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C4SoundLoaders.h
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3  *
4  * Copyright (c) 2010-2016, The OpenClonk Team and contributors
5  *
6  * Distributed under the terms of the ISC license; see accompanying file
7  * "COPYING" for details.
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9  * "Clonk" is a registered trademark of Matthes Bender, used with permission.
10  * See accompanying file "TRADEMARK" for details.
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12  * To redistribute this file separately, substitute the full license texts
13  * for the above references.
14  */
15 
16 #ifndef INC_C4SoundLoaders
17 #define INC_C4SoundLoaders
18 
20 #include "platform/C4SoundSystem.h"
21 
22 namespace C4SoundLoaders
23 {
24  struct SoundInfo
25  {
26  public:
27  double sample_length;
28  uint32_t sample_rate;
29  std::vector<BYTE> sound_data;
30 #if AUDIO_TK == AUDIO_TK_OPENAL
31  ALenum format;
32 #endif
34 
35  SoundInfo(): sound_data() {}
36  };
37 
39  {
40  public:
41  static const int OPTION_Raw = 1;
42  public:
46  {
47  next = first_loader;
48  first_loader = this;
49  }
50  virtual ~SoundLoader() = default;
51  virtual bool ReadInfo(SoundInfo* info, BYTE* data, size_t data_length, uint32_t options = 0) = 0;
52  };
53 
54 #if AUDIO_TK == AUDIO_TK_OPENAL && defined(__APPLE__)
55  class AppleSoundLoader: public SoundLoader
56  {
57  public:
58  AppleSoundLoader(): SoundLoader() {}
59  virtual bool ReadInfo(SoundInfo* result, BYTE* data, size_t data_length, uint32_t);
60  protected:
61  static AppleSoundLoader singleton;
62  };
63 #endif
64 
65 #if AUDIO_TK == AUDIO_TK_OPENAL
66  class VorbisLoader: public SoundLoader
67  {
68  public: // needed by C4MusicFileOgg
70  {
71  public:
72  BYTE* data{nullptr};
73  size_t data_length{0};
74  size_t data_pos{0};
75  bool is_data_owned{false}; // if true, dtor will delete data
76  CompressedData(BYTE* data, size_t data_length): data(data), data_length(data_length) {}
77  CompressedData() = default;
79  { clear(); this->data=data; this->data_length=data_length; this->data_pos=0; is_data_owned=true; }
80 
82  void clear() { if (is_data_owned) delete [] data; data=nullptr; }
83  };
84  // load from compressed data held in memory buffer
85  static size_t mem_read_func(void* ptr, size_t byte_size, size_t size_to_read, void* datasource);
86  static int mem_seek_func(void* datasource, ogg_int64_t offset, int whence);
87  static int mem_close_func(void* datasource);
88  static long mem_tell_func(void* datasource);
89  // load directly from file
90  static size_t file_read_func(void* ptr, size_t byte_size, size_t size_to_read, void* datasource);
91  static int file_seek_func(void* datasource, ogg_int64_t offset, int whence);
92  static int file_close_func(void* datasource);
93  static long file_tell_func(void* datasource);
94  public:
95  bool ReadInfo(SoundInfo* result, BYTE* data, size_t data_length, uint32_t) override;
96  protected:
98  };
99 #ifndef __APPLE__
100  // non-apple wav loader: using ALUT
101  class WavLoader: public SoundLoader
102  {
103  public:
104  bool ReadInfo(SoundInfo* result, BYTE* data, size_t data_length, uint32_t) override;
105  protected:
107  };
108 #endif // apple
109 
110 #elif AUDIO_TK == AUDIO_TK_SDL_MIXER
111  class SDLMixerSoundLoader: public SoundLoader
112  {
113  public:
114  static SDLMixerSoundLoader singleton;
115  bool ReadInfo(SoundInfo* result, BYTE* data, size_t data_length, uint32_t) override;
116  };
117 #endif
118 }
119 
120 #endif
CompressedData(BYTE *data, size_t data_length)
static SoundLoader * first_loader
static int mem_seek_func(void *datasource, ogg_int64_t offset, int whence)
static long mem_tell_func(void *datasource)
static int mem_close_func(void *datasource)
uint8_t BYTE
static VorbisLoader singleton
virtual bool ReadInfo(SoundInfo *info, BYTE *data, size_t data_length, uint32_t options=0)=0
std::vector< BYTE > sound_data
struct Mix_Chunk * C4SoundHandle
static size_t mem_read_func(void *ptr, size_t byte_size, size_t size_to_read, void *datasource)
static const int OPTION_Raw
static size_t file_read_func(void *ptr, size_t byte_size, size_t size_to_read, void *datasource)
void SetOwnedData(BYTE *data, size_t data_length)
static WavLoader singleton
virtual ~SoundLoader()=default
static long file_tell_func(void *datasource)
static int file_seek_func(void *datasource, ogg_int64_t offset, int whence)
bool ReadInfo(SoundInfo *result, BYTE *data, size_t data_length, uint32_t) override
bool ReadInfo(SoundInfo *result, BYTE *data, size_t data_length, uint32_t) override
static int file_close_func(void *datasource)