From 3c57dd931145d43f2b0aef96c4d178135956bf91 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 05:13:10 +0200 Subject: Adding upstream version 2.10.36. Signed-off-by: Daniel Baumann --- plug-ins/common/file-aa.c | 412 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 412 insertions(+) create mode 100644 plug-ins/common/file-aa.c (limited to 'plug-ins/common/file-aa.c') diff --git a/plug-ins/common/file-aa.c b/plug-ins/common/file-aa.c new file mode 100644 index 0000000..abc6f9c --- /dev/null +++ b/plug-ins/common/file-aa.c @@ -0,0 +1,412 @@ +/** + * aa.c version 1.0 + * A plugin that uses libaa (ftp://ftp.ta.jcu.cz/pub/aa) to save images as + * ASCII. + * NOTE: This plugin *requires* aalib 1.2 or later. Earlier versions will + * not work. + * Code copied from all over the GIMP source. + * Tim Newsome + */ + +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * 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 . + */ + +#include "config.h" + +#include + +#include + +#include +#include + +#include "libgimp/stdplugins-intl.h" + + +#define SAVE_PROC "file-aa-save" +#define PLUG_IN_BINARY "file-aa" +#define PLUG_IN_ROLE "gimp-file-aa" + + +/* + * Declare some local functions. + */ +static void query (void); +static void run (const gchar *name, + gint nparams, + const GimpParam *param, + gint *nreturn_vals, + GimpParam **return_vals); +static gboolean save_aa (gint32 drawable_ID, + gchar *filename, + gint output_type); +static void gimp2aa (gint32 drawable_ID, + aa_context *context); + +static gint aa_dialog (gint selected); + + +/* + * Some global variables. + */ + +const GimpPlugInInfo PLUG_IN_INFO = +{ + NULL, /* init_proc */ + NULL, /* quit_proc */ + query, /* query_proc */ + run, /* run_proc */ +}; + + +MAIN () + +static void +query (void) +{ + static const GimpParamDef save_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", "Drawable to save"}, + {GIMP_PDB_STRING, "filename", "The name of the file to save the image in"}, + {GIMP_PDB_STRING, "raw-filename", "The name entered"}, + {GIMP_PDB_STRING, "file-type", "File type to use"} + }; + + gimp_install_procedure (SAVE_PROC, + "Saves grayscale image in various text formats", + "This plug-in uses aalib to save grayscale image " + "as ascii art into a variety of text formats", + "Tim Newsome ", + "Tim Newsome ", + "1997", + N_("ASCII art"), + "RGB*, GRAY*, INDEXED*", + GIMP_PLUGIN, + G_N_ELEMENTS (save_args), 0, + save_args, NULL); + + gimp_register_file_handler_mime (SAVE_PROC, "text/plain"); + gimp_register_save_handler (SAVE_PROC, "txt,ansi,text", ""); +} + +/** + * Searches aa_formats defined by aalib to find the index of the type + * specified by string. + * -1 means it wasn't found. + */ +static gint +get_type_from_string (const gchar *string) +{ + gint type = 0; + aa_format **p = (aa_format **) aa_formats; + + while (*p && strcmp ((*p)->formatname, string)) + { + p++; + type++; + } + + if (*p == NULL) + return -1; + + return type; +} + +static void +run (const gchar *name, + gint nparams, + const GimpParam *param, + gint *nreturn_vals, + GimpParam **return_vals) +{ + static GimpParam values[2]; + GimpRunMode run_mode; + GimpPDBStatusType status = GIMP_PDB_SUCCESS; + gint output_type = 0; + gint32 image_ID; + gint32 drawable_ID; + GimpExportReturn export = GIMP_EXPORT_CANCEL; + + INIT_I18N (); + gegl_init (NULL, NULL); + + *nreturn_vals = 1; + *return_vals = values; + + values[0].type = GIMP_PDB_STATUS; + values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR; + + run_mode = param[0].data.d_int32; + image_ID = param[1].data.d_int32; + drawable_ID = param[2].data.d_int32; + + switch (run_mode) + { + case GIMP_RUN_INTERACTIVE: + case GIMP_RUN_WITH_LAST_VALS: + gimp_ui_init (PLUG_IN_BINARY, FALSE); + + export = gimp_export_image (&image_ID, &drawable_ID, "AA", + GIMP_EXPORT_CAN_HANDLE_RGB | + GIMP_EXPORT_CAN_HANDLE_GRAY | + GIMP_EXPORT_CAN_HANDLE_INDEXED | + GIMP_EXPORT_CAN_HANDLE_ALPHA); + + if (export == GIMP_EXPORT_CANCEL) + { + values[0].data.d_status = GIMP_PDB_CANCEL; + return; + } + break; + default: + break; + } + + if (! (gimp_drawable_is_rgb (drawable_ID) || + gimp_drawable_is_gray (drawable_ID))) + { + status = GIMP_PDB_CALLING_ERROR; + } + + if (status == GIMP_PDB_SUCCESS) + { + switch (run_mode) + { + case GIMP_RUN_INTERACTIVE: + gimp_get_data (SAVE_PROC, &output_type); + output_type = aa_dialog (output_type); + if (output_type < 0) + status = GIMP_PDB_CANCEL; + break; + + case GIMP_RUN_NONINTERACTIVE: + /* Make sure all the arguments are there! */ + if (nparams != 6) + { + status = GIMP_PDB_CALLING_ERROR; + } + else + { + output_type = get_type_from_string (param[5].data.d_string); + if (output_type < 0) + status = GIMP_PDB_CALLING_ERROR; + } + break; + + case GIMP_RUN_WITH_LAST_VALS: + gimp_get_data (SAVE_PROC, &output_type); + break; + + default: + break; + } + } + + if (status == GIMP_PDB_SUCCESS) + { + if (save_aa (drawable_ID, param[3].data.d_string, output_type)) + { + gimp_set_data (SAVE_PROC, &output_type, sizeof (output_type)); + } + else + { + status = GIMP_PDB_EXECUTION_ERROR; + } + } + + if (export == GIMP_EXPORT_EXPORT) + gimp_image_delete (image_ID); + + values[0].data.d_status = status; +} + +/** + * The actual save function. What it's all about. + * The image type has to be GRAY. + */ +static gboolean +save_aa (gint32 drawable_ID, + gchar *filename, + gint output_type) +{ + aa_savedata savedata; + aa_context *context; + aa_format format = *aa_formats[output_type]; + + format.width = gimp_drawable_width (drawable_ID) / 2; + format.height = gimp_drawable_height (drawable_ID) / 2; + + /* Get a libaa context which will save its output to filename. */ + savedata.name = filename; + savedata.format = &format; + + context = aa_init (&save_d, &aa_defparams, &savedata); + if (!context) + return FALSE; + + gimp2aa (drawable_ID, context); + aa_flush (context); + aa_close (context); + + return TRUE; +} + +static void +gimp2aa (gint32 drawable_ID, + aa_context *context) +{ + GeglBuffer *buffer; + const Babl *format; + aa_renderparams *renderparams; + gint width; + gint height; + gint x, y; + gint bpp; + guchar *buf; + guchar *p; + + buffer = gimp_drawable_get_buffer (drawable_ID); + + width = aa_imgwidth (context); + height = aa_imgheight (context); + + switch (gimp_drawable_type (drawable_ID)) + { + case GIMP_GRAY_IMAGE: + format = babl_format ("Y' u8"); + break; + + case GIMP_GRAYA_IMAGE: + format = babl_format ("Y'A u8"); + break; + + case GIMP_RGB_IMAGE: + case GIMP_INDEXED_IMAGE: + format = babl_format ("R'G'B' u8"); + break; + + case GIMP_RGBA_IMAGE: + case GIMP_INDEXEDA_IMAGE: + format = babl_format ("R'G'B'A u8"); + break; + + default: + g_return_if_reached (); + break; + } + + bpp = babl_format_get_bytes_per_pixel (format); + + buf = g_new (guchar, width * bpp); + + for (y = 0; y < height; y++) + { + gegl_buffer_get (buffer, GEGL_RECTANGLE (0, y, width, 1), 1.0, + format, buf, + GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE); + + switch (bpp) + { + case 1: /* GRAY */ + for (x = 0, p = buf; x < width; x++, p++) + aa_putpixel (context, x, y, *p); + break; + + case 2: /* GRAYA, blend over black */ + for (x = 0, p = buf; x < width; x++, p += 2) + aa_putpixel (context, x, y, (p[0] * (p[1] + 1)) >> 8); + break; + + case 3: /* RGB */ + for (x = 0, p = buf; x < width; x++, p += 3) + aa_putpixel (context, x, y, + GIMP_RGB_LUMINANCE (p[0], p[1], p[2]) + 0.5); + break; + + case 4: /* RGBA, blend over black */ + for (x = 0, p = buf; x < width; x++, p += 4) + aa_putpixel (context, x, y, + ((guchar) (GIMP_RGB_LUMINANCE (p[0], p[1], p[2]) + 0.5) + * (p[3] + 1)) >> 8); + break; + + default: + g_assert_not_reached (); + break; + } + } + + g_free (buf); + + g_object_unref (buffer); + + renderparams = aa_getrenderparams (); + renderparams->dither = AA_FLOYD_S; + + aa_render (context, renderparams, 0, 0, + aa_scrwidth (context), aa_scrheight (context)); +} + +static gint +aa_dialog (gint selected) +{ + GtkWidget *dialog; + GtkWidget *hbox; + GtkWidget *label; + GtkWidget *combo; + gint i; + + /* Create the actual window. */ + dialog = gimp_export_dialog_new (_("Text"), PLUG_IN_BINARY, SAVE_PROC); + + hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6); + gtk_container_set_border_width (GTK_CONTAINER (hbox), 12); + gtk_box_pack_start (GTK_BOX (gimp_export_dialog_get_content_area (dialog)), + hbox, FALSE, FALSE, 0); + gtk_widget_show (hbox); + + label = gtk_label_new_with_mnemonic (_("_Format:")); + gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0); + gtk_widget_show (label); + + combo = g_object_new (GIMP_TYPE_INT_COMBO_BOX, NULL); + gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0); + gtk_widget_show (combo); + + gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo); + + for (i = 0; aa_formats[i]; i++) + gimp_int_combo_box_append (GIMP_INT_COMBO_BOX (combo), + GIMP_INT_STORE_VALUE, i, + GIMP_INT_STORE_LABEL, aa_formats[i]->formatname, + -1); + + gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo), selected, + G_CALLBACK (gimp_int_combo_box_get_active), + &selected); + + gtk_widget_show (dialog); + + if (gimp_dialog_run (GIMP_DIALOG (dialog)) != GTK_RESPONSE_OK) + selected = -1; + + gtk_widget_destroy (dialog); + + return selected; +} -- cgit v1.2.3