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Linux Cubed Series 2: Applications
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Linux Cubed Series 2 - Applications.iso
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math
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gle-3.000
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gle-3
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d_bmp.c
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C/C++ Source or Header
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1995-02-07
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13KB
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579 lines
/*--------------------------------------------------------------*/
/* Bitmap Driver 1.0 (VAX C, TURBO C) , for GLE V3.0 */
/*--------------------------------------------------------------*/
/* This version writes the PATH to a temporary file which can
/* then be read by a bitmap driver (which has more memory available) */
/*---------------------------------------------------------------------------*/
#include "all.h"
#include <math.h>
#include "core.h"
#include "mygraph.h"
#include "mydev.h"
#ifndef __TURBOC__
#define huge
#else
#include <alloc.h>
#endif
extern int dev_fill,dev_font;
extern int gunit;
extern struct gmodel g;
/*---------------------------------------------------------------------------*/
#define pi 3.141592653
#define false 0
#define true (!false)
#define dbg if ((gle_debug & 64)>0)
extern int gle_debug;
int getch(void);
int kbhit(void);
int path_newpath(void);
int path_lwidth(float x);
int path_stroke(void);
int path_fill(void);
int path_lstyle(int32 x);
int path_dashlen(float x);
int path_dline(float x,float y);
int path_size(float x,float y);
int path_row(float x1, float y1, float x2, float y2);
int path_box(float x1, float y1, float x2, float y2);
int dpath_box(double x1, double y1, double x2, double y2);
int path_alloc(void);
int path_move(float x1, float y1);
int path_line(float x1, float y1);
int path_closepath(void);
/*---------------------------------------------------------------------------*/
int32 d_curcolor,d_curfill;
/*---------------------------------------------------------------------------*/
/* Path variables for bitmap */
typedef union {int32 l; float f;} longfloat;
longfloat *path;
int npath;
int npath_alloc;
#include "dvipath.h"
path_reset()
{
}
path_newpath(void)
{
path_alloc();
path[npath++].l = p_newpath;
}
path_move(float x,float y)
{
path_alloc();
path[npath++].l = p_move;
path[npath++].f = x;
path[npath++].f = y;
}
path_lwidth(float x)
{
path_alloc();
path[npath++].l = p_lwidth;
path[npath++].f = x;
}
path_setcolor(int r, int g, int b, int f)
{
path_alloc();
path[npath++].l = p_setcolor;
path[npath++].l = r;
path[npath++].l = g;
path[npath++].l = b;
path[npath++].l = f;
}
path_stroke(void)
{
path_alloc();
path[npath++].l = p_stroke;
}
path_fill(void)
{
path_alloc();
path[npath++].l = p_fill;
}
path_int(int x)
{
path_alloc();
path[npath++].l = x;
}
path_lstyle(int32 x)
{
path_alloc();
path[npath++].l = p_lstyle;
path[npath++].l = x;
}
path_dline(float x,float y)
{
path_alloc();
path[npath++].l = p_dline;
path[npath++].f = x;
path[npath++].f = y;
}
path_size(float x,float y)
{
path_alloc();
path[npath++].l = p_size;
path[npath++].f = x;
path[npath++].f = y;
}
path_dashlen(float x)
{
path_alloc();
path[npath++].l = p_dashlen;
path[npath++].f = x;
}
path_line(float x,float y)
{
path_alloc();
path[npath++].l = p_line;
path[npath++].f = x;
path[npath++].f = y;
}
path_bezier(float x1, float y1, float x2, float y2,float x3, float y3)
{
path_alloc();
path[npath++].l = p_bezier;
path[npath++].f = x1; path[npath++].f = y1;
path[npath++].f = x2; path[npath++].f = y2;
path[npath++].f = x3; path[npath++].f = y3;
}
path_closepath()
{
path_alloc();
path[npath++].l = p_closepath;
}
path_box(float x1, float y1, float x2, float y2)
{
path_move(x1,y1);
path_line(x2,y1);
path_line(x2,y2);
path_line(x1,y2);
path_closepath();
}
path_alloc(void)
{
static int npa;
int32 *a;
if (npath > 100) path_flush();
if (npath < (npath_alloc-20)) return;
npath_alloc = 20 + 2 * npath;
a = myallocz(npath_alloc*sizeof(int32));
if (a==NULL) {
gle_abort("Unable to allocate memory for path \n");
}
if (path != NULL) {
memcpy(a,path,(npa)*sizeof(int32));
myfree(path);
}
npa = npath_alloc;
path = (longfloat *) a;
}
path_free(void)
{
if (path==NULL) return;
myfree(path);
path = NULL;
npath = 0;
npath_alloc = 0;
}
d_devcmd(char *s)
{}
dxy(double x, double y, float *dx, float *dy)
{
static double fx,fy;
g_dev(x,y,&fx,&fy);
*dx = fx;
*dy = fy;
}
rxy(double x, double y, int *dx, int *dy)
{
static double fx,fy,zx,zy;
g_dev(x,y,&fx,&fy);
g_dev(0.0,0.0,&zx,&zy);
*dx = (int) ( (fx-zx) );
*dy = (int) ( (fy-zy) );
}
/*---------------------------------------------------------------------------*/
d_dfont(char *c)
{
/* only used for the DFONT driver which builds fonts (never used)*/
}
/*---------------------------------------------------------------------------*/
d_message(char *s)
{
printf("%s\n",s);
}
/*---------------------------------------------------------------------------*/
d_source(char *s)
{
s=s;
}
/*---------------------------------------------------------------------------*/
d_get_type(char *t)
{
strcpy(t,"OUTPUT, BITMAP, BLACKANDWHITE, HARDCOPY, FILLPATH");
}
/*---------------------------------------------------------------------------*/
d_set_path(int onoff)
{
}
/*---------------------------------------------------------------------------*/
d_newpath()
{
path_flush();
path_newpath();
}
/*---------------------------------------------------------------------------*/
FILE *dout;
path_flush(void)
{
if (npath>0) fwrite(path,sizeof(int32),npath,dout);
npath = 0;
}
d_open(double width, double height)
{
char *outfile;
outfile = "out.dvi";
dout = fopen(outfile,"wb");
if (dout == NULL) gle_abort("Unable to open OUT.dvi epson output file \n");
path_alloc();
path_size(width,height);
if (!dev_font) plotter_fonts();
}
/*---------------------------------------------------------------------------*/
d_tidyup()
{
gprint("AARRRrrrrgg, watch out I'm dying!!!\n");
}
d_close()
{
g_flush();
path_flush();
path_free();
fclose(dout);
#ifndef unix
#ifdef DJ /* a.r. */
printf("Now enter one of:\n");
printf(" gle_dvip -depson [-hires] (to print to a dot matrix printer)\n");
printf(" gle_dvip -dlj [-hires] (to print to HP LaserJet/Deskjet)\n");
printf(" gle_dvip -dpj [-hires] (to print to HP Paintjet)\n");
printf(" gle_dvip -dvt (Preview on screen)\n");
printf(" gle_dvip (to see other valid qualifiers)\n");
#else
printf("Now enter one of:\n");
printf(" dviprint -depson [-hires] (to print to a dot matrix printer)\n");
printf(" dviprint -dlj [-hires] (to print to HP LaserJet/Deskjet)\n");
printf(" dviprint -dpj [-hires] (to print to HP Paintjet)\n");
printf(" dviprint -dvt (Preview on screen)\n");
printf(" dviprint (to see other valid qualifiers)\n");
#endif
#endif
}
/*---------------------------------------------------------------------------*/
d_set_line_cap(int i)
{
i++;
}
/*---------------------------------------------------------------------------*/
d_set_line_join(int i)
{
i++;
}
/*---------------------------------------------------------------------------*/
d_set_line_miterlimit(double d)
{
int i=0;
i++;
}
/*---------------------------------------------------------------------------*/
d_set_line_width(double w)
{
float dx,dy,zx,zy;
dxy(w,w,&dx,&dy);
dxy(0.0,0.0,&zx,&zy);
path_lwidth(sqrt(pow(dx-zx,2) + pow(dy-zy,2)));
path_lwidth(w);
}
/*---------------------------------------------------------------------------*/
d_set_line_styled(double dd)
{
path_dashlen(dd);
}
d_set_line_style(char *s)
{
static char *defline[] = {"","","12","41","14","92",
"1282","9229","4114","54"};
int i,j,nblack,nwhite;
char *ss;
int32 pat;
/* lstyle pattern output in dvi file is a 32 bit integer:
First 27 bits (starting with MSB) is the pattern, last 5 bits
(bits 0 to 4) is one less than the number of the last bit in the pattern.
This allows continuous patterns (no funny glitches every 32 dots).
*/
if (!g.inpath) g_flush();
if (strlen(s)==1) s = defline[*s-'0'];
if (strcmp(s,"")==0) {
pat = 0x8000001e; /* pattern is one dot repeated */
path_lstyle(pat);
return;
}
ss = s;
pat = 0; /* make up to 27 bit pattern from digits */
for (i=31; i>4;) {
nblack = *s - '0';
s++;
for (j=0; j<nblack; j++) {
pat = pat | (1L << i);
i--;
}
if (*s == 0) s = ss; /* if odd number of digits, repeat */
nwhite = *s - '0';
s++;
i = i - nwhite;
if (*s == 0) { /* stop if at end of digit string */
if (i < 4) i = 4;
pat = (pat & 0xffffffe0) | i;
break;
}
}
path_lstyle(pat);
/* printf ("Pattern: %s %X %d\n", ss, pat, pat&0x1f); */
}
/*---------------------------------------------------------------------------*/
d_fill()
{
set_fill();
path_fill();
set_color();
}
/*---------------------------------------------------------------------------*/
d_fill_ary(int nwk,double (*wkx)[],double (*wky)[])
{
int i;
path_move( (*wkx)[0], (*wky)[0]);
for (i=1;i<nwk;i++) {
path_line( (*wkx)[i], (*wky)[i]);
}
d_fill();
}
d_line_ary(int nwk,double (*wkx)[],double (*wky)[])
{
int i;
path_move( (*wkx)[0], (*wky)[0]);
for (i=1;i<nwk;i++) {
path_line( (*wkx)[i], (*wky)[i]);
}
d_stroke();
}
/*---------------------------------------------------------------------------*/
d_stroke()
{
path_stroke();
}
/*---------------------------------------------------------------------------*/
d_clip()
{
path_int(p_clip);
}
/*---------------------------------------------------------------------------*/
d_set_matrix(double newmat[3][3])
{
}
/*---------------------------------------------------------------------------*/
d_move(double zx,double zy)
{
}
/*---------------------------------------------------------------------------*/
d_reverse() /* reverse the order of stuff in the current path */
{
}
/*---------------------------------------------------------------------------*/
d_closepath()
{
path_closepath();
}
int bit_line( double x, double y);
/*---------------------------------------------------------------------------*/
d_line(double zx,double zy)
{
float dx,dy;
if (g.xinline==false) {
dxy(g.curx,g.cury,&dx,&dy);
path_move(dx,dy);
}
if (g.inpath==false) {
dxy(zx,zy,&dx,&dy);
path_dline(dx,dy);
return;
}
dxy(zx,zy,&dx,&dy);
path_line(dx,dy);
}
/*---------------------------------------------------------------------------*/
d_clear()
{
}
/*---------------------------------------------------------------------------*/
d_flush()
{
}
/*---------------------------------------------------------------------------*/
d_arcto(dbl x1,dbl y1,dbl x2,dbl y2,dbl rrr)
{
df_arcto(x1,y1,x2,y2,rrr);
}
/*---------------------------------------------------------------------------*/
d_arc(dbl r,dbl t1,dbl t2,dbl cx,dbl cy)
{
df_arc(r,t1,t2,cx,cy);
}
/*---------------------------------------------------------------------------*/
d_narc(dbl r,dbl t1,dbl t2,dbl cx,dbl cy)
{
/* swap t1 t2 a.r. */
df_arc(r,t2,t1,cx,cy);
}
/*---------------------------------------------------------------------------*/
d_box_fill(dbl x1, dbl y1, dbl x2, dbl y2)
{
set_fill();
if (g.inpath==true) dpath_box(x1,y1,x2,y2);
else {
g_flush();
d_newpath();
dpath_box(x1,y1,x2,y2);
d_fill();
}
set_color();
}
d_box_stroke(dbl x1, dbl y1, dbl x2, dbl y2)
{
if (g.inpath==true) df_box_stroke(x1,y1,x2,y2);
else {
g_flush();
d_newpath();
df_box_stroke(x1,y1,x2,y2);
d_stroke();
}
}
/*---------------------------------------------------------------------------*/
d_circle_stroke(double zr)
{
double xx,yy;
g_get_xy(&xx,&yy);
df_circle_stroke(zr);
g_move(xx,yy);
}
d_circle_fill(double zr)
{
int savep;
double xx,yy;
g_get_xy(&xx,&yy);
savep = g.inpath;
if (!g.inpath) {g_flush(); d_newpath();}
g.inpath = true;
set_fill();
df_circle_fill(zr);
d_fill();
set_color();
g.inpath = savep;
if (!g.inpath) {d_newpath();}
g_move(xx,yy);
}
/*---------------------------------------------------------------------------*/
int df_bezier(dbl x1,dbl y1,dbl x2,dbl y2,dbl x3,dbl y3);
d_bezier(dbl x1,dbl y1,dbl x2,dbl y2,dbl x3,dbl y3)
{
float dx1,dy1,dx2,dy2,dx3,dy3,dx0,dy0;
if (!g.xinline || !g.inpath) {
dxy(g.curx,g.cury,&dx0,&dy0);
path_move(dx0,dy0);
}
dxy(x1,y1,&dx1,&dy1);
dxy(x2,y2,&dx2,&dy2);
dxy(x3,y3,&dx3,&dy3);
path_bezier(dx1,dy1,dx2,dy2,dx3,dy3);
if (!g.inpath) {d_stroke(); d_newpath();}
}
dpath_box(dbl x1,dbl y1,dbl x2,dbl y2)
{
float dx1,dy1,dx2,dy2,dx3,dy3,dx4,dy4;
dxy(x1,y1,&dx1,&dy1);
dxy(x2,y1,&dx2,&dy2);
dxy(x2,y2,&dx3,&dy3);
dxy(x1,y2,&dx4,&dy4);
path_move(dx1,dy1);
path_line(dx2,dy2);
path_line(dx3,dy3);
path_line(dx4,dy4);
path_closepath();
}
/*---------------------------------------------------------------------------*/
set_color()
{
colortyp cc;
cc.l = d_curcolor;
path_setcolor(cc.b[B_R],cc.b[B_G],cc.b[B_B],cc.b[B_F]);
}
set_fill()
{
colortyp cc;
cc.l = d_curfill;
path_setcolor(cc.b[B_R],cc.b[B_G],cc.b[B_B],cc.b[B_F]);
}
d_set_color(int32 f)
{
d_curcolor = f;
set_color();
}
d_set_fill(int32 f)
{
d_curfill = f;
}
/*---------------------------------------------------------------------------*/
d_beginclip()
{
path_int(p_saveclip);
}
d_endclip()
{
path_int(p_restoreclip);
}
struct char_data {float wx,wy,x1,y1,x2,y2; };
int font_get_chardata(struct char_data **cd, int ff, int cc);
/*---------------------------------------------------------------------------*/
int safnt;
int simple_char(int cc);
d_char(int font, int cc)
{
static struct char_data cd;
static int ix1,ix2,iy1,iy2;
static int ux,uy;
char ss[2];
ss[0] = cc;
ss[1] = 0;
if (safnt==0) safnt = pass_font("PLSR");
if (font_get_encoding(font)>2) {
my_char(font,cc);
return;
}
my_char(safnt,cc);
}