
}
void X11Surface::flush() const
{
XSync( static_cast<Display*>(maSysData.pDisplay), false );
}
/**
* Surface::getDepth: Get the color depth of the Canvas surface.
*
* @return color depth
**/
int X11Surface::getDepth() const
{
if (maSysData.pRenderFormat)
return static_cast<XRenderPictFormat*>(maSysData.pRenderFormat)->depth;
return -1;
}
/**
* Surface::getFormat: Get the device format of the Canvas surface.
*
* @return color format
**/
DeviceFormat X11Surface::getFormat() const
{
if (!maSysData.pRenderFormat)
return DeviceFormat::DEFAULT;
switch (static_cast<XRenderPictFormat*>(maSysData.pRenderFormat)->depth)
{
case 1:
return DeviceFormat::BITMASK;
default:
return DeviceFormat::DEFAULT;
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|