[php-src] master: Sync gd 2 4 (#22532)

Author: Pierre Joye (pierrejoye)
Committer: GitHub (web-flow)
Pusher: pierrejoye
Date: 2026-07-16T21:46:18+07:00

Commit: https://github.com/php/php-src/commit/d826d4948324d50a6ae36b4fb8606061b866e54c
Raw diff: https://github.com/php/php-src/commit/d826d4948324d50a6ae36b4fb8606061b866e54c.diff

Sync gd 2 4 (#22532)

1st part of syncing bundled LibGd to ext/gd/libgd
# Updated/Fixed

- Color Match improvement using Lab* + Delta-E and actual % as input
- Fix and improve freetype rendering and merge both php's libgd + libgd "new encoding"
 -  Fix RAMQ rendering
- All codecs with conformance tests (upstream, C)
- Perceptual difference (upstream C, will be exposed so php's tests can rely on it
- libgd codecs include gif, bmp, webp and jxl full support including animation. Tiff read/write multipages. all BMP format supported but OS/2.

Many of these additions or changes work already with existing php's apis.

2D vector APIs and all new Codecs or Gd\* APIs will be a separe PR+RFC. See https://wiki.php.net/rfc/ext-gd-2.4

Changed paths:
  A  ext/gd/libgd/.clang-format
  A  ext/gd/libgd/entities.h
  A  ext/gd/libgd/ftraster/gd_ft_math.c
  A  ext/gd/libgd/ftraster/gd_ft_math.h
  A  ext/gd/libgd/ftraster/gd_ft_raster.c
  A  ext/gd/libgd/ftraster/gd_ft_raster.h
  A  ext/gd/libgd/ftraster/gd_ft_stroker.c
  A  ext/gd/libgd/ftraster/gd_ft_stroker.h
  A  ext/gd/libgd/ftraster/gd_ft_types.h
  A  ext/gd/libgd/gd_array.c
  A  ext/gd/libgd/gd_array.h
  A  ext/gd/libgd/gd_color.c
  A  ext/gd/libgd/gd_color.h
  A  ext/gd/libgd/gd_color_map.c
  A  ext/gd/libgd/gd_color_map.h
  A  ext/gd/libgd/gd_compositor.c
  A  ext/gd/libgd/gd_compositor.h
  A  ext/gd/libgd/gd_draw.c
  A  ext/gd/libgd/gd_draw_blend.c
  A  ext/gd/libgd/gd_draw_blend.h
  A  ext/gd/libgd/gd_filename.c
  A  ext/gd/libgd/gd_fixed.h
  A  ext/gd/libgd/gd_gradient.c
  A  ext/gd/libgd/gd_gradient.h
  A  ext/gd/libgd/gd_heif.c
  A  ext/gd/libgd/gd_jxl.c
  A  ext/gd/libgd/gd_metadata.c
  A  ext/gd/libgd/gd_nnquant.c
  A  ext/gd/libgd/gd_nnquant.h
  A  ext/gd/libgd/gd_path.c
  A  ext/gd/libgd/gd_path.h
  A  ext/gd/libgd/gd_path_arc.c
  A  ext/gd/libgd/gd_path_arc.h
  A  ext/gd/libgd/gd_path_dash.c
  A  ext/gd/libgd/gd_path_dash.h
  A  ext/gd/libgd/gd_path_matrix.c
  A  ext/gd/libgd/gd_path_matrix.h
  A  ext/gd/libgd/gd_path_outline.h
  A  ext/gd/libgd/gd_path_stroke.c
  A  ext/gd/libgd/gd_perceptual_diff.c
  A  ext/gd/libgd/gd_qoi.c
  A  ext/gd/libgd/gd_qoi.h
  A  ext/gd/libgd/gd_readimage.c
  A  ext/gd/libgd/gd_span_rle.c
  A  ext/gd/libgd/gd_span_rle.h
  A  ext/gd/libgd/gd_surface.c
  A  ext/gd/libgd/gd_surface.h
  A  ext/gd/libgd/gd_tiff.c
  A  ext/gd/libgd/gd_uhdr.c
  A  ext/gd/libgd/gd_vector2d.h
  A  ext/gd/libgd/gd_vector2d_private.h
  A  ext/gd/libgd/gd_version.c
  A  ext/gd/libgd/gdfx.c
  A  ext/gd/libgd/gdfx.h
  A  ext/gd/tests/imagepng_filters.phpt
  M  ext/gd/config.m4
  M  ext/gd/config.w32
  M  ext/gd/gd.c
  M  ext/gd/libgd/bmp.h
  M  ext/gd/libgd/gd.c
  M  ext/gd/libgd/gd.h
  M  ext/gd/libgd/gd2copypal.c
  M  ext/gd/libgd/gd2time.c
  M  ext/gd/libgd/gd2topng.c
  M  ext/gd/libgd/gd_avif.c
  M  ext/gd/libgd/gd_bmp.c
  M  ext/gd/libgd/gd_color_match.c
  M  ext/gd/libgd/gd_crop.c
  M  ext/gd/libgd/gd_errors.h
  M  ext/gd/libgd/gd_filter.c
  M  ext/gd/libgd/gd_gd.c
  M  ext/gd/libgd/gd_gd2.c
  M  ext/gd/libgd/gd_gif_in.c
  M  ext/gd/libgd/gd_gif_out.c
  M  ext/gd/libgd/gd_intern.h
  M  ext/gd/libgd/gd_interpolation.c
  M  ext/gd/libgd/gd_io.c
  M  ext/gd/libgd/gd_io.h
  M  ext/gd/libgd/gd_io_dp.c
  M  ext/gd/libgd/gd_io_file.c
  M  ext/gd/libgd/gd_io_ss.c
  M  ext/gd/libgd/gd_jpeg.c
  M  ext/gd/libgd/gd_matrix.c
  M  ext/gd/libgd/gd_png.c
  M  ext/gd/libgd/gd_rotate.c
  M  ext/gd/libgd/gd_security.c
  M  ext/gd/libgd/gd_ss.c
  M  ext/gd/libgd/gd_tga.c
  M  ext/gd/libgd/gd_tga.h
  M  ext/gd/libgd/gd_topal.c
  M  ext/gd/libgd/gd_transform.c
  M  ext/gd/libgd/gd_wbmp.c
  M  ext/gd/libgd/gd_webp.c
  M  ext/gd/libgd/gd_xbm.c
  M  ext/gd/libgd/gdcache.c
  M  ext/gd/libgd/gdcache.h
  M  ext/gd/libgd/gddemo.c
  M  ext/gd/libgd/gdfontg.c
  M  ext/gd/libgd/gdfontg.h
  M  ext/gd/libgd/gdfontl.c
  M  ext/gd/libgd/gdfontl.h
  M  ext/gd/libgd/gdfontmb.c
  M  ext/gd/libgd/gdfontmb.h
  M  ext/gd/libgd/gdfonts.c
  M  ext/gd/libgd/gdfonts.h
  M  ext/gd/libgd/gdfontt.c
  M  ext/gd/libgd/gdfontt.h
  M  ext/gd/libgd/gdft.c
  M  ext/gd/libgd/gdhelpers.c
  M  ext/gd/libgd/gdhelpers.h
  M  ext/gd/libgd/gdkanji.c
  M  ext/gd/libgd/gdparttopng.c
  M  ext/gd/libgd/gdtables.c
  M  ext/gd/libgd/gdtest.c
  M  ext/gd/libgd/gdtestft.c
  M  ext/gd/libgd/gdtopng.c
  M  ext/gd/libgd/gdxpm.c
  M  ext/gd/libgd/jisx0208.h
  M  ext/gd/libgd/pngtogd.c
  M  ext/gd/libgd/pngtogd2.c
  M  ext/gd/libgd/testac.c
  M  ext/gd/libgd/wbmp.c
  M  ext/gd/libgd/wbmp.h
  M  ext/gd/libgd/webpng.c
  M  ext/gd/tests/bug43073.phpt
  M  ext/gd/tests/bug48732-mb.phpt
  M  ext/gd/tests/bug48732.phpt
  M  ext/gd/tests/bug48801-mb.phpt
  M  ext/gd/tests/bug48801.phpt
  M  ext/gd/tests/bug53504.phpt
  M  ext/gd/tests/bug65148.phpt
  M  ext/gd/tests/bug73272.png
  M  ext/gd/tests/bug73291.phpt
  M  ext/gd/tests/createfromwbmp2_extern.phpt
  M  ext/gd/tests/gd223.png
  M  main/php_compat.h


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