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/*
* 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"
static __eglMustCastToProperFunctionPointerType checkEGLFunction(const char *name);
static void checkResult(const char *func, const char *result);
int main(int argc, char **argv)
{
typedef const char *(EGLAPIENTRY * pfn_eglQueryString) (EGLDisplay dpy, EGLint name);
typedef const GLubyte * (* pfn_glGetString) (GLenum name);
EGLDisplay dpy;
EGLContext ctx;
const char *result;
pfn_eglTestDispatchDisplay ptr_eglTestDispatchDisplay;
pfn_eglTestDispatchCurrent ptr_eglTestDispatchCurrent;
pfn_eglQueryString ptr_eglQueryString;
pfn_glGetString ptr_glGetString;
dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
ptr_eglQueryString = (pfn_eglQueryString)
checkEGLFunction("eglQueryString");
ptr_eglTestDispatchDisplay = (pfn_eglTestDispatchDisplay)
checkEGLFunction("eglTestDispatchDisplay");
ptr_eglTestDispatchCurrent = (pfn_eglTestDispatchCurrent)
checkEGLFunction("eglTestDispatchCurrent");
ptr_glGetString = (pfn_glGetString)
checkEGLFunction("glGetString");
// Try to load a non-existant EGL function. This should return NULL.
if (eglGetProcAddress("eglNonExistantFunction") != NULL) {
printf("Got a pointer to a non-existant EGL function.\n");
return 1;
}
// Test a built-in EGL function.
result = ptr_eglQueryString(dpy, EGL_VENDOR);
checkResult("eglQueryString", result);
// Test an EGL extension function with a vendor-provided dispatch stub.
result = ptr_eglTestDispatchDisplay(dpy, DUMMY_COMMAND_GET_VENDOR_NAME, 0);
checkResult("eglTestDispatchDisplay", result);
ctx = eglCreateContext(dpy, NULL, EGL_NO_CONTEXT, NULL);
if (ctx == EGL_NO_CONTEXT) {
printf("eglCreateContext failed\n");
return 1;
}
if (!eglMakeCurrent(dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, ctx)) {
printf("eglMakeCurrent failed\n");
return 1;
}
// Test a function that's supposed to dispatch based on the current
// context.
result = ptr_eglTestDispatchCurrent(DUMMY_COMMAND_GET_VENDOR_NAME, 0);
checkResult("eglTestDispatchCurrent", result);
result = (const char *) ptr_glGetString(GL_VENDOR);
checkResult("glGetString", result);
eglMakeCurrent(EGL_NO_DISPLAY, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglDestroyContext(dpy, ctx);
return 0;
}
static void checkResult(const char *func, const char *result)
{
if (result == NULL) {
printf("%s returned NULL\n", func);
exit(1);
}
if (strcmp(result, DUMMY_VENDOR_NAMES[0]) != 0) {
printf("%s returned \"%s\", expected \"%s\"\n",
func, result, DUMMY_VENDOR_NAMES[0]);
exit(1);
}
}
static __eglMustCastToProperFunctionPointerType checkEGLFunction(const char *name)
{
__eglMustCastToProperFunctionPointerType func, func2;
func = eglGetProcAddress(name);
if (func == NULL) {
printf("Can't find function \"%s\"\n", name);
exit(1);
}
// Call eglGetProcAddress again to make sure we get the same pointer.
func2 = eglGetProcAddress(name);
if (func2 != func) {
printf("Got different address for \"%s\"\n", name);
exit(1);
}
return func;
}
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