comparison projects/filter_IIR/render.cpp @ 14:06f93bef7dd2

Updated remaining examples to new API

 #include <stdio.h>
 #include "SampleData.h"
 
 SampleData gSampleData;	// User defined structure to get complex data from main
 int gReadPtr;			// Position of last read sample from file
-int gNumChannels;
 
 // filter vars
 float gLastX[2];
 float gLastY[2];
 double lb0, lb1, lb2, la1, la2 = 0.0;

 // 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 numChannels, int numMatrixFramesPerPeriod,
-					   int numAudioFramesPerPeriod, float matrixSampleRate,
-					   float audioSampleRate, void *userData)
+bool initialise_render(int numMatrixChannels, int numAudioChannels,
+					   int numMatrixFramesPerPeriod,
+					   int numAudioFramesPerPeriod,
+					   float matrixSampleRate, float audioSampleRate,
+					   void *userData)
 {
 
 	// Retrieve a parameter passed in from the initAudio() call
 	gSampleData = *(SampleData *)userData;
 
 	gReadPtr = -1;
-	gNumChannels = numChannels;
 
 	initialise_filter(200);
 
 	// Initialise auxiliary tasks
 	if(!initialise_aux_tasks())

 		gLastX[1] = gLastX[0];
 		gLastX[0] = out;
 		gLastY[1] = gLastY[0];
 		gLastY[0] = out;
 
-		for(int channel = 0; channel < gNumChannels; channel++)
-			audioOut[n * gNumChannels + channel] = out;	// ...and put it in both left and right channel
+		for(int channel = 0; channel < gNumAudioChannels; channel++)
+			audioOut[n * gNumAudioChannels + channel] = out;	// ...and put it in both left and right channel
 
 	}
 
 	// Request that the lower-priority tasks run at next opportunity
 	scheduleAuxiliaryTask(gChangeCoeffTask);