ableton_live.hpp File Reference

Per-host quirks for Ableton Live (macOS plan item 5.4). More...

#include <pulp/format/host_quirks.hpp>
#include <pulp/format/host_version.hpp>

Go to the source code of this file.

Namespaces
namespace	pulp
namespace	pulp::format
	What the product grants a device: the quota table indexed by capability tier and live thermal state.
namespace	pulp::format::host_quirks

Functions
void	pulp::format::host_quirks::apply_ableton_live (HostQuirks &q, HostVersion v)
	Populate Ableton Live host-gated flags onto q.

Detailed Description

Per-host quirks for Ableton Live (macOS plan item 5.4).

DAW-quirks rows 5 + 6 (VST3):

• row 5: Live calls checkSizeConstraint() even when the plugin advertises canResize() == false. The adapter must always return valid bounds (fall back to current size) rather than failing, otherwise Live silently refuses to display the editor.
• row 6: on Windows with per-monitor-V2 DPI, Live's host window may not be ready when the plugin attempts to attach. The adapter must defer view creation until the system-window handle is non-null and retry on the next vsync. No-op on macOS / Linux — the flag is set unconditionally because the Windows VST3 adapter is the only call site that consults it.
• row 7 (VST2) is in Pulp's Deferred-by-design list and intentionally not wired here.

Version handling: both rows 5 + 6 have been present in every Live VST3 host vintage Pulp encounters, so apply_ableton_live fires them regardless of HostVersion. If a future Live release fixes either, add an is_before(major) guard at that point.

Additionally, Live 10.1.13 specifically ships a string-length parsing bug where the IInfoListener::getString callbacks for channel name, channel UID, and index-namespace queries write past the spec-required buffer length and corrupt adjacent memory. The adapter must allocate those buffers at twice the spec size on this exact build. The flag is gated on HostVersion == {10, 1, 13} so no other Live version pays the doubled-allocation cost.

Reference-Lineage: independent reproducer=macos-plan-item-5.4 docs=https://help.ableton.com/hc/en-us/articles/4419010492444-Working-with-VST-Plug-Ins