When the firmware module a --disable-hle bit asks for is neither installed nor
on the disc, that library silently runs our HLE instead. For the emulator that
is the right thing; for a test tool it means the run measures something other
than what was asked for and says so only as one INFO line, which is easy to
grep past and easy to never see. It cost a round of wrong results here, where
the memory stick headless defaults to (beside the exe, not the app's) had no
firmware, so a comparison against the real mpeg.prx was quietly a comparison
against the HLE it was supposed to be measured against.
g_unavailableDisableFlags already records exactly which flags fell back, so it
just needed an accessor. Headless now names each one, prints the flash0:/kd and
memory stick it looked in, and fails the run.
Only an explicit --disable-hle binds. sceMpeg and sceMp4 are LLE by default, and
falling back is the correct and expected behaviour wherever no firmware is
installed - making that fatal would fail every run on such a machine.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
sceMpegBasePESpacketCopy used to gather each DMA into a buffer filed under the
address of its first block, and sceVideocodecDecode looked one up by the address
it was handed. That works only while an access unit arrives in a single call. It
doesn't: mpeg.prx routinely DMAs one in several pieces at consecutive addresses,
and the table then kept whichever piece happened to start where the decode later
asked, and dropped the rest.
So the DMA now writes each block at the address it names. The Media Engine's own
memory moves to its real addresses - low ones, which mpeg.prx bounds-checks
against 0x3FFFFF - and pieces written at consecutive addresses end up
consecutive, which is all this ever needed. Our own allocations move to the top
half, away from the addresses mpeg.prx picks for itself.
That memory is the ME's, not the Allegrex's, and the two are separate address
spaces: on hardware only the ME reaches it, so here it is a buffer of our own
that nothing emulated can address. It gets its own MEIsValidRange and
MEGetPointerRange rather than borrowing Memory::, which answers for the
Allegrex's memory and has nothing to say about this one.
An address only means something together with the space it came from, and
mpeg.prx hands over bare integers. The three places that have to work it out
from the value now ask the ME first, where they used to ask Memory:: first and
so read every address as the CPU's. It separates the addresses these callers
actually pass (ME memory well down in the first megabyte, PSP RAM at 0x08000000
and up), but that's those callers rather than a rule.
Savestates from before this carry the old packet table; it's read and dropped,
since the Media Engine's memory is saved and that's where the payloads live now.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
Nothing on this path ever called InitFFmpeg, so ffmpeg's log callback was never
installed and everything it had to say about the bitstream went nowhere. Our own
return codes only report that a frame arrived, not what it was built from, so a
video could fall apart on screen while the log showed two warnings in two
thousand frames.
Also report decode_error_flags and AV_FRAME_FLAG_CORRUPT per frame, which covers
the other half: a frame that decodes "successfully" out of concealment. Coalesced
into one line per run of damage, since a missing reference makes every frame
damaged until the next keyframe.
Not setting AV_EF_EXPLODE, which would make the decoder fail where it currently
conceals - that is a behaviour change, and this is meant to be a reporting one.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
FpCondFromReg's meta is "_G", so the register is in src1 - which is where
every native backend, PropagateConstants and ReorderLoadStore read it.
But IRInterpret read it from dest, and Comp_VecDo3 wrote it to dest to
match. The other emitter passes (0, MIPS_REG_ZERO), so both fields are
zero there and the disagreement stayed hidden.
The result was that vsge/vslt, which save fpcond to IRTEMP_0 and restore
it afterwards, restored r0 (always zero) on the native IR JITs instead of
the saved value, losing any c.cond.s result live across them. Fixed both
the emitter and the interpreter to use src1.
Vec4Pack31To8's SSE2 path computed (v >> 24) << 1, which is (v >> 23)
with bit 23 forced to zero - the scalar and NEON paths both do
(v >> 23) & 0xFF. Shift left first instead. The pspautotests inputs all
happen to have bit 23 clear after the clamp, so this wasn't caught.
Also:
- Evaluate() didn't mask constant-folded shift amounts to 5 bits, though
the neighbouring one-immediate path does.
- ApplyMemoryValidation only invalidated its address-check cache for ops
with a 'G' destination, while Interpret and CallReplacement can write
any GPR - both are barriers, so drop the whole cache when we see one.
- ReduceVec4Flush indexed isVec4 with (src2 & 3) instead of (src2 & ~3)
for Vec4Scale; a missed optimization rather than a miscompile.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
flush_to_file() ends with clear(), but tracing stays on and the blocks
already compiled keep the index baked into their LogIRBlock instruction.
A second flush then indexed an emptied trace_info out of bounds.
Skip indices that no longer refer to anything and say so in the log, and
give the LogIRBlock placeholder an explicit invalid index so a block that
prepare_block failed to record doesn't dump block 0 instead.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
WriteMMIO_U32 was missing the return after the kernel-mode check, so a
user-mode write raised the exception and then went through anyway. The
other five MMIO accessors already return here; this one lost it when the
GPIO/syscon branches were added.
Int_Vrot scanned all four entries of dregs, but GetVectorRegs only fills
the first n - so a vrot with vs == 0 (S000) matched a lane that isn't
there and took the cosine from it. The IR backend gets this right via
IsOverlapSafe, so the two disagreed.
The breakpoint checks in MIPSInterpret and RunUntilDowncountZeroWithChecks
read instr->flags without checking for null, which MIPSGetInstruction
returns for the eight primary opcodes (and many subops) that don't decode.
With a memcheck or register breakpoint active, landing on one of those
crashed instead of raising ILLEGAL.
Also: GetVectorOverlap decoded the second vector with size1 (no callers
today), and RegisterFunction left most of its AnalyzedFunction
uninitialized, including the size that ends up in knownfuncs.ini.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
GetSaveInfo() took the date from whichever file the directory listing
returned first, so a save whose ICON0.PNG is older than the rest showed
the icon's date in the save/load dialog. The savedata manager already
uses PARAM.SFO's time. Use that here too, keeping the first file as the
fallback when there's no PARAM.SFO.
Outrun 2006's USB kernel module calls it on a failed sceUsbbdRegister,
so booting the game printed "Unimplemented function Kprintf". It's the
kernel's debug printf - on hardware it goes to whatever
sceKernelRegisterKprintfHandler() installed, which on a retail PSP is
the serial port, so this is just debug output the game shipped with.
We format it and log it, which is the useful thing to do with it.
The vararg walker that sysclib's sprintf/snprintf already had is now
HLEFormatPrintf() in HLE.cpp, so there's one of these rather than a
second copy. It takes the index of the first vararg (counting a0 as 0)
instead of an offset from a2, which is the same mapping written in
absolute terms - sprintf passes 2 and snprintf 3, where they passed
0 and 1 before.
Kprintf replaces the existing nullptr entry in the KDebugForKernel
table, so no indices move and savestates are unaffected.
Our psmf and psmfPlayer HLE plays video by calling our sceMpeg HLE, so it has
nothing to talk to when the real mpeg.prx is running. The flag now gives way
when sceMpeg is LLE.
Moved below the force-enable and unavailable masks so it tests what sceMpeg
actually ended up as rather than what was asked for.
Also remove a bad assert.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
The sceMpeg one goes away: our HLE handles almost everything, so ending up on it
isn't worth interrupting the player over. It stays in the log, where it explains
why a video might not look the way it does with the real module.
The sceMp4 one is the one that matters, since there is no working HLE behind it,
and it now says "installed firmware" rather than "firmware dump" - PPSSPP
installs firmware much as a PSP does these days, so that is the wrong word.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
A game that ships MPEG.PRX doesn't need a firmware installed to run the real
module - Death Jr. loads PSP_GAME/USRDIR/MODULES/MPEG.PRX itself - but the flag
came off anyway, because the decision has to be made before the game's imports
resolve and nothing had looked on the disc yet. So look: a bounded walk for a
file of that name, only when flash0 comes up empty, so the usual case pays
nothing.
The name is the easy part - about a quarter of discs ship one and it is called
mpeg.prx in every case seen - but the directory is not. MODULE and MODULES are
the common ones, with KMODULE, PRX, DATA/MODULE, and more at five levels deep,
hence the generous depth limit. Matching on the name rather than reading each
PRX to see what it exports means guessing wrong only costs us the real module.
sceMp4 is the other half of this. Our HLE of it is nearly all stubs, so dropping
the flag for want of firmware doesn't rescue anything - those libraries only
exist in firmware 6.00 and later, and without them MP4 playback simply isn't
available. Since almost nothing uses sceMp4, warning about that every boot would
be noise, so NotifyLoadStatusMp4 says it instead, which only something actually
asking for MP4 reaches.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
Both now graduate to AlwaysDisableHLEFlags, so a firmware dump gets the real
mpeg.prx, libmp4.prx and mp4msv.prx without anyone having to find the setting.
The checkbox moves from "Disable HLE" to "Force-enable HLE" on its own, so a
game that regresses still has a way back.
Neither can be counted on being there, so HLECheckModuleAvailability drops the
flag when the module is missing and the HLE serves as before - the same thing
sceFont does when flash0:/font is empty. Its sceMp4 check asked the setting,
which is no longer where the answer is now that the default is on; it asks
AlwaysDisableHLEFlags instead, and sceMpeg gets a check of its own.
Both are quiet about it now. Missing firmware used to mean a request we couldn't
honour, which was worth a warning on screen; now it just means the user has no
dump, which is the ordinary way to run PPSSPP.
The cost is that a disc carrying its own mpeg.prx also falls back when there's
no firmware, though it would have run fine. The choice has to be made before the
game's imports are resolved and there's no telling then whether a module will
appear later, and getting it wrong leaves the game importing from a module that
never loads.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
UnitTest.h's EXPECT_ macros all call printf and EXPECT_EQ_MEM calls memcmp, but
it included neither <cstdio> nor <cstring> - it has been relying on whatever the
including file happened to pull in first, and TestMpegCsc was the first not to.
The same shape in sceMpegbase.cpp and sceVideocodec.cpp, which use std::min,
std::move and memcpy without saying where they come from.
Also drop an abs() from TestMpegCsc rather than include <cstdlib> for one
subtraction.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
__MpegBaseInit was called by __MpegInit rather than by __KernelInit, and
__MpegBaseShutdown had just been added the same way. Every other module is
started and stopped directly by the kernel - __MpegBaseDoState already was -
so do the same here and let sceMpeg.cpp mind only its own state.
The order is unchanged: __MpegBaseInit ran first inside __MpegInit and now sits
just before it, __MpegBaseShutdown ran last and now sits just after.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
__MpegBaseShutdown, hanging off __MpegShutdown the way __MpegBaseInit hangs off
__MpegInit, so the de-tiling scratch and the swscale context go back when the
game stops rather than only when the next one starts. Between them they are a
few hundred kilobytes that a game which played one video early on has no further
use for.
Also name the swscale flags rather than passing SWS_POINT inline, and say next
to it what the choice actually decides - with equal sizes in and out it is only
how chroma gets to full resolution, and SWS_BILINEAR (what the HLE uses) is a
one-line swap. Worth a real option one day; not adding one now.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
The planes the de-tiling produces are already the YUV420P swscale wants, and our
sceMpeg HLE converts the same frames the same way, so the pixel formats and the
studio-range setup come straight from MediaEngine::getSwsFormat. It is 3-4x
quicker than going a pixel at a time: 0.37-0.44ms a frame becomes 0.09-0.12ms,
which is the whole reason sceMpegBaseCscAvc was at the top of a profile.
Chroma is upsampled with SWS_POINT rather than the HLE's SWS_BILINEAR, since
replicating is what the scalar path does and, being a fixed-function block,
almost certainly what the hardware does.
It is not bit-identical - swscale rounds its own way. TestMpegCsc measures the
gap per channel rather than per byte, so the number means something for a packed
16-bit pixel: worst 1 step of 31 for 5650 and 5551, 2 of 15 for 4444, 3 of 255
for 8888, with means around a fifth of a step. The scalar path stays as what the
longhand reference is checked against, and takes anything swscale won't - an odd
range origin, or a build without ffmpeg.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
The colour conversion was writing alpha fully set - 0xFF000000, or the top bit
for 5551 - where the hardware writes zero. Our sceMpeg HLE already masks it off
and names Sword Art Online as a game that depends on it: it doesn't clear the
alpha in the buffer it hands over, and expects the video not to set it. The two
paths now agree.
The de-tiling ahead of it becomes UntileYCbCr, taking the eight buffers already
resolved, so it can be measured and compared against the original longhand
version in TestMpegCsc. Its planes move to scratch that persists between calls -
a movie converts one frame per displayed frame, and this was allocating and
clearing about 200KB every time - and the per-pixel bounds checks in the chroma
loop, which only depend on the group of eight, are hoisted out of it.
That last part is worth 2529 -> 3201 MPix/s, but the point of measuring was to
find out whether it mattered, and it doesn't much: de-tiling is 0.04ms of a
frame against the conversion's 0.4ms. The conversion is where the time is.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
sceMpegBaseCscAvc is the top of a profile during video playback, so the loop
that does the work becomes MpegCscRange - a pure function with the HLE plumbing
left behind - and TestMpegCsc measures and checks it.
The measuring half reports megapixels per second for a 480x272 frame in each of
the four pixel formats. The checking half compares against the conversion
written out longhand, over whole frames and over partial ranges with odd offsets
and sizes, plus one-pixel, one-row and one-column ranges and one that reaches
the far edge of the frame. Those are the cases an optimized version gets wrong:
chroma is half resolution, so an odd left edge starts mid-sample, and anything
handling two pixels at a time has to deal with the leftover. The destination is
padded and prefilled, so writing outside the range fails too.
This is only the move - the loop is the same one, so the numbers it gives are
the baseline to improve on. On a Snapdragon X Elite it runs at about 300 MPix/s,
0.44ms for a frame.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
libmp3.prx only accepts a rate other than 44.1kHz from a game built with SDK
3.09.05 or later, and audio/mp3/init has the hardware's answers for the rest.
PPSSPP has nonetheless accepted them from every game that declares an SDK
version, because the threshold was written as decimal 3090500 rather than
0x03090500 - an accident, but one people have come to rely on. Beats and games
like it build levels out of MP3s the user supplies, and refusing an ordinary
48kHz file looks like a bug to whoever supplied it.
So the hardware answer now goes only to something that declares no SDK version
at all, which in practice means the test, and the comment says that is a choice
rather than an oversight. Being strict again is a one-line change, with the two
lines it would cost named next to it.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
The field at 0x24 is a byte count, like srcBytesRead next to it, and
sceAudiocodecGetOutputBytes describes the same quantity the same way (0x1200
for MPEG1 MP3). We were putting the sample count there, a quarter of the value,
and libmp3.prx takes it as the length of the PCM to pass on. Renamed to
dstBytesWritten so it reads like what it is.
Nothing on our side consumed the field, so this only changes what the firmware
modules see. mpeg.prx ignores it, which is why Atrac3+ playback was unaffected
either way, but libatrac3plus.prx does read it.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
sceAudiocodecInit puts 9999 in the version field to mean "not known yet", and
filling it in is what this call is for - libmp3.prx reads it straight back out.
We wrote every other MP3 field and left that one alone, so the real libmp3.prx
got as far as GetInfo and then stopped without ever asking for a decode.
While here, read the fields off the frame rather than claiming 128kbps 44.1kHz
stereo unconditionally, which is what the hardware does with them. They are the
raw MPEG header fields apart from the version index, which has its own
numbering. The old fixed values stay as the fallback for when there is no
readable frame to look at.
Also carries a CheckNeedMem log tweak that was already in the tree.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
This is what sceMpegAvcCopyYCbCr is built on, and a game that wants the raw
YCbCr rather than letting sceMpegbase convert to RGB uses it and nothing else.
mpeg.prx builds the descriptor on its own stack and avcodec.prx reads it back at
0x800015c4. Dimensions in pixels at 0x00/0x04, the eight frame buffers from 0x0c
but ordered 0,2,4,6 then 1,3,5,7, and from 0x2c the destination Y with Cb and Cr
following it contiguously - ordinary planar YUV420. Checked against what the
game passes: the eight addresses are exactly the buffers we handed out, and the
three destinations are spaced width*height and width*height/4 apart.
Un-tiling is the same operation the colour conversion already does, so that
moves out of sceMpegbase.cpp as ReadTiledYCbCr rather than being written twice.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
--timeout was wall-clock seconds, which is what CI wants but not what you want
when the question is whether the game has had long enough to get somewhere: a
heavy scene runs many times slower than real time and a near-idle one much
faster, so the same budget means very different amounts of game time. Booting a
firmware VSH is a good example - 10 emulated seconds is about 25 real ones on
6.61 and about 7 on 2.00, and judging those two by the same wall-clock number
makes a working shell look stuck.
Both limits can be set at once and whichever is reached first ends the run,
which also says which one it was. --timeout still works as the old name for
--timeout-wall. The IsDebuggerPresent() exemption stays on the wall-clock check
only; the emulated one doesn't need it, since sitting at a native breakpoint
burns no emulated time.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
Both are ME round-trips that take real time on hardware, and returning from them
immediately matters beyond speed. Jak and Daxter deletes its video_sound_thread
straight after sceVideocodecDelete without waiting for it to exit. With no time
passing in the delete, the game's audio thread never gets to run once more and
deliver the wake that lets that thread notice the shutdown and exit, so
sceKernelDeleteThread fails with NOT_DORMANT and the thread stays alive. It is
then released from the event flag the game has just deleted, resumes on a
context that has already been freed - every id and pointer in it zero - and
copies from a null pointer.
2ms, chosen to sit above the 1.45ms an audio mix block takes. 100us was measured
to be too short, so the fix is the time passing rather than just the reschedule.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
The fast-forward flip limiter in __DisplayFlip kept its last-flip time in a
static local, so it survived a boot and the first flip of a new game was
compared against a timestamp from whatever ran before it. Move it up with the
other frame timing globals, which __DisplayInit already resets.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
sceMpeg and sceAudiocodec only cleared their context maps on shutdown, while
sceMpegbase and sceVideocodec clear theirs on init. Both maps are keyed on an
address the game chooses, and getMpegCtx reads its key straight out of game
memory, so anything left behind can be handed to the next game we run in the
same session. Clear them on init as well. sceVideocodec's init cleared its map
without deleting the decoders in it; use ClearContexts for that.
Headless never loads a config file, so every g_Config field it doesn't set
keeps the zero-initialized value rather than the ConfigSetting default.
bFuncReplacements is one of those, so headless was the only build running games
without function replacements - which is why a crash in Jak and Daxter's
memcpy_jak wouldn't reproduce there.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
sceAudiocodecCheckNeedMem set neededMem for every codec except AAC, where it
was left at whatever was in the context. Set it to 0x18f20 like the others; our
faked ME memory meant this never blocked, but a game that validates it could.
Also name the two hash-named sceVideocodec exports from their firmware
behaviour: 0x893B32B1 configures the codec during sceMpegCreate in mode 1
(SetMode), and 0xD95C24D5 copies a decoded YCbCr frame between buffers via the
ME (CopyYCbCr), the videocodec-level counterpart of sceMpegBaseYCrCbCopy. Both
are still stubs - only mpeg.prx calls them, on paths nothing we run reaches -
but they are now documented for whoever implements them.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
CalculateInputBytesAndChannelsAt3Plus only set the frame size for the four
bitrates it had a table entry for and left it at 0 otherwise, which fails the
decode - the same shape of bug the AAC path just had. formatByte2 * 8 + 8 is
the size for all four known bitrates, so use it for the rest too; the firmware
never returns 0 here. The common PSMF path is unaffected: it takes the size
from the frame's own header before reaching this.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
The AAC decode path read the frame size from srcBytesRead, which is an output
field the decoder writes - it's 0 on the first call, so the decoder was handed
0 readable bytes and audio never started. avcodec.prx's decodeUtility sizes the
AAC input from the byte at 0x2c instead: 0x609 when nonzero, 0x600 when zero.
Investigated after report by sum2012 in #16238. Not actually tested yet.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
Cut restatement and asides that only made sense against earlier, wrong versions
of the code, and prefer parentheses over paired dashes. Also fix two comments
left stale by the descriptor rework, and record the rule in AGENTS.md.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
Running a homebrew and seeing what it prints is the most basic thing
PPSSPPHeadless does, but sceIoWrite() to fd 1 and 2 only ever went into
the log, so it took -l to see any of it - which turns on every log
channel at debug level and buries the output.
The debug-output listener now gets a channel, and headless writes StdOut
and StdErr straight through to the host's, unmodified. With no listener
(the normal app) the old sanitized Log::Printf line is unchanged.
pspautotests writes exclusively to the "emulator:" devctl channel, so
nothing there moves; --compare and --bench suppress the forwarding along
with the debug channel, keeping test console output as it was.
Also fixes a potential one-byte OOB read in the same path when an
unmapped address clamps validSize to 0 with size > 0.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
sceMpegBaseCscAvc/CscAvcRange run on the DMACPLUS and take real time. A
psmfplayer game re-blits the current video frame every render frame while it
waits for the next, so an instant return here is a tight loop that never yields
and starves the audio thread the playback clock is paced by - the whole A/V
pipeline then deadlocks a few frames into the movie. SOCOM: Tactical Strike
hung exactly this way running the real mpeg.prx; with the delay it plays. Same
value and reason as our sceMpeg HLE's sceMpegAvcCsc.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
mpeg.prx reads the eight frame buffer addresses straight off the front of the
structure sceVideocodec publishes - `lw` at 0x00..0x1C, the same in Daxter's
disc copy (1.3, at 08805698) and in flash0:/kd/mpeg.prx (1.8, at 08805898) -
and takes the dimensions from its own context. We were writing the dimensions
at 0x00/0x04 and the buffers at 0x10, so slots 0 and 1 received 17 and 30 and
the four chroma addresses never arrived at all.
That survived in Daxter only by cancelling out: mpeg.prx hands the same words
back in the descriptor it builds for the colour conversion, which read them
with the same skew. It bites as soon as they are used as real addresses.
So also:
- sceMpegBaseYCrCbCopy moves the frame, rather than copying 48 bytes of
descriptor over the caller's table of destination pointers. mpegbase.prx
builds a DMA list over the eight buffers (080010f8 in mpegbase_260.prx):
flags bit 0 takes 0,1,4,5 and bit 1 takes 2,3,6,7. mpeg.prx always passes 3.
- The chroma buffers are paired like the luma ones, left/right then even/odd
rows, which is what that flag split assumes. Ours grouped them by half, so
the per-buffer sizes disagreed with the caller's.
- The conversion reads the descriptor as mpegbase.prx does, and takes the
buffers from wherever they are: still in the Media Engine, or already copied
into the game's memory.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
The CSC writes RGB straight into the display buffer, which the hardware
backends can't see on their own - our sceMpegAvcCsc HLE calls
PerformWriteFormattedFromMemory for exactly this reason, and the mpegbase
path didn't. Daxter's intro decoded normally with the screen frozen on the
menu behind it. Invisible under --graphics=software, which reads that memory
directly.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
An allocator that nothing has Init'd yet is a real state, not a broken one -
sceVideocodec keeps one for Media Engine memory that stays empty until a game
plays a video - but DoState asserted on bottom_ when writing, and on reading
treated a block count of zero as corrupt. Both ends handle it now, and the
write loop no longer special-cases the first block.
The stream layout is unchanged, so states written before this still load: they
always had at least one block, and take the same path they always did.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
Deleting a savestate from the savedata screen goes through GameInfo::Delete,
not SaveState::DeleteSlot, and it only knew about the .jpg - so the slot's
.name.txt was left behind with nothing to belong to.
Rather than teach the UI the naming scheme a third time, SaveState now answers
what sits beside a state.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
GetSlotCustomName hit the disk for every slot each time the pause screen built
its views, almost always for a file that isn't there. Rescan's listing already
knows, and HasSaveInSlot - which gates whether the name is even shown - reads
the same map, so this can't hide a name the old code would have found.
SetSlotCustomName now rescans, so a rename is visible without depending on the
pause screen happening to rescan on its way back.
Also: clearing a name deletes the file instead of leaving an empty one behind,
and the extension is "name.txt" rather than plain "txt", so an unrelated
"<prefix>_<slot>.txt" in the savestate folder isn't read as a slot name.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
