gfx/gl/SharedSurface.h@6474c204b198 (annotated)
gfx/gl/SharedSurface.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| 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 | /* SharedSurface abstracts an actual surface (can be a GL texture, but |
| michael@0 | 7 | * not necessarily) that handles sharing. |
| michael@0 | 8 | * Its specializations are: |
| michael@0 | 9 | * SharedSurface_Basic (client-side bitmap, does readback) |
| michael@0 | 10 | * SharedSurface_GLTexture |
| michael@0 | 11 | * SharedSurface_EGLImage |
| michael@0 | 12 | * SharedSurface_ANGLEShareHandle |
| michael@0 | 13 | */ |
| michael@0 | 14 | |
| michael@0 | 15 | #ifndef SHARED_SURFACE_H_ |
| michael@0 | 16 | #define SHARED_SURFACE_H_ |
| michael@0 | 17 | |
| michael@0 | 18 | #include <stdint.h> |
| michael@0 | 19 | #include "mozilla/Attributes.h" |
| michael@0 | 20 | #include "GLDefs.h" |
| michael@0 | 21 | #include "mozilla/gfx/Point.h" |
| michael@0 | 22 | #include "SurfaceTypes.h" |
| michael@0 | 23 | |
| michael@0 | 24 | namespace mozilla { |
| michael@0 | 25 | namespace gfx { |
| michael@0 | 26 | |
| michael@0 | 27 | class SurfaceFactory; |
| michael@0 | 28 | |
| michael@0 | 29 | class SharedSurface |
| michael@0 | 30 | { |
| michael@0 | 31 | protected: |
| michael@0 | 32 | const SharedSurfaceType mType; |
| michael@0 | 33 | const APITypeT mAPI; |
| michael@0 | 34 | const AttachmentType mAttachType; |
| michael@0 | 35 | const gfx::IntSize mSize; |
| michael@0 | 36 | const bool mHasAlpha; |
| michael@0 | 37 | bool mIsLocked; |
| michael@0 | 38 | |
| michael@0 | 39 | SharedSurface(SharedSurfaceType type, |
| michael@0 | 40 | APITypeT api, |
| michael@0 | 41 | AttachmentType attachType, |
| michael@0 | 42 | const gfx::IntSize& size, |
| michael@0 | 43 | bool hasAlpha) |
| michael@0 | 44 | : mType(type) |
| michael@0 | 45 | , mAPI(api) |
| michael@0 | 46 | , mAttachType(attachType) |
| michael@0 | 47 | , mSize(size) |
| michael@0 | 48 | , mHasAlpha(hasAlpha) |
| michael@0 | 49 | , mIsLocked(false) |
| michael@0 | 50 | { |
| michael@0 | 51 | } |
| michael@0 | 52 | |
| michael@0 | 53 | public: |
| michael@0 | 54 | virtual ~SharedSurface() { |
| michael@0 | 55 | } |
| michael@0 | 56 | |
| michael@0 | 57 | static void Copy(SharedSurface* src, SharedSurface* dest, |
| michael@0 | 58 | SurfaceFactory* factory); |
| michael@0 | 59 | |
| michael@0 | 60 | // This locks the SharedSurface as the production buffer for the context. |
| michael@0 | 61 | // This is needed by backends which use PBuffers and/or EGLSurfaces. |
| michael@0 | 62 | virtual void LockProd() { |
| michael@0 | 63 | MOZ_ASSERT(!mIsLocked); |
| michael@0 | 64 | LockProdImpl(); |
| michael@0 | 65 | mIsLocked = true; |
| michael@0 | 66 | } |
| michael@0 | 67 | |
| michael@0 | 68 | // Unlocking is harmless if we're already unlocked. |
| michael@0 | 69 | virtual void UnlockProd() { |
| michael@0 | 70 | if (!mIsLocked) |
| michael@0 | 71 | return; |
| michael@0 | 72 | |
| michael@0 | 73 | UnlockProdImpl(); |
| michael@0 | 74 | mIsLocked = false; |
| michael@0 | 75 | } |
| michael@0 | 76 | |
| michael@0 | 77 | virtual void LockProdImpl() = 0; |
| michael@0 | 78 | virtual void UnlockProdImpl() = 0; |
| michael@0 | 79 | |
| michael@0 | 80 | virtual void Fence() = 0; |
| michael@0 | 81 | virtual bool WaitSync() = 0; |
| michael@0 | 82 | |
| michael@0 | 83 | |
| michael@0 | 84 | SharedSurfaceType Type() const { |
| michael@0 | 85 | return mType; |
| michael@0 | 86 | } |
| michael@0 | 87 | |
| michael@0 | 88 | APITypeT APIType() const { |
| michael@0 | 89 | return mAPI; |
| michael@0 | 90 | } |
| michael@0 | 91 | |
| michael@0 | 92 | AttachmentType AttachType() const { |
| michael@0 | 93 | return mAttachType; |
| michael@0 | 94 | } |
| michael@0 | 95 | |
| michael@0 | 96 | const gfx::IntSize& Size() const { |
| michael@0 | 97 | return mSize; |
| michael@0 | 98 | } |
| michael@0 | 99 | |
| michael@0 | 100 | bool HasAlpha() const { |
| michael@0 | 101 | return mHasAlpha; |
| michael@0 | 102 | } |
| michael@0 | 103 | }; |
| michael@0 | 104 | |
| michael@0 | 105 | } /* namespace gfx */ |
| michael@0 | 106 | } /* namespace mozilla */ |
| michael@0 | 107 | |
| michael@0 | 108 | #endif /* SHARED_SURFACE_H_ */ |
