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 <epoxy/glx.h>
25#include "glamor_context.h"
26
27/**
28 * @file glamor_glx.c
29 *
30 * GLX context management for glamor.
31 *
32 * This has to be kept separate from the server sources because of
33 * Xlib's conflicting definition of CARD32 and similar typedefs.
34 */
35
36static void
37glamor_glx_make_current(struct glamor_context *glamor_ctx)
38{
39    /* There's only a single global dispatch table in Mesa.  EGL, GLX,
40     * and AIGLX's direct dispatch table manipulation don't talk to
41     * each other.  We need to set the context to NULL first to avoid
42     * GLX's no-op context change fast path when switching back to
43     * GLX.
44     */
45    glXMakeCurrent(glamor_ctx->display, None, None);
46
47    glXMakeCurrent(glamor_ctx->display, glamor_ctx->drawable_xid,
48                   glamor_ctx->ctx);
49}
50
51
52Bool
53glamor_glx_screen_init(struct glamor_context *glamor_ctx)
54{
55    glamor_ctx->ctx = glXGetCurrentContext();
56    if (!glamor_ctx->ctx)
57        return False;
58
59    glamor_ctx->display = glXGetCurrentDisplay();
60    if (!glamor_ctx->display)
61        return False;
62
63    glamor_ctx->drawable_xid = glXGetCurrentDrawable();
64
65    glamor_ctx->make_current = glamor_glx_make_current;
66
67    return True;
68}
69