Method GetAlignmentSize

Source/DX11VideoProcessor.cpp:2055–2141

}

BOOL CDX11VideoProcessor::GetAlignmentSize(const CMediaType& mt, SIZE& Size)
{
	if (VerifyMediaType(&mt)) {
		const auto& FmtParams = GetFmtConvParams(&mt);

		if (FmtParams.cformat == CF_RGB24) {
			Size.cx = ALIGN(Size.cx, 4);
		}
		else if (FmtParams.cformat == CF_RGB48 || FmtParams.cformat == CF_BGR48) {
			Size.cx = ALIGN(Size.cx, 2);
		}
		else if (FmtParams.cformat == CF_BGRA64 || FmtParams.cformat == CF_B64A) {
			// nothing
		}
		else {
			auto pBIH = GetBIHfromVIHs(&mt);
			if (!pBIH) {
				return FALSE;
			}

			auto biWidth = pBIH->biWidth;
			auto biHeight = labs(pBIH->biHeight);

			if (!m_Alignment.cx || m_Alignment.cformat != FmtParams.cformat
					|| m_Alignment.texture.desc.Width != biWidth || m_Alignment.texture.desc.Height != biHeight) {
				m_Alignment.texture.Release();
				m_Alignment.cformat = {};
				m_Alignment.cx = {};
			}

			if (!m_Alignment.texture.pTexture) {
				auto VP11Format = FmtParams.VP11Format;
				if (VP11Format != DXGI_FORMAT_UNKNOWN) {
					bool disableD3D11VP = false;
					switch (FmtParams.cformat) {
						case CF_NV12: disableD3D11VP = !m_VPFormats.bNV12;  break;
						case CF_P010:
						case CF_P016: disableD3D11VP = !m_VPFormats.bP01x;  break;
						case CF_YUY2: disableD3D11VP = !m_VPFormats.bYUY2;  break;
						default:      disableD3D11VP = !m_VPFormats.bOther; break;
					}
					if (disableD3D11VP) {
						VP11Format = DXGI_FORMAT_UNKNOWN;
					}
				}

				HRESULT hr = E_FAIL;
				if (VP11Format != DXGI_FORMAT_UNKNOWN) {
					hr = m_Alignment.texture.Create(m_pDevice, VP11Format, biWidth, biHeight, Tex2D_DynamicShaderWriteNoSRV);
				}
				if (FAILED(hr) && FmtParams.DX11Format != DXGI_FORMAT_UNKNOWN) {
					hr = m_Alignment.texture.CreateEx(m_pDevice, FmtParams.DX11Format, FmtParams.pDX11Planes, biWidth, biHeight, Tex2D_DynamicShaderWrite);
				}
				if (FAILED(hr)) {
					return FALSE;
				}

				UINT RowPitch = 0;