From 21666e3db410d3ab9c7e4b18a3c29ae78a04fa95 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Sat, 5 Oct 2002 18:30:13 +0000
Subject: pbuffer info and demo programs

---
 progs/xdemos/pbinfo.c | 133 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 133 insertions(+)
 create mode 100644 progs/xdemos/pbinfo.c

(limited to 'progs/xdemos/pbinfo.c')

diff --git a/progs/xdemos/pbinfo.c b/progs/xdemos/pbinfo.c
new file mode 100644
index 0000000000..e4e52810f7
--- /dev/null
+++ b/progs/xdemos/pbinfo.c
@@ -0,0 +1,133 @@
+/* $Id: pbinfo.c,v 1.1 2002/10/05 18:30:13 brianp Exp $ */
+
+/*
+ * Print list of fbconfigs and test each to see if a pbuffer can be created
+ * for that config.
+ *
+ * Brian Paul
+ * April 1997
+ * Updated on 5 October 2002.
+ */
+
+
+#include <X11/Xlib.h>
+#include <stdio.h>
+#include <string.h>
+#include "pbutil.h"
+
+
+
+
+static void
+PrintConfigs(Display *dpy, int screen, Bool horizFormat)
+{
+   GLXFBConfigSGIX *fbConfigs;
+   int nConfigs;
+   int i;
+   /* Note: you may want to tweek the attribute list to select a different
+    * set of fbconfigs.
+    */
+   int fbAttribs[] = {
+                      GLX_RENDER_TYPE_SGIX, 0,
+		      GLX_DRAWABLE_TYPE_SGIX, 0,
+#if 0
+                      GLX_RENDER_TYPE_SGIX, GLX_RGBA_BIT_SGIX,
+		      GLX_DRAWABLE_TYPE_SGIX, GLX_PIXMAP_BIT_SGIX,
+		      GLX_RED_SIZE, 1,
+		      GLX_GREEN_SIZE, 1,
+		      GLX_BLUE_SIZE, 1,
+		      GLX_DEPTH_SIZE, 1,
+		      GLX_DOUBLEBUFFER, 0,
+		      GLX_STENCIL_SIZE, 0,
+#endif
+		      None};
+
+
+   /* Get list of possible frame buffer configurations */
+#if 0
+   /* SGIX method */
+   fbConfigs = glXChooseFBConfigSGIX(dpy, screen, fbAttribs, &nConfigs);
+#else
+   /* GLX 1.3 method */
+   fbConfigs = glXGetFBConfigs(dpy, screen, &nConfigs);
+#endif
+
+   if (nConfigs==0 || !fbConfigs) {
+      printf("Error: glxChooseFBConfigSGIX failed\n");
+      return;
+   }
+
+   printf("Number of fbconfigs: %d\n", nConfigs);
+
+   if (horizFormat) {
+      printf("  ID  VisualType  Depth Lvl RGB CI DB Stereo  R  G  B  A");
+      printf("   Z  S  AR AG AB AA  MSbufs MSnum  Pbuffer\n");
+   }
+
+   /* Print config info */
+   for (i=0;i<nConfigs;i++) {
+      PrintFBConfigInfo(dpy, fbConfigs[i], horizFormat);
+   }
+
+   /* free the list */
+   XFree(fbConfigs);
+}
+
+
+
+static void
+PrintUsage(void)
+{
+   printf("Options:\n");
+   printf("  -display <display-name>  specify X display name\n");
+   printf("  -t                       print in tabular format\n");
+   printf("  -v                       print in verbose format\n");
+   printf("  -help                    print this information\n");
+}
+
+
+int
+main(int argc, char *argv[])
+{
+   Display *dpy;
+   int scrn;
+   char *dpyName = NULL;
+   Bool horizFormat = True;
+   int i;
+
+   for (i=1; i<argc; i++) {
+      if (strcmp(argv[i],"-display")==0) {
+	 if (i+1<argc) {
+	    dpyName = argv[i+1];
+	    i++;
+	 }
+      }
+      else if (strcmp(argv[i],"-t")==0) {
+	 /* tabular format */
+	 horizFormat = True;
+      }
+      else if (strcmp(argv[i],"-v")==0) {
+	 /* verbose format */
+	 horizFormat = False;
+      }
+      else if (strcmp(argv[i],"-help")==0) {
+	 PrintUsage();
+	 return 0;
+      }
+      else {
+	 printf("Unknown option: %s\n", argv[i]);
+      }
+   }
+
+   dpy = XOpenDisplay(dpyName);
+
+   if (!dpy) {
+      printf("Error: couldn't open display %s\n", dpyName ? dpyName : ":0");
+      return 1;
+   }
+
+   scrn = DefaultScreen(dpy);
+   PrintConfigs(dpy, scrn, horizFormat);
+   XCloseDisplay(dpy);
+   return 0;
+}
-- 
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