// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef GPU_COMMAND_BUFFER_CLIENT_GLES2_INTERFACE_H_
#define GPU_COMMAND_BUFFER_CLIENT_GLES2_INTERFACE_H_

#include <GLES2/gl2.h>

#include "base/compiler_specific.h"
#include "gpu/command_buffer/client/interface_base.h"

namespace cc {
class ClientTransferCacheEntry;
class DisplayItemList;
class ImageProvider;
}  // namespace cc

namespace gfx {
class Rect;
class Vector2d;
class Vector2dF;
}  // namespace gfx

namespace gl {
enum class GpuPreference;
}

extern "C" typedef struct _ClientBuffer* ClientBuffer;
extern "C" typedef struct _ClientGpuFence* ClientGpuFence;
extern "C" typedef const struct _GLcolorSpace* GLcolorSpace;

namespace gpu {
namespace gles2 {

// This class is the interface for all client side GL functions.
class GLES2Interface : public InterfaceBase {
 public:
  GLES2Interface() = default;
  virtual ~GLES2Interface() = default;

  virtual void FreeSharedMemory(void*) {}

  // Returns true if the active GPU switched since the last time this
  // method was called. If so, |active_gpu| will be written with the
  // results of the heuristic indicating which GPU is active;
  // kDefault if "unknown", or kLowPower or kHighPerformance if known.
  virtual GLboolean DidGpuSwitch(gl::GpuPreference* active_gpu);

  // Include the auto-generated part of this class. We split this because
  // it means we can easily edit the non-auto generated parts right here in
  // this file instead of having to edit some template or the code generator.
  #include "gpu/command_buffer/client/gles2_interface_autogen.h"
};

}  // namespace gles2
}  // namespace gpu

#endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_INTERFACE_H_