Method GetRangeGen

layers/sync/sync_access_context.cpp:696–721

}

ImageRangeGen AttachmentViewGen::GetRangeGen(AttachmentViewGen::Gen type, uint32_t view_index) const {
    // Restrict image view's subresource range to a specific multiview layer
    if (view_index != vvl::kNoIndex32) {
        VkImageSubresourceRange subresource = view_->normalized_subresource_range;
        if (view_index >= subresource.layerCount) {
            return {};  // invalid view index
        }
        subresource.baseArrayLayer += view_index;
        subresource.layerCount = 1;
        auto range_gen = SubState(*view_->image_state).MakeImageRangeGen(subresource, view_->is_depth_sliced);
        return range_gen;
    }

    // If a single aspect of depth-stencil attachment is requested, but the attachment actually
    // consist of a single aspect, then the render area's range gen is what was requested
    // (in this case we also don't cache separate depth/stencil-only range gens).
    const bool asked_depth_aspect_for_depth_only =
        (type == kDepthOnlyRenderArea) && vkuFormatIsDepthOnly(view_->create_info.format);
    const bool asked_stencil_aspect_for_stencil_only =
        (type == kStencilOnlyRenderArea) && vkuFormatIsStencilOnly(view_->create_info.format);
    if (asked_depth_aspect_for_depth_only || asked_stencil_aspect_for_stencil_only) {
        type = Gen::kRenderArea;
    }
    assert(gen_store_[type].has_value());
    return *gen_store_[type];
}

AttachmentViewGen::Gen AttachmentViewGen::GetDepthStencilRenderAreaGenType(bool depth_op, bool stencil_op) const {
    assert(vkuFormatIsDepthOrStencil(view_->create_info.format));