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
|
/* -*- 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 .
*/
#ifndef IOS
#include <headless/svpbmp.hxx>
#include <headless/svpinst.hxx>
#include <headless/svpvd.hxx>
#include <headless/svpgdi.hxx>
#include <basegfx/vector/b2ivector.hxx>
#include <comphelper/lok.hxx>
#include <cairo.h>
using namespace basegfx;
SvpSalVirtualDevice::SvpSalVirtualDevice(cairo_surface_t* pRefSurface, cairo_surface_t* pPreExistingTarget)
: m_pRefSurface(pRefSurface)
, m_pSurface(pPreExistingTarget)
, m_bOwnsSurface(!pPreExistingTarget)
{
cairo_surface_reference(m_pRefSurface);
}
SvpSalVirtualDevice::~SvpSalVirtualDevice()
{
if (m_bOwnsSurface)
cairo_surface_destroy(m_pSurface);
cairo_surface_destroy(m_pRefSurface);
}
SvpSalGraphics* SvpSalVirtualDevice::AddGraphics(SvpSalGraphics* pGraphics)
{
pGraphics->setSurface(m_pSurface, m_aFrameSize);
m_aGraphics.push_back(pGraphics);
return pGraphics;
}
SalGraphics* SvpSalVirtualDevice::AcquireGraphics()
{
return AddGraphics(new SvpSalGraphics());
}
void SvpSalVirtualDevice::ReleaseGraphics( SalGraphics* pGraphics )
{
std::erase(m_aGraphics, dynamic_cast<SvpSalGraphics*>(pGraphics));
delete pGraphics;
}
bool SvpSalVirtualDevice::SetSize( tools::Long nNewDX, tools::Long nNewDY )
{
return SetSizeUsingBuffer(nNewDX, nNewDY, nullptr);
}
bool SvpSalVirtualDevice::CreateSurface(tools::Long nNewDX, tools::Long nNewDY, sal_uInt8 *const pBuffer)
{
if (m_pSurface)
{
cairo_surface_destroy(m_pSurface);
}
if (pBuffer)
{
// The buffer should only be set by VirtualDevice::SetOutputSizePixelScaleOffsetAndLOKBuffer()
// when used to draw a tile for LOK. It cannot be used for something else, because otherwise
// this would need a way to detect whether this is a tiled paint that needs LOK handling
// or whether it's that something else that just might happen to be called with LOK active.
assert(comphelper::LibreOfficeKit::isActive());
// Force scaling of the painting
double fScale = comphelper::LibreOfficeKit::getDPIScale();
m_pSurface = cairo_image_surface_create_for_data(pBuffer, CAIRO_FORMAT_ARGB32,
nNewDX, nNewDY, cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, nNewDX));
dl_cairo_surface_set_device_scale(m_pSurface, fScale, fScale);
}
else if(nNewDX <= 32 && nNewDY <= 32)
{
double fXScale, fYScale;
dl_cairo_surface_get_device_scale(m_pRefSurface, &fXScale, &fYScale);
nNewDX *= fXScale;
nNewDY *= fYScale;
// Force image-based surface if small. Small VirtualDevice instances are often used for small
// temporary bitmaps that will eventually have GetBitmap() called on them, which would cause
// X Server roundtrip with Xlib-based surface, which may be way more costly than doing the drawing
// in software (which should be fairly cheap for small surfaces anyway).
m_pSurface = cairo_surface_create_similar_image(m_pRefSurface, CAIRO_FORMAT_ARGB32, nNewDX, nNewDY);
dl_cairo_surface_set_device_scale(m_pSurface, fXScale, fYScale);
}
else
{
m_pSurface = cairo_surface_create_similar(m_pRefSurface, CAIRO_CONTENT_COLOR_ALPHA, nNewDX, nNewDY);
// Device scale is inherited in this case.
}
SAL_WARN_IF(cairo_surface_status(m_pSurface) != CAIRO_STATUS_SUCCESS, "vcl", "surface of size " << nNewDX << " by " << nNewDY << " creation failed with status of: " << cairo_status_to_string(cairo_surface_status(m_pSurface)));
return cairo_surface_status(m_pSurface) == CAIRO_STATUS_SUCCESS;
}
bool SvpSalVirtualDevice::SetSizeUsingBuffer( tools::Long nNewDX, tools::Long nNewDY,
sal_uInt8 *const pBuffer)
{
bool bSuccess = true;
if (nNewDX == 0)
nNewDX = 1;
if (nNewDY == 0)
nNewDY = 1;
if (!m_pSurface || m_aFrameSize.getX() != nNewDX ||
m_aFrameSize.getY() != nNewDY)
{
m_aFrameSize = basegfx::B2IVector(nNewDX, nNewDY);
if (m_bOwnsSurface)
bSuccess = CreateSurface(nNewDX, nNewDY, pBuffer);
assert(m_pSurface);
// update device in existing graphics
for (auto const& graphic : m_aGraphics)
graphic->setSurface(m_pSurface, m_aFrameSize);
}
return bSuccess;
}
tools::Long SvpSalVirtualDevice::GetWidth() const
{
return m_pSurface ? m_aFrameSize.getX() : 0;
}
tools::Long SvpSalVirtualDevice::GetHeight() const
{
return m_pSurface ? m_aFrameSize.getY() : 0;
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
