MobileGL/MobileGL/MG_Backend/DirectVulkan/Renderer/SubmitFencePrefix.h

// MobileGL - MobileGL/MG_Backend/DirectVulkan/Renderer/SubmitFencePrefix.h
// Copyright (c) 2025-2026 MobileGL-Dev
// Licensed under the GNU Lesser General Public License v3.0:
//   https://www.gnu.org/licenses/gpl-3.0.txt
//   https://www.gnu.org/licenses/lgpl-3.0.txt
// SPDX-License-Identifier: LGPL-3.0-only
// End of Source File Header

#pragma once

#include <cstdint>
#include <vector>

namespace MobileGL::MG_Backend::DirectVulkan {

    // Collect every fence in the ordered submission prefix. Waiting on only the last matching
    // frame-serial record is insufficient: the same serial may have an earlier in-flight submit.
    template <typename Records, typename Fence>
    bool CollectSubmitFencePrefix(const Records& records, std::uint64_t submitIndex, Fence nullFence,
                                  std::vector<Fence>& fences) {
        fences.clear();
        bool foundTarget = false;
        for (const auto& record : records) {
            if (record.submitIndex > submitIndex) {
                break;
            }
            if (record.fence == nullFence) {
                fences.clear();
                return false;
            }
            fences.push_back(record.fence);
            foundTarget = foundTarget || record.submitIndex == submitIndex;
        }
        if (!foundTarget) {
            fences.clear();
            return false;
        }
        return true;
    }

} // namespace MobileGL::MG_Backend::DirectVulkan