From: jsancho <devnull@localhost>
Date: Wed, 17 Aug 2011 15:53:02 +0000 (+0000)
Subject: (no commit message)
X-Git-Url: https://git.jsancho.org/?a=commitdiff_plain;h=5e8896b40426c515f4eb64e0f152c896ddd2d73d;p=gacela.git

---

diff --git a/games/asteroids/Asteroid.png b/games/asteroids/Asteroid.png
index c6fdf24..71bbc21 100644
Binary files a/games/asteroids/Asteroid.png and b/games/asteroids/Asteroid.png differ
diff --git a/games/asteroids/Ship1.png b/games/asteroids/Ship1.png
index b385753..d457940 100644
Binary files a/games/asteroids/Ship1.png and b/games/asteroids/Ship1.png differ
diff --git a/src/gacela_SDL.c b/src/gacela_SDL.c
index f7f4151..ba567b5 100644
--- a/src/gacela_SDL.c
+++ b/src/gacela_SDL.c
@@ -199,7 +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
@@ -483,6 +503,7 @@ SDL_register_functions (void* data)
   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);
diff --git a/src/gacela_draw.scm b/src/gacela_draw.scm
index 5fbc92e..5290dc4 100644
--- a/src/gacela_draw.scm
+++ b/src/gacela_draw.scm
@@ -59,11 +59,16 @@
   (cond ((3d-mode?) (glVertex3f x y z))
 	(else (glVertex2f x y))))
 
-(define (load-image-for-texture filename)
+(define (load-image filename)
   (init-sdl)
   (let ((image (IMG_Load filename)))
     (cond (image
-	   (SDL_SetAlpha image 0 0)
+	   (SDL_DisplayFormatAlpha image)))))
+  
+(define (load-image-for-texture filename)
+  (init-sdl)
+  (let ((image (load-image filename)))
+    (cond (image
 	   (let* ((width (surface-w image)) (height (surface-h image))
 		  (power-2 (nearest-power-of-two (min width height)))
 		  (resized-image #f))
@@ -86,12 +91,12 @@
     (cond (image
 	   (let ((width (surface-w image)) (height (surface-h image))
 		 (byteorder (if (= SDL_BYTEORDER SDL_LIL_ENDIAN)
-				(if (= (surface-format-BytesPerPixel image) 3) GL_RGB GL_RGBA)
-				(if (= (surface-format-BytesPerPixel image) 3) GL_BGR GL_BGRA)))
+				(if (= (surface-format-BytesPerPixel image) 3) GL_BGR GL_BGRA)
+				(if (= (surface-format-BytesPerPixel image) 3) GL_RGB GL_RGBA)))
 		 (texture (car (glGenTextures 1))))
 
 	     (glBindTexture GL_TEXTURE_2D texture)
-	     (glTexImage2D GL_TEXTURE_2D 0 3 width height 0 byteorder GL_UNSIGNED_BYTE (surface-pixels image))
+	     (glTexImage2D GL_TEXTURE_2D 0 4 width height 0 byteorder GL_UNSIGNED_BYTE (surface-pixels image))
 	     (glTexParameteri GL_TEXTURE_2D GL_TEXTURE_MIN_FILTER min-filter)
 	     (glTexParameteri GL_TEXTURE_2D GL_TEXTURE_MAG_FILTER mag-filter)
 	     (set-texture-size! texture real-w real-h)