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#include "UnityPrefix.h"
#include "VertexDeclarationsD3D11.h"
#include "D3D11Context.h"
#include "D3D11ByteCode.h"
#include "D3D11Utils.h"
#include "Runtime/GfxDevice/GfxDeviceTypes.h"
#include "Runtime/Utilities/ArrayUtility.h"
#include "Runtime/Shaders/VBO.h"
extern ID3D11InputLayout* g_ActiveInputLayoutD3D11;
bool VertexDeclarationsD3D11::KeyType::operator < (const KeyType& rhs) const
{
if (inputSig != rhs.inputSig)
return inputSig < rhs.inputSig;
if (extraBits != rhs.extraBits)
return extraBits < rhs.extraBits;
return memcmp(channels, rhs.channels, sizeof(channels)) < 0;
}
VertexDeclarationsD3D11::VertexDeclarationsD3D11()
{
}
VertexDeclarationsD3D11::~VertexDeclarationsD3D11()
{
Clear();
}
static D3D11_INPUT_ELEMENT_DESC kChannelVertexElems[kShaderChannelCount] = {
// semantic name, semantic index, format, input slot, aligned byte offset, input slot class, instance data step rate
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "NORMAL", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 1, DXGI_FORMAT_R32G32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TANGENT", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
};
static const int kDefaultChannelSizes[kShaderChannelCount] = {
12, // position
12, // normal
4, // color
8, // uv
8, // uv2
16, // tangent
};
static const int kChannelSkinningCount = 2;
static D3D11_INPUT_ELEMENT_DESC kChannelSkinning4[kChannelSkinningCount] = {
// Stream 1
{ "BLENDWEIGHT", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 1, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "BLENDINDICES", 0, DXGI_FORMAT_R32G32B32A32_SINT, 1, 16, D3D11_INPUT_PER_VERTEX_DATA, 0 },
};
static D3D11_INPUT_ELEMENT_DESC kChannelSkinning2[kChannelSkinningCount] = {
// Stream 1
{ "BLENDWEIGHT", 0, DXGI_FORMAT_R32G32_FLOAT, 1, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "BLENDINDICES", 0, DXGI_FORMAT_R32G32_SINT, 1, 8, D3D11_INPUT_PER_VERTEX_DATA, 0 },
};
static D3D11_INPUT_ELEMENT_DESC kChannelSkinning1[kChannelSkinningCount] = {
// Stream 1
{ "BONEINDEX", 0, DXGI_FORMAT_R32_SINT, 1, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
};
static const D3D11_INPUT_ELEMENT_DESC kImmChannelVertexElems[] = {
// semantic name, semantic index, format, input slot, aligned byte offset, input slot class, instance data step rate
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "NORMAL", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 12, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, 24, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 28, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 1, DXGI_FORMAT_R32G32B32_FLOAT, 0, 40, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 2, DXGI_FORMAT_R32G32B32_FLOAT, 0, 52, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 3, DXGI_FORMAT_R32G32B32_FLOAT, 0, 64, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 4, DXGI_FORMAT_R32G32B32_FLOAT, 0, 76, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 5, DXGI_FORMAT_R32G32B32_FLOAT, 0, 88, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 6, DXGI_FORMAT_R32G32B32_FLOAT, 0,100, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 7, DXGI_FORMAT_R32G32B32_FLOAT, 0,112, D3D11_INPUT_PER_VERTEX_DATA, 0 },
// feed position as tangent0 data, just in case we use shaders that pretend to want tangents
{ "TANGENT", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
};
static FORCE_INLINE DXGI_FORMAT GetD3D11VertexDeclType(const ChannelInfo& info)
{
switch (info.format)
{
case kChannelFormatFloat:
{
switch (info.dimension)
{
case 1: return DXGI_FORMAT_R32_FLOAT;
case 2: return DXGI_FORMAT_R32G32_FLOAT;
case 3: return DXGI_FORMAT_R32G32B32_FLOAT;
case 4: return DXGI_FORMAT_R32G32B32A32_FLOAT;
}
break;
}
case kChannelFormatFloat16:
{
switch (info.dimension)
{
case 2: return DXGI_FORMAT_R16G16_FLOAT;
case 4: return DXGI_FORMAT_R16G16B16A16_FLOAT;
}
break;
}
case kChannelFormatColor:
{
return DXGI_FORMAT_R8G8B8A8_UNORM;
}
}
Assert("No matching D3D11 vertex decl type!");
return DXGI_FORMAT_UNKNOWN;
}
ID3D11InputLayout* VertexDeclarationsD3D11::GetVertexDecl( UInt32 shaderChannelsMap, void* vertexShaderCode, unsigned vertexShaderLength, bool memExportSkin, unsigned int bonesPerVertex)
{
ChannelInfoArray channels;
int offset = 0;
for (int i = 0; i < kShaderChannelCount; i++)
{
ChannelInfo& info = channels[i];
if (shaderChannelsMap & (1 << i))
{
info.stream = 0;
info.offset = offset;
info.format = VBO::GetDefaultChannelFormat( i );
info.dimension = VBO::GetDefaultChannelDimension( i );
offset += VBO::GetDefaultChannelByteSize( i );
}
else
info.Reset();
}
return GetVertexDecl( channels, GetShaderInputSignature(vertexShaderCode, vertexShaderLength), memExportSkin, bonesPerVertex );
}
ID3D11InputLayout* VertexDeclarationsD3D11::GetVertexDecl (const ChannelInfoArray& channels, const InputSignatureD3D11* inputSig, bool streamOutSkin, unsigned int bonesPerVertex)
{
if (!inputSig)
{
AssertString("DX11 shader input signature is null");
return NULL;
}
KeyType key;
memcpy(key.channels, channels, sizeof(key.channels));
key.extraBits = streamOutSkin ? bonesPerVertex : 0; // Set bones-per-vertex count for memExportSkin
key.inputSig = inputSig;
// already have vertex declaration for this format/shader?
VertexDeclMap::iterator it = m_VertexDeclMap.find (key);
if( it != m_VertexDeclMap.end() )
return it->second;
// don't have this declaration yet - create one
D3D11_INPUT_ELEMENT_DESC elements[kShaderChannelCount + kChannelSkinningCount];
int elIndex = 0;
for( int chan = 0; chan < kShaderChannelCount; chan++ )
{
DebugAssert(elIndex < kShaderChannelCount);
if (!channels[chan].IsValid() )
{
///@TODO: for now, hack in all shader channels to pretend to be there
elements[elIndex] = kChannelVertexElems[chan];
elements[elIndex].AlignedByteOffset = 0;
++elIndex;
continue;
}
elements[elIndex] = kChannelVertexElems[chan];
elements[elIndex].InputSlot = channels[chan].stream;
elements[elIndex].AlignedByteOffset = channels[chan].offset;
elements[elIndex].Format = GetD3D11VertexDeclType(channels[chan]);
++elIndex;
}
if (streamOutSkin) // Append extra elements required for streamout
{
switch(bonesPerVertex)
{
default:
case 1:
elements[elIndex] = kChannelSkinning1[0];
++elIndex;
break;
case 2:
for (int i = 0; i < kChannelSkinningCount; ++i)
{
elements[elIndex] = kChannelSkinning2[i];
++elIndex;
}
break;
case 4:
for (int i = 0; i < kChannelSkinningCount; ++i)
{
elements[elIndex] = kChannelSkinning4[i];
++elIndex;
}
break;
}
}
ID3D11InputLayout* decl = NULL;
HRESULT hr = GetD3D11Device()->CreateInputLayout (elements, elIndex, inputSig->blob.data(), inputSig->blob.size(), &decl );
if( FAILED(hr) ) {
AssertString ("Failed to create vertex declaration\n");
// TODO: error!
}
SetDebugNameD3D11 (decl, Format("InputLayout-%d", elIndex));
m_VertexDeclMap.insert( std::make_pair( key, decl ) );
return decl;
}
ID3D11InputLayout* VertexDeclarationsD3D11::GetImmVertexDecl (const InputSignatureD3D11* inputSig)
{
if (!inputSig)
{
AssertString("DX11 shader input signature is null");
return NULL;
}
// already have vertex declaration for this shader?
ImmVertexDeclMap::iterator it = m_ImmVertexDeclMap.find (inputSig);
if (it != m_ImmVertexDeclMap.end())
return it->second;
// don't have this declaration yet - create one
ID3D11InputLayout* decl = NULL;
HRESULT hr = GetD3D11Device()->CreateInputLayout (kImmChannelVertexElems,ARRAY_SIZE(kImmChannelVertexElems), inputSig->blob.data(), inputSig->blob.size(), &decl);
if (FAILED(hr))
{
AssertString ("Failed to create vertex declaration for GL.Begin\n");
// TODO: error!
}
SetDebugNameD3D11 (decl, "InputLayoutImmediate");
m_ImmVertexDeclMap.insert(std::make_pair(inputSig, decl));
return decl;
}
void VertexDeclarationsD3D11::Clear()
{
g_ActiveInputLayoutD3D11 = NULL;
for (VertexDeclMap::iterator it = m_VertexDeclMap.begin(); it != m_VertexDeclMap.end(); ++it)
{
if (it->second) {
ULONG refCount = it->second->Release();
AssertIf( refCount != 0 );
}
}
m_VertexDeclMap.clear();
for (ImmVertexDeclMap::iterator it = m_ImmVertexDeclMap.begin(); it != m_ImmVertexDeclMap.end(); ++it)
{
if (it->second) {
ULONG refCount = it->second->Release();
AssertIf( refCount != 0 );
}
}
m_ImmVertexDeclMap.clear();
}
const InputSignatureD3D11* VertexDeclarationsD3D11::GetShaderInputSignature (void* code, unsigned length)
{
DXBCChunkHeader* isigChunk = dxbc_find_chunk (code, length, kFOURCC_ISGN);
DebugAssert (isigChunk);
if (!isigChunk)
return NULL;
InputSignatureD3D11 isig;
dxbc_create (&isigChunk, 1, isig.blob);
InputSignatures::iterator it = m_InputSignatures.insert(isig).first;
return &(*it);
}
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