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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "ui/surface/transport_dib.h" | 5 #include "ui/surface/transport_dib.h" |
6 | 6 |
7 #include <windows.h> | 7 #include <windows.h> |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 #include <stdint.h> | 9 #include <stdint.h> |
10 | 10 |
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51 // static | 51 // static |
52 TransportDIB* TransportDIB::CreateWithHandle(Handle handle) { | 52 TransportDIB* TransportDIB::CreateWithHandle(Handle handle) { |
53 return new TransportDIB(handle); | 53 return new TransportDIB(handle); |
54 } | 54 } |
55 | 55 |
56 // static | 56 // static |
57 bool TransportDIB::is_valid_handle(Handle dib) { | 57 bool TransportDIB::is_valid_handle(Handle dib) { |
58 return dib.IsValid(); | 58 return dib.IsValid(); |
59 } | 59 } |
60 | 60 |
61 std::unique_ptr<SkCanvas> TransportDIB::GetPlatformCanvas(int w, | 61 SkCanvas* TransportDIB::GetPlatformCanvas(int w, int h, |
62 int h, | 62 bool opaque) { |
63 bool opaque) { | |
64 // This DIB already mapped the file into this process, but PlatformCanvas | 63 // This DIB already mapped the file into this process, but PlatformCanvas |
65 // will map it again. | 64 // will map it again. |
66 DCHECK(!memory()) << "Mapped file twice in the same process."; | 65 DCHECK(!memory()) << "Mapped file twice in the same process."; |
67 | 66 |
68 // We can't check the canvas size before mapping, but it's safe because | 67 // We can't check the canvas size before mapping, but it's safe because |
69 // Windows will fail to map the section if the dimensions of the canvas | 68 // Windows will fail to map the section if the dimensions of the canvas |
70 // are too large. | 69 // are too large. |
71 std::unique_ptr<SkCanvas> canvas = skia::CreatePlatformCanvas( | 70 SkCanvas* canvas = skia::CreatePlatformCanvas( |
72 w, h, opaque, shared_memory_.handle().GetHandle(), | 71 w, h, opaque, shared_memory_.handle().GetHandle(), |
73 skia::RETURN_NULL_ON_FAILURE); | 72 skia::RETURN_NULL_ON_FAILURE); |
74 | 73 |
75 // Calculate the size for the memory region backing the canvas. | 74 // Calculate the size for the memory region backing the canvas. |
76 if (canvas) | 75 if (canvas) |
77 size_ = skia::PlatformCanvasStrideForWidth(w) * h; | 76 size_ = skia::PlatformCanvasStrideForWidth(w) * h; |
78 | 77 |
79 return canvas; | 78 return canvas; |
80 } | 79 } |
81 | 80 |
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92 return false; | 91 return false; |
93 } | 92 } |
94 | 93 |
95 size_ = shared_memory_.mapped_size(); | 94 size_ = shared_memory_.mapped_size(); |
96 return true; | 95 return true; |
97 } | 96 } |
98 | 97 |
99 void* TransportDIB::memory() const { | 98 void* TransportDIB::memory() const { |
100 return shared_memory_.memory(); | 99 return shared_memory_.memory(); |
101 } | 100 } |
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