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
applegl_destroy_context(struct glx_context * gc)46 applegl_destroy_context(struct glx_context *gc)
47 {
48 apple_glx_destroy_context(&gc->driContext, gc->psc->dpy);
49 }
50
51 static int
applegl_bind_context(struct glx_context * gc,struct glx_context * old,GLXDrawable draw,GLXDrawable read)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
applegl_unbind_context(struct glx_context * gc,struct glx_context * new)70 applegl_unbind_context(struct glx_context *gc, struct glx_context *new)
71 {
72 Display *dpy;
73 bool error;
74
75 /* If we don't have a context, then we have nothing to unbind */
76 if (!gc)
77 return;
78
79 /* If we have a new context, keep this one around and remove it during bind. */
80 if (new)
81 return;
82
83 dpy = gc->psc->dpy;
84
85 error = apple_glx_make_current_context(dpy,
86 (gc != &dummyContext) ? gc->driContext : NULL,
87 NULL, None);
88
89 apple_glx_diagnostic("%s: error %s\n", __func__, error ? "YES" : "NO");
90 }
91
92 static void
applegl_wait_gl(struct glx_context * gc)93 applegl_wait_gl(struct glx_context *gc)
94 {
95 glFinish();
96 }
97
98 static void
applegl_wait_x(struct glx_context * gc)99 applegl_wait_x(struct glx_context *gc)
100 {
101 Display *dpy = gc->psc->dpy;
102 apple_glx_waitx(dpy, gc->driContext);
103 }
104
105 static void *
applegl_get_proc_address(const char * symbol)106 applegl_get_proc_address(const char *symbol)
107 {
108 return dlsym(apple_cgl_get_dl_handle(), symbol);
109 }
110
111 static const struct glx_context_vtable applegl_context_vtable = {
112 applegl_destroy_context,
113 applegl_bind_context,
114 applegl_unbind_context,
115 applegl_wait_gl,
116 applegl_wait_x,
117 DRI_glXUseXFont,
118 NULL, /* bind_tex_image, */
119 NULL, /* release_tex_image, */
120 applegl_get_proc_address,
121 };
122
123 struct glx_context *
applegl_create_context(struct glx_screen * psc,struct glx_config * config,struct glx_context * shareList,int renderType)124 applegl_create_context(struct glx_screen *psc,
125 struct glx_config *config,
126 struct glx_context *shareList, int renderType)
127 {
128 struct glx_context *gc;
129 int errorcode;
130 bool x11error;
131 Display *dpy = psc->dpy;
132 int screen = psc->scr;
133
134 /* TODO: Integrate this with apple_glx_create_context and make
135 * struct apple_glx_context inherit from struct glx_context. */
136
137 gc = Xcalloc(1, sizeof (*gc));
138 if (gc == NULL)
139 return NULL;
140
141 if (!glx_context_init(gc, psc, config)) {
142 Xfree(gc);
143 return NULL;
144 }
145
146 gc->vtable = &applegl_context_vtable;
147 gc->driContext = NULL;
148
149 /* TODO: darwin: Integrate with above to do indirect */
150 if(apple_glx_create_context(&gc->driContext, dpy, screen, config,
151 shareList ? shareList->driContext : NULL,
152 &errorcode, &x11error)) {
153 __glXSendError(dpy, errorcode, 0, X_GLXCreateContext, x11error);
154 gc->vtable->destroy(gc);
155 return NULL;
156 }
157
158 gc->currentContextTag = -1;
159 gc->config = config;
160 gc->isDirect = GL_TRUE;
161 gc->xid = 1; /* Just something not None, so we know when to destroy
162 * it in MakeContextCurrent. */
163
164 return gc;
165 }
166
167 struct glx_screen_vtable applegl_screen_vtable = {
168 applegl_create_context
169 };
170
171 _X_HIDDEN struct glx_screen *
applegl_create_screen(int screen,struct glx_display * priv)172 applegl_create_screen(int screen, struct glx_display * priv)
173 {
174 struct glx_screen *psc;
175
176 psc = Xmalloc(sizeof *psc);
177 if (psc == NULL)
178 return NULL;
179
180 memset(psc, 0, sizeof *psc);
181 glx_screen_init(psc, screen, priv);
182 psc->vtable = &applegl_screen_vtable;
183
184 return psc;
185 }
186
187 _X_HIDDEN int
applegl_create_display(struct glx_display * glx_dpy)188 applegl_create_display(struct glx_display *glx_dpy)
189 {
190 if(!apple_init_glx(glx_dpy->dpy))
191 return 1;
192
193 return GLXBadContext;
194 }
195
196 #endif
197