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[idd] transport: route immutable texture frames

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This commit is contained in:
Geoffrey McRae
2026-08-13 17:33:32 +10:00
parent ba7a037f23
commit deb963774e
16 changed files with 1207 additions and 37 deletions
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9
idd/LGIdd/transport/ITransport.h
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@@ -32,6 +32,7 @@
class IControlSink;
class IFrameSink;
class IInputSource;
class ITexSink;
struct SourceKey
{
@@ -151,8 +152,11 @@ public:
// Profiles is an immutable, ordered preference list of at most
// FRAME_PROFILE_MAX entries whose pointer remains valid for the lifetime
// of this instance.
// Probe has no side effects. Prepare changes pending state only; Commit
// promotes it without failure, while Abort preserves the active route.
// Probe has no side effects. Prepare changes pending state only and is safe
// while the active texture sink is admitting frames. Commit promotes it
// without failure, while Abort preserves the active route. A texture
// transport retains old-generation resources until every accepted lease
// completes; Stop drains all accepted leases before destroying its sink.
virtual const FrameProfile * Profiles(unsigned& count) const = 0;
virtual CfgResult Probe(const FrameCfg& cfg) const = 0;
virtual CfgResult Prepare(const FrameCfg& cfg) = 0;
@@ -171,6 +175,7 @@ public:
// Component pointers are fixed after Setup and remain valid until Stop.
virtual IFrameSink * FrameSink() { return nullptr; }
virtual ITexSink * TexSink() { return nullptr; }
virtual IControlSink * Control() { return nullptr; }
virtual IInputSource * Input() { return nullptr; }
};