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7f52a770d9
So far the joy_masks array allowed several joystick drivers for a single target to each have different joy_read return values. However this meant that every call to joy_read implied an additional joy_masks lookup to post-process the return value. Given that almost all targets only come with a single joystick driver this seems an inappropriate overhead. Therefore now the target header files contain constants matching the return value of the joy_read of the joystick driver(s) on that target. If there indeed are several joystick drivers for a single target they must agree on a common return value for joy_read. In some cases this was alredy the case as there's a "natural" return value for joy_read. However a few joystick drivers need to be adjusted. This may cause some overhead inside the driver. But that is for sure smaller than the overhead introduced by the joy_masks lookup before. !!! ToDo !!! The following three joystick drivers become broken with this commit and need to be adjusted: - atrmj8.s - c64-numpad.s - vic20-stdjoy.s
79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <conio.h>
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#include <joystick.h>
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#ifdef JOYSTICK_DRIVER
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/* A statically linked driver was named on the compiler's command line.
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** Make sure that it is used instead of a dynamic one.
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*/
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# undef DYN_DRV
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# define DYN_DRV 0
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#else
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/* Use a dynamically loaded driver, by default. */
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# ifndef DYN_DRV
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# define DYN_DRV 1
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# endif
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#endif
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int main (void)
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{
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unsigned char j;
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unsigned char count;
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unsigned char i;
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#if DYN_DRV
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unsigned char Res = joy_load_driver (joy_stddrv);
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#elif defined(JOYSTICK_DRIVER)
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unsigned char Res = joy_install (&JOYSTICK_DRIVER);
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#else
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unsigned char Res = joy_install (&joy_static_stddrv);
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#endif
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if (Res != JOY_ERR_OK) {
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cprintf ("Error in joy_load_driver: %u\r\n", Res);
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#if DYN_DRV
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cprintf ("os: %u, %s\r\n", _oserror, _stroserror (_oserror));
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#endif
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exit (EXIT_FAILURE);
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}
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clrscr ();
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count = joy_count ();
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#if defined(__ATARI5200__) || defined(__CREATIVISION__)
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cprintf ("JOYSTICKS: %d", count);
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#else
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cprintf ("Driver supports %d joystick(s)", count);
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#endif
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while (1) {
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for (i = 0; i < count; ++i) {
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gotoxy (0, i+1);
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j = joy_read (i);
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#if defined(__ATARI5200__) || defined(__CREATIVISION__)
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cprintf ("%1d:%-3s%-3s%-3s%-3s%-3s%-3s",
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i,
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JOY_UP(j)? " U " : " - ",
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JOY_DOWN(j)? " D " : " - ",
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JOY_LEFT(j)? " L " : " - ",
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JOY_RIGHT(j)? " R " : " - ",
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JOY_BTN_1(j)? " 1 " : " - ");
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#else
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cprintf ("%2d: %-6s%-6s%-6s%-6s%-6s%-6s",
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i,
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JOY_UP(j)? " up " : " ---- ",
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JOY_DOWN(j)? " down " : " ---- ",
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JOY_LEFT(j)? " left " : " ---- ",
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JOY_RIGHT(j)? "right " : " ---- ",
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JOY_BTN_1(j)? "button" : " ---- ");
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#endif
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}
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}
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return 0;
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}
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