1 /** 2 * @example pnmshow24.c 3 */ 4 5 #include <stdio.h> 6 #include <rfb/rfb.h> 7 #include <rfb/keysym.h> 8 9 #ifndef LIBVNCSERVER_ALLOW24BPP 10 int main() { 11 printf("I need the ALLOW24BPP LibVNCServer flag to work\n"); 12 exit(1); 13 } 14 #else 15 16 static void HandleKey(rfbBool down,rfbKeySym key,rfbClientPtr cl) 17 { 18 if(down && (key==XK_Escape || key=='q' || key=='Q')) 19 rfbCloseClient(cl); 20 } 21 22 int main(int argc,char** argv) 23 { 24 FILE* in=stdin; 25 int j,width,height,paddedWidth; 26 char buffer[1024]; 27 rfbScreenInfoPtr rfbScreen; 28 29 if(argc>1) { 30 in=fopen(argv[1],"rb"); 31 if(!in) { 32 printf("Couldn't find file %s.\n",argv[1]); 33 exit(1); 34 } 35 } 36 37 fgets(buffer,1024,in); 38 if(strncmp(buffer,"P6",2)) { 39 printf("Not a ppm.\n"); 40 exit(2); 41 } 42 43 /* skip comments */ 44 do { 45 fgets(buffer,1024,in); 46 } while(buffer[0]=='#'); 47 48 /* get width & height */ 49 sscanf(buffer,"%d %d",&width,&height); 50 rfbLog("Got width %d and height %d.\n",width,height); 51 fgets(buffer,1024,in); 52 53 /* vncviewers have problems with widths which are no multiple of 4. */ 54 paddedWidth = width; 55 56 /* if your vncviewer doesn't have problems with a width 57 which is not a multiple of 4, you can comment this. */ 58 if(width&3) 59 paddedWidth+=4-(width&3); 60 61 /* initialize data for vnc server */ 62 rfbScreen = rfbGetScreen(&argc,argv,paddedWidth,height,8,3,3); 63 if(!rfbScreen) 64 return 0; 65 if(argc>1) 66 rfbScreen->desktopName = argv[1]; 67 else 68 rfbScreen->desktopName = "Picture"; 69 rfbScreen->alwaysShared = TRUE; 70 rfbScreen->kbdAddEvent = HandleKey; 71 72 /* enable http */ 73 rfbScreen->httpDir = "../webclients"; 74 75 /* allocate picture and read it */ 76 rfbScreen->frameBuffer = (char*)malloc(paddedWidth*3*height); 77 fread(rfbScreen->frameBuffer,width*3,height,in); 78 fclose(in); 79 80 /* pad to paddedWidth */ 81 if(width != paddedWidth) { 82 int padCount = 3*(paddedWidth - width); 83 for(j=height-1;j>=0;j--) { 84 memmove(rfbScreen->frameBuffer+3*paddedWidth*j, 85 rfbScreen->frameBuffer+3*width*j, 86 3*width); 87 memset(rfbScreen->frameBuffer+3*paddedWidth*(j+1)-padCount, 88 0,padCount); 89 } 90 } 91 92 /* initialize server */ 93 rfbInitServer(rfbScreen); 94 95 /* run event loop */ 96 rfbRunEventLoop(rfbScreen,40000,FALSE); 97 98 return(0); 99 } 100 #endif 101
