1 /*
2 * Copyright © 2014 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 egl_gl.c
26 *
27 * Tests that epoxy works with EGL using desktop OpenGL.
28 */
29
30 #define _GNU_SOURCE
31
32 #include <stdio.h>
33 #include <string.h>
34 #include <stdlib.h>
35 #include <assert.h>
36 #include <err.h>
37 #include <dlfcn.h>
38 #include "epoxy/gl.h"
39 #include "epoxy/egl.h"
40 #include "epoxy/glx.h"
41
42 #include "egl_common.h"
43 #include "glx_common.h"
44 #include "dlwrap.h"
45
46 static bool
make_egl_current_and_test(EGLDisplay * dpy,EGLContext ctx)47 make_egl_current_and_test(EGLDisplay *dpy, EGLContext ctx)
48 {
49 const char *string;
50 GLuint shader;
51 bool pass = true;
52
53 eglMakeCurrent(dpy, NULL, NULL, ctx);
54
55 if (!epoxy_is_desktop_gl()) {
56 fputs("Claimed to be desktop\n", stderr);
57 pass = false;
58 }
59
60 if (epoxy_gl_version() < 20) {
61 fprintf(stderr, "Claimed to be GL version %d\n",
62 epoxy_gl_version());
63 pass = false;
64 }
65
66 string = (const char *)glGetString(GL_VERSION);
67 printf("GL version: %s\n", string);
68
69 shader = glCreateShader(GL_FRAGMENT_SHADER);
70 pass = glIsShader(shader);
71
72 return pass;
73 }
74
75 static void
init_egl(EGLDisplay ** out_dpy,EGLContext * out_ctx)76 init_egl(EGLDisplay **out_dpy, EGLContext *out_ctx)
77 {
78 EGLDisplay *dpy = get_egl_display_or_skip();
79 static const EGLint config_attribs[] = {
80 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
81 EGL_RED_SIZE, 1,
82 EGL_GREEN_SIZE, 1,
83 EGL_BLUE_SIZE, 1,
84 EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
85 EGL_NONE
86 };
87 static const EGLint context_attribs[] = {
88 EGL_CONTEXT_CLIENT_VERSION, 2,
89 EGL_NONE
90 };
91 EGLContext ctx;
92 EGLConfig cfg;
93 EGLint count;
94
95 if (!epoxy_has_egl_extension(dpy, "EGL_KHR_surfaceless_context"))
96 errx(77, "Test requires EGL_KHR_surfaceless_context");
97
98 if (!eglBindAPI(EGL_OPENGL_API))
99 errx(77, "Couldn't initialize EGL with desktop GL\n");
100
101 if (!eglChooseConfig(dpy, config_attribs, &cfg, 1, &count))
102 errx(77, "Couldn't get an EGLConfig\n");
103
104 ctx = eglCreateContext(dpy, cfg, NULL, context_attribs);
105 if (!ctx)
106 errx(77, "Couldn't create a GL context\n");
107
108 *out_dpy = dpy;
109 *out_ctx = ctx;
110 }
111
112 int
main(int argc,char ** argv)113 main(int argc, char **argv)
114 {
115 bool pass = true;
116 EGLDisplay *egl_dpy;
117 EGLContext egl_ctx;
118
119 /* Force epoxy to have loaded both EGL and GLX libs already -- we
120 * can't assume anything about symbol resolution based on having
121 * EGL or GLX loaded.
122 */
123 (void)glXGetCurrentContext();
124 (void)eglGetCurrentContext();
125
126 init_egl(&egl_dpy, &egl_ctx);
127 pass = make_egl_current_and_test(egl_dpy, egl_ctx) && pass;
128
129 return pass != true;
130 }
131