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Diffstat (limited to '')
| -rw-r--r-- | gfx/layers/client/ImageClient.cpp | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/gfx/layers/client/ImageClient.cpp b/gfx/layers/client/ImageClient.cpp new file mode 100644 index 0000000000..fb89d69f6b --- /dev/null +++ b/gfx/layers/client/ImageClient.cpp @@ -0,0 +1,277 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "ImageClient.h" + +#include <stdint.h> // for uint32_t + +#include "ImageContainer.h" // for Image, PlanarYCbCrImage, etc +#include "ImageTypes.h" // for ImageFormat::PLANAR_YCBCR, etc +#include "GLImages.h" // for SurfaceTextureImage::Data, etc +#include "gfx2DGlue.h" // for ImageFormatToSurfaceFormat +#include "gfxPlatform.h" // for gfxPlatform +#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc +#include "mozilla/RefPtr.h" // for RefPtr, already_AddRefed +#include "mozilla/gfx/2D.h" +#include "mozilla/gfx/BaseSize.h" // for BaseSize +#include "mozilla/gfx/Point.h" // for IntSize +#include "mozilla/gfx/Types.h" // for SurfaceFormat, etc +#include "mozilla/layers/CompositableClient.h" // for CompositableClient +#include "mozilla/layers/CompositableForwarder.h" +#include "mozilla/layers/CompositorTypes.h" // for CompositableType, etc +#include "mozilla/layers/ISurfaceAllocator.h" +#include "mozilla/layers/LayersSurfaces.h" // for SurfaceDescriptor, etc +#include "mozilla/layers/TextureForwarder.h" +#include "mozilla/layers/TextureClient.h" // for TextureClient, etc +#include "mozilla/layers/TextureClientOGL.h" // for SurfaceTextureClient +#include "mozilla/mozalloc.h" // for operator delete, etc +#include "nsCOMPtr.h" // for already_AddRefed +#include "nsDebug.h" // for NS_WARNING, NS_ASSERTION +#include "nsISupportsImpl.h" // for Image::Release, etc +#include "nsRect.h" // for mozilla::gfx::IntRect + +namespace mozilla { +namespace layers { + +using namespace mozilla::gfx; + +/* static */ +already_AddRefed<ImageClient> ImageClient::CreateImageClient( + CompositableType aCompositableHostType, CompositableForwarder* aForwarder, + TextureFlags aFlags) { + RefPtr<ImageClient> result = nullptr; + switch (aCompositableHostType) { + case CompositableType::IMAGE: + result = + new ImageClientSingle(aForwarder, aFlags, CompositableType::IMAGE); + break; + case CompositableType::UNKNOWN: + result = nullptr; + break; + default: + MOZ_CRASH("GFX: unhandled program type image"); + } + + NS_ASSERTION(result, "Failed to create ImageClient"); + + return result.forget(); +} + +void ImageClient::RemoveTexture(TextureClient* aTexture) { + GetForwarder()->RemoveTextureFromCompositable(this, aTexture); +} + +ImageClientSingle::ImageClientSingle(CompositableForwarder* aFwd, + TextureFlags aFlags, + CompositableType aType) + : ImageClient(aFwd, aFlags, aType) {} + +TextureInfo ImageClientSingle::GetTextureInfo() const { + return TextureInfo(CompositableType::IMAGE); +} + +void ImageClientSingle::FlushAllImages() { + for (auto& b : mBuffers) { + // It should be safe to just assume a default render root here, even if + // the texture actually presents in a content render root, as the only + // risk would be if the content render root has not / is not going to + // generate a frame before the texture gets cleared. + RemoveTexture(b.mTextureClient); + } + mBuffers.Clear(); +} + +/* static */ +already_AddRefed<TextureClient> ImageClient::CreateTextureClientForImage( + Image* aImage, KnowsCompositor* aKnowsCompositor) { + RefPtr<TextureClient> texture; + if (aImage->GetFormat() == ImageFormat::PLANAR_YCBCR) { + PlanarYCbCrImage* ycbcr = static_cast<PlanarYCbCrImage*>(aImage); + const PlanarYCbCrData* data = ycbcr->GetData(); + if (!data) { + return nullptr; + } + texture = TextureClient::CreateForYCbCr( + aKnowsCompositor, data->mPictureRect, data->YDataSize(), data->mYStride, + data->CbCrDataSize(), data->mCbCrStride, data->mStereoMode, + data->mColorDepth, data->mYUVColorSpace, data->mColorRange, + data->mChromaSubsampling, TextureFlags::DEFAULT); + if (!texture) { + return nullptr; + } + + TextureClientAutoLock autoLock(texture, OpenMode::OPEN_WRITE_ONLY); + if (!autoLock.Succeeded()) { + return nullptr; + } + + bool status = UpdateYCbCrTextureClient(texture, *data); + MOZ_ASSERT(status); + if (!status) { + return nullptr; + } +#ifdef MOZ_WIDGET_ANDROID + } else if (aImage->GetFormat() == ImageFormat::SURFACE_TEXTURE) { + gfx::IntSize size = aImage->GetSize(); + SurfaceTextureImage* typedImage = aImage->AsSurfaceTextureImage(); + texture = AndroidSurfaceTextureData::CreateTextureClient( + typedImage->GetHandle(), size, typedImage->GetContinuous(), + typedImage->GetOriginPos(), typedImage->GetHasAlpha(), + typedImage->GetTransformOverride(), + aKnowsCompositor->GetTextureForwarder(), TextureFlags::DEFAULT); +#endif + } else { + RefPtr<gfx::SourceSurface> surface = aImage->GetAsSourceSurface(); + MOZ_ASSERT(surface); + texture = TextureClient::CreateForDrawing( + aKnowsCompositor, surface->GetFormat(), aImage->GetSize(), + BackendSelector::Content, TextureFlags::DEFAULT); + if (!texture) { + return nullptr; + } + + MOZ_ASSERT(texture->CanExposeDrawTarget()); + + if (!texture->Lock(OpenMode::OPEN_WRITE_ONLY)) { + return nullptr; + } + + { + // We must not keep a reference to the DrawTarget after it has been + // unlocked. + DrawTarget* dt = texture->BorrowDrawTarget(); + if (!dt) { + gfxWarning() + << "ImageClientSingle::UpdateImage failed in BorrowDrawTarget"; + return nullptr; + } + MOZ_ASSERT(surface.get()); + dt->CopySurface(surface, IntRect(IntPoint(), surface->GetSize()), + IntPoint()); + } + + texture->Unlock(); + } + return texture.forget(); +} + +bool ImageClientSingle::UpdateImage(ImageContainer* aContainer) { + AutoTArray<ImageContainer::OwningImage, 4> images; + uint32_t generationCounter; + aContainer->GetCurrentImages(&images, &generationCounter); + + if (mLastUpdateGenerationCounter == generationCounter) { + return true; + } + mLastUpdateGenerationCounter = generationCounter; + + // Don't try to update to invalid images. + images.RemoveElementsBy( + [](const auto& image) { return !image.mImage->IsValid(); }); + if (images.IsEmpty()) { + // This can happen if a ClearAllImages raced with SetCurrentImages from + // another thread and ClearImagesFromImageBridge ran after the + // SetCurrentImages call but before UpdateImageClientNow. + // This can also happen if all images in the list are invalid. + // We return true because the caller would attempt to recreate the + // ImageClient otherwise, and that isn't going to help. + for (auto& b : mBuffers) { + RemoveTexture(b.mTextureClient); + } + mBuffers.Clear(); + return true; + } + + nsTArray<Buffer> newBuffers; + AutoTArray<CompositableForwarder::TimedTextureClient, 4> textures; + + for (auto& img : images) { + Image* image = img.mImage; + + RefPtr<TextureClient> texture = image->GetTextureClient(GetForwarder()); + const bool hasTextureClient = !!texture; + + for (int32_t i = mBuffers.Length() - 1; i >= 0; --i) { + if (mBuffers[i].mImageSerial == image->GetSerial()) { + if (hasTextureClient) { + MOZ_ASSERT(image->GetTextureClient(GetForwarder()) == + mBuffers[i].mTextureClient); + } else { + texture = mBuffers[i].mTextureClient; + } + // Remove this element from mBuffers so mBuffers only contains + // images that aren't present in 'images' + mBuffers.RemoveElementAt(i); + } + } + + if (!texture) { + // Slow path, we should not be hitting it very often and if we do it means + // we are using an Image class that is not backed by textureClient and we + // should fix it. + texture = CreateTextureClientForImage(image, GetForwarder()); + } + + if (!texture) { + return false; + } + + // We check if the texture's allocator is still open, since in between media + // decoding a frame and adding it to the compositable, we could have + // restarted the GPU process. + if (!texture->GetAllocator()->IPCOpen()) { + continue; + } + if (!AddTextureClient(texture)) { + return false; + } + + CompositableForwarder::TimedTextureClient* t = textures.AppendElement(); + t->mTextureClient = texture; + t->mTimeStamp = img.mTimeStamp; + t->mPictureRect = image->GetPictureRect(); + t->mFrameID = img.mFrameID; + t->mProducerID = img.mProducerID; + + Buffer* newBuf = newBuffers.AppendElement(); + newBuf->mImageSerial = image->GetSerial(); + newBuf->mTextureClient = texture; + + texture->SyncWithObject(GetForwarder()->GetSyncObject()); + } + + GetForwarder()->UseTextures(this, textures); + + for (auto& b : mBuffers) { + RemoveTexture(b.mTextureClient); + } + mBuffers = std::move(newBuffers); + + return true; +} + +RefPtr<TextureClient> ImageClientSingle::GetForwardedTexture() { + if (mBuffers.Length() == 0) { + return nullptr; + } + return mBuffers[0].mTextureClient; +} + +bool ImageClientSingle::AddTextureClient(TextureClient* aTexture) { + MOZ_ASSERT((mTextureFlags & aTexture->GetFlags()) == mTextureFlags); + return CompositableClient::AddTextureClient(aTexture); +} + +void ImageClientSingle::OnDetach() { mBuffers.Clear(); } + +ImageClient::ImageClient(CompositableForwarder* aFwd, TextureFlags aFlags, + CompositableType aType) + : CompositableClient(aFwd, aFlags), + mType(aType), + mLastUpdateGenerationCounter(0) {} + +} // namespace layers +} // namespace mozilla |