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       uint64_t* command_buffer_id);
  34
  35   // PPB_Graphics3D_API trusted implementation.
  36   PP_Bool SetGetBuffer(int32_t transfer_buffer_id) override;
  37   scoped_refptr<gpu::Buffer> CreateTransferBuffer(uint32_t size,
  38                                                   int32* id) override;
  39   PP_Bool DestroyTransferBuffer(int32_t id) override;
  40   PP_Bool Flush(int32_t put_offset) override;
  41   gpu::CommandBuffer::State WaitForTokenInRange(int32_t start,
  42                                                 int32_t end) override;
  43   gpu::CommandBuffer::State WaitForGetOffsetInRange(int32_t start,
  44                                                     int32_t end) override;
  45   uint32_t InsertSyncPoint() override;
  46   uint32_t InsertFutureSyncPoint() override;
  47   void RetireSyncPoint(uint32_t) override;
  48
  49   // Binds/unbinds the graphics of this context with the associated instance.
  50   // Returns true if binding/unbinding is successful.
  51   bool BindToInstance(bool bind);
  52
  53   // Returns true if the backing texture is always opaque.
  54   bool IsOpaque();
  55
  56   // Notifications about the view's progress painting.  See PluginInstance.
  57   // These messages are used to send Flush callbacks to the plugin.
  58   void ViewInitiatedPaint();
  59
  60   void GetBackingMailbox(gpu::Mailbox* mailbox, uint32* sync_point) {
  61     *mailbox = mailbox_;
  62     *sync_point = sync_point_;
  63   }
  64
  65   CommandBufferProxyImpl* GetCommandBufferProxy();
  66
  67   GpuChannelHost* channel() { return channel_.get(); }
  68
  69  protected:
  70   ~PPB_Graphics3D_Impl() override;
  71   // ppapi::PPB_Graphics3D_Shared overrides.
  72   gpu::CommandBuffer* GetCommandBuffer() override;
  73   gpu::GpuControl* GetGpuControl() override;
  74   int32 DoSwapBuffers() override;
  75
  76  private:
  77   explicit PPB_Graphics3D_Impl(PP_Instance instance);
  78
  79   bool Init(PPB_Graphics3D_API* share_context, const int32_t* attrib_list);
  80   bool InitRaw(PPB_Graphics3D_API* share_context,
  81                const int32_t* attrib_list,
  82                gpu::Capabilities* capabilities,
  83                base::SharedMemoryHandle* shared_state_handle,
  84                uint64_t* command_buffer_id);
  85
  86   // Notifications received from the GPU process.
  87   void OnSwapBuffers();
  88   void OnContextLost();
  89   void OnConsoleMessage(const std::string& msg, int id);
  90   // Notifications sent to plugin.
  91   void SendContextLost();
  92
  93   // True if context is bound to instance.
  94   bool bound_to_instance_;
  95   // True when waiting for compositor to commit our backing texture.
  96   bool commit_pending_;
  97
  98   gpu::Mailbox mailbox_;
  99   uint32 sync_point_;
 100   bool has_alpha_;
 101   scoped_refptr<GpuChannelHost> channel_;
 102   scoped_ptr<CommandBufferProxyImpl> command_buffer_;
 103
 104   base::WeakPtrFactory<PPB_Graphics3D_Impl> weak_ptr_factory_;
 105
 106   DISALLOW_COPY_AND_ASSIGN(PPB_Graphics3D_Impl);
 107 };
 108
 109 }  // namespace content
 110
 111 #endif  // CONTENT_RENDERER_PEPPER_PPB_GRAPHICS_3D_IMPL_H_