GD removed (#133) - updated outputformat

Author: havatv

en/mapfile/outputformat.txt

@@ -26,13 +26,6 @@ with GDAL support, and the PDF and SVG depend on building with cairo support.
       EXTENSION "png"
       FORMATOPTION "GAMMA=0.75"
     END
-    OUTPUTFORMAT
-      NAME "gif"
-      DRIVER GD/GIF
-      MIMETYPE "image/gif"
-      IMAGEMODE PC256
-      EXTENSION "gif"
-    END
     OUTPUTFORMAT
       NAME "png8"
       DRIVER AGG/PNG8
@@ -108,11 +101,10 @@ DRIVER [name]
     The name of the driver to use to generate this output format. Some driver 
     names include the definition of the format if the driver supports multiple 
     formats. For AGG, the possible driver names are "AGG/PNG" and "AGG/JPEG".
-    For GD the possible driver names are "GD/Gif" and "GD/PNG".
     For output through OGR the OGR driver name is appended, such as 
     "OGR/Mapinfo File".  For output through GDAL the GDAL shortname for the 
-    format is appended, such as "GDAL/GTiff". Note that PNG, JPEG and GIF 
-    output can be generated with either GDAL or GD (GD is generally more 
+    format is appended, such as "GDAL/GTiff". Note that PNG and JPEG 
+    output can be generated with either GDAL or AGG (AGG is generally more 
     efficient).  TEMPLATE should be used for template based output. (mandatory).
     Other drivers: KML, KMZ and UTFGRID.
 
@@ -257,9 +249,17 @@ FORMATOPTION [option]
     - GD/PNG: The "INTERLACE=[ON/OFF]" option may be used to turn 
       interlacing on or off.
 
+      .. Warning::
+
+         GD support was removed in Mapserver 7.0.
+
     - GD/GIF: The "INTERLACE=[ON/OFF]" option may be used to turn 
       interlacing on or off.
 
+      .. Warning::
+
+         GD support was removed in Mapserver 7.0.
+
     .. index::
        triple: OUTPUTFORMAT; FORMATOPTION; TILED
 
@@ -329,7 +329,7 @@ FORMATOPTION [option]
 IMAGEMODE [PC256|RGB|RGBA|INT16|FLOAT32|FEATURE]
     Selects the imaging mode in which the output is generated. Does matter 
     for non-raster formats like Flash. Not all formats support all 
-    combinations. For instance GD supports only PC256. (optional)
+    combinations. (optional)
 
     .. index::
        triple: OUTPUTFORMAT; IMAGEMODE; PC256
@@ -338,6 +338,10 @@ IMAGEMODE [PC256|RGB|RGBA|INT16|FLOAT32|FEATURE]
       the palette (legacy MapServer mode). Only supported for GD/GIF
       and GD/PNG.
 
+      .. Warning::
+
+         GD support was removed in Mapserver 7.0.
+
     .. index::
        triple: OUTPUTFORMAT; IMAGEMODE; RGB