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 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 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 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 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 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 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