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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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tree10027f336435511475e392454359edea8e25895d /gfx/layers/GPUVideoImage.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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diff --git a/gfx/layers/GPUVideoImage.h b/gfx/layers/GPUVideoImage.h
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+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * 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/. */
+
+#ifndef GFX_GPU_VIDEO_IMAGE_H
+#define GFX_GPU_VIDEO_IMAGE_H
+
+#include "mozilla/RefPtr.h"
+#include "ImageContainer.h"
+#include "mozilla/layers/GPUVideoTextureClient.h"
+#include "mozilla/layers/CompositableClient.h"
+#include "mozilla/layers/ImageBridgeChild.h"
+
+namespace mozilla {
+namespace dom {
+class VideoDecoderManagerChild;
+}
+namespace layers {
+
+// Image class that refers to a decoded video frame within
+// the GPU process.
+class GPUVideoImage final : public Image {
+public:
+ GPUVideoImage(dom::VideoDecoderManagerChild* aManager,
+ const SurfaceDescriptorGPUVideo& aSD,
+ const gfx::IntSize& aSize)
+ : Image(nullptr, ImageFormat::GPU_VIDEO)
+ , mSize(aSize)
+ {
+ // Create the TextureClient immediately since the GPUVideoTextureData
+ // is responsible for deallocating the SurfaceDescriptor.
+ //
+ // Use the RECYCLE texture flag, since it's likely that our 'real'
+ // TextureData (in the decoder thread of the GPU process) is using
+ // it too, and we want to make sure we don't send the delete message
+ // until we've stopped being used on the compositor.
+ mTextureClient =
+ TextureClient::CreateWithData(new GPUVideoTextureData(aManager, aSD, aSize),
+ TextureFlags::RECYCLE,
+ ImageBridgeChild::GetSingleton().get());
+ }
+
+ ~GPUVideoImage() override {}
+
+ gfx::IntSize GetSize() override { return mSize; }
+
+ virtual already_AddRefed<gfx::SourceSurface> GetAsSourceSurface() override
+ {
+ if (!mTextureClient) {
+ return nullptr;
+ }
+ GPUVideoTextureData* data = mTextureClient->GetInternalData()->AsGPUVideoTextureData();
+ return data->GetAsSourceSurface();
+ }
+
+ virtual TextureClient* GetTextureClient(KnowsCompositor* aForwarder) override
+ {
+ MOZ_ASSERT(aForwarder == ImageBridgeChild::GetSingleton(), "Must only use GPUVideo on ImageBridge");
+ return mTextureClient;
+ }
+
+private:
+ gfx::IntSize mSize;
+ RefPtr<TextureClient> mTextureClient;
+};
+
+} // namepace layers
+} // namespace mozilla
+
+#endif // GFX_GPU_VIDEO_IMAGE_H