dolphin/Source/Core/VideoBackends/D3D/NativeVertexFormat.cpp

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// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#include "VideoBackends/D3D/D3DBase.h"
#include "VideoBackends/D3D/D3DBlob.h"
#include "VideoBackends/D3D/VertexManager.h"
#include "VideoBackends/D3D/VertexShaderCache.h"
#include "VideoCommon/NativeVertexFormat.h"
namespace DX11
{
class D3DVertexFormat : public NativeVertexFormat
{
D3D11_INPUT_ELEMENT_DESC m_elems[32];
UINT m_num_elems;
DX11::D3DBlob* m_vs_bytecode;
ID3D11InputLayout* m_layout;
public:
D3DVertexFormat() : m_num_elems(0), m_vs_bytecode(NULL), m_layout(NULL) {}
~D3DVertexFormat() { SAFE_RELEASE(m_vs_bytecode); SAFE_RELEASE(m_layout); }
void Initialize(const PortableVertexDeclaration &_vtx_decl);
void SetupVertexPointers();
};
NativeVertexFormat* VertexManager::CreateNativeVertexFormat()
{
return new D3DVertexFormat();
}
static const DXGI_FORMAT d3d_format_lookup[5*4*2] =
{
// float formats
DXGI_FORMAT_R8_UNORM, DXGI_FORMAT_R8_SNORM, DXGI_FORMAT_R16_UNORM, DXGI_FORMAT_R16_SNORM, DXGI_FORMAT_R32_FLOAT,
DXGI_FORMAT_R8G8_UNORM, DXGI_FORMAT_R8G8_SNORM, DXGI_FORMAT_R16G16_UNORM, DXGI_FORMAT_R16G16_SNORM, DXGI_FORMAT_R32G32_FLOAT,
DXGI_FORMAT_UNKNOWN, DXGI_FORMAT_UNKNOWN, DXGI_FORMAT_UNKNOWN, DXGI_FORMAT_UNKNOWN, DXGI_FORMAT_R32G32B32_FLOAT,
DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_FORMAT_R8G8B8A8_SNORM, DXGI_FORMAT_R16G16B16A16_UNORM, DXGI_FORMAT_R16G16B16A16_SNORM, DXGI_FORMAT_R32G32B32A32_FLOAT,
// integer formats
DXGI_FORMAT_R8_UINT, DXGI_FORMAT_R8_SINT, DXGI_FORMAT_R16_UINT, DXGI_FORMAT_R16_SINT, DXGI_FORMAT_UNKNOWN,
DXGI_FORMAT_R8G8_UINT, DXGI_FORMAT_R8G8_SINT, DXGI_FORMAT_R16G16_UINT, DXGI_FORMAT_R16G16_SINT, DXGI_FORMAT_UNKNOWN,
DXGI_FORMAT_UNKNOWN, DXGI_FORMAT_UNKNOWN, DXGI_FORMAT_UNKNOWN, DXGI_FORMAT_UNKNOWN, DXGI_FORMAT_UNKNOWN,
DXGI_FORMAT_R8G8B8A8_UINT, DXGI_FORMAT_R8G8B8A8_SINT, DXGI_FORMAT_R16G16B16A16_UINT, DXGI_FORMAT_R16G16B16A16_SINT, DXGI_FORMAT_UNKNOWN,
};
DXGI_FORMAT VarToD3D(VarType t, int size, bool integer)
{
DXGI_FORMAT retval = d3d_format_lookup[(int)t + 5*(size-1) + 5*4*(int)integer];
if (retval == DXGI_FORMAT_UNKNOWN)
{
PanicAlert("VarToD3D: Invalid type/size combo %i , %i, %i", (int)t, size, (int)integer);
}
return retval;
}
void D3DVertexFormat::Initialize(const PortableVertexDeclaration &_vtx_decl)
{
vertex_stride = _vtx_decl.stride;
memset(m_elems, 0, sizeof(m_elems));
const AttributeFormat* format = &_vtx_decl.position;
if (format->enable)
{
m_elems[m_num_elems].SemanticName = "POSITION";
m_elems[m_num_elems].AlignedByteOffset = format->offset;
m_elems[m_num_elems].Format = VarToD3D(format->type, format->components, format->integer);
m_elems[m_num_elems].InputSlotClass = D3D11_INPUT_PER_VERTEX_DATA;
++m_num_elems;
}
for (int i = 0; i < 3; i++)
{
format = &_vtx_decl.normals[i];
if (format->enable)
{
m_elems[m_num_elems].SemanticName = "NORMAL";
m_elems[m_num_elems].SemanticIndex = i;
m_elems[m_num_elems].AlignedByteOffset = format->offset;
m_elems[m_num_elems].Format = VarToD3D(format->type, format->components, format->integer);
m_elems[m_num_elems].InputSlotClass = D3D11_INPUT_PER_VERTEX_DATA;
++m_num_elems;
}
}
for (int i = 0; i < 2; i++)
{
format = &_vtx_decl.colors[i];
if (format->enable)
{
m_elems[m_num_elems].SemanticName = "COLOR";
m_elems[m_num_elems].SemanticIndex = i;
m_elems[m_num_elems].AlignedByteOffset = format->offset;
m_elems[m_num_elems].Format = VarToD3D(format->type, format->components, format->integer);
m_elems[m_num_elems].InputSlotClass = D3D11_INPUT_PER_VERTEX_DATA;
++m_num_elems;
}
}
for (int i = 0; i < 8; i++)
{
format = &_vtx_decl.texcoords[i];
if (format->enable)
{
m_elems[m_num_elems].SemanticName = "TEXCOORD";
m_elems[m_num_elems].SemanticIndex = i;
m_elems[m_num_elems].AlignedByteOffset = format->offset;
m_elems[m_num_elems].Format = VarToD3D(format->type, format->components, format->integer);
m_elems[m_num_elems].InputSlotClass = D3D11_INPUT_PER_VERTEX_DATA;
++m_num_elems;
}
}
format = &_vtx_decl.posmtx;
if (format->enable)
{
m_elems[m_num_elems].SemanticName = "BLENDINDICES";
m_elems[m_num_elems].AlignedByteOffset = format->offset;
m_elems[m_num_elems].Format = VarToD3D(format->type, format->components, format->integer);
m_elems[m_num_elems].InputSlotClass = D3D11_INPUT_PER_VERTEX_DATA;
++m_num_elems;
}
}
void D3DVertexFormat::SetupVertexPointers()
{
if (m_vs_bytecode != DX11::VertexShaderCache::GetActiveShaderBytecode())
{
SAFE_RELEASE(m_vs_bytecode);
SAFE_RELEASE(m_layout);
m_vs_bytecode = DX11::VertexShaderCache::GetActiveShaderBytecode();
m_vs_bytecode->AddRef();
HRESULT hr = DX11::D3D::device->CreateInputLayout(m_elems, m_num_elems, m_vs_bytecode->Data(), m_vs_bytecode->Size(), &m_layout);
if (FAILED(hr)) PanicAlert("Failed to create input layout, %s %d\n", __FILE__, __LINE__);
DX11::D3D::SetDebugObjectName((ID3D11DeviceChild*)m_layout, "input layout used to emulate the GX pipeline");
}
DX11::D3D::context->IASetInputLayout(m_layout);
}
} // namespace DX11