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
30 #include <stdio.h>
31 #include <stdlib.h>
32 #include <string.h>
33 #include <assert.h>
34 #include <stdarg.h>
35 #include <dlfcn.h>
36 #include <pthread.h>
37 #include <inttypes.h>
38 #include "appledri.h"
39 #include "apple_glx.h"
40 #include "apple_glx_context.h"
41 #include "apple_cgl.h"
42
43 static bool initialized = false;
44 static int dri_event_base = 0;
45
46 int
apple_get_dri_event_base(void)47 apple_get_dri_event_base(void)
48 {
49 if (!initialized) {
50 fprintf(stderr,
51 "error: dri_event_base called before apple_init_glx!\n");
52 abort();
53 }
54 return dri_event_base;
55 }
56
57 static void
surface_notify_handler(Display * dpy,unsigned int uid,int kind)58 surface_notify_handler(Display * dpy, unsigned int uid, int kind)
59 {
60
61 switch (kind) {
62 case AppleDRISurfaceNotifyDestroyed:
63 apple_glx_diagnostic("%s: surface destroyed %u\n", __func__, uid);
64 apple_glx_surface_destroy(uid);
65 break;
66
67 case AppleDRISurfaceNotifyChanged:{
68 int updated;
69
70 updated = apple_glx_context_surface_changed(uid, pthread_self());
71
72 apple_glx_diagnostic("surface notify updated %d\n", updated);
73 }
74 break;
75
76 default:
77 fprintf(stderr, "unhandled kind of event: %d in %s\n", kind, __func__);
78 }
79 }
80
81 xp_client_id
apple_glx_get_client_id(void)82 apple_glx_get_client_id(void)
83 {
84 static xp_client_id id;
85
86 if (0 == id) {
87 if ((XP_Success != xp_init(XP_IN_BACKGROUND)) ||
88 (Success != xp_get_client_id(&id))) {
89 return 0;
90 }
91 }
92
93 return id;
94 }
95
96 /* Return true if an error occurred. */
97 bool
apple_init_glx(Display * dpy)98 apple_init_glx(Display * dpy)
99 {
100 int eventBase, errorBase;
101 int major, minor, patch;
102
103 if (!XAppleDRIQueryExtension(dpy, &eventBase, &errorBase))
104 return true;
105
106 if (!XAppleDRIQueryVersion(dpy, &major, &minor, &patch))
107 return true;
108
109 if (initialized)
110 return false;
111
112 apple_glx_log_init();
113
114 apple_glx_log(ASL_LEVEL_INFO, "Initializing libGL.");
115
116 apple_cgl_init();
117 (void) apple_glx_get_client_id();
118
119 XAppleDRISetSurfaceNotifyHandler(surface_notify_handler);
120
121 /* This should really be per display. */
122 dri_event_base = eventBase;
123 initialized = true;
124
125 return false;
126 }
127
128 void
apple_glx_swap_buffers(void * ptr)129 apple_glx_swap_buffers(void *ptr)
130 {
131 struct apple_glx_context *ac = ptr;
132
133 apple_cgl.flush_drawable(ac->context_obj);
134 }
135
136 void
apple_glx_waitx(Display * dpy,void * ptr)137 apple_glx_waitx(Display * dpy, void *ptr)
138 {
139 struct apple_private_context *ac = ptr;
140
141 (void) ac;
142
143 glFlush();
144 glFinish();
145 XSync(dpy, False);
146 }
147