Added Ecore::Evas::Buffer.

[ruby-ecore.git] / src / ecore_evas / rb_buffer.c

diff --git a/src/ecore_evas/rb_buffer.c b/src/ecore_evas/rb_buffer.c
new file mode 100644 (file)
index 0000000..db316cc
--- /dev/null
+++ b/src/ecore_evas/rb_buffer.c
@@ -0,0 +1,94 @@
+/*
+ * $Id: rb_buffer.c 174 2005-01-19 21:31:04Z tilman $
+ *
+ * Copyright (C) 2004-2005 ruby-ecore team (see AUTHORS)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <ruby.h>
+
+#include <Ecore.h>
+#include <Ecore_Evas.h>
+
+#include "../ecore/rb_ecore.h"
+#include "rb_ecore_evas_main.h"
+#include "rb_ecore_evas.h"
+
+static void c_free (RbEcoreEvas *ee)
+{
+       c_ecore_evas_free (ee, true);
+}
+
+/*
+ * call-seq:
+ *  Ecore::Evas::Buffer.new([w, h]) => buffer
+ *
+ * Creates an Ecore::Evas::Buffer object.
+ */
+static VALUE c_new (int argc, VALUE *argv, VALUE klass)
+{
+       VALUE self, w, h;
+       RbEcoreEvas *ee = NULL;
+       int iw = 0, ih = 0;
+
+       self = Data_Make_Struct (klass, RbEcoreEvas,
+                                c_ecore_evas_mark, c_free, ee);
+
+       rb_scan_args (argc, argv, "02", &w, &h);
+
+       if (!NIL_P (w)) {
+               Check_Type (w, T_FIXNUM);
+               iw = FIX2INT (w);
+       }
+
+       if (!NIL_P (h)) {
+               Check_Type (h, T_FIXNUM);
+               ih = FIX2INT (h);
+       }
+
+       ecore_init ();
+       ecore_evas_init ();
+
+       ee->real = ecore_evas_buffer_new (iw, ih);
+
+       rb_obj_call_init (self, 0, NULL);
+
+       return self;
+}
+
+static VALUE c_pixels_get (VALUE self)
+{
+       const int *p;
+       int w = 0, h = 0;
+
+       GET_OBJ (self, RbEcoreEvas, ee);
+
+       p = ecore_evas_buffer_pixels_get (ee->real);
+       if (!p)
+               return rb_str_new2 (""); /* FIXME raise an error instead? */
+
+       ecore_evas_geometry_get (ee->real, NULL, NULL, &w, &h);
+
+       return rb_str_new ((char *) p, h * w * 4);
+}
+
+void Init_Buffer (void)
+{
+       VALUE c = rb_define_class_under (mEvas, "Buffer", cEcoreEvas);
+
+       rb_define_singleton_method (c, "new", c_new, -1);
+       rb_define_method (c, "pixels", c_pixels_get, 0);
+}