Android glxinfo

Под катом находятся исходники простой утилиты, выводящей информацию об OpenGL в Android 4.

Обратите внимание что код расчитан на компиляцию системой сборки Android (вам понадобятся исходники платформы чтобы собрать). Я не пробовал собирать с помощью NDK.

Например она выводит следуюущую информацию, если запущена на PandaBoard Rev.B ES:

EGL version 1.4
EGL_VERSION = 1.4 Android META-EGL
EGL_VENDOR = Android
EGL_EXTENSIONS = EGL_KHR_image EGL_KHR_image_base EGL_KHR_image_base 
EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image 
EGL_KHR_fence_sync EGL_ANDROID_image_native_buffer EGL_ANDROID_image_native_buffer
EGL_CLIENT_APIS = OpenGL ES

На эмуляторе Android 4.0:

EGL version 1.4
EGL_VERSION = 1.4 Android META-EGL
EGL_VENDOR = Android
EGL_EXTENSIONS = EGL_KHR_image EGL_KHR_image_base EGL_KHR_image_pixmap 
EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image 
EGL_KHR_fence_sync EGL_ANDROID_image_native_buffer EGL_ANDROID_swap_rectangle 
EGL_NV_system_time
EGL_CLIENT_APIS = OpenGL ES

Android.mk:

LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)

LOCAL_SHARED_LIBRARIES := \
  libcutils \
  libutils \
  libEGL \
  libGLESv2

LOCAL_C_INCLUDES += \
  frameworks/base/opengl/include/GLES2

LOCAL_SRC_FILES:= hellogl.c
LOCAL_MODULE := hellogl
LOCAL_MODULE_TAGS := eng
include $(BUILD_EXECUTABLE)

hellogl.c:

// vim: ts=4:sw=4
#include <stdio.h>
#include <EGL/egl.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>

static void checkEglError(const char* op, EGLBoolean returnVal) {
    EGLint error;

    if (returnVal != EGL_TRUE) {
        fprintf(stderr, "%s() returned %d\n", op, returnVal);
    }

    for (error = eglGetError(); error != EGL_SUCCESS; error
            = eglGetError()) {
        fprintf(stderr, "after %s() eglError %s (0x%x)\n", op, 
               "<TBD>"/*EGLUtils::strerror(error)*/, error);
    }
}

int main()
{
    const char * s;
    EGLBoolean returnValue;
    EGLConfig myConfig = {0};

    EGLint context_attribs[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
    EGLint s_configAttribs[] = {
            EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
            EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
            EGL_NONE };
    EGLint majorVersion;
    EGLint minorVersion;
    EGLContext context;
    EGLSurface surface;
    EGLint w, h;

    EGLDisplay egl_dpy;

    checkEglError("<init>", EGL_TRUE);
    egl_dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
    checkEglError("eglGetDisplay", EGL_TRUE);
    if (egl_dpy == EGL_NO_DISPLAY) {
        printf("eglGetDisplay returned EGL_NO_DISPLAY.\n");
        return 0;
    }

    returnValue = eglInitialize(egl_dpy, &majorVersion, &minorVersion);
    checkEglError("eglInitialize", returnValue);
    fprintf(stderr, "EGL version %d.%d\n", majorVersion, minorVersion);
    if (returnValue != EGL_TRUE) {
        printf("eglInitialize failed\n");
        return 0;
    }

    printf("HelloGL 0.001\n");

    s = eglQueryString(egl_dpy, EGL_VERSION);
    printf("EGL_VERSION = %s\n", s);

    s = eglQueryString(egl_dpy, EGL_VENDOR);
    printf("EGL_VENDOR = %s\n", s);

    s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
    printf("EGL_EXTENSIONS = %s\n", s);

    s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
    printf("EGL_CLIENT_APIS = %s\n", s);

    return 0;
}