sceAudioPropagationSourceRender takes the system, an array of RenderInfo
descriptors and their count: PPSA21564 and PPSA21567 pass one RenderInfo
{0x010107d6, 0x30} per call, with the source handle at +0x10, its output
buffer at +0x18, the buffer size in bytes at +0x20 and the word 2 at
+0x28, once per audio grain for each propagated source.
Without acoustic propagation a source contributes nothing, so each
output buffer is zeroed for its size. Every RenderInfo is checked first
(descriptor, a live source of this system, a non-empty output), and a
count of 0 or a format word other than 2 throws, as neither has been
observed.
The 22 exports used by PPSA21567 take the call shapes recovered from its
call sites (#481): destroys take the system and the object, attribute
setters take a count, SourceCreate takes only an output handle,
UnregisterMaterial only the material.
The system lives in the title's CPU memory (16-byte header, no GPU memory)
and its handle is that address; rooms, portals, sources and materials are
counter handles. Attributes are validated and have no effect; no rays are
requested and sources report no audio paths. Non-empty ray results, path
calculation and audio paths throw, SourceRender stays unimplemented, and
invalid input throws because no error code is known. Objects left when
their system is destroyed become unusable; their later destroy or
unregister is a no-op.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Dean Galvin
Akhil Moola