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[idd] rgb24: compare stable candidate timings

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Ignore allocation alignment when matching retained candidate resources.
D3D12 may resolve automatic alignment requests in GetDesc.
Comparing that value recreated the candidate for every benchmark sample.

Measure native and packed over matching wall-clock intervals.
Use preparation and publication intervals, excluding the cadence hold.
This avoids mixing GPU timestamps with fallback timing. The CPU IVSHMEM
copy is included only on indirect systems.
This commit is contained in:
Geoffrey McRae
2026-08-05 21:45:08 +10:00
parent f073099950
commit ab25601a61
2 changed files with 53 additions and 36 deletions
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33
idd/LGIdd/CSwapChainProcessor.h
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@@ -66,24 +66,25 @@ private:
struct FrameCandidate
{
CandidateState state = CANDIDATE_FREE;
CandidateState state = CANDIDATE_FREE;
ComPtr<ID3D12Resource> resource;
D12FrameFormat srcFormat = {};
D12FrameFormat dstFormat = {};
D12FrameFormat srcFormat = {};
D12FrameFormat dstFormat = {};
RECT dirtyRects[LG_MAX_DIRTY_RECTS] = {};
unsigned nbDirtyRects = 0;
unsigned pitch = 0;
size_t frameSize = 0;
uint64_t sequence = 0;
uint64_t captureTime = 0;
uint64_t postProcessStart = 0;
uint64_t prepareCopyStart = 0;
uint64_t prepareReady = 0;
uint64_t prepareGPUStart = 0;
uint64_t prepareGPUEnd = 0;
unsigned timingEffectIndex = 0;
uint64_t timingToken = 0;
bool prepareTimingValid = false;
unsigned nbDirtyRects = 0;
unsigned pitch = 0;
size_t frameSize = 0;
uint64_t sequence = 0;
uint64_t captureTime = 0;
uint64_t postProcessStart = 0;
uint64_t prepareCopyStart = 0;
uint64_t prepareReady = 0;
uint64_t prepareGPUStart = 0;
uint64_t prepareGPUEnd = 0;
uint64_t timingStart = 0;
unsigned timingEffectIndex = 0;
uint64_t timingToken = 0;
bool prepareTimingValid = false;
};
struct CandidateDamageTail