From e2b3664ab965f251fb9ec1e5588510293ef52e61 Mon Sep 17 00:00:00 2001
From: Javier Sancho <jsf@jsancho.org>
Date: Thu, 14 Jun 2012 21:24:26 +0200
Subject: [PATCH] Fullscreen mode.

---
 src/gacela.scm |  7 +++++--
 src/sdl.c      |  7 +++++++
 src/video.scm  | 23 ++++++++++++++++++++---
 3 files changed, 32 insertions(+), 5 deletions(-)

diff --git a/src/gacela.scm b/src/gacela.scm
index 9096ddf..63d6bd3 100644
--- a/src/gacela.scm
+++ b/src/gacela.scm
@@ -151,8 +151,9 @@
 (define *bpp-screen* 32)
 (define *frames-per-second* 20)
 (define *mode* '2d)
+(define *fullscreen* 'off)
 
-(define* (set-game-properties! #:key title width height bpp fps mode)
+(define* (set-game-properties! #:key title width height bpp fps mode fullscreen)
   (if title
       (set-screen-title! title))
   (if bpp
@@ -166,10 +167,12 @@
       (set-frames-per-second! fps))
   (if mode
       (if (eq? mode '3d) (set-3d-mode) (set-2d-mode)))
+  (if fullscreen
+      (set-fullscreen! fullscreen))
   (get-game-properties))
 
 (define (get-game-properties)
-  `((title . ,(get-screen-title)) (width . ,(get-screen-width)) (height . ,(get-screen-height)) (bpp . ,(get-screen-bpp)) (fps . ,(get-frames-per-second)) (mode . ,(if (3d-mode?) '3d '2d))))
+  `((title . ,(get-screen-title)) (width . ,(get-screen-width)) (height . ,(get-screen-height)) (bpp . ,(get-screen-bpp)) (fps . ,(get-frames-per-second)) (mode . ,(if (3d-mode?) '3d '2d)) (fullscreen . ,(get-fullscreen))))
 
 
 ;;; Mobs Factory
diff --git a/src/sdl.c b/src/sdl.c
index c59d607..4fba1ff 100644
--- a/src/sdl.c
+++ b/src/sdl.c
@@ -176,6 +176,12 @@ gacela_SDL_WM_SetCaption (SCM title, SCM icon)
   return SCM_UNSPECIFIED;
 }
 
+SCM
+gacela_SDL_WM_ToggleFullScreen(SCM surface)
+{
+  return scm_from_int (SDL_WM_ToggleFullScreen (get_surface_address (surface)));
+}
+
 SCM
 gacela_SDL_Flip (SCM screen)
 {
@@ -504,6 +510,7 @@ init_gacela_sdl (void *data)
   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_WM_ToggleFullScreen", 1, 0, 0, gacela_SDL_WM_ToggleFullScreen);
   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);
diff --git a/src/video.scm b/src/video.scm
index 466438f..ad74c86 100644
--- a/src/video.scm
+++ b/src/video.scm
@@ -39,6 +39,8 @@
 	    3d-mode?
 	    get-frames-per-second
 	    set-frames-per-second!
+	    get-fullscreen
+	    set-fullscreen!
 	    init-frame-time
 	    get-frame-time
 	    delay-frame
@@ -74,16 +76,18 @@
 (define screen #f)
 (define flags 0)
 
-(define* (init-video width height bpp #:key (mode '2d) (title "") (fps 20))
+(define* (init-video width height bpp #:key (mode '2d) (title "") (fps 20) (fullscreen 'off))
   (SDL_Init SDL_INIT_VIDEO)
   (let ((info (SDL_GetVideoInfo)))
     (SDL_GL_SetAttribute SDL_GL_DOUBLEBUFFER 1)
     (set! flags (+ SDL_OPENGL SDL_GL_DOUBLEBUFFER SDL_HWPALETTE SDL_RESIZABLE
 		   (if (= (assoc-ref info 'hw_available) 0) SDL_SWSURFACE SDL_HWSURFACE)
-		   (if (= (assoc-ref info 'blit_hw) 0) 0 SDL_HWACCEL)))
+		   (if (= (assoc-ref info 'blit_hw) 0) 0 SDL_HWACCEL)
+		   (if (eq? fullscreen 'on) SDL_FULLSCREEN 0)))
     (set! screen (SDL_SetVideoMode width height bpp flags))
     (set-screen-title! title)
     (set-frames-per-second! fps)
+    (set-fullscreen! fullscreen #f)
     (init-gl)
     (if (eq? mode '3d) (set-3d-mode) (set-2d-mode))))
 
@@ -98,7 +102,7 @@
 
 (define (set-screen-bpp! bpp)
   (cond (screen
-	 (set! screen (SDL_SetVideoMode (get-screen-width) (get-screen-height) bpp flags)))))
+	 (set! screen (SDL_SetVideoMode (get-screen-width) (get-screen-height) (get-screen-bpp) flags)))))
 
 (define (resize-screen width height)
   (cond (screen
@@ -146,6 +150,19 @@
   (eq? mode '3d))
 
 
+(define fullscreen 'off)
+
+(define* (set-fullscreen! fs #:optional (toggle #t))
+  (cond ((or (and (eq? fullscreen 'on) (eq? fs 'off))
+	     (and (eq? fullscreen 'off) (eq? fs 'on)))
+	 (set! fullscreen fs)
+	 (cond (toggle
+		(SDL_WM_ToggleFullScreen screen))))))
+
+(define (get-fullscreen)
+  fullscreen)
+
+
 (define (init-gl)
   (glShadeModel GL_SMOOTH)
   (glClearColor 0 0 0 0)
-- 
2.39.2