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d3d11: calc vsync interval on real stats, not just last interval

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This commit is contained in:
Kacper Michajłow 2023-10-08 18:30:51 +02:00 committed by Dudemanguy
parent b26d2ab01c
commit f27767f59e
1 changed files with 17 additions and 12 deletions
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29
video/out/d3d11/context.c
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@ -103,8 +103,8 @@ struct priv {
struct mp_colorspace swapchain_csp;
int64_t perf_freq;
unsigned last_sync_refresh_count;
int64_t last_sync_qpc_time;
unsigned sync_refresh_count;
int64_t sync_qpc_time;
int64_t vsync_duration_qpc;
int64_t last_submit_qpc;
};
@ -303,28 +303,33 @@ static void d3d11_get_vsync(struct ra_swapchain *sw, struct vo_vsync_info *info)
DXGI_FRAME_STATISTICS stats;
hr = IDXGISwapChain_GetFrameStatistics(p->swapchain, &stats);
if (hr == DXGI_ERROR_FRAME_STATISTICS_DISJOINT) {
p->last_sync_refresh_count = 0;
p->last_sync_qpc_time = 0;
p->sync_refresh_count = 0;
p->sync_qpc_time = 0;
}
if (FAILED(hr))
return;
info->last_queue_display_time = 0;
info->vsync_duration = 0;
// Detecting skipped vsyncs is possible but not supported yet
info->skipped_vsyncs = 0;
info->skipped_vsyncs = -1;
// Get the number of physical vsyncs that have passed since the last call.
// Get the number of physical vsyncs that have passed since the start of the
// playback or disjoint event.
// Check for 0 here, since sometimes GetFrameStatistics returns S_OK but
// with 0s in some (all?) members of DXGI_FRAME_STATISTICS.
unsigned src_passed = 0;
if (stats.SyncRefreshCount && p->last_sync_refresh_count)
src_passed = stats.SyncRefreshCount - p->last_sync_refresh_count;
p->last_sync_refresh_count = stats.SyncRefreshCount;
if (stats.SyncRefreshCount && p->sync_refresh_count)
src_passed = stats.SyncRefreshCount - p->sync_refresh_count;
if (p->sync_refresh_count == 0)
p->sync_refresh_count = stats.SyncRefreshCount;
// Get the elapsed time passed between the above vsyncs
unsigned sqt_passed = 0;
if (stats.SyncQPCTime.QuadPart && p->last_sync_qpc_time)
sqt_passed = stats.SyncQPCTime.QuadPart - p->last_sync_qpc_time;
p->last_sync_qpc_time = stats.SyncQPCTime.QuadPart;
if (stats.SyncQPCTime.QuadPart && p->sync_qpc_time)
sqt_passed = stats.SyncQPCTime.QuadPart - p->sync_qpc_time;
if (p->sync_qpc_time == 0)
p->sync_qpc_time = stats.SyncQPCTime.QuadPart;
// If any vsyncs have passed, estimate the physical frame rate
if (src_passed && sqt_passed)