1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <rfb/rfb.h>
4 #include <rfb/keysym.h>
5 #include <rfb/default8x16.h>
6
7 static int maxx=400, maxy=400, bpp=4;
8 /* odd maxx doesn't work (vncviewer bug) */
9
10 /* Here we create a structure so that every client has it's own pointer */
11
12 /* turns the framebuffer black */
13 void blank_framebuffer(char* frame_buffer, int x1, int y1, int x2, int y2);
14 /* displays a red bar, a green bar, and a blue bar */
15 void draw_primary_colors (char* frame_buffer, int x1, int y1, int x2, int y2);
16 void draw_primary_colours_generic(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2);
17 void draw_primary_colours_generic_fast(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2);
18 void linecount (char* frame_buffer);
19 /* handles mouse events */
20 void on_mouse_event (int buttonMask,int x,int y,rfbClientPtr cl);
21 /* handles keyboard events */
22 void on_key_press (rfbBool down,rfbKeySym key,rfbClientPtr cl);
23
main(int argc,char ** argv)24 int main (int argc, char **argv)
25 {
26 rfbScreenInfoPtr server;
27
28 if(!rfbProcessSizeArguments(&maxx,&maxy,&bpp,&argc,argv))
29 return 1;
30
31 server = rfbGetScreen (&argc, argv, maxx, maxy, 8, 3, bpp);
32 if(!server)
33 return 0;
34 server->desktopName = "Zippy das wundersquirrel\'s VNC server";
35 server->frameBuffer = (char*)malloc(maxx*maxy*bpp);
36 server->alwaysShared = TRUE;
37 server->kbdAddEvent = on_key_press;
38 server->ptrAddEvent = on_mouse_event;
39
40 rfbInitServer (server);
41
42 blank_framebuffer(server->frameBuffer, 0, 0, maxx, maxy);
43 rfbRunEventLoop (server, -1, FALSE);
44 free(server->frameBuffer);
45 rfbScreenCleanup (server);
46 return 0;
47 }
48
blank_framebuffer(char * frame_buffer,int x1,int y1,int x2,int y2)49 void blank_framebuffer(char* frame_buffer, int x1, int y1, int x2, int y2)
50 {
51 int i;
52 for (i=0; i < maxx * maxy * bpp; i++) frame_buffer[i]=(char) 0;
53 }
54
draw_primary_colors(char * frame_buffer,int x1,int y1,int x2,int y2)55 void draw_primary_colors (char* frame_buffer, int x1, int y1, int x2, int y2)
56 {
57 int i, j, current_pixel;
58 for (i=y1; i < y2; i++){
59 for (j=x1; j < x2; j++) {
60 current_pixel = (i*x2 + j) * bpp;
61 if (i < y2 ) {
62 frame_buffer[current_pixel+0] = (char) 128;
63 frame_buffer[current_pixel+1] = (char) 0;
64 frame_buffer[current_pixel+2] = (char) 0;
65 }
66 if (i < y2/3*2) {
67 frame_buffer[current_pixel+0] = (char) 0;
68 frame_buffer[current_pixel+1] = (char) 128;
69 frame_buffer[current_pixel+2] = (char) 0;
70 }
71 if (i < y2/3) {
72 frame_buffer[current_pixel+0] = (char) 0;
73 frame_buffer[current_pixel+1] = (char) 0;
74 frame_buffer[current_pixel+2] = (char) 128;
75 }
76 }
77 }
78 }
79
80 /* Dscho's versions (slower, but works for bpp != 3 or 4) */
draw_primary_colours_generic(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2)81 void draw_primary_colours_generic(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2)
82 {
83 rfbPixelFormat f=s->serverFormat;
84 int i,j;
85 for(j=y1;j<y2;j++)
86 for(i=x1;i<x2;i++)
87 if(j<y1*2/3+y2/3)
88 rfbDrawPixel(s,i,j,f.redMax<<f.redShift);
89 else if(j<y1/3+y2*2/3)
90 rfbDrawPixel(s,i,j,f.greenMax<<f.greenShift);
91 else
92 rfbDrawPixel(s,i,j,f.blueMax<<f.blueShift);
93 }
94
draw_primary_colours_generic_fast(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2)95 void draw_primary_colours_generic_fast(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2)
96 {
97 rfbPixelFormat f=s->serverFormat;
98 int i,j,y3=(y1*2+y2)/3,y4=(y1+y2*2)/3;
99 /* draw first pixel */
100 rfbDrawPixel(s,x1,y1,f.redMax<<f.redShift);
101 rfbDrawPixel(s,x1,y3,f.greenMax<<f.greenShift);
102 rfbDrawPixel(s,x1,y4,f.blueMax<<f.blueShift);
103 /* then copy stripes */
104 for(j=0;j<y2-y4;j++)
105 for(i=x1;i<x2;i++) {
106 #define ADDR(x,y) s->frameBuffer+(x)*bpp+(y)*s->paddedWidthInBytes
107 memcpy(ADDR(i,j+y1),ADDR(x1,y1),bpp);
108 memcpy(ADDR(i,j+y3),ADDR(x1,y3),bpp);
109 memcpy(ADDR(i,j+y4),ADDR(x1,y4),bpp);
110 }
111 }
112
draw_primary_colours_generic_ultrafast(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2)113 static void draw_primary_colours_generic_ultrafast(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2)
114 {
115 rfbPixelFormat f=s->serverFormat;
116 int y3=(y1*2+y2)/3,y4=(y1+y2*2)/3;
117 /* fill rectangles */
118 rfbFillRect(s,x1,y1,x2,y3,f.redMax<<f.redShift);
119 rfbFillRect(s,x1,y3,x2,y4,f.greenMax<<f.greenShift);
120 rfbFillRect(s,x1,y4,x2,y2,f.blueMax<<f.blueShift);
121 }
122
linecount(char * frame_buffer)123 void linecount (char* frame_buffer)
124 {
125 int i,j,k, current_pixel;
126 for (i=maxy-4; i>maxy-20; i-=4)
127 for (j=0; j<4; j++) for (k=0; k < maxx; k++) {
128 current_pixel = (i*j*maxx + k) * bpp;
129 if (i%2 == 0) {
130 frame_buffer[current_pixel+0] = (char) 0;
131 frame_buffer[current_pixel+1] = (char) 0;
132 frame_buffer[current_pixel+2] = (char) 128;
133 }
134
135 if (i%2 == 1) {
136 frame_buffer[current_pixel+0] = (char) 128;
137 frame_buffer[current_pixel+1] = (char) 0;
138 frame_buffer[current_pixel+2] = (char) 0;
139 }
140 }
141
142 }
143
144
on_key_press(rfbBool down,rfbKeySym key,rfbClientPtr cl)145 void on_key_press (rfbBool down,rfbKeySym key,rfbClientPtr cl)
146 {
147 if (down) /* or else the action occurs on both the press and depress */
148 switch (key) {
149
150 case XK_b:
151 case XK_B:
152 blank_framebuffer(cl->screen->frameBuffer, 0, 0, maxx, maxy);
153 rfbDrawString(cl->screen,&default8x16Font,20,maxy-20,"Hello, World!",0xffffff);
154 rfbMarkRectAsModified(cl->screen,0, 0,maxx,maxy);
155 rfbLog("Framebuffer blanked\n");
156 break;
157 case XK_p:
158 case XK_P:
159 /* draw_primary_colors (cl->screen->frameBuffer, 0, 0, maxx, maxy); */
160 draw_primary_colours_generic_ultrafast (cl->screen, 0, 0, maxx, maxy);
161 rfbMarkRectAsModified(cl->screen,0, 0,maxx,maxy);
162 rfbLog("Primary colors displayed\n");
163 break;
164 case XK_Q:
165 case XK_q:
166 rfbLog("Exiting now\n");
167 exit(0);
168 case XK_C:
169 case XK_c:
170 rfbDrawString(cl->screen,&default8x16Font,20,100,"Hello, World!",0xffffff);
171 rfbMarkRectAsModified(cl->screen,0, 0,maxx,maxy);
172 break;
173 default:
174 rfbLog("The %c key was pressed\n", (char) key);
175 }
176 }
177
178
on_mouse_event(int buttonMask,int x,int y,rfbClientPtr cl)179 void on_mouse_event (int buttonMask,int x,int y,rfbClientPtr cl)
180 {
181 printf("buttonMask: %i\n"
182 "x: %i\n" "y: %i\n", buttonMask, x, y);
183 }
184