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71eac5acd3
don't use adlib driver if sound initialization fails, simon1 savedialog works svn-id: r3955
158 lines
3.1 KiB
C++
158 lines
3.1 KiB
C++
#ifndef _mixer_h_included
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#define _mixer_h_included
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typedef uint32 PlayingSoundHandle;
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class SoundMixer {
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private:
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class Channel {
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public:
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virtual void mix(int16 *data, uint len) = 0;
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virtual void destroy() = 0;
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};
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class Channel_RAW : public Channel {
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SoundMixer *_mixer;
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void *_ptr;
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uint32 _pos;
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uint32 _size;
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uint32 _fp_speed;
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uint32 _fp_pos;
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byte _flags;
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public:
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void mix(int16 *data, uint len);
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void destroy();
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Channel_RAW(SoundMixer *mixer, void *sound, uint32 size, uint rate, byte flags);
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};
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#ifdef COMPRESSED_SOUND_FILE
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class Channel_RAW : public Channel {
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SoundMixer *_mixer;
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public:
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void mix(int16 *data, uint len);
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void destroy();
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Channel_MP3(SoundMixer *mixer, void *sound, uint rate);
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};
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#endif
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static void on_generate_samples(void *s, byte *samples, int len);
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public:
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typedef void PremixProc(void *param, int16 *data, uint len);
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uint _output_rate;
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int16 *_volume_table;
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enum {
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NUM_CHANNELS = 16,
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};
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void *_premix_param;
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PremixProc *_premix_proc;
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Channel *_channels[NUM_CHANNELS];
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PlayingSoundHandle *_handles[NUM_CHANNELS];
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void insert(PlayingSoundHandle *handle, Channel *chan);
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void uninsert(Channel *chan);
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/* start playing a raw sound */
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enum {
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FLAG_AUTOFREE = 1,
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FLAG_UNSIGNED = 2, /* unsigned samples */
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FLAG_FILE = 4, /* sound is a FILE * that's read from */
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};
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void play_raw(PlayingSoundHandle *handle, void *sound, uint32 size, uint rate, byte flags);
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/* Premix procedure, useful when using fmopl adlib */
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void setup_premix(void *param, PremixProc *proc);
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/* mix */
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void mix(int16 *buf, uint len);
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/* stop all currently playing sounds */
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void stop_all();
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/* stop playing a specific sound */
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void stop(PlayingSoundHandle psh);
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/* is any channel active? */
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bool has_active_channel();
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/* bind to the OSystem object => mixer will be
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* invoked automatically when samples need
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* to be generated */
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bool bind_to_system(OSystem *syst);
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/* set the volume, 0-256 */
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void set_volume(int volume);
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};
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struct MP3OffsetTable { /* Compressed Sound (.SO3) */
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int org_offset;
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int new_offset;
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int num_tags;
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int compressed_size;
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};
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#if 0
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typedef enum { /* Mixer types */
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MIXER_STANDARD,
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MIXER_MP3,
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MIXER_MP3_CDMUSIC
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} MixerType;
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struct MixerChannel { /* Mixer Channel */
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void *_sfx_sound;
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MixerType type;
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union {
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struct {
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uint32 _sfx_pos;
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uint32 _sfx_size;
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uint32 _sfx_fp_speed;
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uint32 _sfx_fp_pos;
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} standard;
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#ifdef COMPRESSED_SOUND_FILE
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struct {
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struct mad_stream stream;
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struct mad_frame frame;
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struct mad_synth synth;
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uint32 silence_cut;
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uint32 pos_in_frame;
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uint32 position;
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uint32 size;
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} mp3;
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struct {
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struct mad_stream stream;
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struct mad_frame frame;
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struct mad_synth synth;
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uint32 pos_in_frame;
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uint32 position;
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uint32 size;
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uint32 buffer_size;
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mad_timer_t duration;
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bool playing;
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FILE *file;
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} mp3_cdmusic;
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#endif
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} sound_data;
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void mix(int16 *data, uint32 len);
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void clear();
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};
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#endif
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#endif /* _mixer_h_included */
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