diff options
Diffstat (limited to 'src/3rdparty/libjpeg/src/jdarith.c')
| -rw-r--r-- | src/3rdparty/libjpeg/src/jdarith.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/src/3rdparty/libjpeg/src/jdarith.c b/src/3rdparty/libjpeg/src/jdarith.c index 6002481e24..7f0d3a785c 100644 --- a/src/3rdparty/libjpeg/src/jdarith.c +++ b/src/3rdparty/libjpeg/src/jdarith.c @@ -4,7 +4,7 @@ * This file was part of the Independent JPEG Group's software: * Developed 1997-2015 by Guido Vollbeding. * libjpeg-turbo Modifications: - * Copyright (C) 2015-2018, D. R. Commander. + * Copyright (C) 2015-2020, D. R. Commander. * For conditions of distribution and use, see the accompanying README.ijg * file. * @@ -80,7 +80,7 @@ get_byte(j_decompress_ptr cinfo) if (!(*src->fill_input_buffer) (cinfo)) ERREXIT(cinfo, JERR_CANT_SUSPEND); src->bytes_in_buffer--; - return GETJOCTET(*src->next_input_byte++); + return *src->next_input_byte++; } @@ -665,8 +665,16 @@ bad: for (ci = 0; ci < cinfo->comps_in_scan; ci++) { int coefi, cindex = cinfo->cur_comp_info[ci]->component_index; int *coef_bit_ptr = &cinfo->coef_bits[cindex][0]; + int *prev_coef_bit_ptr = + &cinfo->coef_bits[cindex + cinfo->num_components][0]; if (cinfo->Ss && coef_bit_ptr[0] < 0) /* AC without prior DC scan */ WARNMS2(cinfo, JWRN_BOGUS_PROGRESSION, cindex, 0); + for (coefi = MIN(cinfo->Ss, 1); coefi <= MAX(cinfo->Se, 9); coefi++) { + if (cinfo->input_scan_number > 1) + prev_coef_bit_ptr[coefi] = coef_bit_ptr[coefi]; + else + prev_coef_bit_ptr[coefi] = 0; + } for (coefi = cinfo->Ss; coefi <= cinfo->Se; coefi++) { int expected = (coef_bit_ptr[coefi] < 0) ? 0 : coef_bit_ptr[coefi]; if (cinfo->Ah != expected) @@ -727,6 +735,7 @@ bad: entropy->c = 0; entropy->a = 0; entropy->ct = -16; /* force reading 2 initial bytes to fill C */ + entropy->pub.insufficient_data = FALSE; /* Initialize restart counter */ entropy->restarts_to_go = cinfo->restart_interval; @@ -763,7 +772,7 @@ jinit_arith_decoder(j_decompress_ptr cinfo) int *coef_bit_ptr, ci; cinfo->coef_bits = (int (*)[DCTSIZE2]) (*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE, - cinfo->num_components * DCTSIZE2 * + cinfo->num_components * 2 * DCTSIZE2 * sizeof(int)); coef_bit_ptr = &cinfo->coef_bits[0][0]; for (ci = 0; ci < cinfo->num_components; ci++) |