initial commit

audio_buffer_manager_class.cpp

@@ -0,0 +1,58 @@
+#include <SDL2/SDL.h>
+#include <SDL2/SDL_image.h>
+#include <SDL2/SDL_timer.h>
+#include <SDL2/SDL_ttf.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <cmath>
+#include <unistd.h>
+#include <iostream>
+#include <chrono>
+#include <pulse/simple.h>
+#include <pulse/error.h>
+#include "scope.h"
+
+audio_buffer_manager_class::audio_buffer_manager_class()
+  {
+  my_formatted_audio_buffer = NULL;
+  }
+
+audio_buffer_manager_class::~audio_buffer_manager_class()
+  {
+  if (my_formatted_audio_buffer != NULL)
+    {
+    free(my_formatted_audio_buffer);
+    }
+  }
+
+int audio_buffer_manager_class::initialize_audio(int horizontal_size,
+  int vertical_size, Sint16 *main_buffer)
+  {
+  my_formatted_audio_buffer = (int *)malloc ((sizeof(int) * AUDIO_BUFFER_SIZE));
+  if (my_formatted_audio_buffer == NULL)
+    {
+    printf ("cannot allocate formatted audio audio buffer\n");
+    perror ("error is");
+    return 1;
+    }
+  my_audio_horizontal_size = horizontal_size;
+  my_audio_vertical_size = vertical_size; 
+  my_main_buffer = main_buffer;
+  return 0;
+  }
+
+int *audio_buffer_manager_class::process_audio()
+  {
+  my_read_audio_index = 0;
+
+  // Transform Sint16 to int for each element
+  for (my_read_audio_index = 0; my_read_audio_index < my_audio_horizontal_size;
+    my_read_audio_index += 1)
+     {
+     audio_holding = *(my_main_buffer + my_read_audio_index);
+     *(my_formatted_audio_buffer + my_read_audio_index) = (int)audio_holding;
+     }
+
+  return my_formatted_audio_buffer;
+  }
+