/*
 * Copyright (C) 2018 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef TNT_FILAMENT_DRIVER_VULKANSAMPLERCACHE_H
#define TNT_FILAMENT_DRIVER_VULKANSAMPLERCACHE_H

#include "VulkanContext.h"
#include "VulkanUtility.h"

#include <tsl/robin_map.h>

namespace filament {
namespace backend {

// Simple manager for VkSampler objects.
class VulkanSamplerCache {
public:
    explicit VulkanSamplerCache(VulkanContext&);
    VkSampler getSampler(backend::SamplerParams params) noexcept;
    void reset() noexcept;
private:
    VulkanContext& mContext;
    tsl::robin_map<uint32_t, VkSampler> mCache;
};

} // namespace filament
} // namespace backend

#endif // TNT_FILAMENT_DRIVER_VULKANSAMPLERCACHE_H
