| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef UI_ACCELERATED_WIDGET_MAC_ACCELERATED_WIDGET_MAC_H_ |
| #define UI_ACCELERATED_WIDGET_MAC_ACCELERATED_WIDGET_MAC_H_ |
| |
| #import <Cocoa/Cocoa.h> |
| #include <IOSurface/IOSurface.h> |
| #include <vector> |
| |
| #include "base/mac/scoped_cftyperef.h" |
| #import "base/mac/scoped_nsobject.h" |
| #include "base/macros.h" |
| #include "base/time/time.h" |
| #include "ui/accelerated_widget_mac/accelerated_widget_mac_export.h" |
| #include "ui/accelerated_widget_mac/ca_layer_frame_sink.h" |
| #include "ui/base/cocoa/remote_layer_api.h" |
| #include "ui/gfx/geometry/rect.h" |
| #include "ui/gfx/geometry/size.h" |
| #include "ui/gfx/native_widget_types.h" |
| |
| namespace ui { |
| |
| // A class through which an AcceleratedWidget may be bound to draw the contents |
| // of an NSView. An AcceleratedWidget may be bound to multiple different views |
| // throughout its lifetime (one at a time, though). |
| class AcceleratedWidgetMacNSView { |
| public: |
| // The CALayer tree provided by the CALayerParams sent to the |
| // AcceleratedWidgetMac will be installed under the -[NSView layer] of this |
| // NSView. |
| virtual NSView* AcceleratedWidgetGetNSView() const = 0; |
| |
| // Retrieve the vsync parameters for the monitor on which the NSView currently |
| // is being displayed. |
| // TODO(ccameron): This is not the appropriate place for this function. A |
| // helper library to query monitor vsync parameters should be added. |
| virtual void AcceleratedWidgetGetVSyncParameters( |
| base::TimeTicks* timebase, base::TimeDelta* interval) const = 0; |
| |
| // Called on swap completion. This is used to update background colors and to |
| // suppressing drawing of blank windows until content is available. |
| virtual void AcceleratedWidgetSwapCompleted() = 0; |
| }; |
| |
| // AcceleratedWidgetMac owns a tree of CALayers. The widget may be passed |
| // to a ui::Compositor, which will, through its output surface, call the |
| // CALayerFrameSink interface. The CALayers may be installed in an NSView |
| // by setting the AcceleratedWidgetMacNSView for the helper. |
| class ACCELERATED_WIDGET_MAC_EXPORT AcceleratedWidgetMac |
| : public CALayerFrameSink { |
| public: |
| AcceleratedWidgetMac(); |
| virtual ~AcceleratedWidgetMac(); |
| |
| gfx::AcceleratedWidget accelerated_widget() { return native_widget_; } |
| |
| void SetNSView(AcceleratedWidgetMacNSView* view); |
| void ResetNSView(); |
| |
| // Return true if the last frame swapped has a size in DIP of |dip_size|. |
| bool HasFrameOfSize(const gfx::Size& dip_size) const; |
| |
| // Translate from a gfx::AcceleratedWidget to the NSView in which it will |
| // appear. This may return nil if |widget| is invalid or is not currently |
| // attached to an NSView. |
| static NSView* GetNSView(gfx::AcceleratedWidget widget); |
| |
| private: |
| // For CALayerFrameSink::FromAcceleratedWidget to access Get. |
| friend class CALayerFrameSink; |
| |
| // Translate from a gfx::AcceleratedWidget handle to the underlying |
| // AcceleratedWidgetMac (used by other gfx::AcceleratedWidget translation |
| // functions). |
| static AcceleratedWidgetMac* Get(gfx::AcceleratedWidget widget); |
| |
| void GotCALayerFrame(base::scoped_nsobject<CALayer> content_layer, |
| const gfx::Size& pixel_size, |
| float scale_factor); |
| void GotIOSurfaceFrame(base::ScopedCFTypeRef<IOSurfaceRef> io_surface, |
| const gfx::Size& pixel_size, |
| float scale_factor); |
| |
| // gfx::CALayerFrameSink implementation: |
| void SetSuspended(bool suspended) override; |
| void UpdateCALayerTree(const gfx::CALayerParams& ca_layer_params) override; |
| void GetVSyncParameters(base::TimeTicks* timebase, |
| base::TimeDelta* interval) const override; |
| |
| // The AcceleratedWidgetMacNSView that is using this as its internals. |
| AcceleratedWidgetMacNSView* view_ = nullptr; |
| |
| // A phony NSView handle used to identify this. |
| gfx::AcceleratedWidget native_widget_ = gfx::kNullAcceleratedWidget; |
| |
| // If the output surface is suspended, then |remote_layer_| will be updated, |
| // but the NSView's layer hierarchy will remain unchanged. |
| bool is_suspended_ = false; |
| base::scoped_nsobject<CALayerHost> remote_layer_; |
| |
| // A flipped layer, which acts as the parent of the compositing and software |
| // layers. This layer is flipped so that the we don't need to recompute the |
| // origin for sub-layers when their position changes (this is impossible when |
| // using remote layers, as their size change cannot be synchronized with the |
| // window). This indirection is needed because flipping hosted layers (like |
| // |background_layer_| of RenderWidgetHostViewCocoa) leads to unpredictable |
| // behavior. |
| base::scoped_nsobject<CALayer> flipped_layer_; |
| |
| // A CALayer with content provided by the output surface. |
| base::scoped_nsobject<CALayer> content_layer_; |
| |
| // A CALayer that has its content set to an IOSurface. |
| base::scoped_nsobject<CALayer> io_surface_layer_; |
| |
| // The size in DIP of the last swap received from |compositor_|. |
| gfx::Size last_swap_size_dip_; |
| |
| DISALLOW_COPY_AND_ASSIGN(AcceleratedWidgetMac); |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_ACCELERATED_WIDGET_MAC_ACCELERATED_WIDGET_MAC_H_ |