bool CDXVAContext::CreateSurfaces(D3D11_VIDEO_DECODER_DESC format, unsigned int count, unsigned int alignment, ID3D11VideoDecoderOutputView **surfaces) const
{
HRESULT hr = S_OK;
ID3D11Device* pDevice = g_Windowing.Get3D11Device();
ID3D11DeviceContext1* pContext = g_Windowing.GetImmediateContext();
unsigned bindFlags = D3D11_BIND_DECODER;
if (g_Windowing.IsFormatSupport(format.OutputFormat, D3D11_FORMAT_SUPPORT_SHADER_SAMPLE))
bindFlags |= D3D11_BIND_SHADER_RESOURCE;
CD3D11_TEXTURE2D_DESC texDesc(format.OutputFormat,
FFALIGN(format.SampleWidth, alignment),
FFALIGN(format.SampleHeight, alignment),
count, 1, bindFlags);
ID3D11Texture2D *texture = nullptr;
if (FAILED(pDevice->CreateTexture2D(&texDesc, NULL, &texture)))
{
CLog::LogF(LOGERROR, "failed creating decoder texture array.");
return false;
}
D3D11_VIDEO_DECODER_OUTPUT_VIEW_DESC vdovDesc;
vdovDesc.DecodeProfile = format.Guid;
vdovDesc.Texture2D.ArraySlice = 0;
vdovDesc.ViewDimension = D3D11_VDOV_DIMENSION_TEXTURE2D;
float clearColor[] = { 0.0625f, 0.5f, 0.5f, 1.0f }; // black color in YUV
size_t i;
for (i = 0; i < count; ++i)
{
vdovDesc.Texture2D.ArraySlice = D3D11CalcSubresource(0, i, texDesc.MipLevels);
hr = m_service->CreateVideoDecoderOutputView(texture, &vdovDesc, &surfaces[i]);
if (FAILED(hr))
{
CLog::LogF(LOGERROR, "failed creating surfaces.");
break;
}
pContext->ClearView(surfaces[i], clearColor, nullptr, 0);
}
SAFE_RELEASE(texture);
if (FAILED(hr))
{
for (size_t j = 0; j < i; ++j)
SAFE_RELEASE(surfaces[j]);
}
return SUCCEEDED(hr);
}
