ui/gl/angle_platform_impl.h

// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_GL_ANGLE_PLATFORM_IMPL_H_
#define UI_GL_ANGLE_PLATFORM_IMPL_H_

// Implements the ANGLE platform interface, for functionality like
// histograms and trace profiling.

#include "base/compiler_specific.h"
#include "base/macros.h"
#include "third_party/angle/include/platform/Platform.h"
#include "ui/gl/gl_export.h"

namespace gl {

// Derives the base ANGLE platform and provides implementations
class GL_EXPORT ANGLEPlatformImpl : NON_EXPORTED_BASE(public angle::Platform) {
 public:
  ANGLEPlatformImpl();
  ~ANGLEPlatformImpl() override;

  // angle::Platform:
  double currentTime() override;
  double monotonicallyIncreasingTime() override;
  void logError(const char* errorMessage) override;
  void logWarning(const char* warningMessage) override;
  const unsigned char* getTraceCategoryEnabledFlag(
      const char* category_group) override;
  TraceEventHandle addTraceEvent(char phase,
                                 const unsigned char* category_group_enabled,
                                 const char* name,
                                 unsigned long long id,
                                 double timestamp,
                                 int num_args,
                                 const char** arg_names,
                                 const unsigned char* arg_types,
                                 const unsigned long long* arg_values,
                                 unsigned char flags) override;
  void updateTraceEventDuration(const unsigned char* category_group_enabled,
                                const char* name,
                                TraceEventHandle handle) override;
  void histogramCustomCounts(const char* name,
                             int sample,
                             int min,
                             int max,
                             int bucket_count) override;
  void histogramEnumeration(const char* name,
                            int sample,
                            int boundary_value) override;
  void histogramSparse(const char* name, int sample) override;
  void histogramBoolean(const char* name, bool sample) override;

 private:
  DISALLOW_COPY_AND_ASSIGN(ANGLEPlatformImpl);
};

}  // namespace gl

#endif  // UI_GL_ANGLE_PLATFORM_IMPL_H_