X-Git-Url: https://git.jsancho.org/?a=blobdiff_plain;f=gacela_GL.lisp;h=b890c25a2f96058e13903a372bb97ac25d3c7910;hb=00abf12486704814b6aa12d8b162135df6637141;hp=8b532f33e7f3a21022e8cfe76081d074f9e20eda;hpb=90f83164ea36dae4c0f3370f8ebbf7e30fe83297;p=gacela.git

diff --git a/gacela_GL.lisp b/gacela_GL.lisp
index 8b532f3..b890c25 100644
--- a/gacela_GL.lisp
+++ b/gacela_GL.lisp
@@ -15,7 +15,20 @@
 ;;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 
-(in-package :gacela)
+(eval-when (compile load eval)
+	   (when (not (find-package 'gacela)) (make-package 'gacela :nicknames '(gg) :use '(lisp)))
+	   (in-package 'gacela :nicknames '(gg) :use '(lisp)))
+
+
+(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 <GL/gl.h>")
 (clines "#include <GL/glu.h>")
@@ -196,6 +209,9 @@
 (defcfun "int gacela_gluBuild2DMipmaps (int target, int internalFormat, int width, int height, int format, int type, int data)" 0
   "return gluBuild2DMipmaps (target, internalFormat, width, height, format, type, data);")
 
+(defcfun "void gacela_gluLookAt (double eyeX, double eyeY, double eyeZ, double centerX, double centerY, double centerZ, double upX, double upY, double upZ)" 0
+  "gluLookAt (eyeX, eyeY, eyeZ, centerX, centerY, centerZ, upX, upY, upZ);")
+
 (defentry glBegin (int) (void "gacela_glBegin"))
 (defentry glClear (int) (void "gacela_glClear"))
 (defentry glClearColor (float float float float) (void "gacela_glClearColor"))
@@ -228,3 +244,4 @@
 
 (defentry gluPerspective (double double double double) (void "gacela_gluPerspective"))
 (defentry gluBuild2DMipmaps (int int int int int int int) (int "gacela_gluBuild2DMipmaps"))
+(defentry gluLookAt (double double double double double double double double double) (void "gacela_gluLookAt"))