diff options
author | 2023-12-06 06:05:40 +1100 | |
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committer | 2023-12-06 06:05:40 +1100 | |
commit | 73751bcea9a5365e5f4d427986ba4f75fe0300ef (patch) | |
tree | 40f937b5d5e541a8ac68a80154bf30762e42c048 /3rdparty/libjpeg/jdmerge.c | |
parent | 8b2ea383f5f4dffd15c9684e94b7a0d6868d2711 (diff) |
3rdparty/libjpeg: Updated to version 9e.
Diffstat (limited to '3rdparty/libjpeg/jdmerge.c')
-rw-r--r-- | 3rdparty/libjpeg/jdmerge.c | 73 |
1 files changed, 33 insertions, 40 deletions
diff --git a/3rdparty/libjpeg/jdmerge.c b/3rdparty/libjpeg/jdmerge.c index 192da5829d0..8ff13143af2 100644 --- a/3rdparty/libjpeg/jdmerge.c +++ b/3rdparty/libjpeg/jdmerge.c @@ -2,7 +2,7 @@ * jdmerge.c * * Copyright (C) 1994-1996, Thomas G. Lane. - * Modified 2013-2015 by Guido Vollbeding. + * Modified 2013-2020 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. * @@ -40,6 +40,12 @@ #ifdef UPSAMPLE_MERGING_SUPPORTED +#if RANGE_BITS < 2 + /* Deliberate syntax err */ + Sorry, this code requires 2 or more range extension bits. +#endif + + /* Private subobject */ typedef struct { @@ -89,28 +95,22 @@ build_ycc_rgb_table (j_decompress_ptr cinfo) INT32 x; SHIFT_TEMPS - upsample->Cr_r_tab = (int *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(int)); - upsample->Cb_b_tab = (int *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(int)); - upsample->Cr_g_tab = (INT32 *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(INT32)); - upsample->Cb_g_tab = (INT32 *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(INT32)); + upsample->Cr_r_tab = (int *) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, (MAXJSAMPLE+1) * SIZEOF(int)); + upsample->Cb_b_tab = (int *) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, (MAXJSAMPLE+1) * SIZEOF(int)); + upsample->Cr_g_tab = (INT32 *) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, (MAXJSAMPLE+1) * SIZEOF(INT32)); + upsample->Cb_g_tab = (INT32 *) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, (MAXJSAMPLE+1) * SIZEOF(INT32)); for (i = 0, x = -CENTERJSAMPLE; i <= MAXJSAMPLE; i++, x++) { /* i is the actual input pixel value, in the range 0..MAXJSAMPLE */ /* The Cb or Cr value we are thinking of is x = i - CENTERJSAMPLE */ /* Cr=>R value is nearest int to 1.402 * x */ - upsample->Cr_r_tab[i] = (int) - RIGHT_SHIFT(FIX(1.402) * x + ONE_HALF, SCALEBITS); + upsample->Cr_r_tab[i] = (int) DESCALE(FIX(1.402) * x, SCALEBITS); /* Cb=>B value is nearest int to 1.772 * x */ - upsample->Cb_b_tab[i] = (int) - RIGHT_SHIFT(FIX(1.772) * x + ONE_HALF, SCALEBITS); + upsample->Cb_b_tab[i] = (int) DESCALE(FIX(1.772) * x, SCALEBITS); /* Cr=>G value is scaled-up -0.714136286 * x */ upsample->Cr_g_tab[i] = (- FIX(0.714136286)) * x; /* Cb=>G value is scaled-up -0.344136286 * x */ @@ -129,28 +129,22 @@ build_bg_ycc_rgb_table (j_decompress_ptr cinfo) INT32 x; SHIFT_TEMPS - upsample->Cr_r_tab = (int *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(int)); - upsample->Cb_b_tab = (int *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(int)); - upsample->Cr_g_tab = (INT32 *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(INT32)); - upsample->Cb_g_tab = (INT32 *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(INT32)); + upsample->Cr_r_tab = (int *) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, (MAXJSAMPLE+1) * SIZEOF(int)); + upsample->Cb_b_tab = (int *) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, (MAXJSAMPLE+1) * SIZEOF(int)); + upsample->Cr_g_tab = (INT32 *) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, (MAXJSAMPLE+1) * SIZEOF(INT32)); + upsample->Cb_g_tab = (INT32 *) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, (MAXJSAMPLE+1) * SIZEOF(INT32)); for (i = 0, x = -CENTERJSAMPLE; i <= MAXJSAMPLE; i++, x++) { /* i is the actual input pixel value, in the range 0..MAXJSAMPLE */ /* The Cb or Cr value we are thinking of is x = i - CENTERJSAMPLE */ /* Cr=>R value is nearest int to 2.804 * x */ - upsample->Cr_r_tab[i] = (int) - RIGHT_SHIFT(FIX(2.804) * x + ONE_HALF, SCALEBITS); + upsample->Cr_r_tab[i] = (int) DESCALE(FIX(2.804) * x, SCALEBITS); /* Cb=>B value is nearest int to 3.544 * x */ - upsample->Cb_b_tab[i] = (int) - RIGHT_SHIFT(FIX(3.544) * x + ONE_HALF, SCALEBITS); + upsample->Cb_b_tab[i] = (int) DESCALE(FIX(3.544) * x, SCALEBITS); /* Cr=>G value is scaled-up -1.428272572 * x */ upsample->Cr_g_tab[i] = (- FIX(1.428272572)) * x; /* Cb=>G value is scaled-up -0.688272572 * x */ @@ -196,7 +190,7 @@ merged_2v_upsample (j_decompress_ptr cinfo, if (upsample->spare_full) { /* If we have a spare row saved from a previous cycle, just return it. */ - jcopy_sample_rows(& upsample->spare_row, 0, output_buf + *out_row_ctr, 0, + jcopy_sample_rows(& upsample->spare_row, output_buf + *out_row_ctr, 1, upsample->out_row_width); num_rows = 1; upsample->spare_full = FALSE; @@ -413,9 +407,8 @@ jinit_merged_upsampler (j_decompress_ptr cinfo) { my_upsample_ptr upsample; - upsample = (my_upsample_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_upsampler)); + upsample = (my_upsample_ptr) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, SIZEOF(my_upsampler)); cinfo->upsample = &upsample->pub; upsample->pub.start_pass = start_pass_merged_upsample; upsample->pub.need_context_rows = FALSE; @@ -426,9 +419,9 @@ jinit_merged_upsampler (j_decompress_ptr cinfo) upsample->pub.upsample = merged_2v_upsample; upsample->upmethod = h2v2_merged_upsample; /* Allocate a spare row buffer */ - upsample->spare_row = (JSAMPROW) - (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (size_t) (upsample->out_row_width * SIZEOF(JSAMPLE))); + upsample->spare_row = (JSAMPROW) (*cinfo->mem->alloc_large) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + (size_t) upsample->out_row_width * SIZEOF(JSAMPLE)); } else { upsample->pub.upsample = merged_1v_upsample; upsample->upmethod = h2v1_merged_upsample; |