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BT410 5.3.60: first rendered frame from a running reconstructed mission

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emulator/render-bridge/first_mission_frame.png -- arena city, textured
buildings, horizon, 28fps, captured from the GL bridge while our build ran a
live mission with the mech walking.  The skeleton went in with it:
[skl] video\mad.skl -> 26 nodes, 19 objects.

Corrects yesterday's RIO framing.  I called serial1 an unplugged cable.  Wrong
twice: VRio.App is running on this rig (the dev-rig default since 7/17), and
the emulator log recorded real byte counts on that port -- RX overruns of 471,
503, 528 -- which an unconnected pipe cannot produce.  The port was LIVE and
streaming during every crashing run.

So the defect is not that we mishandle a disconnected port, it is that we
mishandle a live RIO stream, which is worse: every production pod has a real
RIO.  The shipped binary on the same rig logs 'lost RIO analog request', keeps
sending characters, and runs the mission; ours logs 'RIO never came back from
test mode!' and dies partway through the load.  The overrun counts say the
guest is not draining the port fast enough.  L4RIO.CPP's handshake is authentic
archive code, but MechRIOMapper (BT/MECHMPPR.CPP) is ours -- that is the thread.

pod_render_norio.conf stays the way to get a running mission today, but it is a
workaround: it disables the cockpit's primary input device.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Cyd
2026-07-28 23:33:08 -05:00
co-authored by Claude Fable 5
parent 475ae3106e
commit 9c959e6891
6 changed files with 1095 additions and 13 deletions
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emulator/render-bridge/dosboxlog.txt
+20
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@@ -50,3 +50,23 @@ LOG: ISA Plug & Play BIOS enabled
LOG: VGA ROM BIOS init callback
LOG: pixratio 1.000, dw false, dh false
LOG: Aspect ratio: 640 x 480 xToY=1.333 yToX=0.750
LOG: WARNING: No translation support (to host) for code page 0
LOG: DOS keyboard layout loaded with main language code US for layout us
LOG: XMS: 50 handles allocated for use by the DOS environment
LOG: EMS page frame at 0xe000-0xefff
LOG: COMMAND.COM env size: 720 bytes
LOG: COMMAND.COM environment block: 0x0701 sz=0x002d
LOG: COMMAND.COM main body (PSP): 0x072f sz=0x009a
LOG: COMMAND.COM stack: 0x0749
LOG: pixratio 1.350, dw false, dh false
LOG: Aspect ratio: 720 x 540 xToY=1.333 yToX=0.750
LOG: SHELL:Redirect output to COM3
VPX lights@f1: type6=0 typeE=0 decoded=0 dir=0 amb(0.00,0.00,0.00)
LOG: 174850752 ERROR MOUSE:Unhandled videomode 79 on reset
LOG: pixratio 1.000, dw false, dh false
LOG: Aspect ratio: 640 x 480 xToY=1.333 yToX=0.750
VPX lightnode t=6 nb=52: [8]00000000/0 [12]00000000/0 [16]00000001/1.4013e-45 [20]3f800000/1 [24]3f800000/1 [28]3f800000/1 [32]64078678/1e+22 [36]64078678/1e+22 [40]3f7c6c01/0.986023 [44]3ce1d649/0.027568 [48]ffffffff/nan
VPX lights@f121: type6=2 typeE=9 decoded=2 dir=1 amb(0.55,0.50,0.65)
L0 dir(0.11,0.77,0.63) col(1.10,0.90,1.00)
VPX lights@f241: type6=2 typeE=10 decoded=2 dir=1 amb(0.55,0.50,0.65)
L0 dir(0.11,0.77,0.63) col(1.10,0.90,1.00)