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/*
* x11: draw smileyface
*/
#include <math.h>
#include <stdio.h>
/*
#include <X11/Xlib.h>
#include <X11/Xutil.h>
*/
#include "netmaze.h"
#include "x11smiley.h"
#define MAXSMHIGH 1024
#define SMBASE 128
#define MAXFACEANZ 768
extern struct shared_struct *sm;
struct data {
double w1;
double w2;
double y;
short step;
} datas[512];
struct sdata {
short x1;
short x2;
short step;
} winkel[128][512];
short lineanz[128];
XSegment facelines[MAXFACEANZ];
/*
extern GRAFIX grafix;
*/
extern GC whitegc;
void init_smiley(void)
{
short i,j=0,k,l,d;
short *data = smiley;
double w,s;
for(i=0,j=0;i<256;j++) /* Linewerte in Winkelwerte */
{
if(*data == 0x7fff)
{
datas[j].step = 1;
i++; data++;
}
else
{
datas[j].y = 128.0 * cos(asin((double) (128-i) / 128.0));
datas[j].w1 = asin((double) (*data++ - 128) / datas[j].y);
datas[j].w2 = asin((double) (*data++ - 128) / datas[j].y);
datas[j].step = 0;
}
}
for(i=0;i<128;i++) /* Winkelwerte in Winkel-Line-Werte */
{
w = M_PI * i / 128.0;
for(j=0,k=0,d=0,l=0;j<256;k++)
{
if(datas[k].step == 1)
{
winkel[i][l].step = 1; j++; l++;
}
else if((s = datas[k].w1 + w) < M_PI_2)
{
winkel[i][l].x1 = datas[k].y * sin(s);
if((s = datas[k].w2 + w) < M_PI_2)
winkel[i][l].x2 = datas[k].y * sin(s);
else
winkel[i][l].x2 = datas[k].y;
winkel[i][l].step = 0; d++; l++;
}
}
lineanz[i] = d;
}
}
void draw_smiley(Drawable wind,short x,short y,short win,short r)
{
short j,k,k1;
double scale,scale1,jmp=0.5;
int faceanz = 0,lclip,rclip;
lclip=(IMAGEWIDTH-WXSIZE)>>1;
rclip=lclip+WXSIZE-1;
scale1 = scale = (double) r / 128.0;
y -= r;
if(win < 0)
{
win = - win;
scale1 = -scale1;
}
if(lineanz[win] == 0) return;
for(j=0,k=0;j<256;j++) /* very simple test-drawroutine */
{
jmp += scale;
if(jmp >= 1)
{
k1 = k;
while(jmp >= 1)
{
k = k1;
while(winkel[win][k].step == 0)
{
if(faceanz < MAXFACEANZ)
{
facelines[faceanz].x1 = x+winkel[win][k].x1*scale1;
facelines[faceanz].x2 = x+winkel[win][k].x2*scale1;
facelines[faceanz].y1 = facelines[faceanz].y2 = y;
faceanz++;
}
k++;
}
y++; k++;
jmp -= 1;
}
}
else
{
while(winkel[win][k].step == 0) k++;
k++;
}
}
XDrawSegments(sm->grafix.display,wind,whitegc,facelines,faceanz);
}
void image_face(int x,int r,int win,int col)
{
int j,k,k1,y;
double scale,scale1,jmp=0.5;
extern void image_hline(int x1,int y1,int x2,int val);
int lclip=(IMAGEWIDTH-WXSIZE)>>1;
int rclip=((IMAGEWIDTH+WXSIZE)>>1)-1;
scale1 = scale = (double) r / 128.0;
if(win < 0)
{
win = - win;
scale1 = -scale1;
}
if(lineanz[win] == 0) return;
x += (IMAGEWIDTH>>1);
y = (IMAGEHEIGHT>>1) - r;
for(j=0,k=0;j<256;j++) /* very simple test-drawroutine */
{
jmp += scale;
if(jmp >= 1)
{
k1 = k;
while(jmp >= 1)
{
k = k1;
while(winkel[win][k].step == 0)
{
int xi1,xi2;
int x1=x+winkel[win][k].x1*scale1;
int x2=x+winkel[win][k].x2*scale1;
k++;
if(x1>x2)
{
if(x2<lclip)
{
if(x1<lclip)
continue;
x2=lclip;
}
if(x1>rclip)
{
if(x2>rclip)
continue;
x1=rclip;
}
image_hline(x2,y,x1,col);
}
else
{
if(x1<lclip)
{
if(x2<lclip)
continue;
x1=lclip;
}
if(x2>rclip)
{
if(x1>rclip)
continue;
x2=rclip;
}
image_hline(x1,y,x2,col);
}
}
y++; k++;
jmp -= 1;
}
}
else
{
while(winkel[win][k].step == 0) k++;
k++;
}
}
}
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