Method prepare_depth

cube/cube.cpp:2452–2497

}

void Demo::prepare_depth() {
    depth.format = vk::Format::eD16Unorm;

    auto const image = vk::ImageCreateInfo()
                           .setImageType(vk::ImageType::e2D)
                           .setFormat(depth.format)
                           .setExtent({width, height, 1})
                           .setMipLevels(1)
                           .setArrayLayers(1)
                           .setSamples(vk::SampleCountFlagBits::e1)
                           .setTiling(vk::ImageTiling::eOptimal)
                           .setUsage(vk::ImageUsageFlagBits::eDepthStencilAttachment)
                           .setSharingMode(vk::SharingMode::eExclusive)
                           .setInitialLayout(vk::ImageLayout::eUndefined);

    auto result = device.createImage(&image, nullptr, &depth.image);
    VERIFY(result == vk::Result::eSuccess);

    vk::MemoryRequirements mem_reqs;
    device.getImageMemoryRequirements(depth.image, &mem_reqs);

    depth.mem_alloc.setAllocationSize(mem_reqs.size);
    depth.mem_alloc.setMemoryTypeIndex(0);

    auto const pass = memory_type_from_properties(mem_reqs.memoryTypeBits, vk::MemoryPropertyFlagBits::eDeviceLocal,
                                                  depth.mem_alloc.memoryTypeIndex);
    VERIFY(pass);

    result = device.allocateMemory(&depth.mem_alloc, nullptr, &depth.mem);
    VERIFY(result == vk::Result::eSuccess);

    result = device.bindImageMemory(depth.image, depth.mem, 0);
    VERIFY(result == vk::Result::eSuccess);

    auto view = vk::ImageViewCreateInfo()
                    .setImage(depth.image)
                    .setViewType(vk::ImageViewType::e2D)
                    .setFormat(depth.format)
                    .setSubresourceRange(vk::ImageSubresourceRange(vk::ImageAspectFlagBits::eDepth, 0, 1, 0, 1));
    if (force_errors) {
        // Intentionally force a bad pNext value to generate a validation layer error
        view.pNext = ℑ
    }
    result = device.createImageView(&view, nullptr, &depth.view);
    VERIFY(result == vk::Result::eSuccess);
}

void Demo::prepare_descriptor_layout() {
    std::array<vk::DescriptorSetLayoutBinding, 2> const layout_bindings = {