//template<typename BitPacker>
public bool encodeOmegaSigned(ref BitPacker packer, int val)
{
if (!packer.encodeSmall((ushort)((val < 0) ? 1 : 0), 1))
return false;
if (val < 0)
val = -val - 1;
return encodeOmega(ref packer, (uint)val);
}
//template<typename BitPacker>
public bool encodeOmega(ref BitPacker packer, uint val)
{
// Most of the time (94% in a few tests) val was 8 bits or less.
if (val < OmegaCodeTableSize)
return packer.encodeSmall(mOmegaCodeTable[val].mCode, mOmegaCodeTable[val].mLen);
int len;
UInt64 code = getOmegaCode(out len, val);
return packer.encode(code, len);
}
public bool DecompressFrame(BTimelineSampleCodec decomp, ref BRetiredProfileSample[] decodedSamplesBuffer)
{
BProfileSection[] sections = mSections;
if (mCompressedFrame == null)
{
return(false);
}
ICoderBuffer buffer = mCompressedFrame.GetBuffer();
decomp.resetModel();
buffer.setPos(0);
BitPacker bitPacker = new BitPacker(buffer);
bool success = bitPacker.decodeStart();
BRetiredProfileSample decodedSample;
int i;
try
{
for (i = 0; i < mNumSamples; i++)
{
decodedSample = decodedSamplesBuffer[i];
success = decomp.decodeSample(bitPacker, ref decodedSample, sections);
if (success == false)
{
ErrorHandler.Error(String.Format("Error decompressing sample {0} from frame# {1}", i, this.mFrameNumber));
// return false;
}
ProcessSample(decodedSample, i);
}
mDutyCycle.BuildDutyCycle(ref decodedSamplesBuffer, mNumSamples, false);
mDutyCycle.mStartTime = mStartTime;
if (this.mbHasGPUSamples == true)
{
mGpuDutyCycle.BuildDutyCycle(ref decodedSamplesBuffer, mNumSamples, true);
mGpuDutyCycle.mStartTime = mStartTime;
}
mSamples = decodedSamplesBuffer;
}
catch (System.Exception ex)
{
ErrorHandler.Error(ex.ToString());
return(false);
}
return(true);
}
//template<typename BitPacker>
public bool decodeOmegaSigned(ref BitPacker packer, out int Value)
{
Value = 0;
uint signFlag;
if (!packer.decode(out signFlag, 1))
return false;
uint uvalue;
if (!decodeOmega(ref packer, out uvalue))
return false;
Value = (int)uvalue;
if (signFlag != 0)
Value = -Value - 1;
return true;
}
//template<typename BitPacker>
public bool decodeOmega(ref BitPacker packer, out uint Value)
{
// if (!(packer.decodeLookahead(1) != 0))
// {
// Value = 0;
// return packer.decodeRemoveBits(1);
// }
uint lookaheadTableOfs = packer.decodeLookahead(LookaheadTableBits);
if (-1 != mLookaheadTable[lookaheadTableOfs].mCodeLen)
{
packer.decodeRemoveBits(mLookaheadTable[lookaheadTableOfs].mCodeLen);
Value = mLookaheadTable[lookaheadTableOfs].mCodeVal;
return true;
}
////////////////////
Value = 0;
uint n;
if (!packer.decode(out n, 2))
return false;
n = mReverseByteTable[n << 6];
while (packer.decodeLookahead(1) != 0)
{
/*const*/ int len = (int)(n + 1);
if (!packer.decode(out n, len))
return false;
n = reverseDWORD(n << (32 - len));
}
BDEBUG_ASSERT(n != 0);
Value = n - 1;
return packer.decodeRemoveBits(1);
}
// false on failure
//template<typename BitPackerType>
public bool decodeSample(BitPacker bitPacker, ref BRetiredProfileSample decodedSample, /*const*/ /*BAlignedArray<const BProfileSection*>&*/ BProfileSection[] sections)
{
if (sections == null)
{
ErrorHandler.Error("Can't decompress frame, sections == null!");
return(false);
}
uint sectionID;
if (-1 == mPrevLevel)
{
if (!mCoder.decodeOmega(ref bitPacker, out sectionID))
{
return(false);
}
}
else
{
int sectionIDDelta;
if (!mCoder.decodeOmegaSigned(ref bitPacker, out sectionIDDelta))
{
return(false);
}
sectionID = /*static_cast<BSectionID>*/ (ushort)(sectionIDDelta + mSectionPredDataArray[mPrevSectionID].mNextSectionID);
}
decodedSample.mSectionID = /*static_cast<BSectionID>*/ (ushort)(sectionID);
// Sanity check, we should never have more than a few hundred sections!
if (sectionID >= 512)
{
return(false);
}
if (sectionID >= size(mSectionPredDataArray))
{
resize(ref mSectionPredDataArray, (int)sectionID + 100);//the current resize operation is slow...
}
// if this fails the passed in section array wasn't completely up to date
if (sectionID >= size(sections))
{
return(false);
}
bool cpuOnly = false;
if (sections[sectionID] != null)
{
/*const*/
cpuOnly = sections[sectionID].cpuOnly();
}
uint /*BCoderTime*/ cpuStartTime = 0;
uint /*BCoderTime*/ cpuEndTime;
uint /*BCoderTime*/ cpuDuration;
uint /*BCoderTime*/ gpuStartTime = 0;
uint /*BCoderTime*/ gpuEndTime = 0;
uint /*BCoderTime*/ gpuDuration = 0;
if (-1 == mPrevLevel)
{
uint level;
if (!mCoder.decodeOmega(ref bitPacker, out level))
{
return(false);
}
decodedSample.mLevel = /*static_cast<uchar>*/ (byte)(level);
// sanity check
if (level >= 128)
{
return(false);
}
if (!mCoder.decodeOmega(ref bitPacker, out decodedSample.mUserID))
{
return(false);
}
if (!bitPacker.decode(out cpuStartTime, 32))
{
return(false);
}
if (!bitPacker.decode(out cpuEndTime, 32))
{
return(false);
}
if (!cpuOnly)
{
if (!bitPacker.decode(out gpuStartTime, 32))
{
return(false);
}
if (!bitPacker.decode(out gpuEndTime, 32))
{
return(false);
}
}
cpuDuration = cpuEndTime - cpuStartTime;
gpuDuration = gpuEndTime - gpuStartTime;
}
else
{
int levelDelta;
if (!mCoder.decodeOmegaSigned(ref bitPacker, out levelDelta))
{
return(false);
}
decodedSample.mLevel = /*static_cast<uchar>*/ (byte)(levelDelta + mPrevLevel);
// Decode user ID - almost always 0, so read a single bit to determine if we need to omega decode the delta.
int userIDDelta = 0;
uint userIDDeltaNonZeroFlag;
if (!bitPacker.decode(out userIDDeltaNonZeroFlag, 1))
{
return(false);
}
if (userIDDeltaNonZeroFlag > 0)
{
if (!mCoder.decodeOmegaSigned(ref bitPacker, out userIDDelta))
{
return(false);
}
}
decodedSample.mUserID = (uint)(userIDDelta + mPrevUserID);
// Decode the CPU start time.
uint predStartCPUTime = mPrevCPUEndTime;
if (decodedSample.mLevel > mPrevLevel)
{
predStartCPUTime = mPrevCPUStartTime;
}
uint deltaStartCPUTime;
if (!mCoder.decodeOmega(ref bitPacker, out deltaStartCPUTime))
{
return(false);
}
cpuStartTime = deltaStartCPUTime + mPrevCPUStartTime;
// Decode the CPU duration.
int deltaCPUDuration;
if (!mCoder.decodeOmegaSigned(ref bitPacker, out deltaCPUDuration))
{
return(false);
}
cpuDuration = (uint)(deltaCPUDuration + mSectionPredDataArray[sectionID].mPrevCPUDuration);
cpuEndTime = cpuStartTime + cpuDuration;
if (!cpuOnly)
{
// Decode the GPU start time.
uint predStartGPUTime = mPrevGPUEndTime;
if (decodedSample.mLevel > mPrevLevel)
{
predStartGPUTime = mPrevGPUStartTime;
}
uint deltaStartGPUTime;
if (!mCoder.decodeOmega(ref bitPacker, out deltaStartGPUTime))
{
return(false);
}
gpuStartTime = deltaStartGPUTime + mPrevGPUStartTime;
// Decode the GPU end time.
int deltaGPUDuration;
if (!mCoder.decodeOmegaSigned(ref bitPacker, out deltaGPUDuration))
{
return(false);
}
gpuDuration = (uint)(deltaGPUDuration + mSectionPredDataArray[sectionID].mPrevGPUDuration);
gpuEndTime = gpuStartTime + gpuDuration;
}
}
// Update the model - only record those things we need for speed
mSectionPredDataArray[sectionID].mPrevCPUDuration = cpuDuration;
mSectionPredDataArray[sectionID].mPrevGPUDuration = gpuDuration;
mSectionPredDataArray[mPrevSectionID].mNextSectionID = sectionID;
mPrevLevel = decodedSample.mLevel;
mPrevUserID = decodedSample.mUserID;
mPrevCPUStartTime = cpuStartTime;
mPrevCPUEndTime = cpuEndTime;
mPrevGPUStartTime = gpuStartTime;
mPrevGPUEndTime = gpuEndTime;
mPrevSectionID = sectionID;
decodedSample.mCPUStartTime = cpuStartTime;
decodedSample.mCPUEndTime = cpuEndTime;
decodedSample.mGPUStartTime = 0;
decodedSample.mGPUEndTime = 0;
if (!cpuOnly)
{
decodedSample.mGPUStartTime = gpuStartTime;
decodedSample.mGPUEndTime = gpuEndTime;
}
return(true);
}
// false on failure
//template<typename BitPackerType>
public bool codeSample(BitPacker bitPacker, /*const*/ ref BRetiredProfileSample sample, /*const*/ ref BProfileSection pSection)
{
if (sample.mSectionID >= size(mSectionPredDataArray))
{
resize(ref mSectionPredDataArray, sample.mSectionID + 1);
}
/*const*/ uint /*BCoderTime*/ cpuStartTime = sample.mCPUStartTime;
/*const*/ uint /*BCoderTime*/ cpuEndTime = sample.mCPUEndTime;
uint /*BCoderTime*/ gpuStartTime = 0;
uint /*BCoderTime*/ gpuEndTime = 0;
if (!pSection.cpuOnly())
{
gpuStartTime = sample.mGPUStartTime;
gpuEndTime = sample.mGPUEndTime;
}
uint /*BCoderTime*/ cpuDuration = cpuEndTime - cpuStartTime;
uint /*BCoderTime*/ gpuDuration = gpuEndTime - gpuStartTime;
if (-1 == mPrevLevel)
{
if (!mCoder.encodeOmega(ref bitPacker, sample.mSectionID))
{
return(false);
}
// Model is empty - send uncompressed sample
if (!mCoder.encodeOmega(ref bitPacker, sample.mLevel))
{
return(false);
}
if (!mCoder.encodeOmega(ref bitPacker, sample.mUserID))
{
return(false);
}
if (!bitPacker.encode(cpuStartTime, 32))
{
return(false);
}
if (!bitPacker.encode(cpuEndTime, 32))
{
return(false);
}
if (!pSection.cpuOnly())
{
if (!bitPacker.encode(gpuStartTime, 32))
{
return(false);
}
if (!bitPacker.encode(gpuEndTime, 32))
{
return(false);
}
}
}
else
{
// Compress sample
// Code the section ID delta
int sectionIDDelta = (int)(sample.mSectionID - mSectionPredDataArray[mPrevSectionID].mNextSectionID);
if (!mCoder.encodeOmegaSigned(ref bitPacker, sectionIDDelta))
{
return(false);
}
// Code the level delta using 1 or 2 bits [-1, 0, or 1]
/*const*/ int levelDelta = sample.mLevel - mPrevLevel;
if (!mCoder.encodeOmegaSigned(ref bitPacker, levelDelta))
{
return(false);
}
/*const*/ int userIDDelta = (int)(sample.mUserID - mPrevUserID);
if (userIDDelta == 0)
{
// Encode single bit to represent userIDDelta == 0.
if (!bitPacker.encode((uint)(0), (int)(1)))
{
return(false);
}
}
else
{
if (!bitPacker.encode((uint)(1), (int)(1)))
{
return(false);
}
if (!mCoder.encodeOmegaSigned(ref bitPacker, userIDDelta))
{
return(false);
}
}
uint predStartCPUTime = mPrevCPUEndTime;
if (sample.mLevel > mPrevLevel)
{
predStartCPUTime = mPrevCPUStartTime;
}
//BDEBUG_ASSERT(predStartCPUTime <= cpuStartTime);
/*const*/ uint deltaStartCPUTime = cpuStartTime - mPrevCPUStartTime;
if (!mCoder.encodeOmega(ref bitPacker, deltaStartCPUTime))
{
return(false);
}
/*const*/ int deltaCPUDuration = (int)(cpuDuration - mSectionPredDataArray[sample.mSectionID].mPrevCPUDuration);
if (!mCoder.encodeOmegaSigned(ref bitPacker, deltaCPUDuration))
{
return(false);
}
if (!pSection.cpuOnly())
{
uint predStartGPUTime = mPrevGPUEndTime;
if (sample.mLevel > mPrevLevel)
{
predStartGPUTime = mPrevGPUStartTime;
}
if (!sample.hasGPUTimes())
{
// this should be very rare-- only when the gpu samples time out
// we don't want to try encoding a negative start gpu time delta
// instead, ensure the gpu times are both equal, which means the sample is invalid
gpuStartTime = predStartGPUTime;
gpuEndTime = predStartGPUTime;
gpuDuration = 0;
}
//BDEBUG_ASSERT(predStartGPUTime <= gpuStartTime);
/*const*/ uint deltaStartGPUTime = gpuStartTime - mPrevGPUStartTime;
if (!mCoder.encodeOmega(ref bitPacker, deltaStartGPUTime))
{
return(false);
}
/*const*/ int deltaGPUDuration = (int)(gpuDuration - mSectionPredDataArray[sample.mSectionID].mPrevGPUDuration);
if (!mCoder.encodeOmegaSigned(ref bitPacker, deltaGPUDuration))
{
return(false);
}
}
}
// Update the model - only record those things we need for speed
mSectionPredDataArray[sample.mSectionID].mPrevCPUDuration = cpuDuration;
mSectionPredDataArray[sample.mSectionID].mPrevGPUDuration = gpuDuration;
mSectionPredDataArray[mPrevSectionID].mNextSectionID = sample.mSectionID;
mPrevLevel = sample.mLevel;
mPrevUserID = sample.mUserID;
mPrevSectionID = sample.mSectionID;
mPrevCPUStartTime = cpuStartTime;
mPrevCPUEndTime = cpuEndTime;
mPrevGPUStartTime = gpuStartTime;
mPrevGPUEndTime = gpuEndTime;
return(true);
}