HRESULT Graphics::createVertexBuffer(VertexC verts[], UINT size, LP_VERTEXBUFFER &vertexBuffer)
{
HRESULT result = E_FAIL;
result = device3d->CreateVertexBuffer(size, D3DUSAGE_WRITEONLY, D3DFVF_VERTEX,
D3DPOOL_DEFAULT, &vertexBuffer, NULL);
if(FAILED(result))
return result;
void *ptr;
result = vertexBuffer->Lock(0, size, (void**)&ptr, 0);
if(FAILED(result))
return result;
memcpy(ptr, verts, size);
vertexBuffer->Unlock();
return result;
}
//=============================================================================
// Create a vertex buffer.
// Pre: verts[] contains vertex data.
// size = size of verts[]
// Post: &vertexBuffer points to buffer if successful.
//=============================================================================
HRESULT Graphics::createVertexBuffer(VertexC verts[], UINT size, LP_VERTEXBUFFER &vertexBuffer)
{
// Standard Windows return value
HRESULT result = E_FAIL;
// Create a vertex buffer
result = device3d->CreateVertexBuffer(size, D3DUSAGE_WRITEONLY, D3DFVF_VERTEX,
D3DPOOL_DEFAULT, &vertexBuffer, NULL);
if(FAILED(result))
return result;
void *ptr;
// must lock buffer before data can be transferred in
result = vertexBuffer->Lock(0, size, (void**)&ptr, 0);
if(FAILED(result))
return result;
memcpy(ptr, verts, size); // copy vertex data into buffer
vertexBuffer->Unlock(); // unlock buffer
return result;
}
