From: Sandro Santilli <strk@keybit.net>
Date: Wed, 31 May 2006 08:58:19 +0000 (+0000)
Subject: Added support and info for CHIP.datatype 7,8,107 and 108. They were not documented... 
X-Git-Tag: pgis_1_1_3~30
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=aaf294061d287bb9706931739ad1a654932e2d64;p=postgis

Added support and info for CHIP.datatype 7,8,107 and 108. They were not documented but used by CHIP canonical input function.


git-svn-id: http://svn.osgeo.org/postgis/trunk@2374 b70326c6-7e19-0410-871a-916f4a2858ee
---

diff --git a/lwgeom/liblwgeom.h b/lwgeom/liblwgeom.h
index 054d195da..fa7801a7a 100644
--- a/lwgeom/liblwgeom.h
+++ b/lwgeom/liblwgeom.h
@@ -81,9 +81,13 @@ typedef struct chiptag
 	int datatype;	/* 1 = float32,
 			 * 5 = 24bit integer,
 			 * 6 = 16bit integer (short)
+			 * 7 = 16bit ???
+			 * 8 = 8bit ???
 			 * 101 = float32 (NDR),
 			 * 105 = 24bit integer (NDR),
-			 * 106=16bit int (NDR)
+			 * 106 = 16bit int (NDR)
+			 * 107 = 16bit ??? (NDR)
+			 * 108 = 8bit ??? (NDR)
 			 */
 	int height;
 	int width;
diff --git a/lwgeom/lwgeom_chip.c b/lwgeom/lwgeom_chip.c
index a3edef0b3..8ca70caf7 100644
--- a/lwgeom/lwgeom_chip.c
+++ b/lwgeom/lwgeom_chip.c
@@ -16,7 +16,7 @@
 
 
 /* Define this to debug CHIP ops */
-/* #define DEBUG_CHIP 1 */
+#define DEBUG_CHIP 1
 
 /* Internal funcs */
 void swap_char(char *a,char *b);
@@ -569,8 +569,13 @@ chip_pixel_value_size(int datatype)
 		case 105:
 			return 3;
 		case 6:
+		case 7:
 		case 106:
+		case 107:
 			return 2;
+		case 8:
+		case 108:
+			return 1;
 		default:
 			lwerror("Unknown CHIP datatype: %d", datatype);
 			return 0;