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
|
/*
* Copyright (C) 2007, 2008, 2009, 2010 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 COMPUTER, 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 COMPUTER, 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.
*/
#ifndef HTMLVideoElement_h
#define HTMLVideoElement_h
#include "core/CoreExport.h"
#include "core/html/HTMLImageLoader.h"
#include "core/html/HTMLMediaElement.h"
#include "core/html/canvas/CanvasImageSource.h"
#include "core/imagebitmap/ImageBitmapSource.h"
#include "third_party/khronos/GLES2/gl2.h"
class SkPaint;
namespace gpu {
namespace gles2 {
class GLES2Interface;
}
}
namespace blink {
class ExceptionState;
class ImageBitmapOptions;
class CORE_EXPORT HTMLVideoElement final : public HTMLMediaElement,
public CanvasImageSource,
public ImageBitmapSource {
DEFINE_WRAPPERTYPEINFO();
public:
static HTMLVideoElement* create(Document&);
DECLARE_VIRTUAL_TRACE();
unsigned videoWidth() const;
unsigned videoHeight() const;
// Fullscreen
void webkitEnterFullscreen();
void webkitExitFullscreen();
bool webkitSupportsFullscreen();
bool webkitDisplayingFullscreen();
bool usesOverlayFullscreenVideo() const override;
// Statistics
unsigned webkitDecodedFrameCount() const;
unsigned webkitDroppedFrameCount() const;
// Used by canvas to gain raw pixel access
void paintCurrentFrame(SkCanvas*, const IntRect&, const SkPaint*) const;
// Used by WebGL to do GPU-GPU textures copy if possible.
// The caller is responsible for allocating the destination texture.
bool copyVideoTextureToPlatformTexture(gpu::gles2::GLES2Interface*,
GLuint texture,
bool premultiplyAlpha,
bool flipY);
// Used by WebGL to do CPU-GPU texture upload if possible.
bool texImageImpl(WebMediaPlayer::TexImageFunctionID,
GLenum target,
gpu::gles2::GLES2Interface*,
GLint level,
GLint internalformat,
GLenum format,
GLenum type,
GLint xoffset,
GLint yoffset,
GLint zoffset,
bool flipY,
bool premultiplyAlpha);
bool shouldDisplayPosterImage() const { return getDisplayMode() == Poster; }
bool hasAvailableVideoFrame() const;
KURL posterImageURL() const override;
// CanvasImageSource implementation
PassRefPtr<Image> getSourceImageForCanvas(SourceImageStatus*,
AccelerationHint,
SnapshotReason,
const FloatSize&) const override;
bool isVideoElement() const override { return true; }
bool wouldTaintOrigin(SecurityOrigin*) const override;
FloatSize elementSize(const FloatSize&) const override;
const KURL& sourceURL() const override { return currentSrc(); }
bool isHTMLVideoElement() const override { return true; }
int sourceWidth() override { return videoWidth(); }
int sourceHeight() override { return videoHeight(); }
// Video elements currently always go through RAM when used as a canvas image
// source.
bool isAccelerated() const override { return false; }
// ImageBitmapSource implementation
IntSize bitmapSourceSize() const override;
ScriptPromise createImageBitmap(ScriptState*,
EventTarget&,
Optional<IntRect> cropRect,
const ImageBitmapOptions&,
ExceptionState&) override;
private:
HTMLVideoElement(Document&);
bool layoutObjectIsNeeded(const ComputedStyle&) override;
LayoutObject* createLayoutObject(const ComputedStyle&) override;
void attachLayoutTree(const AttachContext& = AttachContext()) override;
void parseAttribute(const AttributeModificationParams&) override;
bool isPresentationAttribute(const QualifiedName&) const override;
void collectStyleForPresentationAttribute(const QualifiedName&,
const AtomicString&,
MutableStylePropertySet*) override;
bool isURLAttribute(const Attribute&) const override;
const AtomicString imageSourceURL() const override;
void updateDisplayState() override;
void didMoveToNewDocument(Document& oldDocument) override;
void setDisplayMode(DisplayMode) override;
Member<HTMLImageLoader> m_imageLoader;
AtomicString m_defaultPosterURL;
};
} // namespace blink
#endif // HTMLVideoElement_h
|
