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/**
25 * @file glx_gles2.c
26 *
27 * Catches a bug where a GLES2 context using
28 * GLX_EXT_create_context_es2_profile would try to find the symbols in
29 * libGLESv2.so.2 instead of libGL.so.1.
30 */
31
32#include <stdio.h>
33#include <assert.h>
34#include <err.h>
35#include "epoxy/gl.h"
36#include "epoxy/glx.h"
37#include <X11/Xlib.h>
38
39#include "glx_common.h"
40
41static Display *dpy;
42
43GLuint
44override_GLES2_glCreateShader(GLenum target);
45
46GLuint
47override_GLES2_glCreateShader(GLenum target)
48{
49 return 0;
50}
51
52void
53override_GLES2_glGenQueries(GLsizei n, GLuint *ids);
54
55void
56override_GLES2_glGenQueries(GLsizei n, GLuint *ids)
57{
58 int i;
59 for (i = 0; i < n; i++)
60 ids[i] = 0;
61}
62
63int
64main(int argc, char **argv)
65{
66 bool pass = true;
67 XVisualInfo *vis;
68 Window win;
69 GLXContext ctx;
70 GLXFBConfig config;
71 int context_attribs[] = {
72 GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_ES2_PROFILE_BIT_EXT,
73 GLX_CONTEXT_MAJOR_VERSION_ARB, 2,
74 GLX_CONTEXT_MINOR_VERSION_ARB, 0,
75 0
76 };
77 GLuint shader;
78
79 dpy = get_display_or_skip();
80
81 if (!epoxy_has_glx_extension(dpy, screen: 0, extension: "GLX_EXT_create_context_es2_profile"))
82 errx(status: 77, format: "Test requires GLX_EXT_create_context_es2_profile");
83
84 vis = get_glx_visual(dpy);
85 config = get_fbconfig_for_visinfo(dpy, visinfo: vis);
86 win = get_glx_window(dpy, visinfo: vis, false);
87
88 ctx = glXCreateContextAttribsARB(dpy, config, NULL, true,
89 context_attribs);
90
91 glXMakeCurrent(dpy, win, ctx);
92
93 if (epoxy_is_desktop_gl()) {
94 errx(status: 1, format: "GLES2 context creation made a desktop context\n");
95 }
96
97 if (epoxy_gl_version() < 20) {
98 errx(status: 1, format: "GLES2 context creation made a version %f context\n",
99 epoxy_gl_version() / 10.0f);
100 }
101
102 /* Test using an entrypoint that's in GLES2, but not the desktop GL ABI. */
103 shader = glCreateShader(GL_FRAGMENT_SHADER);
104 if (shader == 0)
105 errx(status: 1, format: "glCreateShader() failed\n");
106 glDeleteShader(shader);
107
108 if (epoxy_gl_version() >= 30) {
109 GLuint q = 0;
110
111 glGenQueries(1, &q);
112 if (!q)
113 errx(status: 1, format: "glGenQueries() failed\n");
114 glDeleteQueries(1, &q);
115 }
116
117 return pass != true;
118}
119

source code of gtk/subprojects/libepoxy/test/glx_gles2.c