On Mon, Dec 09, 2002 at 10:30:35PM +0000, Keith Whitwell wrote:
> Charl P. Botha wrote:
> >On Mon, Dec 09, 2002 at 09:45:12PM +0000, Keith Whitwell wrote:
> >>There's a fix for this in recent cvs:
> >>
> >> /* Mask out highest bit, which is used by AMD for 3dnow
> >> * Newer Intel have this bit set, but do not support 3dnow
> >> */
> >> AND_L ( CONST(0X7FFFFFFF), EAX)
> >
> >
> >I still could reproduce this SIGFPE with yesterday's CVS. I just did a
> >grep
> >though all the .c and .h files in my DRI CVS tree for "Mask out highest
> >bit"
> >but could not find the above. In which file should this be?
>
> xc/extras/Mesa/src/X86/common_x86_asm.S
Okay, I just checked and I can still reproduce a SIGFPE with today's CVS.
I've made doubly sure that the new libGL is used. Here is a backtrace:
Program received signal SIGFPE, Arithmetic exception.
0x4246fe4a in _mesa_sse_transform_points3_general ()
from /usr/X11R6/lib/modules/dri/radeon_dri.so
(gdb) bt
#0 0x4246fe4a in _mesa_sse_transform_points3_general ()
from /usr/X11R6/lib/modules/dri/radeon_dri.so
#1 0x0840b6a0 in ?? ()
#2 0x4246c634 in init_vertex_stage (ctx=0x828d0e0, stage=0x840b174)
at t_vb_vertex.c:286
#3 0x42427965 in _tnl_run_pipeline (ctx=0x828d0e0) at t_pipeline.c:154
#4 0x4247e36a in radeonWrapRunPipeline (ctx=0x828d0e0) at radeon_state.c:2089
#5 0x4242617b in _tnl_run_cassette (ctx=0x828d0e0, IM=0x8411f60)
at t_imm_exec.c:399
#6 0x424261dc in exec_vert_cassette (ctx=0x828d0e0, IM=0x8411f60)
at t_imm_exec.c:424
#7 0x4242635a in _tnl_execute_cassette (ctx=0x828d0e0, IM=0x8411f60)
at t_imm_exec.c:493
#8 0x4241d74a in _tnl_flush_immediate (ctx=0x0, IM=0x8411f60)
at t_imm_api.c:77
#9 0x4241e5f1 in _tnl_Vertex3f (x=39.2000008, y=46.7999992, z=17)
at t_imm_api.c:834
#10 0x422ca718 in DrawVoxelSplat (Dptr=0x46e3931c, octantIdx=@0xbfffe657,
y=@0xbfffe658, z=@0xbfffe65c, prev_colour=0xbfffe8e0, ambient=@0xbfffe660,
diffuse=@0xbfffe664, u=0xbfffe8a0, v=0xbfffe8b0)
at
/home/cpbotha/work/code/vtkcpbotha/Rendering/vtkOpenGLVolumeShellSplatMapper.cxx:113
DrawVoxelSplat is simply rendering oodles and oodles of textured quads. Any
ideas?
--
charl p. botha http://cpbotha.net/ http://visualisation.tudelft.nl/
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