1 | /* |
2 | * Copyright (C) 2017 Apple Inc. All rights reserved. |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions |
6 | * are met: |
7 | * 1. Redistributions of source code must retain the above copyright |
8 | * notice, this list of conditions and the following disclaimer. |
9 | * 2. Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * |
13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
14 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
15 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
17 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
18 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
19 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
20 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
21 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
22 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
23 | * THE POSSIBILITY OF SUCH DAMAGE. |
24 | */ |
25 | |
26 | #pragma once |
27 | |
28 | #include "CanvasRenderingContext.h" |
29 | |
30 | #include "ExceptionOr.h" |
31 | #include "ImageBitmapRenderingContextSettings.h" |
32 | #include "ImageBufferData.h" |
33 | #include <memory> |
34 | #include <wtf/RefPtr.h> |
35 | |
36 | namespace WebCore { |
37 | |
38 | class ImageBitmap; |
39 | class ImageBuffer; |
40 | |
41 | class ImageBitmapRenderingContext final : public CanvasRenderingContext { |
42 | WTF_MAKE_ISO_ALLOCATED(ImageBitmapRenderingContext); |
43 | public: |
44 | static std::unique_ptr<ImageBitmapRenderingContext> create(CanvasBase&, ImageBitmapRenderingContextSettings&&); |
45 | |
46 | enum class BitmapMode { |
47 | Valid, |
48 | Blank |
49 | }; |
50 | |
51 | ~ImageBitmapRenderingContext(); |
52 | |
53 | HTMLCanvasElement* canvas() const; |
54 | |
55 | ExceptionOr<void> transferFromImageBitmap(RefPtr<ImageBitmap>); |
56 | |
57 | BitmapMode bitmapMode() { return m_bitmapMode; } |
58 | bool hasAlpha() { return m_settings.alpha; } |
59 | |
60 | private: |
61 | ImageBitmapRenderingContext(CanvasBase&, ImageBitmapRenderingContextSettings&&); |
62 | |
63 | bool isBitmapRenderer() const final { return true; } |
64 | bool isAccelerated() const override; |
65 | |
66 | void setOutputBitmap(RefPtr<ImageBitmap>); |
67 | |
68 | BitmapMode m_bitmapMode { BitmapMode::Blank }; |
69 | ImageBitmapRenderingContextSettings m_settings; |
70 | }; |
71 | |
72 | } |
73 | |
74 | SPECIALIZE_TYPE_TRAITS_CANVASRENDERINGCONTEXT(WebCore::ImageBitmapRenderingContext, isBitmapRenderer()) |
75 | |