[postgis-tickets] [PostGIS] #4102: rt_grayscale fails on raspberrypi

[PostGIS]

#4102: rt_grayscale fails on raspberrypi
---------------------+---------------------------
  Reporter:  komzpa  |      Owner:  Bborie Park
      Type:  defect  |     Status:  new
  Priority:  medium  |  Milestone:  PostGIS 2.5.0
 Component:  raster  |    Version:  trunk
Resolution:          |   Keywords:
---------------------+---------------------------

Comment (by komzpa):

 NODATA value gets set to 0 for 16BSI and 32BSI rasters if it was negative,
 on raspi:


 {{{
 postgis_reg=# SELECT ST_BandNoDataValue(ST_AddBand(ST_MakeEmptyRaster(2,
 2, 0, 0, 1, -1, 0, 0, 0), 1, '16BSI', 0, -1000),1) AS rast;
  rast
 ------
     0
 (1 row)

 postgis_reg=# SELECT ST_BandNoDataValue(ST_AddBand(ST_MakeEmptyRaster(2,
 2, 0, 0, 1, -1, 0, 0, 0), 1, '16BSI', 0, 1000),1) AS rast;
  rast
 ------
  1000
 (1 row)

 postgis_reg=# SELECT ST_BandNoDataValue(ST_AddBand(ST_MakeEmptyRaster(2,
 2, 0, 0, 1, -1, 0, 0, 0), 1, '8BSI', 0, -10),1) AS rast;
  rast
 ------
   -10
 (1 row)

 postgis_reg=# SELECT ST_BandNoDataValue(ST_AddBand(ST_MakeEmptyRaster(2,
 2, 0, 0, 1, -1, 0, 0, 0), 1, '32BSI', 0, -10),1) AS rast;
  rast
 ------
     0
 (1 row)
 }}}

-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/4102#comment:3>
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