| [email protected] | a46f3293 | 2012-12-07 21:43:16 | [diff] [blame] | 1 | // Copyright 2012 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef CC_SOFTWARE_OUTPUT_DEVICE_H_ |
| 6 | #define CC_SOFTWARE_OUTPUT_DEVICE_H_ |
| 7 | |
| 8 | #include "third_party/WebKit/Source/Platform/chromium/public/WebImage.h" |
| 9 | #include "ui/gfx/size.h" |
| 10 | |
| 11 | namespace cc { |
| 12 | |
| 13 | // This is a "tear-off" class providing software drawing support to |
| 14 | // OutputSurface, such as to a platform-provided window framebuffer. |
| 15 | class SoftwareOutputDevice { |
| 16 | public: |
| 17 | virtual ~SoftwareOutputDevice() {} |
| 18 | |
| 19 | // Lock the framebuffer and return a pointer to a WebImage referring to its |
| 20 | // pixels. Set forWrite if you intend to change the pixels. Readback |
| 21 | // is supported whether or not forWrite is set. |
| 22 | // TODO(danakj): Switch this from WebImage to a Skia type. |
| 23 | virtual WebKit::WebImage* Lock(bool forWrite) = 0; |
| 24 | virtual void Unlock() = 0; |
| 25 | |
| 26 | virtual void DidChangeViewportSize(gfx::Size) = 0; |
| 27 | }; |
| 28 | |
| 29 | } // namespace cc |
| 30 | |
| 31 | #endif // CC_SOFTWARE_OUTPUT_DEVICE_H_ |
