b804964514
Both VT11 and VS60 properly autoconfigure on the PDP11. PDP11 now runs Lunar Lander on all SDL supported platforms. Reworked refresh logic to not require internal delays in the display library
144 lines
4.3 KiB
C
144 lines
4.3 KiB
C
/*
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* $Id: display.h,v 1.13 2004/01/24 08:34:33 phil Exp $
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* interface to O/S independent layer of XY display simulator
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* Phil Budne <phil@ultimate.com>
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* September 2003
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*
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* Changes from Douglas A. Gwyn, Jan 12, 2004
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*/
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/*
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* Copyright (c) 2003-2004, Philip L. Budne
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*
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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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*
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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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*
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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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* THE AUTHORS 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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*
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* Except as contained in this notice, the names of the authors shall
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* not be used in advertising or otherwise to promote the sale, use or
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* other dealings in this Software without prior written authorization
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* from the authors.
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*/
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/*
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* known display types
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*/
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enum display_type {
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DIS_VR14 = 14,
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DIS_VR17 = 17,
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DIS_VR20 = 20,
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DIS_TYPE30 = 30,
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DIS_TX0 = 33,
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DIS_VR48 = 48,
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DIS_TYPE340 = 340
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};
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/*
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* display scale factors
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*/
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#define RES_FULL 1
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#define RES_HALF 2
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#define RES_QUARTER 4
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#define RES_EIGHTH 8
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/*
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* must be called before first call to display_age()
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* (but called implicitly by display_point())
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*/
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extern int display_init(enum display_type, int scale, void *dptr);
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/* return size of virtual display */
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extern int display_xpoints(void);
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extern int display_ypoints(void);
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/* virtual points between display and menu sections */
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#define VR48_GUTTER 8 /* just a guess */
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/* conversion factor from virtual points and displayed pixels */
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extern int display_scale(void);
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/*
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* simulate passage of time; first argument is simulated microseconds elapsed,
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* second argument is flag to slow down simulated speed
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* see comments in display.c for why you should call it often!!
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* Under X11 polls for window events!!
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*/
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extern int display_age(int,int);
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/*
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* display intensity levels.
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* always at least 8 (for VT11/VS60) -- may be mapped internally
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*/
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#define DISPLAY_INT_MAX 7
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#define DISPLAY_INT_MIN 0 /* lowest "on" level */
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/*
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* plot a point; argumen ts are x, y, intensity, color (0/1)
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* returns true if light pen active (mouse button down)
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* at (or very near) this location.
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*
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* Display initialized on first call.
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*/
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extern int display_point(int,int,int,int);
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/*
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* force window system to output bits to screen;
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* call after adding points, or aging the screen
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* collect any window system input (mouse or keyboard)
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*/
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extern void display_sync(void);
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/*
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* currently a noop
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*/
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extern void display_reset(void);
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/*
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* ring the bell
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*/
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extern void display_beep(void);
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/*
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* Set light-pen radius; maximum radius in display coordinates
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* from a "lit" location that the light pen will see.
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*/
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extern void display_lp_radius(int);
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/*
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* set by simulated spacewar switch box switches
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* 18 bits (only high 4 and low 4 used)
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*/
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extern unsigned long spacewar_switches;
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/*
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* light pen "tip switch" activated (for VS60 emulation etc.)
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* should only be set from "driver" (window system layer)
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*/
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extern unsigned char display_lp_sw;
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/*
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* deactivates light pen
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* (SIMH DR11-C simulation when initialized sets this and
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* then reports mouse coordinates as Talos digitizer data)
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*/
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extern unsigned char display_tablet;
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/*
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* users of this library are expected to provide these calls.
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* simulator will set 18 simulated switches.
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*/
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extern unsigned long cpu_get_switches(void); /* get current switch state */
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extern void cpu_set_switches(unsigned long); /* set switches */
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