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| |
| #ifndef COMPOSITOR_RESOURCE_H |
| #define COMPOSITOR_RESOURCE_H |
| |
| #include <base/memory/ref_counted.h> |
| #include <components/viz/common/resources/transferable_resource.h> |
| |
| #include <QtCore/qglobal.h> |
| #include <QtGui/qtgui-config.h> |
| |
| #if QT_CONFIG(opengl) |
| # include "compositor_resource_fence.h" |
| #endif |
| |
| namespace viz { |
| class SharedBitmap; |
| } // namespace viz |
| |
| namespace QtWebEngineCore { |
| |
| using CompositorResourceId = quint32; |
| |
| // A resource (OpenGL texture or software shared bitmap). |
| // |
| // - Created by the CompositorResourceTracker from a newly submitted |
| // CompositorFrame's resource_list. |
| // |
| // - Until the frame is committed, its resources are in a 'pending' state and |
| // are inaccessible from outside the CompositorResourceTracker. |
| // |
| // - Once the frame is committed, its resources can be found via |
| // CompositorResourceTracker::findResource. |
| // |
| // - A committed resource's fields may not be updated and are safe to use from |
| // other threads without synchronization (unless noted otherwise). |
| class CompositorResource : public viz::TransferableResource |
| { |
| public: |
| CompositorResource(const viz::TransferableResource &tr) : viz::TransferableResource(tr) {} |
| |
| // Counts the number of times this resource has been encountered in |
| // CompositorFrames' resource lists. |
| // |
| // Corresponds to viz::ReturnedResource::count. |
| // |
| // Updated by CompositorResourceTracker on UI thread. |
| int import_count = 1; |
| |
| // Identifies the last frame that needed this resource. Used by |
| // CompositorResourceTracker to return unused resources back to child |
| // compositors. |
| // |
| // Updated by CompositorResourceTracker on UI thread. |
| quint32 last_used_for_frame = 0; |
| |
| // Bitmap (if is_software). |
| std::unique_ptr<viz::SharedBitmap> bitmap; |
| |
| #if QT_CONFIG(opengl) |
| // OpenGL texture id (if !is_software). |
| quint32 texture_id = 0; |
| |
| // Should be waited on before using the texture (non-null if !is_software). |
| scoped_refptr<CompositorResourceFence> texture_fence; |
| #endif // QT_CONFIG(opengl) |
| }; |
| |
| inline bool operator<(const CompositorResource &r1, const CompositorResource &r2) |
| { |
| return r1.id < r2.id; |
| } |
| |
| inline bool operator<(const CompositorResource &r, CompositorResourceId id) |
| { |
| return r.id < id; |
| } |
| |
| inline bool operator<(CompositorResourceId id, const CompositorResource &r) |
| { |
| return id < r.id; |
| } |
| |
| } // namespace QtWebEngineCore |
| |
| #endif // !COMPOSITOR_RESOURCE_H |