daniel
1b4d0e67b7
Also corrects the cap-area, em-dash, glyph-overhang and heuristic-comment findings noted in review.
64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
// loop_marks.cpp — see loop_marks.h. Pure value folds; no host types.
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#include "core/instrument/ui/loop_marks.h"
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#include "core/instrument/engine/loop/loop_span.h" // defaultLoopBounds
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namespace reasampler::instrument::ui {
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namespace {
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// The engine's own acceptance test, restated over the editor's two integers: resolveLoop
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// refuses an inverted, empty or out-of-range span rather than repairing it, so a span it would
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// refuse is one the handles must be re-parked out of.
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bool spanUsable(std::int64_t loopStart, std::int64_t loopEnd, std::int64_t frameCount) {
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return loopStart >= 0 && loopEnd > loopStart && loopEnd <= frameCount;
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}
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} // namespace
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LoopMarks resolveLoopMarks(const StoredLoop& stored, std::int64_t frameCount) {
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LoopMarks m;
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if (stored.override_) {
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m.hasLoop = stored.override_->hasLoop;
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m.loopStart = stored.override_->start;
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m.loopEnd = stored.override_->end;
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} else if (stored.intrinsic && stored.intrinsic->hasLoop) {
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m.hasLoop = true;
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m.loopStart = stored.intrinsic->start;
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m.loopEnd = stored.intrinsic->end;
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}
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if (stored.startPoint) m.start = *stored.startPoint;
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m.crossfade = stored.crossfade > 0 ? stored.crossfade : 0;
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if (!spanUsable(m.loopStart, m.loopEnd, frameCount)) {
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m.hasLoop = false;
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m.parked = true;
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const engine::loop::LoopBounds d = engine::loop::defaultLoopBounds(frameCount);
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m.loopStart = d.start;
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m.loopEnd = d.end;
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}
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return m;
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}
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LoopWrite applyLoopMarks(const LoopMarks& m) {
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LoopWrite w;
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const bool spanAlive = m.loopEnd > m.loopStart;
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w.loop.hasLoop = m.hasLoop && spanAlive;
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if (m.parked && !m.hasLoop) {
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// A parked pair (never set) must round-trip back to parked, not to a real "LOOP OFF"
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// span — resolveLoopMarks only re-parks a span spanUsable would refuse, so collapse it
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// deliberately rather than writing back the default bounds' own alive span.
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w.loop.start = m.loopStart;
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w.loop.end = m.loopStart;
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} else {
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w.loop.start = m.loopStart;
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w.loop.end = m.loopEnd;
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}
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w.crossfade = (spanAlive && m.crossfade > 0) ? m.crossfade : 0;
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w.start = m.start;
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return w;
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}
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} // namespace reasampler::instrument::ui
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