[mapserver-users] Floating point exception agg png

[Daniel Degasperi]

Ok, ticket created at http://trac.osgeo.org/mapserver/ticket/3760 and 
necessary files attached.

Daniel

Am 21/03/2011 15:03, schrieb thomas bonfort:
> Daniel,
> any chance you can create a ticket for that with a mapfile and sample
> data that reproduces it ?
> the png vs. jpeg should not intervene as at the point the error is
> occuring the code path has been nearly identical (i.e. no png or jpeg
> library calls have been made yet).
>
> thomas
>
> On Mon, Mar 21, 2011 at 14:47, Daniel Degasperi
> <daniel.degasperi at r3-gis.com>  wrote:
>> Hi,
>> I'v encountered following problem with outputformat png (agg driver):
>>
>> shp2img -m /data/sites/R3-MTB-Public/sito/etc/goldart/mtb.map -l "ropeway"
>> -e 667072.437052 5153904.693426 677867.431220 5164699.687594 -s 1224 1224 -o
>> test-mtb.png -all_debug 1 (i got a FPE)
>>
>> The debugger backtrace gives me:
>>
>> Program received signal SIGFPE, Arithmetic exception.
>> 0x00000000004ba89e in
>> mapserver::line_image_pattern<mapserver::pattern_filter_bilinear_rgba<mapserver::rgba8>
>>> ::pixel (this=0x7fffffffc940, p=0x7fffffffc43c, x=82, y=-757)
>>     at renderers/agg/include/agg_renderer_outline_image.h:173
>> 173                 m_filter->pixel_high_res(m_buf.rows(),
>> (gdb) bt
>> #0  0x00000000004ba89e in
>> mapserver::line_image_pattern<mapserver::pattern_filter_bilinear_rgba<mapserver::rgba8>
>>> ::pixel (this=0x7fffffffc940, p=0x7fffffffc43c, x=82, y=-757)
>>     at renderers/agg/include/agg_renderer_outline_image.h:173
>> #1  0x00000000004ba8fb in
>> mapserver::renderer_outline_image<mapserver::renderer_base<mapserver::pixfmt_alpha_blend_rgba<mapserver::blender_rgba_pre<mapserver::rgba8,
>> mapserver::order_bgra>, mapserv_row_ptr_cache<int>, int>  >,
>> mapserver::line_image_pattern<mapserver::pattern_filter_bilinear_rgba<mapserver::rgba8>
>>>> ::pixel (this=0x7fffffffc9e0, p=0x7fffffffc43c, x=82, y=-757)
>>     at renderers/agg/include/agg_renderer_outline_image.h:860
>> #2  0x00000000004bafba in
>> mapserver::line_interpolator_image<mapserver::renderer_outline_image<mapserver::renderer_base<mapserver::pixfmt_alpha_blend_rgba<mapserver::blender_rgba_pre<mapserver::rgba8,
>> mapserver::order_bgra>, mapserv_row_ptr_cache<int>, int>  >,
>> mapserver::line_image_pattern<mapserver::pattern_filter_bilinear_rgba<mapserver::rgba8>
>>>>> ::step_hor (this=0x7fffffffc1c0)
>>     at renderers/agg/include/agg_renderer_outline_image.h:668
>> #3  0x00000000004bb27f in
>> mapserver::renderer_outline_image<mapserver::renderer_base<mapserver::pixfmt_alpha_blend_rgba<mapserver::blender_rgba_pre<mapserver::rgba8,
>> mapserver::order_bgra>, mapserv_row_ptr_cache<int>, int>  >,
>> mapserver::line_image_pattern<mapserver::pattern_filter_bilinear_rgba<mapserver::rgba8>
>>>> ::line3_no_clip (this=0x7fffffffc9e0, lp=..., sx=105681, sy=155778,
>> ex=101946, ey=147898)
>>     at renderers/agg/include/agg_renderer_outline_image.h:931
>> #4  0x00000000004c99f9 in
>> mapserver::renderer_outline_image<mapserver::renderer_base<mapserver::pixfmt_alpha_blend_rgba<mapserver::blender_rgba_pre<mapserver::rgba8,
>> mapserver::order_bgra>, mapserv_row_ptr_cache<int>, int>  >,
>> mapserver::line_image_pattern<mapserver::pattern_filter_bilinear_rgba<mapserver::rgba8>
>>>> ::line3 (this=0x7fffffffc9e0, lp=..., sx=105681, sy=155778, ex=101946,
>> ey=147898)
>>     at renderers/agg/include/agg_renderer_outline_image.h:992
>> #5  0x00000000004cc5b9 in
>> mapserver::rasterizer_outline_aa<mapserver::renderer_outline_image<mapserver::renderer_base<mapserver::pixfmt_alpha_blend_rgba<mapserver::blender_rgba_pre<mapserver::rgba8,
>> mapserver::order_bgra>, mapserv_row_ptr_cache<int>, int>  >,
>> mapserver::line_image_pattern<mapserver::pattern_filter_bilinear_rgba<mapserver::rgba8>
>>>> , mapserver::line_coord_sat>::render (this=0x7fffffffc9a0,
>>     close_polygon=false) at
>> renderers/agg/include/agg_rasterizer_outline_aa.h:540
>> #6  0x00000000004cc9b5 in
>> mapserver::rasterizer_outline_aa<mapserver::renderer_outline_image<mapserver::renderer_base<mapserver::pixfmt_alpha_blend_rgba<mapserver::blender_rgba_pre<mapserver::rgba8,
>> mapserver::order_bgra>, mapserv_row_ptr_cache<int>, int>  >,
>> mapserver::line_image_pattern<mapserver::pattern_filter_bilinear_rgba<mapserver::rgba8>
>>>> , mapserver::line_coord_sat>::add_path<line_adaptor>  (
>>     this=0x7fffffffc9a0, vs=..., path_id=0) at
>> renderers/agg/include/agg_rasterizer_outline_aa.h:177
>> #7  0x00000000004cca3f in
>> AGGMapserverRenderer::renderPathPixmapBGRA<line_adaptor>  (this=0xf74350,
>> line=..., pattern=...) at mapagg.cpp:392
>> #8  0x00000000004cccea in
>> AGGMapserverRenderer::renderPolylineVectorSymbol<line_adaptor,
>> mapserver::conv_stroke<mapserver::path_base<mapserver::vertex_block_storage<double,
>> 8u, 256u>  >, mapserver::null_markers>  >  (this=0xf74350, shape=...,
>> symbol=..., tilewidth=0, tileheight=5, color=..., backgroundcolor=...) at
>> mapagg.cpp:370
>> #9  0x00000000004a9b21 in msDrawLineSymbolAGG(._98 *, ._105 *, ._39 *, ._91
>> *, double) (symbolset=0x822ae0, image=0x937b30, p=0x7fffffffd310,
>> style=0x87e230, scalefactor=1.3333333333333333)
>>     at mapagg.cpp:1723
>> #10 0x000000000053d573 in msDrawLineSymbol (symbolset=0x822ae0,
>> image=0x937b30, p=0x7fffffffd310, style=0x87e230,
>> scalefactor=1.3333333333333333) at maprendering.c:488
>> #11 0x0000000000485521 in msDrawShape (map=0x822ab0, layer=0x87c820,
>> shape=0x7fffffffd310, image=0x937b30, style=0, querymapMode=0) at
>> mapdraw.c:1962
>> #12 0x000000000047fe20 in msDrawVectorLayer (map=0x822ab0, layer=0x87c820,
>> image=0x937b30) at mapdraw.c:1032
>> #13 0x000000000047f32e in msDrawLayer (map=0x822ab0, layer=0x87c820,
>> image=0x937b30) at mapdraw.c:822
>> #14 0x000000000047e1e5 in msDrawMap (map=0x822ab0, querymap=0) at
>> mapdraw.c:468
>> #15 0x0000000000440b32 in main (argc=17, argv=0x7fffffffd848) at
>> shp2img.c:292
>>
>> When I switch to outputformat jpeg (agg driver) everything is fine.
>>
>> MapServer is 5.6.6 on 64bit CentOS 5.5
>>
>> Best regards,
>> Daniel
>>
>> --
>> Daniel Degasperi R3 GIS Srl - GmbH www.r3-gis.com
>> _______________________________________________
>> mapserver-users mailing list
>> mapserver-users at lists.osgeo.org
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>>


-- 
Daniel Degasperi R3 GIS Srl - GmbH www.r3-gis.com