PortableVertexFormat: add a struct which hold all needed information for every vertex and use this for position

atm, position attribute is hardcoded both in VertexLoader and in backends.

v2: fix coding style + cleanup lookup table
This commit is contained in:
degasus
2014-01-24 14:46:05 +01:00
parent 02d1d8e6a0
commit 210f4f3e55
4 changed files with 58 additions and 33 deletions

View File

@ -32,33 +32,27 @@ NativeVertexFormat* VertexManager::CreateNativeVertexFormat()
return new D3DVertexFormat();
}
DXGI_FORMAT VarToD3D(VarType t, int size)
static const DXGI_FORMAT d3d_format_lookup[5*4*2] =
{
DXGI_FORMAT retval = DXGI_FORMAT_UNKNOWN;
static const DXGI_FORMAT lookup1[5] = {
DXGI_FORMAT_R8_UNORM, DXGI_FORMAT_R8_SNORM, DXGI_FORMAT_R16_UNORM, DXGI_FORMAT_R16_SNORM, DXGI_FORMAT_R32_FLOAT
};
static const DXGI_FORMAT lookup2[5] = {
DXGI_FORMAT_R8G8_UNORM, DXGI_FORMAT_R8G8_SNORM, DXGI_FORMAT_R16G16_UNORM, DXGI_FORMAT_R16G16_SNORM, DXGI_FORMAT_R32G32_FLOAT
};
static const DXGI_FORMAT lookup3[5] = {
DXGI_FORMAT_UNKNOWN, DXGI_FORMAT_UNKNOWN, DXGI_FORMAT_UNKNOWN, DXGI_FORMAT_UNKNOWN, DXGI_FORMAT_R32G32B32_FLOAT
};
static const DXGI_FORMAT lookup4[5] = {
DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_FORMAT_R8G8B8A8_SNORM, DXGI_FORMAT_R16G16B16A16_UNORM, DXGI_FORMAT_R16G16B16A16_SNORM, DXGI_FORMAT_R32G32B32A32_FLOAT
};
// 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,
switch (size)
{
case 1: retval = lookup1[t]; break;
case 2: retval = lookup2[t]; break;
case 3: retval = lookup3[t]; break;
case 4: retval = lookup4[t]; break;
default: break;
}
// 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", (int)t, size);
PanicAlert("VarToD3D: Invalid type/size combo %i , %i, %i", (int)t, size, (int)integer);
}
return retval;
}
@ -67,12 +61,16 @@ 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;
m_elems[m_num_elems].SemanticName = "POSITION";
m_elems[m_num_elems].AlignedByteOffset = 0;
m_elems[m_num_elems].Format = DXGI_FORMAT_R32G32B32_FLOAT;
m_elems[m_num_elems].InputSlotClass = D3D11_INPUT_PER_VERTEX_DATA;
++m_num_elems;
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++)
{
@ -81,7 +79,7 @@ void D3DVertexFormat::Initialize(const PortableVertexDeclaration &_vtx_decl)
m_elems[m_num_elems].SemanticName = "NORMAL";
m_elems[m_num_elems].SemanticIndex = i;
m_elems[m_num_elems].AlignedByteOffset = _vtx_decl.normal_offset[i];
m_elems[m_num_elems].Format = VarToD3D(_vtx_decl.normal_gl_type, _vtx_decl.normal_gl_size);
m_elems[m_num_elems].Format = VarToD3D(_vtx_decl.normal_gl_type, _vtx_decl.normal_gl_size, false);
m_elems[m_num_elems].InputSlotClass = D3D11_INPUT_PER_VERTEX_DATA;
++m_num_elems;
}
@ -94,7 +92,7 @@ void D3DVertexFormat::Initialize(const PortableVertexDeclaration &_vtx_decl)
m_elems[m_num_elems].SemanticName = "COLOR";
m_elems[m_num_elems].SemanticIndex = i;
m_elems[m_num_elems].AlignedByteOffset = _vtx_decl.color_offset[i];
m_elems[m_num_elems].Format = VarToD3D(_vtx_decl.color_gl_type, 4);
m_elems[m_num_elems].Format = VarToD3D(_vtx_decl.color_gl_type, 4, false);
m_elems[m_num_elems].InputSlotClass = D3D11_INPUT_PER_VERTEX_DATA;
++m_num_elems;
}
@ -107,7 +105,7 @@ void D3DVertexFormat::Initialize(const PortableVertexDeclaration &_vtx_decl)
m_elems[m_num_elems].SemanticName = "TEXCOORD";
m_elems[m_num_elems].SemanticIndex = i;
m_elems[m_num_elems].AlignedByteOffset = _vtx_decl.texcoord_offset[i];
m_elems[m_num_elems].Format = VarToD3D(_vtx_decl.texcoord_gl_type[i], _vtx_decl.texcoord_size[i]);
m_elems[m_num_elems].Format = VarToD3D(_vtx_decl.texcoord_gl_type[i], _vtx_decl.texcoord_size[i], false);
m_elems[m_num_elems].InputSlotClass = D3D11_INPUT_PER_VERTEX_DATA;
++m_num_elems;
}