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#include "UnityPrefix.h"
#include "MeshSkinning.h"
#if UNITY_OSX
#include <alloca.h> // this is really deprecated and should be exchanged for stdlib.h
#else
#include <stdlib.h>
#endif
#include "Runtime/Utilities/Utility.h"
#include "Runtime/Utilities/LogAssert.h"
#include "Runtime/Utilities/OptimizationUtility.h"
#include "Runtime/Misc/Allocator.h"
#include "Runtime/Utilities/Prefetch.h"
#include "Runtime/Profiler/TimeHelper.h"
#include "Runtime/Profiler/Profiler.h"
#include "Runtime/Misc/CPUInfo.h"
#include "Runtime/Allocator/MemoryMacros.h"
#include "Runtime/Filters/Mesh/LodMesh.h"
PROFILER_INFORMATION(gMeshSkinningProfile, "MeshSkinning.Skin", kProfilerRender)
PROFILER_INFORMATION(gMeshSkinningSlowpath, "MeshSkinning.SlowPath", kProfilerRender)
#include "MeshSkinningMobile.h"
#include "MeshSkinningSSE2.h"
#include "SkinGeneric.h"
#include "MeshBlendShaping.h"
//===========================================================================================================================================
void SkinMesh(SkinMeshInfo& info)
{
const TransformInstruction NormalizeTransformInstruction =
#if (UNITY_SUPPORTS_NEON && !UNITY_DISABLE_NEON_SKINNING) || UNITY_SUPPORTS_VFP
// NOTE: optimized NEON/VFP routines do not do any normalization
// instead we rely on GPU to do that
kNoNormalize;
#else
//@TODO: fix that "Fast" & "Fastest" crap. Right now "Fastest" is actually a win on PC (1ms saved in Dark Unity)
// so I'm leaving it there for now.
kNormalizeFastest;
#endif
// Instantiates the right skinning template depending on the bone per vertex count
#define PERMUTE_BONES(skinNormal,skinTangent) { \
if (info.bonesPerVertex == 1) \
SkinGeneric<NormalizeTransformInstruction, 1, skinNormal, skinTangent> (info); \
else if (info.bonesPerVertex == 2) \
SkinGeneric<NormalizeTransformInstruction, 2, skinNormal, skinTangent> (info); \
else if (info.bonesPerVertex == 4) \
SkinGeneric<NormalizeTransformInstruction, 4, skinNormal, skinTangent> (info); \
}
if (info.skinNormals && info.skinTangents)
PERMUTE_BONES(true, true)
else if (info.skinNormals)
PERMUTE_BONES(true, false)
else
PERMUTE_BONES(false, false)
}
static void ApplyMeshSkinning (SkinMeshInfo& info)
{
#if UNITY_WII
SkinMeshWii(info);
#else
PROFILER_AUTO(gMeshSkinningProfile, NULL);
if (SkinMeshOptimizedMobile(info))
return;
if (SkinMeshOptimizedSSE2(info))
return;
// fallback to slow generic implementation
{
PROFILER_AUTO(gMeshSkinningSlowpath, NULL);
SkinMesh(info);
}
#endif
}
void DeformSkinnedMesh (SkinMeshInfo& info)
{
const bool hasBlendShapes = info.blendshapeCount != 0;
const bool hasSkin = info.boneCount != 0;
// No actual skinning can be done. Just copy vertex stream.
// TODO: This code can be removed if we render the undeformed mesh in SkinnedMeshRenderer
// when there is no skin and no active blend shapes. See case 557165.
if (!hasBlendShapes && !hasSkin)
{
memcpy (info.outVertices, info.inVertices, info.inStride * info.vertexCount);
return;
}
UInt8* tmpBlendShapes = NULL;
// blend shapes
if (hasBlendShapes)
{
// The final destination might be write-combined memory which is insanely slow to read
// or randomly access, so always allocate a temp buffer for blend shapes (case 554830).
// Skinning can write directly to a VB since it always writes sequentially to memory.
size_t bufferSize = info.inStride * info.vertexCount;
tmpBlendShapes = ALLOC_TEMP_MANUAL(UInt8, bufferSize);
ApplyBlendShapes (info, tmpBlendShapes);
if (hasSkin)
info.inVertices = tmpBlendShapes;
else
memcpy(info.outVertices, tmpBlendShapes, bufferSize);
}
// skinning
if (hasSkin)
ApplyMeshSkinning (info);
if (tmpBlendShapes)
FREE_TEMP_MANUAL(tmpBlendShapes);
}
void* DeformSkinnedMeshJob (void* rawData)
{
SkinMeshInfo* data = reinterpret_cast<SkinMeshInfo*>(rawData);
DeformSkinnedMesh (*data);
return NULL;
}
SkinMeshInfo::SkinMeshInfo()
{
memset(this, 0, sizeof(SkinMeshInfo));
}
void SkinMeshInfo::Allocate()
{
size_t size = boneCount * sizeof(Matrix4x4f) + sizeof(float) * blendshapeCount;
if (size == 0)
return;
allocatedBuffer = (UInt8*)UNITY_MALLOC_ALIGNED(kMemSkinning, size, 64);
UInt8* head = allocatedBuffer;
if (boneCount != 0)
{
cachedPose = reinterpret_cast<Matrix4x4f*> (head);
head += sizeof(Matrix4x4f) * boneCount;
}
if (blendshapeCount != 0)
{
blendshapeWeights = reinterpret_cast<float*> (head);
}
}
void SkinMeshInfo::Release() const
{
if (allocatedBuffer)
UNITY_FREE(kMemSkinning, allocatedBuffer);
}
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