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d3dx9: Introduce helper functions to operate on constant handles.

This commit is contained in:
Józef Kucia 2012-08-14 11:42:30 +02:00 committed by Alexandre Julliard
parent 93a2de1fba
commit c9f9025633
1 changed files with 22 additions and 9 deletions
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31
dlls/d3dx9_36/shader.c
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@ -657,6 +657,21 @@ static DWORD calc_bytes(D3DXCONSTANT_DESC *desc)
return 4 * desc->Elements * desc->Rows * desc->Columns;
}
static inline int is_constant_handle(D3DXHANDLE handle)
{
return !((UINT_PTR)handle >> 16);
}
static inline ctab_constant *constant_from_handle(struct ID3DXConstantTableImpl *table, D3DXHANDLE handle)
{
return &table->constants[(UINT_PTR)handle - 1];
}
static inline D3DXHANDLE handle_from_constant_index(UINT index)
{
return (D3DXHANDLE)(DWORD_PTR)(index + 1);
}
/*** IUnknown methods ***/
static HRESULT WINAPI ID3DXConstantTableImpl_QueryInterface(ID3DXConstantTable *iface, REFIID riid, void **out)
{
@ -747,17 +762,15 @@ static HRESULT WINAPI ID3DXConstantTableImpl_GetConstantDesc(ID3DXConstantTable
return D3DERR_INVALIDCALL;
/* Applications can pass the name of the constant in place of the handle */
if (!((UINT_PTR)constant >> 16))
constant_info = &This->constants[(UINT_PTR)constant - 1];
else
if (!is_constant_handle(constant))
{
D3DXHANDLE c = ID3DXConstantTable_GetConstantByName(iface, NULL, constant);
if (!c)
constant = ID3DXConstantTable_GetConstantByName(iface, NULL, constant);
if (!constant)
return D3DERR_INVALIDCALL;
constant_info = &This->constants[(UINT_PTR)c - 1];
}
constant_info = constant_from_handle(This, constant);
if (desc)
*desc = constant_info->desc;
if (count)
@ -800,7 +813,7 @@ static D3DXHANDLE WINAPI ID3DXConstantTableImpl_GetConstant(ID3DXConstantTable *
if (index >= This->desc.Constants)
return NULL;
return (D3DXHANDLE)(DWORD_PTR)(index + 1);
return handle_from_constant_index(index);
}
static D3DXHANDLE WINAPI ID3DXConstantTableImpl_GetConstantByName(ID3DXConstantTable *iface, D3DXHANDLE constant, LPCSTR name)
@ -821,7 +834,7 @@ static D3DXHANDLE WINAPI ID3DXConstantTableImpl_GetConstantByName(ID3DXConstantT
for (i = 0; i < This->desc.Constants; i++)
if (!strcmp(This->constants[i].desc.Name, name))
return (D3DXHANDLE)(DWORD_PTR)(i + 1);
return handle_from_constant_index(i);
return NULL;
}