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Diffstat (limited to 'plug-ins/common/colorify.c')
| -rw-r--r-- | plug-ins/common/colorify.c | 398 |
1 files changed, 398 insertions, 0 deletions
diff --git a/plug-ins/common/colorify.c b/plug-ins/common/colorify.c new file mode 100644 index 0000000..5bd0a88 --- /dev/null +++ b/plug-ins/common/colorify.c @@ -0,0 +1,398 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * Colorify. Changes the pixel's luminosity to a specified color + * Copyright (C) 1997 Francisco Bustamante + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <libgimp/gimp.h> +#include <libgimp/gimpui.h> + +#include "libgimp/stdplugins-intl.h" + + +#define PLUG_IN_PROC "plug-in-colorify" +#define PLUG_IN_BINARY "colorify" +#define PLUG_IN_ROLE "gimp-colorify" +#define PLUG_IN_VERSION "1.1" + +#define COLOR_SIZE 30 + +static void query (void); +static void run (const gchar *name, + gint nparams, + const GimpParam *param, + gint *nreturn_vals, + GimpParam **return_vals); + +static void colorify (GimpDrawable *drawable, + GimpPreview *preview); +static gboolean colorify_dialog (GimpDrawable *drawable); +static void predefined_color_callback (GtkWidget *widget, + gpointer data); + +typedef struct +{ + GimpRGB color; +} ColorifyVals; + +static ColorifyVals cvals = +{ + { 1.0, 1.0, 1.0, 1.0 } +}; + +static GimpRGB button_color[] = +{ + { 1.0, 0.0, 0.0, 1.0 }, + { 1.0, 1.0, 0.0, 1.0 }, + { 0.0, 1.0, 0.0, 1.0 }, + { 0.0, 1.0, 1.0, 1.0 }, + { 0.0, 0.0, 1.0, 1.0 }, + { 1.0, 0.0, 1.0, 1.0 }, + { 1.0, 1.0, 1.0, 1.0 }, +}; + +const GimpPlugInInfo PLUG_IN_INFO = +{ + NULL, + NULL, + query, + run, +}; + +static GtkWidget *custom_color_button = NULL; + +static gint lum_red_lookup[256]; +static gint lum_green_lookup[256]; +static gint lum_blue_lookup[256]; +static gint final_red_lookup[256]; +static gint final_green_lookup[256]; +static gint final_blue_lookup[256]; + + +MAIN () + +static void +query (void) +{ + static const GimpParamDef args[] = + { + { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" }, + { GIMP_PDB_IMAGE, "image", "Input image" }, + { GIMP_PDB_DRAWABLE, "drawable", "Input drawable" }, + { GIMP_PDB_COLOR, "color", "Color to apply" } + }; + + gimp_install_procedure (PLUG_IN_PROC, + N_("Replace all colors with shades of a specified color"), + "Makes an average of the RGB channels and uses it " + "to set the color", + "Francisco Bustamante", + "Francisco Bustamante", + PLUG_IN_VERSION, + N_("Colorif_y..."), + "RGB*", + GIMP_PLUGIN, + G_N_ELEMENTS (args), 0, + args, NULL); +} + +static void +run (const gchar *name, + gint nparams, + const GimpParam *param, + gint *nreturn_vals, + GimpParam **return_vals) +{ + GimpPDBStatusType status; + static GimpParam values[1]; + GimpDrawable *drawable; + GimpRunMode run_mode; + + INIT_I18N (); + + status = GIMP_PDB_SUCCESS; + run_mode = param[0].data.d_int32; + + values[0].type = GIMP_PDB_STATUS; + values[0].data.d_status = status; + + *nreturn_vals = 1; + *return_vals = values; + + drawable = gimp_drawable_get (param[2].data.d_drawable); + + switch (run_mode) + { + case GIMP_RUN_INTERACTIVE: + gimp_get_data (PLUG_IN_PROC, &cvals); + if (!colorify_dialog (drawable)) + return; + break; + + case GIMP_RUN_NONINTERACTIVE: + if (nparams != 4) + status = GIMP_PDB_CALLING_ERROR; + + if (status == GIMP_PDB_SUCCESS) + cvals.color = param[3].data.d_color; + break; + + case GIMP_RUN_WITH_LAST_VALS: + /* Possibly retrieve data */ + gimp_get_data (PLUG_IN_PROC, &cvals); + break; + + default: + break; + } + + if (status == GIMP_PDB_SUCCESS) + { + gimp_progress_init (_("Colorifying")); + + colorify (drawable, NULL); + + if (run_mode == GIMP_RUN_INTERACTIVE) + gimp_set_data (PLUG_IN_PROC, &cvals, sizeof (ColorifyVals)); + + if (run_mode != GIMP_RUN_NONINTERACTIVE) + gimp_displays_flush (); + } + + gimp_drawable_detach (drawable); + + values[0].data.d_status = status; +} + +static void +colorify_func (const guchar *src, + guchar *dest, + gint bpp, + gpointer data) +{ + gint lum; + + lum = lum_red_lookup[src[0]] + + lum_green_lookup[src[1]] + + lum_blue_lookup[src[2]]; + + dest[0] = final_red_lookup[lum]; + dest[1] = final_green_lookup[lum]; + dest[2] = final_blue_lookup[lum]; + + if (bpp == 4) + dest[3] = src[3]; +} + +static void +colorify (GimpDrawable *drawable, + GimpPreview *preview) +{ + gint i; + + for (i = 0; i < 256; i ++) + { + lum_red_lookup[i] = i * GIMP_RGB_LUMINANCE_RED; + lum_green_lookup[i] = i * GIMP_RGB_LUMINANCE_GREEN; + lum_blue_lookup[i] = i * GIMP_RGB_LUMINANCE_BLUE; + final_red_lookup[i] = i * cvals.color.r; + final_green_lookup[i] = i * cvals.color.g; + final_blue_lookup[i] = i * cvals.color.b; + } + + if (preview) + { + gint width, height, bytes; + guchar *src; + + src = gimp_zoom_preview_get_source (GIMP_ZOOM_PREVIEW (preview), + &width, &height, &bytes); + for (i = 0; i < width * height; i++) + colorify_func (src + i * bytes, src + i * bytes, bytes, NULL); + + gimp_preview_draw_buffer (preview, src, width * bytes); + g_free (src); + } + else + { + GimpPixelRgn srcPR, destPR; + gint x1, y1, x2, y2; + gpointer pr; + gint total_area; + gint area_so_far; + gint count; + + gimp_drawable_mask_bounds (drawable->drawable_id, &x1, &y1, &x2, &y2); + + total_area = (x2 - x1) * (y2 - y1); + area_so_far = 0; + + if (total_area <= 0) + return; + + /* Initialize the pixel regions. */ + gimp_pixel_rgn_init (&srcPR, drawable, x1, y1, (x2 - x1), (y2 - y1), + FALSE, FALSE); + gimp_pixel_rgn_init (&destPR, drawable, x1, y1, (x2 - x1), (y2 - y1), + TRUE, TRUE); + + for (pr = gimp_pixel_rgns_register (2, &srcPR, &destPR), count = 0; + pr != NULL; + pr = gimp_pixel_rgns_process (pr), count++) + { + const guchar *src = srcPR.data; + guchar *dest = destPR.data; + gint row; + + for (row = 0; row < srcPR.h; row++) + { + const guchar *s = src; + guchar *d = dest; + gint pixels = srcPR.w; + + while (pixels--) + { + colorify_func (s, d, srcPR.bpp, NULL); + + s += srcPR.bpp; + d += destPR.bpp; + } + + src += srcPR.rowstride; + dest += destPR.rowstride; + } + + area_so_far += srcPR.w * srcPR.h; + + if ((count % 16) == 0) + gimp_progress_update ((gdouble) area_so_far / (gdouble) total_area); + } + + /* update the processed region */ + gimp_drawable_flush (drawable); + gimp_drawable_merge_shadow (drawable->drawable_id, TRUE); + gimp_drawable_update (drawable->drawable_id, x1, y1, (x2 - x1), (y2 - y1)); + } +} + +static gboolean +colorify_dialog (GimpDrawable *drawable) +{ + GtkWidget *dialog; + GtkWidget *main_vbox; + GtkWidget *preview; + GtkWidget *label; + GtkWidget *button; + GtkWidget *table; + GtkWidget *color_area; + gint i; + gboolean run; + + gimp_ui_init (PLUG_IN_BINARY, TRUE); + + dialog = gimp_dialog_new (_("Colorify"), PLUG_IN_ROLE, + NULL, 0, + gimp_standard_help_func, PLUG_IN_PROC, + + _("_Cancel"), GTK_RESPONSE_CANCEL, + _("_OK"), GTK_RESPONSE_OK, + + NULL); + + gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog), + GTK_RESPONSE_OK, + GTK_RESPONSE_CANCEL, + -1); + + gimp_window_set_transient (GTK_WINDOW (dialog)); + + main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12); + gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12); + gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))), + main_vbox, TRUE, TRUE, 0); + gtk_widget_show (main_vbox); + + preview = gimp_zoom_preview_new_from_drawable_id (drawable->drawable_id); + gtk_box_pack_start (GTK_BOX (main_vbox), preview, TRUE, TRUE, 0); + gtk_widget_show (preview); + g_signal_connect_swapped (preview, "invalidated", + G_CALLBACK (colorify), + drawable); + + table = gtk_table_new (2, 7, TRUE); + gtk_table_set_row_spacings (GTK_TABLE (table), 6); + gtk_table_set_col_spacings (GTK_TABLE (table), 6); + gtk_box_pack_start (GTK_BOX (main_vbox), table, FALSE, FALSE, 0); + gtk_widget_show (table); + + label = gtk_label_new (_("Custom color:")); + gtk_table_attach (GTK_TABLE (table), label, 4, 6, 0, 1, + GTK_FILL, GTK_FILL, 0, 0); + gtk_widget_show (label); + + custom_color_button = gimp_color_button_new (_("Colorify Custom Color"), + COLOR_SIZE, COLOR_SIZE, + &cvals.color, + GIMP_COLOR_AREA_FLAT); + g_signal_connect (custom_color_button, "color-changed", + G_CALLBACK (gimp_color_button_get_color), + &cvals.color); + g_signal_connect_swapped (custom_color_button, "color-changed", + G_CALLBACK (gimp_preview_invalidate), + preview); + + gtk_table_attach (GTK_TABLE (table), custom_color_button, 6, 7, 0, 1, + GTK_FILL, GTK_FILL, 0, 0); + gtk_widget_show (custom_color_button); + + for (i = 0; i < 7; i++) + { + button = gtk_button_new (); + color_area = gimp_color_area_new (&button_color[i], + GIMP_COLOR_AREA_FLAT, + GDK_BUTTON2_MASK); + gtk_widget_set_size_request (GTK_WIDGET (color_area), + COLOR_SIZE, COLOR_SIZE); + gtk_container_add (GTK_CONTAINER (button), color_area); + g_signal_connect (button, "clicked", + G_CALLBACK (predefined_color_callback), + &button_color[i]); + gtk_widget_show (color_area); + + gtk_table_attach (GTK_TABLE (table), button, i, i + 1, 1, 2, + GTK_FILL, GTK_FILL, 0, 0); + gtk_widget_show (button); + } + + gtk_widget_show (dialog); + + run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK); + + gtk_widget_destroy (dialog); + + return run; +} + +static void +predefined_color_callback (GtkWidget *widget, + gpointer data) +{ + gimp_color_button_set_color (GIMP_COLOR_BUTTON (custom_color_button), + (GimpRGB *) data); +} |