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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
#include <mutex>
#include <vector>
#include <deque>
#include "../../GraphicsEngine/interface/SwapChain.h"
#include "../../GraphicsEngine/interface/RenderDevice.h"
#include "../../GraphicsEngine/interface/DeviceContext.h"
#include "../../../Common/interface/RefCntAutoPtr.hpp"
namespace Diligent
{
class ScreenCapture
{
public:
ScreenCapture(IRenderDevice* pDevice);
void Capture(ISwapChain* pSwapChain, IDeviceContext* pContext, Uint32 FrameId);
struct CaptureInfo
{
RefCntAutoPtr<ITexture> pTexture;
Uint32 Id = 0;
explicit operator bool() const
{
return pTexture != nullptr;
}
};
CaptureInfo GetCapture();
bool HasCapture();
void RecycleStagingTexture(RefCntAutoPtr<ITexture>&& pTexture);
size_t GetNumPendingCaptures()
{
std::lock_guard<std::mutex> Lock{m_PendingTexturesMtx};
return m_PendingTextures.size();
}
private:
RefCntAutoPtr<IFence> m_pFence;
RefCntAutoPtr<IRenderDevice> m_pDevice;
std::mutex m_AvailableTexturesMtx;
std::vector<RefCntAutoPtr<ITexture>> m_AvailableTextures;
std::mutex m_PendingTexturesMtx;
struct PendingTextureInfo
{
PendingTextureInfo(RefCntAutoPtr<ITexture>&& _pTex, Uint32 _Id, Uint64 _Fence) :
// clang-format off
pTex {std::move(_pTex)},
Id {_Id },
Fence {_Fence }
// clang-format on
{
}
RefCntAutoPtr<ITexture> pTex;
const Uint32 Id;
const Uint64 Fence;
};
std::deque<PendingTextureInfo> m_PendingTextures;
Uint64 m_CurrentFenceValue = 1;
};
} // namespace Diligent
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