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gimp/plug-ins/sgi/sgi.c

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/*
* SGI image file plug-in for the GIMP.
*
* Copyright 1997-1998 Michael Sweet (mike@easysw.com)
*
* 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 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.
*
* Contents:
*
* main() - Main entry - just call gimp_main()...
* query() - Respond to a plug-in query...
* run() - Run the plug-in...
* load_image() - Load a PNG image into a new image window.
* save_image() - Save the specified image to a PNG file.
* save_ok_callback() - Destroy the save dialog and save the image.
* save_dialog() - Pop up the save dialog.
*
*/
#include "config.h"
#include <string.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "sgi.h" /* SGI image library definitions */
#include "libgimp/stdplugins-intl.h"
/*
* Constants...
*/
#define PLUG_IN_VERSION "1.1.1 - 17 May 1998"
/*
* Local functions...
*/
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static gint32 load_image (const gchar *filename);
static gint save_image (const gchar *filename,
gint32 image_ID,
gint32 drawable_ID);
static gboolean save_dialog (void);
/*
* Globals...
*/
GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
static gint compression = SGI_COMP_RLE;
MAIN ()
static void
query (void)
{
static GimpParamDef load_args[] =
{
{ GIMP_PDB_INT32, "run_mode", "Interactive, non-interactive" },
{ GIMP_PDB_STRING, "filename", "The name of the file to load" },
{ GIMP_PDB_STRING, "raw_filename", "The name of the file to load" },
};
static GimpParamDef load_return_vals[] =
{
{ GIMP_PDB_IMAGE, "image", "Output image" },
};
static GimpParamDef save_args[] =
{
{ GIMP_PDB_INT32, "run_mode", "Interactive, non-interactive" },
{ 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 of the file to save the image in" },
{ GIMP_PDB_INT32, "compression", "Compression level (0 = none, 1 = RLE, 2 = ARLE)" }
};
gimp_install_procedure ("file_sgi_load",
"Loads files in SGI image file format",
"This plug-in loads SGI image files.",
"Michael Sweet <mike@easysw.com>",
"Copyright 1997-1998 by Michael Sweet",
PLUG_IN_VERSION,
N_("Silicon Graphics IRIS image"),
NULL,
GIMP_PLUGIN,
G_N_ELEMENTS (load_args),
G_N_ELEMENTS (load_return_vals),
load_args,
load_return_vals);
gimp_register_file_handler_mime ("file_sgi_load", "image/x-sgi");
gimp_register_magic_load_handler ("file_sgi_load",
"sgi,rgb,bw,icon",
"",
"0,short,474");
gimp_install_procedure ("file_sgi_save",
"Saves files in SGI image file format",
"This plug-in saves SGI image files.",
"Michael Sweet <mike@easysw.com>",
"Copyright 1997-1998 by Michael Sweet",
PLUG_IN_VERSION,
N_("Silicon Graphics IRIS image"),
"RGB*,GRAY*",
GIMP_PLUGIN,
G_N_ELEMENTS (save_args),
0,
save_args,
NULL);
gimp_register_file_handler_mime ("file_sgi_save", "image/x-sgi");
gimp_register_save_handler ("file_sgi_save", "sgi,rgb,bw,icon", "");
}
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;
gint32 image_ID;
gint32 drawable_ID;
GimpExportReturn export = GIMP_EXPORT_CANCEL;
run_mode = param[0].data.d_int32;
*nreturn_vals = 1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;
INIT_I18N ();
if (strcmp (name, "file_sgi_load") == 0)
{
image_ID = load_image (param[1].data.d_string);
if (image_ID != -1)
{
*nreturn_vals = 2;
values[1].type = GIMP_PDB_IMAGE;
values[1].data.d_image = image_ID;
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
}
else if (strcmp (name, "file_sgi_save") == 0)
{
image_ID = param[1].data.d_int32;
drawable_ID = param[2].data.d_int32;
/* eventually export the image */
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
case GIMP_RUN_WITH_LAST_VALS:
gimp_ui_init ("sgi", FALSE);
export = gimp_export_image (&image_ID, &drawable_ID, "SGI",
(GIMP_EXPORT_CAN_HANDLE_RGB |
GIMP_EXPORT_CAN_HANDLE_GRAY |
GIMP_EXPORT_CAN_HANDLE_ALPHA));
if (export == GIMP_EXPORT_CANCEL)
{
values[0].data.d_status = GIMP_PDB_CANCEL;
return;
}
break;
default:
break;
}
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
/*
* Possibly retrieve data...
*/
gimp_get_data ("file_sgi_save", &compression);
/*
* Then acquire information with a dialog...
*/
if (!save_dialog ())
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
{
compression = param[5].data.d_int32;
if (compression < 0 || compression > 2)
status = GIMP_PDB_CALLING_ERROR;
};
break;
case GIMP_RUN_WITH_LAST_VALS:
/*
* Possibly retrieve data...
*/
gimp_get_data ("file_sgi_save", &compression);
break;
default:
break;
};
if (status == GIMP_PDB_SUCCESS)
{
if (save_image (param[3].data.d_string, image_ID, drawable_ID))
{
gimp_set_data ("file_sgi_save",
&compression, sizeof (compression));
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
}
if (export == GIMP_EXPORT_EXPORT)
gimp_image_delete (image_ID);
}
else
{
status = GIMP_PDB_CALLING_ERROR;
}
values[0].data.d_status = status;
}
/*
* 'load_image()' - Load a PNG image into a new image window.
*/
static gint32
load_image (const gchar *filename) /* I - File to load */
{
int i, /* Looping var */
x, /* Current X coordinate */
y, /* Current Y coordinate */
image_type, /* Type of image */
layer_type, /* Type of drawable/layer */
tile_height, /* Height of tile in GIMP */
count, /* Count of rows to put in image */
bytes; /* Number of channels to use */
sgi_t *sgip; /* File pointer */
gint32 image, /* Image */
layer; /* Layer */
GimpDrawable *drawable; /* Drawable for layer */
GimpPixelRgn pixel_rgn; /* Pixel region for layer */
guchar **pixels, /* Pixel rows */
*pixel, /* Pixel data */
*pptr; /* Current pixel */
gushort **rows; /* SGI image data */
/*
* Open the file for reading...
*/
sgip = sgiOpen ((char *) filename, SGI_READ, 0, 0, 0, 0, 0);
if (sgip == NULL)
{
g_message (_("Could not open '%s' for reading."),
gimp_filename_to_utf8 (filename));
return -1;
};
gimp_progress_init (NULL);
gimp_progress_set_text (_("Opening '%s'..."),
gimp_filename_to_utf8 (filename));
/*
* Get the image dimensions and create the image...
*/
bytes = sgip->zsize;
switch (sgip->zsize)
{
case 1 : /* Grayscale */
image_type = GIMP_GRAY;
layer_type = GIMP_GRAY_IMAGE;
break;
case 2 : /* Grayscale + alpha */
image_type = GIMP_GRAY;
layer_type = GIMP_GRAYA_IMAGE;
break;
case 3 : /* RGB */
image_type = GIMP_RGB;
layer_type = GIMP_RGB_IMAGE;
break;
case 4 : /* RGBA */
image_type = GIMP_RGB;
layer_type = GIMP_RGBA_IMAGE;
break;
default:
image_type = GIMP_RGB;
layer_type = GIMP_RGBA_IMAGE;
bytes = 4;
break;
}
image = gimp_image_new (sgip->xsize, sgip->ysize, image_type);
if (image == -1)
{
g_message ("Could not allocate new image");
return -1;
}
gimp_image_set_filename (image, filename);
/*
* Create the "background" layer to hold the image...
*/
layer = gimp_layer_new (image, _("Background"), sgip->xsize, sgip->ysize,
layer_type, 100, GIMP_NORMAL_MODE);
gimp_image_add_layer (image, layer, 0);
/*
* Get the drawable and set the pixel region for our load...
*/
drawable = gimp_drawable_get (layer);
gimp_pixel_rgn_init (&pixel_rgn, drawable, 0, 0, drawable->width,
drawable->height, TRUE, FALSE);
/*
* Temporary buffers...
*/
tile_height = gimp_tile_height ();
pixel = g_new (guchar, tile_height * sgip->xsize * bytes);
pixels = g_new (guchar *, tile_height);
for (i = 0; i < tile_height; i ++)
pixels[i] = pixel + sgip->xsize * bytes * i;
rows = g_new (unsigned short *, sgip->zsize);
rows[0] = g_new (unsigned short, sgip->xsize * sgip->zsize);
for (i = 1; i < sgip->zsize; i ++)
rows[i] = rows[0] + i * sgip->xsize;
/*
* Load the image...
*/
for (y = 0, count = 0;
y < sgip->ysize;
y ++, count ++)
{
if (count >= tile_height)
{
gimp_pixel_rgn_set_rect (&pixel_rgn, pixel,
0, y - count, drawable->width, count);
count = 0;
gimp_progress_update ((double) y / (double) sgip->ysize);
}
for (i = 0; i < sgip->zsize; i ++)
if (sgiGetRow (sgip, rows[i], sgip->ysize - 1 - y, i) < 0)
printf("sgiGetRow(sgip, rows[i], %d, %d) failed!\n",
sgip->ysize - 1 - y, i);
if (sgip->bpp == 1)
{
/*
* 8-bit (unsigned) pixels...
*/
for (x = 0, pptr = pixels[count]; x < sgip->xsize; x ++)
for (i = 0; i < bytes; i ++, pptr ++)
*pptr = rows[i][x];
}
else
{
/*
* 16-bit (unsigned) pixels...
*/
for (x = 0, pptr = pixels[count]; x < sgip->xsize; x ++)
for (i = 0; i < bytes; i ++, pptr ++)
*pptr = rows[i][x] >> 8;
}
}
/*
* Do the last n rows (count always > 0)
*/
gimp_pixel_rgn_set_rect (&pixel_rgn, pixel, 0,
y - count, drawable->width, count);
/*
* Done with the file...
*/
sgiClose (sgip);
g_free (pixel);
g_free (pixels);
g_free (rows[0]);
g_free (rows);
/*
* Update the display...
*/
gimp_drawable_flush (drawable);
gimp_drawable_detach (drawable);
return image;
}
/*
* 'save_image()' - Save the specified image to a SGI file.
*/
static gint
save_image (const gchar *filename,
gint32 image_ID,
gint32 drawable_ID)
{
gint i, j, /* Looping var */
x, /* Current X coordinate */
y, /* Current Y coordinate */
tile_height, /* Height of tile in GIMP */
count, /* Count of rows to put in image */
zsize; /* Number of channels in file */
sgi_t *sgip; /* File pointer */
GimpDrawable *drawable; /* Drawable for layer */
GimpPixelRgn pixel_rgn; /* Pixel region for layer */
guchar **pixels, /* Pixel rows */
*pixel, /* Pixel data */
*pptr; /* Current pixel */
gushort **rows; /* SGI image data */
/*
* Get the drawable for the current image...
*/
drawable = gimp_drawable_get (drawable_ID);
gimp_pixel_rgn_init (&pixel_rgn, drawable, 0, 0, drawable->width,
drawable->height, FALSE, FALSE);
zsize = 0;
switch (gimp_drawable_type (drawable_ID))
{
case GIMP_GRAY_IMAGE :
zsize = 1;
break;
case GIMP_GRAYA_IMAGE :
zsize = 2;
break;
case GIMP_RGB_IMAGE :
zsize = 3;
break;
case GIMP_RGBA_IMAGE :
zsize = 4;
break;
default:
g_message (_("Cannot operate on indexed color images."));
return FALSE;
}
/*
* Open the file for writing...
*/
sgip = sgiOpen ((char *) filename, SGI_WRITE, compression, 1,
drawable->width, drawable->height, zsize);
if (sgip == NULL)
{
g_message (_("Could not open '%s' for writing."),
gimp_filename_to_utf8 (filename));
return FALSE;
};
gimp_progress_init (NULL);
gimp_progress_set_text (_("Saving '%s'..."),
gimp_filename_to_utf8 (filename));
/*
* Allocate memory for "tile_height" rows...
*/
tile_height = gimp_tile_height ();
pixel = g_new (guchar, tile_height * drawable->width * zsize);
pixels = g_new (guchar *, tile_height);
for (i = 0; i < tile_height; i ++)
pixels[i]= pixel + drawable->width * zsize * i;
rows = g_new (gushort *, sgip->zsize);
rows[0] = g_new (gushort, sgip->xsize * sgip->zsize);
for (i = 1; i < sgip->zsize; i ++)
rows[i] = rows[0] + i * sgip->xsize;
/*
* Save the image...
*/
for (y = 0; y < drawable->height; y += count)
{
/*
* Grab more pixel data...
*/
if ((y + tile_height) >= drawable->height)
count = drawable->height - y;
else
count = tile_height;
gimp_pixel_rgn_get_rect (&pixel_rgn, pixel, 0, y, drawable->width, count);
/*
* Convert to shorts and write each color plane separately...
*/
for (i = 0, pptr = pixels[0]; i < count; i ++)
{
for (x = 0; x < drawable->width; x ++)
for (j = 0; j < zsize; j ++, pptr ++)
rows[j][x] = *pptr;
for (j = 0; j < zsize; j ++)
sgiPutRow (sgip, rows[j], drawable->height - 1 - y - i, j);
};
gimp_progress_update ((double) y / (double) drawable->height);
};
/*
* Done with the file...
*/
sgiClose (sgip);
g_free (pixel);
g_free (pixels);
g_free (rows[0]);
g_free (rows);
return TRUE;
}
static gboolean
save_dialog (void)
{
GtkWidget *dlg;
GtkWidget *frame;
gboolean run;
dlg = gimp_dialog_new (_("Save as SGI"), "sgi",
NULL, 0,
gimp_standard_help_func, "file-sgi-save",
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dlg),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
frame = gimp_int_radio_group_new (TRUE, _("Compression type"),
G_CALLBACK (gimp_radio_button_update),
&compression, compression,
_("No compression"),
SGI_COMP_NONE, NULL,
_("RLE compression"),
SGI_COMP_RLE, NULL,
_("Aggressive RLE\n(not supported by SGI)"),
SGI_COMP_ARLE, NULL,
NULL);
gtk_container_set_border_width (GTK_CONTAINER (frame), 12);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
gtk_widget_show (dlg);
run = (gimp_dialog_run (GIMP_DIALOG (dlg)) == GTK_RESPONSE_OK);
gtk_widget_destroy (dlg);
return run;
}
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