/**
 * Copyright (c) 2011, CESNET z.s.p.o
 * Copyright (c) 2011, Silicon Genome, LLC.
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
 
#ifndef GPUJPEG_UTIL_H
#define GPUJPEG_UTIL_H

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <assert.h>
#include <cuda_runtime.h>

// Timer
#define GPUJPEG_TIMER_INIT() \
    cudaEvent_t __start, __stop; \
    cudaEventCreate(&__start); \
    cudaEventCreate(&__stop); \
    float __elapsedTime;
#define GPUJPEG_TIMER_START() \
    cudaEventRecord(__start,0)
#define GPUJPEG_TIMER_STOP() \
    cudaEventRecord(__stop,0); \
    cudaEventSynchronize(__stop); \
    cudaEventElapsedTime(&__elapsedTime, __start, __stop)
#define GPUJPEG_TIMER_DURATION() __elapsedTime
#define GPUJPEG_TIMER_STOP_PRINT(text) \
    GPUJPEG_TIMER_STOP(); \
    printf("%s %f ms\n", text, __elapsedTime)
	
// CUDA check error
#define gpujpeg_cuda_check_error(msg) \
    { \
        cudaError_t err = cudaGetLastError(); \
        if( cudaSuccess != err) { \
            fprintf(stderr, "[GPUJPEG] [Error] %s (line %i): %s: %s.\n", \
                __FILE__, __LINE__, msg, cudaGetErrorString( err) ); \
            exit(-1); \
        } \
    } \
    
// Divide and round up
#define gpujpeg_div_and_round_up(value, div) \
    (((value % div) != 0) ? (value / div + 1) : (value / div))

// CUDA C++ extension for Eclipse CDT
#ifdef __CDT_PARSER__
struct { int x; int y; int z; } threadIdx;
struct { int x; int y; int z; } blockIdx;
struct { int x; int y; int z; } blockDim;
struct { int x; int y; int z; } gridDim;
#endif

#endif // GPUJPEG_UTIL_H
