Add the PS4 functions sceVideoOutSetBufferAttribute and
sceVideoOutRegisterBuffers on top of the existing registration. The PS4
call uses the first free attribute set and returns its index. It
accepts linear A8R8G8B8_SRGB and A8B8G8R8_SRGB buffers, which map to the
PS5 B8G8R8A8 and R8G8B8A8 formats. It throws for tiled buffers, whose
PS4 layout differs from the PS5 one. Linear PS4 buffers may be 4 KiB
aligned: the OpenOrbis graphics sample places its second 1920x1080
buffer 8,294,400 bytes after the first. PS5 buffers keep the 64 KiB
rule. A handle with PS4 buffers writes the PS4 flip status (64 bytes)
and vblank status (32 bytes). Writing the 128-byte PS5 flip status into
the sample's stack structure overwrote its saved frame pointer.
sceVideoOutSubmitChangeBufferAttribute2 threw when a buffer of the group
had a flip pending, and Marvel's Wolverine makes that call with flips in
the queue. A flip now takes its buffer group when it is reserved, in
submission order, so flips submitted before the change keep the
attributes their buffers were rendered with and later flips use the
new ones.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Elden Ring Nightreign (PPSA25380) imports the function, which no library
exported, so the title failed to load. The option is ORed into the buffer
attribute and a null attribute throws. Options other than 0 and 8 still
throw when the buffers are registered.
sceVideoOutRegisterBuffers2 threw "DCC presentation is not implemented"
for category 1 (DCC-compressed) buffers, which PPSA26344 registers. Such
a buffer now needs DCC metadata and the tiled layout, and dcc_control may
only use the CB_DCC_CONTROL block layout bits 0x10026c.
At a flip the keys are read behind their recorded writers, one byte per
256 bytes as in the driver's DCC model. Uncompressed keys present the
stored texels as before; a uniform clear code presents its color with a
GPU clear of the scaler's source image; a pending storage image is used
when it serves the keys. Mixed or unreadable keys, clear codes the
display format has no DCC encoding for, register-clear keys over a
pending image and a clear color wider than 32 bits throw. Buffers
without DCC take the old path.
sceVideoOutRegisterBuffers2 and sceVideoOutSubmitChangeBufferAttribute2
threw for every buffer attribute option other than 0. PPSA26344 builds
its display buffers with option 8 through the libSceAgc helper linked
into it, so its first registration failed.
Option 8, VIDEO_OUT_BUFFER_ATTRIBUTE_OPTION_STRICT_COLORIMETRY (name
and value from KytyPS5), is now accepted and presented as option 0;
every other option still throws. What the console changes for it is
unknown and recorded in TechnicalDebt. The rejection now names the
tiling mode, pitch, aspect ratio and option it was given.
video_out_flip_tests decode checks that option 8 describes the same
buffer as option 0 and that options 1, 32 and 40 are rejected.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Get-fix