/****************************************************************************************
* Subroutine to check r10 and display accordingly
* x = x coordinate, y = y coordinate, val = r10's value
****************************************************************************************/
void VGA_Polling(int x,int y, int val){
/* output text message to the LCD */
LCD_cursor (0,0); // set LCD cursor location to top row
LCD_text ("Selected Effect :-\0");
VGA_box(0, 60, 319, 179, 0);
if (val == 1){
hollow_rect(20,90,100,20,0x7777);
hollow_rect(20,120,100,20,0x2222);
hollow_rect(20,150,100,20,0x2222);
hollow_rect(20,180,100,20,0x2222);
hollow_rect(20,210,100,20,0x2222);
LCD_cursor (0,1); // set LCD cursor location to bottom row
LCD_text ("Distortion \0");
LCD_cursor_off ();
VGA_text (10, 20, "Active effect is Distortion \0");
} else if (val == 2){
hollow_rect(20,90,100,20,0x2222);
hollow_rect(20,120,100,20,0x7777);
hollow_rect(20,150,100,20,0x2222);
hollow_rect(20,180,100,20,0x2222);
hollow_rect(20,210,100,20,0x2222);
VGA_text (10, 20, "Active effect is Echo \0");
LCD_cursor (0,1); // set LCD cursor location to bottom row
LCD_text ("Echo \0");
LCD_cursor_off ();
} else if (val == 3){
hollow_rect(20,90,100,20,0x2222);
hollow_rect(20,120,100,20,0x2222);
hollow_rect(20,150,100,20,0x7777);
hollow_rect(20,180,100,20,0x2222);
hollow_rect(20,210,100,20,0x2222);
VGA_text (10, 20, "Active effect is Kill Switch\0");
LCD_cursor (0,1); // set LCD cursor location to bottom row
LCD_text ("Kill Switch \0");
LCD_cursor_off ();
}else if (val == 4){
hollow_rect(20,90,100,20,0x2222);
hollow_rect(20,120,100,20,0x2222);
hollow_rect(20,150,100,20,0x2222);
hollow_rect(20,180,100,20,0x7777);
hollow_rect(20,210,100,20,0x2222);
VGA_text (10, 20, "Active effect is Bit Crusher\0");
LCD_cursor (0,1); // set LCD cursor location to bottom row
LCD_text ("Bit Crusher \0");
LCD_cursor_off ();
} else if (val == 5){
hollow_rect(20,90,100,20,0x2222);
hollow_rect(20,120,100,20,0x2222);
hollow_rect(20,150,100,20,0x2222);
hollow_rect(20,180,100,20,0x2222);
hollow_rect(20,210,100,20,0x7777);
VGA_text (10, 20, "Plain output activated \0");
LCD_cursor (0,1); // set LCD cursor location to bottom row
LCD_text ("Plain Audio \0");
LCD_cursor_off ();
}
}
void task1(void* pdata) {
char strTemp[2];
while (1) {
PS2();
VGA_box(0, 0, 319, 239, 0);
strTemp[0] = getKey();
printf("getKey: %c\n", strTemp[0]);
VGA_text(5, 5, strTemp);
VGA_box(0, 0, 319, 239, 0);
}
}
/****************************************************************************************
* Subroutine to write "Welcome" on the LCD cursor
* x = x coordinate, int y = y coordinate
****************************************************************************************/
void VGA_welcome(int x,int y)
{
char text[40] = "Welcome\0";
VGA_text (x, y, text);
}
/****************************************************************************************
* Subroutine to write The instructions on the LCD cursor
* x = x coordinate, int y = y coordinate
****************************************************************************************/
void VGA_Description(int x,int y)
{
char text[50] = "Make sure that the input and output is connected to DE2\0";
VGA_text (x, y++, text);
y=y+1;
VGA_text (x, y++,"Steps to get this thing working\0");
VGA_text (x, y++, "1)Use `s` for next\0");
VGA_text (x, y++, "2)Use `a` for previous\0");
VGA_text (x, y++, "3)Activate/Deactivate sound using KEY[3]\0");
VGA_text (x, 25, "Distortion \0");
VGA_text (x, 32, " Echo \0");
VGA_text (x, 40, "Kill Switch\0");
VGA_text (x, 47, "Bit Crusher\0");
VGA_text (x, 55, " Regular \0");
VGA_text (35, 24, "Works with High input volume and low \0");
VGA_text (35, 25, "output volume\0");
VGA_text (35, 31, "Press KEY[1] to start and stop recording\0");
VGA_text (35, 33, "Press KEY[2] to terminate loop and resume\0");
VGA_text (35, 34, "normal playback\0");
VGA_text (35, 39, "Keep KEY[2] pressed to kill audio\0");
VGA_text (35, 46, "No instructions here :)\0");
VGA_text (35, 54, "Plain audio without any processing \0");
LCD_cursor (0,0); // set LCD cursor location to top row
LCD_text ("whats up \0");
LCD_cursor (0,1); // set LCD cursor location to top row
LCD_text ("Lets Get Started\0");
LCD_cursor_off (); // turn off the LCD cursor
}
void display_enable(int check){
if(check)
VGA_text (50, 20, "Sound is active \0");
else
VGA_text (50, 20, "Sound is not active\0");
}
