The Tor Browser / file comparison
comparison: widget/gonk/Framebuffer.h
widget/gonk/Framebuffer.h
- branch
- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
equal
deleted
inserted
replaced
| -1:000000000000 | 0:4691fb62baf5 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim: set sw=2 ts=8 et ft=cpp : */ | |
| 3 /* Copyright 2012 Mozilla Foundation and Mozilla contributors | |
| 4 * | |
| 5 * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 6 * you may not use this file except in compliance with the License. | |
| 7 * You may obtain a copy of the License at | |
| 8 * | |
| 9 * http://www.apache.org/licenses/LICENSE-2.0 | |
| 10 * | |
| 11 * Unless required by applicable law or agreed to in writing, software | |
| 12 * distributed under the License is distributed on an "AS IS" BASIS, | |
| 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 14 * See the License for the specific language governing permissions and | |
| 15 * limitations under the License. | |
| 16 */ | |
| 17 | |
| 18 class gfxASurface; | |
| 19 class nsIntRegion; | |
| 20 class nsIntSize; | |
| 21 | |
| 22 namespace mozilla { | |
| 23 | |
| 24 namespace Framebuffer { | |
| 25 | |
| 26 // | |
| 27 // The general usage of Framebuffer is | |
| 28 // | |
| 29 // -- in initialization code -- | |
| 30 // Open(); | |
| 31 // | |
| 32 // -- ready to paint next frame -- | |
| 33 // nsRefPtr<gfxASurface> backBuffer = BackBuffer(); | |
| 34 // // ... | |
| 35 // Paint(backBuffer); | |
| 36 // // ... | |
| 37 // Present(); | |
| 38 // | |
| 39 | |
| 40 // Return true if the fbdev was successfully opened. If this fails, | |
| 41 // the result of all further calls is undefined. Open() is idempotent. | |
| 42 bool Open(); | |
| 43 | |
| 44 // After Close(), the result of all further calls is undefined. | |
| 45 // Close() is idempotent, and Open() can be called again after | |
| 46 // Close(). | |
| 47 void Close(); | |
| 48 | |
| 49 // Return true if the fbdev was successfully opened or the size was | |
| 50 // already cached. | |
| 51 bool GetSize(nsIntSize *aScreenSize); | |
| 52 | |
| 53 // Return the buffer to be drawn into, that will be the next frame. | |
| 54 gfxASurface* BackBuffer(); | |
| 55 | |
| 56 // Swap the front buffer for the back buffer. |aUpdated| is the | |
| 57 // region of the back buffer that was repainted. | |
| 58 void Present(const nsIntRegion& aUpdated); | |
| 59 | |
| 60 } // namespace Framebuffer | |
| 61 | |
| 62 } // namespace mozilla |
