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S-VIEW-3: add envelope_overlay + envelope_edit pure modules

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AHDSR/Trigger params -> polyline forward map (overlay) and node hit-test +
clamped/monotonic pixel->param inverse map (edit) for the draggable Sample-view
envelope. Engine-free, unit-tested, wired into ctest. No shell changes.
This commit is contained in:
Daniel Harvey
2026-07-27 13:24:48 -04:00
parent 3b9b78b82c
commit 12a7d072ac
7 changed files with 988 additions and 0 deletions
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CMakeLists.txt
+31
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@@ -762,6 +762,24 @@ add_library(param_slider STATIC src/vst/param_slider.cpp)
target_include_directories(param_slider PUBLIC src/vst)
target_link_libraries(param_slider PUBLIC editor_geometry)
# envelope_overlay (Phase S-VIEW-3) — PURE amp-envelope -> polyline geometry for the Sample-view
# envelope overlay: AHDSR (Gate) / fade+%-length (Trigger) params + the sample's wall-clock
# duration -> a breakpoint polyline in the waveform rect, at the same time base waveform_view maps.
# The mirror of waveform_view / param_slider; links editor_geometry for the shared Rect.
# Deliberately engine-free (no sample_map / sampler_core) — the shell packs the zone's stored
# AdsrSeconds / TriggerParams into the small AmpEnvelope view struct. NEITHER SDK.
add_library(envelope_overlay STATIC src/vst/envelope_overlay.cpp)
target_include_directories(envelope_overlay PUBLIC src/vst)
target_link_libraries(envelope_overlay PUBLIC editor_geometry)
# envelope_edit (Phase S-VIEW-3) — PURE node hit-test + pixel-delta -> clamped-param inverse map
# for the draggable envelope nodes: monotonic-in-time + range-clamped (against caller-supplied
# slider maxima) so a drag can never produce a param a slider couldn't. The mirror of card_drag;
# links envelope_overlay for the shared node vocabulary + the timeToX/levelToY maps. NEITHER SDK.
add_library(envelope_edit STATIC src/vst/envelope_edit.cpp)
target_include_directories(envelope_edit PUBLIC src/vst)
target_link_libraries(envelope_edit PUBLIC envelope_overlay)
add_executable(editor_geometry_tests tests/test_editor_geometry.cpp)
target_link_libraries(editor_geometry_tests PRIVATE editor_geometry)
add_test(NAME editor_geometry_tests COMMAND editor_geometry_tests)
@@ -817,6 +835,19 @@ add_executable(param_slider_tests tests/test_param_slider.cpp)
target_link_libraries(param_slider_tests PRIVATE param_slider)
add_test(NAME param_slider_tests COMMAND param_slider_tests)
# envelope_overlay (S-VIEW-3): the pure amp-envelope -> polyline geometry (Gate AHDSR + Trigger
# fade/%-length) at the waveform time base. Links ONLY envelope_overlay (+ its editor_geometry
# dep) — NEITHER SDK — the plain-data-boundary proof.
add_executable(envelope_overlay_tests tests/test_envelope_overlay.cpp)
target_link_libraries(envelope_overlay_tests PRIVATE envelope_overlay)
add_test(NAME envelope_overlay_tests COMMAND envelope_overlay_tests)
# envelope_edit (S-VIEW-3): the pure node hit-test + clamped/monotonic pixel->param inverse map.
# Links ONLY envelope_edit (+ its envelope_overlay dep) — NEITHER SDK.
add_executable(envelope_edit_tests tests/test_envelope_edit.cpp)
target_link_libraries(envelope_edit_tests PRIVATE envelope_edit)
add_test(NAME envelope_edit_tests COMMAND envelope_edit_tests)
# ---------------------------------------------------------------------------
# 4) The REAPER extension — a loadable module (dlopen'd by REAPER, not linked).
# ---------------------------------------------------------------------------