diff options
Diffstat (limited to 'contrib/xz/src/liblzma/lz')
| -rw-r--r-- | contrib/xz/src/liblzma/lz/lz_decoder.c | 60 | ||||
| -rw-r--r-- | contrib/xz/src/liblzma/lz/lz_decoder.h | 13 | ||||
| -rw-r--r-- | contrib/xz/src/liblzma/lz/lz_encoder.c | 61 | ||||
| -rw-r--r-- | contrib/xz/src/liblzma/lz/lz_encoder.h | 9 |
4 files changed, 79 insertions, 64 deletions
diff --git a/contrib/xz/src/liblzma/lz/lz_decoder.c b/contrib/xz/src/liblzma/lz/lz_decoder.c index 2328a8e..c708644 100644 --- a/contrib/xz/src/liblzma/lz/lz_decoder.c +++ b/contrib/xz/src/liblzma/lz/lz_decoder.c @@ -20,7 +20,7 @@ #include "lz_decoder.h" -struct lzma_coder_s { +typedef struct { /// Dictionary (history buffer) lzma_dict dict; @@ -48,7 +48,7 @@ struct lzma_coder_s { size_t size; uint8_t buffer[LZMA_BUFFER_SIZE]; } temp; -}; +} lzma_coder; static void @@ -125,13 +125,15 @@ decode_buffer(lzma_coder *coder, static lzma_ret -lz_decode(lzma_coder *coder, +lz_decode(void *coder_ptr, const lzma_allocator *allocator lzma_attribute((__unused__)), const uint8_t *restrict in, size_t *restrict in_pos, size_t in_size, uint8_t *restrict out, size_t *restrict out_pos, size_t out_size, lzma_action action) { + lzma_coder *coder = coder_ptr; + if (coder->next.code == NULL) return decode_buffer(coder, in, in_pos, in_size, out, out_pos, out_size); @@ -184,8 +186,10 @@ lz_decode(lzma_coder *coder, static void -lz_decoder_end(lzma_coder *coder, const lzma_allocator *allocator) +lz_decoder_end(void *coder_ptr, const lzma_allocator *allocator) { + lzma_coder *coder = coder_ptr; + lzma_next_end(&coder->next, allocator); lzma_free(coder->dict.buf, allocator); @@ -207,24 +211,26 @@ lzma_lz_decoder_init(lzma_next_coder *next, const lzma_allocator *allocator, lzma_lz_options *lz_options)) { // Allocate the base structure if it isn't already allocated. - if (next->coder == NULL) { - next->coder = lzma_alloc(sizeof(lzma_coder), allocator); - if (next->coder == NULL) + lzma_coder *coder = next->coder; + if (coder == NULL) { + coder = lzma_alloc(sizeof(lzma_coder), allocator); + if (coder == NULL) return LZMA_MEM_ERROR; + next->coder = coder; next->code = &lz_decode; next->end = &lz_decoder_end; - next->coder->dict.buf = NULL; - next->coder->dict.size = 0; - next->coder->lz = LZMA_LZ_DECODER_INIT; - next->coder->next = LZMA_NEXT_CODER_INIT; + coder->dict.buf = NULL; + coder->dict.size = 0; + coder->lz = LZMA_LZ_DECODER_INIT; + coder->next = LZMA_NEXT_CODER_INIT; } // Allocate and initialize the LZ-based decoder. It will also give // us the dictionary size. lzma_lz_options lz_options; - return_if_error(lz_init(&next->coder->lz, allocator, + return_if_error(lz_init(&coder->lz, allocator, filters[0].options, &lz_options)); // If the dictionary size is very small, increase it to 4096 bytes. @@ -248,14 +254,14 @@ lzma_lz_decoder_init(lzma_next_coder *next, const lzma_allocator *allocator, lz_options.dict_size = (lz_options.dict_size + 15) & ~((size_t)(15)); // Allocate and initialize the dictionary. - if (next->coder->dict.size != lz_options.dict_size) { - lzma_free(next->coder->dict.buf, allocator); - next->coder->dict.buf + if (coder->dict.size != lz_options.dict_size) { + lzma_free(coder->dict.buf, allocator); + coder->dict.buf = lzma_alloc(lz_options.dict_size, allocator); - if (next->coder->dict.buf == NULL) + if (coder->dict.buf == NULL) return LZMA_MEM_ERROR; - next->coder->dict.size = lz_options.dict_size; + coder->dict.size = lz_options.dict_size; } lz_decoder_reset(next->coder); @@ -268,21 +274,20 @@ lzma_lz_decoder_init(lzma_next_coder *next, const lzma_allocator *allocator, const size_t copy_size = my_min(lz_options.preset_dict_size, lz_options.dict_size); const size_t offset = lz_options.preset_dict_size - copy_size; - memcpy(next->coder->dict.buf, lz_options.preset_dict + offset, + memcpy(coder->dict.buf, lz_options.preset_dict + offset, copy_size); - next->coder->dict.pos = copy_size; - next->coder->dict.full = copy_size; + coder->dict.pos = copy_size; + coder->dict.full = copy_size; } // Miscellaneous initializations - next->coder->next_finished = false; - next->coder->this_finished = false; - next->coder->temp.pos = 0; - next->coder->temp.size = 0; + coder->next_finished = false; + coder->this_finished = false; + coder->temp.pos = 0; + coder->temp.size = 0; // Initialize the next filter in the chain, if any. - return lzma_next_filter_init(&next->coder->next, allocator, - filters + 1); + return lzma_next_filter_init(&coder->next, allocator, filters + 1); } @@ -294,7 +299,8 @@ lzma_lz_decoder_memusage(size_t dictionary_size) extern void -lzma_lz_decoder_uncompressed(lzma_coder *coder, lzma_vli uncompressed_size) +lzma_lz_decoder_uncompressed(void *coder_ptr, lzma_vli uncompressed_size) { + lzma_coder *coder = coder_ptr; coder->lz.set_uncompressed(coder->lz.coder, uncompressed_size); } diff --git a/contrib/xz/src/liblzma/lz/lz_decoder.h b/contrib/xz/src/liblzma/lz/lz_decoder.h index 277900a..754ccf3 100644 --- a/contrib/xz/src/liblzma/lz/lz_decoder.h +++ b/contrib/xz/src/liblzma/lz/lz_decoder.h @@ -53,21 +53,20 @@ typedef struct { typedef struct { /// Data specific to the LZ-based decoder - lzma_coder *coder; + void *coder; /// Function to decode from in[] to *dict - lzma_ret (*code)(lzma_coder *restrict coder, + lzma_ret (*code)(void *coder, lzma_dict *restrict dict, const uint8_t *restrict in, size_t *restrict in_pos, size_t in_size); - void (*reset)(lzma_coder *coder, const void *options); + void (*reset)(void *coder, const void *options); /// Set the uncompressed size - void (*set_uncompressed)(lzma_coder *coder, - lzma_vli uncompressed_size); + void (*set_uncompressed)(void *coder, lzma_vli uncompressed_size); /// Free allocated resources - void (*end)(lzma_coder *coder, const lzma_allocator *allocator); + void (*end)(void *coder, const lzma_allocator *allocator); } lzma_lz_decoder; @@ -92,7 +91,7 @@ extern lzma_ret lzma_lz_decoder_init(lzma_next_coder *next, extern uint64_t lzma_lz_decoder_memusage(size_t dictionary_size); extern void lzma_lz_decoder_uncompressed( - lzma_coder *coder, lzma_vli uncompressed_size); + void *coder, lzma_vli uncompressed_size); ////////////////////// diff --git a/contrib/xz/src/liblzma/lz/lz_encoder.c b/contrib/xz/src/liblzma/lz/lz_encoder.c index 48bc487..9a74b7c 100644 --- a/contrib/xz/src/liblzma/lz/lz_encoder.c +++ b/contrib/xz/src/liblzma/lz/lz_encoder.c @@ -23,7 +23,7 @@ #include "memcmplen.h" -struct lzma_coder_s { +typedef struct { /// LZ-based encoder e.g. LZMA lzma_lz_encoder lz; @@ -32,7 +32,7 @@ struct lzma_coder_s { /// Next coder in the chain lzma_next_coder next; -}; +} lzma_coder; /// \brief Moves the data in the input window to free space for new data @@ -157,12 +157,14 @@ fill_window(lzma_coder *coder, const lzma_allocator *allocator, static lzma_ret -lz_encode(lzma_coder *coder, const lzma_allocator *allocator, +lz_encode(void *coder_ptr, const lzma_allocator *allocator, const uint8_t *restrict in, size_t *restrict in_pos, size_t in_size, uint8_t *restrict out, size_t *restrict out_pos, size_t out_size, lzma_action action) { + lzma_coder *coder = coder_ptr; + while (*out_pos < out_size && (*in_pos < in_size || action != LZMA_RUN)) { // Read more data to coder->mf.buffer if needed. @@ -481,8 +483,10 @@ lzma_lz_encoder_memusage(const lzma_lz_options *lz_options) static void -lz_encoder_end(lzma_coder *coder, const lzma_allocator *allocator) +lz_encoder_end(void *coder_ptr, const lzma_allocator *allocator) { + lzma_coder *coder = coder_ptr; + lzma_next_end(&coder->next, allocator); lzma_free(coder->mf.son, allocator); @@ -500,10 +504,12 @@ lz_encoder_end(lzma_coder *coder, const lzma_allocator *allocator) static lzma_ret -lz_encoder_update(lzma_coder *coder, const lzma_allocator *allocator, +lz_encoder_update(void *coder_ptr, const lzma_allocator *allocator, const lzma_filter *filters_null lzma_attribute((__unused__)), const lzma_filter *reversed_filters) { + lzma_coder *coder = coder_ptr; + if (coder->lz.options_update == NULL) return LZMA_PROG_ERROR; @@ -528,46 +534,51 @@ lzma_lz_encoder_init(lzma_next_coder *next, const lzma_allocator *allocator, #endif // Allocate and initialize the base data structure. - if (next->coder == NULL) { - next->coder = lzma_alloc(sizeof(lzma_coder), allocator); - if (next->coder == NULL) + lzma_coder *coder = next->coder; + if (coder == NULL) { + coder = lzma_alloc(sizeof(lzma_coder), allocator); + if (coder == NULL) return LZMA_MEM_ERROR; + next->coder = coder; next->code = &lz_encode; next->end = &lz_encoder_end; next->update = &lz_encoder_update; - next->coder->lz.coder = NULL; - next->coder->lz.code = NULL; - next->coder->lz.end = NULL; - - next->coder->mf.buffer = NULL; - next->coder->mf.hash = NULL; - next->coder->mf.son = NULL; - next->coder->mf.hash_count = 0; - next->coder->mf.sons_count = 0; - - next->coder->next = LZMA_NEXT_CODER_INIT; + coder->lz.coder = NULL; + coder->lz.code = NULL; + coder->lz.end = NULL; + + // mf.size is initialized to silence Valgrind + // when used on optimized binaries (GCC may reorder + // code in a way that Valgrind gets unhappy). + coder->mf.buffer = NULL; + coder->mf.size = 0; + coder->mf.hash = NULL; + coder->mf.son = NULL; + coder->mf.hash_count = 0; + coder->mf.sons_count = 0; + + coder->next = LZMA_NEXT_CODER_INIT; } // Initialize the LZ-based encoder. lzma_lz_options lz_options; - return_if_error(lz_init(&next->coder->lz, allocator, + return_if_error(lz_init(&coder->lz, allocator, filters[0].options, &lz_options)); - // Setup the size information into next->coder->mf and deallocate + // Setup the size information into coder->mf and deallocate // old buffers if they have wrong size. - if (lz_encoder_prepare(&next->coder->mf, allocator, &lz_options)) + if (lz_encoder_prepare(&coder->mf, allocator, &lz_options)) return LZMA_OPTIONS_ERROR; // Allocate new buffers if needed, and do the rest of // the initialization. - if (lz_encoder_init(&next->coder->mf, allocator, &lz_options)) + if (lz_encoder_init(&coder->mf, allocator, &lz_options)) return LZMA_MEM_ERROR; // Initialize the next filter in the chain, if any. - return lzma_next_filter_init(&next->coder->next, allocator, - filters + 1); + return lzma_next_filter_init(&coder->next, allocator, filters + 1); } diff --git a/contrib/xz/src/liblzma/lz/lz_encoder.h b/contrib/xz/src/liblzma/lz/lz_encoder.h index dad9c6b..426dcd8 100644 --- a/contrib/xz/src/liblzma/lz/lz_encoder.h +++ b/contrib/xz/src/liblzma/lz/lz_encoder.h @@ -191,19 +191,18 @@ typedef struct { typedef struct { /// Data specific to the LZ-based encoder - lzma_coder *coder; + void *coder; /// Function to encode from *dict to out[] - lzma_ret (*code)(lzma_coder *restrict coder, + lzma_ret (*code)(void *coder, lzma_mf *restrict mf, uint8_t *restrict out, size_t *restrict out_pos, size_t out_size); /// Free allocated resources - void (*end)(lzma_coder *coder, const lzma_allocator *allocator); + void (*end)(void *coder, const lzma_allocator *allocator); /// Update the options in the middle of the encoding. - lzma_ret (*options_update)(lzma_coder *coder, - const lzma_filter *filter); + lzma_ret (*options_update)(void *coder, const lzma_filter *filter); } lzma_lz_encoder; |
