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gimp/plug-ins/common/csource.c

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/* CSource - GIMP Plugin to dump image data in RGB(A) format for C source
* Copyright (C) 1999 Tim Janik
*
* 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 2
* 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 Library General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*
* This plugin is heavily based on the header plugin by Spencer Kimball and
* Peter Mattis.
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "libgimp/gimp.h"
#include <gtk/gtk.h>
typedef struct {
gchar *file_name;
gchar *prefixed_name;
gchar *comment;
gboolean use_comment;
gboolean glib_types;
gboolean stringify;
gboolean alpha;
gdouble opacity;
} Config;
/* --- prototypes --- */
static void query (void);
static void run (gchar *name,
gint nparams,
GParam *param,
gint *nreturn_vals,
GParam **return_vals);
static gint save_image (Config *config,
gint32 image_ID,
gint32 drawable_ID);
static gboolean run_save_dialog (Config *config);
/* --- variables --- */
GPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
/* --- implement main (), provided by libgimp --- */
MAIN ();
/* --- functions --- */
static void
query (void)
{
static GParamDef save_args[] =
{
{ PARAM_INT32, "run_mode", "Interactive" },
{ PARAM_IMAGE, "image", "Input image" },
{ PARAM_DRAWABLE, "drawable", "Drawable to save" },
{ PARAM_STRING, "filename", "The name of the file to save the image in" },
{ PARAM_STRING, "raw_filename", "The name of the file to save the image in" },
};
static int nsave_args = sizeof (save_args) / sizeof (save_args[0]);
gimp_install_procedure ("file_csource_save",
"Dump image data in RGB(A) format for C source",
"FIXME: write help",
"Tim Janik",
"Tim Janik",
"1999",
"<Save>/C-Source",
"RGB*",
PROC_PLUG_IN,
nsave_args, 0,
save_args, NULL);
gimp_register_save_handler ("file_csource_save", "c", "");
}
static void
run (gchar *name,
gint nparams,
GParam *param,
gint *nreturn_vals,
GParam **return_vals)
{
static GParam values[2];
GRunModeType run_mode;
run_mode = param[0].data.d_int32;
*nreturn_vals = 1;
*return_vals = values;
values[0].type = PARAM_STATUS;
values[0].data.d_status = STATUS_CALLING_ERROR;
if (run_mode == RUN_INTERACTIVE &&
strcmp (name, "file_csource_save") == 0)
{
gint32 image_ID = param[1].data.d_int32;
gint32 drawable_ID = param[2].data.d_int32;
GDrawableType drawable_type = gimp_drawable_type (drawable_ID);
Config config = {
param[3].data.d_string,
"gimp_image",
NULL,
FALSE,
TRUE,
TRUE,
(drawable_type == RGBA_IMAGE ||
drawable_type == GRAYA_IMAGE ||
drawable_type == INDEXEDA_IMAGE),
100.0,
};
Parasite *parasite;
gchar *x;
parasite = gimp_image_find_parasite (image_ID, "gimp-comment");
if (parasite)
{
config.comment = g_strdup (parasite->data);
parasite_free (parasite);
}
x = config.comment;
if (run_save_dialog (&config))
{
if (x != config.comment &&
!(x && config.comment && strcmp (x, config.comment) == 0))
{
if (!config.comment || !config.comment[0])
gimp_image_detach_parasite (image_ID, "gimp-comment");
else
{
parasite = parasite_new ("gimp-comment",
PARASITE_PERSISTENT,
strlen (config.comment) + 1,
config.comment);
gimp_image_attach_parasite (image_ID, parasite);
parasite_free (parasite);
}
}
*nreturn_vals = 1;
if (save_image (&config, image_ID, drawable_ID))
values[0].data.d_status = STATUS_SUCCESS;
else
values[0].data.d_status = STATUS_EXECUTION_ERROR;
}
}
}
static guint
save_uchar_n (FILE *fp,
guint c,
guint8 d)
{
if (c > 74)
{
fprintf (fp, "\n ");
c = 3;
}
fprintf (fp, " %u,", d);
c += 1 + (d > 99) + (d > 9) + 1 + 1;
return c;
}
static guint
save_uchar_s (FILE *fp,
guint c,
guint8 d)
{
static guint8 pad = 0;
if (c > 74)
{
fprintf (fp, "\"\n \"");
c = 3;
}
if (d < 33 || d > 126)
{
fprintf (fp, "\\%o", d);
c += 1 + 1 + (d > 7) + (d > 63);
pad = d < 64;
return c;
}
if (d == '\\')
{
fputs ("\\\\", fp);
c += 2;
}
else if (d == '"')
{
fputs ("\\\"", fp);
c += 2;
}
else if (pad && d >= '0' && d <= '9')
{
fputs ("\"\"", fp);
fputc (d, fp);
c += 3;
}
else
{
fputc (d, fp);
c += 1;
}
pad = 0;
return c;
}
static gint
save_image (Config *config,
gint32 image_ID,
gint32 drawable_ID)
{
GDrawable *drawable = gimp_drawable_get (drawable_ID);
GDrawableType drawable_type = gimp_drawable_type (drawable_ID);
GPixelRgn pixel_rgn;
gchar *s_uint_8, *s_uint_32, *s_int, *s_uint, *s_char, *s_null;
FILE *fp;
guint c;
guint (*save_uchar) (FILE*, guint, guint8);
fp = fopen (config->file_name, "w");
if (!fp)
return FALSE;
gimp_pixel_rgn_init (&pixel_rgn, drawable, 0, 0, drawable->width, drawable->height, FALSE, FALSE);
if (config->stringify)
save_uchar = save_uchar_s;
else
save_uchar = save_uchar_n;
if (config->glib_types)
{
s_uint_8 = "guint8 ";
s_uint_32 = "guint32";
s_uint = "guint ";
s_int = "gint ";
s_char = "gchar ";
s_null = "NULL";
}
else
{
s_uint_8 = "unsigned char";
s_uint_32 = "unsigned int ";
s_uint = "unsigned int ";
s_int = "int ";
s_char = "char ";
s_null = "(char*) 0";
}
fprintf (fp, "/* GIMP %s C-Source image dump (%s) */\n\n",
config->alpha ? "RGBA" : "RGB",
config->file_name);
fprintf (fp, "static const struct {\n");
fprintf (fp, " %s\t width;\n", s_uint);
fprintf (fp, " %s\t height;\n", s_uint);
fprintf (fp, " %s\t bytes_per_pixel; /* 3:RGB, 4:RGBA */ \n", s_uint);
if (config->use_comment)
fprintf (fp, " %s\t*comment;\n", s_char);
fprintf (fp, " %s\t pixel_data[%u * %u * %u];\n",
s_uint_8,
drawable->width,
drawable->height,
config->alpha ? 4 : 3);
fprintf (fp, "} %s = {\n", config->prefixed_name);
fprintf (fp, " %u, %u, %u,\n",
drawable->width,
drawable->height,
config->alpha ? 4 : 3);
if (config->use_comment && !config->comment)
fprintf (fp, " %s,\n", s_null);
else if (config->use_comment)
{
gchar *p = config->comment - 1;
fprintf (fp, " \"");
while (*(++p))
if (*p == '\\')
fprintf (fp, "\\\\");
else if (*p == '"')
fprintf (fp, "\\\"");
else if (*p == '\n' && p[1])
fprintf (fp, "\\n\"\n \"");
else if (*p == '\n')
fprintf (fp, "\\n");
else if (*p == '\r')
fprintf (fp, "\\r");
else if (*p == '\b')
fprintf (fp, "\\b");
else if (*p == '\f')
fprintf (fp, "\\f");
else if (*p >= 32 && *p <= 126)
fprintf (fp, "%c", *p);
else
fprintf (fp, "\\%03o", *p);
fprintf (fp, "\",\n");
}
if (config->stringify)
fprintf (fp, " \"");
else
fprintf (fp, " {");
c = 3;
switch (drawable_type)
{
guint8 *data;
gint x, y;
case RGB_IMAGE:
case RGBA_IMAGE:
data = g_new (guint8, drawable->width * drawable->bpp);
for (y = 0; y < drawable->height; y++)
{
gimp_pixel_rgn_get_row (&pixel_rgn, data, 0, y, drawable->width);
for (x = 0; x < drawable->width; x++)
{
guint8 *d = data + x * drawable->bpp;
c = save_uchar (fp, c, d[0]);
c = save_uchar (fp, c, d[1]);
c = save_uchar (fp, c, d[2]);
if (config->alpha)
{
gdouble alpha = drawable_type == RGBA_IMAGE ? d[3] : 0xff;
alpha *= config->opacity / 100.0;
c = save_uchar (fp, c, alpha + 0.5);
}
}
}
g_free (data);
break;
default:
g_warning ("unhandled drawable type (%d)", drawable_type);
return FALSE;
}
if (config->stringify)
fprintf (fp, "\",\n};\n\n");
else
fprintf (fp, "\n },\n};\n\n");
fclose (fp);
gimp_drawable_detach (drawable);
return TRUE;
}
static void
cb_set_true (gboolean *bool_p)
{
*bool_p = TRUE;
}
static gboolean
run_save_dialog (Config *config)
{
GtkWidget *dialog, *vbox, *hbox;
GtkWidget *prefixed_name, *centry, *alpha, *gtype, *use_comment, *any;
GtkObject *opacity;
gboolean do_save = FALSE;
gtk_init (NULL, NULL);
g_set_prgname ("Save");
gtk_rc_parse (gimp_gtkrc ());
dialog = gtk_widget_new (GTK_TYPE_DIALOG,
"title", "Save as C-Source",
"window_position", GTK_WIN_POS_MOUSE,
"signal::destroy", gtk_main_quit, NULL,
NULL);
vbox = GTK_DIALOG (dialog)->vbox;
gtk_widget_set (vbox,
"border_width", 5,
"spacing", 5,
NULL);
hbox = GTK_DIALOG (dialog)->action_area;
gtk_widget_new (GTK_TYPE_BUTTON,
"visible", TRUE,
"label", "Ok",
"object_signal::clicked", cb_set_true, &do_save,
"object_signal::clicked", gtk_widget_destroy, dialog,
"parent", hbox,
"can_default", TRUE,
"has_default", TRUE,
NULL);
gtk_widget_new (GTK_TYPE_BUTTON,
"visible", TRUE,
"label", "Cancel",
"object_signal::clicked", gtk_widget_destroy, dialog,
"parent", hbox,
"can_default", TRUE,
NULL);
/* Prefixed Name
*/
hbox = gtk_widget_new (GTK_TYPE_HBOX,
"visible", TRUE,
"parent", vbox,
NULL);
gtk_widget_new (GTK_TYPE_LABEL,
"label", "Prefixed Name: ",
"xalign", 0.0,
"visible", TRUE,
"parent", hbox,
NULL);
prefixed_name = gtk_widget_new (GTK_TYPE_ENTRY,
"visible", TRUE,
"parent", hbox,
NULL);
gtk_entry_set_text (GTK_ENTRY (prefixed_name),
config->prefixed_name ? config->prefixed_name : "");
gtk_widget_ref (prefixed_name);
/* Comment Entry
*/
hbox = gtk_widget_new (GTK_TYPE_HBOX,
"visible", TRUE,
"parent", vbox,
NULL);
gtk_widget_new (GTK_TYPE_LABEL,
"label", "Comment: ",
"xalign", 0.0,
"visible", TRUE,
"parent", hbox,
NULL);
centry = gtk_widget_new (GTK_TYPE_ENTRY,
"visible", TRUE,
"parent", hbox,
NULL);
gtk_entry_set_text (GTK_ENTRY (centry),
config->comment ? config->comment : "");
gtk_widget_ref (centry);
/* Use Comment
*/
hbox = gtk_widget_new (GTK_TYPE_HBOX,
"visible", TRUE,
"parent", vbox,
NULL);
use_comment = gtk_widget_new (GTK_TYPE_CHECK_BUTTON,
"label", "Save comment to file?",
"visible", TRUE,
"parent", hbox,
NULL);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (use_comment), config->use_comment);
gtk_widget_ref (use_comment);
/* GLib types
*/
hbox = gtk_widget_new (GTK_TYPE_HBOX,
"visible", TRUE,
"parent", vbox,
NULL);
gtype = gtk_widget_new (GTK_TYPE_CHECK_BUTTON,
"label", "Use GLib types (guint8*)",
"visible", TRUE,
"parent", hbox,
NULL);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (gtype), config->glib_types);
gtk_widget_ref (gtype);
/* Alpha
*/
hbox = gtk_widget_new (GTK_TYPE_HBOX,
"visible", TRUE,
"parent", vbox,
NULL);
alpha = gtk_widget_new (GTK_TYPE_CHECK_BUTTON,
"label", "Save RGBA instead of RGB",
"visible", TRUE,
"parent", hbox,
NULL);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (alpha), config->alpha);
gtk_widget_ref (alpha);
/* Max Alpha Value
*/
hbox = gtk_widget_new (GTK_TYPE_HBOX,
"visible", TRUE,
"parent", vbox,
NULL);
gtk_widget_new (GTK_TYPE_LABEL,
"label", "Opacity: ",
"xalign", 0.0,
"visible", TRUE,
"parent", hbox,
NULL);
opacity = gtk_adjustment_new (config->opacity,
0,
100,
0.1,
5.0,
0);
any = gtk_spin_button_new (GTK_ADJUSTMENT (opacity), 0, 1);
gtk_widget_set (any,
"visible", TRUE,
"parent", hbox,
NULL);
gtk_object_ref (opacity);
gtk_widget_show (dialog);
gtk_main ();
config->prefixed_name = g_strdup (gtk_entry_get_text (GTK_ENTRY (prefixed_name)));
config->alpha = GTK_TOGGLE_BUTTON (alpha)->active;
config->glib_types = GTK_TOGGLE_BUTTON (gtype)->active;
config->comment = g_strdup (gtk_entry_get_text (GTK_ENTRY (centry)));
config->use_comment = GTK_TOGGLE_BUTTON (use_comment)->active;
config->opacity = GTK_ADJUSTMENT (opacity)->value;
gtk_widget_unref (gtype);
gtk_widget_unref (centry);
gtk_widget_unref (alpha);
gtk_widget_unref (use_comment);
gtk_widget_unref (prefixed_name);
gtk_object_unref (opacity);
if (!config->prefixed_name || !config->prefixed_name[0])
config->prefixed_name = "tmp";
if (config->comment && !config->comment[0])
config->comment = NULL;
return do_save;
}
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