Port of glide wrapper with hardware frame buffer emulation

[Kitof]

Hi all,

I have a seg fault with this plugin. I paste the backtrace here :

[New Thread 4089883536 (LWP 20307)]
byteswaping rom...
rom byteswaped
rom loaded succesfully
80 37 12 40
ClockRate=f
Version:1446
CRC: a03cf036 bcc1c5d2
name: SUPER MARIO 64
Manufacturer: Nintendo
Cartridge_ID: 4d53
European cartridge
size: 4096
PC= 80241800
md5 code:9EE432F07F1E4E9A13CD0090CCC5A94B
memory initialized
fb_clear 1 fb_smart 0
test1
test2
test3
test4
extensions 'CHROMARANGE TEXCHROMA TEXMIRROR PALETTE6666 FOGCOORD EVOODOO TEXTUREBUFFER TEXFMT COMBINE'
fb_hires
(II) Initializing SDL video subsystem...
(II) Getting video info...
(II) Setting video mode 1024x768...
packed pixels extension used
use_fbo 0
num_tmu 2
bebefore
bebefore2
before
after
tbuf_size 2Mb
demarrage r4300
interpreter

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 4089883536 (LWP 20307)]
0x00000000 in ?? ()
(gdb) backtrace
#0  0x00000000 in ?? ()
#1  0xf47bfe93 in grConstantColorValueExt (tmu=0, value=0)
    at wrapper/combiner.cpp:3775
#2  0xf4793dfb in TexCache () at TexCache.cpp:807
#3  0xf477fbae in DrawImage (d=0xf3c69ff4) at ucode06.h:486
#4  0xf4780f9b in drawViRegBG () at ucode06.h:1685
#5  0xf476d025 in UpdateScreen () at Main.cpp:1706
#6  0x080787b3 in gen_interupt ()
#7  0x00000040 in ?? ()
#8  0x08066126 in write_rdram ()
#9  0x080edb98 in ?? ()
#10 0x0767d7f2 in ?? ()
#11 0x088067a0 in reg_cop1_simple ()
#12 0x084065d4 in llbit ()
#13 0x0805e240 in BEQ ()
#14 0x00080242 in ?? ()
#15 0x09edfe38 in ?? ()
#16 0x08806848 in delay_slot ()
#17 0x080edb98 in ?? ()
#18 0x084065d4 in llbit ()
#19 0xe6b838dc in ?? ()
#20 0x084066e4 in local_rs32 ()
#21 0x0805e2b9 in BEQ_IDLE ()
---Type <return> to continue, or q <return> to quit---
#22 0x08079257 in ERET ()
#23 0x0805cf3a in go ()
#24 0x091c6a30 in vi_register ()
#25 0x091c6a34 in vi_register ()
#26 0x53092230 in ?? ()
#27 0x52455055 in ?? ()
#28 0x52414d20 in ?? ()
#29 0x36204f49 in ?? ()
#30 0x00000400 in ?? ()
#31 0x080edb98 in ?? ()
#32 0x080f01b8 in romClosed_gfx ()
#33 0x09cfd0d0 in ?? ()
#34 0x09d04d58 in ?? ()
#35 0x080b63ac in get_savespath ()
#36 0x09cfd0d0 in ?? ()
#37 0x09d04d58 in ?? ()
#38 0x09d08168 in ?? ()
#39 0x09d08cc0 in ?? ()
#40 0x00000000 in ?? ()
(gdb) exit

Have you any idea ?

My proc is an AMD64, but i compiled with 32bits libraries and -m32 CFLAGS.

[ziggy]

Apparently , your graphics card or driver does not support GLSL (vertex and pixel shader programs) You should disable them in the options of the plugins. Currently there's no sanity check for GLSL, I'll add that later on.

EDIT : Sri Narayan, thanks for the patch, I'll include this in the next release.

[Nonno Cicala]

Hi ziggy. Here's the snapshot.

[Gonetz]

It's plugin's issue indeed. Thanks for bug report and save!

Edit: Ops, no. It's not plugin's issue. Here the screen shot from my Voodoo2:
[img=http://img228.imageshack.us/img228/4181/dkrnoseai0.th.jpg]

[ziggy]

Hmm my guess was wrong then. At least I suppose it depth bias issue, in this case it means depth bias is still not scaled correctly in the wrapper. To fix that, I'd need your help Gonetz. The idea would be as follow if you agree : I ll send you three game snapshots, and you send me back the corresponding snapshot of the depth buffer content in your voodoo card, so that I'll be able to work out exactly how the depth bias should be.

Before that, just to check we are using the same settings, in my Glide64.ini file the default depth bias value is 20, and there aren't any entry for diddy kong racing.

[Gonetz]

Ok. My ini settings are the same.
The bug itself seems to be quite old. It was here before mudlord and you started to modify the wrapper.

[ziggy]

Ok, thanks for the depth buffer snapshots Gonetz, problem should now be fixed, all it required was to divide by two the factor used in the wrapper. With this, I get nearly identical depth buffers even in parts where there's a depth bias. That should fix all depth bias issues once and for all

Here's a new release , it fixes this depth issue, also it adds support for 32b textures and it includes patch by Sri Narayan to support FreeBsd.

[Tillmann]

Thanks forever Ziggy!

[GarulfoLinux]

I try to compile the source code on FreeBSD but without result .

[Sri Narayan]

You have to use gmake not make!
also load linprocfs to /proc