1 /*
2  Copyright (c) 2008, 2009 Apple Inc.
3 
4  Permission is hereby granted, free of charge, to any person
5  obtaining a copy of this software and associated documentation files
6  (the "Software"), to deal in the Software without restriction,
7  including without limitation the rights to use, copy, modify, merge,
8  publish, distribute, sublicense, and/or sell copies of the Software,
9  and to permit persons to whom the Software is furnished to do so,
10  subject to the following conditions:
11 
12  The above copyright notice and this permission notice shall be
13  included in all copies or substantial portions of the Software.
14 
15  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18  NONINFRINGEMENT.  IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT
19  HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20  WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22  DEALINGS IN THE SOFTWARE.
23 
24  Except as contained in this notice, the name(s) of the above
25  copyright holders shall not be used in advertising or otherwise to
26  promote the sale, use or other dealings in this Software without
27  prior written authorization.
28 */
29 #ifndef APPLE_GLX_CONTEXT_H
30 #define APPLE_GLX_CONTEXT_H
31 
32 /* <rdar://problem/6953344> */
33 #define glTexImage1D glTexImage1D_OSX
34 #define glTexImage2D glTexImage2D_OSX
35 #define glTexImage3D glTexImage3D_OSX
36 #include <OpenGL/CGLTypes.h>
37 #include <OpenGL/CGLContext.h>
38 #undef glTexImage1D
39 #undef glTexImage2D
40 #undef glTexImage3D
41 
42 #include <stdbool.h>
43 #include <X11/Xlib.h>
44 #include <GL/glx.h>
45 #define XP_NO_X_HEADERS
46 #include <Xplugin.h>
47 #undef XP_NO_X_HEADERS
48 
49 #include "apple_glx_drawable.h"
50 
51 struct apple_glx_context
52 {
53    CGLContextObj context_obj;
54    CGLPixelFormatObj pixel_format_obj;
55    struct apple_glx_drawable *drawable;
56    pthread_t thread_id;
57    int screen;
58    bool double_buffered;
59    bool uses_stereo;
60    bool need_update;
61    bool is_current;             /* True if the context is current in some thread. */
62    bool made_current;           /* True if the context has ever been made current. */
63 
64    /*
65     * last_surface is set by the pending_destroy code handler for a drawable.
66     * Due to a CG difference, we have to recreate a surface if the window
67     * is unmapped and mapped again.
68     */
69    Window last_surface_window;
70    struct apple_glx_context *previous, *next;
71 };
72 
73 bool apple_glx_create_context(void **ptr, Display * dpy, int screen,
74                               const void *mode, void *sharedContext,
75                               int *errorptr, bool * x11errorptr);
76 void apple_glx_destroy_context(void **ptr, Display * dpy);
77 
78 bool apple_glx_make_current_context(Display * dpy, void *oldptr, void *ptr,
79                                     GLXDrawable drawable);
80 bool apple_glx_is_current_drawable(Display * dpy, void *ptr,
81                                    GLXDrawable drawable);
82 
83 bool apple_glx_copy_context(void *currentptr, void *srcptr, void *destptr,
84                             unsigned long mask, int *errorptr,
85                             bool * x11errorptr);
86 
87 int apple_glx_context_surface_changed(unsigned int uid, pthread_t caller);
88 
89 void apple_glx_context_update(Display * dpy, void *ptr);
90 
91 bool apple_glx_context_uses_stereo(void *ptr);
92 
93 #endif /*APPLE_GLX_CONTEXT_H */
94