void Blit::saveState() { IDirect3DDevice9 *device = getDevice(); HRESULT hr; device->GetDepthStencilSurface(&mSavedDepthStencil); device->GetRenderTarget(0, &mSavedRenderTarget); if (mSavedStateBlock == NULL) { hr = device->BeginStateBlock(); ASSERT(SUCCEEDED(hr) || hr == D3DERR_OUTOFVIDEOMEMORY || hr == E_OUTOFMEMORY); setCommonBlitState(); static const float dummyConst[4] = { 0, 0, 0, 0 }; device->SetVertexShader(NULL); device->SetVertexShaderConstantF(0, dummyConst, 1); device->SetPixelShader(NULL); device->SetPixelShaderConstantF(0, dummyConst, 1); D3DVIEWPORT9 dummyVp; dummyVp.X = 0; dummyVp.Y = 0; dummyVp.Width = 1; dummyVp.Height = 1; dummyVp.MinZ = 0; dummyVp.MaxZ = 1; device->SetViewport(&dummyVp); device->SetTexture(0, NULL); device->SetStreamSource(0, mQuadVertexBuffer, 0, 0); device->SetVertexDeclaration(mQuadVertexDeclaration); hr = device->EndStateBlock(&mSavedStateBlock); ASSERT(SUCCEEDED(hr) || hr == D3DERR_OUTOFVIDEOMEMORY || hr == E_OUTOFMEMORY); } ASSERT(mSavedStateBlock != NULL); if (mSavedStateBlock != NULL) { hr = mSavedStateBlock->Capture(); ASSERT(SUCCEEDED(hr)); } }