gl2_basic.cpp revision b22f5b3bb356ac747e8cd6c2f1c4e6f4a8539eeb 
1/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <stdlib.h>
18#include <stdio.h>
19#include <time.h>
20#include <sched.h>
21#include <sys/resource.h>
22
23#include <EGL/egl.h>
24#include <GLES/gl.h>
25#include <GLES/glext.h>
26
27#include <utils/Timers.h>
28
29#include <ui/FramebufferNativeWindow.h>
30#include <ui/EGLUtils.h>
31
32using namespace android;
33
34static void printGLString(const char *name, GLenum s)
35{
36     const char *v = (const char *)glGetString(s);
37     if (v)
38         printf("GL %s = %s\n", name, v);
39     else
40         printf("GL %s = (null)\n", name);
41}
42
43int main(int argc, char** argv)
44{
45    EGLint s_configAttribs[] = {
46         EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
47         EGL_RED_SIZE,       5,
48         EGL_GREEN_SIZE,     6,
49         EGL_BLUE_SIZE,      5,
50         EGL_NONE
51     };
52
53     EGLint numConfigs = -1;
54     EGLint majorVersion;
55     EGLint minorVersion;
56     EGLConfig config;
57     EGLContext context;
58     EGLSurface surface;
59     EGLint w, h;
60
61     EGLDisplay dpy;
62
63     EGLNativeWindowType window = 0;
64     window = android_createDisplaySurface();
65
66     dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
67     eglInitialize(dpy, &majorVersion, &minorVersion);
68     EGLUtils::selectConfigForNativeWindow(dpy, s_configAttribs, window, &config);
69     surface = eglCreateWindowSurface(dpy, config, window, NULL);
70
71    EGLint gl2_0Attribs[] = {EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE};
72
73     context = eglCreateContext(dpy, config, NULL, gl2_0Attribs);
74     eglMakeCurrent(dpy, surface, surface, context);
75     eglQuerySurface(dpy, surface, EGL_WIDTH, &w);
76     eglQuerySurface(dpy, surface, EGL_HEIGHT, &h);
77     GLint dim = w<h ? w : h;
78
79     printGLString("Version", GL_VERSION);
80     printGLString("Vendor", GL_VENDOR);
81     printGLString("Renderer", GL_RENDERER);
82     printGLString("Extensions", GL_EXTENSIONS);
83
84     return 0;
85}
86