X-Git-Url: https://git.jsancho.org/?a=blobdiff_plain;f=src%2Fgacela_SDL.c;h=ba567b52434c3aa802153b600414e28bb22a579f;hb=ca3edcecf937f854c1b5d9eeac566d85dc749cd0;hp=ba473284216251687cc4fabe6db5feba70a51e18;hpb=141a622804c650ab7e2b61ecc3af87c4be6495c5;p=gacela.git

diff --git a/src/gacela_SDL.c b/src/gacela_SDL.c
index ba47328..ba567b5 100644
--- a/src/gacela_SDL.c
+++ b/src/gacela_SDL.c
@@ -164,6 +164,12 @@ gacela_SDL_SetVideoMode (SCM width, SCM height, SCM bpp, SCM flags)
   }
 }
 
+SCM
+gacela_SDL_FreeSurface (SCM surface)
+{
+  return scm_from_int (free_surface (surface));
+}
+
 SCM
 gacela_SDL_WM_SetCaption (SCM title, SCM icon)
 {
@@ -193,7 +199,27 @@ gacela_SDL_GetTicks (void)
 SCM
 gacela_SDL_DisplayFormat (SCM surface)
 {
-  return scm_from_int ((int)SDL_DisplayFormat (get_surface_address (surface)));
+  SDL_Surface *new = SDL_DisplayFormat (get_surface_address (surface));
+
+  if (new) {
+    return make_surface (scm_from_locale_string (get_surface_filename (surface)), new);
+  }
+  else {
+    return SCM_BOOL_F;
+  }
+}
+
+SCM
+gacela_SDL_DisplayFormatAlpha (SCM surface)
+{
+  SDL_Surface *new = SDL_DisplayFormatAlpha (get_surface_address (surface));
+
+  if (new) {
+    return make_surface (scm_from_locale_string (get_surface_filename (surface)), new);
+  }
+  else {
+    return SCM_BOOL_F;
+  }
 }
 
 SCM
@@ -208,6 +234,12 @@ gacela_SDL_SetColorKey (SCM surface, SCM flag, SCM key)
   return scm_from_int (SDL_SetColorKey (get_surface_address (surface), scm_to_int (flag), scm_to_int (key)));
 }
 
+SCM
+gacela_SDL_SetAlpha (SCM surface, SCM flag, SCM alpha)
+{
+  return scm_from_int (SDL_SetAlpha (get_surface_address (surface), scm_to_int (flag), scm_to_int (alpha)));
+}
+
 SCM
 gacela_SDL_LoadBMP (SCM file)
 {
@@ -465,13 +497,16 @@ SDL_register_functions (void* data)
   scm_c_define_gsubr ("SDL_Init", 1, 0, 0, gacela_SDL_Init);
   scm_c_define_gsubr ("SDL_Quit", 0, 0, 0, gacela_SDL_Quit);
   scm_c_define_gsubr ("SDL_SetVideoMode", 4, 0, 0, gacela_SDL_SetVideoMode);
+  scm_c_define_gsubr ("SDL_FreeSurface", 1, 0, 0, gacela_SDL_FreeSurface);
   scm_c_define_gsubr ("SDL_WM_SetCaption", 2, 0, 0, gacela_SDL_WM_SetCaption);
   scm_c_define_gsubr ("SDL_Flip", 1, 0, 0, gacela_SDL_Flip);
   scm_c_define_gsubr ("SDL_Delay", 1, 0, 0, gacela_SDL_Delay);
   scm_c_define_gsubr ("SDL_GetTicks", 0, 0, 0, gacela_SDL_GetTicks);
   scm_c_define_gsubr ("SDL_DisplayFormat", 1, 0, 0, gacela_SDL_DisplayFormat);
+  scm_c_define_gsubr ("SDL_DisplayFormatAlpha", 1, 0, 0, gacela_SDL_DisplayFormatAlpha);
   scm_c_define_gsubr ("SDL_MapRGB", 4, 0, 0, gacela_SDL_MapRGB);
   scm_c_define_gsubr ("SDL_SetColorKey", 3, 0, 0, gacela_SDL_SetColorKey);
+  scm_c_define_gsubr ("SDL_SetAlpha", 3, 0, 0, gacela_SDL_SetAlpha);
   scm_c_define_gsubr ("SDL_LoadBMP", 1, 0, 0, gacela_SDL_LoadBMP);
   scm_c_define_gsubr ("IMG_Load", 1, 0, 0, gacela_IMG_Load);
   scm_c_define_gsubr ("SDL_GetVideoInfo", 0, 0, 0, gacela_SDL_GetVideoInfo);