/*

 * Copyright (c) 2016, NVIDIA CORPORATION.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and/or associated documentation files (the

 * "Materials"), to deal in the Materials without restriction, including

 * without limitation the rights to use, copy, modify, merge, publish,

 * distribute, sublicense, and/or sell copies of the Materials, and to

 * permit persons to whom the Materials are furnished to do so, subject to

 * the following conditions:

 *

 * The above copyright notice and this permission notice shall be included

 * unaltered in all copies or substantial portions of the Materials.

 * Any additions, deletions, or changes to the original source files

 * must be clearly indicated in accompanying documentation.

 *

 * If only executable code is distributed, then the accompanying

 * documentation must state that "this software is based in part on the

 * work of the Khronos Group."

 *

 * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY

 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

 * MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.

 */

#include <EGL/egl.h>

#include <EGL/eglext.h>

#include <GL/gl.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include "dummy/EGL_dummy.h"

#include "egl_test_utils.h"

int checkError(EGLint expectedError);

int main(int argc, char **argv)

{

    EGLDisplay dpy;

    static const EGLint ERROR_ATTRIBS[] = {

        EGL_CREATE_CONTEXT_FAIL, EGL_BAD_MATCH,

        EGL_NONE

    };

    loadEGLExtensions();

    // Make sure the last error starts out as EGL_SUCCESS.

    printf("Checking initial state.\n");

    checkError(EGL_SUCCESS);

    dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);

    checkError(EGL_SUCCESS);

    // Test a function call where libEGL.so will set an error on its own.

    printf("Checking error in libEGL\n");

    eglGetCurrentSurface(EGL_NONE);

    checkError(EGL_BAD_PARAMETER);

    // Test an error set through a dispatch stub in libEGL.so.

    printf("Testing eglCreateContext with invalid display\n");

    eglCreateContext(EGL_NO_DISPLAY, NULL, EGL_NO_CONTEXT, NULL);

    checkError(EGL_BAD_DISPLAY);

    // Test a dispatch stub, with the error set in the vendor library. Note

    // that this case should be identical for a vendor-provided dispatch

    // function or one from libEGL.so.

    printf("Testing eglCreateContext, vendor error\n");

    eglCreateContext(dpy, NULL, EGL_NO_CONTEXT, ERROR_ATTRIBS);

    checkError(EGL_BAD_MATCH);

    // Test an error set through a vendor-provided dispatch stub. This is

    // different from the eglCreateContext error because the vendor-provided

    // stub has to set the error through the setEGLError callback.

    printf("Testing eglTestDispatchDisplay with invalid display\n");

    ptr_eglTestDispatchDisplay(EGL_NO_DISPLAY, DUMMY_COMMAND_GET_VENDOR_NAME, 0);

    checkError(EGL_BAD_DISPLAY);

    // Same, but with a valid display.

    printf("Testing eglTestDispatchDisplay with valid display\n");

    ptr_eglTestDispatchDisplay(dpy, DUMMY_COMMAND_GET_VENDOR_NAME, 0);

    checkError(EGL_SUCCESS);

    return 0;

}

int checkError(EGLint expectedError)

{

    EGLint error = eglGetError();

    if (error != expectedError) {

        printf("Got wrong error: Expected 0x%04x, got 0x%04x\n", expectedError, error);

        exit(1);

    }

    // Calling eglGetError should also clear the last error, so make sure the

    // next call returns EGL_SUCCESS.

    error = eglGetError();

    if (error != EGL_SUCCESS) {

        printf("Got wrong error: Expected 0x%04x, got EGL_SUCCESS\n", expectedError);

        exit(1);

    }

    return 0;

}