ui/gl/gpu_timing_fake.h

   1 // Copyright 2015 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 UI_GL_GPU_TIMING_FAKE_H_
   6 #define UI_GL_GPU_TIMING_FAKE_H_
   7
   8 #include <map>
   9 #include <set>
  10
  11 #include "ui/gl/gl_bindings.h"
  12
  13 namespace gfx {
  14 class MockGLInterface;
  15
  16 class GPUTimingFake {
  17  public:
  18   GPUTimingFake();
  19   ~GPUTimingFake();
  20
  21   void Reset();
  22
  23   // Used to set the current GPU time queries will return.
  24   void SetCurrentGLTime(GLint64 current_time);
  25
  26   // Used to signal a disjoint occurred for disjoint timer queries.
  27   void SetDisjoint();
  28
  29   // GPUTimer fake queries which can be called multiple times.
  30   void ExpectGetErrorCalls(MockGLInterface& gl);
  31   void ExpectDisjointCalls(MockGLInterface& gl);
  32   void ExpectNoDisjointCalls(MockGLInterface& gl);
  33
  34   // GPUTimer fake queries which can only be called once per setup.
  35   void ExpectGPUTimerQuery(MockGLInterface& gl, bool elapsed_query);
  36   void ExpectOffsetCalculationQuery(MockGLInterface& gl);
  37   void ExpectNoOffsetCalculationQuery(MockGLInterface& gl);
  38
  39   // Fake GL Functions.
  40   void FakeGLGenQueries(GLsizei n, GLuint* ids);
  41   void FakeGLDeleteQueries(GLsizei n, const GLuint* ids);
  42   void FakeGLBeginQuery(GLenum target, GLuint id);
  43   void FakeGLEndQuery(GLenum target);
  44   void FakeGLGetQueryObjectuiv(GLuint id, GLenum pname, GLuint* params);
  45   void FakeGLQueryCounter(GLuint id, GLenum target);
  46   void FakeGLGetInteger64v(GLenum pname, GLint64 * data);
  47   void FakeGLGetQueryObjectui64v(GLuint id, GLenum pname, GLuint64* params);
  48   void FakeGLGetIntegerv(GLenum pname, GLint* params);
  49   GLenum FakeGLGetError();
  50
  51  protected:
  52   bool disjointed_ = false;
  53   GLint64 current_time_ = 0;
  54   GLuint next_query_id_ = 0;
  55   std::set<GLuint> allocated_queries_;
  56   struct QueryResult {
  57     enum QueryResultType {
  58       kQueryResultType_Invalid,
  59       kQueryResultType_TimeStamp,
  60       kQueryResultType_Elapsed
  61     } type_ = kQueryResultType_Invalid;
  62     GLint64 begin_time_ = 0;
  63     GLint64 value_ = 0;
  64   };
  65   std::map<GLuint, QueryResult> query_results_;
  66   struct ElapsedQuery {
  67     bool active_ = false;
  68     GLuint query_id_ = 0;
  69     GLint64 begin_time_ = 0;
  70
  71     void Reset() {
  72       active_ = false;
  73       query_id_ = 0;
  74       begin_time_ = 0;
  75     }
  76   };
  77   ElapsedQuery current_elapsed_query_;
  78 };
  79
  80 }  // namespace gfx
  81
  82 #endif  // UI_GL_GPU_TIMING_FAKE_H_