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https://github.com/Zenithsiz/ftmemsim-valgrind.git
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0954cfc526
ANSIfication of the hp2ps code. The most important changes are the correct use of the stdarg mechanism (former hacks could bite on other systems, so please tell upstream), inclusion of stdlib.h instead of declaring free yourself, adding a few missed PROTO()s and using size_t for xmalloc and xrealloc.: git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2399
170 lines
3.2 KiB
C
170 lines
3.2 KiB
C
/* This file is part of hp2ps, a graph drawer for memory profiles.
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Copyright (C) 2002 The University Court of the University of Glasgow.
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This program is governed by the license contained in the file LICENSE. */
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#include <stdio.h>
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#include <math.h>
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#include "Main.h"
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#include "Defines.h"
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#include "Dimensions.h"
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#include "HpFile.h"
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#include "Shade.h"
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#include "Utilities.h"
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/* own stuff */
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#include "Curves.h"
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static floatish *g_x; /* x and y values */
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static floatish *g_y;
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static floatish *g_py; /* previous y values */
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static void Curve PROTO((struct entry *)); /* forward */
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static void ShadeCurve
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PROTO((floatish *x, floatish *y, floatish *py, floatish shade));
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void
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Curves()
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{
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intish i;
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for (i = 0; i < nidents; i++) {
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Curve(identtable[i]);
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}
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}
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/*
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* Draw a curve, and fill the area that is below it and above
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* the previous curve.
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*/
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static void
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Curve(e)
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struct entry* e;
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{
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struct chunk* ch;
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int j;
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for (ch = e->chk; ch; ch = ch->next) {
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for (j = 0; j < ch->nd; j++) {
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g_y[ ch->d[j].bucket ] += ch->d[j].value;
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}
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}
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ShadeCurve(g_x, g_y, g_py, ShadeOf(e->name));
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}
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static void PlotCurveLeftToRight PROTO((floatish *, floatish *)); /* forward */
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static void PlotCurveRightToLeft PROTO((floatish *, floatish *)); /* forward */
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static void SaveCurve PROTO((floatish *, floatish *)); /* forward */
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/*
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* Map virtual x coord to physical x coord
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*/
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floatish
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xpage(x)
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floatish x;
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{
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return (x + graphx0);
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}
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/*
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* Map virtual y coord to physical y coord
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*/
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floatish
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ypage(y)
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floatish y;
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{
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return (y + graphy0);
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}
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/*
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* Fill the region bounded by two splines, using the given
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* shade.
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*/
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static void
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ShadeCurve(x, y, py, shade)
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floatish *x; floatish *y; floatish *py; floatish shade;
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{
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fprintf(psfp, "%f %f moveto\n", xpage(x[0]), ypage(py[0]));
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PlotCurveLeftToRight(x, py);
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fprintf(psfp, "%f %f lineto\n", xpage(x[nsamples - 1]),
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ypage(y[nsamples - 1]));
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PlotCurveRightToLeft(x, y);
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fprintf(psfp, "closepath\n");
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fprintf(psfp, "gsave\n");
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SetPSColour(shade);
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fprintf(psfp, "fill\n");
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fprintf(psfp, "grestore\n");
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fprintf(psfp, "stroke\n");
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SaveCurve(y, py);
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}
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static void
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PlotCurveLeftToRight(x,y)
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floatish *x; floatish *y;
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{
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intish i;
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for (i = 0; i < nsamples; i++) {
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fprintf(psfp, "%f %f lineto\n", xpage(x[i]), ypage(y[i]));
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}
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}
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static void
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PlotCurveRightToLeft(x,y)
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floatish *x; floatish *y;
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{
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intish i;
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for (i = nsamples - 1; i >= 0; i-- ) {
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fprintf(psfp, "%f %f lineto\n", xpage(x[i]), ypage(y[i]));
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}
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}
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/*
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* Save the curve coordinates stored in y[] in py[].
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*/
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static void
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SaveCurve(y, py)
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floatish *y; floatish* py;
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{
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intish i;
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for (i = 0; i < nsamples; i++) {
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py[i] = y[i];
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}
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}
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extern floatish xrange;
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void
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CurvesInit()
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{
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intish i;
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g_x = (floatish*) xmalloc(nsamples * sizeof(floatish));
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g_y = (floatish*) xmalloc(nsamples * sizeof(floatish));
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g_py = (floatish*) xmalloc(nsamples * sizeof(floatish));
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for (i = 0; i < nsamples; i++) {
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g_x[i] = ((samplemap[i] - samplemap[0])/ xrange) * graphwidth;
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g_y[i] = g_py[i] = 0.0;
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}
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}
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