1 /*
2 * Copyright © 2013 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 #include "dix-config.h"
25
26 #ifdef GLXEXT
27
28 #include <epoxy/glx.h>
29 #include "glamor_context.h"
30
31 /**
32 * @file glamor_glx.c
33 *
34 * GLX context management for glamor.
35 *
36 * This has to be kept separate from the server sources because of
37 * Xlib's conflicting definition of CARD32 and similar typedefs.
38 */
39
40 static void
glamor_glx_make_current(struct glamor_context * glamor_ctx)41 glamor_glx_make_current(struct glamor_context *glamor_ctx)
42 {
43 /* There's only a single global dispatch table in Mesa. EGL, GLX,
44 * and AIGLX's direct dispatch table manipulation don't talk to
45 * each other. We need to set the context to NULL first to avoid
46 * GLX's no-op context change fast path when switching back to
47 * GLX.
48 */
49 glXMakeCurrent(glamor_ctx->display, None, None);
50
51 glXMakeCurrent(glamor_ctx->display, glamor_ctx->drawable_xid,
52 glamor_ctx->ctx);
53 }
54
55
56 Bool
glamor_glx_screen_init(struct glamor_context * glamor_ctx)57 glamor_glx_screen_init(struct glamor_context *glamor_ctx)
58 {
59 glamor_ctx->ctx = glXGetCurrentContext();
60 if (!glamor_ctx->ctx)
61 return False;
62
63 glamor_ctx->display = glXGetCurrentDisplay();
64 if (!glamor_ctx->display)
65 return False;
66
67 glamor_ctx->drawable_xid = glXGetCurrentDrawable();
68
69 glamor_ctx->make_current = glamor_glx_make_current;
70
71 return True;
72 }
73
74 #endif // GLXEXT
75