src/glx/applegl_glx.c

   1 /*
   2  * Copyright © 2010 Intel Corporation
   3  * Copyright © 2011 Apple Inc.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Soft-
   7  * ware"), to deal in the Software without restriction, including without
   8  * limitation the rights to use, copy, modify, merge, publish, distribute,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, provided that the above copyright
  11  * notice(s) and this permission notice appear in all copies of the Soft-
  12  * ware and that both the above copyright notice(s) and this permission
  13  * notice appear in supporting documentation.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
  17  * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY
  18  * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN
  19  * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE-
  20  * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  21  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  22  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR-
  23  * MANCE OF THIS SOFTWARE.
  24  *
  25  * Except as contained in this notice, the name of a copyright holder shall
  26  * not be used in advertising or otherwise to promote the sale, use or
  27  * other dealings in this Software without prior written authorization of
  28  * the copyright holder.
  29  *
  30  * Authors:
  31  *   Kristian Høgsberg (krh@bitplanet.net)
  32  */
  33
  34 #if defined(GLX_USE_APPLEGL)
  35
  36 #include <stdbool.h>
  37 #include <dlfcn.h>
  38
  39 #include "glxclient.h"
  40 #include "apple_glx_context.h"
  41 #include "apple_glx.h"
  42 #include "apple_cgl.h"
  43 #include "glx_error.h"
  44
  45 static void
  46 applegl_destroy_context(struct glx_context *gc)
  47 {
  48    apple_glx_destroy_context(&gc->driContext, gc->psc->dpy);
  49 }
  50
  51 static int
  52 applegl_bind_context(struct glx_context *gc, struct glx_context *old,
  53                      GLXDrawable draw, GLXDrawable read)
  54 {
  55    Display *dpy = gc->psc->dpy;
  56    bool error = apple_glx_make_current_context(dpy,
  57                                                (old && old != &dummyContext) ? old->driContext : NULL,
  58                                                gc ? gc->driContext : NULL, draw);
  59
  60    apple_glx_diagnostic("%s: error %s\n", __func__, error ? "YES" : "NO");
  61    if (error)
  62       return 1; /* GLXBadContext is the same as Success (0) */
  63
  64    apple_glapi_set_dispatch();
  65
  66    return Success;
  67 }
  68
  69 static void
  70 applegl_unbind_context(struct glx_context *gc, struct glx_context *new)
  71 {
  72 }
  73
  74 static void
  75 applegl_wait_gl(struct glx_context *gc)
  76 {
  77    glFinish();
  78 }
  79
  80 static void
  81 applegl_wait_x(struct glx_context *gc)
  82 {
  83    Display *dpy = gc->psc->dpy;
  84    apple_glx_waitx(dpy, gc->driContext);
  85 }
  86
  87 static void *
  88 applegl_get_proc_address(const char *symbol)
  89 {
  90    return dlsym(apple_cgl_get_dl_handle(), symbol);
  91 }
  92
  93 static const struct glx_context_vtable applegl_context_vtable = {
  94    applegl_destroy_context,
  95    applegl_bind_context,
  96    applegl_unbind_context,
  97    applegl_wait_gl,
  98    applegl_wait_x,
  99    DRI_glXUseXFont,
 100    NULL, /* bind_tex_image, */
 101    NULL, /* release_tex_image, */
 102    applegl_get_proc_address,
 103 };
 104
 105 struct glx_context *
 106 applegl_create_context(struct glx_screen *psc,
 107                        struct glx_config *config,
 108                        struct glx_context *shareList, int renderType)
 109 {
 110    struct glx_context *gc;
 111    int errorcode;
 112    bool x11error;
 113    Display *dpy = psc->dpy;
 114    int screen = psc->scr;
 115
 116    /* TODO: Integrate this with apple_glx_create_context and make
 117     * struct apple_glx_context inherit from struct glx_context. */
 118
 119    gc = Xcalloc(1, sizeof (*gc));
 120    if (gc == NULL)
 121       return NULL;
 122
 123    if (!glx_context_init(gc, psc, config)) {
 124       Xfree(gc);
 125       return NULL;
 126    }
 127
 128    gc->vtable = &applegl_context_vtable;
 129    gc->driContext = NULL;
 130
 131    /* TODO: darwin: Integrate with above to do indirect */
 132    if(apple_glx_create_context(&gc->driContext, dpy, screen, config,
 133                                shareList ? shareList->driContext : NULL,
 134                                &errorcode, &x11error)) {
 135       __glXSendError(dpy, errorcode, 0, X_GLXCreateContext, x11error);
 136       gc->vtable->destroy(gc);
 137       return NULL;
 138    }
 139
 140    gc->currentContextTag = -1;
 141    gc->config = config;
 142    gc->isDirect = GL_TRUE;
 143    gc->xid = 1; /* Just something not None, so we know when to destroy
 144                  * it in MakeContextCurrent. */
 145
 146    return gc;
 147 }
 148
 149 struct glx_screen_vtable applegl_screen_vtable = {
 150    applegl_create_context
 151 };
 152
 153 _X_HIDDEN struct glx_screen *
 154 applegl_create_screen(int screen, struct glx_display * priv)
 155 {
 156    struct glx_screen *psc;
 157
 158    psc = Xmalloc(sizeof *psc);
 159    if (psc == NULL)
 160       return NULL;
 161
 162    memset(psc, 0, sizeof *psc);
 163    glx_screen_init(psc, screen, priv);
 164    psc->vtable = &applegl_screen_vtable;
 165
 166    return psc;
 167 }
 168
 169 _X_HIDDEN int
 170 applegl_create_display(struct glx_display *glx_dpy)
 171 {
 172    if(!apple_init_glx(glx_dpy->dpy))
 173       return 1;
 174
 175    return GLXBadContext;
 176 }
 177
 178 #endif