From 2af69f4135253573ccc3a14f0cb9555bdba6ac3b Mon Sep 17 00:00:00 2001
From: Alexander Larsson <alexl@redhat.com>
Date: Tue, 24 Nov 2009 13:02:05 +0100
Subject: [PATCH] Fix GZlibCompressorFormat names

What used to be called RAW is really the zlib header format.
There is a real "raw" format, so rename the default and add a RAW type.
---
 gio/gioenums.h          |  8 +++++---
 gio/gzlibcompressor.c   | 12 ++++++++++--
 gio/gzlibdecompressor.c |  9 +++++++--
 gio/tests/filter-cat.c  |  4 ++--
 4 files changed, 24 insertions(+), 9 deletions(-)

diff --git a/gio/gioenums.h b/gio/gioenums.h
index 2c9433ea..09d2393a 100644
--- a/gio/gioenums.h
+++ b/gio/gioenums.h
@@ -675,8 +675,9 @@ typedef enum {
 
 /**
  * GZlibCompressorFormat:
- * @G_ZLIB_COMRESSOR_FORMAT_RAW: Raw zlib compression data
+ * @G_ZLIB_COMRESSOR_FORMAT_ZLIB: deflate compression with zlib header
  * @G_ZLIB_COMRESSOR_FORMAT_GZIP: gzip file format
+ * @G_ZLIB_COMRESSOR_FORMAT_RAW: deflate compression with no header
  *
  * Used to select the type of data format to use for #GZlibDecompressor
  * and #GZlibCompressor.
@@ -684,8 +685,9 @@ typedef enum {
  * Since: 2.24
  */
 typedef enum {
-  G_ZLIB_COMPRESSOR_FORMAT_RAW,
-  G_ZLIB_COMPRESSOR_FORMAT_GZIP
+  G_ZLIB_COMPRESSOR_FORMAT_ZLIB,
+  G_ZLIB_COMPRESSOR_FORMAT_GZIP,
+  G_ZLIB_COMPRESSOR_FORMAT_RAW
 } GZlibCompressorFormat;
 
 G_END_DECLS
diff --git a/gio/gzlibcompressor.c b/gio/gzlibcompressor.c
index 20fd8ff0..4c722e2a 100644
--- a/gio/gzlibcompressor.c
+++ b/gio/gzlibcompressor.c
@@ -157,7 +157,15 @@ g_zlib_compressor_constructed (GObject *object)
 			  MAX_WBITS + 16, 8,
 			  Z_DEFAULT_STRATEGY);
     }
-  else
+  else if (compressor->format == G_ZLIB_COMPRESSOR_FORMAT_RAW)
+    {
+      /* negative wbits for raw */
+      res = deflateInit2 (&compressor->zstream,
+			  compressor->level, Z_DEFLATED,
+			  -MAX_WBITS, 8,
+			  Z_DEFAULT_STRATEGY);
+    }
+  else /* ZLIB */
     res = deflateInit (&compressor->zstream, compressor->level);
 
   if (res == Z_MEM_ERROR )
@@ -183,7 +191,7 @@ g_zlib_compressor_class_init (GZlibCompressorClass *klass)
 						      P_("compression format"),
 						      P_("The format of the compressed data"),
 						      G_TYPE_ZLIB_COMPRESSOR_FORMAT,
-						      G_ZLIB_COMPRESSOR_FORMAT_RAW,
+						      G_ZLIB_COMPRESSOR_FORMAT_ZLIB,
 						      G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
 						      G_PARAM_STATIC_STRINGS));
   g_object_class_install_property (gobject_class,
diff --git a/gio/gzlibdecompressor.c b/gio/gzlibdecompressor.c
index e19c28e9..1587dd53 100644
--- a/gio/gzlibdecompressor.c
+++ b/gio/gzlibdecompressor.c
@@ -144,7 +144,12 @@ g_zlib_decompressor_constructed (GObject *object)
       /* + 16 for gzip */
       res = inflateInit2 (&decompressor->zstream, MAX_WBITS + 16);
     }
-  else
+  else if (decompressor->format == G_ZLIB_COMPRESSOR_FORMAT_RAW)
+    {
+      /* Negative for gzip */
+      res = inflateInit2 (&decompressor->zstream, -MAX_WBITS);
+    }
+  else /* ZLIB */
     res = inflateInit (&decompressor->zstream);
 
   if (res == Z_MEM_ERROR )
@@ -170,7 +175,7 @@ g_zlib_decompressor_class_init (GZlibDecompressorClass *klass)
 						      P_("compression format"),
 						      P_("The format of the compressed data"),
 						      G_TYPE_ZLIB_COMPRESSOR_FORMAT,
-						      G_ZLIB_COMPRESSOR_FORMAT_RAW,
+						      G_ZLIB_COMPRESSOR_FORMAT_ZLIB,
 						      G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
 						      G_PARAM_STATIC_STRINGS));
 }
diff --git a/gio/tests/filter-cat.c b/gio/tests/filter-cat.c
index 0c1cc136..770ab1a9 100644
--- a/gio/tests/filter-cat.c
+++ b/gio/tests/filter-cat.c
@@ -76,7 +76,7 @@ cat (GFile * file)
   if (decompress)
     {
       GInputStream *old;
-      conv = (GConverter *)g_zlib_decompressor_new (gzip?G_ZLIB_COMPRESSOR_FORMAT_GZIP:G_ZLIB_COMPRESSOR_FORMAT_RAW);
+      conv = (GConverter *)g_zlib_decompressor_new (gzip?G_ZLIB_COMPRESSOR_FORMAT_GZIP:G_ZLIB_COMPRESSOR_FORMAT_ZLIB);
       old = in;
       in = (GInputStream *) g_converter_input_stream_new (in, conv);
       g_object_unref (conv);
@@ -108,7 +108,7 @@ cat (GFile * file)
   if (compress)
     {
       GInputStream *old;
-      conv = (GConverter *)g_zlib_compressor_new (gzip?G_ZLIB_COMPRESSOR_FORMAT_GZIP:G_ZLIB_COMPRESSOR_FORMAT_RAW, -1);
+      conv = (GConverter *)g_zlib_compressor_new (gzip?G_ZLIB_COMPRESSOR_FORMAT_GZIP:G_ZLIB_COMPRESSOR_FORMAT_ZLIB, -1);
       old = in;
       in = (GInputStream *) g_converter_input_stream_new (in, conv);
       g_object_unref (conv);
-- 
2.34.1