improve gexit with init function and add basic mlx image gestion

libs/minilibx-macos/mlx_string_put.c

@@ -0,0 +1,72 @@
+
+#include "mlx.h"
+
+#include "font.c"
+
+#define ATLAS_NB_CHAR 95
+
+#define FONT_WIDTH	((font_atlas.width/(ATLAS_NB_CHAR))-2)
+
+
+int mlx_put_image_to_window_scale(void *mlx_ptr, void *win_ptr, void *img_ptr, int sx, int sy, int sw, int sh, int dx, int dy, int dw, int dh, unsigned int color);
+
+void mlx_int_fill(unsigned char *data, int sl)
+{
+  int i, j;
+  j = 0;
+  while (j < font_atlas.height)
+    {
+      i = 0;
+      while (i < font_atlas.width)
+	{
+	  data[j*sl+i*4] = font_atlas.pixel_data[j*font_atlas.width*font_atlas.bytes_per_pixel+i*4+2];
+	  data[j*sl+i*4+1] = font_atlas.pixel_data[j*font_atlas.width*font_atlas.bytes_per_pixel+i*4+1];
+	  data[j*sl+i*4+2] = font_atlas.pixel_data[j*font_atlas.width*font_atlas.bytes_per_pixel+i*4];
+	  data[j*sl+i*4+3] = 0xFF - font_atlas.pixel_data[j*font_atlas.width*font_atlas.bytes_per_pixel+i*4+3];
+	  i ++;
+	}
+      j ++;
+    }
+    
+}
+
+int mlx_string_put(void *mlx_ptr, void *win_ptr, int x, int y, int color, char *string)
+{
+  static void *font = (void *)0;
+  static unsigned char *data = (void *)0;
+  static int size_line = 0;
+  int bpp;
+  int endian;
+  int pos;
+  int val;
+  int dest_w;
+  int dest_h;
+
+  if (font == (void *)0)
+    {
+      font = mlx_new_image(mlx_ptr, font_atlas.width, font_atlas.height);
+      data = (unsigned char *)mlx_get_data_addr(font, &bpp, &size_line, &endian);
+      mlx_int_fill(data, size_line);
+    }
+
+  color = (color&0xFFFFFF)|0xFF000000;
+
+  //  dest_w = (FONT_WIDTH*5)/7;   /// ratio with X11 standard mlx_string_put
+  //  dest_h = (font_atlas.height*5)/7;
+  dest_w = FONT_WIDTH;
+  dest_h = font_atlas.height;
+  y = y - (dest_h*3)/4;
+
+  pos = 0;
+  while (*string)
+    {
+      if (*string >= 32 && *string <= 127)
+	val = *string - 32;
+      else
+	val = 31;
+      mlx_put_image_to_window_scale(mlx_ptr, win_ptr, font, val*(FONT_WIDTH+2), 0, FONT_WIDTH, font_atlas.height, x+pos*dest_w, y, dest_w, dest_h, color);
+      pos ++;
+      string ++;
+    }
+  return (0);
+}