xref: /OK3568_Linux_fs/external/xserver/glamor/glamor_glx.c (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun  * Copyright © 2013 Intel Corporation
3*4882a593Smuzhiyun  *
4*4882a593Smuzhiyun  * Permission is hereby granted, free of charge, to any person obtaining a
5*4882a593Smuzhiyun  * copy of this software and associated documentation files (the "Software"),
6*4882a593Smuzhiyun  * to deal in the Software without restriction, including without limitation
7*4882a593Smuzhiyun  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8*4882a593Smuzhiyun  * and/or sell copies of the Software, and to permit persons to whom the
9*4882a593Smuzhiyun  * Software is furnished to do so, subject to the following conditions:
10*4882a593Smuzhiyun  *
11*4882a593Smuzhiyun  * The above copyright notice and this permission notice (including the next
12*4882a593Smuzhiyun  * paragraph) shall be included in all copies or substantial portions of the
13*4882a593Smuzhiyun  * Software.
14*4882a593Smuzhiyun  *
15*4882a593Smuzhiyun  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16*4882a593Smuzhiyun  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17*4882a593Smuzhiyun  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18*4882a593Smuzhiyun  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19*4882a593Smuzhiyun  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20*4882a593Smuzhiyun  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21*4882a593Smuzhiyun  * IN THE SOFTWARE.
22*4882a593Smuzhiyun  */
23*4882a593Smuzhiyun 
24*4882a593Smuzhiyun #include "dix-config.h"
25*4882a593Smuzhiyun 
26*4882a593Smuzhiyun #ifdef GLXEXT
27*4882a593Smuzhiyun 
28*4882a593Smuzhiyun #include <epoxy/glx.h>
29*4882a593Smuzhiyun #include "glamor_context.h"
30*4882a593Smuzhiyun 
31*4882a593Smuzhiyun /**
32*4882a593Smuzhiyun  * @file glamor_glx.c
33*4882a593Smuzhiyun  *
34*4882a593Smuzhiyun  * GLX context management for glamor.
35*4882a593Smuzhiyun  *
36*4882a593Smuzhiyun  * This has to be kept separate from the server sources because of
37*4882a593Smuzhiyun  * Xlib's conflicting definition of CARD32 and similar typedefs.
38*4882a593Smuzhiyun  */
39*4882a593Smuzhiyun 
40*4882a593Smuzhiyun static void
glamor_glx_make_current(struct glamor_context * glamor_ctx)41*4882a593Smuzhiyun glamor_glx_make_current(struct glamor_context *glamor_ctx)
42*4882a593Smuzhiyun {
43*4882a593Smuzhiyun     /* There's only a single global dispatch table in Mesa.  EGL, GLX,
44*4882a593Smuzhiyun      * and AIGLX's direct dispatch table manipulation don't talk to
45*4882a593Smuzhiyun      * each other.  We need to set the context to NULL first to avoid
46*4882a593Smuzhiyun      * GLX's no-op context change fast path when switching back to
47*4882a593Smuzhiyun      * GLX.
48*4882a593Smuzhiyun      */
49*4882a593Smuzhiyun     glXMakeCurrent(glamor_ctx->display, None, None);
50*4882a593Smuzhiyun 
51*4882a593Smuzhiyun     glXMakeCurrent(glamor_ctx->display, glamor_ctx->drawable_xid,
52*4882a593Smuzhiyun                    glamor_ctx->ctx);
53*4882a593Smuzhiyun }
54*4882a593Smuzhiyun 
55*4882a593Smuzhiyun 
56*4882a593Smuzhiyun Bool
glamor_glx_screen_init(struct glamor_context * glamor_ctx)57*4882a593Smuzhiyun glamor_glx_screen_init(struct glamor_context *glamor_ctx)
58*4882a593Smuzhiyun {
59*4882a593Smuzhiyun     glamor_ctx->ctx = glXGetCurrentContext();
60*4882a593Smuzhiyun     if (!glamor_ctx->ctx)
61*4882a593Smuzhiyun         return False;
62*4882a593Smuzhiyun 
63*4882a593Smuzhiyun     glamor_ctx->display = glXGetCurrentDisplay();
64*4882a593Smuzhiyun     if (!glamor_ctx->display)
65*4882a593Smuzhiyun         return False;
66*4882a593Smuzhiyun 
67*4882a593Smuzhiyun     glamor_ctx->drawable_xid = glXGetCurrentDrawable();
68*4882a593Smuzhiyun 
69*4882a593Smuzhiyun     glamor_ctx->make_current = glamor_glx_make_current;
70*4882a593Smuzhiyun 
71*4882a593Smuzhiyun     return True;
72*4882a593Smuzhiyun }
73*4882a593Smuzhiyun 
74*4882a593Smuzhiyun #endif // GLXEXT
75