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1 | /* ibm1130_plot.c: IBM 1130 1627 plotter emulation\r |
2 | \r | |
3 | Based on the SIMH simulator package written by Robert M Supnik\r | |
4 | \r | |
5 | Brian Knittel\r | |
6 | Revision History\r | |
7 | \r | |
8 | 2004.10.22 - Written.\r | |
9 | 2006.1.2 - Rewritten as plotter routine by Carl V Claunch\r | |
10 | \r | |
11 | * (C) Copyright 2004, Brian Knittel.\r | |
12 | * You may freely use this program, but: it offered strictly on an AS-IS, AT YOUR OWN\r | |
13 | * RISK basis, there is no warranty of fitness for any purpose, and the rest of the\r | |
14 | * usual yada-yada. Please keep this notice and the copyright in any distributions\r | |
15 | * or modifications.\r | |
16 | *\r | |
17 | * This is not a supported product, but I welcome bug reports and fixes.\r | |
18 | * Mail to simh@ibm1130.org\r | |
19 | */\r | |
20 | \r | |
21 | #include "ibm1130_defs.h"\r | |
22 | \r | |
23 | #ifndef ENABLE_PLOT_SUPPORT\r | |
24 | \r | |
25 | DEVICE plot_dev = {\r | |
26 | "PLOT", NULL, NULL, NULL,\r | |
27 | 0, 16, 16, 1, 16, 16,\r | |
28 | NULL, NULL, NULL,\r | |
29 | NULL, NULL, NULL};\r | |
30 | \r | |
31 | void xio_1627_plotter (int32 addr, int32 func, int32 modify)\r | |
32 | {\r | |
33 | /* silently eat any plotter commands */\r | |
34 | }\r | |
35 | \r | |
36 | #else\r | |
37 | \r | |
38 | #include "gd.h"\r | |
39 | \r | |
40 | /***************************************************************************************\r | |
41 | * 1627 model 1 plotter (based on Calcomp 535 which was sold as IBM 1627)\r | |
42 | *\r | |
43 | * - 11" wide carriage, addressible in .01" steps\r | |
44 | * - continous sheet paper up to 120' in length\r | |
45 | * - sheet moveable in .01" steps, either direction\r | |
46 | * - switchable pen, in various colors and line widths\r | |
47 | *\r | |
48 | * Simulator implementation will create a JPEG image corresponding to a \r | |
49 | * landscape mode sheet of paper, the width of the carriage at 11".\r | |
50 | * A diagram of more than 8" of paper travel will span printed pages\r | |
51 | * in landscape mode. \r | |
52 | *\r | |
53 | * When an 'att plot' command is issued a file is created based on the\r | |
54 | * default or currently set values of paper length, starting\r | |
55 | * position of the pen in both X and Y axes, pen color and pen width.\r | |
56 | * Based on the number of logical pages of paper, the command will create\r | |
57 | * the proper size canvas internally and create the output JPEG file.\r | |
58 | * \r | |
59 | * When a 'det plot' command is issued, the plotter image will be converted \r | |
60 | * into the file that was specified during the attach process. The\r | |
61 | * image is not viewable until this point, unless an examine plot is\r | |
62 | * issued which will dump the current state of the paper into the file.\r | |
63 | * \r | |
64 | * The 'set plot' command can set pen width, paper length, pen color,\r | |
65 | * current carriage X and Y coordinates. Paper length can be set\r | |
66 | * to alter the default of 800 (8"); changes are ignored until\r | |
67 | * the next 'attach' command. The current carriage x and y positions\r | |
68 | * can be set at any time and will go into effect immediately, just\r | |
69 | * as the pen color and pen width can be altered on the fly.\r | |
70 | *\r | |
71 | * NOTE: requires gd library and definition of ENABLE_PLOT_SUPPORT in makefile or Visual C configuration\r | |
72 | * gd is not included in the main simh and ibm1130.org distributions at the present time.\r | |
73 | ***************************************************************************************/\r | |
74 | \r | |
75 | #define PLOT1627_DSW_OP_COMPLETE 0x8000\r | |
76 | #define PLOT1627_DSW_BUSY 0x0200\r | |
77 | #define PLOT1627_DSW_NOT_READY 0x0100\r | |
78 | \r | |
79 | #define IS_ONLINE(u) (((u)->flags & (UNIT_ATT|UNIT_DIS)) == UNIT_ATT)\r | |
80 | #define IS_DEBUG ((plot_unit->flags & UNIT_DEBUG) == UNIT_DEBUG)\r | |
81 | #define IS_PENDOWN ((plot_unit->flags & UNIT_PEN) == UNIT_PEN)\r | |
82 | \r | |
83 | static t_stat plot_svc (UNIT *uptr); /* activity routine */\r | |
84 | static t_stat plot_reset (DEVICE *dptr); /* reset of 1130 */\r | |
85 | static t_stat plot_attach (UNIT *uptr, char *cptr); /* attach, loads plotter */\r | |
86 | static t_stat plot_detach (UNIT *uptr); /* detach and save image */\r | |
87 | static t_stat plot_examine (UNIT *uptr); /* update file with current canvas */\r | |
88 | static t_stat plot_set_length (UNIT *uptr, int32 val, char * ptr, void *desc); /* set paper length */\r | |
89 | static t_stat plot_set_pos (UNIT *uptr, int32 val, char * ptr, void *desc); /* reset current X/Y position */\r | |
90 | static t_stat plot_show_vals(FILE *fp, UNIT *uptr, int32 val, void *descrip); /* print x, y and length */\r | |
91 | static t_stat plot_show_nl(FILE *fp, UNIT *uptr, int32 val, void *descrip); /* overcome wacky simh behavior */\r | |
92 | static void update_pen(void); /* will ensure pen action is correct when changes made */\r | |
93 | static t_stat plot_validate_change (UNIT *uptr, int32 val, char * ptr, void *desc); /* when set command issued */\r | |
94 | static void process_cmd(void); /* does actual drawing for plotter */\r | |
95 | \r | |
96 | extern int32 sim_switches; /* switches set on simh command */\r | |
97 | static int16 plot_dsw = 0; /* device status word */\r | |
98 | static int16 plot_cmd = 0; /* the command to process */\r | |
99 | static int32 plot_wait = 1000; /* plotter movement wait */\r | |
100 | static int32 plot_xpos = 0; /* current X position */\r | |
101 | static int32 plot_xmax = 799; /* end of paper */\r | |
102 | static int32 plot_ypos = 0; /* current Y position */\r | |
103 | static int32 plot_ymax = 1099; /* right edge of carriage */\r | |
104 | \r | |
105 | #define PEN_DOWN 0x80000000\r | |
106 | #define PEN_UP 0x00000000\r | |
107 | static int32 plot_pen = PEN_UP; /* current pen position */\r | |
108 | \r | |
109 | static int black_pen; /* holds color black */\r | |
110 | static int blue_pen; /* holds color blue */\r | |
111 | static int red_pen; /* holds color red */\r | |
112 | static int green_pen; /* holds color green */\r | |
113 | static int yellow_pen; /* holds yellow color */\r | |
114 | static int purple_pen; /* holds color purple */\r | |
115 | static int ltgrey_pen; /* holds light grey */\r | |
116 | static int grey_pen; /* holds grey */\r | |
117 | static int white_background; /* holds white of paper roll */\r | |
118 | static int plot_pwidth; /* set and display variable */\r | |
119 | static int plot_pcolor; /* set and display variable */\r | |
120 | static int need_update = 0; /* flag to force and update_pen() */\r | |
121 | static gdImagePtr image; /* pointer to our canvas */\r | |
122 | \r | |
123 | #define UNIT_V_COLOR (UNIT_V_UF + 0) /* color of selected pen - 3 bits */\r | |
124 | #define UNIT_V_WIDTH (UNIT_V_UF + 3) /* width of pen - two bits */\r | |
125 | #define UNIT_V_NOOP (UNIT_V_UF + 5) /* dummy for set/show commands */\r | |
126 | #define UNIT_V_DEBUG (UNIT_V_UF + 6) /* for -d switch on attach command */\r | |
127 | #define UNIT_V_PEN (UNIT_V_UF + 7) /* track pen state */\r | |
128 | \r | |
129 | #define UNIT_WIDTH (3u << UNIT_V_WIDTH) /* two bits */\r | |
130 | #define UNIT_COLOR (7u << UNIT_V_COLOR) /* three bits */\r | |
131 | #define UNIT_NOOP (1u << UNIT_V_NOOP) /* dummy for set/show */\r | |
132 | #define UNIT_DEBUG (1u << UNIT_V_DEBUG) /* shows debug mode on */\r | |
133 | #define UNIT_PEN (1u << UNIT_V_PEN) /* the pen state bit */\r | |
134 | \r | |
135 | #define PEN_BLACK (0u << UNIT_V_COLOR)\r | |
136 | #define PEN_RED (1u << UNIT_V_COLOR)\r | |
137 | #define PEN_BLUE (2u << UNIT_V_COLOR)\r | |
138 | #define PEN_GREEN (3u << UNIT_V_COLOR)\r | |
139 | #define PEN_YELLOW (4u << UNIT_V_COLOR)\r | |
140 | #define PEN_PURPLE (5u << UNIT_V_COLOR)\r | |
141 | #define PEN_LTGREY (6u << UNIT_V_COLOR)\r | |
142 | #define PEN_GREY (7u << UNIT_V_COLOR)\r | |
143 | \r | |
144 | #define SET_COLOR(op) {plot_unit[0].flags &= ~UNIT_COLOR; plot_unit[0].flags |= (op);}\r | |
145 | #define GET_COLOR (plot_unit[0].flags & UNIT_COLOR)\r | |
146 | \r | |
147 | #define BLACK 0,0,0\r | |
148 | #define BLUE 0,0,255\r | |
149 | #define RED 255,0,0\r | |
150 | #define GREEN 0,255,0\r | |
151 | #define YELLOW 200,200,0\r | |
152 | #define PURPLE 150,0,150\r | |
153 | #define LTGREY 200,200,200\r | |
154 | #define GREY 120,120,120\r | |
155 | #define WHITE 255,255,255\r | |
156 | \r | |
157 | #define PEN_SINGLE (0u << UNIT_V_WIDTH)\r | |
158 | #define PEN_DOUBLE (1u << UNIT_V_WIDTH)\r | |
159 | #define PEN_TRIPLE (2u << UNIT_V_WIDTH)\r | |
160 | #define PEN_QUAD (3u << UNIT_V_WIDTH)\r | |
161 | \r | |
162 | #define GET_WIDTH() (plot_unit[0].flags & UNIT_WIDTH)\r | |
163 | #define SET_WIDTH(cd) {plot_unit[0].flags &= ~UNIT_WIDTH; un.flags |= (cd);}\r | |
164 | \r | |
165 | UNIT plot_unit[] = {\r | |
166 | { UDATA (&plot_svc, UNIT_ATTABLE, 0) },\r | |
167 | };\r | |
168 | \r | |
169 | REG plot_reg[] = {\r | |
170 | { HRDATA (DSW, plot_dsw, 16) }, /* device status word */\r | |
171 | { DRDATA (WTIME, plot_wait, 24), PV_LEFT }, /* plotter movement wait */\r | |
172 | { DRDATA (Xpos, plot_xpos, 32), PV_LEFT }, /* Current X Position*/\r | |
173 | { DRDATA (Ypos, plot_ypos, 32), PV_LEFT }, /* Current Y Position*/\r | |
174 | { FLDATA (PenDown, plot_pen, 0)}, /* Current pen position - 1 = down */\r | |
175 | { DRDATA (PaperSize, plot_xmax, 32), PV_LEFT }, /* Length of paper in inches */\r | |
176 | { NULL } };\r | |
177 | \r | |
178 | MTAB plot_mod[] = {\r | |
179 | { UNIT_COLOR, PEN_BLACK, "black", "BLACK", &plot_validate_change},\r | |
180 | { UNIT_COLOR, PEN_RED, "red", "RED", &plot_validate_change},\r | |
181 | { UNIT_COLOR, PEN_BLUE, "blue", "BLUE", &plot_validate_change},\r | |
182 | { UNIT_COLOR, PEN_GREEN, "green", "GREEN", &plot_validate_change},\r | |
183 | { UNIT_COLOR, PEN_YELLOW, "yellow", "YELLOW", &plot_validate_change},\r | |
184 | { UNIT_COLOR, PEN_PURPLE, "purple", "PURPLE", &plot_validate_change},\r | |
185 | { UNIT_COLOR, PEN_LTGREY, "ltgrey", "LTGREY", &plot_validate_change},\r | |
186 | { UNIT_COLOR, PEN_GREY, "grey", "GREY", &plot_validate_change},\r | |
187 | { UNIT_WIDTH, PEN_SINGLE, "1.0", "1.0", &plot_validate_change},\r | |
188 | { UNIT_WIDTH, PEN_DOUBLE, "2.0", "2.0", &plot_validate_change},\r | |
189 | { UNIT_WIDTH, PEN_TRIPLE, "3.0", "3.0", &plot_validate_change},\r | |
190 | { UNIT_WIDTH, PEN_QUAD, "4.0", "4.0", &plot_validate_change},\r | |
191 | { UNIT_PEN, UNIT_PEN, "pendown", "PENDOWN", &plot_validate_change},\r | |
192 | { UNIT_PEN, 0, "penup", "PENUP", &plot_validate_change},\r | |
193 | /* below is dummy entry to trigger the show routine and print extended values */\r | |
194 | { UNIT_NOOP, 0, "", NULL, NULL, &plot_show_vals},\r | |
195 | /* extended entries must allow parm for both unit and dev, but\r | |
196 | * then they will print the value twice for a 'show plot' command\r | |
197 | * therefore they are set to not display unless explicity requested\r | |
198 | * and the special dummy NOOP entry will cause the print of these values */\r | |
199 | { MTAB_XTD | MTAB_VAL | MTAB_VUN | MTAB_VDV | MTAB_NMO, 2,\r | |
200 | "length", "LENGTH", &plot_set_length, &plot_show_nl, &plot_reg[5]},\r | |
201 | { MTAB_XTD | MTAB_VAL | MTAB_VDV | MTAB_VUN | MTAB_NMO, 0,\r | |
202 | "Xpos", "XPOS", &plot_set_pos, &plot_show_nl, &plot_reg[2]},\r | |
203 | { MTAB_XTD | MTAB_VAL | MTAB_VDV | MTAB_VUN | MTAB_NMO, 1,\r | |
204 | "Ypos", "YPOS", &plot_set_pos, &plot_show_nl, &plot_reg[3]},\r | |
205 | { 0 } };\r | |
206 | \r | |
207 | DEVICE plot_dev = {\r | |
208 | "PLOT", plot_unit, plot_reg, plot_mod,\r | |
209 | 1, 16, 16, 1, 16, 16,\r | |
210 | NULL, NULL, plot_reset,\r | |
211 | NULL, plot_attach, plot_detach};\r | |
212 | \r | |
213 | /* xio_1627_plotter - XIO command interpreter for the 1627 plotter model 1 */\r | |
214 | \r | |
215 | void xio_1627_plotter (iocc_addr, iocc_func, iocc_mod)\r | |
216 | {\r | |
217 | char msg[80];\r | |
218 | \r | |
219 | if (! IS_ONLINE(plot_unit) ) {\r | |
220 | SETBIT(plot_dsw, PLOT1627_DSW_NOT_READY); /* set not ready */\r | |
221 | if (IS_DEBUG) printf("Plotter has no paper, ignored\n");\r | |
222 | return; /* and ignore */\r | |
223 | }\r | |
224 | \r | |
225 | switch (iocc_func) {\r | |
226 | case XIO_READ: /* read XIO */\r | |
227 | xio_error("Read XIO not supported by 1627 plotter");\r | |
228 | break;\r | |
229 | \r | |
230 | case XIO_WRITE: /* write: do one plotter operation */\r | |
231 | if ((plot_dsw & PLOT1627_DSW_NOT_READY)) {\r | |
232 | if (IS_DEBUG) printf("Wrote to non-ready Plotter\n");\r | |
233 | break;\r | |
234 | }\r | |
235 | plot_cmd = (uint16) ( M[iocc_addr & mem_mask] >> 10 ); /* pick up command */\r | |
236 | process_cmd(); /* interpret command */\r | |
237 | sim_activate(plot_unit, plot_wait); /* schedule interrupt */\r | |
238 | SETBIT(plot_dsw, PLOT1627_DSW_BUSY); /* mark it busy */\r | |
239 | break;\r | |
240 | \r | |
241 | case XIO_SENSE_DEV: /* sense device status */\r | |
242 | ACC = plot_dsw; /* get current status */\r | |
243 | if (iocc_mod & 0x01) { /* reset interrupts */\r | |
244 | CLRBIT(plot_dsw, PLOT1627_DSW_OP_COMPLETE); \r | |
245 | CLRBIT(ILSW[3], ILSW_3_1627_PLOTTER);\r | |
246 | }\r | |
247 | break;\r | |
248 | \r | |
249 | case XIO_CONTROL: /* control XIO */\r | |
250 | xio_error("Control XIO not supported by 1627 plotter");\r | |
251 | break;\r | |
252 | \r | |
253 | default:\r | |
254 | sprintf(msg, "Invalid 1627 Plotter XIO function %x", iocc_func);\r | |
255 | xio_error(msg);\r | |
256 | }\r | |
257 | return;\r | |
258 | }\r | |
259 | \r | |
260 | // plot_svc - 1627 plotter operation complete\r | |
261 | \r | |
262 | static t_stat plot_svc (UNIT *uptr)\r | |
263 | {\r | |
264 | CLRBIT(plot_dsw, PLOT1627_DSW_BUSY); /* clear reader busy flag */\r | |
265 | \r | |
266 | SETBIT(plot_dsw, PLOT1627_DSW_OP_COMPLETE); /* indicate read complete */\r | |
267 | \r | |
268 | SETBIT(ILSW[3], ILSW_3_1627_PLOTTER); /* initiate interrupt */\r | |
269 | calc_ints();\r | |
270 | \r | |
271 | return SCPE_OK;\r | |
272 | }\r | |
273 | \r | |
274 | /* plot_reset - reset emulated plotter */\r | |
275 | \r | |
276 | static t_stat plot_reset (DEVICE *dptr)\r | |
277 | {\r | |
278 | char * buf;\r | |
279 | int32 size;\r | |
280 | \r | |
281 | sim_cancel(plot_unit);\r | |
282 | \r | |
283 | CLRBIT(plot_dsw, PLOT1627_DSW_BUSY | PLOT1627_DSW_OP_COMPLETE);\r | |
284 | \r | |
285 | if (IS_DEBUG) printf("reset routine for Plotter\n");\r | |
286 | \r | |
287 | CLRBIT(ILSW[3], ILSW_3_1627_PLOTTER);\r | |
288 | calc_ints();\r | |
289 | \r | |
290 | return SCPE_OK;\r | |
291 | }\r | |
292 | \r | |
293 | \r | |
294 | /* plot_attach - attach file to simulated plotter */\r | |
295 | \r | |
296 | static t_stat plot_attach (UNIT *uptr, char *cptr)\r | |
297 | {\r | |
298 | t_stat result;\r | |
299 | \r | |
300 | CLRBIT(uptr->flags, UNIT_DEBUG);\r | |
301 | if (sim_switches & SWMASK('D')) SETBIT(uptr->flags, UNIT_DEBUG);\r | |
302 | \r | |
303 | /* get the output file by using regular attach routine */\r | |
304 | result = attach_unit(uptr, cptr);\r | |
305 | \r | |
306 | if (result != SCPE_OK) {\r | |
307 | if (IS_DEBUG) printf("problem attaching file\n");\r | |
308 | return result;\r | |
309 | }\r | |
310 | \r | |
311 | SETBIT(plot_dsw, PLOT1627_DSW_NOT_READY); /* assume failure */\r | |
312 | \r | |
313 | /* set up our canvas at the desired size */\r | |
314 | image = gdImageCreate(plot_ymax+1,plot_xmax+1); /* create our canvas */\r | |
315 | if (image == NULL) {\r | |
316 | if (IS_DEBUG) printf("problem creating image canvas\n");\r | |
317 | return SCPE_MEM;\r | |
318 | }\r | |
319 | \r | |
320 | /* set up the basic colors after image created */\r | |
321 | white_background = gdImageColorAllocate(image,WHITE); /* white is background */\r | |
322 | black_pen = gdImageColorAllocate(image,BLACK); /* load up black color */\r | |
323 | blue_pen = gdImageColorAllocate(image,BLUE); /* load up blue color */\r | |
324 | red_pen = gdImageColorAllocate(image,RED); /* load up red color */\r | |
325 | green_pen = gdImageColorAllocate(image,GREEN); /* load up green color */\r | |
326 | yellow_pen = gdImageColorAllocate(image,YELLOW); /* load up yellow color */\r | |
327 | purple_pen = gdImageColorAllocate(image,PURPLE); /* load up purple color */\r | |
328 | ltgrey_pen = gdImageColorAllocate(image,LTGREY); /* load up light grey color */\r | |
329 | grey_pen = gdImageColorAllocate(image,GREY); /* load up grey color */\r | |
330 | \r | |
331 | if ( (white_background == -1) || (black_pen == -1) ||\r | |
332 | (red_pen == -1) || (blue_pen == -1) || (green_pen == -1) ||\r | |
333 | (purple_pen == -1) || (ltgrey_pen == -1) || (grey_pen == -1) ) {\r | |
334 | if (IS_DEBUG) printf("problem allocating pen colors\n");\r | |
335 | return SCPE_MEM;\r | |
336 | }\r | |
337 | \r | |
338 | CLRBIT(plot_dsw, PLOT1627_DSW_NOT_READY); /* we're in business */\r | |
339 | \r | |
340 | update_pen(); /* routine to ensure pen is okay */\r | |
341 | \r | |
342 | return SCPE_OK;\r | |
343 | }\r | |
344 | \r | |
345 | /* pen updating routine, called at attach and whenever we reset the values */\r | |
346 | \r | |
347 | void update_pen (void)\r | |
348 | {\r | |
349 | int color;\r | |
350 | int width;\r | |
351 | \r | |
352 | if (!IS_ONLINE(plot_unit)) return; /* only do this if attached */\r | |
353 | \r | |
354 | /* pick up latest color as active pen */\r | |
355 | color = GET_COLOR;\r | |
356 | switch (color) {\r | |
357 | case PEN_BLACK:\r | |
358 | plot_pcolor = black_pen;\r | |
359 | break;\r | |
360 | \r | |
361 | case PEN_RED:\r | |
362 | plot_pcolor = red_pen;\r | |
363 | break;\r | |
364 | \r | |
365 | case PEN_BLUE:\r | |
366 | plot_pcolor = blue_pen;\r | |
367 | break;\r | |
368 | \r | |
369 | case PEN_GREEN:\r | |
370 | plot_pcolor = green_pen;\r | |
371 | break;\r | |
372 | \r | |
373 | case PEN_YELLOW:\r | |
374 | plot_pcolor = yellow_pen;\r | |
375 | break;\r | |
376 | \r | |
377 | case PEN_PURPLE:\r | |
378 | plot_pcolor = purple_pen;\r | |
379 | break;\r | |
380 | \r | |
381 | case PEN_LTGREY:\r | |
382 | plot_pcolor = ltgrey_pen;\r | |
383 | break;\r | |
384 | \r | |
385 | case PEN_GREY:\r | |
386 | plot_pcolor = grey_pen;\r | |
387 | break;\r | |
388 | \r | |
389 | default:\r | |
390 | if (IS_DEBUG) printf("invalid pen color state\n");\r | |
391 | plot_pcolor = black_pen;\r | |
392 | break;\r | |
393 | }\r | |
394 | \r | |
395 | /* set up anti-aliasing for the line */\r | |
396 | gdImageSetAntiAliased(image, plot_pcolor);\r | |
397 | \r | |
398 | /* pick up latest width for pen */\r | |
399 | width = GET_WIDTH();\r | |
400 | switch (width) {\r | |
401 | case PEN_SINGLE:\r | |
402 | plot_pwidth = 1;\r | |
403 | gdImageSetThickness(image, 1);\r | |
404 | break;\r | |
405 | \r | |
406 | case PEN_TRIPLE:\r | |
407 | plot_pwidth = 3;\r | |
408 | gdImageSetThickness(image, 3);\r | |
409 | break;\r | |
410 | \r | |
411 | case PEN_DOUBLE:\r | |
412 | plot_pwidth = 2;\r | |
413 | gdImageSetThickness(image, 2);\r | |
414 | break;\r | |
415 | \r | |
416 | case PEN_QUAD:\r | |
417 | plot_pwidth = 4;\r | |
418 | gdImageSetThickness(image, 4);\r | |
419 | break;\r | |
420 | \r | |
421 | default:\r | |
422 | if (IS_DEBUG) printf("invalid pen width\n");\r | |
423 | plot_pwidth = 1;\r | |
424 | gdImageSetThickness(image, 1);\r | |
425 | break;\r | |
426 | }\r | |
427 | \r | |
428 | /* now ensure the pen state is accurate */\r | |
429 | plot_pen = IS_PENDOWN ? PEN_DOWN : PEN_UP;\r | |
430 | return;\r | |
431 | }\r | |
432 | \r | |
433 | /* plot_detach - detach file from simulated plotter */\r | |
434 | static t_stat plot_detach (UNIT *uptr)\r | |
435 | {\r | |
436 | char * buf;\r | |
437 | int32 size;\r | |
438 | FILE * fp;\r | |
439 | int32 result;\r | |
440 | \r | |
441 | SETBIT(plot_dsw, PLOT1627_DSW_NOT_READY);\r | |
442 | \r | |
443 | /* copy images to files, close files, set device to detached, free gd memory */\r | |
444 | \r | |
445 | buf = gdImageGifPtr(image,&size);\r | |
446 | if (! buf) {\r | |
447 | if (IS_DEBUG) printf("failure creating GIF in-memory\n");\r | |
448 | return SCPE_MEM;\r | |
449 | }\r | |
450 | \r | |
451 | fp = uptr->fileref; /* get file attached to unit */\r | |
452 | \r | |
453 | if (! fseek(fp,0,SEEK_SET)) { /* first we reset to begin of file */\r | |
454 | if (IS_DEBUG) printf("wrote out GIF to file\n");\r | |
455 | result = fwrite(buf,1,size,fp); /* write out our image to the file */\r | |
456 | }\r | |
457 | \r | |
458 | gdFree(buf); /* free up the memory of GIF format */\r | |
459 | gdImageDestroy(image); /* free up the canvas memory */\r | |
460 | \r | |
461 | if (result != size) { /* some problem writing it */\r | |
462 | if (IS_DEBUG) printf("error in write of image file\n");\r | |
463 | return SCPE_IOERR;\r | |
464 | }\r | |
465 | \r | |
466 | return detach_unit(uptr); /* have simh close the file */\r | |
467 | }\r | |
468 | \r | |
469 | /* process_cmd - implement the drawing actions of the plotter */\r | |
470 | \r | |
471 | static void process_cmd (void)\r | |
472 | {\r | |
473 | int32 oldx, oldy;\r | |
474 | \r | |
475 | /* first see if we set any changes to pen or position, do an update */\r | |
476 | if (need_update) {\r | |
477 | update_pen();\r | |
478 | need_update = 0;\r | |
479 | }\r | |
480 | \r | |
481 | /* will move pen one step or flip pen up or down */\r | |
482 | oldx = plot_xpos;\r | |
483 | oldy = plot_ypos;\r | |
484 | \r | |
485 | switch (plot_cmd) {\r | |
486 | case 1: /* raise pen command */\r | |
487 | plot_pen = PEN_UP;\r | |
488 | plot_unit->flags = plot_unit->flags & (~UNIT_PEN);\r | |
489 | return;\r | |
490 | break;\r | |
491 | \r | |
492 | case 2: /* +Y command */\r | |
493 | plot_ypos = plot_ypos + 1;\r | |
494 | break;\r | |
495 | \r | |
496 | case 4: /* -Y command */\r | |
497 | plot_ypos = plot_ypos - 1;\r | |
498 | break;\r | |
499 | \r | |
500 | case 8: /* -X command */\r | |
501 | plot_xpos = plot_xpos - 1;\r | |
502 | break;\r | |
503 | \r | |
504 | case 10: /* -X +Y command */\r | |
505 | plot_xpos = plot_xpos - 1;\r | |
506 | plot_ypos = plot_ypos + 1;\r | |
507 | break;\r | |
508 | \r | |
509 | case 12: /* -X -Y command */\r | |
510 | plot_xpos = plot_xpos - 1;\r | |
511 | plot_ypos = plot_ypos - 1;\r | |
512 | break;\r | |
513 | \r | |
514 | case 16: /* +X command */\r | |
515 | plot_xpos = plot_xpos + 1;\r | |
516 | break;\r | |
517 | \r | |
518 | case 18: /* +X +Y command */\r | |
519 | plot_xpos = plot_xpos + 1;\r | |
520 | plot_ypos = plot_ypos + 1;\r | |
521 | break;\r | |
522 | \r | |
523 | case 20: /* +X -Y pen command */\r | |
524 | plot_xpos = plot_xpos + 1;\r | |
525 | plot_ypos = plot_ypos - 1;\r | |
526 | break;\r | |
527 | \r | |
528 | case 32: /* lower pen command */\r | |
529 | plot_pen = PEN_DOWN;\r | |
530 | plot_unit->flags = plot_unit->flags | UNIT_PEN;\r | |
531 | return;\r | |
532 | break;\r | |
533 | \r | |
534 | default:\r | |
535 | if (IS_DEBUG) printf("invalid plotter command\n");\r | |
536 | return;\r | |
537 | break;\r | |
538 | }\r | |
539 | \r | |
540 | /* check to see if carriage has moved off any edge */\r | |
541 | if ((plot_xpos > (plot_xmax+1)) || (plot_ypos > (plot_ymax+1)) ||\r | |
542 | (plot_xpos < 0) || (plot_ypos < 0)) {\r | |
543 | /* if so, ignore as 1627 has no way of signalling error */\r | |
544 | if (IS_DEBUG) printf(\r | |
545 | "attempted to move carriage off paper edge %d %d for command %d\n",\r | |
546 | plot_xpos,plot_ypos,plot_cmd);\r | |
547 | return;\r | |
548 | }\r | |
549 | \r | |
550 | /* only draw a line if the pen was down during the movement command */\r | |
551 | if (plot_pen) {\r | |
552 | gdImageLine(image, plot_ymax-plot_ypos, plot_xmax-plot_xpos, plot_ymax-oldy, plot_xmax-oldx, gdAntiAliased);\r | |
553 | /* semantics are 0,0 point is lower right */\r | |
554 | }\r | |
555 | \r | |
556 | return;\r | |
557 | }\r | |
558 | \r | |
559 | /* plot_set_length - validate and store the length of the paper */\r | |
560 | \r | |
561 | static t_stat plot_set_length (UNIT *uptr, int32 set, char *ptr, void *desc)\r | |
562 | {\r | |
563 | char *cptr;\r | |
564 | int32 val;\r | |
565 | \r | |
566 | #define LONGEST_ROLL 1440000 /* longest is 120', 14400", 1,440,000 .01"s */\r | |
567 | \r | |
568 | val = strtotv (ptr, &cptr, (uint32) 10); /* sim routine to get value */\r | |
569 | if ((val < 1) | (val >= LONGEST_ROLL)) { /* check valid range */\r | |
570 | if (IS_DEBUG) printf("setting paper more than 120' or less than 1 inch\n");\r | |
571 | return SCPE_ARG;\r | |
572 | }\r | |
573 | \r | |
574 | /* origin zero drawing, reduce by 1 but show command will fudge by adding it back */\r | |
575 | *((int32 *)((REG *) desc)->loc) = val - 1;\r | |
576 | \r | |
577 | return SCPE_OK;\r | |
578 | }\r | |
579 | \r | |
580 | /* plot_set_pos - validate and store the new position of the carriage */\r | |
581 | \r | |
582 | static t_stat plot_set_pos (UNIT *uptr, int32 set, char *ptr, void *desc)\r | |
583 | {\r | |
584 | char *cptr;\r | |
585 | int32 val;\r | |
586 | int32 max;\r | |
587 | \r | |
588 | max = (set == 1) ? plot_ymax : plot_xmax;\r | |
589 | val = strtotv (ptr, &cptr, (uint32) 10);\r | |
590 | if ((val < 0) | (val > max)) {\r | |
591 | if (IS_DEBUG) printf("error moving carriage off paper edge\n");\r | |
592 | return SCPE_ARG;\r | |
593 | }\r | |
594 | \r | |
595 | *((int32 *)((REG *) desc)->loc) = val;\r | |
596 | \r | |
597 | return SCPE_OK;\r | |
598 | }\r | |
599 | \r | |
600 | /* routine to display the paper length and carriage position\r | |
601 | * cannot use regular simh routine because it prints values twice,\r | |
602 | * once for device and once for unit\r | |
603 | */\r | |
604 | \r | |
605 | static t_stat plot_show_vals (FILE *fp, UNIT *uptr, int32 val, void *descrip)\r | |
606 | {\r | |
607 | fprintf(fp, "length=%d, Xpos=%d, Ypos=%d",plot_xmax+1, plot_xpos,plot_ypos);\r | |
608 | return SCPE_OK;\r | |
609 | }\r | |
610 | \r | |
611 | /* routine to add a terminating NL character when 'show plot length'\r | |
612 | * or equivalent for xpos or ypos is issued, as simh will not append for us */\r | |
613 | \r | |
614 | static t_stat plot_show_nl(FILE *fp, UNIT *uptr, int32 val, void *descrip)\r | |
615 | {\r | |
616 | int32 disp;\r | |
617 | char *label;\r | |
618 | \r | |
619 | disp = (val == 2) ? plot_xmax + 1 : ((val == 1) ? plot_ypos : plot_xpos);\r | |
620 | label = (val == 2) ? "length=" : ((val == 1) ? "Ypos=" : "Xpos=");\r | |
621 | \r | |
622 | fprintf(fp, "%s%d\n", label, disp);\r | |
623 | return SCPE_OK;\r | |
624 | }\r | |
625 | \r | |
626 | /* plot_validate_change - force the update_pen routine to be called after user changes pen setting */\r | |
627 | \r | |
628 | static t_stat plot_validate_change (UNIT *uptr, int32 set, char *ptr, void *desc)\r | |
629 | {\r | |
630 | need_update = 1;\r | |
631 | return SCPE_OK;\r | |
632 | }\r | |
633 | \r | |
634 | #endif /* ENABLE_PLOT_SUPPORT */\r |