Diff: OneBitSound/SoundBlock.h

Revision:

1:9ff7384171ec

diff -r 01829868570e -r 9ff7384171ec OneBitSound/SoundBlock.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OneBitSound/SoundBlock.h	Sun Jan 04 03:05:13 2015 +0000
@@ -0,0 +1,65 @@
+#ifndef __SOUNDBLOCK_H__
+#define __SOUNDBLOCK_H__
+
+#define US_PER_BIT  32
+
+// Fix16 representation of 1000000/32
+#define FREQ_NUMERATOR 0x7a120000
+
+
+// Fix16 representation of 1000000/24
+//#define FREQ_NUMERATOR 0xa2c20000
+
+#define TONE(stepCount, stepDuration, pitch, pitchSlide, duty, dutySlide) SoundBlock(SoundBlock::Tone, stepCount, stepDuration, pitch, pitchSlide, duty, dutySlide)
+#define NOISE(stepCount, stepDuration, pitch, pitchSlide) SoundBlock(SoundBlock::Noise, stepCount, stepDuration, pitch, pitchSlide, 128, 0)
+#define PAUSE(stepCount, stepDuration) SoundBlock(SoundBlock::Pause, stepCount, stepDuration, 0, 0, 0, 0)
+
+#define CREATE_EFFECT(name) \
+static const SoundBlock name[] = \
+{ \
+
+#define END_EFFECT \
+};
+
+#define EFFECT(name) name, sizeof(name)/sizeof(SoundBlock)
+
+class SoundChannel;
+
+class SoundBlock
+{
+    public:
+        enum ToneType {Tone, Noise, Pause};
+        
+    public:
+        SoundBlock(ToneType toneType, uint16_t stepCount, uint16_t stepDuration, uint16_t pitch, int16_t pitchSlide, uint8_t duty, int8_t dutySlide);
+        SoundBlock(ToneType toneType, uint16_t stepCount, uint16_t stepDuration);
+        
+    protected:
+        SoundBlock();
+    
+    private:
+        void initialize(ToneType toneType, uint16_t stepCount, uint16_t stepDuration, uint16_t pitch, int16_t pitchSlide, uint8_t duty, int8_t dutySlide);
+        
+    protected:
+        inline ToneType getToneType() { return _toneType; }
+        inline uint16_t getStepCount() { return _stepCount; }
+        inline uint16_t getStepDuration() { return _stepDuration; }
+        inline fix16_t getPitch(fix16_t offset) { return fix16_div(FREQ_NUMERATOR, _pitch + offset); }
+        inline fix16_t getPitchSlide() {return _pitchSlide; }
+        inline uint8_t getDuty(int8_t offset) { return (uint8_t)(_duty + offset); }
+        inline int8_t getDutySlide() { return _dutySlide; }
+        
+    private:
+        ToneType    _toneType;
+        uint16_t    _stepCount;
+        uint16_t    _stepDuration;
+        fix16_t     _pitch;
+        fix16_t     _pitchSlide;
+        uint8_t     _duty;
+        int8_t      _dutySlide;
+        
+    friend class SoundChannel;
+};
+#endif //__SOUNDBLOCK_H__
+
+