add directory argument to Load_Surface()

You can pass NULL if filename is an absolute path

src/init.c

@@ -655,7 +655,7 @@ static byte Parse_skin(T_GFX2_Surface * gui, T_Gui_skin *gfx)
 T_Gui_skin * Load_graphics(const char * skin_file, T_Gradient_array *gradients)
 {
   T_Gui_skin * gfx;
-  char * filename;
+  char * directory;
   size_t len;
   T_GFX2_Surface * gui;
 
@@ -673,25 +673,25 @@ T_Gui_skin * Load_graphics(const char * skin_file, T_Gradient_array *gradients)
   }
   
   // Read the "skin" file
-  len = strlen(Data_directory) + strlen(SKINS_SUBDIRECTORY) + strlen(PATH_SEPARATOR) + strlen(skin_file) + 1;
-  filename = GFX2_malloc(len);
-  if (filename == NULL)
+  len = strlen(Data_directory) + strlen(SKINS_SUBDIRECTORY) + 1;
+  directory = GFX2_malloc(len);
+  if (directory == NULL)
   {
     free(gfx);
     return NULL;
   }
-  snprintf(filename, len, "%s%s%s%s", Data_directory, SKINS_SUBDIRECTORY, PATH_SEPARATOR, skin_file);
+  snprintf(directory, len, "%s%s", Data_directory, SKINS_SUBDIRECTORY);
   
-  gui = Load_surface(filename, gradients);
+  gui = Load_surface(skin_file, directory, gradients);
   if (!gui)
   {
-    sprintf(Gui_loading_error_message, "Unable to load the skin image (missing? not an image file?) : %s\n", filename);
-    free(filename);
+    sprintf(Gui_loading_error_message, "Unable to load the skin image (missing? not an image file?) : %s in %s\n", skin_file, directory);
+    free(directory);
     free(gfx);
     gfx = NULL;
     return NULL;
   }
-  free(filename);
+  free(directory);
   if (Parse_skin(gui, gfx) != 0)
   {
     free(gfx);
@@ -758,7 +758,7 @@ byte * Load_font(const char * font_name, int is_main)
 {
   byte * font = NULL;
   size_t len;
-  char * filename;
+  char * directory;
   T_GFX2_Surface * image;
 
   if (font_name == NULL || font_name[0] == '\0')
@@ -768,20 +768,20 @@ byte * Load_font(const char * font_name, int is_main)
   }
 
   // Read the file containing the image
-  len = strlen(Data_directory) + strlen(SKINS_SUBDIRECTORY) + strlen(PATH_SEPARATOR) + strlen(font_name) + 1;
-  filename = GFX2_malloc(len);
-  if (filename == NULL)
+  len = strlen(Data_directory) + strlen(SKINS_SUBDIRECTORY) + 1;
+  directory = GFX2_malloc(len);
+  if (directory == NULL)
     return NULL;
-  snprintf(filename, len, "%s%s%s%s", Data_directory, SKINS_SUBDIRECTORY, PATH_SEPARATOR, font_name);
+  snprintf(directory, len, "%s%s", Data_directory, SKINS_SUBDIRECTORY);
   
-  image = Load_surface(filename, NULL);
+  image = Load_surface(font_name, directory, NULL);
   if (!image)
   {
-    sprintf(Gui_loading_error_message, "Unable to load the font image (missing? not an image file?)\n%s\n", filename);
-    free(filename);
+    sprintf(Gui_loading_error_message, "Unable to load the font image (missing? not an image file?)\n%s in %s\n", font_name, directory);
+    free(directory);
     return NULL;
   }
-  free(filename);
+  free(directory);
   font = Parse_font(image, is_main);
   Free_GFX2_Surface(image);
   return font;

src/loadsave.c

@@ -605,9 +605,9 @@ void Load_image(T_IO_Context *context)
   }
   if (context->Format != FORMAT_CLIPBOARD)
   {
-    if (context->File_name == NULL || context->File_directory == NULL)
+    if (context->File_name == NULL)
     {
-      GFX2_Log(GFX2_ERROR, "Load_Image() called with NULL file name or directory\n");
+      GFX2_Log(GFX2_ERROR, "Load_Image() called with NULL file name\n");
       Error(0);
       return;
     }
@@ -1192,12 +1192,12 @@ void Load_SDL_Image(T_IO_Context *context)
 #endif
 
 
-T_GFX2_Surface * Load_surface(const char *full_name, T_Gradient_array *gradients)
+T_GFX2_Surface * Load_surface(const char *filename, const char * directory, T_Gradient_array *gradients)
 {
   T_GFX2_Surface * bmp=NULL;
   T_IO_Context context;
 
-  Init_context_surface(&context, full_name, "");
+  Init_context_surface(&context, filename, directory);
   Load_image(&context);
 
   if (context.Surface)

src/loadsave.h

@@ -55,9 +55,9 @@ typedef struct
   
   // File properties
   
-  char * File_name;
-  word * File_name_unicode;
-  char * File_directory;
+  char * File_name;         ///< File name in UTF-8 (or short ASCII file nmae under win32)
+  word * File_name_unicode; ///< Wide character version of the filename
+  char * File_directory;    ///< Directory. If NULL File_name should be the full path name
   byte Format;
   
   // Image properties
@@ -190,9 +190,10 @@ void Image_emergency_backup(void);
 
 ///
 /// Load an arbitrary Surface.
-/// @param full_name Full (absolute) path of the file to load.
+/// @param filename file to load.
+/// @param directory path of the file to load. if NULL, filename have to be a full path name
 /// @param gradients Pass the address of a target T_Gradient_array if you want the gradients, NULL otherwise
-T_GFX2_Surface * Load_surface(const char *full_name, T_Gradient_array *gradients);
+T_GFX2_Surface * Load_surface(const char *filename, const char *directory, T_Gradient_array *gradients);
 
 
 /*

src/text.c

@@ -726,7 +726,7 @@ byte *Render_text_SFont(const char *str, int font_number, int *width, int *heigh
   byte * new_brush = NULL;
 
   // Chargement de la fonte
-  font_surface = Load_surface(Font_name(font_number), NULL);
+  font_surface = Load_surface(Font_name(font_number), NULL, NULL);
   if (!font_surface)
   {
     Verbose_message("Warning", "Error loading font");