infer_dimensions_from_parameters()

void MayaFlux::Core::VKImage::infer_dimensions_from_parameters ( )

private

Infer Kakshya::DataDimension entries from image parameters.

Uses current modality, dimensions, and format to populate m_dimensions so processors and UI code can reason about the image layout.

Definition at line 209 of file VKImage.cpp.

{
    using namespace Kakshya;
 
    m_dimensions.clear();
 
    switch (m_type) {
    case Type::TYPE_1D:
        m_dimensions.push_back(DataDimension::spatial_1d(m_width));
        break;
 
    case Type::TYPE_2D:
        m_dimensions.push_back(DataDimension::spatial_2d(m_width, m_height));
        break;
 
    case Type::TYPE_3D:
        m_dimensions.push_back(DataDimension::spatial_3d(m_width, m_height, m_depth));
        break;
 
    case Type::TYPE_CUBE:
        m_dimensions.push_back(DataDimension::grouped("cubemap_faces", 6, 2));
 
        break;
    }
 
    uint32_t num_channels = 0;
    switch (m_format) {
    case vk::Format::eR8Unorm:
    case vk::Format::eR16Unorm:
    case vk::Format::eR32Sfloat:
        num_channels = 1;
        break;
 
    case vk::Format::eR8G8Unorm:
    case vk::Format::eR16G16Unorm:
    case vk::Format::eR32G32Sfloat:
        num_channels = 2;
        break;
 
    case vk::Format::eR8G8B8Unorm:
    case vk::Format::eB8G8R8Unorm:
        num_channels = 3;
        break;
 
    case vk::Format::eR8G8B8A8Unorm:
    case vk::Format::eB8G8R8A8Unorm:
    case vk::Format::eR8G8B8A8Srgb:
    case vk::Format::eR16G16B16A16Unorm:
    case vk::Format::eR32G32B32A32Sfloat:
    default:
        num_channels = 4; // Assume RGBA for unknown formats
        break;
    }
 
    if (num_channels > 0) {
        m_dimensions.push_back(DataDimension::channel(num_channels));
    }
 
    if (m_mip_levels > 1) {
        m_dimensions.push_back(DataDimension::mipmap_levels(m_mip_levels));
    }
 
    if (m_array_layers > 1 && m_type != Type::TYPE_CUBE) {
        m_dimensions.push_back(DataDimension::grouped("cubemap_faces", 6, 2));
    }
 
    MF_DEBUG(Journal::Component::Core, Journal::Context::GraphicsBackend,
        "VKImage dimensions inferred: {}x{}x{}, {} channels, {} mips, {} layers",
        m_width, m_height, m_depth, num_channels, m_mip_levels, m_array_layers);
}

References MayaFlux::Journal::Core, MayaFlux::Journal::GraphicsBackend, m_array_layers, m_depth, m_dimensions, m_format, m_height, m_mip_levels, m_type, m_width, MF_DEBUG, TYPE_1D, TYPE_2D, TYPE_3D, and TYPE_CUBE.

Referenced by set_modality(), and VKImage().

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