133 lines
3.3 KiB
C
133 lines
3.3 KiB
C
/*
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* Copyright (c) 1994 Christian E. Hopps
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christian E. Hopps.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: grfcc.c,v 1.2 1994/01/29 07:00:08 chopps Exp $
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*/
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#include <stdlib.h>
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#include "../../amiga/cc_vbl.h"
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#include "grf_types.h"
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#include "grf_mode.h"
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#include "grf_monitor.h"
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/* add your monitor here. */
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monitor_t *cc_init_monitor (void);
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/* and here. */
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monitor_t *(*init_monitor[])(void) = {
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cc_init_monitor,
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NULL
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};
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dll_list_t instance_monitors;
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dll_list_t *monitors;
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struct vbl_node grf_vbl_node;
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void
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grf_vbl_function (void * data)
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{
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dll_node_t *n = monitors->head;
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while (n->next) {
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monitor_t *m = (monitor_t *)n;
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if (m->vbl_handler) {
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m->vbl_handler (m);
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}
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n = n->next;
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}
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}
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/*
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* XXX: called from ite console init routine.
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* Does just what configure will do later but without printing anything.
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*/
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int
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grfcc_probe ()
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{
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int i = 0;
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grf_vbl_node.function = grf_vbl_function;
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if (NULL == monitors) {
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dinit_list (&instance_monitors);
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monitors = &instance_monitors;
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while (init_monitor[i]) {
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init_monitor[i] ();
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i++;
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}
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if (i) {
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add_vbl_function (&grf_vbl_node, 1, 0);
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return (1);
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}
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return (0);
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}
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return (1);
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}
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void
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grfcc_config (void)
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{
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grfprobe ();
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}
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dmode_t *
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get_best_display_mode (u_long width, u_long height, u_byte depth)
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{
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dmode_t *save = NULL;
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monitor_t *m = (monitor_t *)monitors->head;
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long dt;
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while (m->node.next) {
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dimen_t dim;
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dmode_t *d;
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long dx, dy, ct;
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dim.width = width;
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dim.height = height;
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d = m->get_best_mode (&dim, depth);
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if (d) {
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dx = abs (d->nominal_size.width - width);
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dy = abs (d->nominal_size.height - height);
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ct = dx + dy;
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if (ct < dt || save == NULL) {
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save = d;
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dt = ct;
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}
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}
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m = (monitor_t *)m->node.next;
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}
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return (save);
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}
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