X-Git-Url: https://git.jsancho.org/?a=blobdiff_plain;f=gacela_SDL.lisp;h=6ff5c1b02278dbe9d5860fc920329b0af771f0d3;hb=4fe9bd9e78b0e3cee1133da2abcb05bc98322b31;hp=b077d788c78b48ab18250af7516684ec3c6cdfbf;hpb=1c8cab0374573dbf66a2d0a01921baeff0c90351;p=gacela.git

diff --git a/gacela_SDL.lisp b/gacela_SDL.lisp
index b077d78..6ff5c1b 100644
--- a/gacela_SDL.lisp
+++ b/gacela_SDL.lisp
@@ -17,55 +17,55 @@
 
 (in-package :gacela)
 
+(defmacro mapcconst (type c-type name)
+  (let ((c-header (concatenate 'string c-type " gacela_" name " (void)"))
+	(c-body (concatenate 'string "return " name ";"))
+	(c-name (concatenate 'string "gacela_" name))
+	(lisp-name (intern (string-upcase name))))
+    `(progn
+       (defcfun ,c-header 0 ,c-body)
+       (defentry ,lisp-name () (,type ,c-name))
+       (eval-when (load) (defconstant ,lisp-name (,lisp-name))))))
+
 (clines "#include <SDL/SDL.h>")
 (clines "#include <SDL/SDL_image.h>")
 (clines "#include <SDL/SDL_ttf.h>")
 (clines "#include <SDL/SDL_mixer.h>")
 (clines "#include <SDL/SDL_rotozoom.h>")
 
-;;; These are the flags which may be passed to SDL_Init()
-(defconstant SDL_INIT_TIMER		#x00000001)
-(defconstant SDL_INIT_AUDIO		#x00000010)
-(defconstant SDL_INIT_VIDEO		#x00000020)
-(defconstant SDL_INIT_CDROM		#x00000100)
-(defconstant SDL_INIT_JOYSTICK		#x00000200)
-(defconstant SDL_INIT_NOPARACHUTE	#x00100000)
-(defconstant SDL_INIT_EVENTTHREAD	#x01000000)
-(defconstant SDL_INIT_EVERYTHING	#x0000FFFF)
-
-
-;;; These are the currently supported flags for the SDL_surface
-;;; Available for SDL_CreateRGBSurface() or SDL_SetVideoMode()
-(defconstant SDL_SWSURFACE		#x00000000)
-(defconstant SDL_HWSURFACE		#x00000001)
-(defconstant SDL_ASYNCBLIT		#x00000004)
-
-
-;;; Available for SDL_SetVideoMode()
-(defconstant SDL_ANYFORMAT		#x10000000)
-(defconstant SDL_HWPALETTE		#x20000000)
-(defconstant SDL_DOUBLEBUF		#x40000000)
-(defconstant SDL_FULLSCREEN		#x80000000)
-(defconstant SDL_OPENGL			#x00000002)
-(defconstant SDL_OPENGLBLIT		#x0000000A)
-(defconstant SDL_RESIZABLE		#x00000010)
-(defconstant SDL_NOFRAME		#x00000020)
-
-;;; Used internally (read-only)
-(defconstant SDL_HWACCEL                #x00000100)
-(defconstant SDL_SRCCOLORKEY            #x00001000)
-
-;;; For setting the OpenGL window attributes
-(defconstant SDL_GL_DOUBLEBUFFER        5)
-
-;;; Keyboard
-(defconstant SDL_DEFAULT_REPEAT_DELAY     500)
-(defconstant SDL_DEFAULT_REPEAT_INTERVAL  30)
-
-;;; The two types of endianness
-(defconstant SDL_LIL_ENDIAN  1234)
-(defconstant SDL_BIG_ENDIAN  4321)
-
+;;; SDL constants as functions
+(mapcconst int "int" "SDL_INIT_TIMER")
+(mapcconst int "int" "SDL_INIT_AUDIO")
+(mapcconst int "int" "SDL_INIT_VIDEO")
+(mapcconst int "int" "SDL_INIT_CDROM")
+(mapcconst int "int" "SDL_INIT_JOYSTICK")
+(mapcconst int "int" "SDL_INIT_NOPARACHUTE")
+(mapcconst int "int" "SDL_INIT_EVENTTHREAD")
+(mapcconst int "int" "SDL_INIT_EVERYTHING")
+
+(mapcconst int "int" "SDL_SWSURFACE")
+(mapcconst int "int" "SDL_HWSURFACE")
+(mapcconst int "int" "SDL_ASYNCBLIT")
+
+(mapcconst int "int" "SDL_ANYFORMAT")
+(mapcconst int "int" "SDL_HWPALETTE")
+(mapcconst int "int" "SDL_DOUBLEBUF")
+(mapcconst int "int" "SDL_FULLSCREEN")
+(mapcconst int "int" "SDL_OPENGL")
+(mapcconst int "int" "SDL_OPENGLBLIT")
+(mapcconst int "int" "SDL_RESIZABLE")
+(mapcconst int "int" "SDL_NOFRAME")
+
+(mapcconst int "int" "SDL_HWACCEL")
+(mapcconst int "int" "SDL_SRCCOLORKEY")
+
+(mapcconst int "int" "SDL_GL_DOUBLEBUFFER")
+
+(mapcconst int "int" "SDL_DEFAULT_REPEAT_DELAY")
+(mapcconst int "int" "SDL_DEFAULT_REPEAT_INTERVAL")
+
+(mapcconst int "int" "SDL_LIL_ENDIAN")
+(mapcconst int "int" "SDL_BIG_ENDIAN")
 
 ;;; SDL Functions
 (defcfun "int gacela_SDL_Init (int flags)" 0