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sound-scope/scope.h
Mark Allyn 5df346e342 initial commit
2026-03-27 10:26:47 -07:00

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#ifndef SCOPE
#define SCOPE
#include <pulse/simple.h>
#include <pulse/error.h>
#include <fftw3.h>
#define SAMPLE_RATE 44100
#define FRAME_TIME 17
// this must be in power of 2 for fourier transform
#define READ_BUFFER_SIZE 2048
#define FFT_NUMBER_READ_BUFFERS 4
#define FFT_BUFFER_SIZE (READ_BUFFER_SIZE * FFT_NUMBER_READ_BUFFERS)
#define MAIN_BUFFER_SIZE 8192
#define AUDIO_BUFFER_SIZE 6000
#define FFT_START_BUCKET 0
#define MAIN_VOLUME .1
#define SPECTRUM_VOLUME .1
#define PIANO_SIZE_MULTIPLY .65
#define KEYBOARD_POSITION_X 50
#define KEYBOARD_POSITION_Y 10
#define OCTIVE_POSITION_X 800
#define OCTIVE_POSITION_Y 10
#define NUMBER_KEY_LIGHTS 12
#define NUMBER_OCTIVE_LIGHTS 8
#define RADIANS_PER_SAMPLE_AT_1_HZ (double)6.28319/(double)SAMPLE_RATE
#define NUMBER_OCTIVES 6
#define BUCKETS_PER_NOTE 2
#define NOTES_PER_OCTIVE 12
#define BUCKETS_PER_OCTIVE BUCKETS_PER_NOTE*NOTES_PER_OCTIVE
#define TOTAL_BUCKETS BUCKETS_PER_OCTIVE*NUMBER_OCTIVES
#define TOTAL_NOTES NOTES_PER_OCTIVE*NUMBER_OCTIVES
#define Q_QUALITY 6
#define FIRST_FREQUENCY 32
#define PIANO_FULL_ARRAY_SIZE 10000
//Structure for piano notes
struct piano_note_struct {
double note_strength;
int keyboard_key;
int octive;;
};
//Structure for processing buckets
struct bucket_data_struct {
double bucket_frequency;
double bucket_strength;
int buffer_size;
double radians_per_sample;
struct piano_note_struct *this_piano_note;
};
// Structure used by both piano and main classes
struct piano_data_struct {
int keyboard_key;
int octive;
int done;
};
class main_window_class {
public:
main_window_class (int x_main_window_size, int y_main_window_size);
private:
SDL_Window *window_for_main;
SDL_Renderer *renderer_for_main;
int call_result;
};
class audio_window_class {
public:
audio_window_class (int x_main_window_size, int y_main_window_size);
int draw_trace(int *audio_data, int audio_data_size);
int get_max_audio_trace_width();
int get_max_audio_trace_height();
private:
int x_audio_window_position;
int y_audio_window_position;
int x_audio_window_size;
int y_audio_window_size;
int x_audio_window_trace_base;
int y_audio_window_trace_base;
int max_audio_trace_width;
int max_audio_trace_height;
SDL_Window *window_for_audio;
SDL_Renderer *renderer_for_audio;
SDL_Rect rect_for_audio;
SDL_Texture *texture_for_audio;
SDL_Surface *surface_for_audio;
TTF_Font *font_for_audio;
SDL_Color color_for_audio;
};
class spectrum_window_class {
public:
spectrum_window_class (int x_main_window_size, int y_main_window_size);
int draw_trace(int *spectrum_data, int spectrum_data_size);
int get_max_spectrum_trace_width();
int get_max_spectrum_trace_height();
private:
int x_spectrum_window_position;
int y_spectrum_window_position;
int x_spectrum_window_size;
int y_spectrum_window_size;
int x_spectrum_window_trace_base;
int y_spectrum_window_trace_base;
int max_spectrum_trace_width;
int max_spectrum_trace_height;
SDL_Window *window_for_spectrum;
SDL_Renderer *renderer_for_spectrum;
SDL_Rect rect_for_spectrum;
SDL_Texture *texture_for_spectrum;
SDL_Surface *surface_for_spectrum;
TTF_Font *font_for_spectrum;
SDL_Color color_for_spectrum;
};
class piano_window_class {
public:
piano_window_class (int x_main_window_size, int y_main_window_size);
int draw_trace(piano_data_struct *input_piano_data);
int get_max_piano_trace_width();
int get_max_piano_trace_height();
private:
const char* keyboard_lights[12] = {
"/home/maallyn/sound-scope/sdl2/fft/keyboard-key1.bmp",
"/home/maallyn/sound-scope/sdl2/fft/keyboard-key2.bmp",
"/home/maallyn/sound-scope/sdl2/fft/keyboard-key3.bmp",
"/home/maallyn/sound-scope/sdl2/fft/keyboard-key4.bmp",
"/home/maallyn/sound-scope/sdl2/fft/keyboard-key5.bmp",
"/home/maallyn/sound-scope/sdl2/fft/keyboard-key6.bmp",
"/home/maallyn/sound-scope/sdl2/fft/keyboard-key7.bmp",
"/home/maallyn/sound-scope/sdl2/fft/keyboard-key8.bmp",
"/home/maallyn/sound-scope/sdl2/fft/keyboard-key9.bmp",
"/home/maallyn/sound-scope/sdl2/fft/keyboard-key10.bmp",
"/home/maallyn/sound-scope/sdl2/fft/keyboard-key11.bmp",
"/home/maallyn/sound-scope/sdl2/fft/keyboard-key12.bmp"};
const char* octive_lights[8] = {
"/home/maallyn/sound-scope/sdl2/fft/octive-1.bmp",
"/home/maallyn/sound-scope/sdl2/fft/octive-2.bmp",
"/home/maallyn/sound-scope/sdl2/fft/octive-3.bmp",
"/home/maallyn/sound-scope/sdl2/fft/octive-4.bmp",
"/home/maallyn/sound-scope/sdl2/fft/octive-5.bmp",
"/home/maallyn/sound-scope/sdl2/fft/octive-6.bmp",
"/home/maallyn/sound-scope/sdl2/fft/octive-7.bmp",
"/home/maallyn/sound-scope/sdl2/fft/octive-8.bmp"};
struct piano_data_struct *my_piano_data;
int x_piano_window_position;
int y_piano_window_position;
int x_piano_window_size;
int y_piano_window_size;
int x_piano_window_trace_base;
int y_piano_window_trace_base;
int max_piano_trace_width;
int max_piano_trace_height;
int function_result;
int loop_counter;
SDL_Window *window_for_piano;
SDL_Renderer *renderer_for_piano;
SDL_Rect rect_for_piano_text;
SDL_Texture *texture_for_piano;
SDL_Surface *surface_for_piano_text;
SDL_Surface *surface_key_blank;
SDL_Surface *surface_keys[12];
SDL_Surface *surface_octive_blank;
SDL_Surface *surface_octives[8];
SDL_Texture *texture_key_blank;
SDL_Texture *texture_keys[12];
SDL_Texture *texture_octive_blank;
SDL_Texture *texture_octives[8];
SDL_Texture *texture_current_piano_light;
SDL_Texture *texture_current_octive_light;
SDL_Rect rect_for_keys;
SDL_Rect rect_for_octives;
TTF_Font *font_for_piano;
SDL_Color color_for_piano;
SDL_Rect rect_for_piano_image;
SDL_Surface *piano_image_surface;
SDL_Texture *texture_of_piano_image;
};
class main_buffer_manager_class {
public:
main_buffer_manager_class();
~main_buffer_manager_class();
Sint16 *initial_preparation();
Sint16 *read_main_buffer();
private:
Sint16 *my_read_main_buffer;
int pulse_error;
int function_return;
pa_simple *pulse_s = NULL;
int main_buffer_index;
Sint16 main_buffer_hold;
};
class audio_buffer_manager_class {
public:
audio_buffer_manager_class();
~audio_buffer_manager_class();
int initialize_audio(int horizontal_size,int vertical_size, Sint16 *main_buffer);
int *process_audio();
private:
Sint16 *my_main_buffer;
int *my_formatted_audio_buffer;
int my_audio_horizontal_size;
int my_audio_vertical_size;
int my_read_audio_index;
int function_return;
Sint16 audio_holding;
};
class spectrum_buffer_manager_class {
public:
spectrum_buffer_manager_class();
~spectrum_buffer_manager_class();
int initialize_spectrum(int horizontal_size,int vertical_size, Sint16 *main_buffer);
int *process_spectrum();
private:
Sint16 *my_main_buffer;
int *my_formatted_spectrum_buffer;
int my_spectrum_horizontal_size;
int my_spectrum_vertical_size;
int my_read_spectrum_index;
int my_output_fft_buffer_index;
int function_return;
int read_buffer_counter;
Sint16 spectrum_holding;
fftw_plan my_fftw_plan;
double *input_fftw;
double *input_fftw_write_position;
Sint16 main_buffer_hold;
fftw_complex *output_fftw;
};
class piano_process_class {
public:
piano_process_class();
~piano_process_class();
int initialize_piano_data();
struct piano_data_struct *process_piano_data(Sint16 *input_buffer);
double goertzel(int num_samples, int target_frequency, int sample_rate, Sint16 *input_buffer);
private:
struct piano_data_struct my_piano_data_struct;
Sint16 *local_main_buffer;
int ctr1;
struct piano_note_struct my_piano_notes[TOTAL_NOTES];
struct bucket_data_struct my_bucket_data[TOTAL_BUCKETS];
Sint16 full_size_buffer[PIANO_FULL_ARRAY_SIZE];
int main_buffer_read_count;
};
#endif
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