Mercurial > repos > blastem
annotate render_audio.h @ 2283:6f6f21d0c396
Fix missing address masks on some VRAM reads
author | Michael Pavone <pavone@retrodev.com> |
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date | Mon, 09 Jan 2023 00:15:26 -0800 |
parents | cfd53c94fffb |
children | b3832f73444f |
rev | line source |
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1865
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Split generic part of audio code into a separate file so it can be used in other targets besides SDL
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1 #ifndef RENDER_AUDIO_H_ |
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2 #define RENDER_AUDIO_H_ |
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3 |
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4 #include <stdint.h> |
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5 typedef enum { |
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6 RENDER_AUDIO_S16, |
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7 RENDER_AUDIO_FLOAT, |
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8 RENDER_AUDIO_UNKNOWN |
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9 } render_audio_format; |
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10 |
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11 typedef struct { |
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12 const char *name; |
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13 void *opaque; |
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14 int16_t *front; |
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15 int16_t *back; |
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16 double dt; |
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17 uint64_t buffer_fraction; |
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18 uint64_t buffer_inc; |
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19 float gain_mult; |
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20 uint32_t buffer_pos; |
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21 uint32_t read_start; |
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22 uint32_t read_end; |
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23 uint32_t lowpass_alpha; |
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24 uint32_t mask; |
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25 int16_t last_left; |
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26 int16_t last_right; |
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27 uint8_t num_channels; |
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28 uint8_t front_populated; |
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29 } audio_source; |
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30 |
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31 //public interface |
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32 audio_source *render_audio_source(const char *name, uint64_t master_clock, uint64_t sample_divider, uint8_t channels); |
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33 void render_audio_source_gaindb(audio_source *src, float gain); |
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34 void render_audio_adjust_clock(audio_source *src, uint64_t master_clock, uint64_t sample_divider); |
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35 void render_put_mono_sample(audio_source *src, int16_t value); |
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36 void render_put_stereo_sample(audio_source *src, int16_t left, int16_t right); |
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37 void render_pause_source(audio_source *src); |
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38 void render_resume_source(audio_source *src); |
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39 void render_free_source(audio_source *src); |
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40 //interface for render backends |
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41 void render_audio_initialized(render_audio_format format, uint32_t rate, uint8_t channels, uint32_t buffer_size, int sample_size); |
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42 int mix_and_convert(unsigned char *byte_stream, int len, int *min_remaining_out); |
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43 uint8_t all_sources_ready(void); |
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44 void render_audio_adjust_speed(float adjust_ratio); |
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45 //to be implemented by render backend |
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46 uint8_t render_is_audio_sync(void); |
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47 void render_buffer_consumed(audio_source *src); |
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48 void *render_new_audio_opaque(void); |
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49 void render_free_audio_opaque(void *opaque); |
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50 void render_lock_audio(void); |
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51 void render_unlock_audio(void); |
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52 uint32_t render_min_buffered(void); |
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53 uint32_t render_audio_syncs_per_sec(void); |
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54 void render_audio_created(audio_source *src); |
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55 void render_do_audio_ready(audio_source *src); |
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56 void render_source_paused(audio_source *src, uint8_t remaining_sources); |
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57 void render_source_resumed(audio_source *src); |
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58 #endif //RENDER_AUDIO_H_ |