Aapo Tahkola wrote:
> On Mon, 07 May 2007 08:40:14 -0600
> Brian Paul <[EMAIL PROTECTED]> wrote:
>
>> Aapo Tahkola wrote:
>>> bt:
>>>
>>> -([EMAIL PROTECTED])-( /media/movies/r300/mesa/progs/tests )
>>> gdb ./dinoshade GNU gdb 6.4.90-debian
>>> Copyright (C) 2006 Free Software Foundation, Inc.
>>> GDB is free software, covered by the GNU General Public License, and
>>> you are welcome to change it and/or distribute copies of it under
>>> certain conditions. Type "show copying" to see the conditions.
>>> There is absolutely no warranty for GDB. Type "show warranty" for
>>> details. This GDB was configured as "i486-linux-gnu"...Using host
>>> libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
>>>
>>> (gdb) run
>>> Starting program: /media/movies/r300/mesa/progs/tests/dinoshade
>>> Failed to read a valid object file image from memory.
>>> [Thread debugging using libthread_db enabled]
>>> [New Thread -1212836176 (LWP 4514)]
>>> *********************************WARN_ONCE*********************************
>>> File r300_render.c function r300Fallback line 421
>>> Software fallback:ctx->Stencil._TestTwoSide &&
>>> (ctx->Stencil.Ref[0] != ctx->Stencil.Ref[1] ||
>>> ctx->Stencil.ValueMask[0] != ctx->Stencil.ValueMask[1] ||
>>> ctx->Stencil.WriteMask[0] != ctx->Stencil.WriteMask[1])
>>> ***************************************************************************
>>>
>>> Program received signal SIGSEGV, Segmentation fault.
>>> [Switching to Thread -1212836176 (LWP 4514)]
>>> 0xb7a794ef in quadfunc_unfilled_rgba (ctx=0x805dd80, v0=2, v1=0,
>>> v2=1, v3=3) at swrast_setup/ss_tritmp.h:201
>>> 201 GLubyte ef1 = VB->EdgeFlag[v1];
>> That line would be hit when drawing a GL_QUAD with GL_POLYGON_MODE =
>> GL_LINE or GL_POINT.
>>
>> Can you verify that's true?
>> Is VB->EdgeFlag NULL?
>
> (gdb) print VB->EdgeFlag
> $1 = (GLboolean *) 0x0
> (gdb) print ctx->Polygon.FrontMode
> $2 = 6914
> (gdb) print /x ctx->Polygon.FrontMode
> $3 = 0x1b02
> (gdb) print /x ((TNLcontext *)((ctx)->swtnl_context))->vb
> $4 = {Size = 0xbd1, Count = 0x2e, Elts = 0x0, ObjPtr = 0x80ca678,
> EyePtr = 0x80caa88, ClipPtr = 0x80caaa4, NdcPtr = 0x80caac0,
> ClipOrMask = 0x0, ClipAndMask = 0x0, ClipMask = 0x80ee2c0,
> NormalPtr = 0x80ee29c, NormalLengthPtr = 0x0, EdgeFlag = 0x0,
> TexCoordPtr = { 0x80ca758, 0x80ca774, 0x80ca790, 0x80ca7ac, 0x80ca7c8,
> 0x80ca7e4, 0x80ca800, 0x80ca81c}, IndexPtr = {0x80ca720, 0x0}, ColorPtr
> = {0x80fac14, 0x0}, SecondaryColorPtr = {0x80ca6e8, 0x0}, FogCoordPtr =
> 0x80ca704, Primitive = 0x80b6acc, PrimitiveCount = 0x1, AttribPtr =
> {0x80caac0, 0x80ca694, 0x80ee29c, 0x80fac14, 0x80ca6e8, 0x80ca704,
> 0x80ca720, 0x80ca73c, 0x80ca758, 0x80ca774, 0x80ca790, 0x80ca7ac,
> 0x80ca7c8, 0x80ca7e4, 0x80ca800, 0x80ca81c, 0x80ca838, 0x80ca854,
> 0x80ca870, 0x80ca88c, 0x80ca8a8, 0x80ca8c4, 0x80ca8e0, 0x80ca8fc,
> 0x80ca918, 0x80ca934, 0x80ca950, 0x80ca96c, 0x80ca988, 0x80ca9a4,
> 0x80ca9c0, 0x80ca9dc}}
> (gdb) print /x ((TNLcontext *)((ctx)->swtnl_context))->vb.Primitive[0]
> $5 = {mode = 0x8, indexed = 0x0, begin = 0x1, end = 0x1, weak = 0x0,
> pad = 0x0, start = 0x0, count = 0x2e}
>
> (gdb) print /x ctx->Polygon.FrontMode
> $3 = 0x1b02
And ctx->Polygon.BackMode?
> So no, no, yes.
I suggest you investigate why/how quadfunc_unfilled_rgba() is getting
called if the front/back polygon mode is GL_FILL.
-Brian
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