diff options
Diffstat (limited to 'src/3rdparty/libjpeg/src/jdapimin.c')
| -rw-r--r-- | src/3rdparty/libjpeg/src/jdapimin.c | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/src/3rdparty/libjpeg/src/jdapimin.c b/src/3rdparty/libjpeg/src/jdapimin.c index 21a41d2e9f..30d92841a8 100644 --- a/src/3rdparty/libjpeg/src/jdapimin.c +++ b/src/3rdparty/libjpeg/src/jdapimin.c @@ -3,8 +3,10 @@ * * This file was part of the Independent JPEG Group's software: * Copyright (C) 1994-1998, Thomas G. Lane. + * Lossless JPEG Modifications: + * Copyright (C) 1999, Ken Murchison. * libjpeg-turbo Modifications: - * Copyright (C) 2016, D. R. Commander. + * Copyright (C) 2016, 2022, 2024, D. R. Commander. * For conditions of distribution and use, see the accompanying README.ijg * file. * @@ -52,7 +54,7 @@ jpeg_CreateDecompress(j_decompress_ptr cinfo, int version, size_t structsize) { struct jpeg_error_mgr *err = cinfo->err; void *client_data = cinfo->client_data; /* ignore Purify complaint here */ - MEMZERO(cinfo, sizeof(struct jpeg_decompress_struct)); + memset(cinfo, 0, sizeof(struct jpeg_decompress_struct)); cinfo->err = err; cinfo->client_data = client_data; } @@ -82,6 +84,8 @@ jpeg_CreateDecompress(j_decompress_ptr cinfo, int version, size_t structsize) /* And initialize the overall input controller. */ jinit_input_controller(cinfo); + cinfo->data_precision = BITS_IN_JSAMPLE; + /* OK, I'm ready */ cinfo->global_state = DSTATE_START; @@ -91,7 +95,7 @@ jpeg_CreateDecompress(j_decompress_ptr cinfo, int version, size_t structsize) cinfo->master = (struct jpeg_decomp_master *) (*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_PERMANENT, sizeof(my_decomp_master)); - MEMZERO(cinfo->master, sizeof(my_decomp_master)); + memset(cinfo->master, 0, sizeof(my_decomp_master)); } @@ -156,13 +160,19 @@ default_decompress_parms(j_decompress_ptr cinfo) int cid1 = cinfo->comp_info[1].component_id; int cid2 = cinfo->comp_info[2].component_id; - if (cid0 == 1 && cid1 == 2 && cid2 == 3) - cinfo->jpeg_color_space = JCS_YCbCr; /* assume JFIF w/out marker */ - else if (cid0 == 82 && cid1 == 71 && cid2 == 66) + if (cid0 == 1 && cid1 == 2 && cid2 == 3) { + if (cinfo->master->lossless) + cinfo->jpeg_color_space = JCS_RGB; /* assume RGB w/out marker */ + else + cinfo->jpeg_color_space = JCS_YCbCr; /* assume JFIF w/out marker */ + } else if (cid0 == 82 && cid1 == 71 && cid2 == 66) cinfo->jpeg_color_space = JCS_RGB; /* ASCII 'R', 'G', 'B' */ else { TRACEMS3(cinfo, 1, JTRC_UNKNOWN_IDS, cid0, cid1, cid2); - cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */ + if (cinfo->master->lossless) + cinfo->jpeg_color_space = JCS_RGB; /* assume it's RGB */ + else + cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */ } } /* Always guess RGB is proper output colorspace. */ @@ -308,7 +318,7 @@ jpeg_consume_input(j_decompress_ptr cinfo) /* Initialize application's data source module */ (*cinfo->src->init_source) (cinfo); cinfo->global_state = DSTATE_INHEADER; - /*FALLTHROUGH*/ + FALLTHROUGH /*FALLTHROUGH*/ case DSTATE_INHEADER: retcode = (*cinfo->inputctl->consume_input) (cinfo); if (retcode == JPEG_REACHED_SOS) { /* Found SOS, prepare to decompress */ |