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comparison: gfx/layers/client/CanvasClient.cpp
gfx/layers/client/CanvasClient.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:1fac7f2530b8 |
|---|---|
| 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 "mozilla/layers/CanvasClient.h" | |
| 7 #include "ClientCanvasLayer.h" // for ClientCanvasLayer | |
| 8 #include "GLContext.h" // for GLContext | |
| 9 #include "GLScreenBuffer.h" // for GLScreenBuffer | |
| 10 #include "SurfaceStream.h" // for SurfaceStream | |
| 11 #include "SurfaceTypes.h" // for SurfaceStreamHandle | |
| 12 #include "gfx2DGlue.h" // for ImageFormatToSurfaceFormat | |
| 13 #include "gfxPlatform.h" // for gfxPlatform | |
| 14 #include "mozilla/gfx/BaseSize.h" // for BaseSize | |
| 15 #include "mozilla/layers/CompositableForwarder.h" | |
| 16 #include "mozilla/layers/GrallocTextureClient.h" | |
| 17 #include "mozilla/layers/LayersTypes.h" | |
| 18 #include "mozilla/layers/TextureClient.h" // for TextureClient, etc | |
| 19 #include "mozilla/layers/TextureClientOGL.h" | |
| 20 #include "nsAutoPtr.h" // for nsRefPtr | |
| 21 #include "nsDebug.h" // for printf_stderr, NS_ASSERTION | |
| 22 #include "nsXULAppAPI.h" // for XRE_GetProcessType, etc | |
| 23 #ifdef MOZ_WIDGET_GONK | |
| 24 #include "SharedSurfaceGralloc.h" | |
| 25 #endif | |
| 26 | |
| 27 using namespace mozilla::gfx; | |
| 28 using namespace mozilla::gl; | |
| 29 | |
| 30 namespace mozilla { | |
| 31 namespace layers { | |
| 32 | |
| 33 /* static */ TemporaryRef<CanvasClient> | |
| 34 CanvasClient::CreateCanvasClient(CanvasClientType aType, | |
| 35 CompositableForwarder* aForwarder, | |
| 36 TextureFlags aFlags) | |
| 37 { | |
| 38 #ifndef MOZ_WIDGET_GONK | |
| 39 if (XRE_GetProcessType() != GeckoProcessType_Default) { | |
| 40 NS_WARNING("Most platforms still need an optimized way to share GL cross process."); | |
| 41 return new CanvasClient2D(aForwarder, aFlags); | |
| 42 } | |
| 43 #endif | |
| 44 if (aType == CanvasClientGLContext && | |
| 45 aForwarder->GetCompositorBackendType() == LayersBackend::LAYERS_OPENGL) { | |
| 46 aFlags |= TEXTURE_DEALLOCATE_CLIENT; | |
| 47 return new CanvasClientSurfaceStream(aForwarder, aFlags); | |
| 48 } | |
| 49 return new CanvasClient2D(aForwarder, aFlags); | |
| 50 } | |
| 51 | |
| 52 void | |
| 53 CanvasClient2D::Update(gfx::IntSize aSize, ClientCanvasLayer* aLayer) | |
| 54 { | |
| 55 if (mBuffer && | |
| 56 (mBuffer->IsImmutable() || mBuffer->GetSize() != aSize)) { | |
| 57 GetForwarder()->RemoveTextureFromCompositable(this, mBuffer); | |
| 58 mBuffer = nullptr; | |
| 59 } | |
| 60 | |
| 61 bool bufferCreated = false; | |
| 62 if (!mBuffer) { | |
| 63 bool isOpaque = (aLayer->GetContentFlags() & Layer::CONTENT_OPAQUE); | |
| 64 gfxContentType contentType = isOpaque | |
| 65 ? gfxContentType::COLOR | |
| 66 : gfxContentType::COLOR_ALPHA; | |
| 67 gfxImageFormat format | |
| 68 = gfxPlatform::GetPlatform()->OptimalFormatForContent(contentType); | |
| 69 uint32_t flags = TEXTURE_FLAGS_DEFAULT; | |
| 70 if (mTextureFlags & TEXTURE_NEEDS_Y_FLIP) { | |
| 71 flags |= TEXTURE_NEEDS_Y_FLIP; | |
| 72 } | |
| 73 mBuffer = CreateBufferTextureClient(gfx::ImageFormatToSurfaceFormat(format), | |
| 74 flags, | |
| 75 gfxPlatform::GetPlatform()->GetPreferredCanvasBackend()); | |
| 76 MOZ_ASSERT(mBuffer->CanExposeDrawTarget()); | |
| 77 mBuffer->AllocateForSurface(aSize); | |
| 78 | |
| 79 bufferCreated = true; | |
| 80 } | |
| 81 | |
| 82 if (!mBuffer->Lock(OPEN_WRITE_ONLY)) { | |
| 83 mBuffer = nullptr; | |
| 84 return; | |
| 85 } | |
| 86 | |
| 87 bool updated = false; | |
| 88 { | |
| 89 // Restrict drawTarget to a scope so that terminates before Unlock. | |
| 90 RefPtr<DrawTarget> target = | |
| 91 mBuffer->GetAsDrawTarget(); | |
| 92 if (target) { | |
| 93 aLayer->UpdateTarget(target); | |
| 94 updated = true; | |
| 95 } | |
| 96 } | |
| 97 mBuffer->Unlock(); | |
| 98 | |
| 99 if (bufferCreated && !AddTextureClient(mBuffer)) { | |
| 100 mBuffer = nullptr; | |
| 101 return; | |
| 102 } | |
| 103 | |
| 104 if (updated) { | |
| 105 GetForwarder()->UpdatedTexture(this, mBuffer, nullptr); | |
| 106 GetForwarder()->UseTexture(this, mBuffer); | |
| 107 } | |
| 108 } | |
| 109 | |
| 110 CanvasClientSurfaceStream::CanvasClientSurfaceStream(CompositableForwarder* aLayerForwarder, | |
| 111 TextureFlags aFlags) | |
| 112 : CanvasClient(aLayerForwarder, aFlags) | |
| 113 { | |
| 114 } | |
| 115 | |
| 116 void | |
| 117 CanvasClientSurfaceStream::Update(gfx::IntSize aSize, ClientCanvasLayer* aLayer) | |
| 118 { | |
| 119 aLayer->mGLContext->MakeCurrent(); | |
| 120 GLScreenBuffer* screen = aLayer->mGLContext->Screen(); | |
| 121 SurfaceStream* stream = nullptr; | |
| 122 | |
| 123 if (aLayer->mStream) { | |
| 124 stream = aLayer->mStream; | |
| 125 | |
| 126 // Copy our current surface to the current producer surface in our stream, then | |
| 127 // call SwapProducer to make a new buffer ready. | |
| 128 stream->CopySurfaceToProducer(aLayer->mTextureSurface, aLayer->mFactory); | |
| 129 stream->SwapProducer(aLayer->mFactory, gfx::IntSize(aSize.width, aSize.height)); | |
| 130 } else { | |
| 131 stream = screen->Stream(); | |
| 132 } | |
| 133 | |
| 134 bool isCrossProcess = !(XRE_GetProcessType() == GeckoProcessType_Default); | |
| 135 bool bufferCreated = false; | |
| 136 if (isCrossProcess) { | |
| 137 #ifdef MOZ_WIDGET_GONK | |
| 138 SharedSurface* surf = stream->SwapConsumer(); | |
| 139 if (!surf) { | |
| 140 printf_stderr("surf is null post-SwapConsumer!\n"); | |
| 141 return; | |
| 142 } | |
| 143 | |
| 144 if (surf->Type() != SharedSurfaceType::Gralloc) { | |
| 145 printf_stderr("Unexpected non-Gralloc SharedSurface in IPC path!"); | |
| 146 MOZ_ASSERT(false); | |
| 147 return; | |
| 148 } | |
| 149 | |
| 150 SharedSurface_Gralloc* grallocSurf = SharedSurface_Gralloc::Cast(surf); | |
| 151 | |
| 152 RefPtr<GrallocTextureClientOGL> grallocTextureClient = | |
| 153 static_cast<GrallocTextureClientOGL*>(grallocSurf->GetTextureClient()); | |
| 154 | |
| 155 // If IPDLActor is null means this TextureClient didn't AddTextureClient yet | |
| 156 if (!grallocTextureClient->GetIPDLActor()) { | |
| 157 grallocTextureClient->SetTextureFlags(mTextureInfo.mTextureFlags); | |
| 158 AddTextureClient(grallocTextureClient); | |
| 159 } | |
| 160 | |
| 161 if (grallocTextureClient->GetIPDLActor()) { | |
| 162 GetForwarder()->UseTexture(this, grallocTextureClient); | |
| 163 } | |
| 164 #else | |
| 165 printf_stderr("isCrossProcess, but not MOZ_WIDGET_GONK! Someone needs to write some code!"); | |
| 166 MOZ_ASSERT(false); | |
| 167 #endif | |
| 168 } else { | |
| 169 if (!mBuffer) { | |
| 170 StreamTextureClientOGL* textureClient = | |
| 171 new StreamTextureClientOGL(mTextureInfo.mTextureFlags); | |
| 172 textureClient->InitWith(stream); | |
| 173 mBuffer = textureClient; | |
| 174 bufferCreated = true; | |
| 175 } | |
| 176 | |
| 177 if (bufferCreated && !AddTextureClient(mBuffer)) { | |
| 178 mBuffer = nullptr; | |
| 179 } | |
| 180 | |
| 181 if (mBuffer) { | |
| 182 GetForwarder()->UseTexture(this, mBuffer); | |
| 183 } | |
| 184 } | |
| 185 | |
| 186 aLayer->Painted(); | |
| 187 } | |
| 188 | |
| 189 } | |
| 190 } |
