CWE-ou-minkata/Sources/Plasma/PubUtilLib/plDrawable/plAccessGeometry.cpp

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*==LICENSE==*/


#include "HeadSpin.h"

#include "plAccessGeometry.h"

#include "pnSceneObject/plDrawInterface.h"

#include "plDrawableSpans.h"
#include "plGeometrySpan.h"

#include "plAccessSpan.h"
#include "plAccessPartySpan.h"
#include "plAccessTriSpan.h"
#include "plAccessVtxSpan.h"
#include "plAccessSnapShot.h"

// For dipping directly into device buffers.
#include "plGBufferGroup.h"
#include "hsGDeviceRef.h"
#include "plPipeline.h"

#include "plTweak.h"

//////////////////////////////////////////////////////////////////////////////////
// Dropping these here, because they have no place else to go except a header.
void plAccessSpan::SetSource(plSpan* s)
{ 
    fLocalToWorld = &s->fLocalToWorld; 
    fWorldToLocal = &s->fWorldToLocal;
    fLocalBounds = &s->fLocalBounds;
    fWorldBounds = &s->fWorldBounds;

    fWaterHeight = s->fProps & plSpan::kWaterHeight ? &s->fWaterHeight : nil;
}
void plAccessSpan::SetSource(plGeometrySpan* s)
{ 
    fLocalToWorld = &s->fLocalToWorld; 
    fWorldToLocal = &s->fWorldToLocal;
    fLocalBounds = &s->fLocalBounds;
    fWorldBounds = &s->fWorldBounds;

    fWaterHeight = s->fProps & plGeometrySpan::kWaterHeight ? &s->fWaterHeight : nil;
}

//////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////
// Simple constructor

plAccessGeometry::plAccessGeometry(plPipeline* pipe)
:   fPipe(pipe)
{
}

//////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////
// Global access stuff.
plAccessGeometry*   plAccessGeometry::fInstance = nil;

void plAccessGeometry::Init(plPipeline* pipe)
{
    plAccessGeometry* oldAcc = fInstance;

    fInstance = new plAccessGeometry(pipe);

    hsRefCnt_SafeUnRef(oldAcc);
}

void plAccessGeometry::DeInit()
{
    if( fInstance )
        fInstance->Nilify();
    hsRefCnt_SafeUnRef(fInstance);
}

void plAccessGeometry::SetTheIntance(plAccessGeometry* i)
{
    hsRefCnt_SafeAssign(fInstance, i);
}




//////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////

// The first couple of these just interpret between the SceneObjects we like to
// think about and the clumps of geometry that comprise each one.

void plAccessGeometry::OpenRO(const plDrawInterface* di, hsTArray<plAccessSpan>& accs, bool useSnap) const
{
    int numGot = 0;
    accs.SetCount(di->GetNumDrawables());
    accs.SetCount(0);
    int j;
    for( j = 0; j < di->GetNumDrawables(); j++ )
    {
        plDrawableSpans* dr = plDrawableSpans::ConvertNoRef(di->GetDrawable(j));
        // Nil dr - it hasn't loaded yet or something.
        if( dr )
        {
            plDISpanIndex& diIndex = dr->GetDISpans(di->GetDrawableMeshIndex(j));
            if( !diIndex.IsMatrixOnly() )
            {
                int k;
                for( k = 0; k < diIndex.GetCount(); k++ )
                {
                    accs.Expand(numGot+1);
                    accs.SetCount(numGot+1);
                    OpenRO(dr, diIndex[k], accs[numGot++]);
                }
            }
        }
    }

}

void plAccessGeometry::OpenRW(const plDrawInterface* di, hsTArray<plAccessSpan>& accs, bool idxToo) const
{
    int numGot = 0;
    accs.Expand(di->GetNumDrawables());
    accs.SetCount(0);
    int j;
    for( j = 0; j < di->GetNumDrawables(); j++ )
    {
        plDrawableSpans* dr = plDrawableSpans::ConvertNoRef(di->GetDrawable(j));
        // Nil dr - it hasn't loaded yet or something.
        if( dr )
        {
            plDISpanIndex& diIndex = dr->GetDISpans(di->GetDrawableMeshIndex(j));
            if( !diIndex.IsMatrixOnly() )
            {
                int k;
                for( k = 0; k < diIndex.GetCount(); k++ )
                {
                    accs.Expand(numGot+1);
                    accs.SetCount(numGot+1);
                    OpenRW(dr, diIndex[k], accs[numGot++], idxToo);
                }
            }
        }
    }
}

void plAccessGeometry::Close(hsTArray<plAccessSpan>& accs) const
{
    int i;
    for( i = 0; i < accs.GetCount(); i++ )
        Close(accs[i]);
}

void plAccessGeometry::TakeSnapShot(const plDrawInterface* di, uint32_t channels) const
{
    int j;
    for( j = 0; j < di->GetNumDrawables(); j++ )
    {
        plDrawableSpans* dr = plDrawableSpans::ConvertNoRef(di->GetDrawable(j));
        // Nil dr - it hasn't loaded yet or something.
        if( dr )
        {
            plDISpanIndex& diIndex = dr->GetDISpans(di->GetDrawableMeshIndex(j));
            if( !diIndex.IsMatrixOnly() )
            {
                int k;
                for( k = 0; k < diIndex.GetCount(); k++ )
                {
                    TakeSnapShot(dr, diIndex[k], channels);
                }
            }
        }
    }
}

void plAccessGeometry::RestoreSnapShot(const plDrawInterface* di, uint32_t channels) const
{
    int j;
    for( j = 0; j < di->GetNumDrawables(); j++ )
    {
        plDrawableSpans* dr = plDrawableSpans::ConvertNoRef(di->GetDrawable(j));
        // Nil dr - it hasn't loaded yet or something.
        if( dr )
        {
            plDISpanIndex& diIndex = dr->GetDISpans(di->GetDrawableMeshIndex(j));
            if( !diIndex.IsMatrixOnly() )
            {
                int k;
                for( k = 0; k < diIndex.GetCount(); k++ )
                {
                    RestoreSnapShot(dr, diIndex[k], channels);
                }
            }
        }
    }
}

void plAccessGeometry::ReleaseSnapShot(const plDrawInterface* di) const
{
    int j;
    for( j = 0; j < di->GetNumDrawables(); j++ )
    {
        plDrawableSpans* dr = plDrawableSpans::ConvertNoRef(di->GetDrawable(j));
        // Nil dr - it hasn't loaded yet or something.
        if( dr )
        {
            plDISpanIndex& diIndex = dr->GetDISpans(di->GetDrawableMeshIndex(j));
            if( !diIndex.IsMatrixOnly() )
            {
                int k;
                for( k = 0; k < diIndex.GetCount(); k++ )
                {
                    ReleaseSnapShot(dr, diIndex[k]);
                }
            }
        }
    }
}

//////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////

void plAccessGeometry::Close(plAccessSpan& acc) const
{
    if( !fPipe )
        return;

    fPipe->CloseAccess(acc);
}

void plAccessGeometry::IOpen(plDrawable* d, uint32_t spanIdx, plAccessSpan& acc, bool useSnap, bool readOnly, bool idxToo) const
{
    acc.SetType(plAccessSpan::kUndefined);

    plDrawableSpans* drawable = plDrawableSpans::ConvertNoRef(d);
    if( !drawable )
        return;

    if( drawable->GetSourceSpans().GetCount() && !drawable->GetNumSpans() )
        IAccessSpanFromSourceSpan(acc, drawable->GetSourceSpans()[spanIdx]);
    else
        IAccessSpanFromSpan(acc, drawable, drawable->GetSpan(spanIdx), useSnap, readOnly);

    if( !readOnly )
    {
        // Need to mark the drawable's data as dirty.
        plDrawableSpans* ds = plDrawableSpans::ConvertNoRef(drawable);
        if( !ds )
            return;
        if( acc.HasAccessVtx() )
        {
            plVertexSpan* vtx = (plVertexSpan*)ds->GetSpan(spanIdx);
            ds->DirtyVertexBuffer(vtx->fGroupIdx, vtx->fVBufferIdx);
        }

        if( idxToo && acc.HasAccessTri() )
        {
            plIcicle* ice = (plIcicle*)ds->GetSpan(spanIdx);
            ds->DirtyIndexBuffer(ice->fGroupIdx, ice->fIBufferIdx);
        }
    }
}

void plAccessGeometry::OpenRO(plDrawable* d, uint32_t spanIdx, plAccessSpan& acc, bool useSnap) const
{
    IOpen(d, spanIdx, acc, useSnap, true);
}

void plAccessGeometry::OpenRW(plDrawable* drawable, uint32_t spanIdx, plAccessSpan& acc, bool idxToo) const
{
    IOpen(drawable, spanIdx, acc, false, false, idxToo);

}

//////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////

void plAccessGeometry::TakeSnapShot(plDrawable* drawable, uint32_t spanIdx, uint32_t channels) const
{
    plDrawableSpans* ds = plDrawableSpans::ConvertNoRef(drawable);
    if( !ds )
        return;
    const plSpan* span = ds->GetSpan(spanIdx);

    if( !span->fSnapShot )
        span->fSnapShot = new plAccessSnapShot;

    plAccessSpan tmp;
    OpenRO(drawable, spanIdx, tmp, false);

    if( tmp.HasAccessVtx() )
    {
        span->fSnapShot->IncRef();
        span->fSnapShot->CopyFrom(tmp.AccessVtx(), channels);
    }
}

void plAccessGeometry::RestoreSnapShot(plDrawable* drawable, uint32_t spanIdx, uint32_t channels) const
{
    plDrawableSpans* ds = plDrawableSpans::ConvertNoRef(drawable);
    if( !ds )
        return;
    const plSpan* span = ds->GetSpan(spanIdx);

    if( !span->fSnapShot )
        return;

    plAccessSpan tmp;
    OpenRW(drawable, spanIdx, tmp);

    if( tmp.HasAccessVtx() )
        span->fSnapShot->CopyTo(tmp.AccessVtx(), channels);
}

void plAccessGeometry::ReleaseSnapShot(plDrawable* drawable, uint32_t spanIdx) const
{
    plDrawableSpans* ds = plDrawableSpans::ConvertNoRef(drawable);
    if( !ds )
        return;
    const plSpan* span = ds->GetSpan(spanIdx);

    if( !span->fSnapShot )
        return;

    span->fSnapShot->Release();
}

//////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////

void plAccessGeometry::IAccessSpanFromSourceSpan(plAccessSpan& dst, const plGeometrySpan* src) const
{
    // Get the connectivity info
    dst.SetType(plAccessSpan::kTri);
    plAccessTriSpan& tri = dst.AccessTri();
    tri.fNumTris = src->fNumIndices / 3;
    tri.fTris = src->fIndexData;
    tri.fIdxDeviceRef = nil;

    dst.SetSource(const_cast<plGeometrySpan*>(src));
    dst.SetMaterial(src->fMaterial);

    plAccessVtxSpan& acc = dst.AccessVtx();
    acc.fNumVerts = (uint16_t)(src->fNumVerts);
    uint32_t sz = src->GetVertexSize(src->fFormat);
    uint8_t* ptr = src->fVertexData;
    acc.PositionStream(ptr, (uint16_t)sz, 0);
    ptr += sizeof(hsPoint3);
    acc.NormalStream(ptr, (uint16_t)sz, 0);
    ptr += sizeof(hsVector3);
    acc.DiffuseStream(src->fDiffuseRGBA, sizeof(uint32_t), 0);
    acc.SpecularStream(src->fSpecularRGBA, sizeof(uint32_t), 0);
    acc.UVWStream(ptr, (uint16_t)sz, 0);
    acc.SetNumUVWs(src->CalcNumUVs(src->fFormat));

    acc.fVtxDeviceRef = nil;
}

void plAccessGeometry::IAccessSpanFromSpan(plAccessSpan& dst, plDrawableSpans* drawable, const plSpan* span, bool useSnap, bool readOnly) const
{
    dst.SetType(plAccessSpan::kUndefined);
    dst.SetSource(const_cast<plSpan*> (span));
    if( span->fTypeMask & plSpan::kIcicleSpan )
    {
        IAccessSpanFromIcicle(dst, drawable, (const plIcicle*)span, readOnly);
    }
    else if( span->fTypeMask & plSpan::kParticleSpan )
    {
        IAccessSpanFromParticle(dst, drawable, (const plParticleSpan*)span, readOnly);
    }
    if( useSnap )
    {
        IAccessSpanFromSnap(dst, drawable, span);
    }
}

void plAccessGeometry::IAccessSpanFromSnap(plAccessSpan& dst, plDrawableSpans* drawable, const plSpan* span) const
{
    plAccessVtxSpan& acc = dst.AccessVtx();
    if( span->fSnapShot )
    {
        span->fSnapShot->SetupChannels(acc);
    }
}

void plAccessGeometry::IAccessSpanFromVertexSpan(plAccessSpan& dst, plDrawableSpans* drawable, const plVertexSpan* span, bool readOnly) const
{
    dst.SetMaterial(drawable->GetMaterial(span->fMaterialIdx));

    plAccessVtxSpan& acc = dst.AccessVtx();
    
    plGBufferGroup* grp = drawable->GetBufferGroup(span->fGroupIdx);

//#define MF_TOSSER
#ifndef MF_TOSSER
    plConst(bool) useDev(false);
#else // MF_TOSSER
    plConst(bool) useDev(true);
#endif // MF_TOSSER
    if( useDev && !drawable->GetNativeProperty(plDrawable::kPropVolatile) && grp->GetVertexBufferRef(span->fVBufferIdx) )
    {
        fPipe->OpenAccess(dst, drawable, span, readOnly);
        return;
    }

    acc.fNumVerts = (uint16_t)(span->fVLength);

    plGBufferCell* cell = grp->GetCell(span->fVBufferIdx, span->fCellIdx);

    uint8_t* ptr = grp->GetVertBufferData(span->fVBufferIdx);

    // Interleaved
    if( cell->fColorStart == uint32_t(-1) )
    {
        uint32_t stride = grp->GetVertexSize();

        ptr += cell->fVtxStart + span->fCellOffset * stride;
        int32_t offset = (-(int32_t)(span->fVStartIdx)) * (int32_t)stride;

        acc.PositionStream(ptr, (uint16_t)stride, offset);
        ptr += sizeof(hsPoint3);

        int numWgts = grp->GetNumWeights();
        if( numWgts )
        {
            acc.SetNumWeights(numWgts);
            acc.WeightStream(ptr, (uint16_t)stride, offset);
            ptr += numWgts * sizeof(float);
            if( grp->GetVertexFormat() & plGBufferGroup::kSkinIndices )
            {
                acc.WgtIndexStream(ptr, (uint16_t)stride, offset);
                ptr += sizeof(uint32_t);
            }
            else
            {
                acc.WgtIndexStream(nil, 0, offset);
            }
        }
        else
        {
            acc.SetNumWeights(0);
        }

        acc.NormalStream(ptr, (uint16_t)stride, offset);
        ptr += sizeof(hsVector3);

        acc.DiffuseStream(ptr, (uint16_t)stride, offset);
        ptr += sizeof(uint32_t);

        acc.SpecularStream(ptr, (uint16_t)stride, offset);
        ptr += sizeof(uint32_t);

        acc.UVWStream(ptr, (uint16_t)stride, offset);

        acc.SetNumUVWs(grp->GetNumUVs());

    }
    else
    {
        uint32_t stride = grp->GetVertexLiteStride();

        ptr += cell->fVtxStart + span->fCellOffset * stride;
        int32_t posOffset = (-(int32_t)(span->fVStartIdx)) * (int32_t)stride;

        acc.PositionStream(ptr, (uint16_t)stride, posOffset);
        ptr += sizeof(hsPoint3);

        int numWgts = grp->GetNumWeights();
        if( numWgts )
        {
            acc.SetNumWeights(numWgts);
            acc.WeightStream(ptr, (uint16_t)stride, posOffset);
            ptr += numWgts * sizeof(float);
            if( grp->GetVertexFormat() & plGBufferGroup::kSkinIndices )
            {
                acc.WgtIndexStream(ptr, (uint16_t)stride, posOffset);
                ptr += sizeof(uint32_t);
            }
            else
            {
                acc.WgtIndexStream(nil, 0, 0);
            }
        }
        else
        {
            acc.SetNumWeights(0);
        }

        acc.NormalStream(ptr, (uint16_t)stride, posOffset);
        ptr += sizeof(hsVector3);

        plGBufferColor* col = grp->GetColorBufferData(span->fVBufferIdx) + cell->fColorStart;

        int16_t colOffset = (int16_t)((-(int32_t)(span->fVStartIdx)) * (int32_t)stride);
        colOffset = (int16_t)((-(int32_t)(span->fVStartIdx)) * sizeof(*col));

        acc.DiffuseStream(&col->fDiffuse, sizeof(*col), colOffset);

        acc.SpecularStream(&col->fSpecular, sizeof(*col), colOffset);

        acc.UVWStream(ptr, (uint16_t)stride, posOffset);

        acc.SetNumUVWs(grp->GetNumUVs());
    }

    acc.fVtxDeviceRef = nil;
}

void plAccessGeometry::IAccessConnectivity(plAccessSpan& dst, plDrawableSpans* drawable, const plSpan* src) const
{
    if( src->fTypeMask & plSpan::kIcicleSpan )
    {
        const plIcicle* span = (const plIcicle*)src;

        dst.SetType(plAccessSpan::kTri);

        plAccessTriSpan& acc = dst.AccessTri();
        
        acc.fNumTris = span->fILength / 3;
        plGBufferGroup* grp = drawable->GetBufferGroup(span->fGroupIdx);
        acc.fTris = grp->GetIndexBufferData(span->fIBufferIdx) + span->fIStartIdx;

        acc.fIdxDeviceRef = nil;
    }
    // Hmm, particle should probably go here...
    else 
    {
        dst.SetType(plAccessSpan::kVtx);
    }

}

void plAccessGeometry::IAccessSpanFromIcicle(plAccessSpan& dst, plDrawableSpans* drawable, const plIcicle* span, bool readOnly) const
{
    dst.SetType(plAccessSpan::kTri);

    plAccessTriSpan& acc = dst.AccessTri();
    
    IAccessSpanFromVertexSpan(dst, drawable, span, readOnly);
    
    acc.fNumTris = span->fILength / 3;
    plGBufferGroup* grp = drawable->GetBufferGroup(span->fGroupIdx);
    acc.fTris = grp->GetIndexBufferData(span->fIBufferIdx) + span->fIStartIdx;

    acc.fIdxDeviceRef = nil;
}

void plAccessGeometry::IAccessSpanFromParticle(plAccessSpan& dst, plDrawableSpans* drawable, const plParticleSpan* span, bool readOnly) const
{
    hsAssert(false, "Aint got to it yet");
    // dst.SetType(plAccessSpan::kParty);
}