content/renderer/pepper/ppb_graphics_3d_impl.h

   1 // Copyright (c) 2012 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_RENDERER_PEPPER_PPB_GRAPHICS_3D_IMPL_H_
   6 #define CONTENT_RENDERER_PEPPER_PPB_GRAPHICS_3D_IMPL_H_
   7
   8 #include "base/memory/shared_memory.h"
   9 #include "base/memory/weak_ptr.h"
  10 #include "gpu/command_buffer/common/mailbox.h"
  11 #include "ppapi/shared_impl/ppb_graphics_3d_shared.h"
  12 #include "ppapi/shared_impl/resource.h"
  13
  14 namespace gpu {
  15 struct Capabilities;
  16 }
  17
  18 namespace content {
  19 class CommandBufferProxyImpl;
  20 class GpuChannelHost;
  21
  22 class PPB_Graphics3D_Impl : public ppapi::PPB_Graphics3D_Shared {
  23  public:
  24   static PP_Resource Create(PP_Instance instance,
  25                             PP_Resource share_context,
  26                             const int32_t* attrib_list);
  27   static PP_Resource CreateRaw(
  28       PP_Instance instance,
  29       PP_Resource share_context,
  30       const int32_t* attrib_list,
  31       gpu::Capabilities* capabilities,
  32       base::SharedMemoryHandle* shared_state_handle);
  33
  34   // PPB_Graphics3D_API trusted implementation.
  35   PP_Bool SetGetBuffer(int32_t transfer_buffer_id) override;
  36   scoped_refptr<gpu::Buffer> CreateTransferBuffer(uint32_t size,
  37                                                   int32* id) override;
  38   PP_Bool DestroyTransferBuffer(int32_t id) override;
  39   PP_Bool Flush(int32_t put_offset) override;
  40   gpu::CommandBuffer::State WaitForTokenInRange(int32_t start,
  41                                                 int32_t end) override;
  42   gpu::CommandBuffer::State WaitForGetOffsetInRange(int32_t start,
  43                                                     int32_t end) override;
  44   uint32_t InsertSyncPoint() override;
  45   uint32_t InsertFutureSyncPoint() override;
  46   void RetireSyncPoint(uint32_t) override;
  47
  48   // Binds/unbinds the graphics of this context with the associated instance.
  49   // Returns true if binding/unbinding is successful.
  50   bool BindToInstance(bool bind);
  51
  52   // Returns true if the backing texture is always opaque.
  53   bool IsOpaque();
  54
  55   // Notifications about the view's progress painting.  See PluginInstance.
  56   // These messages are used to send Flush callbacks to the plugin.
  57   void ViewInitiatedPaint();
  58
  59   void GetBackingMailbox(gpu::Mailbox* mailbox, uint32* sync_point) {
  60     *mailbox = mailbox_;
  61     *sync_point = sync_point_;
  62   }
  63
  64   CommandBufferProxyImpl* GetCommandBufferProxy();
  65
  66   GpuChannelHost* channel() { return channel_.get(); }
  67
  68  protected:
  69   ~PPB_Graphics3D_Impl() override;
  70   // ppapi::PPB_Graphics3D_Shared overrides.
  71   gpu::CommandBuffer* GetCommandBuffer() override;
  72   gpu::GpuControl* GetGpuControl() override;
  73   int32 DoSwapBuffers() override;
  74
  75  private:
  76   explicit PPB_Graphics3D_Impl(PP_Instance instance);
  77
  78   bool Init(PPB_Graphics3D_API* share_context, const int32_t* attrib_list);
  79   bool InitRaw(PPB_Graphics3D_API* share_context,
  80                const int32_t* attrib_list,
  81                gpu::Capabilities* capabilities,
  82                base::SharedMemoryHandle* shared_state_handle);
  83
  84   // Notifications received from the GPU process.
  85   void OnSwapBuffers();
  86   void OnContextLost();
  87   void OnConsoleMessage(const std::string& msg, int id);
  88   // Notifications sent to plugin.
  89   void SendContextLost();
  90
  91   // True if context is bound to instance.
  92   bool bound_to_instance_;
  93   // True when waiting for compositor to commit our backing texture.
  94   bool commit_pending_;
  95
  96   gpu::Mailbox mailbox_;
  97   uint32 sync_point_;
  98   bool has_alpha_;
  99   scoped_refptr<GpuChannelHost> channel_;
 100   scoped_ptr<CommandBufferProxyImpl> command_buffer_;
 101
 102   base::WeakPtrFactory<PPB_Graphics3D_Impl> weak_ptr_factory_;
 103
 104   DISALLOW_COPY_AND_ASSIGN(PPB_Graphics3D_Impl);
 105 };
 106
 107 }  // namespace content
 108
 109 #endif  // CONTENT_RENDERER_PEPPER_PPB_GRAPHICS_3D_IMPL_H_