gfx/layers/client/TextureClientPool.h@129ffea94266 (annotated)
gfx/layers/client/TextureClientPool.h
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- |
| 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 | #ifndef MOZILLA_GFX_TEXTURECLIENTPOOL_H |
| michael@0 | 7 | #define MOZILLA_GFX_TEXTURECLIENTPOOL_H |
| michael@0 | 8 | |
| michael@0 | 9 | #include "mozilla/gfx/Types.h" |
| michael@0 | 10 | #include "mozilla/gfx/Point.h" |
| michael@0 | 11 | #include "mozilla/RefPtr.h" |
| michael@0 | 12 | #include "TextureClient.h" |
| michael@0 | 13 | #include "nsITimer.h" |
| michael@0 | 14 | #include <stack> |
| michael@0 | 15 | |
| michael@0 | 16 | namespace mozilla { |
| michael@0 | 17 | namespace layers { |
| michael@0 | 18 | |
| michael@0 | 19 | class ISurfaceAllocator; |
| michael@0 | 20 | |
| michael@0 | 21 | class TextureClientPool MOZ_FINAL |
| michael@0 | 22 | { |
| michael@0 | 23 | ~TextureClientPool(); |
| michael@0 | 24 | |
| michael@0 | 25 | public: |
| michael@0 | 26 | NS_INLINE_DECL_REFCOUNTING(TextureClientPool) |
| michael@0 | 27 | |
| michael@0 | 28 | TextureClientPool(gfx::SurfaceFormat aFormat, gfx::IntSize aSize, |
| michael@0 | 29 | ISurfaceAllocator *aAllocator); |
| michael@0 | 30 | |
| michael@0 | 31 | /** |
| michael@0 | 32 | * Gets an allocated TextureClient of size and format that are determined |
| michael@0 | 33 | * by the initialisation parameters given to the pool. This will either be |
| michael@0 | 34 | * a cached client that was returned to the pool, or a newly allocated |
| michael@0 | 35 | * client if one isn't available. |
| michael@0 | 36 | * |
| michael@0 | 37 | * All clients retrieved by this method should be returned using the return |
| michael@0 | 38 | * functions, or reported lost so that the pool can manage its size correctly. |
| michael@0 | 39 | */ |
| michael@0 | 40 | TemporaryRef<TextureClient> GetTextureClient(); |
| michael@0 | 41 | |
| michael@0 | 42 | /** |
| michael@0 | 43 | * Return a TextureClient that is no longer being used and is ready for |
| michael@0 | 44 | * immediate re-use or destruction. |
| michael@0 | 45 | */ |
| michael@0 | 46 | void ReturnTextureClient(TextureClient *aClient); |
| michael@0 | 47 | |
| michael@0 | 48 | /** |
| michael@0 | 49 | * Return a TextureClient that is not yet ready to be reused, but will be |
| michael@0 | 50 | * imminently. |
| michael@0 | 51 | */ |
| michael@0 | 52 | void ReturnTextureClientDeferred(TextureClient *aClient); |
| michael@0 | 53 | |
| michael@0 | 54 | /** |
| michael@0 | 55 | * Attempt to shrink the pool so that there are no more than |
| michael@0 | 56 | * sMaxTextureClients clients outstanding. |
| michael@0 | 57 | */ |
| michael@0 | 58 | void ShrinkToMaximumSize(); |
| michael@0 | 59 | |
| michael@0 | 60 | /** |
| michael@0 | 61 | * Attempt to shrink the pool so that there are no more than sMinCacheSize |
| michael@0 | 62 | * unused clients. |
| michael@0 | 63 | */ |
| michael@0 | 64 | void ShrinkToMinimumSize(); |
| michael@0 | 65 | |
| michael@0 | 66 | /** |
| michael@0 | 67 | * Return any clients to the pool that were previously returned in |
| michael@0 | 68 | * ReturnTextureClientDeferred. |
| michael@0 | 69 | */ |
| michael@0 | 70 | void ReturnDeferredClients(); |
| michael@0 | 71 | |
| michael@0 | 72 | /** |
| michael@0 | 73 | * Report that a client retrieved via GetTextureClient() has become |
| michael@0 | 74 | * unusable, so that it will no longer be tracked. |
| michael@0 | 75 | */ |
| michael@0 | 76 | void ReportClientLost() { mOutstandingClients--; } |
| michael@0 | 77 | |
| michael@0 | 78 | /** |
| michael@0 | 79 | * Calling this will cause the pool to attempt to relinquish any unused |
| michael@0 | 80 | * clients. |
| michael@0 | 81 | */ |
| michael@0 | 82 | void Clear(); |
| michael@0 | 83 | |
| michael@0 | 84 | gfx::SurfaceFormat GetFormat() { return mFormat; } |
| michael@0 | 85 | |
| michael@0 | 86 | private: |
| michael@0 | 87 | // The time in milliseconds before the pool will be shrunk to the minimum |
| michael@0 | 88 | // size after returning a client. |
| michael@0 | 89 | static const uint32_t sShrinkTimeout = 1000; |
| michael@0 | 90 | |
| michael@0 | 91 | // The minimum size of the pool (the number of tiles that will be kept after |
| michael@0 | 92 | // shrinking). |
| michael@0 | 93 | static const uint32_t sMinCacheSize = 0; |
| michael@0 | 94 | |
| michael@0 | 95 | // The maximum number of texture clients managed by this pool that we want |
| michael@0 | 96 | // to remain active. |
| michael@0 | 97 | static const uint32_t sMaxTextureClients = 50; |
| michael@0 | 98 | |
| michael@0 | 99 | gfx::SurfaceFormat mFormat; |
| michael@0 | 100 | gfx::IntSize mSize; |
| michael@0 | 101 | |
| michael@0 | 102 | uint32_t mOutstandingClients; |
| michael@0 | 103 | |
| michael@0 | 104 | // On b2g gonk, std::queue might be a better choice. |
| michael@0 | 105 | // On ICS, fence wait happens implicitly before drawing. |
| michael@0 | 106 | // Since JB, fence wait happens explicitly when fetching a client from the pool. |
| michael@0 | 107 | std::stack<RefPtr<TextureClient> > mTextureClients; |
| michael@0 | 108 | std::stack<RefPtr<TextureClient> > mTextureClientsDeferred; |
| michael@0 | 109 | nsRefPtr<nsITimer> mTimer; |
| michael@0 | 110 | RefPtr<ISurfaceAllocator> mSurfaceAllocator; |
| michael@0 | 111 | }; |
| michael@0 | 112 | |
| michael@0 | 113 | } |
| michael@0 | 114 | } |
| michael@0 | 115 | #endif /* MOZILLA_GFX_TEXTURECLIENTPOOL_H */ |
