Start atlas

util/audio.h

@@ -11,9 +11,9 @@
 #include <stdlib.h>
 
 #define SAMPLE_RATE 44100
-#define NUM_SYNTH_VOICES 3
+#define NUM_SYNTH_VOICES 256
 
-typedef enum {
+typedef enum Waveform {
     WAVE_SINE,
     WAVE_SQUARE,
     WAVE_SAWTOOTH,
@@ -21,19 +21,24 @@ typedef enum {
     WAVE_NOISE
 } Waveform;
 
-typedef struct {
-    uint8_t volume;
-    uint16_t frequency;
-    uint8_t phase;
+typedef struct SynthVoice {
     Waveform waveform;
+    uint8_t phase;
+    uint16_t frequency;
+    uint8_t volume;
+    SDL_Rect sourceRect;
 } SynthVoice;
 
-typedef struct {
+typedef struct AudioData {
     SynthVoice synthVoices[NUM_SYNTH_VOICES];
+    SDL_Rect *playerRect;
+    float maxPanDistance;
 } AudioData;
 
 extern AudioData audioData;
 
 void audio_callback(void *userdata, Uint8 *stream, int len);
 
+uint16_t getAvailableChannel();
+
 #endif //RISCB_AUDIO_H