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IMLAC: Call display library directly; use new display_line API.
This commit is contained in:
Lars Brinkhoff
114
display/imlac.c
114
display/imlac.c
@@ -1,114 +0,0 @@
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/* imlac.c: Imlac display interface.
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Copyright (c) 2020, Lars Brinkhoff
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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LARS BRINKHOFF BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of Lars Brinkhoff shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from Lars Brinkhoff
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*/
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#include "display.h"
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#include "imlac.h"
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#if defined(__cplusplus)
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extern "C" {
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#endif
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int imlac_init(void *dev, int debug)
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{
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return display_init (DIS_IMLAC, 1, dev);
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}
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void imlac_point (int x, int y)
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{
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display_point (x, y, DISPLAY_INT_MAX, 0);
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}
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int imlac_cycle(int us, int slowdown)
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{
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return display_age (us, slowdown);
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}
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#define ABS(_X) ((_X) >= 0 ? (_X) : -(_X))
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#define SIGN(_X) ((_X) >= 0 ? 1 : -1)
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static void
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xline (int x, int y, int x2, int dx, int dy)
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{
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int ix = SIGN(dx);
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int iy = SIGN(dy);
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int ay;
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dx = ABS(dx);
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dy = ABS(dy);
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ay = dy/2;
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for (;;) {
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imlac_point (x, y);
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if (x == x2)
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break;
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if (ay > 0) {
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y += iy;
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ay -= dx;
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}
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ay += dy;
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x += ix;
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}
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}
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static void
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yline (int x, int y, int y2, int dx, int dy)
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{
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int ix = SIGN(dx);
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int iy = SIGN(dy);
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int ax;
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dx = ABS(dx);
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dy = ABS(dy);
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ax = dx/2;
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for (;;) {
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imlac_point (x, y);
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if (y == y2)
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break;
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if (ax > 0) {
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x += ix;
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ax -= dy;
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}
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ax += dx;
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y += iy;
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}
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}
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void
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imlac_line (int x1, int y1, int x2, int y2)
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{
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int dx = x2 - x1;
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int dy = y2 - y1;
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if (ABS (dx) > ABS(dy))
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xline (x1, y1, x2, dx, dy);
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else
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yline (x1, y1, y2, dx, dy);
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}
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#if defined(__cplusplus)
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}
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#endif
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@@ -1,38 +0,0 @@
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/* imlac.h: Imlac display interface.
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Copyright (c) 2020, Lars Brinkhoff.
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
|
||||
to deal in the Software without restriction, including without limitation
|
||||
the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||||
and/or sell copies of the Software, and to permit persons to whom the
|
||||
Software is furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in
|
||||
all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
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LARS BRINKHOFF BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
|
||||
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
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|
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Except as contained in this notice, the name of Lars Brinkhoff shall not be
|
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used in advertising or otherwise to promote the sale, use or other dealings
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||||
in this Software without prior written authorization from Lars Brinkhoff
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*/
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#if defined(__cplusplus)
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extern "C" {
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#endif
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extern int imlac_init(void *, int);
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extern int imlac_cycle(int, int);
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extern void imlac_point(int, int);
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extern void imlac_line(int x1, int y1, int x2, int y2);
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#if defined(__cplusplus)
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}
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#endif
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