1 files changed, 81 insertions, 0 deletions
diff --git a/examples/pnmshow.c b/examples/pnmshow.c
new file mode 100644
index 0000000..0a5f47b
--- /dev/null
+++ b/examples/pnmshow.c
@@ -0,0 +1,81 @@
+#include <stdio.h>
+#include "rfb.h"
+#include "keysym.h"
+
+void HandleKey(Bool down,KeySym key,rfbClientPtr cl)
+{
+  if(down && (key==XK_Escape || key=='q' || key=='Q'))
+    rfbCloseClient(cl);
+}
+
+int main(int argc,char** argv)
+{
+  FILE* in=stdin;
+  int i,j,k,width,height,paddedWidth;
+  char buffer[1024];
+  rfbScreenInfoPtr rfbScreen;
+
+  if(argc>1) {
+    in=fopen(argv[1],"rb");
+    if(!in) {
+      printf("Couldn't find file %s.\n",argv[1]);
+      exit(1);
+    }
+  }
+
+  fgets(buffer,1024,in);
+  if(strncmp(buffer,"P6",2)) {
+    printf("Not a ppm.\n");
+    exit(2);
+  }
+
+  /* skip comments */
+  do {
+    fgets(buffer,1024,in);
+  } while(buffer[0]=='#');
+
+  /* get width & height */
+  sscanf(buffer,"%d %d",&width,&height);
+  fprintf(stderr,"Got width %d and height %d.\n",width,height);
+  fgets(buffer,1024,in);
+
+  /* vncviewers have problems with widths which are no multiple of 4. */
+  paddedWidth = width;
+  if(width&3)
+    paddedWidth+=4-(width&3);
+
+  /* initialize data for vnc server */
+  rfbScreen = rfbGetScreen(&argc,argv,paddedWidth,height,8,3,4);
+  if(argc>1)
+    rfbScreen->desktopName = argv[1];
+  else
+    rfbScreen->desktopName = "Picture";
+  rfbScreen->rfbAlwaysShared = TRUE;
+  rfbScreen->kbdAddEvent = HandleKey;
+
+  /* enable http */
+  rfbScreen->httpDir = "./classes";
+
+  /* allocate picture and read it */
+  rfbScreen->frameBuffer = (char*)malloc(paddedWidth*4*height);
+  fread(rfbScreen->frameBuffer,width*3,height,in);
+  fclose(in);
+
+  /* correct the format to 4 bytes instead of 3 (and pad to paddedWidth) */
+  for(j=height-1;j>=0;j--) {
+    for(i=width-1;i>=0;i--)
+      for(k=2;k>=0;k--)
+	rfbScreen->frameBuffer[(j*paddedWidth+i)*4+k]=
+	  rfbScreen->frameBuffer[(j*width+i)*3+k];
+    for(i=width*4;i<paddedWidth*4;i++)
+      rfbScreen->frameBuffer[j*paddedWidth*4+i]=0;
+  }
+
+  /* initialize server */
+  rfbInitServer(rfbScreen);
+
+  /* run event loop */
+  rfbRunEventLoop(rfbScreen,40000,FALSE);
+
+  return(0);
+}