/* TESTVGA.C
 *
 * This program tests the functionality of the VGA256.C functions
 */
#include <conio.h>
#include <stdlib.h>
#include <stdio.h>

/* Enable this line for compile with at the command line */
#include "include\vga256.h"

/* Enable this line for compile within the IDE */
/* #include "source\vga256.c" */

int main(void)
{
    int i;
    long count;
    char string[41];

    SetVideoMode(VGA256);

    while (!kbhit())
        SetPixel(rand()%320, rand()%200, rand()%256);
    getch();

    FillScreen(0);

    Gputs(0, 0, "Gary Neal Jr.", 4, -1);
    getch();

    FillScreen(0);

    while (!kbhit())
        Line(rand()%320, rand()%200, rand()%320, rand()%200, rand()%256);
    getch();

    FillScreen(0);

    while (!kbhit())
        Circle(rand()%320, rand()%200, rand()%100, rand()%256);
    getch();

    FillScreen(0);

    Gputs(0, 0, "Counting vertical retrace periods.", 15, 0);
    count = 0L;
    while(!kbhit()) {
        WaitForVertRetrace();
        count++;
        sprintf(string, "%ld vertical retraces.", count);
        Gputs(0, 32, string, 15, 0);
    }
    getch();

    FillScreen(0);

    Gputs(0, 0, "Opening Cache...", 4, -1);
    if (!InitCache(ScreenHeight))
        Gputs(0, 8, "Failed to open cache...press a key", 15, -1);
    else {
        Gputs(0, 8, "Cache successfully opened...", 15, -1);
        Gputs(0, 16, "Now setting dots...", 15, -1);
        for (i=0; i<300; i++)
            SetPixelC(rand()%ScreenWidth, rand()%cacheLines, rand()%256);
        Gputs(0, 24, "Press a key to view cache...", 15, -1);
        getch();
        ShowCache();
        getch();
        Gputs(0, 0, "Clearing and writing lines to cache", 15, 0);
        FillScreenC(0);
        for (i=0; i<300; i++)
            LineC(rand()%320, rand()%200, rand()%320, rand()%200, rand()%256);
        Gputs(0, 24, "Press a key to view cache...", 15, -1);
        getch();
        ShowCache();
        getch();
        Gputs(0, 0, "Clearing and writing circles to cache", 15, 0);
        FillScreenC(0);
        for (i=0; i<300; i++)
            CircleC(rand()%320, rand()%200, rand()%100, rand()%256);
        Gputs(0, 24, "Press a key to view cache...", 15, -1);
        getch();
        ShowCache();
        getch();
        Gputs(0, 0, "Clearing and writing text to cache", 15, 0);
        FillScreenC(0);
        GputsC(0, 0, "This was written to cache.", 4, 0);
        GputsC(0, 8, "Cache enables you to update offscreen...", 15, 0);
        GputsC(0, 16, "and view when update is complete.", 15, 0);
        GputsC(0, 32, "Helping to eliminate screen flicker.", 14, 0);
        Gputs(0, 24, "Press a key to view cache...", 15, -1);
        getch();
        ShowCache();
        getch();
        FillScreen(0);
        Gputs(0, 0, "That's all folks!", 15, 0);
        DeleteCache();
    }
    getch();

    SetVideoMode(TEXT_MODE);
    return 0;
}