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#include "UnityPrefix.h"
#include "AvatarPlayback.h"
#include "Runtime/mecanim/animation/avatar.h"
#include "Runtime/Serialize/Blobification/BlobWrite.h"
#include "Runtime/Animation/MecanimUtility.h"
#include "Runtime/Utilities/LogAssert.h"
enum { kMaxFrameCount = 10000};
AvatarPlayback::AvatarPlayback(MemLabelId label)
: m_Alloc(label),
m_FrameCount(-1),
m_CursorIndex(-1),
m_StartIndex(-1),
m_StopIndex(-1)
{
}
void AvatarPlayback::Init(int frameCount)
{
Clear();
if(frameCount > 0 )
{
if(frameCount > kMaxFrameCount )
WarningString("Could not allocate requested frameCount for Animator Recording. 10000 frames where allocated.");
m_Frames.resize(min<unsigned int>(frameCount,kMaxFrameCount));
m_FrameCount = m_Frames.size();
}
else
{
m_FrameCount = 0 ;
}
m_CursorIndex = -1;
m_StartIndex = -1 ;
m_StopIndex = -1;
}
void AvatarPlayback::Clear()
{
for(int i = 0 ; i < m_Frames.size() ; i++)
{
mecanim::animation::DestroyAvatarMemory(m_Frames[i].m_AvatarMemory, m_Alloc);
}
m_Frames.clear();
}
int AvatarPlayback::NextIndex(int index)
{
return m_FrameCount > 0 ? (index+1)%m_FrameCount : index+1;
}
mecanim::animation::AvatarMemory* AvatarPlayback::PlayFrame(float time, float &effectiveTime)
{
int frameIndex = m_StopIndex;
bool found = false;
if(m_StartIndex == -1)
return 0;
int i = m_StartIndex;
int prevIndex = i;
int endIndex = NextIndex(m_StopIndex);
do // at this point, we have a least one frame recorded
{
if(m_Frames[i].m_CurrentTime > time)
{
frameIndex = prevIndex;
found = true;
}
prevIndex = i;
i = NextIndex(i);
} while(i != endIndex && !found);
effectiveTime = m_Frames[frameIndex].m_CurrentTime;
m_CursorIndex = frameIndex;
return m_Frames[frameIndex].m_AvatarMemory;
}
void AvatarPlayback::RecordFrame(float deltaTime, const mecanim::animation::AvatarMemory* srcMemory)
{
if(m_FrameCount == -1)
{
WarningString("Could not record Animator. Frame allocation has failed.");
return;
}
AvatarFrame newFrame;
if(m_StartIndex != -1)
newFrame.m_CurrentTime = m_Frames[m_CursorIndex].m_CurrentTime + deltaTime;
size_t size=0;
newFrame.m_AvatarMemory = CopyBlob( *srcMemory, m_Alloc, size);
m_CursorIndex = NextIndex(m_CursorIndex);
if(m_StartIndex == m_CursorIndex|| m_StartIndex == -1) // increment startIndex when the cursor is writing on it (the buffer is full)
{
if(m_StartIndex != -1)
mecanim::animation::DestroyAvatarMemory(m_Frames[m_CursorIndex].m_AvatarMemory, m_Alloc);
m_StartIndex = NextIndex(m_StartIndex);
}
m_StopIndex = m_CursorIndex;
if(m_FrameCount > 0)
m_Frames[m_CursorIndex] = newFrame;
else
m_Frames.push_back(newFrame);
}
float AvatarPlayback::CursorTime() {return m_CursorIndex != -1 ? m_Frames[m_CursorIndex].m_CurrentTime : -1;}
float AvatarPlayback::StartTime() {return m_CursorIndex != -1 ? m_Frames[m_StartIndex].m_CurrentTime : -1;}
float AvatarPlayback::StopTime() {return m_CursorIndex != -1 ? m_Frames[m_StopIndex].m_CurrentTime : -1;}
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