Method loadFromMemory

src/SFML/Graphics/Image.cpp:320–358

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bool Image::loadFromMemory(const void* data, std::size_t size)
{
    // Check input parameters
    if (data && size)
    {
        // Check if the buffer contains a QOI image
        const auto* qoiMagicNumBuffer = static_cast<const char*>(data);
        if (isQoiMagicNumber(std::string_view(qoiMagicNumBuffer, size)))
        {
            qoi_desc formatDesc = {};
            if (const auto ptr = MallocPtr(qoi_decode(data, static_cast<int>(size), &formatDesc, 4)))
            {
                const Vector2u imageSize = {formatDesc.width, formatDesc.height};
                resize(imageSize, static_cast<const uint8_t*>(ptr.get()));
                return true;
            }
        }

        // If we can't load it as a QOI file, we fall back to using STBI
        // Load the image and get a pointer to the pixels in memory
        Vector2i    imageSize;
        int         channels = 0;
        const auto* buffer   = static_cast<const unsigned char*>(data);
        if (const auto ptr = StbPtr(
                stbi_load_from_memory(buffer, static_cast<int>(size), &imageSize.x, &imageSize.y, &channels, STBI_rgb_alpha)))
        {
            resize(Vector2u(imageSize), ptr.get());
            return true;
        }

        // Error, failed to load the image
        err() << "Failed to load image from memory. Reason: " << stbi_failure_reason() << std::endl;

        return false;
    }

    err() << "Failed to load image from memory, no data provided" << std::endl;
    return false;
}


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