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authordscho <dscho>2003-02-07 11:53:43 +0000
committerdscho <dscho>2003-02-07 11:53:43 +0000
commit6b7cdeb9ef9ffb149d8dc38b17a55ebe503e31e7 (patch)
tree2d267e28a9a373a98afb9b4e09e4ae53f9a6e37e /examples/pnmshow.c
parent357844447caa9af50f78fb3cc17309621ee90e76 (diff)
downloadlibtdevnc-6b7cdeb9.tar.gz
libtdevnc-6b7cdeb9.zip
moved files to contrib/ and examples/
Diffstat (limited to 'examples/pnmshow.c')
-rw-r--r--examples/pnmshow.c81
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);
+}