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TOMOYO Linux Cross Reference
Linux/tools/perf/util/svghelper.c

Version: ~ [ linux-5.4-rc3 ] ~ [ linux-5.3.6 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.79 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.149 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.196 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.196 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.75 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  * svghelper.c - helper functions for outputting svg
  3  *
  4  * (C) Copyright 2009 Intel Corporation
  5  *
  6  * Authors:
  7  *     Arjan van de Ven <arjan@linux.intel.com>
  8  *
  9  * This program is free software; you can redistribute it and/or
 10  * modify it under the terms of the GNU General Public License
 11  * as published by the Free Software Foundation; version 2
 12  * of the License.
 13  */
 14 
 15 #include <inttypes.h>
 16 #include <stdio.h>
 17 #include <stdlib.h>
 18 #include <unistd.h>
 19 #include <string.h>
 20 
 21 #include "svghelper.h"
 22 
 23 static u64 first_time, last_time;
 24 static u64 turbo_frequency, max_freq;
 25 
 26 
 27 #define SLOT_MULT 30.0
 28 #define SLOT_HEIGHT 25.0
 29 
 30 int svg_page_width = 1000;
 31 
 32 #define MIN_TEXT_SIZE 0.01
 33 
 34 static u64 total_height;
 35 static FILE *svgfile;
 36 
 37 static double cpu2slot(int cpu)
 38 {
 39         return 2 * cpu + 1;
 40 }
 41 
 42 static double cpu2y(int cpu)
 43 {
 44         return cpu2slot(cpu) * SLOT_MULT;
 45 }
 46 
 47 static double time2pixels(u64 __time)
 48 {
 49         double X;
 50 
 51         X = 1.0 * svg_page_width * (__time - first_time) / (last_time - first_time);
 52         return X;
 53 }
 54 
 55 /*
 56  * Round text sizes so that the svg viewer only needs a discrete
 57  * number of renderings of the font
 58  */
 59 static double round_text_size(double size)
 60 {
 61         int loop = 100;
 62         double target = 10.0;
 63 
 64         if (size >= 10.0)
 65                 return size;
 66         while (loop--) {
 67                 if (size >= target)
 68                         return target;
 69                 target = target / 2.0;
 70         }
 71         return size;
 72 }
 73 
 74 void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end)
 75 {
 76         int new_width;
 77 
 78         svgfile = fopen(filename, "w");
 79         if (!svgfile) {
 80                 fprintf(stderr, "Cannot open %s for output\n", filename);
 81                 return;
 82         }
 83         first_time = start;
 84         first_time = first_time / 100000000 * 100000000;
 85         last_time = end;
 86 
 87         /*
 88          * if the recording is short, we default to a width of 1000, but
 89          * for longer recordings we want at least 200 units of width per second
 90          */
 91         new_width = (last_time - first_time) / 5000000;
 92 
 93         if (new_width > svg_page_width)
 94                 svg_page_width = new_width;
 95 
 96         total_height = (1 + rows + cpu2slot(cpus)) * SLOT_MULT;
 97         fprintf(svgfile, "<?xml version=\"1.0\" standalone=\"no\"?> \n");
 98         fprintf(svgfile, "<svg width=\"%i\" height=\"%" PRIu64 "\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n", svg_page_width, total_height);
 99 
100         fprintf(svgfile, "<defs>\n  <style type=\"text/css\">\n    <![CDATA[\n");
101 
102         fprintf(svgfile, "      rect          { stroke-width: 1; }\n");
103         fprintf(svgfile, "      rect.process  { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:1;   stroke:rgb(  0,  0,  0); } \n");
104         fprintf(svgfile, "      rect.process2 { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
105         fprintf(svgfile, "      rect.sample   { fill:rgb(  0,  0,255); fill-opacity:0.8; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
106         fprintf(svgfile, "      rect.blocked  { fill:rgb(255,  0,  0); fill-opacity:0.5; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
107         fprintf(svgfile, "      rect.waiting  { fill:rgb(224,214,  0); fill-opacity:0.8; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
108         fprintf(svgfile, "      rect.WAITING  { fill:rgb(255,214, 48); fill-opacity:0.6; stroke-width:0;   stroke:rgb(  0,  0,  0); } \n");
109         fprintf(svgfile, "      rect.cpu      { fill:rgb(192,192,192); fill-opacity:0.2; stroke-width:0.5; stroke:rgb(128,128,128); } \n");
110         fprintf(svgfile, "      rect.pstate   { fill:rgb(128,128,128); fill-opacity:0.8; stroke-width:0; } \n");
111         fprintf(svgfile, "      rect.c1       { fill:rgb(255,214,214); fill-opacity:0.5; stroke-width:0; } \n");
112         fprintf(svgfile, "      rect.c2       { fill:rgb(255,172,172); fill-opacity:0.5; stroke-width:0; } \n");
113         fprintf(svgfile, "      rect.c3       { fill:rgb(255,130,130); fill-opacity:0.5; stroke-width:0; } \n");
114         fprintf(svgfile, "      rect.c4       { fill:rgb(255, 88, 88); fill-opacity:0.5; stroke-width:0; } \n");
115         fprintf(svgfile, "      rect.c5       { fill:rgb(255, 44, 44); fill-opacity:0.5; stroke-width:0; } \n");
116         fprintf(svgfile, "      rect.c6       { fill:rgb(255,  0,  0); fill-opacity:0.5; stroke-width:0; } \n");
117         fprintf(svgfile, "      line.pstate   { stroke:rgb(255,255,  0); stroke-opacity:0.8; stroke-width:2; } \n");
118 
119         fprintf(svgfile, "    ]]>\n   </style>\n</defs>\n");
120 }
121 
122 void svg_box(int Yslot, u64 start, u64 end, const char *type)
123 {
124         if (!svgfile)
125                 return;
126 
127         fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"%s\"/>\n",
128                 time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT, type);
129 }
130 
131 void svg_sample(int Yslot, int cpu, u64 start, u64 end)
132 {
133         double text_size;
134         if (!svgfile)
135                 return;
136 
137         fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"sample\"/>\n",
138                 time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT);
139 
140         text_size = (time2pixels(end)-time2pixels(start));
141         if (cpu > 9)
142                 text_size = text_size/2;
143         if (text_size > 1.25)
144                 text_size = 1.25;
145         text_size = round_text_size(text_size);
146 
147         if (text_size > MIN_TEXT_SIZE)
148                 fprintf(svgfile, "<text x=\"%1.8f\" y=\"%1.8f\" font-size=\"%1.8fpt\">%i</text>\n",
149                         time2pixels(start), Yslot *  SLOT_MULT + SLOT_HEIGHT - 1, text_size,  cpu + 1);
150 
151 }
152 
153 static char *time_to_string(u64 duration)
154 {
155         static char text[80];
156 
157         text[0] = 0;
158 
159         if (duration < 1000) /* less than 1 usec */
160                 return text;
161 
162         if (duration < 1000 * 1000) { /* less than 1 msec */
163                 sprintf(text, "%4.1f us", duration / 1000.0);
164                 return text;
165         }
166         sprintf(text, "%4.1f ms", duration / 1000.0 / 1000);
167 
168         return text;
169 }
170 
171 void svg_waiting(int Yslot, u64 start, u64 end)
172 {
173         char *text;
174         const char *style;
175         double font_size;
176 
177         if (!svgfile)
178                 return;
179 
180         style = "waiting";
181 
182         if (end-start > 10 * 1000000) /* 10 msec */
183                 style = "WAITING";
184 
185         text = time_to_string(end-start);
186 
187         font_size = 1.0 * (time2pixels(end)-time2pixels(start));
188 
189         if (font_size > 3)
190                 font_size = 3;
191 
192         font_size = round_text_size(font_size);
193 
194         fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\">\n", time2pixels(start), Yslot * SLOT_MULT);
195         fprintf(svgfile, "<rect x=\"\" width=\"%4.8f\" y=\"\" height=\"%4.1f\" class=\"%s\"/>\n",
196                 time2pixels(end)-time2pixels(start), SLOT_HEIGHT, style);
197         if (font_size > MIN_TEXT_SIZE)
198                 fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%1.8fpt\"> %s</text>\n",
199                         font_size, text);
200         fprintf(svgfile, "</g>\n");
201 }
202 
203 static char *cpu_model(void)
204 {
205         static char cpu_m[255];
206         char buf[256];
207         FILE *file;
208 
209         cpu_m[0] = 0;
210         /* CPU type */
211         file = fopen("/proc/cpuinfo", "r");
212         if (file) {
213                 while (fgets(buf, 255, file)) {
214                         if (strstr(buf, "model name")) {
215                                 strncpy(cpu_m, &buf[13], 255);
216                                 break;
217                         }
218                 }
219                 fclose(file);
220         }
221 
222         /* CPU type */
223         file = fopen("/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies", "r");
224         if (file) {
225                 while (fgets(buf, 255, file)) {
226                         unsigned int freq;
227                         freq = strtoull(buf, NULL, 10);
228                         if (freq > max_freq)
229                                 max_freq = freq;
230                 }
231                 fclose(file);
232         }
233         return cpu_m;
234 }
235 
236 void svg_cpu_box(int cpu, u64 __max_freq, u64 __turbo_freq)
237 {
238         char cpu_string[80];
239         if (!svgfile)
240                 return;
241 
242         max_freq = __max_freq;
243         turbo_frequency = __turbo_freq;
244 
245         fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"cpu\"/>\n",
246                 time2pixels(first_time),
247                 time2pixels(last_time)-time2pixels(first_time),
248                 cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
249 
250         sprintf(cpu_string, "CPU %i", (int)cpu+1);
251         fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\">%s</text>\n",
252                 10+time2pixels(first_time), cpu2y(cpu) + SLOT_HEIGHT/2, cpu_string);
253 
254         fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\" font-size=\"1.25pt\">%s</text>\n",
255                 10+time2pixels(first_time), cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - 4, cpu_model());
256 }
257 
258 void svg_process(int cpu, u64 start, u64 end, const char *type, const char *name)
259 {
260         double width;
261 
262         if (!svgfile)
263                 return;
264 
265 
266         fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\">\n", time2pixels(start), cpu2y(cpu));
267         fprintf(svgfile, "<rect x=\"\" width=\"%4.8f\" y=\"\" height=\"%4.1f\" class=\"%s\"/>\n",
268                 time2pixels(end)-time2pixels(start), SLOT_MULT+SLOT_HEIGHT, type);
269         width = time2pixels(end)-time2pixels(start);
270         if (width > 6)
271                 width = 6;
272 
273         width = round_text_size(width);
274 
275         if (width > MIN_TEXT_SIZE)
276                 fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%3.8fpt\">%s</text>\n",
277                         width, name);
278 
279         fprintf(svgfile, "</g>\n");
280 }
281 
282 void svg_cstate(int cpu, u64 start, u64 end, int type)
283 {
284         double width;
285         char style[128];
286 
287         if (!svgfile)
288                 return;
289 
290 
291         if (type > 6)
292                 type = 6;
293         sprintf(style, "c%i", type);
294 
295         fprintf(svgfile, "<rect class=\"%s\" x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\"/>\n",
296                 style,
297                 time2pixels(start), time2pixels(end)-time2pixels(start),
298                 cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
299 
300         width = (time2pixels(end)-time2pixels(start))/2.0;
301         if (width > 6)
302                 width = 6;
303 
304         width = round_text_size(width);
305 
306         if (width > MIN_TEXT_SIZE)
307                 fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\" font-size=\"%3.8fpt\">C%i</text>\n",
308                         time2pixels(start), cpu2y(cpu)+width, width, type);
309 }
310 
311 static char *HzToHuman(unsigned long hz)
312 {
313         static char buffer[1024];
314         unsigned long long Hz;
315 
316         memset(buffer, 0, 1024);
317 
318         Hz = hz;
319 
320         /* default: just put the Number in */
321         sprintf(buffer, "%9lli", Hz);
322 
323         if (Hz > 1000)
324                 sprintf(buffer, " %6lli Mhz", (Hz+500)/1000);
325 
326         if (Hz > 1500000)
327                 sprintf(buffer, " %6.2f Ghz", (Hz+5000.0)/1000000);
328 
329         if (Hz == turbo_frequency)
330                 sprintf(buffer, "Turbo");
331 
332         return buffer;
333 }
334 
335 void svg_pstate(int cpu, u64 start, u64 end, u64 freq)
336 {
337         double height = 0;
338 
339         if (!svgfile)
340                 return;
341 
342         if (max_freq)
343                 height = freq * 1.0 / max_freq * (SLOT_HEIGHT + SLOT_MULT);
344         height = 1 + cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - height;
345         fprintf(svgfile, "<line x1=\"%4.8f\" x2=\"%4.8f\" y1=\"%4.1f\" y2=\"%4.1f\" class=\"pstate\"/>\n",
346                 time2pixels(start), time2pixels(end), height, height);
347         fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\" font-size=\"0.25pt\">%s</text>\n",
348                 time2pixels(start), height+0.9, HzToHuman(freq));
349 
350 }
351 
352 
353 void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2)
354 {
355         double height;
356 
357         if (!svgfile)
358                 return;
359 
360 
361         if (row1 < row2) {
362                 if (row1) {
363                         fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
364                                 time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
365                         if (desc2)
366                                 fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &gt;</text></g>\n",
367                                         time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_HEIGHT/48, desc2);
368                 }
369                 if (row2) {
370                         fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
371                                 time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32,  time2pixels(start), row2 * SLOT_MULT);
372                         if (desc1)
373                                 fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &gt;</text></g>\n",
374                                         time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, desc1);
375                 }
376         } else {
377                 if (row2) {
378                         fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
379                                 time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
380                         if (desc1)
381                                 fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &lt;</text></g>\n",
382                                         time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/48, desc1);
383                 }
384                 if (row1) {
385                         fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
386                                 time2pixels(start), row1 * SLOT_MULT - SLOT_MULT/32,  time2pixels(start), row1 * SLOT_MULT);
387                         if (desc2)
388                                 fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &lt;</text></g>\n",
389                                         time2pixels(start), row1 * SLOT_MULT - SLOT_HEIGHT/32, desc2);
390                 }
391         }
392         height = row1 * SLOT_MULT;
393         if (row2 > row1)
394                 height += SLOT_HEIGHT;
395         if (row1)
396                 fprintf(svgfile, "<circle  cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\"  style=\"fill:rgb(32,255,32)\"/>\n",
397                         time2pixels(start), height);
398 }
399 
400 void svg_wakeline(u64 start, int row1, int row2)
401 {
402         double height;
403 
404         if (!svgfile)
405                 return;
406 
407 
408         if (row1 < row2)
409                 fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
410                         time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row2 * SLOT_MULT);
411         else
412                 fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
413                         time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT,  time2pixels(start), row1 * SLOT_MULT);
414 
415         height = row1 * SLOT_MULT;
416         if (row2 > row1)
417                 height += SLOT_HEIGHT;
418         fprintf(svgfile, "<circle  cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\"  style=\"fill:rgb(32,255,32)\"/>\n",
419                         time2pixels(start), height);
420 }
421 
422 void svg_interrupt(u64 start, int row)
423 {
424         if (!svgfile)
425                 return;
426 
427         fprintf(svgfile, "<circle  cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\"  style=\"fill:rgb(255,128,128)\"/>\n",
428                         time2pixels(start), row * SLOT_MULT);
429         fprintf(svgfile, "<circle  cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\"  style=\"fill:rgb(255,128,128)\"/>\n",
430                         time2pixels(start), row * SLOT_MULT + SLOT_HEIGHT);
431 }
432 
433 void svg_text(int Yslot, u64 start, const char *text)
434 {
435         if (!svgfile)
436                 return;
437 
438         fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\">%s</text>\n",
439                 time2pixels(start), Yslot * SLOT_MULT+SLOT_HEIGHT/2, text);
440 }
441 
442 static void svg_legenda_box(int X, const char *text, const char *style)
443 {
444         double boxsize;
445         boxsize = SLOT_HEIGHT / 2;
446 
447         fprintf(svgfile, "<rect x=\"%i\" width=\"%4.8f\" y=\"\" height=\"%4.1f\" class=\"%s\"/>\n",
448                 X, boxsize, boxsize, style);
449         fprintf(svgfile, "<text transform=\"translate(%4.8f, %4.8f)\" font-size=\"%4.8fpt\">%s</text>\n",
450                 X + boxsize + 5, boxsize, 0.8 * boxsize, text);
451 }
452 
453 void svg_legenda(void)
454 {
455         if (!svgfile)
456                 return;
457 
458         svg_legenda_box(0,      "Running", "sample");
459         svg_legenda_box(100,    "Idle","c1");
460         svg_legenda_box(200,    "Deeper Idle", "c3");
461         svg_legenda_box(350,    "Deepest Idle", "c6");
462         svg_legenda_box(550,    "Sleeping", "process2");
463         svg_legenda_box(650,    "Waiting for cpu", "waiting");
464         svg_legenda_box(800,    "Blocked on IO", "blocked");
465 }
466 
467 void svg_time_grid(void)
468 {
469         u64 i;
470 
471         if (!svgfile)
472                 return;
473 
474         i = first_time;
475         while (i < last_time) {
476                 int color = 220;
477                 double thickness = 0.075;
478                 if ((i % 100000000) == 0) {
479                         thickness = 0.5;
480                         color = 192;
481                 }
482                 if ((i % 1000000000) == 0) {
483                         thickness = 2.0;
484                         color = 128;
485                 }
486 
487                 fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%" PRIu64 "\" style=\"stroke:rgb(%i,%i,%i);stroke-width:%1.3f\"/>\n",
488                         time2pixels(i), SLOT_MULT/2, time2pixels(i), total_height, color, color, color, thickness);
489 
490                 i += 10000000;
491         }
492 }
493 
494 void svg_close(void)
495 {
496         if (svgfile) {
497                 fprintf(svgfile, "</svg>\n");
498                 fclose(svgfile);
499                 svgfile = NULL;
500         }
501 }
502 

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