Method SaveTo

GTE/Applications/MSW/WICFileIONative.cpp:350–568

}

void WICFileIONative::SaveTo(std::string const& filename, uint32_t inFormat,
    size_t inWidth, size_t inHeight, uint8_t const* inTexels, float imageQuality)
{
    if (inFormat >= NUM_FORMATS)
    {
        throw std::runtime_error("The texture format is incorrect.");
    }

    if (inWidth == 0 || inHeight == 0 || inTexels == nullptr)
    {
        throw std::runtime_error("The texture and its data must exist.");
    }

    // Start COM and create WIC.
    ComInitializer comInitializer;
    if (!comInitializer.IsInitialized())
    {
        throw std::runtime_error("Unable to initialize COM for WIC.");
    }

    // Select the WIC format that matches the input texture format.
    WICPixelFormatGUID wicSourceGUID = GUID_WICPixelFormatUndefined;
    for (size_t i = 0; i < NUM_SAVE_FORMATS; ++i)
    {
        if (msSaveFormatMap[i].format == inFormat)
        {
            wicSourceGUID = *msSaveFormatMap[i].wicOutputGUID;
            break;
        }
    }
    if (IsEqualGUID(wicSourceGUID, GUID_WICPixelFormatUndefined))
    {
        throw std::runtime_error("Format " + std::to_string(inFormat) +
            "is not supported for saving.");
    }

    // Create a WIC imaging factory.
    ComObject<IWICImagingFactory> wicFactory;
    HRESULT hr = ::CoCreateInstance(CLSID_WICImagingFactory, nullptr,
        CLSCTX_INPROC_SERVER, IID_IWICImagingFactory,
        reinterpret_cast<LPVOID*>(wicFactory.GetAddressOf()));
    if (FAILED(hr))
    {
        throw std::runtime_error("Unable to create WIC imaging factory.");
    }

    // Create a WIC stream for output.
    ComObject<IWICStream> wicStream;
    hr = wicFactory->CreateStream(&wicStream);
    if (FAILED(hr))
    {
        throw std::runtime_error("wicFactory->CreateStream failed.");
    }

    std::wstring wfilename(filename.begin(), filename.end());
    hr = wicStream->InitializeFromFilename(wfilename.c_str(), GENERIC_WRITE);
    if (FAILED(hr))
    {