82 lines
3.7 KiB
C
82 lines
3.7 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: grf_monitor.h,v 1.2 1994/01/29 06:59:58 chopps Exp $
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*/
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#if ! defined (_GRF_MONITOR_H)
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#define _GRF_MONITOR_H
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/* monitor functions */
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/* this function will be called for every (maybe) VB if the mode is
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* the active one */
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typedef void vbl_handler_func (void *);
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/* returns the next mode given a mode or the first if NULL */
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typedef dmode_t *get_next_mode_func (dmode_t *);
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/* returns the currently active mode this can be NULL if none are active */
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typedef dmode_t *get_current_mode_func (void);
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/* returns the mode that best fits the parameters, or NULL if none fit */
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typedef dmode_t *get_best_mode_func (dimen_t *size, u_byte depth);
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/* allocate a bitmap for use with this monitor see notes on restrictions */
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typedef bmap_t *alloc_bitmap_func (u_word w, u_word h, u_word d, u_word f);
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/* free a bitmap that was allocated with this monitors alloc_bitmap()
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* function. */
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typedef void free_bitmap_func (bmap_t *bm);
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/* monitor: support different graphic boards and viewmodes. */
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struct monitor {
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dll_node_t node; /* a link into the database. */
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u_byte *name; /* a logical name for this monitor. */
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void *data; /* monitor specific data. */
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/* funciton interface to this monitor. */
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vbl_handler_func *vbl_handler; /* gets called on every vbl if not NULL */
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get_next_mode_func *get_next_mode; /* return next mode in list */
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get_current_mode_func *get_current_mode; /* return active mode or NULL */
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get_best_mode_func *get_best_mode; /* return mode that best fits */
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alloc_bitmap_func *alloc_bitmap; /* allocate a bitmap for use with this monitor */
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free_bitmap_func *free_bitmap; /* free a bitmap */
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};
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dmode_t * grf_get_next_mode (monitor_t *m, dmode_t *d);
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dmode_t * grf_get_current_mode (monitor_t *);
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dmode_t * grf_get_best_mode (monitor_t *m, dimen_t *size, u_byte depth);
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bmap_t * grf_alloc_bitmap (monitor_t *m, u_word w, u_word h, u_word d, u_word f);
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void grf_free_bitmap (monitor_t *m, bmap_t *bm);
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#endif /* _GRF_MONITOR_H */
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