I can reproduce this here too. I got a backtrace (see below) and took a
look around s_linetemp.h. There is no INTERP_W for lines so the
assertion must fail for textured lines.
Don't worry about the segfault, that's my own assert macro. Without that
I can't get a backtrace with my gdb+glibc combination. For the same
reason line numbers are off by 7 in s_span.c (sorry for the
inconvenience).
s_span.c(572): interpolate_texcoords: Assertion 'span->interpMask & SPAN_W' failed.
Program received signal SIGSEGV, Segmentation fault.
0x4078a369 in interpolate_texcoords (ctx=0x80d6740, span=0xbfffee50)
at s_span.c:573
573 for (i = 0; i < span->end; i++) {
(gdb) bt
#0 0x4078a369 in interpolate_texcoords (ctx=0x80d6740, span=0xbfffee50)
at s_span.c:573
#1 0x40788f45 in _swrast_write_texture_span (ctx=0x80d6740, span=0xbfffee50)
at s_span.c:1384
#2 0x4077e040 in textured_line (ctx=0x80d6740, vert0=0xbffff150,
vert1=0xbffff1f4) at s_linetemp.h:428
#3 0x40774937 in _swrast_validate_line (ctx=0x80d6740, v0=0xbffff150,
v1=0xbffff1f4) at s_context.c:299
#4 0x40773ec6 in _swrast_Line (ctx=0x80d6740, v0=0xbffff150, v1=0xbffff1f4)
at s_context.c:497
#5 0x408154ba in savage_fallback_line (imesa=0x80d5fa0, v0=0x489fe020,
v1=0x489fe040) at savagetris.c:464
#6 0x4080de45 in line_fallback (ctx=0x80d6740, e0=0, e1=1)
at /home/src/mesa/trunk/Mesa/src/mesa/tnl_dd/t_dd_tritmp.h:640
#7 0x407c7bea in _tnl_render_lines_verts (ctx=0x80d6740, start=0, count=8,
flags=49) at t_vb_rendertmp.h:92
#8 0x407c90a3 in run_render (ctx=0x80d6740, stage=0x826046c)
at t_vb_render.c:323
#9 0x407b4ebb in _tnl_run_pipeline (ctx=0x80d6740) at t_pipeline.c:159
#10 0x407d4078 in _tnl_flush_vtx (ctx=0x80d6740) at t_vtx_exec.c:282
#11 0x407d086c in _tnl_FlushVertices (ctx=0x80d6740, flags=1)
at t_vtx_api.c:833
#12 0x406ff80f in _mesa_set_enable (ctx=0x80d6740, cap=2852, state=0 '\0')
---Type <return> to continue, or q <return> to quit---q
at enQuit
On Fri, 23 Apr 2004 01:31:35 +0100
Sérgio Monteiro Basto <[EMAIL PROTECTED]> wrote:
> Hi
> today after update srcs from cvs trunk (Mesa, drm and xc )
>
> got this error on foobillard 2.9, I send gdb of the bug in debug.txt
> file.
>
> thanks
> --
> Sérgio M. B.
>
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