C++ (Cpp) IDirect3DDevice9::BeginStateBlock Examples

Example #1

File: Blit.cpp Project: smoogipooo/angle-fullscreen

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));
    }
}