gfx/gl/SurfaceFactory.cpp@97036ab72558 (annotated)
gfx/gl/SurfaceFactory.cpp
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* -*- Mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40; -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #include "SurfaceFactory.h" |
| michael@0 | 7 | |
| michael@0 | 8 | #include "SharedSurface.h" |
| michael@0 | 9 | |
| michael@0 | 10 | namespace mozilla { |
| michael@0 | 11 | namespace gfx { |
| michael@0 | 12 | |
| michael@0 | 13 | SurfaceFactory::~SurfaceFactory() |
| michael@0 | 14 | { |
| michael@0 | 15 | while (!mScraps.empty()) { |
| michael@0 | 16 | SharedSurface* cur = mScraps.front(); |
| michael@0 | 17 | mScraps.pop(); |
| michael@0 | 18 | |
| michael@0 | 19 | delete cur; |
| michael@0 | 20 | } |
| michael@0 | 21 | } |
| michael@0 | 22 | |
| michael@0 | 23 | SharedSurface* |
| michael@0 | 24 | SurfaceFactory::NewSharedSurface(const gfx::IntSize& size) |
| michael@0 | 25 | { |
| michael@0 | 26 | // Attempt to reuse an old surface. |
| michael@0 | 27 | while (!mScraps.empty()) { |
| michael@0 | 28 | SharedSurface* cur = mScraps.front(); |
| michael@0 | 29 | mScraps.pop(); |
| michael@0 | 30 | if (cur->Size() == size) |
| michael@0 | 31 | return cur; |
| michael@0 | 32 | |
| michael@0 | 33 | // Destroy old surfaces of the wrong size. |
| michael@0 | 34 | delete cur; |
| michael@0 | 35 | } |
| michael@0 | 36 | |
| michael@0 | 37 | SharedSurface* ret = CreateShared(size); |
| michael@0 | 38 | |
| michael@0 | 39 | return ret; |
| michael@0 | 40 | } |
| michael@0 | 41 | |
| michael@0 | 42 | // Auto-deletes surfs of the wrong type. |
| michael@0 | 43 | void |
| michael@0 | 44 | SurfaceFactory::Recycle(SharedSurface*& surf) |
| michael@0 | 45 | { |
| michael@0 | 46 | if (!surf) |
| michael@0 | 47 | return; |
| michael@0 | 48 | |
| michael@0 | 49 | if (surf->Type() == mType) { |
| michael@0 | 50 | mScraps.push(surf); |
| michael@0 | 51 | } else { |
| michael@0 | 52 | delete surf; |
| michael@0 | 53 | } |
| michael@0 | 54 | |
| michael@0 | 55 | surf = nullptr; |
| michael@0 | 56 | } |
| michael@0 | 57 | |
| michael@0 | 58 | } /* namespace gfx */ |
| michael@0 | 59 | } /* namespace mozilla */ |
