]> wimlib.net Git - wimlib/blobdiff - src/lzx-decompress.c
Style
[wimlib] / src / lzx-decompress.c
index 13b00761eff664eaf4b68b6350c35620c9d12c4e..da462186c06870b2038098bc0b3aab97dc6dd229 100644 (file)
@@ -7,7 +7,7 @@
  */
 
 /*
- * Copyright (C) 2012 Eric Biggers
+ * Copyright (C) 2012, 2013 Eric Biggers
  *
  * This file is part of wimlib, a library for working with WIM files.
  *
@@ -133,9 +133,10 @@ struct lzx_tables {
 /*
  * Reads a Huffman-encoded symbol using the pre-tree.
  */
-static inline int read_huffsym_using_pretree(struct input_bitstream *istream,
-                                            const u16 pretree_decode_table[],
-                                            const u8 pretree_lens[], unsigned *n)
+static inline int
+read_huffsym_using_pretree(struct input_bitstream *istream,
+                          const u16 pretree_decode_table[],
+                          const u8 pretree_lens[], unsigned *n)
 {
        return read_huffsym(istream, pretree_decode_table, pretree_lens,
                            LZX_PRETREE_NUM_SYMBOLS, LZX_PRETREE_TABLEBITS, n,
@@ -143,9 +144,10 @@ static inline int read_huffsym_using_pretree(struct input_bitstream *istream,
 }
 
 /* Reads a Huffman-encoded symbol using the main tree. */
-static inline int read_huffsym_using_maintree(struct input_bitstream *istream,
-                                             const struct lzx_tables *tables,
-                                             unsigned *n)
+static inline int
+read_huffsym_using_maintree(struct input_bitstream *istream,
+                           const struct lzx_tables *tables,
+                           unsigned *n)
 {
        return read_huffsym(istream, tables->maintree_decode_table,
                            tables->maintree_lens, LZX_MAINTREE_NUM_SYMBOLS,
@@ -153,9 +155,10 @@ static inline int read_huffsym_using_maintree(struct input_bitstream *istream,
 }
 
 /* Reads a Huffman-encoded symbol using the length tree. */
-static inline int read_huffsym_using_lentree(struct input_bitstream *istream,
-                                            const struct lzx_tables *tables,
-                                            unsigned *n)
+static inline int
+read_huffsym_using_lentree(struct input_bitstream *istream,
+                          const struct lzx_tables *tables,
+                          unsigned *n)
 {
        return read_huffsym(istream, tables->lentree_decode_table,
                            tables->lentree_lens, LZX_LENTREE_NUM_SYMBOLS,
@@ -163,9 +166,10 @@ static inline int read_huffsym_using_lentree(struct input_bitstream *istream,
 }
 
 /* Reads a Huffman-encoded symbol using the aligned offset tree. */
-static inline int read_huffsym_using_alignedtree(struct input_bitstream *istream,
-                                                const struct lzx_tables *tables,
-                                                unsigned *n)
+static inline int
+read_huffsym_using_alignedtree(struct input_bitstream *istream,
+                              const struct lzx_tables *tables,
+                              unsigned *n)
 {
        return read_huffsym(istream, tables->alignedtree_decode_table,
                            tables->alignedtree_lens,
@@ -185,8 +189,9 @@ static inline int read_huffsym_using_alignedtree(struct input_bitstream *istream
  * @num_lens:  Number of length values to decode and return.
  *
  */
-static int lzx_read_code_lens(struct input_bitstream *istream, u8 lens[],
-                             unsigned num_lens)
+static int
+lzx_read_code_lens(struct input_bitstream *istream, u8 lens[],
+                  unsigned num_lens)
 {
        /* Declare the decoding table and length table for the pretree. */
        u16 pretree_decode_table[(1 << LZX_PRETREE_TABLEBITS) +
@@ -306,11 +311,12 @@ static int lzx_read_code_lens(struct input_bitstream *istream, u8 lens[],
  *                     R0, R1, and R2 will be written (only for uncompressed
  *                     blocks, which contain this information in the header)
  */
-static int lzx_read_block_header(struct input_bitstream *istream,
-                                unsigned *block_size_ret,
-                                unsigned *block_type_ret,
-                                struct lzx_tables *tables,
-                                struct lru_queue *queue)
+static int
+lzx_read_block_header(struct input_bitstream *istream,
+                     unsigned *block_size_ret,
+                     unsigned *block_type_ret,
+                     struct lzx_tables *tables,
+                     struct lru_queue *queue)
 {
        int ret;
        unsigned block_type;
@@ -511,12 +517,13 @@ static int lzx_read_block_header(struct input_bitstream *istream,
  *     - Match refers to data before the window.
  *     - The input bitstream ended unexpectedly.
  */
-static int lzx_decode_match(unsigned main_element, int block_type,
-                           unsigned bytes_remaining, u8 *window,
-                           unsigned window_pos,
-                           const struct lzx_tables *tables,
-                           struct lru_queue *queue,
-                           struct input_bitstream *istream)
+static int
+lzx_decode_match(unsigned main_element, int block_type,
+                unsigned bytes_remaining, u8 *window,
+                unsigned window_pos,
+                const struct lzx_tables *tables,
+                struct lru_queue *queue,
+                struct input_bitstream *istream)
 {
        unsigned length_header;
        unsigned position_slot;
@@ -668,8 +675,9 @@ static int lzx_decode_match(unsigned main_element, int block_type,
        return match_len;
 }
 
-static void undo_call_insn_translation(u32 *call_insn_target, int input_pos,
-                                      int32_t file_size)
+static void
+undo_call_insn_translation(u32 *call_insn_target, int input_pos,
+                          int32_t file_size)
 {
        int32_t abs_offset;
        int32_t rel_offset;
@@ -709,8 +717,8 @@ static void undo_call_insn_translation(u32 *call_insn_target, int input_pos,
  * Call instruction processing is supposed to take the file size as a parameter,
  * as it is used in calculating the translated jump targets.  But in WIM files,
  * this file size is always the same (LZX_WIM_MAGIC_FILESIZE == 12000000).*/
-static void undo_call_insn_preprocessing(u8 uncompressed_data[],
-                                        int uncompressed_data_len)
+static void
+undo_call_insn_preprocessing(u8 uncompressed_data[], int uncompressed_data_len)
 {
        for (int i = 0; i < uncompressed_data_len - 10; i++) {
                if (uncompressed_data[i] == 0xe8) {
@@ -737,12 +745,13 @@ static void undo_call_insn_preprocessing(u8 uncompressed_data[],
  * @queue:     The least-recently-used queue for match offsets.
  * @istream:   The input bitstream for the compressed literals.
  */
-static int lzx_decompress_block(int block_type, unsigned block_size,
-                               u8 *window,
-                               unsigned window_pos,
-                               const struct lzx_tables *tables,
-                               struct lru_queue *queue,
-                               struct input_bitstream *istream)
+static int
+lzx_decompress_block(int block_type, unsigned block_size,
+                    u8 *window,
+                    unsigned window_pos,
+                    const struct lzx_tables *tables,
+                    struct lru_queue *queue,
+                    struct input_bitstream *istream)
 {
        unsigned main_element;
        unsigned end;
@@ -795,8 +804,9 @@ static int lzx_decompress_block(int block_type, unsigned block_size,
  *
  * Return 0 on success; non-zero on failure.
  */
-int lzx_decompress(const void *compressed_data, unsigned compressed_len,
-                  void *uncompressed_data, unsigned uncompressed_len)
+int
+lzx_decompress(const void *compressed_data, unsigned compressed_len,
+              void *uncompressed_data, unsigned uncompressed_len)
 {
        struct lzx_tables tables;
        struct input_bitstream istream;