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comparison: gfx/layers/opengl/TextureClientOGL.cpp
gfx/layers/opengl/TextureClientOGL.cpp
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| 1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "GLContext.h" // for GLContext, etc | |
| 7 #include "SurfaceStream.h" | |
| 8 #include "mozilla/Assertions.h" // for MOZ_ASSERT, etc | |
| 9 #include "mozilla/layers/ISurfaceAllocator.h" | |
| 10 #include "mozilla/layers/TextureClientOGL.h" | |
| 11 #include "nsSize.h" // for nsIntSize | |
| 12 | |
| 13 using namespace mozilla::gl; | |
| 14 | |
| 15 namespace mozilla { | |
| 16 namespace layers { | |
| 17 | |
| 18 class CompositableForwarder; | |
| 19 | |
| 20 SharedTextureClientOGL::SharedTextureClientOGL(TextureFlags aFlags) | |
| 21 : TextureClient(aFlags) | |
| 22 , mHandle(0) | |
| 23 , mInverted(false) | |
| 24 { | |
| 25 // SharedTextureClient is always owned externally. | |
| 26 mFlags |= TEXTURE_DEALLOCATE_CLIENT; | |
| 27 } | |
| 28 | |
| 29 SharedTextureClientOGL::~SharedTextureClientOGL() | |
| 30 { | |
| 31 // the shared data is owned externally. | |
| 32 } | |
| 33 | |
| 34 | |
| 35 bool | |
| 36 SharedTextureClientOGL::ToSurfaceDescriptor(SurfaceDescriptor& aOutDescriptor) | |
| 37 { | |
| 38 MOZ_ASSERT(IsValid()); | |
| 39 if (!IsAllocated()) { | |
| 40 return false; | |
| 41 } | |
| 42 aOutDescriptor = SharedTextureDescriptor(mShareType, mHandle, mSize, mInverted); | |
| 43 return true; | |
| 44 } | |
| 45 | |
| 46 void | |
| 47 SharedTextureClientOGL::InitWith(gl::SharedTextureHandle aHandle, | |
| 48 gfx::IntSize aSize, | |
| 49 gl::SharedTextureShareType aShareType, | |
| 50 bool aInverted) | |
| 51 { | |
| 52 MOZ_ASSERT(IsValid()); | |
| 53 MOZ_ASSERT(!IsAllocated()); | |
| 54 mHandle = aHandle; | |
| 55 mSize = aSize; | |
| 56 mShareType = aShareType; | |
| 57 mInverted = aInverted; | |
| 58 if (mInverted) { | |
| 59 AddFlags(TEXTURE_NEEDS_Y_FLIP); | |
| 60 } | |
| 61 } | |
| 62 | |
| 63 bool | |
| 64 SharedTextureClientOGL::Lock(OpenMode mode) | |
| 65 { | |
| 66 MOZ_ASSERT(!mIsLocked); | |
| 67 if (!IsValid() || !IsAllocated()) { | |
| 68 return false; | |
| 69 } | |
| 70 mIsLocked = true; | |
| 71 return true; | |
| 72 } | |
| 73 | |
| 74 void | |
| 75 SharedTextureClientOGL::Unlock() | |
| 76 { | |
| 77 MOZ_ASSERT(mIsLocked); | |
| 78 mIsLocked = false; | |
| 79 } | |
| 80 | |
| 81 bool | |
| 82 SharedTextureClientOGL::IsAllocated() const | |
| 83 { | |
| 84 return mHandle != 0; | |
| 85 } | |
| 86 | |
| 87 StreamTextureClientOGL::StreamTextureClientOGL(TextureFlags aFlags) | |
| 88 : TextureClient(aFlags) | |
| 89 , mIsLocked(false) | |
| 90 { | |
| 91 } | |
| 92 | |
| 93 StreamTextureClientOGL::~StreamTextureClientOGL() | |
| 94 { | |
| 95 // the data is owned externally. | |
| 96 } | |
| 97 | |
| 98 bool | |
| 99 StreamTextureClientOGL::Lock(OpenMode mode) | |
| 100 { | |
| 101 MOZ_ASSERT(!mIsLocked); | |
| 102 if (!IsValid() || !IsAllocated()) { | |
| 103 return false; | |
| 104 } | |
| 105 mIsLocked = true; | |
| 106 return true; | |
| 107 } | |
| 108 | |
| 109 void | |
| 110 StreamTextureClientOGL::Unlock() | |
| 111 { | |
| 112 MOZ_ASSERT(mIsLocked); | |
| 113 mIsLocked = false; | |
| 114 } | |
| 115 | |
| 116 bool | |
| 117 StreamTextureClientOGL::ToSurfaceDescriptor(SurfaceDescriptor& aOutDescriptor) | |
| 118 { | |
| 119 if (!IsAllocated()) { | |
| 120 return false; | |
| 121 } | |
| 122 | |
| 123 gfx::SurfaceStreamHandle handle = mStream->GetShareHandle(); | |
| 124 aOutDescriptor = SurfaceStreamDescriptor(handle, false); | |
| 125 return true; | |
| 126 } | |
| 127 | |
| 128 void | |
| 129 StreamTextureClientOGL::InitWith(gfx::SurfaceStream* aStream) | |
| 130 { | |
| 131 MOZ_ASSERT(!IsAllocated()); | |
| 132 mStream = aStream; | |
| 133 mGL = mStream->GLContext(); | |
| 134 } | |
| 135 | |
| 136 bool | |
| 137 StreamTextureClientOGL::IsAllocated() const | |
| 138 { | |
| 139 return mStream != 0; | |
| 140 } | |
| 141 | |
| 142 | |
| 143 } // namespace | |
| 144 } // namespace |
