python and C plugin
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LICENSE
2
LICENSE
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MIT License
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Copyright (c) <year> <copyright holders>
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Copyright (c) 2021 ryuku (ryuku@ennui.software - https://git.ennui.software/)
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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148
circle_map.c
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148
circle_map.c
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/*
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MIT License
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Copyright (c) 2021 ryuku (ryuku@ennui.software - https://git.ennui.software/)
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <gimp-2.0/libgimp/gimp.h>
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#include <math.h>
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#include <string.h>
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#include <unistd.h>
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static void query(void);
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static void run(const gchar* name, gint nparams, const GimpParam* param, gint* nreturn_vals, GimpParam** return_vals);
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GimpPlugInInfo PLUG_IN_INFO ={ NULL, NULL, query, run };
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MAIN()
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static void query(void)
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{
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static GimpParamDef args[] =
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{
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{
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GIMP_PDB_INT32,
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"run-mode",
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"Run mode"
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},
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{
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GIMP_PDB_IMAGE,
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"image",
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"Input image"
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},
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{
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GIMP_PDB_DRAWABLE,
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"drawable",
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"Input drawable"
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}
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};
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gimp_install_procedure(
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"c-plug-in-circle-map",
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"square image to circle",
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"square image to circle",
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"Ryuku (ryuku@ennui.software - https://git.ennui.software/)",
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"Ryuku",
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"2021",
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"_Circle map...",
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"RGB*, GRAY*",
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GIMP_PLUGIN,
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G_N_ELEMENTS (args),
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0,
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args,
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NULL
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);
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gimp_plugin_menu_register("c-plug-in-circle-map", "<Image>/Filters/Misc");
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}
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static void run(const gchar* name, gint nparams, const GimpParam* param, gint* nreturn_vals, GimpParam** return_vals)
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{
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static GimpParam values[1];
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GimpPDBStatusType status = GIMP_PDB_SUCCESS;
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*nreturn_vals = 1;
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*return_vals = values;
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values[0].type = GIMP_PDB_STATUS;
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values[0].data.d_status = status;
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gimp_progress_init("Processing..");
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gint32 image_id = param[1].data.d_image;
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gint32 layer_id = param[2].data.d_drawable;
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GimpDrawable* layer = gimp_drawable_get(layer_id);
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guint width = layer->width;
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gimp_drawable_detach(layer);
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gimp_layer_scale(layer_id, width, width, FALSE);
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gimp_layer_add_alpha(layer_id);
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gint32 new_layer_id = gimp_layer_new(image_id, "circle map", width, width, GIMP_RGBA_IMAGE, 100.0, GIMP_NORMAL_MODE);
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gimp_image_insert_layer(image_id, new_layer_id, 0, 0);
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gdouble midx = width / 2;
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gdouble midy = width / 2;
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layer = gimp_drawable_get(layer_id);
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GimpDrawable* new_layer = gimp_drawable_get(new_layer_id);
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GimpPixelRgn orig_rgn;
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gimp_pixel_rgn_init(&orig_rgn, layer, 0, 0, width, width, FALSE, FALSE);
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GimpPixelRgn rgn;
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gimp_pixel_rgn_init(&rgn, new_layer, 0, 0, width, width, FALSE, FALSE);
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gdouble mx, my, nx, ny;
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gint nbx, nby;
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guchar* buf = malloc(4 * width * width);
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guchar* new_buf = malloc(4 * width * width);
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memset(buf, 0, 4 * width * width);
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memset(new_buf, 0, 4 * width * width);
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gimp_pixel_rgn_get_rect(&orig_rgn, buf, 0, 0, width, width);
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for (guint x = 0; x < width; x++)
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{
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for (guint y = 0; y < width; y++)
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{
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mx = (x - midx) / midx;
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my = (y - midy) / midy;
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nx = mx * pow((1 - (my * my) / 2), 0.5);
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ny = my * pow((1 - (mx * mx) / 2), 0.5);
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nx = nx * midx + midx;
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ny = ny * midy + midy;
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nbx = nx;
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nby = ny;
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memcpy(new_buf + ((nbx + width * nby) * 4), buf + ((x + width * y) * 4), 4);
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gimp_progress_update(y / width);
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}
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}
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gimp_pixel_rgn_set_rect(&rgn, new_buf, 0, 0, width, width);
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free(buf);
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free(new_buf);
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gimp_drawable_flush(new_layer);
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gimp_drawable_update(new_layer_id, 0, 0, width, width);
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gimp_drawable_detach(layer);
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gimp_drawable_detach(new_layer);
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}
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87
circle_map.py
Executable file
87
circle_map.py
Executable file
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#!/usr/bin/env python
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# MIT License
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# Copyright (c) 2021 ryuku (ryuku@ennui.software - https://git.ennui.software/)
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
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# and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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# DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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import math
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import string
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from gimpfu import *
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from array import array
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import sys
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def python_circle_map(image, layer):
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pdb.gimp_image_undo_group_start(image)
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pdb.gimp_context_push()
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width = min(layer.width, layer.height)
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pdb.gimp_layer_scale(layer,width,width,FALSE)
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if not pdb.gimp_drawable_has_alpha(layer): pdb.gimp_layer_add_alpha(layer)
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midx = width / 2.0
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midy = width / 2.0
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new_layer = pdb.gimp_layer_new(image, width, width, RGBA_IMAGE, 'circle map', 100, LAYER_MODE_NORMAL)
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pdb.gimp_image_insert_layer(image, new_layer, None, 0)
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pixel_rgn_orig = layer.get_pixel_rgn(0, 0, width, width)
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pixel_rgn = new_layer.get_pixel_rgn(0, 0, width, width)
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orig_buf = pixel_rgn_orig[0 : width, 0 : width]
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buf = ['\0' for x in range(0, width * width * 4)]
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x = 0
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y = 0
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while x < int(width):
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while y < int(width):
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mx = (x - midx) / midx
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my = (y - midy) / midy
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nx = mx * (1 - (my * my) / 2) ** 0.5
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ny = my * (1 - (mx * mx) / 2) ** 0.5
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nx = int(nx * midx + midx)
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ny = int(ny * midy + midy)
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obi = (x + width * y) * 4
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bi = (nx + width * ny) * 4
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buf[bi:bi + 4] = orig_buf[obi:obi + 4]
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y += 1
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x += 1
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y = 0
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pdb.gimp_progress_update(float(x) / width)
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pixel_rgn[0 : width, 0 : width] = ''.join(buf)
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pdb.gimp_drawable_update(new_layer, 0, 0, width, width)
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pdb.gimp_context_pop()
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pdb.gimp_image_undo_group_end(image)
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pdb.gimp_displays_flush()
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register(
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"python-plug-in-circle-map",
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"square image to circle",
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"square image to circle",
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"Ryuku (ryuku@ennui.software - https://git.ennui.software/)",
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"Ryuku",
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"2021",
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"<Image>/Filters/Misc/Circle map...",
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"RGB*, GRAY*",
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[],
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[],
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python_circle_map)
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main()
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