Files
LookingGlass/idd/LGIdd/CFrameBufferResource.h
Geoffrey McRae 0b9b805530 [idd] scheduler: retain frames for publication deadlines
Prepare each acquired content frame into one of two private GPU
candidates so the IddCx frame can be released without copying it to
IVSHMEM immediately.

Wake a high-resolution publisher at the client deadline and send the
newest completed candidate. Preserve accumulated damage across
superseded candidates, include the scheduling hold in end-to-end timing,
and keep transport work on the existing physical copy queue.
2026-08-05 12:38:07 +10:00

84 lines
3.0 KiB
C++

/**
* Looking Glass
* Copyright © 2017-2026 The Looking Glass Authors
* https://looking-glass.io
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc., 59
* Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#pragma once
#include <Windows.h>
#include <wdf.h>
#include <wrl.h>
#include <d3d12.h>
#include <stdint.h>
class CSwapChainProcessor;
using namespace Microsoft::WRL;
class CFrameBufferResource
{
private:
unsigned m_frameIndex = 0;
uint8_t * m_base = nullptr;
size_t m_size = 0;
size_t m_frameSize = 0;
uint64_t m_captureTime = 0;
uint64_t m_postProcessStart = 0;
uint64_t m_copyStart = 0;
unsigned m_timingEffectIndex = 0;
uint64_t m_timingToken = 0;
bool m_fullCopy = false;
unsigned m_candidateIndex = 0;
ComPtr<ID3D12Resource> m_res;
void * m_map = nullptr;
public:
bool Init(CSwapChainProcessor * swapChain, unsigned frameIndex, uint8_t * base, size_t size);
void Reset();
unsigned GetFrameIndex() { return m_frameIndex; }
size_t GetFrameSize() { return m_frameSize; }
void * GetMap() { return m_map; }
void SetTiming(uint64_t captureTime, uint64_t postProcessStart,
uint64_t copyStart)
{
m_captureTime = captureTime;
m_postProcessStart = postProcessStart;
m_copyStart = copyStart;
}
uint64_t GetCaptureTime () const { return m_captureTime; }
uint64_t GetPostProcessStart() const { return m_postProcessStart; }
uint64_t GetCopyStart () const { return m_copyStart; }
void SetPostProcessSample(
unsigned effectIndex, uint64_t token, bool fullCopy)
{
m_timingEffectIndex = effectIndex;
m_timingToken = token;
m_fullCopy = fullCopy;
}
unsigned GetTimingEffectIndex() const { return m_timingEffectIndex; }
uint64_t GetTimingToken () const { return m_timingToken; }
bool IsFullCopy () const { return m_fullCopy; }
void SetCandidateIndex(unsigned index) { m_candidateIndex = index; }
unsigned GetCandidateIndex() const { return m_candidateIndex; }
ComPtr<ID3D12Resource> Get() { return m_res; }
};