/*-------------------------------------------------------------------------
 * drawElements Base Portability Library
 * -------------------------------------
 *
 * Copyright 2014 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.
 *
 *//*!
 * \file
 * \brief Basic portability.
 *//*--------------------------------------------------------------------*/

#include "deDefs.h"
#include "deInt32.h"

/* Assert base type sizes. */
DE_STATIC_ASSERT(sizeof(deUint8)	== 1);
DE_STATIC_ASSERT(sizeof(deUint16)	== 2);
DE_STATIC_ASSERT(sizeof(deUint32)	== 4);
DE_STATIC_ASSERT(sizeof(deUint64)	== 8);
DE_STATIC_ASSERT(sizeof(deInt8)		== 1);
DE_STATIC_ASSERT(sizeof(deInt16)	== 2);
DE_STATIC_ASSERT(sizeof(deInt32)	== 4);
DE_STATIC_ASSERT(sizeof(deInt64)	== 8);
DE_STATIC_ASSERT(sizeof(deUintptr)	== sizeof(void*));
DE_STATIC_ASSERT(sizeof(deIntptr)	== sizeof(void*));
DE_STATIC_ASSERT(DE_PTR_SIZE		== sizeof(void*));

/* Sanity checks for DE_PTR_SIZE & DE_CPU */
#if !((DE_CPU == DE_CPU_X86_64 || DE_CPU == DE_CPU_ARM_64 || DE_CPU == DE_CPU_MIPS_64) && (DE_PTR_SIZE == 8)) && \
	!((DE_CPU == DE_CPU_X86    || DE_CPU == DE_CPU_ARM    || DE_CPU == DE_CPU_MIPS)    && (DE_PTR_SIZE == 4))
#	error "DE_CPU and DE_PTR_SIZE mismatch"
#endif

#if (DE_OS == DE_OS_UNIX) && defined(NDEBUG)
	/* We need __assert_fail declaration from assert.h */
#	undef NDEBUG
#endif

#include <stdio.h>
#include <assert.h>
#include <string.h>

#if (DE_OS == DE_OS_OSX) || (DE_OS == DE_OS_IOS)
#	include <signal.h>
#	include <stdlib.h>
#endif

#if (DE_OS == DE_OS_ANDROID)
#	include <android/log.h>
#endif

/*
#if (DE_OS == DE_OS_WIN32)
#	define WIN32_LEAN_AND_MEAN
#	include <windows.h>
#endif
*/

DE_BEGIN_EXTERN_C

#if defined(DE_ASSERT_FAILURE_CALLBACK)
static deAssertFailureCallbackFunc g_assertFailureCallback = DE_NULL;
#endif

void deSetAssertFailureCallback (deAssertFailureCallbackFunc callback)
{
#if defined(DE_ASSERT_FAILURE_CALLBACK)
	g_assertFailureCallback = callback;
#else
	DE_UNREF(callback);
#endif
}

void deAssertFail (const char* reason, const char* file, int line)
{
#if defined(DE_ASSERT_FAILURE_CALLBACK)
	if (g_assertFailureCallback != DE_NULL)
	{
		/* Remove callback in case of the callback causes further asserts. */
		deAssertFailureCallbackFunc callback = g_assertFailureCallback;
		deSetAssertFailureCallback(DE_NULL);
		callback(reason, file, line);
	}
#endif

#if (((DE_OS == DE_OS_WIN32) || (DE_OS == DE_OS_WINCE)) && (DE_COMPILER == DE_COMPILER_MSC))
	{
		wchar_t	wreason[1024];
		wchar_t	wfile[128];
		int		num;
		int		i;

	/*	MessageBox(reason, "Assertion failed", MB_OK); */

		num = deMin32((int)strlen(reason), DE_LENGTH_OF_ARRAY(wreason)-1);
		for (i = 0; i < num; i++)
			wreason[i] = reason[i];
		wreason[i] = 0;

		num = deMin32((int)strlen(file), DE_LENGTH_OF_ARRAY(wfile)-1);
		for (i = 0; i < num; i++)
			wfile[i] = file[i];
		wfile[i] = 0;

#	if (DE_OS == DE_OS_WIN32)
		_wassert(wreason, wfile, line);
#	else /* WINCE */
		assert(wreason);
#	endif
	}
#elif ((DE_OS == DE_OS_WIN32) && (DE_COMPILER == DE_COMPILER_CLANG))
	_assert(reason, file, line);
#elif (DE_OS == DE_OS_UNIX)
	__assert_fail(reason, file, line, "Unknown function");
#elif (DE_OS == DE_OS_SYMBIAN)
	__assert("Unknown function", file, line, reason);
#elif (DE_OS == DE_OS_OSX) || (DE_OS == DE_OS_IOS)
	fprintf(stderr, "Assertion '%s' failed at %s:%d\n", reason, file, line);
	raise(SIGTRAP);
	abort();
#elif (DE_OS == DE_OS_ANDROID)
	__android_log_print(ANDROID_LOG_ERROR, "delibs", "Assertion '%s' failed at %s:%d", reason, file, line);
	__assert(file, line, reason);
#else
#	error Implement assertion function on your platform.
#endif
}

DE_END_EXTERN_C