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Used a library-reference method to calibrate lightpen drivers.

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The mouse reference is a pointer.  If it's NULL, the driver uses a default.  If it's non-NULL, then it points to a function that the driver can call.  That function will adjust the driver's calibration value.  It could ask the user to adjust the pen; or, it could read a file that holds a value from a previous calibration.

Application writers can choose how it's done: a function that's provided by the library, a custom function, or nothing.
This commit is contained in:
Greg King
2013-06-23 03:18:28 -04:00
parent 66ca781bb1
commit e63bf1cde1
11 changed files with 463 additions and 318 deletions
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42
testcode/lib/pen-test.c
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@@ -2,7 +2,7 @@
** Test program for lightpen drivers. Will work for the C64/C128.
**
** 2001-09-13, Ullrich von Bassewitz
** 2013-05-24, Greg King
** 2013-06-21, Greg King
**
*/
@@ -55,7 +55,7 @@
# define SPRITE0_PTR ((unsigned char *)0x07F8)
#endif
/* The lightpen sprite (an arrow) */
/* An arrow sprite */
static const unsigned char PenSprite[64] = {
0xFF, 0xFF, 0xFF,
0xFC, 0x00, 0x00,
@@ -113,9 +113,9 @@ static void DoWarning (void)
static void __fastcall__ ShowState (unsigned char Jailed, unsigned char Invisible)
/* Display jail and cursor states. */
{
cclearxy (0, 7, 40);
cclearxy (0, 7, 32);
gotoxy (0, 7);
cprintf ("Lightpen cursor is %svisible%s.", Invisible? "in" : "", Jailed? " and jailed" : "");
cprintf ("Pointer is %svisible%s.", Invisible? "in" : "", Jailed? " and jailed" : "");
}
@@ -128,8 +128,8 @@ int main (void)
unsigned char width, height;
bool Invisible = false, Done = false, Jailed = false;
/* Only the VIC-II has a lightpen connection. */
#ifdef __C128__
/* Only the VIC-IIe has a lightpen connection. */
videomode (VIDEOMODE_40x25);
#endif
@@ -154,10 +154,12 @@ int main (void)
memcpy (SPRITE0_DATA, PenSprite, sizeof PenSprite);
/* Set the VIC-II sprite pointer. */
*SPRITE0_PTR = (unsigned) SPRITE0_DATA / sizeof SPRITE0_DATA;
*SPRITE0_PTR = ((unsigned) SPRITE0_DATA & 0x3FFF) / sizeof SPRITE0_DATA;
/* Set the color of sprite 0. */
VIC.spr0_color = COLOR_BLACK;
pen_adjust ("inkwell.dat");
#endif
#if DYN_DRV
@@ -179,20 +181,16 @@ int main (void)
screensize (&width, &height);
top:
/* Print a help line. */
clrscr ();
/* revers (1); */
cputs (" d)ebug h)ide q)uit s)how j)ail ");
/* revers (0); */
/* Print a help line. */
cputs (" d)ebug h)ide q)uit s)how j)ail");
/* Put a cross at the center of the screen. */
gotoxy (width / 2 - 3, height / 2 - 1);
cprintf ("%3u,%3u\r\n%*s\xDB", width / 2 * 8 + 4, height / 2 * 8 + 4,
width / 2, "");
/* Custom driver debugging line */
cprintf ("\n\r\n Calibration X-offset = %u", (*(unsigned char *)0x3ff) * 2);
/* Expose the arrow. */
mouse_show ();
ShowState (Jailed, Invisible);
@@ -206,8 +204,20 @@ top:
gotoxy (0, 2);
cprintf (" X = %3d\r\n", info.pos.x);
cprintf (" Y = %3d\r\n", info.pos.y);
cprintf (" B1 = %c\r\n", (info.buttons & MOUSE_BTN_LEFT) ? 0x5F : '^');
cprintf (" B2 = %c", (info.buttons & MOUSE_BTN_RIGHT) ? 0x5F : '^');
cprintf (" B1 = %c\r\n", (info.buttons & MOUSE_BTN_LEFT) ?
#ifdef __CBM__
0x5F
#else
'v'
#endif
: '^');
cprintf (" B2 = %c", (info.buttons & MOUSE_BTN_RIGHT) ?
#ifdef __CBM__
0x5F
#else
'v'
#endif
: '^');
/* Handle user input. */
if (kbhit ()) {
@@ -277,6 +287,6 @@ top:
#endif
/* Say goodbye. */
cputsxy (0, 16, "Goodbye!");
cputsxy (0, height / 2 + 3, "Goodbye!");
return EXIT_SUCCESS;
}