1 files changed, 163 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa_6.4.1/src/glut/dos/PC_HW/pc_hw.c b/nx-X11/extras/Mesa_6.4.1/src/glut/dos/PC_HW/pc_hw.c
new file mode 100644
index 000000000..100b37216
--- /dev/null
+++ b/nx-X11/extras/Mesa_6.4.1/src/glut/dos/PC_HW/pc_hw.c
@@ -0,0 +1,163 @@
+/*
+ * PC/HW routine collection v1.3 for DOS/DJGPP
+ *
+ *  Copyright (C) 2002 - Daniel Borca
+ *  Email : dborca@yahoo.com
+ *  Web   : http://www.geocities.com/dborca
+ */
+
+
+#include <dpmi.h>
+#include <fcntl.h>
+#include <sys/stat.h> /* for mode definitions */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "pc_hw.h"
+
+
+/*
+ * atexit
+ */
+#define MAX_ATEXIT 32
+
+static volatile int atexitcnt;
+static VFUNC atexittbl[MAX_ATEXIT];
+
+
+static void __attribute__((destructor))
+doexit (void)
+{
+   while (atexitcnt) atexittbl[--atexitcnt]();
+}
+
+
+int
+pc_clexit (VFUNC f)
+{
+   int i;
+
+   for (i = 0; i < atexitcnt; i++) {
+      if (atexittbl[i] == f) {
+         for (atexitcnt--; i < atexitcnt; i++) atexittbl[i] = atexittbl[i+1];
+         atexittbl[i] = 0;
+         return 0;
+      }
+   }
+   return -1;
+}
+
+
+int
+pc_atexit (VFUNC f)
+{
+   pc_clexit(f);
+   if (atexitcnt < MAX_ATEXIT) {
+      atexittbl[atexitcnt++] = f;
+      return 0;
+   }
+   return -1;
+}
+
+
+/*
+ * locked memory allocation
+ */
+void *
+pc_malloc (size_t size)
+{
+   void *p = malloc(size);
+
+   if (p) {
+      if (_go32_dpmi_lock_data(p, size)) {
+         free(p);
+         return NULL;
+      }
+   }
+
+   return p;
+}
+
+
+/*
+ * standard redirection
+ */
+static char outname[L_tmpnam];
+static int h_out, h_outbak;
+static char errname[L_tmpnam];
+static int h_err, h_errbak;
+
+
+int
+pc_open_stdout (void)
+{
+   tmpnam(outname);
+
+   if ((h_out=open(outname, O_WRONLY | O_CREAT | O_TEXT | O_TRUNC, S_IREAD | S_IWRITE)) > 0) {
+      h_outbak = dup(STDOUT_FILENO);
+      fflush(stdout);
+      dup2(h_out, STDOUT_FILENO);
+   }
+
+   return h_out;
+}
+
+
+void
+pc_close_stdout (void)
+{
+   FILE *f;
+   char *line = alloca(512);
+
+   if (h_out > 0) {
+      dup2(h_outbak, STDOUT_FILENO);
+      close(h_out);
+      close(h_outbak);
+
+      f = fopen(outname, "rt");
+      while (fgets(line, 512, f)) {
+         fputs(line, stdout);
+      }
+      fclose(f);
+
+      remove(outname);
+   }
+}
+
+
+int
+pc_open_stderr (void)
+{
+   tmpnam(errname);
+
+   if ((h_err=open(errname, O_WRONLY | O_CREAT | O_TEXT | O_TRUNC, S_IREAD | S_IWRITE)) > 0) {
+      h_errbak = dup(STDERR_FILENO);
+      fflush(stderr);
+      dup2(h_err, STDERR_FILENO);
+   }
+
+   return h_err;
+}
+
+
+void
+pc_close_stderr (void)
+{
+   FILE *f;
+   char *line = alloca(512);
+
+   if (h_err > 0) {
+      dup2(h_errbak, STDERR_FILENO);
+      close(h_err);
+      close(h_errbak);
+
+      f = fopen(errname, "rt");
+      while (fgets(line, 512, f)) {
+         fputs(line, stderr);
+      }
+      fclose(f);
+
+      remove(errname);
+   }
+}