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comparison src/system.h @ 24:4c9dbfa30a66

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Implemented audio
author Michael Pavone <pavone@retrodev.com>
date Thu, 31 Mar 2016 00:07:37 -0700
parents ae58e7c3c328
children
comparison
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23:a085f17b79e9 24:4c9dbfa30a66
1 #ifndef SYSTEM_H_ 1 #ifndef SYSTEM_H_
2 #define SYSTEM_H_ 2 #define SYSTEM_H_
3 3
4 int system_init(int width, int height); 4 //initializes audio and video output with the given parameters
5 int system_init(int width, int height, int desired_sample_rate);
6 //Should be called once per frame to get a pointer to the output buffer at the start of rendering
5 uint16_t *system_get_framebuffer(int *pitch); 7 uint16_t *system_get_framebuffer(int *pitch);
8 //Should be called once per frame at the competion of rendering
9 //The pointer returned by system_get_framebuffer should be discarded after calling this function
6 void system_framebuffer_updated(); 10 void system_framebuffer_updated();
11 //Pumps the event queue and processes events
7 void system_poll_events(); 12 void system_poll_events();
13 //Presents an audio buffer to the system for playback
14 //Will block until the system is ready for more samples
15 //The buffer passed to this function should not be used again
16 //by the caller until the next call to system_present_audio
17 void system_present_audio(int16_t *buffer);
18 //Returns the audio sample rate, which may be different than what was requested
19 int system_sample_rate();
20 //Returns the number of samples that should be provided in a call to system_present_audio
21 int system_buffer_size();
8 22
9 #endif //SYSTEM_H_ 23 #endif //SYSTEM_H_