15 Quaternion q = {1.,0.,0.,0.};
23 p3(double x, double y, double z, double w)
37 if(a->screen.z>b->screen.z)
39 if(a->screen.z<b->screen.z)
46 readcolmap(Display *d, RGB *cmap)
55 cmap[i].red = r|(r<<8)|(r<<16)|(r<<24);
56 cmap[i].green = g|(g<<8)|(g<<16)|(g<<24);
57 cmap[i].blue = b|(b<<8)|(b<<16)|(b<<24);
62 colorspace(RGB *cmap, Vert *v)
67 for(i=0;i!=ncolor;i++){
68 v[i].world.x=(cmap[i].red>>24)/255.-.5;
69 v[i].world.y=(cmap[i].green>>24)/255.-.5;
70 v[i].world.z=(cmap[i].blue>>24)/255.-.5;
75 viewport(view, viewrect, 1.);
76 persp(view, 30., 3., 7.);
77 look(view, p3(0., 0., -5., 1.), p3(0., 0., 0., 1.),
80 for(i=0;i!=ncolor;i++)
81 v[i].screen = xformpointd(v[i].world, 0, view);
88 line(image, Pt(a.screen.x, a.screen.y), Pt(b.screen.x, b.screen.y), 0, 0, 0, display->white, ZP);
99 readcolmap(display, cmap);
101 draw(image, image->r, bg, nil, Pt(0, 0));
103 if(m > Dy(viewrect)/2)
105 ellipse(image, addpt(viewrect.min, divpt(Pt(Dx(viewrect), Dy(viewrect)), 2)),
106 m, m, 1, display->white, ZP);
108 line3(v[0], v[0x36]);
109 line3(v[0x36], v[0x32]);
110 line3(v[0x32], v[0x3F]);
111 line3(v[0x3F], v[0]);
113 line3(v[0xF0], v[0xF3]);
114 line3(v[0xF3], v[0xFF]);
115 line3(v[0xFF], v[0xFC]);
116 line3(v[0xFC], v[0xF0]);
118 line3(v[0], v[0xF0]);
119 line3(v[0x36], v[0xF3]);
120 line3(v[0x32], v[0xFF]);
121 line3(v[0x3F], v[0xFC]);
123 qsort(v, ncolor, sizeof(Vert), (int(*)(const void*, const void*))cmp);
125 for(i=0; i!=ncolor; i++)
126 draw(image, rectaddpt(Rect(-3, -3, 4, 4), Pt(v[i].screen.x, v[i].screen.y)),
127 color[v[i].color], nil, Pt(0, 0));
128 draw(screen, image->r, image, nil, image->r.min);
129 flushimage(display, 1);
137 if(new && getwindow(display, Refnone) < 0){
138 fprint(2, "colors: can't reattach to window: %r\n");
141 draw(screen, screen->r, display->black, nil, ZP);
142 replclipr(screen, 0, insetrect(screen->r, 3));
143 viewrect = screen->clipr;
144 viewrect.min.y += stringsize(font, "0i").y + 5;
147 image = allocimage(display, viewrect, screen->chan, 0, DNofill);
148 dx = viewrect.max.x-viewrect.min.x;
149 dy = viewrect.max.y-viewrect.min.y;
151 viewrect.min.x=(viewrect.min.x+viewrect.max.x-dy)/2;
152 viewrect.max.x=viewrect.min.x+dy;
155 viewrect.min.y=(viewrect.min.y+viewrect.max.y-dx)/2;
156 viewrect.max.y=viewrect.min.y+dx;
159 fprint(2, "can't allocate image\n");
160 exits("bad allocimage");
166 void main(int argc, char **argv){
190 for(i=0;i!=ncolor;i++)
191 color[i] = allocimage(display, Rect(0, 0, 1, 1), CMAP8, 1, cmap2rgba(i));
193 bg = allocimage(display, Rect(0, 0, 2, 2), screen->chan, 1, DWhite);
194 draw(bg, Rect(0, 0, 1, 1), color[0], nil, Pt(0, 0));
195 draw(bg, Rect(1, 1, 2, 2), color[0], nil, Pt(0, 0));
197 bg = allocimage(display, Rect(0,0,1,1), screen->chan, 1, bgcol);
205 qball(viewrect, &m, &q, redraw, 0);
206 else if(m.buttons & 2){
207 readcolmap(display, cmap);
209 qsort(v, ncolor, sizeof(Vert), (int(*)(const void*, const void*))cmp);
211 for(i=ncolor-1; i!=0; i--){
212 if(ptinrect(m.xy, rectaddpt(Rect(-3, -3, 4, 4), Pt(v[i].screen.x, v[i].screen.y)))){
216 sprint(buf, "index %3d r %3ld g %3ld b %3ld",
221 p = addpt(screen->r.min, Pt(2,2));
222 draw(screen, Rpt(p, addpt(p, stringsize(font, buf))), display->black, nil, p);
223 string(screen, p, display->white, ZP, font, buf);
230 }else if(m.buttons&4){