ppapi/tests/test_audio.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 PAPPI_TESTS_TEST_AUDIO_H_
   6 #define PAPPI_TESTS_TEST_AUDIO_H_
   7
   8 #include <string>
   9
  10 #include "ppapi/c/ppb_audio.h"
  11 #include "ppapi/c/ppb_audio_config.h"
  12 #include "ppapi/c/ppb_core.h"
  13 #include "ppapi/tests/test_case.h"
  14
  15 class TestAudio : public TestCase {
  16  public:
  17   explicit TestAudio(TestingInstance* instance);
  18   ~TestAudio();
  19
  20   // TestCase implementation.
  21   virtual bool Init();
  22   virtual void RunTests(const std::string& filter);
  23
  24  private:
  25   std::string TestCreation();
  26   std::string TestDestroyNoStop();
  27   std::string TestFailures();
  28   std::string TestAudioCallback1();
  29   std::string TestAudioCallback2();
  30   std::string TestAudioCallback3();
  31
  32   // Calls |audio_callback_method_| (where |user_data| is "this").
  33   static void AudioCallbackTrampoline(void* sample_buffer,
  34                                       uint32_t buffer_size_in_bytes,
  35                                       void* user_data);
  36
  37   typedef void (TestAudio::*AudioCallbackMethod)(void* sample_buffer,
  38                                                  uint32_t buffer_size_in_bytes);
  39
  40   // Method called by |AudioCallbackTrampoline()|. Set only when the callback
  41   // can't be running (before |StartPlayback()|, after |StopPlayback()| or
  42   // releasing the last reference to the audio resource).
  43   AudioCallbackMethod audio_callback_method_;
  44
  45   // An |AudioCallbackMethod| that just clears |sample_buffer|.
  46   void AudioCallbackTrivial(void* sample_buffer, uint32_t buffer_size_in_bytes);
  47
  48   // |AudioCallbackMethod| used by |TestAudioCallbackN()|.
  49   void AudioCallbackTest(void* sample_buffer, uint32_t buffer_size_in_bytes);
  50
  51   // Used by |TestAudioCallbackN()|.
  52   NestedEvent audio_callback_event_;
  53
  54   bool test_done_;
  55   bool callback_fired_;
  56
  57   // Raw C-level interfaces, set in |Init()|; do not modify them elsewhere.
  58   const PPB_Audio* audio_interface_;
  59   const PPB_AudioConfig* audio_config_interface_;
  60   const PPB_Core* core_interface_;
  61 };
  62
  63 #endif  // PAPPI_TESTS_TEST_AUDIO_H_