content/common/gpu/image_transport_surface_overlay_mac.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_OVERLAY_MAC_H_
   6 #define CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_OVERLAY_MAC_H_
   7
   8 #import "base/mac/scoped_nsobject.h"
   9 #include "content/common/gpu/gpu_command_buffer_stub.h"
  10 #include "content/common/gpu/image_transport_surface.h"
  11 #include "ui/gl/gl_surface.h"
  12
  13 @class CAContext;
  14 @class CALayer;
  15
  16 namespace content {
  17
  18 class ImageTransportSurfaceOverlayMac : public gfx::GLSurface,
  19                                         public ImageTransportSurface {
  20  public:
  21   ImageTransportSurfaceOverlayMac(GpuChannelManager* manager,
  22                                   GpuCommandBufferStub* stub,
  23                                   gfx::PluginWindowHandle handle);
  24
  25   // GLSurface implementation
  26   bool Initialize() override;
  27   void Destroy() override;
  28   bool IsOffscreen() override;
  29   gfx::SwapResult SwapBuffers() override;
  30   gfx::SwapResult PostSubBuffer(int x, int y, int width, int height) override;
  31   bool SupportsPostSubBuffer() override;
  32   gfx::Size GetSize() override;
  33   void* GetHandle() override;
  34
  35   bool ScheduleOverlayPlane(int z_order,
  36                             gfx::OverlayTransform transform,
  37                             gfx::GLImage* image,
  38                             const gfx::Rect& bounds_rect,
  39                             const gfx::RectF& crop_rect) override;
  40   bool IsSurfaceless() const override;
  41
  42   // ImageTransportSurface implementation
  43   void OnBufferPresented(
  44       const AcceleratedSurfaceMsg_BufferPresented_Params& params) override;
  45   void OnResize(gfx::Size pixel_size, float scale_factor) override;
  46   void SetLatencyInfo(const std::vector<ui::LatencyInfo>&) override;
  47   void WakeUpGpu() override;
  48
  49  private:
  50   ~ImageTransportSurfaceOverlayMac() override;
  51   scoped_ptr<ImageTransportHelper> helper_;
  52   base::scoped_nsobject<CAContext> ca_context_;
  53   base::scoped_nsobject<CALayer> layer_;
  54
  55   // A phony NSView handle used to identify this.
  56   gfx::AcceleratedWidget widget_;
  57
  58   gfx::Size pixel_size_;
  59   float scale_factor_;
  60   std::vector<ui::LatencyInfo> latency_info_;
  61
  62   // Weak pointer to the image provided when ScheduleOverlayPlane is called. Is
  63   // consumed and reset when SwapBuffers is called. For now, only one overlay
  64   // plane is supported.
  65   gfx::GLImage* pending_overlay_image_;
  66 };
  67
  68 }  // namespace content
  69
  70 #endif  // CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_OVERLAY_MAC_H_