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
43static bool initialized = false;
44static int dri_event_base = 0;
45
46const GLuint __glXDefaultPixelStore[9] = { 0, 0, 0, 0, 0, 0, 0, 0, 1 };
47
48int
49apple_get_dri_event_base(void)
50{
51   if (!initialized) {
52      fprintf(stderr,
53              "error: dri_event_base called before apple_init_glx!\n");
54      abort();
55   }
56   return dri_event_base;
57}
58
59static void
60surface_notify_handler(Display * dpy, unsigned int uid, int kind)
61{
62
63   switch (kind) {
64   case AppleDRISurfaceNotifyDestroyed:
65      apple_glx_diagnostic("%s: surface destroyed %u\n", __func__, uid);
66      apple_glx_surface_destroy(uid);
67      break;
68
69   case AppleDRISurfaceNotifyChanged:{
70         int updated;
71
72         updated = apple_glx_context_surface_changed(uid, pthread_self());
73
74         apple_glx_diagnostic("surface notify updated %d\n", updated);
75      }
76      break;
77
78   default:
79      fprintf(stderr, "unhandled kind of event: %d in %s\n", kind, __func__);
80   }
81}
82
83xp_client_id
84apple_glx_get_client_id(void)
85{
86   static xp_client_id id;
87
88   if (0 == id) {
89      if ((XP_Success != xp_init(XP_IN_BACKGROUND)) ||
90          (Success != xp_get_client_id(&id))) {
91         return 0;
92      }
93   }
94
95   return id;
96}
97
98/* Return true if an error occured. */
99bool
100apple_init_glx(Display * dpy)
101{
102   int eventBase, errorBase;
103   int major, minor, patch;
104
105   if (!XAppleDRIQueryExtension(dpy, &eventBase, &errorBase))
106      return true;
107
108   if (!XAppleDRIQueryVersion(dpy, &major, &minor, &patch))
109      return true;
110
111   if (initialized)
112      return false;
113
114   apple_glx_log_init();
115
116   apple_glx_log(ASL_LEVEL_INFO, "Initializing libGL.");
117
118   apple_cgl_init();
119   (void) apple_glx_get_client_id();
120
121   XAppleDRISetSurfaceNotifyHandler(surface_notify_handler);
122
123   /* This should really be per display. */
124   dri_event_base = eventBase;
125   initialized = true;
126
127   return false;
128}
129
130void
131apple_glx_swap_buffers(void *ptr)
132{
133   struct apple_glx_context *ac = ptr;
134
135   /* This may not be needed with CGLFlushDrawable: */
136   glFlush();
137   apple_cgl.flush_drawable(ac->context_obj);
138}
139
140void
141apple_glx_waitx(Display * dpy, void *ptr)
142{
143   struct apple_private_context *ac = ptr;
144
145   (void) ac;
146
147   glFlush();
148   glFinish();
149   XSync(dpy, False);
150}
151