Keith Whitwell wrote:Certainly.
Roland Scheidegger wrote:
I get a lot of dri crashes, were there some changes very recently in the tnl code? The crashes sometimes are predictable (for instance in the old ut it'll always crash in the intro when the announcer says "in twenty-two ninety-" segfault!)
gdb says this:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1024 (LWP 4566)]
0x458bce72 in ?? ()
(gdb) bt
#0 0x458bce72 in ?? ()
#1 0x3cace852 in neutral_VertexAttrib2fvNV (index=9, v=0xa3812f4) at vtxfmt_tmp.h:384
#2 0x3ca40c41 in _ae_loopback_array_elt (elt=28) at api_arrayelt.c:828
#3 0x3cb2be5a in fallback_drawarrays (ctx=0x9, mode=171750408, start=29, count=34) at t_array_api.c:57
#4 0x3cb2c36d in _tnl_DrawArrays (mode=6, start=6, count=171564768) at t_array_api.c:153
This looks like something which Brian has been working on recently.
Roland, can you back up to _ae_loopback_array_elt() and 'print *at->array'?
#2 0x3ca40c41 in _ae_loopback_array_elt (elt=28) at api_arrayelt.c:828
828 at->func( at->index, src );
(gdb) print *at->array
$1 = {Size = 2, Type = 5126, Stride = 24, StrideB = 24, Ptr = 0xa38104c "ø\005\202?ø\005\202?", Enabled = 1,
Normalized = 0 '\0', BufferObj = 0xa39aae0, _MaxElement = 2000000000, Flags = 1}
My guess is that the src pointer is invalid for some reason. The pointer arithmetic looks OK though.#2 0x3ca40c41 in _ae_loopback_array_elt (elt=28) at api_arrayelt.c:828
Basically, the glArrayElement() fallback code wasn't handling glVertexAttrib arrays. I added that and expressed the multi-texcoord arrays in terms of vertex attribs. Vertex attribute 9 corresponds to texcoord array 1.
In gdb, also check if at->array == ctx->Array.TexCoord[1].
828 at->func( at->index, src );
(gdb) print at->array
$4 = (const struct gl_client_array *) 0xa3b2c38
(gdb) print ctx->Array.TexCoord[1]
Cannot access memory at address 0x14d89
(2 levels up)
#4 0x3cb2c36d in _tnl_DrawArrays (mode=6, start=6, count=171564768) at t_array_api.c:153
153 fallback_drawarrays( ctx, mode, start, start + count );
(gdb) print ctx->Array.TexCoord[1]
$5 = {Size = 2, Type = 5126, Stride = 24, StrideB = 24, Ptr = 0xa381054 "", Enabled = 1, Normalized = 0 '\0',
BufferObj = 0xa39aae0, _MaxElement = 2000000000, Flags = 1}
Roland
------------------------------------------------------- The SF.Net email is sponsored by EclipseCon 2004 Premiere Conference on Open Tools Development and Integration See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. http://www.eclipsecon.org/osdn -- _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
