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
|
/*
* Copyright (c) 2013, Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
* OWNER 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 "platform/graphics/ImageBufferSurface.h"
#include "platform/graphics/GraphicsContext.h"
#include "platform/graphics/ImageBuffer.h"
#include "platform/graphics/StaticBitmapImage.h"
#include "third_party/skia/include/core/SkImage.h"
class SkPicture;
namespace blink {
ImageBufferSurface::ImageBufferSurface(const IntSize& size, OpacityMode opacityMode)
: m_opacityMode(opacityMode)
, m_size(size)
{
setIsHidden(false);
}
ImageBufferSurface::~ImageBufferSurface() { }
PassRefPtr<SkPicture> ImageBufferSurface::getPicture()
{
return nullptr;
}
void ImageBufferSurface::clear()
{
// Clear the background transparent or opaque, as required. It would be nice if this wasn't
// required, but the canvas is currently filled with the magic transparency
// color. Can we have another way to manage this?
if (isValid()) {
if (m_opacityMode == Opaque) {
canvas()->clear(SK_ColorBLACK);
} else {
canvas()->clear(SK_ColorTRANSPARENT);
}
didDraw(FloatRect(FloatPoint(0, 0), FloatSize(size())));
}
}
void ImageBufferSurface::draw(GraphicsContext& context, const FloatRect& destRect, const FloatRect& srcRect, SkXfermode::Mode op)
{
RefPtr<SkImage> snapshot = newImageSnapshot(PreferNoAcceleration);
if (!snapshot)
return;
RefPtr<Image> image = StaticBitmapImage::create(snapshot.release());
context.drawImage(image.get(), destRect, srcRect, op);
}
void ImageBufferSurface::flush()
{
canvas()->flush();
}
bool ImageBufferSurface::writePixels(const SkImageInfo& origInfo, const void* pixels, size_t rowBytes, int x, int y)
{
return canvas()->writePixels(origInfo, pixels, rowBytes, x, y);
}
} // namespace blink
|
