From 2b8c2a5c3a71364e402b4df334a6f5aff5ed77a9 Mon Sep 17 00:00:00 2001
From: dscho <dscho>
Date: Mon, 7 Jun 2004 08:31:57 +0000
Subject: add client_examples/, add SDLvncviewer, libvncclient API changes,
 suppress automake CFLAGS nagging

---
 client_examples/ppmtest.c | 93 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 client_examples/ppmtest.c

(limited to 'client_examples/ppmtest.c')

diff --git a/client_examples/ppmtest.c b/client_examples/ppmtest.c
new file mode 100644
index 0000000..01ee6a7
--- /dev/null
+++ b/client_examples/ppmtest.c
@@ -0,0 +1,93 @@
+/* A simple example of an RFB client */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <errno.h>
+#include <rfb/rfbclient.h>
+
+void PrintRect(rfbClient* client, int x, int y, int w, int h) {
+	rfbClientLog("Received an update for %d,%d,%d,%d.\n",x,y,w,h);
+}
+
+void SaveFramebufferAsPPM(rfbClient* client, int x, int y, int w, int h) {
+	static time_t t=0,t1;
+	FILE* f;
+	int i,j;
+	rfbPixelFormat* pf=&client->format;
+	int bpp=pf->bitsPerPixel/8;
+	int row_stride=client->width*bpp;
+
+	/* save one picture only if the last is older than 2 seconds */
+	t1=time(0);
+	if(t1-t>2)
+		t=t1;
+	else
+		return;
+
+	/* assert bpp=4 */
+	if(bpp!=4 && bpp!=2) {
+		rfbClientLog("bpp = %d (!=4)\n",bpp);
+		return;
+	}
+
+	f=fopen("/tmp/framebuffer.ppm","wb");
+
+	fprintf(f,"P6\n# %s\n%d %d\n255\n",client->desktopName,client->width,client->height);
+	for(j=0;j<client->height*row_stride;j+=row_stride)
+		for(i=0;i<client->width*bpp;i+=bpp) {
+			const char* p=client->frameBuffer+j+i;
+			unsigned int v;
+			if(bpp==4)
+				v=*(unsigned int*)p;
+			else if(bpp==2)
+				v=*(unsigned short*)p;
+			fputc((v>>pf->redShift)*256/(pf->redMax+1),f);
+			fputc((v>>pf->greenShift)*256/(pf->greenMax+1),f);
+			fputc((v>>pf->blueShift)*256/(pf->blueMax+1),f);
+		}
+	fclose(f);
+}
+
+	int
+main(int argc, char **argv)
+{
+	int i;
+	rfbClient* client = rfbGetClient(8,3,4);
+	const char* vncServerHost="";
+	int vncServerPort=5900;
+	time_t t=time(0);
+
+	if(argc>1 && !strcmp("-print",argv[1])) {
+		client->GotFrameBufferUpdate = PrintRect;
+		argv[1]=argv[0]; argv++; argc--;
+	} else
+		client->GotFrameBufferUpdate = SaveFramebufferAsPPM;
+
+	/* The -listen option is used to make us a daemon process which listens for
+	   incoming connections from servers, rather than actively connecting to a
+	   given server. The -tunnel and -via options are useful to create
+	   connections tunneled via SSH port forwarding. We must test for the
+	   -listen option before invoking any Xt functions - this is because we use
+	   forking, and Xt doesn't seem to cope with forking very well. For -listen
+	   option, when a successful incoming connection has been accepted,
+	   listenForIncomingConnections() returns, setting the listenSpecified
+	   flag. */
+
+	if (!rfbInitClient(client,&argc,argv))
+		return 1;
+
+	while (time(0)-t<5) {
+		static int i=0;
+		fprintf(stderr,"\r%d",i++);
+		if(WaitForMessage(client,50)<0)
+			break;
+		if(!HandleRFBServerMessage(client))
+			break;
+	}
+
+	rfbClientCleanup(client);
+
+	return 0;
+}
+
-- 
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