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code/build_everything_Linux.sh

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+#!/bin/bash
+
+for dir in *
+do
+    if test -f "$dir/build_linux.sh"
+    then
+      echo "building in $dir"
+     ( cd "$dir" && bash ./build_linux.sh ) || exit 1
+    fi
+done
+
+  mkdir -p LinuxBinaries
+  mv $(find . -name '*.so') LinuxBinaries/
+
+

code/build_everything_Windows_MYSYS2.sh

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+#!/bin/bash
+
+for dir in *
+do
+    if test -f "$dir/build_linux.sh"
+    then
+      echo "building in $dir"
+     ( cd "$dir" && bash ./build_linux.sh ) || exit 1
+    fi
+done
+
+  mkdir -p WindowsBinaries
+  mv $(find . -name '*.dll') WindowsBinaries/
+
+

code/invert_transparency_D/build_linux.sh

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+#!/bin/bash
+
+
+meson setup --buildtype=release build && ninja -C build

code/invert_transparency_D/config.h

@@ -0,0 +1,39 @@
+/*
+ * Autogenerated by the Meson build system.
+ * Do not edit, your changes will be lost.
+ */
+
+#pragma once
+
+#define ARCH_X86 1
+
+#define ARCH_X86_64 1
+
+#define GEGL_LIBRARY "gegl-0.4"
+
+#define GEGL_MAJOR_VERSION 0
+
+#define GEGL_MICRO_VERSION 34
+
+#define GEGL_MINOR_VERSION 4
+
+#undef GEGL_UNSTABLE
+
+#define GETTEXT_PACKAGE "gegl-0.4"
+
+#define HAVE_EXECINFO_H
+
+#define HAVE_FSYNC
+
+#undef HAVE_GEXIV2
+
+#undef HAVE_LUA
+
+#define HAVE_MALLOC_TRIM
+
+#undef HAVE_MRG
+
+#define HAVE_STRPTIME
+
+#define HAVE_UNISTD_H
+

code/invert_transparency_D/invert-alpha.c

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+/* This file is an image processing operation for GEGL
+ *
+ * GEGL is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * GEGL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with GEGL; if not, see <https://www.gnu.org/licenses/>.
+ *
+ * Copyright 2006 Øyvind Kolås <pippin@gimp.org>
+ * Beaver's Invert Transparency filter.  2022 
+ */
+
+/*
+This is the GEGL Graph of invert transparency. So  users can test it without installing.
+
+id=1  color-overlay value=#ffffff gimp:layer-mode layer-mode=behind opacity=1.00 aux=[ color value=#000000  ]  id=2 gimp:layer-mode layer-mode=color-erase opacity=1.00 aux=[ color value=#ffffff ] crop
+color-overlay value=#0aff00
+
+--
+The code for this filter is very simple. Thus a good plugin to study for people who want to develop new GEGL filters. All it is is a embedded GEGL Graph and a color overlay.
+ */
+
+#include "config.h"
+#include <glib/gi18n-lib.h>
+
+#ifdef GEGL_PROPERTIES
+
+#define TUTORIAL \
+" id=1  color-overlay value=#ffffff gimp:layer-mode layer-mode=behind opacity=1.00 aux=[ color value=#000000  ]  id=2 gimp:layer-mode layer-mode=color-erase opacity=1.00 aux=[ color value=#ffffff ] crop "\
+
+
+
+property_color (value, _("Color"), "#000000")
+    description (_("The color to paint over the inverted transparency"))
+    ui_meta     ("role", "color-primary")
+
+#else
+
+#define GEGL_OP_META
+#define GEGL_OP_NAME     invert_alpha
+#define GEGL_OP_C_SOURCE invert-alpha.c
+
+#include "gegl-op.h"
+
+static void attach (GeglOperation *operation)
+{
+  GeglNode *gegl = operation->node;
+  GeglNode *input, *output, *it, *col;
+
+  input    = gegl_node_get_input_proxy (gegl, "input");
+  output   = gegl_node_get_output_proxy (gegl, "output");
+
+  it    = gegl_node_new_child (gegl,
+                                  "operation", "gegl:gegl", "string", TUTORIAL,
+                                  NULL);
+
+  col    = gegl_node_new_child (gegl,
+                                  "operation", "gegl:color-overlay",
+                                  NULL);
+
+      gegl_operation_meta_redirect (operation, "value", col, "value");
+
+      gegl_node_link_many (input, it, col, output, NULL);
+}
+
+static void
+gegl_op_class_init (GeglOpClass *klass)
+{
+  GeglOperationClass *operation_class;
+
+  operation_class = GEGL_OPERATION_CLASS (klass);
+
+  operation_class->attach = attach;
+
+  gegl_operation_class_set_keys (operation_class,
+    "name",        "lb:invert-transparency",
+    "title",       _("Invert Transparency"),
+    "categories",  "Technical",
+    "reference-hash", "2kc15254a2385110001adc2544142af",
+    "description", _("Replace Transparency with color and color with transparency "
+                     ""),
+    NULL);
+}
+
+#endif

code/invert_transparency_D/meson.build

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+project('invert-alpha', 'c',
+  version : '0.1',
+  license : 'GPL-3.0-or-later')
+
+# These arguments are only used to build the shared library
+# not the executables that use the library.
+lib_args = ['-DBUILDING_INVERTALPHA']
+
+gegl = dependency('gegl-0.3', required : false)
+if not gegl.found()
+    gegl = dependency('gegl-0.4')
+endif
+shlib = shared_library('invert-alpha', 'invert-alpha.c', 'config.h',
+  c_args : lib_args,
+  dependencies : gegl,
+  name_prefix : '',
+)
+
+# Make this library usable as a Meson subproject.
+stroke_dep = declare_dependency(
+  include_directories: include_directories('.'),
+  link_with : shlib)
+

code/shapes/build_linux.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+
+meson setup --buildtype=release build && ninja -C build

code/shapes/config.h

@@ -0,0 +1,39 @@
+/*
+ * Autogenerated by the Meson build system.
+ * Do not edit, your changes will be lost.
+ */
+
+#pragma once
+
+#define ARCH_X86 1
+
+#define ARCH_X86_64 1
+
+#define GEGL_LIBRARY "gegl-0.4"
+
+#define GEGL_MAJOR_VERSION 0
+
+#define GEGL_MICRO_VERSION 34
+
+#define GEGL_MINOR_VERSION 4
+
+#undef GEGL_UNSTABLE
+
+#define GETTEXT_PACKAGE "gegl-0.4"
+
+#define HAVE_EXECINFO_H
+
+#define HAVE_FSYNC
+
+#undef HAVE_GEXIV2
+
+#undef HAVE_LUA
+
+#define HAVE_MALLOC_TRIM
+
+#undef HAVE_MRG
+
+#define HAVE_STRPTIME
+
+#define HAVE_UNISTD_H
+