Validate temporal scale and deterministic internal extent

2026-09-24 02:56:51 +03:00
parent 17177357fb
commit 4b8f9b8132
3 changed files with 64 additions and 0 deletions
@@ -26,6 +26,13 @@ TemporalFallbackReason temporal_fallback_reason(TemporalMode requested,
 TemporalMode select_effective_temporal_mode(TemporalMode requested,
                                            TemporalCapabilities available) noexcept;

+// Validate the requested mode and scale before allocating scene targets.
+// Off/TAA are 1:1; Upscale accepts [0.5, 1). Ceil rounding is deterministic
+// for odd output extents and never produces a zero-sized internal target.
+std::array<std::uint32_t, 2> temporal_internal_extent(std::uint32_t output_width,
+                                                       std::uint32_t output_height,
+                                                       TemporalMode mode, float render_scale);
+
 enum class TemporalResetReason {
    None,
    FirstFrame,