/***********************************************************************
Copyright (c) 2006-2011, Skype Limited. 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.
- Neither the name of Internet Society, IETF or IETF Trust, nor the
names of specific contributors, may be used to endorse or promote
products derived from this software without specific prior written
permission.
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 OWNER 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.
***********************************************************************/

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

typedef int prevent_empty_translation_unit_warning;

#include "debug.h"

#if SILK_DEBUG || SILK_TIC_TOC
#include "SigProc_FIX.h"
#endif

#if SILK_TIC_TOC

#if (defined(_WIN32) || defined(_WINCE))
#include <windows.h>    /* timer */
#else   /* Linux or Mac*/
#include <sys/time.h>
#endif

#ifdef _WIN32
unsigned long silk_GetHighResolutionTime(void) /* O  time in usec*/
{
    /* Returns a time counter in microsec   */
    /* the resolution is platform dependent */
    /* but is typically 1.62 us resolution  */
    LARGE_INTEGER lpPerformanceCount;
    LARGE_INTEGER lpFrequency;
    QueryPerformanceCounter(&lpPerformanceCount);
    QueryPerformanceFrequency(&lpFrequency);
    return (unsigned long)((1000000*(lpPerformanceCount.QuadPart)) / lpFrequency.QuadPart);
}
#else   /* Linux or Mac*/
unsigned long GetHighResolutionTime(void) /* O  time in usec*/
{
    struct timeval tv;
    gettimeofday(&tv, 0);
    return((tv.tv_sec*1000000)+(tv.tv_usec));
}
#endif

int           silk_Timer_nTimers = 0;
int           silk_Timer_depth_ctr = 0;
char          silk_Timer_tags[silk_NUM_TIMERS_MAX][silk_NUM_TIMERS_MAX_TAG_LEN];
#ifdef _WIN32
LARGE_INTEGER silk_Timer_start[silk_NUM_TIMERS_MAX];
#else
unsigned long silk_Timer_start[silk_NUM_TIMERS_MAX];
#endif
unsigned int  silk_Timer_cnt[silk_NUM_TIMERS_MAX];
opus_int64     silk_Timer_min[silk_NUM_TIMERS_MAX];
opus_int64     silk_Timer_sum[silk_NUM_TIMERS_MAX];
opus_int64     silk_Timer_max[silk_NUM_TIMERS_MAX];
opus_int64     silk_Timer_depth[silk_NUM_TIMERS_MAX];

#ifdef _WIN32
void silk_TimerSave(char *file_name)
{
    if( silk_Timer_nTimers > 0 )
    {
        int k;
        FILE *fp;
        LARGE_INTEGER lpFrequency;
        LARGE_INTEGER lpPerformanceCount1, lpPerformanceCount2;
        int del = 0x7FFFFFFF;
        double avg, sum_avg;
        /* estimate overhead of calling performance counters */
        for( k = 0; k < 1000; k++ ) {
            QueryPerformanceCounter(&lpPerformanceCount1);
            QueryPerformanceCounter(&lpPerformanceCount2);
            lpPerformanceCount2.QuadPart -= lpPerformanceCount1.QuadPart;
            if( (int)lpPerformanceCount2.LowPart < del )
                del = lpPerformanceCount2.LowPart;
        }
        QueryPerformanceFrequency(&lpFrequency);
        /* print results to file */
        sum_avg = 0.0f;
        for( k = 0; k < silk_Timer_nTimers; k++ ) {
            if (silk_Timer_depth[k] == 0) {
                sum_avg += (1e6 * silk_Timer_sum[k] / silk_Timer_cnt[k] - del) / lpFrequency.QuadPart * silk_Timer_cnt[k];
            }
        }
        fp = fopen(file_name, "w");
        fprintf(fp, "                                min         avg     %%         max      count\n");
        for( k = 0; k < silk_Timer_nTimers; k++ ) {
            if (silk_Timer_depth[k] == 0) {
                fprintf(fp, "%-28s", silk_Timer_tags[k]);
            } else if (silk_Timer_depth[k] == 1) {
                fprintf(fp, " %-27s", silk_Timer_tags[k]);
            } else if (silk_Timer_depth[k] == 2) {
                fprintf(fp, "  %-26s", silk_Timer_tags[k]);
            } else if (silk_Timer_depth[k] == 3) {
                fprintf(fp, "   %-25s", silk_Timer_tags[k]);
            } else {
                fprintf(fp, "    %-24s", silk_Timer_tags[k]);
            }
            avg = (1e6 * silk_Timer_sum[k] / silk_Timer_cnt[k] - del) / lpFrequency.QuadPart;
            fprintf(fp, "%8.2f", (1e6 * (silk_max_64(silk_Timer_min[k] - del, 0))) / lpFrequency.QuadPart);
            fprintf(fp, "%12.2f %6.2f", avg, 100.0 * avg / sum_avg * silk_Timer_cnt[k]);
            fprintf(fp, "%12.2f", (1e6 * (silk_max_64(silk_Timer_max[k] - del, 0))) / lpFrequency.QuadPart);
            fprintf(fp, "%10d\n", silk_Timer_cnt[k]);
        }
        fprintf(fp, "                                microseconds\n");
        fclose(fp);
    }
}
#else
void silk_TimerSave(char *file_name)
{
    if( silk_Timer_nTimers > 0 )
    {
        int k;
        FILE *fp;
        /* print results to file */
        fp = fopen(file_name, "w");
        fprintf(fp, "                                min         avg         max      count\n");
        for( k = 0; k < silk_Timer_nTimers; k++ )
        {
            if (silk_Timer_depth[k] == 0) {
                fprintf(fp, "%-28s", silk_Timer_tags[k]);
            } else if (silk_Timer_depth[k] == 1) {
                fprintf(fp, " %-27s", silk_Timer_tags[k]);
            } else if (silk_Timer_depth[k] == 2) {
                fprintf(fp, "  %-26s", silk_Timer_tags[k]);
            } else if (silk_Timer_depth[k] == 3) {
                fprintf(fp, "   %-25s", silk_Timer_tags[k]);
            } else {
                fprintf(fp, "    %-24s", silk_Timer_tags[k]);
            }
            fprintf(fp, "%d ", silk_Timer_min[k]);
            fprintf(fp, "%f ", (double)silk_Timer_sum[k] / (double)silk_Timer_cnt[k]);
            fprintf(fp, "%d ", silk_Timer_max[k]);
            fprintf(fp, "%10d\n", silk_Timer_cnt[k]);
        }
        fprintf(fp, "                                microseconds\n");
        fclose(fp);
    }
}
#endif

#endif /* SILK_TIC_TOC */

#if SILK_DEBUG
FILE *silk_debug_store_fp[ silk_NUM_STORES_MAX ];
int silk_debug_store_count = 0;
#endif /* SILK_DEBUG */