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/*
* Copyright 2019-2021 Diligent Graphics LLC
* Copyright 2015-2019 Egor Yusov
*
* 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.
*
* In no event and under no legal theory, whether in tort (including negligence),
* contract, or otherwise, unless required by applicable law (such as deliberate
* and grossly negligent acts) or agreed to in writing, shall any Contributor be
* liable for any damages, including any direct, indirect, special, incidental,
* or consequential damages of any character arising as a result of this License or
* out of the use or inability to use the software (including but not limited to damages
* for loss of goodwill, work stoppage, computer failure or malfunction, or any and
* all other commercial damages or losses), even if such Contributor has been advised
* of the possibility of such damages.
*/
#pragma once
/// \file
/// Declaration of Diligent::FramebufferCache class
#include <unordered_map>
#include <mutex>
#include "VulkanUtilities/VulkanObjectWrappers.hpp"
namespace Diligent
{
class RenderDeviceVkImpl;
class FramebufferCache
{
public:
FramebufferCache(RenderDeviceVkImpl& DeviceVKImpl) :
m_DeviceVk{DeviceVKImpl}
{}
// clang-format off
FramebufferCache (const FramebufferCache&) = delete;
FramebufferCache (FramebufferCache&&) = delete;
FramebufferCache& operator = (const FramebufferCache&) = delete;
FramebufferCache& operator = (FramebufferCache&&) = delete;
// clang-format on
~FramebufferCache();
// This structure is used as the key to find framebuffer
struct FramebufferCacheKey
{
// Default memeber initialization is intentionally omitted
VkRenderPass Pass;
Uint32 NumRenderTargets;
VkImageView DSV;
VkImageView RTVs[MAX_RENDER_TARGETS];
Uint64 CommandQueueMask;
bool operator==(const FramebufferCacheKey& rhs) const;
size_t GetHash() const;
private:
mutable size_t Hash = 0;
};
VkFramebuffer GetFramebuffer(const FramebufferCacheKey& Key, uint32_t width, uint32_t height, uint32_t layers);
void OnDestroyImageView(VkImageView ImgView);
void OnDestroyRenderPass(VkRenderPass Pass);
private:
RenderDeviceVkImpl& m_DeviceVk;
struct FramebufferCacheKeyHash
{
std::size_t operator()(const FramebufferCacheKey& Key) const
{
return Key.GetHash();
}
};
std::mutex m_Mutex;
std::unordered_map<FramebufferCacheKey, VulkanUtilities::FramebufferWrapper, FramebufferCacheKeyHash> m_Cache;
std::unordered_multimap<VkImageView, FramebufferCacheKey> m_ViewToKeyMap;
std::unordered_multimap<VkRenderPass, FramebufferCacheKey> m_RenderPassToKeyMap;
};
} // namespace Diligent
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