1 /*****************************************************************************
2 ** This is part of the CTSim program
3 ** Copyright (C) 1983-2000 Kevin Rosenberg
5 ** $Id: sgp.h,v 1.3 2000/04/28 18:35:21 kevin Exp $
7 ** Revision 1.3 2000/04/28 18:35:21 kevin
8 ** removed unused files
10 ** Revision 1.2 2000/04/28 14:14:16 kevin
11 ** *** empty log message ***
14 ** This program is free software; you can redistribute it and/or modify
15 ** it under the terms of the GNU General Public License (version 2) as
16 ** published by the Free Software Foundation.
18 ** This program is distributed in the hope that it will be useful,
19 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
20 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 ** GNU General Public License for more details.
23 ** You should have received a copy of the GNU General Public License
24 ** along with this program; if not, write to the Free Software
25 ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 ******************************************************************************/
27 /*----------------------------------------------------------------------*/
28 /* Standard Graphics Package Header File */
29 /*----------------------------------------------------------------------*/
46 #define LS_SOLID 0xffff
47 #define LS_DASH1 0xff00
48 #define LS_DASH2 0xf0f0
49 #define LS_DASH3 0xcccc
50 #define LS_DASH4 0xff3e
51 #define LS_DOTTED 0xaaaa
59 int open; /* TRUE if device is open for output */
60 int xsize, ysize; /* Size of device in pixels */
61 int xmin, ymin; /* smallest coordinates */
62 int xmax, ymax; /* Maximum coordinates */
63 int colormax; /* Maximum color number of device */
64 int style; /* Current linestyle of device */
65 int width; /* Current width of device */
66 int color; /* Current color of device */
67 int icurx, icury; /* Current position */
68 int icwidth, icheight; /* Size of characters in pixels */
69 int cfore, cback; /* Character foregnd & backgnd colors */
70 float asp; /* Aspect ratio. Multipy x coord */
71 int (*dotfunc)(int x1, int y1, int color); /* Dot function for device */
72 int (*linefunc)(int x1, int y1, int x2, int y2, int color); /* Line function for device */
73 unsigned int nbytes; /* Size of buffer in bytes */
74 char *buf; /* Pointer to buffer */
75 unsigned int bufseg, bufoff; /* Buffer memory location */
76 int mode; /* Device mode */
80 float width, height; /* size of characters in NDC */
81 float textangle; /* text angle in radians */
82 float charupangle; /* character up angle */
83 int font; /* font for characters */
84 int updir, textdir; /* text direct & character orientation */
85 int fore, back; /* foreground & background color */
86 /* if back = -1, then transparent back */
90 int foregnd, backgnd; /* current foregound & background colors */
91 int linestyle; /* current 16 bit linestyle */
92 int linewidth; /* current width of line (in pixels) */
93 int marktype; /* current marker type */
94 int markcolor; /* current marker color */
95 float xndc, yndc; /* current position in NDC */
98 typedef struct device_st DEVICE;
99 typedef struct charsp_st CHARSPEC;
100 typedef struct state_st GRFSTATE;
102 struct point {double x, y, z;};
105 /******************************************************************
109 * Max R. Dursteler Dec 1983 *
110 * 12405 Village Square Terrace *
111 * Rockville Md. 20852 *
112 ******************************************************************
117 /* Flagcodes for motion directions */
118 #define XPLUS 001 /* right */
119 #define XMINUS 002 /* left */
120 #define YPLUS 004 /* up */
121 #define YMINUS 010 /* down */
123 /* Codes for marker symbols */
124 #define POINT 0 /* small dot */
125 #define SQUARE 1 /* empty square */
126 #define FSQUARE 2 /* filled square */
127 #define DIAMOND 3 /* empty diamond */
128 #define FDIAMOND 4 /* filled diamond */
129 #define CROSS 5 /* cross */
130 #define XCROSS 6 /* x */
131 #define CERCLE 7 /* open circle */
132 #define FCERCLE 8 /* filled circle */
133 #define BSQUARE 9 /* big open square */
134 #define BDIAMOND 10 /* big open diamond */
136 #define NMARKERS 11 /* Number of available symbol types */
138 /*-------------------------------------------------------------------------*/
140 #define PSET 0 /* codes for raster merging */
146 /*-------------------------------------------------------------------------*/
148 #define X_STKMIN 10 /* joystick specific values */
153 #define X_LOCMAX (X_STKMAX - X_STKMIN); /* range from readloc() */
154 #define Y_LOCMAX (Y_STKMAX - Y_STKMIN); /* = 0 to LOCMAX */
156 #define JOYSTK1 0 /* device names */
159 #define BUTT_DONE 2 /* Right joystick button to end a command */
160 #define BUTT_START 1 /* Left joystick button to start a command */
161 #define BUTT_BOTH 3 /* Both buttons pressed */
163 #define RL_ERROR -1 /* readloc() return codes */
167 /*-------------------------------------------------------------------------*/
175 typedef struct raster_st RASTER;
177 /*-------------------------------------------------------------------------*/
179 typedef double GRFMTX_2D[3][3];
180 typedef double GRFMTX_3D[4][4];
184 void circle(const double r);
185 void drawarc(double start, double stop, const double r);
187 int cliprect(double *x1, double *y1, double *x2, double *y2, const double rect[4]);
189 int ctm_xlat_pre_2(double x, double y);
190 int ctm_xlat_post_2(double x, double y);
191 int ctm_scale_pre_2(double sx, double sy);
192 int ctm_scale_post_2(double sx, double sy);
193 int ctm_rotate_pre_2(double theta);
194 int ctm_rotate_post_2(double theta);
195 int ctm_shear_pre_2(double shrx, double shry);
196 int ctm_shear_post_2(double shrx, double shry);
197 int xlat_gmtx_2(GRFMTX_2D m, double x, double y);
198 int scale_gmtx_2(GRFMTX_2D m, double sx, double sy);
199 int shear_gmtx_2(GRFMTX_2D m, double shrx, double shry);
200 int rotate_gmtx_2(GRFMTX_2D m, double theta);
201 int ident_gmtx_2(GRFMTX_2D m);
202 int mult_gmtx_2(GRFMTX_2D a, GRFMTX_2D b, GRFMTX_2D c);
203 int invert_gmtx_2(GRFMTX_2D a, GRFMTX_2D b);
204 double determ_gmtx_2(GRFMTX_2D a);
206 int drawbox(double xmin, double ymin, double xmax, double ymax);
208 int gptrace(int state);
209 int viewprt3(double xmin, double ymin, double zmin, double xmax, double ymax, double zmax);
210 int window3(double xmin, double ymin, double xmax, double ymax);
211 int setproj(int pr, double x, double y, double z);
212 int setvrp(double x, double y, double z);
213 int setvpn(double x, double y, double z);
214 int setvup(double x, double y, double z);
215 int viewdepth(double front, double back);
216 int gpfrontclip(int on_off);
217 int gpbackclip(int on_off);
220 int calcrot(double rot[5][5]);
221 int calcpertrans(void);
222 int calcpartrans(void);
223 int matident(double mtx[5][5]);
224 int matmult(double premtx[5][5], double postmtx[5][5], double result[5][5]);
225 int crossprod(struct point *v, struct point *w, struct point *result);
226 int transform(double mtx[5][5], double *x, double *y, double *z);
227 int homotrans(double mtx[5][5], double *x, double *y, double *z, double *w);
228 int moveabs3(double x, double y, double z);
229 int moverel3(double xr, double yr, double zr);
230 int lineabs3(double x, double y, double z);
231 int linerel3(double xr, double yr, double zr);
232 int drawline(double xinput, double yinput, double zinput);
233 int mastertondc(double *x, double *y, double *z);
234 int checkchange(void);
237 int matwrite(double mtx[5][5]);
238 int pyr_edge(double x, double y, double z, int *pos);
239 int clippyramid(double *x1, double *y1, double *z1, double *x2, double *y2, double *z2, int *accept);
240 int cube_edge(double x, double y, double z, int *pos);
241 int clipcube(double *x1, double *y1, double *z1, double *x2, double *y2, double *z2, int *accept);
244 int window2(double xmin, double ymin, double xmax, double ymax);
245 int window_2(double xmin, double ymin, double xmax, double ymax);
246 int viewprt2(double xmin, double ymin, double xmax, double ymax);
247 int viewport_2(double xmin, double ymin, double xmax, double ymax);
249 int calc_wc_to_ndc(void);
250 int calc_ndc_to_mc(void);
251 int wc_to_ndc(double xw, double yw, double *xn, double *yn);
252 int ndc_to_wc(double xn, double yn, double *xw, double *yw);
254 int linestyle(int style);
255 int line_abs_2(double x, double y);
256 int lineabs2(double x, double y);
257 int move_abs_2(double x, double y);
258 int moveabs2(double x, double y);
259 int line_rel_2(double x, double y);
260 int linerel2(double x, double y);
261 int move_rel_2(double x, double y);
262 int moverel2(double x, double y);
263 int draw_text(char *message);
264 int drawtext(char *message);
265 int polylnabs2(double x[], double y[], int n);
266 int markabs2(double x, double y);
267 int markrel2(double x, double y);
268 int pntabs2(double x, double y);
269 int pntrel2(double x, double y);
271 int ctm_get_2(GRFMTX_2D m);
272 int ctm_set_2(GRFMTX_2D m);
273 int ctm_pre_mult_2(GRFMTX_2D m);
274 int ctm_post_mult_2(GRFMTX_2D m);
277 int initdevice(int dev, int mode, int xsize, int ysize);
278 int opendevice(int dev);
279 int closedevice(int dev);
280 int termdevice(int dev);
281 void stylus(double x, double y, int beam);
282 int pntndc(double x, double y);
283 int markndc(double x, double y);
284 GRFSTATE *inqstate(void);
285 int gp_set_aspect(int dev, double asp);
286 void setlinestyle(int style);
287 int setlinewidth(int wid);
288 DEVICE *inqdev(int dev);
289 int settext(double width, double height, double textangle, int font);
290 int settextclr(int fore, int back);
291 int setcolor(int fore);
292 int setbackg(int back);
293 int initmarker(int marker, int color);
294 int settextdir(int direction);
295 int charsize(double wid, double height);
296 int textangle(double angle);
297 int drivtext(char *message);
299 int flushdevice(int dev);
301 void wrtsymbol(int sym, int x, int y, DEVICE *dev);
302 void wrtchar(int ch, int x, int y, CHARSPEC *cspec, DEVICE *dev);
303 void wrttext(char txtstr[], int x, int y, CHARSPEC *cspec, DEVICE *dev);
304 void crtcolor(int mode, int *f, int *b);