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
|
/*
* Copyright (C) 2018 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "PaintRenderingContext2D.h"
#include "CustomPaintCanvas.h"
#include "DisplayListDrawingContext.h"
#include "DisplayListRecorder.h"
#include "DisplayListReplayer.h"
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_IMPL(PaintRenderingContext2D);
std::unique_ptr<PaintRenderingContext2D> PaintRenderingContext2D::create(CustomPaintCanvas& canvas)
{
return std::unique_ptr<PaintRenderingContext2D>(new PaintRenderingContext2D(canvas));
}
PaintRenderingContext2D::PaintRenderingContext2D(CustomPaintCanvas& canvas)
: CanvasRenderingContext2DBase(canvas, Type::Paint, { }, false)
{
}
PaintRenderingContext2D::~PaintRenderingContext2D() = default;
CustomPaintCanvas& PaintRenderingContext2D::canvas() const
{
return downcast<CustomPaintCanvas>(canvasBase());
}
GraphicsContext* PaintRenderingContext2D::ensureDrawingContext() const
{
if (!m_recordingContext)
m_recordingContext = makeUnique<DisplayList::DrawingContext>(canvasBase().size());
return &m_recordingContext->context();
}
GraphicsContext* PaintRenderingContext2D::existingDrawingContext() const
{
return m_recordingContext ? &m_recordingContext->context() : nullptr;
}
AffineTransform PaintRenderingContext2D::baseTransform() const
{
// The base transform of the display list.
// FIXME: this is actually correct, but the display list will not behave correctly with respect to
// playback. The GraphicsContext should be fixed to start at identity transform, and the
// device transform should be a separate concept that the display list or context2d cannot reset.
return { };
}
void PaintRenderingContext2D::replayDisplayList(GraphicsContext& target) const
{
if (!m_recordingContext)
return;
auto& displayList = m_recordingContext->displayList();
if (displayList.isEmpty())
return;
DisplayList::Replayer replayer(target, displayList);
replayer.replay(FloatRect { { }, canvasBase().size() });
displayList.clear();
}
} // namespace WebCore
|
