1 /*
2  * Copyright (C) 2001-2015, AdaCore
3  * Copyright (C) 1998 Janne L�f <jlof@mail.student.oulu.fi>
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Library General Public
7  * License as published by the Free Software Foundation; either
8  * version 2 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * Library General Public License for more details.
14  *
15  * You should have received a copy of the GNU Library General Public
16  * License along with this library; if not, write to the Free
17  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18  */
19 
20 #ifndef __GDK_GL_H__
21 #define __GDK_GL_H__
22 
23 #include <glib.h>
24 #include <cairo/cairo.h>
25 
26 #ifdef G_OS_WIN32
27  /* The GL/gl.h on Windows requires you to include <windows.h>
28   * anyway, so we might as well include it here.
29   */
30  #include <windows.h>
31 #endif
32 
33 #include <gdk/gdk.h>
34 
35 G_BEGIN_DECLS
36 
37 /*
38  * These definitions are duplicated from GL/glx.h that comes with Mesa.
39  * I don't want every program to include GL/glx.h because GtkGLArea
40  * supports lecacy systems like Windows. You can still use GLX_xxxx
41  * attributes with these, but then you lose portability.
42  */
43 enum _GDK_GL_CONFIGS {
44         GDK_GL_NONE             = 0,
45 	GDK_GL_USE_GL		= 1,
46 	GDK_GL_BUFFER_SIZE	= 2,
47 	GDK_GL_LEVEL		= 3,
48 	GDK_GL_RGBA		= 4,
49 	GDK_GL_DOUBLEBUFFER	= 5,
50 	GDK_GL_STEREO		= 6,
51 	GDK_GL_AUX_BUFFERS	= 7,
52 	GDK_GL_RED_SIZE		= 8,
53 	GDK_GL_GREEN_SIZE	= 9,
54 	GDK_GL_BLUE_SIZE	= 10,
55 	GDK_GL_ALPHA_SIZE	= 11,
56 	GDK_GL_DEPTH_SIZE	= 12,
57 	GDK_GL_STENCIL_SIZE	= 13,
58 	GDK_GL_ACCUM_RED_SIZE	= 14,
59 	GDK_GL_ACCUM_GREEN_SIZE	= 15,
60 	GDK_GL_ACCUM_BLUE_SIZE	= 16,
61 	GDK_GL_ACCUM_ALPHA_SIZE	= 17,
62 
63 	/* GLX_EXT_visual_info extension */
64 	GDK_GL_X_VISUAL_TYPE_EXT                = 0x22,
65 	GDK_GL_TRANSPARENT_TYPE_EXT	        = 0x23,
66 	GDK_GL_TRANSPARENT_INDEX_VALUE_EXT	= 0x24,
67 	GDK_GL_TRANSPARENT_RED_VALUE_EXT	= 0x25,
68 	GDK_GL_TRANSPARENT_GREEN_VALUE_EXT	= 0x26,
69 	GDK_GL_TRANSPARENT_BLUE_VALUE_EXT	= 0x27,
70 	GDK_GL_TRANSPARENT_ALPHA_VALUE_EXT	= 0x28
71 };
72 
73 
74 #define GDK_TYPE_GL_CONTEXT            (gdk_gl_context_get_type())
75 #define GDK_GL_CONTEXT(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GDK_TYPE_GL_CONTEXT, GdkGLContext))
76 #define GDK_GL_CONTEXT_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST (klass, GDK_TYPE_GL_CONTEXT, GdkGLContextClass))
77 #define GDK_IS_GL_CONTEXT(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GDK_TYPE_GL_CONTEXT))
78 #define GDK_IS_GL_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_GL_CONTEXT))
79 #define GDK_GL_CONTEXT_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_GL_CONTEXT, GdkGLContext))
80 
81 typedef struct _GdkGLContext GdkGLContext;
82 
83 
84 gint          gdk_gl_query(void);
85 gchar        *gdk_gl_get_info(void);
86 
87 GdkVisual    *gdk_gl_choose_visual(int *attrlist);
88 int           gdk_gl_get_config(GdkVisual *visual, int attrib);
89 
90 GType         gdk_gl_context_get_type(void);
91 GdkGLContext *gdk_gl_context_new(GdkVisual *visual);
92 GdkGLContext *gdk_gl_context_share_new(GdkVisual *visual, GdkGLContext *sharelist, gint direct);
93 GdkGLContext *gdk_gl_context_attrlist_share_new(int *attrlist, GdkGLContext *sharelist, gint direct);
94 
95 gint          gdk_gl_make_current(GdkWindow *window, GdkGLContext *context);
96 void          gdk_gl_swap_buffers(GdkWindow *window);
97 
98 
99 void          gdk_gl_wait_gdk(void);
100 void          gdk_gl_wait_gl(void);
101 
102 /* fonts */
103 // void gdk_gl_use_gdk_font(GdkFont *font, int first, int count, int list_base);
104 
105 
106 #ifndef GTKGL_DISABLE_DEPRECATED
107 #  define gdk_gl_context_ref(context)   g_object_ref(context)
108 #  define gdk_gl_context_unref(context) g_object_unref(context)
109 #  define gdk_gl_pixmap_ref(pixmap)     g_object_ref(pixmap)
110 #  define gdk_gl_pixmap_unref(pixmap)   g_object_unref(pixmap)
111 #endif
112 
113 G_END_DECLS
114 
115 #endif /* __GDK_GL_H__ */
116 
117