You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
464 lines
13 KiB
464 lines
13 KiB
// Copyright (c) 1999-2001 Microsoft Corporation. All rights reserved.
|
|
//
|
|
// Declaration of CParamsManager.
|
|
//
|
|
|
|
#include "dmerror.h"
|
|
#include "param.h"
|
|
#include "math.h"
|
|
#include "..\shared\validate.h"
|
|
|
|
CParamsManager::CParamsManager()
|
|
{
|
|
m_fDirty = FALSE;
|
|
m_fMusicTime = FALSE;
|
|
m_cParams = 0;
|
|
m_pCurveLists = NULL;
|
|
m_pParamInfos = NULL;
|
|
InitializeCriticalSection(&m_ParamsCriticalSection);
|
|
// Note: on pre-Blackcomb OS's, this call can raise an exception; if it
|
|
// ever pops in stress, we can add an exception handler and retry loop.
|
|
}
|
|
|
|
CParamsManager::~CParamsManager()
|
|
{
|
|
delete[] m_pCurveLists;
|
|
delete[] m_pParamInfos;
|
|
DeleteCriticalSection(&m_ParamsCriticalSection);
|
|
}
|
|
|
|
HRESULT CParamsManager::InitParams(DWORD cParams, ParamInfo *pParamInfo)
|
|
{
|
|
m_pCurveLists = new CCurveList[cParams];
|
|
if (!m_pCurveLists)
|
|
return E_OUTOFMEMORY;
|
|
|
|
// save the parameter info
|
|
m_pParamInfos = new ParamInfo[cParams];
|
|
if (!m_pParamInfos)
|
|
return E_OUTOFMEMORY;
|
|
for (DWORD dwIndex = 0; dwIndex < cParams; dwIndex++)
|
|
{
|
|
if (pParamInfo[dwIndex].dwIndex < cParams)
|
|
{
|
|
memcpy(&m_pParamInfos[pParamInfo[dwIndex].dwIndex], &pParamInfo[dwIndex], sizeof(ParamInfo));
|
|
}
|
|
}
|
|
m_cParams = cParams;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT CParamsManager::GetParamCount(DWORD *pdwParams)
|
|
{
|
|
if (pdwParams == NULL)
|
|
return E_POINTER;
|
|
|
|
*pdwParams = m_cParams;
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT CParamsManager::GetParamInfo(DWORD dwParamIndex, MP_PARAMINFO *pInfo)
|
|
{
|
|
if (!pInfo)
|
|
{
|
|
return E_POINTER;
|
|
}
|
|
if (dwParamIndex < m_cParams)
|
|
{
|
|
*pInfo = m_pParamInfos[dwParamIndex].MParamInfo;
|
|
return S_OK;
|
|
}
|
|
else
|
|
{
|
|
return E_INVALIDARG;
|
|
}
|
|
}
|
|
|
|
HRESULT CParamsManager::GetParamText(DWORD dwParamIndex, WCHAR **ppwchText)
|
|
{
|
|
if (!ppwchText)
|
|
{
|
|
return E_POINTER;
|
|
}
|
|
if (dwParamIndex < m_cParams)
|
|
{
|
|
// write string of format: "Label\0Unit\0Enums1\0Enum2\0...EnumN\0\0"
|
|
ParamInfo &pinfo = m_pParamInfos[dwParamIndex];
|
|
int iUnit = wcslen(pinfo.MParamInfo.szLabel) + 1; // begin writing unit text here
|
|
int iEnums = iUnit + wcslen(pinfo.MParamInfo.szUnitText) + 1; // begin writing enum text here
|
|
int iEnd = iEnums + wcslen(pinfo.pwchText) + 1; // write the final (second) null terminator here
|
|
WCHAR *pwsz = static_cast<WCHAR *>(CoTaskMemAlloc((iEnd + 1) * sizeof(WCHAR)));
|
|
if (!pwsz)
|
|
return E_OUTOFMEMORY;
|
|
|
|
// wcscpy will write into various points of the string, neatly terminating each with a null
|
|
wcscpy(pwsz, pinfo.MParamInfo.szLabel);
|
|
wcscpy(pwsz + iUnit, pinfo.MParamInfo.szUnitText);
|
|
wcscpy(pwsz + iEnums, pinfo.pwchText);
|
|
|
|
// The text field was defined with commas to separate the enum values.
|
|
// Replace them with NULL characters now.
|
|
for (WCHAR *pwch = pwsz + iEnums; *pwch; ++pwch)
|
|
{
|
|
if (*pwch == L',')
|
|
*pwch = L'\0';
|
|
}
|
|
|
|
pwsz[iEnd] = L'\0';
|
|
|
|
*ppwchText = pwsz;
|
|
return S_OK;
|
|
}
|
|
else
|
|
{
|
|
return E_INVALIDARG;
|
|
}
|
|
}
|
|
|
|
HRESULT CParamsManager::GetNumTimeFormats(DWORD *pdwNumTimeFormats)
|
|
{
|
|
if (!pdwNumTimeFormats)
|
|
{
|
|
return E_POINTER;
|
|
}
|
|
*pdwNumTimeFormats = 2;
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT CParamsManager::GetSupportedTimeFormat(DWORD dwFormatIndex, GUID *pguidTimeFormat)
|
|
{
|
|
if (!pguidTimeFormat)
|
|
{
|
|
return E_POINTER;
|
|
}
|
|
if (dwFormatIndex == 0)
|
|
{
|
|
*pguidTimeFormat = GUID_TIME_REFERENCE;
|
|
}
|
|
else
|
|
{
|
|
*pguidTimeFormat = GUID_TIME_MUSIC;
|
|
}
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT CParamsManager::GetCurrentTimeFormat( GUID *pguidTimeFormat, MP_TIMEDATA *pTimeData)
|
|
{
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
HRESULT CParamsManager::CopyParamsFromSource( CParamsManager * pSource)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
hr = InitParams(pSource->m_cParams, pSource->m_pParamInfos);
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
DWORD dwIndex;
|
|
for (dwIndex = 0; dwIndex < m_cParams; dwIndex++)
|
|
{
|
|
CCurveItem *pCurve = pSource->m_pCurveLists[dwIndex].GetHead();
|
|
for (;pCurve;pCurve = pCurve->GetNext())
|
|
{
|
|
CCurveItem *pNew = new CCurveItem;
|
|
if (!pNew)
|
|
{
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
pNew->m_Envelope = pCurve->m_Envelope;
|
|
m_pCurveLists[dwIndex].AddTail(pNew);
|
|
}
|
|
}
|
|
}
|
|
return hr;
|
|
}
|
|
|
|
inline float ValRange(float valToClip, float valMin, float valMax)
|
|
{
|
|
return valToClip < valMin
|
|
? valMin
|
|
: (valToClip > valMax ? valMax : valToClip);
|
|
}
|
|
|
|
HRESULT CParamsManager::GetParamFloat(DWORD dwParamIndex, REFERENCE_TIME rtTime, float *pval)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
|
|
if (dwParamIndex >= m_cParams)
|
|
return E_INVALIDARG;
|
|
|
|
EnterCriticalSection(&m_ParamsCriticalSection);
|
|
CCurveList *pList = &m_pCurveLists[dwParamIndex];
|
|
ParamInfo *pInfo = &m_pParamInfos[dwParamIndex];
|
|
// if no points, then neutral value
|
|
CCurveItem *pCurve = pList->GetHead();
|
|
if (!pCurve)
|
|
{
|
|
*pval = pInfo->MParamInfo.mpdNeutralValue;
|
|
LeaveCriticalSection(&m_ParamsCriticalSection);
|
|
return S_OK;
|
|
}
|
|
|
|
// Find the curve during or before the requested time
|
|
// If the time is during a curve, we will use that.
|
|
// If not, we need the end value of the previous curve.
|
|
// Our list keeps these in backwards order, so we are scanning from the
|
|
// highest point in time backwards.
|
|
|
|
for (;pCurve && pCurve->m_Envelope.rtStart > rtTime;pCurve = pCurve->GetNext());
|
|
|
|
// If there is no pCurve, there was no curve prior to or during rtTime. Give up.
|
|
if (!pCurve)
|
|
{
|
|
*pval = pInfo->MParamInfo.mpdNeutralValue;
|
|
LeaveCriticalSection(&m_ParamsCriticalSection);
|
|
return S_OK;
|
|
}
|
|
// Now, if pCurve ends before the requested time,
|
|
// return the final value of pCurve, since that will hold until the start of the next curve.
|
|
if (pCurve->m_Envelope.rtEnd < rtTime)
|
|
{
|
|
*pval = pCurve->m_Envelope.valEnd;
|
|
LeaveCriticalSection(&m_ParamsCriticalSection);
|
|
return S_OK;
|
|
}
|
|
|
|
// If we get this far, the curve must bound rtTime.
|
|
|
|
if (pCurve->m_Envelope.iCurve & MP_CURVE_JUMP)
|
|
{
|
|
*pval = pCurve->m_Envelope.valEnd;
|
|
LeaveCriticalSection(&m_ParamsCriticalSection);
|
|
return S_OK;
|
|
}
|
|
|
|
REFERENCE_TIME rtTimeChange = pCurve->m_Envelope.rtEnd - pCurve->m_Envelope.rtStart;
|
|
REFERENCE_TIME rtTimeIntermediate = rtTime - pCurve->m_Envelope.rtStart;
|
|
|
|
float fltScalingX = static_cast<float>(rtTimeIntermediate) / rtTimeChange; // horizontal distance along curve between 0 and 1
|
|
float fltScalingY; // height of curve at that point between 0 and 1 based on curve function
|
|
switch (pCurve->m_Envelope.iCurve)
|
|
{
|
|
case MP_CURVE_SQUARE:
|
|
fltScalingY = fltScalingX * fltScalingX;
|
|
break;
|
|
case MP_CURVE_INVSQUARE:
|
|
fltScalingY = (float) sqrt(fltScalingX);
|
|
break;
|
|
case MP_CURVE_SINE:
|
|
// §§ Maybe we should have a lookup table here?
|
|
fltScalingY = (float) (sin(fltScalingX * 3.1415926535 - (3.1415926535/2)) + 1) / 2;
|
|
break;
|
|
case MP_CURVE_LINEAR:
|
|
default:
|
|
fltScalingY = fltScalingX;
|
|
}
|
|
// Find out if we need to pull the start point from the previous curve,
|
|
// the default neutral value, or the current curve.
|
|
float fStartVal = pCurve->m_Envelope.valStart;
|
|
if (pCurve->m_Envelope.flags & MPF_ENVLP_BEGIN_NEUTRALVAL)
|
|
{
|
|
fStartVal = pInfo->MParamInfo.mpdNeutralValue;
|
|
}
|
|
// Currentval, if it exists, will override neutralval.
|
|
if (pCurve->m_Envelope.flags & MPF_ENVLP_BEGIN_CURRENTVAL)
|
|
{
|
|
// Take advantage of the fact that these are inserted in backwards order.
|
|
// Scan for the previous curve that ends before this time.
|
|
CCurveItem *pPrevious = pCurve->GetNext();
|
|
for (;pPrevious && pPrevious->m_Envelope.rtEnd > rtTime;pPrevious = pPrevious->GetNext());
|
|
if (pPrevious)
|
|
{
|
|
fStartVal = pPrevious->m_Envelope.valEnd;
|
|
}
|
|
}
|
|
|
|
// Apply that scaling to the range of the actual points
|
|
*pval = (pCurve->m_Envelope.valEnd - pCurve->m_Envelope.valStart) * fltScalingY + pCurve->m_Envelope.valStart;
|
|
LeaveCriticalSection(&m_ParamsCriticalSection);
|
|
return hr;
|
|
}
|
|
|
|
HRESULT CParamsManager::GetParamInt(DWORD dwParamIndex, REFERENCE_TIME rt, long *pval)
|
|
{
|
|
HRESULT hr = E_POINTER;
|
|
if (pval)
|
|
{
|
|
float fVal;
|
|
hr = GetParamFloat(dwParamIndex, rt, &fVal);
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
*pval = (long) (fVal + 1/2); // Round.
|
|
}
|
|
}
|
|
return hr;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
// IMediaParams
|
|
|
|
HRESULT CParamsManager::GetParam(DWORD dwParamIndex, MP_DATA *pValue)
|
|
{
|
|
V_INAME(CParams::GetParam);
|
|
V_PTR_WRITE(pValue, MP_DATA);
|
|
if (dwParamIndex >= m_cParams)
|
|
return E_INVALIDARG;
|
|
|
|
EnterCriticalSection(&m_ParamsCriticalSection);
|
|
|
|
CCurveList *pList = &m_pCurveLists[dwParamIndex];
|
|
ParamInfo *pInfo = &m_pParamInfos[dwParamIndex];
|
|
// if no points, then neutral value
|
|
CCurveItem *pCurve = pList->GetHead();
|
|
if (pCurve)
|
|
{
|
|
*pValue = pCurve->m_Envelope.valEnd;
|
|
}
|
|
else
|
|
{
|
|
*pValue = pInfo->MParamInfo.mpdNeutralValue;
|
|
}
|
|
LeaveCriticalSection(&m_ParamsCriticalSection);
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT CParamsManager::SetParam(DWORD dwParamIndex, MP_DATA value)
|
|
{
|
|
V_INAME(CParams::SetParam);
|
|
|
|
if (dwParamIndex >= m_cParams)
|
|
return E_INVALIDARG;
|
|
|
|
EnterCriticalSection(&m_ParamsCriticalSection);
|
|
m_fDirty = TRUE;
|
|
CCurveList *pList = &m_pCurveLists[dwParamIndex];
|
|
ParamInfo *pInfo = &m_pParamInfos[dwParamIndex];
|
|
// If we've already got a list, just force the most recent curve item to this value.
|
|
// Otherwise, create a node and add it.
|
|
CCurveItem *pCurve = pList->GetHead();
|
|
if (!pCurve)
|
|
{
|
|
pCurve = new CCurveItem;
|
|
if (pCurve)
|
|
{
|
|
pCurve->m_Envelope.rtStart = 0x8000000000000000; // Max negative.
|
|
pCurve->m_Envelope.rtEnd = 0x7FFFFFFFFFFFFFFF; // Max positive.
|
|
pCurve->m_Envelope.flags = 0;
|
|
pList->AddHead(pCurve);
|
|
}
|
|
else
|
|
{
|
|
LeaveCriticalSection(&m_ParamsCriticalSection);
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
}
|
|
pCurve->m_Envelope.valStart = value;
|
|
pCurve->m_Envelope.valEnd = value;
|
|
pCurve->m_Envelope.iCurve = MP_CURVE_JUMP;
|
|
LeaveCriticalSection(&m_ParamsCriticalSection);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT CParamsManager::AddEnvelope(
|
|
DWORD dwParamIndex,
|
|
DWORD cPoints,
|
|
MP_ENVELOPE_SEGMENT *ppEnvelope)
|
|
{
|
|
V_INAME(CParams::AddEnvelope);
|
|
V_PTR_READ(ppEnvelope, *ppEnvelope);
|
|
|
|
if (dwParamIndex >= m_cParams)
|
|
return E_INVALIDARG;
|
|
|
|
if (!m_pParamInfos)
|
|
return DMUS_E_NOT_INIT;
|
|
|
|
HRESULT hr = S_OK;
|
|
EnterCriticalSection(&m_ParamsCriticalSection);
|
|
m_fDirty = TRUE;
|
|
|
|
CCurveList *pList = &m_pCurveLists[dwParamIndex];
|
|
ParamInfo *pInfo = &m_pParamInfos[dwParamIndex];
|
|
|
|
DWORD dwCount;
|
|
for (dwCount = 0; dwCount < cPoints; dwCount++)
|
|
{
|
|
CCurveItem *pCurve = new CCurveItem;
|
|
if (!pCurve)
|
|
{
|
|
hr = E_OUTOFMEMORY;
|
|
break;
|
|
}
|
|
pCurve->m_Envelope = ppEnvelope[dwCount];
|
|
pCurve->m_Envelope.valEnd = ValRange(pCurve->m_Envelope.valEnd,
|
|
pInfo->MParamInfo.mpdMinValue, pInfo->MParamInfo.mpdMaxValue);
|
|
pCurve->m_Envelope.valStart = ValRange(pCurve->m_Envelope.valStart,
|
|
pInfo->MParamInfo.mpdMinValue, pInfo->MParamInfo.mpdMaxValue);
|
|
pList->AddHead(pCurve);
|
|
}
|
|
|
|
LeaveCriticalSection(&m_ParamsCriticalSection);
|
|
|
|
return hr;
|
|
}
|
|
|
|
HRESULT CParamsManager::FlushEnvelope(
|
|
DWORD dwParamIndex,
|
|
REFERENCE_TIME refTimeStart,
|
|
REFERENCE_TIME refTimeEnd)
|
|
{
|
|
if (dwParamIndex >= m_cParams)
|
|
return E_INVALIDARG;
|
|
|
|
if (!m_pParamInfos)
|
|
return DMUS_E_NOT_INIT;
|
|
|
|
if (refTimeStart >= refTimeEnd)
|
|
return E_INVALIDARG;
|
|
|
|
EnterCriticalSection(&m_ParamsCriticalSection);
|
|
m_fDirty = TRUE;
|
|
CCurveList *pList = &m_pCurveLists[dwParamIndex];
|
|
ParamInfo *pInfo = &m_pParamInfos[dwParamIndex];
|
|
CCurveList TempList;
|
|
CCurveItem *pCurve;
|
|
while (pCurve = pList->RemoveHead())
|
|
{
|
|
if ((pCurve->m_Envelope.rtStart >= refTimeStart) &&
|
|
(pCurve->m_Envelope.rtEnd <= refTimeEnd))
|
|
{
|
|
delete pCurve;
|
|
}
|
|
else
|
|
{
|
|
TempList.AddHead(pCurve);
|
|
}
|
|
}
|
|
while (pCurve = TempList.RemoveHead())
|
|
{
|
|
pList->AddHead(pCurve);
|
|
}
|
|
LeaveCriticalSection(&m_ParamsCriticalSection);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT CParamsManager::SetTimeFormat(
|
|
GUID guidTimeFormat,
|
|
MP_TIMEDATA mpTimeData)
|
|
{
|
|
if (guidTimeFormat == GUID_TIME_REFERENCE)
|
|
{
|
|
m_fMusicTime = FALSE;
|
|
}
|
|
else if (guidTimeFormat == GUID_TIME_MUSIC)
|
|
{
|
|
m_fMusicTime = TRUE;
|
|
}
|
|
else
|
|
{
|
|
return E_INVALIDARG;
|
|
}
|
|
return S_OK;
|
|
}
|