view release on metacpan or  search on metacpan

src/Source/LibJXR/image/sys/strcodec.c  view on Meta::CPAN

    if (PACKET1(pIO->pbStart, pIO->pbCurrent, PACKETLENGTH))
    {
        PERFTIMER_STOP(pSC->m_fMeasurePerf, pSC->m_ptEncDecPerf);
        err = pIO->pWS->Write(pIO->pWS, pIO->pbStart, PACKETLENGTH);
        PERFTIMER_START(pSC->m_fMeasurePerf, pSC->m_ptEncDecPerf);
        Call(err);

        // reposition pbStart pointer
        pIO->pbStart = MASKPTR(pIO->pbStart + PACKETLENGTH, pIO->iMask);
    }

Cleanup:
    return err;
}

// write out partially filled buffer and detach bitIO from IStream
ERR detachISWrite(CWMImageStrCodec* pSC, BitIOInfo* pIO)
{
    ERR err = WMP_errSuccess;

    // we can ONLY detach IStream at byte boundary
    assert(0 == (pIO->cBitsUsed % 8));
    Call(writeIS_L1(pSC, pIO));

    PERFTIMER_STOP(pSC->m_fMeasurePerf, pSC->m_ptEncDecPerf);
    err = pIO->pWS->Write(pIO->pWS, pIO->pbStart, pIO->pbCurrent + pIO->cBitsUsed / 8 - pIO->pbStart);
    PERFTIMER_START(pSC->m_fMeasurePerf, pSC->m_ptEncDecPerf);
    Call(err);

    pIO->pWS = NULL;
Cleanup:
    return err;
}

//=========================
// Performance Measurement
//=========================
#ifndef DISABLE_PERF_MEASUREMENT

void OutputIndivPerfTimer(struct PERFTIMERSTATE *pPerfTimer,
                          char *pszTimerName,
                          char *pszDescription,
                          float fltMegaPixels)
{
    PERFTIMERRESULTS    rResults;
    Bool                fResult;

    fResult = FALSE;
    printf("%s (%s): ", pszTimerName, pszDescription);
    if (pPerfTimer)
    {
        fResult = PerfTimerGetResults(pPerfTimer, &rResults);
        if (fResult)
        {
            printf("%.3f milliseconds, %.6f MP/sec\n", (float)rResults.iElapsedTime / 1000000,
                1000000000 * fltMegaPixels / rResults.iElapsedTime);
            if (rResults.iZeroTimeIntervals > 0)
            {
                printf("   *** WARNING: %d time intervals were measured as zero. "
                    "This perf timer has insufficient precision!\n\n",
                    (int) rResults.iZeroTimeIntervals);
            }
        }
    }
    if (FALSE == fResult)
        printf("Results not available!\n");
}


void OutputPerfTimerReport(CWMImageStrCodec *pState)
{
    float               fltMegaPixels;

    assert(pState->m_fMeasurePerf);

    printf("***************************************************************************\n");
    printf("* Perf Report\n");
    printf("***************************************************************************\n\n");
    
    fltMegaPixels = (float)pState->WMII.cWidth * pState->WMII.cHeight / 1000000;
    printf("Image Width = %d, Height = %d, total MegaPixels = %.1f MP\n",
        (int) pState->WMII.cWidth, (int) pState->WMII.cHeight, fltMegaPixels);

    OutputIndivPerfTimer(pState->m_ptEncDecPerf, "m_ptEncDecPerf", "excl I/O", fltMegaPixels);
    OutputIndivPerfTimer(pState->m_ptEndToEndPerf, "m_ptEndToEndPerf", "incl I/O", fltMegaPixels);
}

#endif // DISABLE_PERF_MEASUREMENT