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
23static u64 first_time, last_time;
24static u64 turbo_frequency, max_freq;
25
26
27#define SLOT_MULT 30.0
28#define SLOT_HEIGHT 25.0
29
30int svg_page_width = 1000;
31
32#define MIN_TEXT_SIZE 0.01
33
34static u64 total_height;
35static FILE *svgfile;
36
37static double cpu2slot(int cpu)
38{
39	return 2 * cpu + 1;
40}
41
42static double cpu2y(int cpu)
43{
44	return cpu2slot(cpu) * SLOT_MULT;
45}
46
47static 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 */
59static 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
74void 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
122void 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
131void 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
153static 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
171void 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=\"0\" width=\"%4.8f\" y=\"0\" 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
203static 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
236void 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
258void 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=\"0\" width=\"%4.8f\" y=\"0\" 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
282void 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
311static 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
335void 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
353void 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
400void 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
422void 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
433void 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
442static 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=\"0\" 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
453void 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
467void 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
494void svg_close(void)
495{
496	if (svgfile) {
497		fprintf(svgfile, "</svg>\n");
498		fclose(svgfile);
499		svgfile = NULL;
500	}
501}
502