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Alx Sa d88cd4cb7a plug-ins: Improve color detection in file-pdf-export 
Resolves #14583
If the user chooses to vectorize PDF layers with single colors,
get_layer_color () is run to use histograms to determine if they
are indeed a single color. gimp_drawable_histogram () is used to
get the RGB values as averages. This function returns values in the
0...255 range for 8-bit images and 0.0...1.0 range for all the
other precisions.

However, we did not properly normalize the values, resulting in
blown-out white layers when exporting 8-bit images. This patch
checks if the image is 8-bit and divides all values by 255.0f in
that case.

It also checks if the image is in linear precision or not, as
gegl_color_set_rgba () assumes the color values are linear. If not,
gegl_color_set_pixel () is used instead. Finally, the color mode
checks are made a bit more robust in preparation for future color
modes like CMYK.
2026-04-04 12:38:36 +00:00
..
common plug-ins: Improve color detection in file-pdf-export 2026-04-04 12:38:36 +00:00
file-bmp plug-ins: Use fopen_s on Windows to fix CRT_INSECURE_DEPRECATE warns 2026-04-01 07:16:32 -03:00
file-dds app, lib*, plug-ins: Use sscanf_s on Windows to fix CRT_INSECURE_DEPRECATE warns 2026-03-30 22:31:57 -03:00
file-exr plug-ins: Include <memory> when on MSVC 2026-04-03 08:29:52 -03:00
file-faxg3 app, libgimpthumb, plug-ins, tools: Fix POSIX namespace warnings on MSVC 2026-02-28 10:06:46 -03:00
file-fits plug-ins: Protect against too-large FITS images 2026-03-19 12:05:47 +00:00
file-fli plug-ins: Do not call in-build-gimp.py before building plugins 2026-01-04 09:39:02 -03:00
file-icns app, libgimp*, plug-ins: Use strncpy_s on Windows to fix CRT_INSECURE_DEPRECATE 2026-03-31 13:31:33 -03:00
file-ico app, plug-ins: Use strcpy_s on Windows to fix CRT_INSECURE_DEPRECATE warnings 2026-03-30 22:32:01 -03:00
file-jpeg file-jpeg: fix loading of photoshop path split across multiple segments 2026-03-12 15:08:39 +01:00
file-psd plug-ins: Fix many type conversions on file-psd 2026-03-29 18:31:52 -03:00
file-raw app, lib*, plug-ins: Use sscanf_s on Windows to fix CRT_INSECURE_DEPRECATE warns 2026-03-30 22:31:57 -03:00
file-sgi plug-ins: Do not call in-build-gimp.py before building plugins 2026-01-04 09:39:02 -03:00
file-tiff plug-ins: Cast g_string_append_c argument to gchar on file-tiff 2026-03-30 16:09:13 -03:00
file-webp plug-ins: Use _fileno on Windows 2026-04-03 11:09:54 -03:00
filter-browser plug-ins: improve describing enum and choice arguments. 2026-03-06 22:49:14 +01:00
flame app, plug-ins: Comment unused stuff on macOS 2026-03-29 17:19:42 -03:00
fractal-explorer app, plug-ins: More sscanf_s on Windows 2026-03-31 21:44:51 -03:00
gfig app, plug-ins: More sscanf_s on Windows 2026-03-31 21:44:51 -03:00
gimpressionist plug-ins: Do not call in-build-gimp.py before building plugins 2026-01-04 09:39:02 -03:00
gradient-flare plug-ins: Use fscanf_s on Windows to fix CRT_INSECURE_DEPRECATE warnings 2026-03-31 13:31:33 -03:00
help app, libgimp, libgimpbase, libgimpwidgets, plug-ins: Add macro to unused code 2026-03-29 17:19:42 -03:00
help-browser plug-ins: Do not call in-build-gimp.py before building plugins 2026-01-04 09:39:02 -03:00
ifs-compose plug-ins: Do not call in-build-gimp.py before building plugins 2026-01-04 09:39:02 -03:00
imagemap plug-ins: Forgot a macro 2026-03-31 18:58:47 -03:00
lighting plug-ins: Use fscanf_s on Windows to fix CRT_INSECURE_DEPRECATE warnings 2026-03-31 13:31:33 -03:00
map-object plug-ins: Do not call in-build-gimp.py before building plugins 2026-01-04 09:39:02 -03:00
metadata app, libgimp*, plug-ins: Use strtok_s on Windows to fix CRT_INSECURE_DEPRECATE 2026-03-31 16:27:25 -03:00
pagecurl plug-ins: Do not call in-build-gimp.py before building plugins 2026-01-04 09:39:02 -03:00
print plug-ins: Do not call in-build-gimp.py before building plugins 2026-01-04 09:39:02 -03:00
python tests: fix typo psp has extension psp not psd 2026-03-11 09:28:39 -04:00
screenshot plug-ins: Show correct cursor in Windows Screenshot 2026-03-05 15:54:34 +00:00
script-fu plug-ins: Fix some problematic Windows functions 2026-03-31 21:44:51 -03:00
selection-to-path app, plug-ins: Comment unused stuff on macOS 2026-03-29 17:19:42 -03:00
twain plug-ins: Do not call in-build-gimp.py before building plugins 2026-01-04 09:39:02 -03:00
generate_mime_ext.py build/macos, plug-ins: Generate file associations for macOS automatically 2026-01-17 18:13:23 -03:00
meson.build plug-ins: Fix meson warning about missing check: kwarg 2026-03-27 09:53:03 -03:00