1 fd465540 2004-12-27 devnull #include <u.h>
  2 fd465540 2004-12-27 devnull #include <libc.h>
  3 fd465540 2004-12-27 devnull #include <draw.h>
  4 fd465540 2004-12-27 devnull #include <thread.h>
  5 fd465540 2004-12-27 devnull #include <keyboard.h>
  6 fd465540 2004-12-27 devnull #include <mouse.h>
  7 fd465540 2004-12-27 devnull 
  8 fd465540 2004-12-27 devnull enum
  9 fd465540 2004-12-27 devnull {
 10 fd465540 2004-12-27 devnull 	STACK = 8192,
 11 fd465540 2004-12-27 devnull };
 12 fd465540 2004-12-27 devnull 
 13 fd465540 2004-12-27 devnull int nbit, npix;
 14 fd465540 2004-12-27 devnull Image *pixel;
 15 fd465540 2004-12-27 devnull Rectangle crect[256];
 16 fd465540 2004-12-27 devnull Image *color[256];
 17 fd465540 2004-12-27 devnull char *fmt;
 18 fd465540 2004-12-27 devnull int ramp;
 19 fd465540 2004-12-27 devnull 
 20 fd465540 2004-12-27 devnull Mousectl *mousectl;
 21 fd465540 2004-12-27 devnull Keyboardctl *keyboardctl;
 22 fd465540 2004-12-27 devnull 
 23 fd465540 2004-12-27 devnull void keyboardthread(void*);
 24 fd465540 2004-12-27 devnull void mousethread(void*);
 25 fd465540 2004-12-27 devnull void resizethread(void*);
 26 fd465540 2004-12-27 devnull 
 27 fd465540 2004-12-27 devnull ulong
 28 fd465540 2004-12-27 devnull grey(int i)
 29 fd465540 2004-12-27 devnull {
 30 fd465540 2004-12-27 devnull 	if(i < 0)
 31 fd465540 2004-12-27 devnull 		return grey(0);
 32 fd465540 2004-12-27 devnull 	if(i > 255)
 33 fd465540 2004-12-27 devnull 		return grey(255);
 34 fd465540 2004-12-27 devnull 	return (i<<16)+(i<<8)+i;
 35 fd465540 2004-12-27 devnull }
 36 fd465540 2004-12-27 devnull 
 37 fd465540 2004-12-27 devnull int
 38 fd465540 2004-12-27 devnull dither[16] =  {
 39 fd465540 2004-12-27 devnull 	0, 8, 2, 10,
 40 fd465540 2004-12-27 devnull 	12, 4, 14, 6,
 41 fd465540 2004-12-27 devnull 	3, 11, 1, 9,
 42 fd465540 2004-12-27 devnull 	15, 7, 13, 5
 43 fd465540 2004-12-27 devnull };
 44 fd465540 2004-12-27 devnull 
 45 fd465540 2004-12-27 devnull void
 46 fd465540 2004-12-27 devnull threadmain(int argc, char *argv[])
 47 fd465540 2004-12-27 devnull {
 48 fd465540 2004-12-27 devnull 	int i, j, k, l;
 49 fd465540 2004-12-27 devnull 	Image *dark;
 50 fd465540 2004-12-27 devnull 
 51 fd465540 2004-12-27 devnull 	ramp = 0;
 52 fd465540 2004-12-27 devnull 
 53 fd465540 2004-12-27 devnull 	fmt = "index %3d r %3lud g %3lud b %3lud 0x%.8luX        ";
 54 fd465540 2004-12-27 devnull 	ARGBEGIN{
 55 fd465540 2004-12-27 devnull 	default:
 56 fd465540 2004-12-27 devnull 		goto Usage;
 57 fd465540 2004-12-27 devnull 	case 'x':
 58 fd465540 2004-12-27 devnull 		fmt = "index %2luX r %3luX g %3luX b %3luX 0x%.8luX       ";
 59 fd465540 2004-12-27 devnull 		break;
 60 fd465540 2004-12-27 devnull 	case 'r':
 61 fd465540 2004-12-27 devnull 		ramp = 1;
 62 fd465540 2004-12-27 devnull 		break;
 63 fd465540 2004-12-27 devnull 	}ARGEND
 64 fd465540 2004-12-27 devnull 
 65 fd465540 2004-12-27 devnull 	if(argc){
 66 fd465540 2004-12-27 devnull 	Usage:
 67 fd465540 2004-12-27 devnull 		fprint(2, "Usage: %s [-rx]\n", argv0);
 68 5ad21e86 2005-01-15 devnull 		threadexitsall("usage");
 69 fd465540 2004-12-27 devnull 	}
 70 fd465540 2004-12-27 devnull 
 71 d7925b13 2005-01-14 devnull 	if(initdraw(0, nil, "colors") < 0)
 72 fd465540 2004-12-27 devnull 		sysfatal("initdraw failed: %r");
 73 fd465540 2004-12-27 devnull 
 74 fd465540 2004-12-27 devnull 	mousectl = initmouse(nil, display->image);
 75 fd465540 2004-12-27 devnull 	if(mousectl == nil)
 76 fd465540 2004-12-27 devnull 		sysfatal("initmouse: %r");
 77 fd465540 2004-12-27 devnull 
 78 fd465540 2004-12-27 devnull 	keyboardctl = initkeyboard(nil);
 79 fd465540 2004-12-27 devnull 	if(keyboardctl == nil)
 80 fd465540 2004-12-27 devnull 		sysfatal("initkeyboard: %r");
 81 fd465540 2004-12-27 devnull 
 82 fd465540 2004-12-27 devnull 	for(i=0; i<256; i++){
 83 fd465540 2004-12-27 devnull 		if(ramp){
 84 fd465540 2004-12-27 devnull 			if(screen->chan == CMAP8){
 85 fd465540 2004-12-27 devnull 				/* dither the fine grey */
 86 fd465540 2004-12-27 devnull 				j = i-(i%17);
 87 fd465540 2004-12-27 devnull 				dark = allocimage(display, Rect(0,0,1,1), screen->chan, 1, (grey(j)<<8)+0xFF);
 88 fd465540 2004-12-27 devnull 				color[i] = allocimage(display, Rect(0,0,4,4), screen->chan, 1, (grey(j+17)<<8)+0xFF);
 89 fd465540 2004-12-27 devnull 				for(j=0; j<16; j++){
 90 fd465540 2004-12-27 devnull 					k = j%4;
 91 fd465540 2004-12-27 devnull 					l = j/4;
 92 fd465540 2004-12-27 devnull 					if(dither[j] > (i%17))
 93 fd465540 2004-12-27 devnull 						draw(color[i], Rect(k, l, k+1, l+1), dark, nil, ZP);
 94 fd465540 2004-12-27 devnull 				}
 95 fd465540 2004-12-27 devnull 				freeimage(dark);
 96 fd465540 2004-12-27 devnull 			}else
 97 fd465540 2004-12-27 devnull 				color[i] = allocimage(display, Rect(0,0,1,1), screen->chan, 1, (grey(i)<<8)+0xFF);
 98 fd465540 2004-12-27 devnull 		}else
 99 fd465540 2004-12-27 devnull 			color[i] = allocimage(display, Rect(0,0,1,1), screen->chan, 1, (cmap2rgb(i)<<8)+0xFF);
100 fd465540 2004-12-27 devnull 		if(color[i] == nil)
101 fd465540 2004-12-27 devnull 			sysfatal("can't allocate image: %r");
102 fd465540 2004-12-27 devnull 	}
103 fd465540 2004-12-27 devnull 
104 fd465540 2004-12-27 devnull 	threadcreate(mousethread, nil, STACK);
105 fd465540 2004-12-27 devnull 	threadcreate(keyboardthread, nil, STACK);
106 fd465540 2004-12-27 devnull 	threadcreate(resizethread, nil, STACK);
107 fd465540 2004-12-27 devnull }
108 fd465540 2004-12-27 devnull 
109 fd465540 2004-12-27 devnull void
110 fd465540 2004-12-27 devnull keyboardthread(void *v)
111 fd465540 2004-12-27 devnull {
112 fd465540 2004-12-27 devnull 	Rune r;
113 fd465540 2004-12-27 devnull 
114 fd465540 2004-12-27 devnull 	USED(v);
115 fd465540 2004-12-27 devnull 
116 fd465540 2004-12-27 devnull 	while(recv(keyboardctl->c, &r) >= 0)
117 fd465540 2004-12-27 devnull 		;
118 fd465540 2004-12-27 devnull }
119 fd465540 2004-12-27 devnull 
120 fd465540 2004-12-27 devnull char *buttons[] =
121 fd465540 2004-12-27 devnull {
122 fd465540 2004-12-27 devnull 	"exit",
123 fd465540 2004-12-27 devnull 	0
124 fd465540 2004-12-27 devnull };
125 fd465540 2004-12-27 devnull 
126 fd465540 2004-12-27 devnull Menu menu =
127 fd465540 2004-12-27 devnull {
128 fd465540 2004-12-27 devnull 	buttons
129 fd465540 2004-12-27 devnull };
130 fd465540 2004-12-27 devnull 
131 fd465540 2004-12-27 devnull void
132 fd465540 2004-12-27 devnull mousethread(void *v)
133 fd465540 2004-12-27 devnull {
134 fd465540 2004-12-27 devnull 	Point p;
135 fd465540 2004-12-27 devnull 	Mouse m;
136 fd465540 2004-12-27 devnull 	int i, n, prev;
137 fd465540 2004-12-27 devnull 	char buf[100];
138 fd465540 2004-12-27 devnull 	ulong rgb;
139 fd465540 2004-12-27 devnull 
140 fd465540 2004-12-27 devnull 	prev = -1;
141 fd465540 2004-12-27 devnull 	while(readmouse(mousectl) >= 0){
142 fd465540 2004-12-27 devnull 		m = mousectl->m;
143 fd465540 2004-12-27 devnull 		switch(m.buttons){
144 fd465540 2004-12-27 devnull 		case 1:
145 fd465540 2004-12-27 devnull 			while(m.buttons){
146 fd465540 2004-12-27 devnull 				if(screen->depth > 8)
147 fd465540 2004-12-27 devnull 					n = 256;
148 fd465540 2004-12-27 devnull 				else
149 fd465540 2004-12-27 devnull 					n = 1<<screen->depth;
150 fd465540 2004-12-27 devnull 				for(i=0; i!=n; i++)
151 fd465540 2004-12-27 devnull 					if(i!=prev && ptinrect(m.xy, crect[i])){
152 fd465540 2004-12-27 devnull 						if(ramp)
153 fd465540 2004-12-27 devnull 							rgb = grey(i);
154 fd465540 2004-12-27 devnull 						else
155 fd465540 2004-12-27 devnull 							rgb = cmap2rgb(i);
156 fd465540 2004-12-27 devnull 						sprint(buf, fmt,
157 fd465540 2004-12-27 devnull 							i,
158 fd465540 2004-12-27 devnull 							(rgb>>16)&0xFF,
159 fd465540 2004-12-27 devnull 							(rgb>>8)&0xFF,
160 fd465540 2004-12-27 devnull 							rgb&0xFF,
161 fd465540 2004-12-27 devnull 							(rgb<<8) | 0xFF);
162 fd465540 2004-12-27 devnull 						p = addpt(screen->r.min, Pt(2,2));
163 fd465540 2004-12-27 devnull 						draw(screen, Rpt(p, addpt(p, stringsize(font, buf))), display->white, nil, p);
164 fd465540 2004-12-27 devnull 						string(screen, p, display->black, ZP, font, buf);
165 fd465540 2004-12-27 devnull 						prev=i;
166 fd465540 2004-12-27 devnull 						break;
167 fd465540 2004-12-27 devnull 					}
168 fd465540 2004-12-27 devnull 				readmouse(mousectl);
169 fd465540 2004-12-27 devnull 				m = mousectl->m;
170 fd465540 2004-12-27 devnull 			}
171 fd465540 2004-12-27 devnull 			break;
172 fd465540 2004-12-27 devnull 
173 fd465540 2004-12-27 devnull 		case 4:
174 fd465540 2004-12-27 devnull 			switch(menuhit(3, mousectl, &menu, nil)){
175 fd465540 2004-12-27 devnull 			case 0:
176 5ad21e86 2005-01-15 devnull 				threadexitsall(0);
177 fd465540 2004-12-27 devnull 			}
178 fd465540 2004-12-27 devnull 		}
179 fd465540 2004-12-27 devnull 	}
180 fd465540 2004-12-27 devnull }
181 fd465540 2004-12-27 devnull 
182 fd465540 2004-12-27 devnull void
183 fd465540 2004-12-27 devnull eresized(int new)
184 fd465540 2004-12-27 devnull {
185 fd465540 2004-12-27 devnull 	int x, y, i, n, nx, ny;
186 fd465540 2004-12-27 devnull 	Rectangle r, b;
187 fd465540 2004-12-27 devnull 
188 fd465540 2004-12-27 devnull 	if(new && getwindow(display, Refnone) < 0){
189 fd465540 2004-12-27 devnull 		fprint(2, "colors: can't reattach to window: %r\n");
190 5ad21e86 2005-01-15 devnull 		threadexitsall("resized");
191 fd465540 2004-12-27 devnull 	}
192 fd465540 2004-12-27 devnull 	if(screen->depth > 8){
193 fd465540 2004-12-27 devnull 		n = 256;
194 fd465540 2004-12-27 devnull 		nx = 16;
195 fd465540 2004-12-27 devnull 	}else{
196 fd465540 2004-12-27 devnull 		n = 1<<screen->depth;
197 fd465540 2004-12-27 devnull 		nx = 1<<(screen->depth/2);
198 fd465540 2004-12-27 devnull 	}
199 fd465540 2004-12-27 devnull 
200 fd465540 2004-12-27 devnull 	ny = n/nx;
201 fd465540 2004-12-27 devnull 	draw(screen, screen->r, display->white, nil, ZP);
202 fd465540 2004-12-27 devnull 	r = insetrect(screen->r, 5);
203 fd465540 2004-12-27 devnull 	r.min.y+=20;
204 fd465540 2004-12-27 devnull 	b.max.y=r.min.y;
205 fd465540 2004-12-27 devnull 	for(i=n-1, y=0; y!=ny; y++){
206 fd465540 2004-12-27 devnull 		b.min.y=b.max.y;
207 fd465540 2004-12-27 devnull 		b.max.y=r.min.y+(r.max.y-r.min.y)*(y+1)/ny;
208 fd465540 2004-12-27 devnull 		b.max.x=r.min.x;
209 fd465540 2004-12-27 devnull 		for(x=0; x!=nx; x++, --i){
210 fd465540 2004-12-27 devnull 			b.min.x=b.max.x;
211 fd465540 2004-12-27 devnull 			b.max.x=r.min.x+(r.max.x-r.min.x)*(x+1)/nx;
212 fd465540 2004-12-27 devnull 			crect[i]=insetrect(b, 1);
213 fd465540 2004-12-27 devnull 			draw(screen, crect[i], color[i], nil, ZP);
214 fd465540 2004-12-27 devnull 		}
215 fd465540 2004-12-27 devnull 	}
216 fd465540 2004-12-27 devnull 	flushimage(display, 1);
217 fd465540 2004-12-27 devnull }
218 fd465540 2004-12-27 devnull 
219 fd465540 2004-12-27 devnull void
220 fd465540 2004-12-27 devnull resizethread(void *v)
221 fd465540 2004-12-27 devnull {
222 fd465540 2004-12-27 devnull 	ulong x;
223 fd465540 2004-12-27 devnull 
224 fd465540 2004-12-27 devnull 	USED(v);
225 fd465540 2004-12-27 devnull 
226 fd465540 2004-12-27 devnull 	eresized(0);
227 fd465540 2004-12-27 devnull 	while(recv(mousectl->resizec, &x) >= 0)
228 fd465540 2004-12-27 devnull 		eresized(1);
229 fd465540 2004-12-27 devnull }
230 fd465540 2004-12-27 devnull