src/glx/apple/apple_glx.c

   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 const GLuint __glXDefaultPixelStore[9] = { 0, 0, 0, 0, 0, 0, 0, 0, 1 };
  47
  48 int
  49 apple_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
  59 static void
  60 surface_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
  83 xp_client_id
  84 apple_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. */
  99 bool
 100 apple_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
 130 void
 131 apple_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
 140 void
 141 apple_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 }