read_host_pixels()

void MayaFlux::Buffers::DataReadProcessor::read_host_pixels

(

)

Read the host pixel data a TextureBuffer retains.

Definition at line 199 of file DataReadProcessor.cpp.

{
    arm([](DataReadProcessor&, const std::shared_ptr<VKBuffer>& vk, PendingRead& pending) {
        const auto texture = std::dynamic_pointer_cast<TextureBuffer>(vk);
        if (!texture || texture->get_pixel_data().empty()) {
            MF_RT_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
                "DataReadProcessor requires host pixel data for a host pixel read");
            return false;
        }
 
        const auto format = texture->get_format();
        pending.image = Kakshya::ImageData::from_bytes(
            texture->get_width(), texture->get_height(),
            Portal::Graphics::TextureLoom::get_channel_count(format),
            format, texture->get_pixel_data());
        if (!pending.image) {
            MF_RT_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
                "DataReadProcessor host pixel data does not match the texture's format and size");
            return false;
        }
        return true;
    });
}

References arm(), MayaFlux::Journal::BufferProcessing, MayaFlux::Journal::Buffers, format, MayaFlux::Kakshya::ImageData::from_bytes(), MayaFlux::Portal::Graphics::TextureLoom::get_channel_count(), MayaFlux::Buffers::DataReadProcessor::PendingRead::image, and MF_RT_ERROR.

Referenced by MayaFlux::Kriya::detail::arm_graphics_read().

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