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VideoCommon: Make Presenter aware of the next swap time to eliminate unsafe usage of GetTicks() with ImmediateXFB + DualCore.

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This commit is contained in:
Jordan Woyak
2025-10-27 18:14:57 -05:00
parent d4f68cb164
commit cc331feb02
6 changed files with 49 additions and 17 deletions
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9
Source/Core/VideoCommon/Present.h
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@@ -37,7 +37,9 @@ public:
void ViSwap(u32 xfb_addr, u32 fb_width, u32 fb_stride, u32 fb_height, u64 ticks,
TimePoint presentation_time);
void ImmediateSwap(u32 xfb_addr, u32 fb_width, u32 fb_stride, u32 fb_height, u64 ticks);
void ImmediateSwap(u32 xfb_addr, u32 fb_width, u32 fb_stride, u32 fb_height);
void SetNextSwapEstimatedTime(u64 ticks, TimePoint host_time);
void Present(std::optional<TimePoint> presentation_time = std::nullopt);
void ClearLastXfbId() { m_last_xfb_id = std::numeric_limits<u64>::max(); }
@@ -167,6 +169,11 @@ private:
u32 m_last_xfb_height = MAX_XFB_HEIGHT;
Common::EventHook m_config_changed;
// Calculated from the previous swap time and current refresh rate.
// Can be used for presentation of ImmediateXFB swaps which don't have timing information.
u64 m_next_swap_estimated_ticks = 0;
TimePoint m_next_swap_estimated_time{Clock::now()};
};
} // namespace VideoCommon