comparison projects/basic/render.cpp @ 108:3068421c0737 ultra-staging

Merged default into ultra-staging

  *  Created on: Oct 24, 2014
  *      Author: parallels
  */
 
 
-#include "../../include/render.h"
+#include <BeagleRT.h>
 #include <cmath>
 
-float gFrequency;
+float gFrequency = 440.0;
 float gPhase;
 float gInverseSampleRate;
 
-// initialise_render() is called once before the audio rendering starts.
+// setup() is called once before the audio rendering starts.
 // Use it to perform any initialisation and allocation which is dependent
 // on the period size or sample rate.
 //
 // userData holds an opaque pointer to a data structure that was passed
 // in from the call to initAudio().
 //
 // Return true on success; returning false halts the program.
 
-bool initialise_render(int numMatrixChannels,  int numDigitalChannels, int numAudioChannels,
-					   int numMatrixFramesPerPeriod,
-					   int numAudioFramesPerPeriod,
-					   float matrixSampleRate, float audioSampleRate,
-					   void *userData, RTAudioSettings* settings)
+bool setup(BeagleRTContext *context, void *userData)
 {
 	// Retrieve a parameter passed in from the initAudio() call
-	gFrequency = *(float *)userData;
+	if(userData != 0)
+		gFrequency = *(float *)userData;
 
-	gInverseSampleRate = 1.0 / audioSampleRate;
+	gInverseSampleRate = 1.0 / context->audioSampleRate;
 	gPhase = 0.0;
 
 	return true;
 }
 
 // render() is called regularly at the highest priority by the audio engine.
 // Input and output are given from the audio hardware and the other
 // ADCs and DACs (if available). If only audio is available, numMatrixFrames
 // will be 0.
 
-void render(int numAnalogFrames, int numAudioFrames, int numDigitalFrames, float *audioIn, float *audioOut,
-		float *analogIn, float *analogOut, uint32_t *digital)
+void render(BeagleRTContext *context, void *userData)
 {
-	for(int n = 0; n < numAudioFrames; n++) {
+	for(unsigned int n = 0; n < context->audioFrames; n++) {
 		float out = 0.8f * sinf(gPhase);
 		gPhase += 2.0 * M_PI * gFrequency * gInverseSampleRate;
 		if(gPhase > 2.0 * M_PI)
 			gPhase -= 2.0 * M_PI;
 
-		for(int channel = 0; channel < gNumAudioChannels; channel++)
-			audioOut[n * gNumAudioChannels + channel] = out;
+		for(unsigned int channel = 0; channel < context->audioChannels; channel++)
+			context->audioOut[n * context->audioChannels + channel] = out;
 	}
 }
 
-// cleanup_render() is called once at the end, after the audio has stopped.
-// Release any resources that were allocated in initialise_render().
+// cleanup() is called once at the end, after the audio has stopped.
+// Release any resources that were allocated in setup().
 
-void cleanup_render()
+void cleanup(BeagleRTContext *context, void *userData)
 {
 
 }