X-Git-Url: https://wimlib.net/git/?a=blobdiff_plain;f=include%2Fwimlib%2Fresource.h;h=ae0775536b726e138000cfc4fd77dcbbd8feba48;hb=50407ddd59aa2d0906225a4526eaefbf6da8450f;hp=2c1cd9b4523068ddf504d9157ebfbb306de4627d;hpb=e176e9731e696562bab8de7b9bd34c019deef3e8;p=wimlib

diff --git a/include/wimlib/resource.h b/include/wimlib/resource.h
index 2c1cd9b4..ae077553 100644
--- a/include/wimlib/resource.h
+++ b/include/wimlib/resource.h
@@ -52,6 +52,13 @@ struct wim_resource_spec {
 
 	/* Temporary flag.  */
 	u32 raw_copy_ok : 1;
+
+	/* Compression type of this resource.  */
+	u32 compression_type : 22;
+
+	/* Compression chunk size of this resource.  Irrelevant if the resource
+	 * is uncompressed.  */
+	u32 chunk_size;
 };
 
 /* On-disk version of a WIM resource header.  */
@@ -159,8 +166,8 @@ struct alt_chunk_table_header_disk {
 
 	/* Compression format used for compressed chunks:
 	 * 0 = None
-	 * 1 = LZX
-	 * 2 = XPRESS
+	 * 1 = XPRESS
+	 * 2 = LZX
 	 * 3 = LZMS
 	 *
 	 * This overrides the compression type specified by the WIM header.  */
@@ -170,10 +177,14 @@ struct alt_chunk_table_header_disk {
 	 * the chunks (4 bytes per entry).  */
 } _packed_attribute;
 
-/* wimlib internal flags used when writing resources.  */
-#define WIMLIB_WRITE_RESOURCE_FLAG_RECOMPRESS		0x00000001
-#define WIMLIB_WRITE_RESOURCE_FLAG_PIPABLE		0x00000002
-#define WIMLIB_WRITE_RESOURCE_FLAG_PACK_STREAMS		0x00000004
+static inline unsigned int
+get_chunk_entry_size(u64 res_size, bool is_alt)
+{
+	if (res_size <= UINT32_MAX || is_alt)
+		return 4;
+	else
+		return 8;
+}
 
 /* Functions to read streams  */
 
@@ -192,6 +203,10 @@ extern int
 wim_reshdr_to_data(const struct wim_reshdr *reshdr,
 		   WIMStruct *wim, void **buf_ret);
 
+extern int
+wim_reshdr_to_hash(const struct wim_reshdr *reshdr, WIMStruct *wim,
+		   u8 hash[SHA1_HASH_SIZE]);
+
 extern int
 skip_wim_stream(struct wim_lookup_table_entry *lte);
 
@@ -201,10 +216,9 @@ skip_wim_stream(struct wim_lookup_table_entry *lte);
  * @lte:
  *	Stream that is about to be read.
  *
- * @is_partial_res:
- *	Set to true if the stream is just one of several being read from a
- *	single pack and therefore would be extra expensive to read
- *	independently.
+ * @flags:
+ *	Bitwise OR of BEGIN_STREAM_FLAG_PARTIAL_RESOURCE and/or
+ *	BEGIN_STREAM_FLAG_WHOLE_STREAM.
  *
  * @ctx:
  *	User-provided context.
@@ -215,9 +229,17 @@ skip_wim_stream(struct wim_lookup_table_entry *lte);
  * (without calling @consume_chunk or @end_stream).
  */
 typedef int (*read_stream_list_begin_stream_t)(struct wim_lookup_table_entry *lte,
-					       bool is_partial_res,
+					       u32 flags,
 					       void *ctx);
 
+/* Set to true if the stream is just one of several being read from a single
+ * pack and therefore would be extra expensive to read independently.  */
+#define BEGIN_STREAM_FLAG_PARTIAL_RESOURCE	0x00000001
+
+/* This is purely advisory and indicates that the entire stream data will be
+ * provided in one call to consume_chunk().  */
+#define BEGIN_STREAM_FLAG_WHOLE_STREAM		0x00000002
+
 #define BEGIN_STREAM_STATUS_SKIP_STREAM	-1
 
 /*
@@ -285,6 +307,10 @@ extern int
 extract_stream_to_fd(struct wim_lookup_table_entry *lte,
 		     struct filedes *fd, u64 size);
 
+extern int
+extract_full_stream_to_fd(struct wim_lookup_table_entry *lte,
+			  struct filedes *fd);
+
 extern int
 extract_chunk_to_fd(const void *chunk, size_t size, void *_fd_p);