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/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <sched.h>
#include <sys/resource.h>
#include <EGL/egl.h>
#include <GLES/gl.h>
#include <GLES/glext.h>
#include <utils/Timers.h>
#include <ui/FramebufferNativeWindow.h>
#include <ui/EGLUtils.h>
using namespace android;
static void printGLString(const char *name, GLenum s)
{
fprintf(stderr, "printGLString %s, %d\n", name, s);
const char *v = (const char *)glGetString(s);
int error = glGetError();
fprintf(stderr, "glGetError() = %d, result of glGetString = %x\n", error,
(unsigned int)v);
if ((v < (const char*) 0) || (v > (const char*) 0x1000))
fprintf(stderr, "GL %s = %s\n", name, v);
else
fprintf(stderr, "GL %s = (null)\n", name);
}
static const char* eglErrorToString[] = {
"EGL_SUCCESS", // 0x3000 12288
"EGL_NOT_INITIALIZED",
"EGL_BAD_ACCESS", // 0x3002 12290
"EGL_BAD_ALLOC",
"EGL_BAD_ATTRIBUTE",
"EGL_BAD_CONFIG",
"EGL_BAD_CONTEXT", // 0x3006 12294
"EGL_BAD_CURRENT_SURFACE",
"EGL_BAD_DISPLAY",
"EGL_BAD_MATCH",
"EGL_BAD_NATIVE_PIXMAP",
"EGL_BAD_NATIVE_WINDOW",
"EGL_BAD_PARAMETER", // 0x300c 12300
"EGL_BAD_SURFACE"
};
static void checkEglError(const char* op) {
for(EGLint error = eglGetError();
error != EGL_SUCCESS;
error = eglGetError()) {
const char* errorString = "unknown";
if (error >= EGL_SUCCESS && error <= EGL_BAD_SURFACE) {
errorString = eglErrorToString[error - EGL_SUCCESS];
}
fprintf(stderr, "%s() returned eglError %s (0x%x)\n", op,
errorString, error);
}
}
int main(int argc, char** argv)
{
EGLint s_configAttribs[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_RED_SIZE, 5,
EGL_GREEN_SIZE, 6,
EGL_BLUE_SIZE, 5,
EGL_NONE
};
EGLint numConfigs = -1;
EGLint majorVersion;
EGLint minorVersion;
EGLConfig config;
EGLContext context;
EGLSurface surface;
EGLint w, h;
EGLDisplay dpy;
EGLNativeWindowType window = 0;
window = android_createDisplaySurface();
checkEglError("<init>");
dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
checkEglError("eglGetDisplay");
eglInitialize(dpy, &majorVersion, &minorVersion);
checkEglError("eglInitialize");
fprintf(stderr, "EGL version %d.%d\n", majorVersion, minorVersion);
EGLUtils::selectConfigForNativeWindow(dpy, s_configAttribs, window, &config);
fprintf(stderr, "Chosen config: 0x%08x\n", (unsigned long) config);
checkEglError("EGLUtils::selectConfigForNativeWindow");
surface = eglCreateWindowSurface(dpy, config, window, NULL);
checkEglError("eglCreateWindowSurface");
EGLint gl2_0Attribs[] = {EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE};
context = eglCreateContext(dpy, config, NULL, gl2_0Attribs);
checkEglError("eglCreateContext");
eglMakeCurrent(dpy, surface, surface, context);
checkEglError("eglMakeCurrent");
eglQuerySurface(dpy, surface, EGL_WIDTH, &w);
checkEglError("eglQuerySurface");
eglQuerySurface(dpy, surface, EGL_HEIGHT, &h);
checkEglError("eglQuerySurface");
GLint dim = w<h ? w : h;
fprintf(stderr, "Window dimensions: %d x %d\n", w, h);
printGLString("Version", GL_VERSION);
printGLString("Vendor", GL_VENDOR);
printGLString("Renderer", GL_RENDERER);
printGLString("Extensions", GL_EXTENSIONS);
return 0;
}
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