* loader: keep the output of a process LoadExec relaunches
LoadExec on Windows starts a new emulator process and exits the current
one. The new process was created without a console and without the
standard handles, so everything it printed was lost: a redirected log of
a game that relaunches itself ended at the relaunch.
Hand the new process the standard input, output and error handles,
inheriting only those, and let it share the console when there is one.
* loader: flush output before LoadExec starts the new program
On Windows, LoadExec flushed the C streams only after the new process
had been created, so output the old process still held could appear
after the new one's first lines. On Linux they were not flushed at all
before exec, which discards them.
Flush the log and every stream before starting the new program.
* loader: continue the log file across LoadExec
With --printf-direction File, the program LoadExec starts is given the
same --printf-output-file and opened it anew, emptying it. Everything
the first program had logged, its LoadExec line included, was lost.
LoadExec now sets KYTY_RELAUNCHED for the program it starts, which then
appends to the log file instead of replacing it. On Linux the variable
goes into the environment passed to exec rather than this process's
own, which other threads may be reading.
* loader: show LoadExec switches on the console
LoadExec logged the program it switched to only when guest output was
logged, and then only into the log: on a console the new program's
startup output followed the old one's without anything marking where
one program ended and the next began.
Write the switch to the console as well as the log, with the program's
arguments.
* shader: pack v_cvt_pkrtz_f16_f32 with the native half conversion
The round-toward-zero pack was emulated with integer operations: about 20 to 30 operations
per half. GTA V uses it in 613 of its 656 pixel shaders, about 16 times in each G-buffer
pixel shader.
The pair is now packed with PackHalf2x16, unpacked again, and each half whose magnitude
exceeds its input's takes one unit off. Half signs and magnitudes are separate, so that is
the next value toward zero, whatever rounding the native conversion uses as long as it
returns one of the two neighbours. Same bits as before for every finite input and infinity;
a NaN stays a NaN. Checked against the old code on 2 million values on the CPU, and on an
Apple M5 GPU through Metal (400 000 values, subnormals included, safe and fast math).
GTA V on an Apple M5 (MoltenVK), 1080p, fixed script camera, three places, A B B A between
launches: -1.7 to -2.8 ms per frame (+4 to +6 %).
Scope: generic
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* shader: remove half-pack commentary and unused shift helper
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: nmzik <Nmzik@mail.ru>
* agc: Cleanup names so they match NIDs
Simple commit tidying up libSceAgc function names so they match their
NIDs. This just a tidy-up commit that makes it more obvious what each
function is.
* agc: Preserve unknown fused shader size name
shadowbeat070