//--------------------------------------------------------------------------------------
// Name: SetVertexShader()
// Desc: Overloaded function to avoid redundant calls to D3D
//--------------------------------------------------------------------------------------
D3DVOID WINAPI D3DDevice::SetVertexShader( D3DVertexShader* pShader )
{
static D3DVertexShader* g_pShader = NULL;
// Synchronize with current D3D device state, to catch subsystems that do not go
// through this codepath
D3DVertexShader* pCurrentVS = NULL;
D3DDevice_GetVertexShader( this, &pCurrentVS );
g_pShader = pCurrentVS;
if( pCurrentVS != NULL )
pCurrentVS->Release();
// Only update shader if it has changed
if( g_pShader != pShader )
{
D3DDevice_SetVertexShader( this, pShader );
g_pShader = pShader;
}
D3DVOIDRETURN;
}
Burger::Effect::~Effect()
{
D3DPixelShader *pPixelShader = m_pPixelShader;
if (pPixelShader != NULL) {
IDirect3DDevice9 *pDevice;
pPixelShader->GetDevice(&pDevice);
if (pDevice) {
pDevice->SetPixelShader(0);
}
pPixelShader->Release();
m_pPixelShader = NULL;
}
D3DVertexShader *pVertexShader = m_pVertexShader;
if (pVertexShader != NULL) {
IDirect3DDevice9 *pDevice;
pVertexShader->GetDevice(&pDevice);
if (pDevice) {
pDevice->SetVertexShader(0);
}
pVertexShader->Release();
m_pVertexShader = NULL;
}
}