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lzw: Rename minimum_code_size to match what it's called in spec.

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This commit is contained in:
Michael Drake 2021-03-31 21:17:58 +01:00 committed by Michael Drake
parent ac2d57c288
commit 92d53337d8
2 changed files with 7 additions and 7 deletions
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10
libvips/foreign/libnsgif/lzw.c
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@ -269,13 +269,13 @@ lzw_result lzw_decode_init(
const uint8_t *compressed_data,
uint32_t compressed_data_len,
uint32_t compressed_data_pos,
uint8_t code_size,
uint8_t minimum_code_size,
const uint8_t ** const stack_base_out,
const uint8_t ** const stack_pos_out)
{
struct lzw_dictionary_entry *table = ctx->table;
if (code_size >= LZW_CODE_MAX) {
if (minimum_code_size >= LZW_CODE_MAX) {
return LZW_BAD_ICODE;
}
@ -288,10 +288,10 @@ lzw_result lzw_decode_init(
ctx->input.sb_bit_count = 0;
/* Initialise the dictionary building context */
ctx->initial_code_size = code_size + 1;
ctx->initial_code_size = minimum_code_size + 1;
ctx->clear_code = (1 << code_size) + 0;
ctx->eoi_code = (1 << code_size) + 1;
ctx->clear_code = (1 << minimum_code_size) + 0;
ctx->eoi_code = (1 << minimum_code_size) + 1;
/* Initialise the standard dictionary entries */
for (uint32_t i = 0; i < ctx->clear_code; ++i) {

4
libvips/foreign/libnsgif/lzw.h
View File

@ -65,7 +65,7 @@ void lzw_context_destroy(
* \param[in] compressed_data_len Byte length of compressed data.
* \param[in] compressed_data_pos Start position in data. Must be position
* of a size byte at sub-block start.
* \param[in] code_size The initial LZW code size to use.
* \param[in] minimum_code_size The LZW Minimum Code Size.
* \param[out] stack_base_out Returns base of decompressed data stack.
* \param[out] stack_pos_out Returns current stack position.
* There are `stack_pos_out - stack_base_out`
@ -77,7 +77,7 @@ lzw_result lzw_decode_init(
const uint8_t *compressed_data,
uint32_t compressed_data_len,
uint32_t compressed_data_pos,
uint8_t code_size,
uint8_t minimum_code_size,
const uint8_t ** const stack_base_out,
const uint8_t ** const stack_pos_out);