Function LoadImages

tools/cli/NtcCommandLine.cpp:701–1353

}

ntc::ITextureSet* LoadImages(ntc::IContext* context, Manifest& manifest, bool manifestIsGenerated)
{
    ntc::TextureSetDesc textureSetDesc{};
    textureSetDesc.mips = 1;

    ntc::LatentShape latentShape;
    if (!PickLatentShape(latentShape))
        return nullptr;

    // Count the number of MIP 0 images in the manifest
    int numMipZeroImages = 0;
    for (auto const& entry : manifest.textures)
    {
        if (entry.mipLevel == 0)
            ++numMipZeroImages;
    }

    if (numMipZeroImages > NTC_MAX_CHANNELS)
    {
        if (g_options.loadImagesPath)
        {
            fprintf(stderr, "Too many images (%d) found in the input folder. At most %d channels are supported.\n"
                "Note: when loading images from a folder, a single material with all images is created. "
                "To load a material with only some images from a folder, use manifest files or specify each image "
                "on the command line separately.",
                int(manifest.textures.size()), NTC_MAX_CHANNELS);
        }
        else
        {
            fprintf(stderr, "Too many images (%d) specified in the manifest. At most %d channels are supported.\n",
                int(manifest.textures.size()), NTC_MAX_CHANNELS);
        }
        return nullptr;
    }

    struct SourceImageData
    {
        int width = 0;
        int height = 0;
        int channels = 0;
        int storedChannels = 0;
        int alphaMaskChannel = -1;
        int firstChannel = -1;
        int manifestIndex = 0;
        bool verticalFlip = false;
        std::string channelSwizzle;
        std::array<stbi_uc*, NTC_MAX_MIPS> data {};
        std::string name;
        ntc::ChannelFormat channelFormat = ntc::ChannelFormat::UNORM8;
        ntc::BlockCompressedFormat bcFormat = ntc::BlockCompressedFormat::None;
        bool isSRGB = false;
        std::vector<float> lossFunctionScales;

        SourceImageData()
        { }

        SourceImageData(SourceImageData& other) = delete;
        SourceImageData(SourceImageData&& other) = delete;