gpu/command_buffer/common/gpu_control.h

   1 // Copyright 2013 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 GPU_COMMAND_BUFFER_COMMON_GPU_CONTROL_H_
   6 #define GPU_COMMAND_BUFFER_COMMON_GPU_CONTROL_H_
   7
   8 #include <vector>
   9
  10 #include "base/callback.h"
  11 #include "gpu/command_buffer/common/capabilities.h"
  12 #include "gpu/command_buffer/common/mailbox.h"
  13 #include "gpu/command_buffer/common/types.h"
  14 #include "gpu/gpu_export.h"
  15
  16 namespace gfx {
  17 class GpuMemoryBuffer;
  18 }
  19
  20 namespace gpu {
  21 struct ManagedMemoryStats;
  22
  23 // Common interface for GpuControl implementations.
  24 class GPU_EXPORT GpuControl {
  25  public:
  26   GpuControl() {}
  27   virtual ~GpuControl() {}
  28
  29   virtual Capabilities GetCapabilities() = 0;
  30
  31   // Create a gpu memory buffer of the given dimensions and format. Returns
  32   // its ID or -1 on error.
  33   virtual gfx::GpuMemoryBuffer* CreateGpuMemoryBuffer(
  34       size_t width,
  35       size_t height,
  36       unsigned internalformat,
  37       int32* id) = 0;
  38
  39   // Destroy a gpu memory buffer. The ID must be positive.
  40   virtual void DestroyGpuMemoryBuffer(int32 id) = 0;
  41
  42   // Generates n unique mailbox names that can be used with
  43   // GL_texture_mailbox_CHROMIUM.
  44   virtual bool GenerateMailboxNames(unsigned num,
  45                                     std::vector<gpu::Mailbox>* names) = 0;
  46
  47   // Inserts a sync point, returning its ID. Sync point IDs are global and can
  48   // be used for cross-context synchronization.
  49   virtual uint32 InsertSyncPoint() = 0;
  50
  51   // Runs |callback| when a sync point is reached.
  52   virtual void SignalSyncPoint(uint32 sync_point,
  53                                const base::Closure& callback) = 0;
  54
  55   // Runs |callback| when a query created via glCreateQueryEXT() has cleared
  56   // passed the glEndQueryEXT() point.
  57   virtual void SignalQuery(uint32 query, const base::Closure& callback) = 0;
  58
  59   virtual void SetSurfaceVisible(bool visible) = 0;
  60
  61   virtual void SendManagedMemoryStats(const ManagedMemoryStats& stats) = 0;
  62
  63   // Invokes the callback once the context has been flushed.
  64   virtual void Echo(const base::Closure& callback) = 0;
  65
  66  private:
  67   DISALLOW_COPY_AND_ASSIGN(GpuControl);
  68 };
  69
  70 }  // namespace gpu
  71
  72 #endif  // GPU_COMMAND_BUFFER_COMMON_GPU_CONTROL_H_