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

Merged default into ultra-staging

  *  Created on: Oct 24, 2014
  *      Author: Andrew McPherson and Victor Zappi
  */
 
 
-#include "../../include/render.h"
-#include "../../include/RTAudio.h"	// to schedule lower prio parallel process
+#include <BeagleRT.h>	// to schedule lower prio parallel process
 #include <rtdk.h>
 #include <cmath>
 #include <stdio.h>
 #include "SampleData.h"
 

 
 
 extern float gCutFreq;
 
 
-// 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 numAudioChannels,
-					   int numMatrixFramesPerPeriod,
-					   int numAudioFramesPerPeriod,
-					   float matrixSampleRate, float audioSampleRate,
-					   void *userData)
+bool setup(BeagleRTContext *context, void *userData)
 {
 
 	// Retrieve a parameter passed in from the initAudio() call
 	gSampleData = *(SampleData *)userData;
 

 // 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 numMatrixFrames, int numAudioFrames, float *audioIn, float *audioOut,
-			uint16_t *matrixIn, uint16_t *matrixOut)
-{
-	for(int n = 0; n < numAudioFrames; n++) {
+void render(BeagleRTContext *context, void *userData)
+{
+	for(unsigned int n = 0; n < context->audioFrames; n++) {
 		float sample = 0;
 		float out = 0;
 
 		// If triggered...
 		if(gReadPtr != -1)

 		gLastX[1] = gLastX[0];
 		gLastX[0] = out;
 		gLastY[1] = gLastY[0];
 		gLastY[0] = out;
 
-		for(int channel = 0; channel < gNumAudioChannels; channel++)
-			audioOut[n * gNumAudioChannels + channel] = out;	// ...and put it in both left and right channel
+		for(unsigned int channel = 0; channel < context->audioChannels; channel++)
+			context->audioOut[n * context->audioChannels + channel] = out;	// ...and put it in both left and right channel
 
 	}
 
 	// Request that the lower-priority tasks run at next opportunity
-	scheduleAuxiliaryTask(gChangeCoeffTask);
-	scheduleAuxiliaryTask(gInputTask);
+	BeagleRT_scheduleAuxiliaryTask(gChangeCoeffTask);
+	BeagleRT_scheduleAuxiliaryTask(gInputTask);
 }
 
 // First calculation of coefficients
 
 void initialise_filter(float freq)

 // Initialise the auxiliary tasks
 // and print info
 
 bool initialise_aux_tasks()
 {
-	if((gChangeCoeffTask = createAuxiliaryTaskLoop(&check_coeff, 90, "beaglert-check-coeff")) == 0)
+	if((gChangeCoeffTask = BeagleRT_createAuxiliaryTask(&check_coeff, 90, "beaglert-check-coeff")) == 0)
 		return false;
 
-	if((gInputTask = createAuxiliaryTaskLoop(&read_input, 50, "beaglert-read-input")) == 0)
+	if((gInputTask = BeagleRT_createAuxiliaryTask(&read_input, 50, "beaglert-read-input")) == 0)
 		return false;
 
 	rt_printf("Press 'a' to trigger sample, 's' to stop\n");
 	rt_printf("Press 'z' to low down cut-off freq of 100 Hz, 'x' to raise it up\n");
 	rt_printf("Press 'q' to quit\n");

 	}
 }
 
 
 
-// cleanup_render() is called once at the end, after the audio has stopped.
-// Release any resources that were allocated in initialise_render().
-
-void cleanup_render()
+// cleanup() is called once at the end, after the audio has stopped.
+// Release any resources that were allocated in setup().
+
+void cleanup(BeagleRTContext *context, void *userData)
 {
 	delete[] gSampleData.samples;
 }