From: hackbard <hackbard>
Date: Thu, 27 Jan 2005 15:31:24 +0000 (+0000)
Subject: added LIBC_RAND functionality & x-z view in real TEM mode now
X-Git-Url: https://hackdaworld.org/gitweb/?a=commitdiff_plain;h=1f55e7855dc1314a37872d6095e3565509ac292e;p=physik%2Fnlsop.git

added LIBC_RAND functionality & x-z view in real TEM mode now
---

diff --git a/dfbapi.c b/dfbapi.c
index da7b5f3..b922cc4 100644
--- a/dfbapi.c
+++ b/dfbapi.c
@@ -188,7 +188,7 @@ int d2_lattice_draw(d2_lattice *d2_l,int x,int y,int arg_c,char **arg_v,unsigned
 int d3_lattice_draw(d3_lattice *d3_l,int x,int y,int z,int arg_c,char **arg_v,unsigned char mode,int max_extra,u32 *p1,u32 max1,u32 *p2,u32 max2)
 {
  int x_c,y_c,z_c;
- int i;
+ int i,sum;
  unsigned char foobar;
  unsigned char r,g,b,a;
 
@@ -199,7 +199,14 @@ int d3_lattice_draw(d3_lattice *d3_l,int x,int y,int z,int arg_c,char **arg_v,un
  {
   for(z_c=0;z_c<d3_l->max_z;z_c++)
   {
-   if((!mode)||mode==3) dx_lattice_get_color((*d3_l).status+x_c+y_c*d3_l->max_x+z_c*d3_l->max_x*d3_l->max_y,&r,&g,&b,mode);
+   if((!mode)||mode==3)
+   {
+    sum=0;
+    for(i=-2;i<=2;i++)
+     if(*(d3_l->status+x_c+((y_c+i+d3_l->max_y)%d3_l->max_y)*d3_l->max_x+z_c*d3_l->max_x*d3_l->max_y)&RED) sum+=0xff;
+    g=0; b=0;
+    r=(unsigned char)(sum/5);
+   }
    if(mode==3)
    {
     if(d3_l->max_x*p1[z_c]/max1==x_c)
diff --git a/random.c b/random.c
index 468a3a5..a664fa7 100644
--- a/random.c
+++ b/random.c
@@ -12,6 +12,10 @@
 #include <stdlib.h>
 #include <math.h>
 
+#ifdef USE_LIBC_RAND
+#include <time.h>
+#endif
+
 #include "random.h"
 
 static int rand_fd;
@@ -21,11 +25,13 @@ int rand_init(char *rf)
 {
  if(rf==NULL)
  {
+#ifndef USE_LIBC_RAND
   if((rand_fd=open("/dev/urandom",O_RDONLY))<0)
   {
    puts("cannot open /dev/urandom");
    return -1;
   }
+#endif
  } else
  {
   if((rand_fd=open(rf,O_RDONLY))<0)
@@ -46,7 +52,9 @@ int rand_init(char *rf)
 
 int rand_close(void)
 {
+#ifndef USE_LIBC_RAND
  close(rand_fd);
+#endif
  
  return 1;
 }
@@ -58,6 +66,12 @@ u32 get_rand(u32 max)
 #ifdef MORE_PRINTF
   printf("getting another %d bytes of random data ...\n",BUFSIZE);
 #endif
+#ifdef USE_LIBC_RAND
+  c_ptr=b_ptr;
+  srand((int)time(NULL));
+  while(c_ptr<b_ptr+BUFSIZE) *(c_ptr++)=(u32)rand();
+  c_ptr=b_ptr;
+#else
   if(read(rand_fd,b_ptr,BUFSIZE*sizeof(u32))<BUFSIZE*sizeof(u32))
   {
    /* -> assume random file, end reached */
@@ -66,12 +80,17 @@ u32 get_rand(u32 max)
    read(rand_fd,b_ptr,BUFSIZE*sizeof(u32));
   }
   c_ptr=b_ptr;
+#endif
 #ifdef MORE_PRINTF
   printf("got it!\n");
 #endif
  }
 
+#ifdef USE_LIBC_RAND
+ return((u32)(*(c_ptr++)*(max*1.0/((long long unsigned int)RAND_MAX+1))));
+#else
  return((u32)(*(c_ptr++)*(max*1.0/((long long unsigned int)URAND_MAX+1))));
+#endif
 }
 
 u32 get_rand_lgp(u32 max,double a,double b)