1 files changed, 91 insertions, 0 deletions
diff --git a/minilibx-linux/mlx_init.c b/minilibx-linux/mlx_init.c
new file mode 100644
index 0000000..7a8db8f
--- /dev/null
+++ b/minilibx-linux/mlx_init.c
@@ -0,0 +1,91 @@
+/*
+** mlx_init.c for MiniLibX in 
+** 
+** Made by Charlie Root
+** Login   <ol@epitech.net>
+** 
+** Started on  Mon Jul 31 16:52:42 2000 Charlie Root
+** Last update Fri Jan 28 17:05:09 2005 Olivier Crouzet
+*/
+
+
+#include	"mlx_int.h"
+
+
+
+void		*mlx_init()
+{
+  t_xvar	*xvar;
+  
+  if (!(xvar = malloc(sizeof(*xvar))) || (xvar->display = XOpenDisplay(""))==0)
+    return ((void *)0);
+  xvar->screen = DefaultScreen(xvar->display);
+  xvar->root = DefaultRootWindow(xvar->display);
+  xvar->cmap = DefaultColormap(xvar->display,xvar->screen);
+  xvar->depth = DefaultDepth(xvar->display,xvar->screen);
+  if (mlx_int_get_visual(xvar)==-1)
+    {
+      printf(ERR_NO_TRUECOLOR);
+      exit(1);
+    }
+  xvar->win_list = 0;
+  xvar->loop_hook = 0;
+  xvar->loop_param = (void *)0;
+  xvar->do_flush = 1;
+  mlx_int_deal_shm(xvar);
+  if (xvar->private_cmap)
+    xvar->cmap = XCreateColormap(xvar->display,xvar->root,
+				 xvar->visual,AllocNone);
+  mlx_int_rgb_conversion(xvar);
+  return (xvar);
+}
+
+
+/*
+** pshm_format of -1 :  Not XYBitmap|XYPixmap|ZPixmap
+** alpha libX need a check of the DISPLAY env var, or shm is allowed
+** in remote Xserver connections.
+*/
+
+int	mlx_int_deal_shm(t_xvar *xvar)
+{
+  int	use_pshm;
+  int	bidon;
+  char	*dpy;
+  char	buff[33];
+
+  xvar->use_xshm = XShmQueryVersion(xvar->display,&bidon,&bidon,&(use_pshm));
+  if (xvar->use_xshm && use_pshm)
+    xvar->pshm_format = XShmPixmapFormat(xvar->display);
+  else
+    xvar->pshm_format = -1;
+  gethostname(buff,32);
+  dpy = getenv(ENV_DISPLAY);
+  if (dpy && strlen(dpy) && *dpy!=':' && strncmp(dpy,buff,strlen(buff)) &&
+      strncmp(dpy,LOCALHOST,strlen(LOCALHOST)) )
+    {
+      xvar->pshm_format = -1;
+      xvar->use_xshm = 0;
+    }
+}
+
+/*
+** TrueColor Visual is needed to have *_mask correctly set
+*/
+
+int	mlx_int_rgb_conversion(t_xvar *xvar)
+{
+  bzero(xvar->decrgb,sizeof(int)*6);
+  while (!(xvar->visual->red_mask&1))
+    { xvar->visual->red_mask >>= 1; xvar->decrgb[0] ++; }
+  while (xvar->visual->red_mask&1)
+    { xvar->visual->red_mask >>= 1; xvar->decrgb[1] ++; }
+  while (!(xvar->visual->green_mask&1))
+    { xvar->visual->green_mask >>= 1; xvar->decrgb[2] ++; }
+  while (xvar->visual->green_mask&1)
+    { xvar->visual->green_mask >>= 1; xvar->decrgb[3] ++; }
+  while (!(xvar->visual->blue_mask&1))
+    { xvar->visual->blue_mask >>= 1; xvar->decrgb[4] ++; }
+  while (xvar->visual->blue_mask&1)
+    { xvar->visual->blue_mask >>= 1; xvar->decrgb[5] ++; }
+}