diff options
| author |   Sam James <sam@gentoo.org> | 2022-09-21 14:18:08 +0100 |
|---|---|---|
| committer | Sam James <sam@gentoo.org> | 2022-10-02 04:31:25 +0100 |
| commit | a529111f77ff46f4836fe7312e70953bc16587cf (patch) | |
| tree | 9dc3924cb1a6ef3ef853b7bb45f735365e0b4e6d /jpeg/jcmaster.c | |
| parent | Import Ghostscript 9.56.1 (diff) | |
| download | ghostscript-gpl-patches-ghostscript-10.tar.gz ghostscript-gpl-patches-ghostscript-10.tar.bz2 ghostscript-gpl-patches-ghostscript-10.zip | |
Import Ghostscript 10.0ghostscript-10.0ghostscript-10
Signed-off-by: Sam James <sam@gentoo.org>
Diffstat (limited to 'jpeg/jcmaster.c')
| -rw-r--r-- | jpeg/jcmaster.c | 28 |
1 files changed, 13 insertions, 15 deletions
diff --git a/jpeg/jcmaster.c b/jpeg/jcmaster.c index 89dcf78c..a70af0c0 100644 --- a/jpeg/jcmaster.c +++ b/jpeg/jcmaster.c @@ -2,7 +2,7 @@ * jcmaster.c * * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2003-2019 by Guido Vollbeding. + * Modified 2003-2020 by Guido Vollbeding. * This file is part of the Independent JPEG Group's software. * For conditions of distribution and use, see the accompanying README file. * @@ -391,16 +391,16 @@ per_scan_setup (j_compress_ptr cinfo) { int ci, mcublks, tmp; jpeg_component_info *compptr; - + if (cinfo->comps_in_scan == 1) { - + /* Noninterleaved (single-component) scan */ compptr = cinfo->cur_comp_info[0]; - + /* Overall image size in MCUs */ cinfo->MCUs_per_row = compptr->width_in_blocks; cinfo->MCU_rows_in_scan = compptr->height_in_blocks; - + /* For noninterleaved scan, always one block per MCU */ compptr->MCU_width = 1; compptr->MCU_height = 1; @@ -413,28 +413,26 @@ per_scan_setup (j_compress_ptr cinfo) tmp = (int) (compptr->height_in_blocks % compptr->v_samp_factor); if (tmp == 0) tmp = compptr->v_samp_factor; compptr->last_row_height = tmp; - + /* Prepare array describing MCU composition */ cinfo->blocks_in_MCU = 1; cinfo->MCU_membership[0] = 0; - + } else { - + /* Interleaved (multi-component) scan */ if (cinfo->comps_in_scan <= 0 || cinfo->comps_in_scan > MAX_COMPS_IN_SCAN) ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->comps_in_scan, MAX_COMPS_IN_SCAN); - + /* Overall image size in MCUs */ cinfo->MCUs_per_row = (JDIMENSION) jdiv_round_up((long) cinfo->jpeg_width, (long) (cinfo->max_h_samp_factor * cinfo->block_size)); - cinfo->MCU_rows_in_scan = (JDIMENSION) - jdiv_round_up((long) cinfo->jpeg_height, - (long) (cinfo->max_v_samp_factor * cinfo->block_size)); - + cinfo->MCU_rows_in_scan = cinfo->total_iMCU_rows; + cinfo->blocks_in_MCU = 0; - + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { compptr = cinfo->cur_comp_info[ci]; /* Sampling factors give # of blocks of component in each MCU */ @@ -457,7 +455,7 @@ per_scan_setup (j_compress_ptr cinfo) cinfo->MCU_membership[cinfo->blocks_in_MCU++] = ci; } } - + } /* Convert restart specified in rows to actual MCU count. */ |