mirror of https://github.com/GNOME/gimp.git
1783 lines
47 KiB
C
1783 lines
47 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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* SUN raster reading and writing code Copyright (C) 1996 Peter Kirchgessner
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* (email: peter@kirchgessner.net, WWW: http://www.kirchgessner.net)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/* This program was written using pages 625-629 of the book
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* "Encyclopedia of Graphics File Formats", Murray/van Ryper,
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* O'Reilly & Associates Inc.
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* Bug reports or suggestions should be e-mailed to peter@kirchgessner.net
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*/
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/* Event history:
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* V 1.00, PK, 25-Jul-96: First try
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* V 1.90, PK, 15-Mar-97: Upgrade to work with GIMP V0.99
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* V 1.91, PK, 05-Apr-97: Return all arguments, even in case of an error
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* V 1.92, PK, 18-May-97: Ignore EOF-error on reading image data
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* V 1.93, PK, 05-Oct-97: Parse rc file
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* V 1.94, PK, 12-Oct-97: No progress bars for non-interactive mode
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* V 1.95, nn, 20-Dec-97: Initialize some variable
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* V 1.96, PK, 21-Nov-99: Internationalization
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* V 1.97, PK, 20-Dec-00: Recognize extensions .rs and .ras too
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*/
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#include "config.h"
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#include <errno.h>
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#include <string.h>
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#include <glib/gstdio.h>
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#include <libgimp/gimp.h>
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#include <libgimp/gimpui.h>
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#include "libgimp/stdplugins-intl.h"
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#define LOAD_PROC "file-sunras-load"
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#define SAVE_PROC "file-sunras-save"
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#define PLUG_IN_BINARY "file-sunras"
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#define PLUG_IN_ROLE "gimp-file-sunras"
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typedef int WRITE_FUN(void*,size_t,size_t,FILE*);
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typedef gulong L_CARD32;
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typedef gushort L_CARD16;
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typedef guchar L_CARD8;
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/* Fileheader of SunRaster files */
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typedef struct
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{
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L_CARD32 l_ras_magic; /* Magic Number */
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L_CARD32 l_ras_width; /* Width */
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L_CARD32 l_ras_height; /* Height */
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L_CARD32 l_ras_depth; /* Number of bits per pixel (1,8,24,32) */
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L_CARD32 l_ras_length; /* Length of image data (but may also be 0) */
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L_CARD32 l_ras_type; /* Encoding */
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L_CARD32 l_ras_maptype; /* Type of colormap */
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L_CARD32 l_ras_maplength;/* Number of bytes for colormap */
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} L_SUNFILEHEADER;
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/* Sun-raster magic */
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#define RAS_MAGIC 0x59a66a95
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#define RAS_TYPE_STD 1 /* Standard uncompressed format */
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#define RAS_TYPE_RLE 2 /* Runlength compression format */
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typedef struct
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{
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gint val; /* The value that is to be repeated */
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gint n; /* How many times it is repeated */
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} RLEBUF;
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/* Declare some local functions.
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*/
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static void query (void);
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static void run (const gchar *name,
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gint nparams,
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const GimpParam *param,
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gint *nreturn_vals,
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GimpParam **return_vals);
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static gint32 load_image (const gchar *filename,
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GError **error);
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static gboolean save_image (const gchar *filename,
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gint32 image_ID,
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gint32 drawable_ID,
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GError **error);
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static void set_color_table (gint32 image_ID,
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L_SUNFILEHEADER *sunhdr,
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const guchar *suncolmap);
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static gint32 create_new_image (const gchar *filename,
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guint width,
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guint height,
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GimpImageBaseType type,
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gint32 *layer_ID,
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GeglBuffer **buffer);
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static gint32 load_sun_d1 (const gchar *filename,
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FILE *ifp,
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L_SUNFILEHEADER *sunhdr,
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guchar *suncolmap);
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static gint32 load_sun_d8 (const gchar *filename,
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FILE *ifp,
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L_SUNFILEHEADER *sunhdr,
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guchar *suncolmap);
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static gint32 load_sun_d24 (const gchar *filename,
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FILE *ifp,
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L_SUNFILEHEADER *sunhdr,
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guchar *suncolmap);
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static gint32 load_sun_d32 (const gchar *filename,
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FILE *ifp,
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L_SUNFILEHEADER *sunhdr,
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guchar *suncolmap);
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static L_CARD32 read_card32 (FILE *ifp,
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int *err);
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static void write_card32 (FILE *ofp,
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L_CARD32 c);
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static void byte2bit (guchar *byteline,
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int width,
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guchar *bitline,
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gboolean invert);
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static void rle_startread (FILE *ifp);
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static int rle_fread (char *ptr,
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int sz,
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int nelem,
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FILE *ifp);
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static int rle_fgetc (FILE *ifp);
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#define rle_getc(fp) ((rlebuf.n > 0) ? (rlebuf.n)--,rlebuf.val : rle_fgetc (fp))
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static void rle_startwrite (FILE *ofp);
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static int rle_fwrite (char *ptr,
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int sz,
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int nelem,
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FILE *ofp);
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static int rle_fputc (int val,
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FILE *ofp);
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static int rle_putrun (int n,
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int val,
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FILE *ofp);
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static void rle_endwrite (FILE *ofp);
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#define rle_putc rle_fputc
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static void read_sun_header (FILE *ifp,
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L_SUNFILEHEADER *sunhdr);
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static void write_sun_header (FILE *ofp,
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L_SUNFILEHEADER *sunhdr);
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static void read_sun_cols (FILE *ifp,
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L_SUNFILEHEADER *sunhdr,
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guchar *colormap);
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static void write_sun_cols (FILE *ofp,
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L_SUNFILEHEADER *sunhdr,
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guchar *colormap);
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static gint save_index (FILE *ofp,
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gint32 image_ID,
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gint32 drawable_ID,
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gboolean grey,
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gboolean rle);
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static gint save_rgb (FILE *ofp,
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gint32 image_ID,
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gint32 drawable_ID,
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gboolean rle);
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static gboolean save_dialog (void);
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/* Portability kludge */
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static int my_fwrite (void *ptr,
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int size,
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int nmemb,
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FILE *stream);
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static int read_msb_first = 1;
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static RLEBUF rlebuf;
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const GimpPlugInInfo PLUG_IN_INFO =
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{
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NULL, /* init_proc */
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NULL, /* quit_proc */
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query, /* query_proc */
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run, /* run_proc */
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};
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/* Save info */
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typedef struct
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{
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gboolean rle; /* rle or standard */
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} SUNRASSaveVals;
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static SUNRASSaveVals psvals =
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{
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TRUE /* rle */
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};
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MAIN ()
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static void
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query (void)
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{
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static const GimpParamDef load_args[] =
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{
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{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
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{ GIMP_PDB_STRING, "filename", "The name of the file to load" },
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{ GIMP_PDB_STRING, "raw-filename", "The name of the file to load" }
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};
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static const GimpParamDef load_return_vals[] =
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{
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{ GIMP_PDB_IMAGE, "image", "Output image" }
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};
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static const GimpParamDef save_args[] =
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{
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{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
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{ GIMP_PDB_IMAGE, "image", "Input image" },
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{ GIMP_PDB_DRAWABLE, "drawable", "Drawable to save" },
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{ GIMP_PDB_STRING, "filename", "The name of the file to save the image in" },
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{ GIMP_PDB_STRING, "raw-filename", "The name of the file to save the image in" },
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{ GIMP_PDB_INT32, "rle", "Specify non-zero for rle output, zero for standard output" }
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};
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gimp_install_procedure (LOAD_PROC,
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"load file of the SunRaster file format",
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"load file of the SunRaster file format",
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"Peter Kirchgessner",
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"Peter Kirchgessner",
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"1996",
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N_("SUN Rasterfile image"),
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NULL,
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GIMP_PLUGIN,
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G_N_ELEMENTS (load_args),
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G_N_ELEMENTS (load_return_vals),
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load_args, load_return_vals);
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gimp_register_file_handler_mime (LOAD_PROC, "image/x-sun-raster");
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gimp_register_magic_load_handler (LOAD_PROC,
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"im1,im8,im24,im32,rs,ras",
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"",
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"0,long,0x59a66a95");
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gimp_install_procedure (SAVE_PROC,
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"save file in the SunRaster file format",
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"SUNRAS saving handles all image types except "
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"those with alpha channels.",
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"Peter Kirchgessner",
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"Peter Kirchgessner",
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"1996",
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N_("SUN Rasterfile image"),
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"RGB, GRAY, INDEXED",
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GIMP_PLUGIN,
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G_N_ELEMENTS (save_args), 0,
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save_args, NULL);
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gimp_register_file_handler_mime (SAVE_PROC, "image/x-sun-raster");
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gimp_register_save_handler (SAVE_PROC,
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"im1,im8,im24,im32,rs,ras", "");
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}
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static void
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run (const gchar *name,
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gint nparams,
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const GimpParam *param,
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gint *nreturn_vals,
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GimpParam **return_vals)
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{
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static GimpParam values[2];
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GimpRunMode run_mode;
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GimpPDBStatusType status = GIMP_PDB_SUCCESS;
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gint32 image_ID;
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gint32 drawable_ID;
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GimpExportReturn export = GIMP_EXPORT_CANCEL;
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GError *error = NULL;
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run_mode = param[0].data.d_int32;
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INIT_I18N ();
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gegl_init (NULL, NULL);
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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 = GIMP_PDB_EXECUTION_ERROR;
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if (strcmp (name, LOAD_PROC) == 0)
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{
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image_ID = load_image (param[1].data.d_string, &error);
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if (image_ID != -1)
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{
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*nreturn_vals = 2;
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values[1].type = GIMP_PDB_IMAGE;
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values[1].data.d_image = image_ID;
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}
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else
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{
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status = GIMP_PDB_EXECUTION_ERROR;
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}
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}
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else if (strcmp (name, SAVE_PROC) == 0)
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{
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image_ID = param[1].data.d_int32;
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drawable_ID = param[2].data.d_int32;
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/* eventually export the image */
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switch (run_mode)
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{
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case GIMP_RUN_INTERACTIVE:
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case GIMP_RUN_WITH_LAST_VALS:
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gimp_ui_init (PLUG_IN_BINARY, FALSE);
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export = gimp_export_image (&image_ID, &drawable_ID, "SUNRAS",
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GIMP_EXPORT_CAN_HANDLE_RGB |
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GIMP_EXPORT_CAN_HANDLE_GRAY |
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GIMP_EXPORT_CAN_HANDLE_INDEXED);
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if (export == GIMP_EXPORT_CANCEL)
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{
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values[0].data.d_status = GIMP_PDB_CANCEL;
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return;
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}
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break;
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default:
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break;
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}
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switch (run_mode)
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{
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case GIMP_RUN_INTERACTIVE:
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/* Possibly retrieve data */
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gimp_get_data (SAVE_PROC, &psvals);
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/* First acquire information with a dialog */
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if (! save_dialog ())
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status = GIMP_PDB_CANCEL;
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break;
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case GIMP_RUN_NONINTERACTIVE:
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/* Make sure all the arguments are there! */
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if (nparams != 6)
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{
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status = GIMP_PDB_CALLING_ERROR;
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}
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else
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{
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psvals.rle = (param[5].data.d_int32) ? TRUE : FALSE;
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}
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break;
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case GIMP_RUN_WITH_LAST_VALS:
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/* Possibly retrieve data */
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gimp_get_data (SAVE_PROC, &psvals);
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break;
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default:
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break;
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}
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if (status == GIMP_PDB_SUCCESS)
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{
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if (save_image (param[3].data.d_string, image_ID, drawable_ID,
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&error))
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{
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/* Store psvals data */
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gimp_set_data (SAVE_PROC, &psvals, sizeof (SUNRASSaveVals));
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}
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else
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{
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status = GIMP_PDB_EXECUTION_ERROR;
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}
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}
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if (export == GIMP_EXPORT_EXPORT)
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gimp_image_delete (image_ID);
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}
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else
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{
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status = GIMP_PDB_CALLING_ERROR;
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}
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if (status != GIMP_PDB_SUCCESS && error)
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{
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*nreturn_vals = 2;
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values[1].type = GIMP_PDB_STRING;
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values[1].data.d_string = error->message;
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}
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values[0].data.d_status = status;
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}
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static gint32
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load_image (const gchar *filename,
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GError **error)
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{
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gint32 image_ID;
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FILE *ifp;
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L_SUNFILEHEADER sunhdr;
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guchar *suncolmap = NULL;
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gimp_progress_init_printf (_("Opening '%s'"),
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gimp_filename_to_utf8 (filename));
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ifp = g_fopen (filename, "rb");
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if (!ifp)
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{
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g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno),
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_("Could not open '%s' for reading: %s"),
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gimp_filename_to_utf8 (filename), g_strerror (errno));
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return -1;
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}
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read_msb_first = 1; /* SUN raster is always most significant byte first */
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read_sun_header (ifp, &sunhdr);
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if (sunhdr.l_ras_magic != RAS_MAGIC)
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{
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g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
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_("Could not open '%s' as SUN-raster-file"),
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gimp_filename_to_utf8 (filename));
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fclose (ifp);
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return -1;
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}
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if ((sunhdr.l_ras_type < 0) || (sunhdr.l_ras_type > 5))
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{
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g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
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"%s",
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_("The type of this SUN-rasterfile is not supported"));
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fclose (ifp);
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return -1;
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}
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if ((sunhdr.l_ras_maplength < 0) || (sunhdr.l_ras_maplength > (256 * 3)))
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{
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g_message ("Map lengths greater than 256 entries are unsupported by GIMP.");
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gimp_quit ();
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}
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/* Is there a RGB colormap ? */
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if ((sunhdr.l_ras_maptype == 1) && (sunhdr.l_ras_maplength > 0))
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{
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suncolmap = g_new (guchar, sunhdr.l_ras_maplength);
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read_sun_cols (ifp, &sunhdr, suncolmap);
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#ifdef DEBUG
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{
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int j, ncols;
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printf ("File %s\n",filename);
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ncols = sunhdr.l_ras_maplength/3;
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for (j=0; j < ncols; j++)
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printf ("Entry 0x%08x: 0x%04x, 0x%04x, 0x%04x\n",
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j,suncolmap[j],suncolmap[j+ncols],suncolmap[j+2*ncols]);
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}
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#endif
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if (sunhdr.l_ras_magic != RAS_MAGIC)
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{
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g_message (_("Could not read color entries from '%s'"),
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gimp_filename_to_utf8 (filename));
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fclose (ifp);
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g_free (suncolmap);
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return -1;
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}
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}
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else if (sunhdr.l_ras_maplength > 0)
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{
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g_message (_("Type of colormap not supported"));
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fseek (ifp, (sizeof (L_SUNFILEHEADER)/sizeof (L_CARD32))
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*4 + sunhdr.l_ras_maplength, SEEK_SET);
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}
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if (sunhdr.l_ras_width <= 0)
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{
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g_message (_("'%s':\nNo image width specified"),
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gimp_filename_to_utf8 (filename));
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fclose (ifp);
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return -1;
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}
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if (sunhdr.l_ras_width > GIMP_MAX_IMAGE_SIZE)
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{
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g_message (_("'%s':\nImage width is larger than GIMP can handle"),
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gimp_filename_to_utf8 (filename));
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fclose (ifp);
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return -1;
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}
|
|
|
|
if (sunhdr.l_ras_height <= 0)
|
|
{
|
|
g_message (_("'%s':\nNo image height specified"),
|
|
gimp_filename_to_utf8 (filename));
|
|
fclose (ifp);
|
|
return -1;
|
|
}
|
|
|
|
if (sunhdr.l_ras_height > GIMP_MAX_IMAGE_SIZE)
|
|
{
|
|
g_message (_("'%s':\nImage height is larger than GIMP can handle"),
|
|
gimp_filename_to_utf8 (filename));
|
|
fclose (ifp);
|
|
return -1;
|
|
}
|
|
|
|
switch (sunhdr.l_ras_depth)
|
|
{
|
|
case 1: /* bitmap */
|
|
image_ID = load_sun_d1 (filename, ifp, &sunhdr, suncolmap);
|
|
break;
|
|
|
|
case 8: /* 256 colors */
|
|
image_ID = load_sun_d8 (filename, ifp, &sunhdr, suncolmap);
|
|
break;
|
|
|
|
case 24: /* True color */
|
|
image_ID = load_sun_d24 (filename, ifp, &sunhdr, suncolmap);
|
|
break;
|
|
|
|
case 32: /* True color with extra byte */
|
|
image_ID = load_sun_d32 (filename, ifp, &sunhdr, suncolmap);
|
|
break;
|
|
|
|
default:
|
|
image_ID = -1;
|
|
break;
|
|
}
|
|
gimp_progress_update (1.0);
|
|
|
|
fclose (ifp);
|
|
|
|
g_free (suncolmap);
|
|
|
|
if (image_ID == -1)
|
|
{
|
|
g_message (_("This image depth is not supported"));
|
|
return -1;
|
|
}
|
|
|
|
return image_ID;
|
|
}
|
|
|
|
|
|
static gboolean
|
|
save_image (const gchar *filename,
|
|
gint32 image_ID,
|
|
gint32 drawable_ID,
|
|
GError **error)
|
|
{
|
|
FILE *ofp;
|
|
GimpImageType drawable_type;
|
|
gboolean retval;
|
|
|
|
drawable_type = gimp_drawable_type (drawable_ID);
|
|
|
|
/* Make sure we're not saving an image with an alpha channel */
|
|
if (gimp_drawable_has_alpha (drawable_ID))
|
|
{
|
|
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
|
|
_("SUNRAS save cannot handle images with alpha channels"));
|
|
return FALSE;
|
|
}
|
|
|
|
switch (drawable_type)
|
|
{
|
|
case GIMP_INDEXED_IMAGE:
|
|
case GIMP_GRAY_IMAGE:
|
|
case GIMP_RGB_IMAGE:
|
|
break;
|
|
default:
|
|
g_message (_("Can't operate on unknown image types"));
|
|
return FALSE;
|
|
break;
|
|
}
|
|
|
|
gimp_progress_init_printf (_("Saving '%s'"),
|
|
gimp_filename_to_utf8 (filename));
|
|
|
|
/* Open the output file. */
|
|
ofp = g_fopen (filename, "wb");
|
|
if (! ofp)
|
|
{
|
|
g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno),
|
|
_("Could not open '%s' for writing: %s"),
|
|
gimp_filename_to_utf8 (filename), g_strerror (errno));
|
|
return FALSE;
|
|
}
|
|
|
|
if (drawable_type == GIMP_INDEXED_IMAGE)
|
|
retval = save_index (ofp,image_ID, drawable_ID, FALSE, psvals.rle);
|
|
else if (drawable_type == GIMP_GRAY_IMAGE)
|
|
retval = save_index (ofp,image_ID, drawable_ID, TRUE, psvals.rle);
|
|
else if (drawable_type == GIMP_RGB_IMAGE)
|
|
retval = save_rgb (ofp,image_ID, drawable_ID, psvals.rle);
|
|
else
|
|
retval = FALSE;
|
|
|
|
fclose (ofp);
|
|
|
|
return retval;
|
|
}
|
|
|
|
|
|
static L_CARD32
|
|
read_card32 (FILE *ifp,
|
|
gint *err)
|
|
{
|
|
L_CARD32 c;
|
|
|
|
if (read_msb_first)
|
|
{
|
|
c = (((L_CARD32)(getc (ifp))) << 24);
|
|
c |= (((L_CARD32)(getc (ifp))) << 16);
|
|
c |= (((L_CARD32)(getc (ifp))) << 8);
|
|
c |= ((L_CARD32)(*err = getc (ifp)));
|
|
}
|
|
else
|
|
{
|
|
c = ((L_CARD32)(getc (ifp)));
|
|
c |= (((L_CARD32)(getc (ifp))) << 8);
|
|
c |= (((L_CARD32)(getc (ifp))) << 16);
|
|
c |= (((L_CARD32)(*err = getc (ifp))) << 24);
|
|
}
|
|
|
|
*err = (*err < 0);
|
|
|
|
return c;
|
|
}
|
|
|
|
|
|
static void
|
|
write_card32 (FILE *ofp,
|
|
L_CARD32 c)
|
|
{
|
|
putc ((int)((c >> 24) & 0xff), ofp);
|
|
putc ((int)((c >> 16) & 0xff), ofp);
|
|
putc ((int)((c >> 8) & 0xff), ofp);
|
|
putc ((int)((c) & 0xff), ofp);
|
|
}
|
|
|
|
|
|
/* Convert n bytes of 0/1 to a line of bits */
|
|
static void
|
|
byte2bit (guchar *byteline,
|
|
gint width,
|
|
guchar *bitline,
|
|
gboolean invert)
|
|
{
|
|
guchar bitval;
|
|
guchar rest[8];
|
|
|
|
while (width >= 8)
|
|
{
|
|
bitval = 0;
|
|
if (*(byteline++)) bitval |= 0x80;
|
|
if (*(byteline++)) bitval |= 0x40;
|
|
if (*(byteline++)) bitval |= 0x20;
|
|
if (*(byteline++)) bitval |= 0x10;
|
|
if (*(byteline++)) bitval |= 0x08;
|
|
if (*(byteline++)) bitval |= 0x04;
|
|
if (*(byteline++)) bitval |= 0x02;
|
|
if (*(byteline++)) bitval |= 0x01;
|
|
*(bitline++) = invert ? ~bitval : bitval;
|
|
width -= 8;
|
|
}
|
|
if (width > 0)
|
|
{
|
|
memset (rest, 0, 8);
|
|
memcpy (rest, byteline, width);
|
|
bitval = 0;
|
|
byteline = rest;
|
|
if (*(byteline++)) bitval |= 0x80;
|
|
if (*(byteline++)) bitval |= 0x40;
|
|
if (*(byteline++)) bitval |= 0x20;
|
|
if (*(byteline++)) bitval |= 0x10;
|
|
if (*(byteline++)) bitval |= 0x08;
|
|
if (*(byteline++)) bitval |= 0x04;
|
|
if (*(byteline++)) bitval |= 0x02;
|
|
*bitline = invert ? ~bitval : bitval;
|
|
}
|
|
}
|
|
|
|
|
|
/* Start reading Runlength Encoded Data */
|
|
static void
|
|
rle_startread (FILE *ifp)
|
|
{
|
|
/* Clear RLE-buffer */
|
|
rlebuf.val = rlebuf.n = 0;
|
|
}
|
|
|
|
|
|
/* Read uncompressed elements from RLE-stream */
|
|
static gint
|
|
rle_fread (gchar *ptr,
|
|
gint sz,
|
|
gint nelem,
|
|
FILE *ifp)
|
|
{
|
|
int elem_read, cnt, val, err = 0;
|
|
|
|
for (elem_read = 0; elem_read < nelem; elem_read++)
|
|
{
|
|
for (cnt = 0; cnt < sz; cnt++)
|
|
{
|
|
val = rle_getc (ifp);
|
|
|
|
if (val < 0)
|
|
{
|
|
err = 1;
|
|
break;
|
|
}
|
|
|
|
*(ptr++) = (char)val;
|
|
}
|
|
|
|
if (err)
|
|
break;
|
|
}
|
|
|
|
return elem_read;
|
|
}
|
|
|
|
|
|
/* Get one byte of uncompressed data from RLE-stream */
|
|
static gint
|
|
rle_fgetc (FILE *ifp)
|
|
{
|
|
int flag, runcnt, runval;
|
|
|
|
if (rlebuf.n > 0) /* Something in the buffer ? */
|
|
{
|
|
(rlebuf.n)--;
|
|
return rlebuf.val;
|
|
}
|
|
|
|
/* Nothing in the buffer. We have to read something */
|
|
if ((flag = getc (ifp)) < 0) return -1;
|
|
if (flag != 0x0080) return flag; /* Single byte run ? */
|
|
|
|
if ((runcnt = getc (ifp)) < 0) return -1;
|
|
if (runcnt == 0) return 0x0080; /* Single 0x80 ? */
|
|
|
|
/* The run */
|
|
if ((runval = getc (ifp)) < 0) return -1;
|
|
rlebuf.n = runcnt;
|
|
rlebuf.val = runval;
|
|
|
|
return runval;
|
|
}
|
|
|
|
|
|
/* Start writing Runlength Encoded Data */
|
|
static void
|
|
rle_startwrite (FILE *ofp)
|
|
{
|
|
/* Clear RLE-buffer */
|
|
rlebuf.val = rlebuf.n = 0;
|
|
}
|
|
|
|
|
|
/* Write uncompressed elements to RLE-stream */
|
|
static gint
|
|
rle_fwrite (gchar *ptr,
|
|
gint sz,
|
|
gint nelem,
|
|
FILE *ofp)
|
|
{
|
|
int elem_write, cnt, val, err = 0;
|
|
guchar *pixels = (unsigned char *)ptr;
|
|
|
|
for (elem_write = 0; elem_write < nelem; elem_write++)
|
|
{
|
|
for (cnt = 0; cnt < sz; cnt++)
|
|
{
|
|
val = rle_fputc (*(pixels++), ofp);
|
|
if (val < 0)
|
|
{
|
|
err = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (err)
|
|
break;
|
|
}
|
|
|
|
return elem_write;
|
|
}
|
|
|
|
|
|
/* Write uncompressed character to RLE-stream */
|
|
static gint
|
|
rle_fputc (gint val,
|
|
FILE *ofp)
|
|
{
|
|
int retval;
|
|
|
|
if (rlebuf.n == 0) /* Nothing in the buffer ? Save the value */
|
|
{
|
|
rlebuf.n = 1;
|
|
rlebuf.val = val;
|
|
|
|
return val;
|
|
}
|
|
|
|
/* Something in the buffer */
|
|
|
|
if (rlebuf.val == val) /* Same value in the buffer ? */
|
|
{
|
|
(rlebuf.n)++;
|
|
if (rlebuf.n == 257) /* Can not be encoded in a single run ? */
|
|
{
|
|
retval = rle_putrun (256, rlebuf.val, ofp);
|
|
if (retval < 0)
|
|
return retval;
|
|
|
|
rlebuf.n -= 256;
|
|
}
|
|
|
|
return val;
|
|
}
|
|
|
|
/* Something different in the buffer ? Write out the run */
|
|
|
|
retval = rle_putrun (rlebuf.n, rlebuf.val, ofp);
|
|
if (retval < 0)
|
|
return retval;
|
|
|
|
/* Save the new value */
|
|
rlebuf.n = 1;
|
|
rlebuf.val = val;
|
|
|
|
return val;
|
|
}
|
|
|
|
|
|
/* Write out a run with 0 < n < 257 */
|
|
static gint
|
|
rle_putrun (gint n,
|
|
gint val,
|
|
FILE *ofp)
|
|
{
|
|
int retval, flag = 0x80;
|
|
|
|
/* Useful to write a 3 byte run ? */
|
|
if ((n > 2) || ((n == 2) && (val == flag)))
|
|
{
|
|
putc (flag, ofp);
|
|
putc (n-1, ofp);
|
|
retval = putc (val, ofp);
|
|
}
|
|
else if (n == 2) /* Write two single runs (could not be value 0x80) */
|
|
{
|
|
putc (val, ofp);
|
|
retval = putc (val, ofp);
|
|
}
|
|
else /* Write a single run */
|
|
{
|
|
if (val == flag)
|
|
retval = putc (flag, ofp), putc (0x00, ofp);
|
|
else
|
|
retval = putc (val, ofp);
|
|
}
|
|
|
|
return (retval < 0) ? retval : val;
|
|
}
|
|
|
|
|
|
/* End writing Runlength Encoded Data */
|
|
static void
|
|
rle_endwrite (FILE *ofp)
|
|
{
|
|
if (rlebuf.n > 0)
|
|
{
|
|
rle_putrun (rlebuf.n, rlebuf.val, ofp);
|
|
rlebuf.val = rlebuf.n = 0; /* Clear RLE-buffer */
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
read_sun_header (FILE *ifp,
|
|
L_SUNFILEHEADER *sunhdr)
|
|
{
|
|
int j, err;
|
|
L_CARD32 *cp;
|
|
|
|
cp = (L_CARD32 *)sunhdr;
|
|
|
|
/* Read in all 32-bit values of the header and check for byte order */
|
|
for (j = 0; j < sizeof (L_SUNFILEHEADER) / sizeof(sunhdr->l_ras_magic); j++)
|
|
{
|
|
*(cp++) = read_card32 (ifp, &err);
|
|
if (err)
|
|
break;
|
|
}
|
|
|
|
if (err)
|
|
sunhdr->l_ras_magic = 0; /* Not a valid SUN-raster file */
|
|
}
|
|
|
|
|
|
/* Write out a SUN-fileheader */
|
|
|
|
static void
|
|
write_sun_header (FILE *ofp,
|
|
L_SUNFILEHEADER *sunhdr)
|
|
{
|
|
int j, hdr_entries;
|
|
L_CARD32 *cp;
|
|
|
|
hdr_entries = sizeof (L_SUNFILEHEADER) / sizeof(sunhdr->l_ras_magic);
|
|
|
|
cp = (L_CARD32 *)sunhdr;
|
|
|
|
/* Write out all 32-bit values of the header and check for byte order */
|
|
for (j = 0; j < hdr_entries; j++)
|
|
{
|
|
write_card32 (ofp, *(cp++));
|
|
}
|
|
}
|
|
|
|
|
|
/* Read the sun colormap */
|
|
|
|
static void
|
|
read_sun_cols (FILE *ifp,
|
|
L_SUNFILEHEADER *sunhdr,
|
|
guchar *colormap)
|
|
{
|
|
int ncols, err = 0;
|
|
|
|
/* Read in SUN-raster Colormap */
|
|
ncols = sunhdr->l_ras_maplength / 3;
|
|
if (ncols <= 0)
|
|
err = 1;
|
|
else
|
|
err = (fread (colormap, 3, ncols, ifp) != ncols);
|
|
|
|
if (err)
|
|
sunhdr->l_ras_magic = 0; /* Not a valid SUN-raster file */
|
|
}
|
|
|
|
|
|
/* Write a sun colormap */
|
|
|
|
static void
|
|
write_sun_cols (FILE *ofp,
|
|
L_SUNFILEHEADER *sunhdr,
|
|
guchar *colormap)
|
|
{
|
|
int ncols;
|
|
|
|
ncols = sunhdr->l_ras_maplength / 3;
|
|
fwrite (colormap, 3, ncols, ofp);
|
|
}
|
|
|
|
|
|
/* Set a GIMP colortable using the sun colormap */
|
|
|
|
static void
|
|
set_color_table (gint32 image_ID,
|
|
L_SUNFILEHEADER *sunhdr,
|
|
const guchar *suncolmap)
|
|
{
|
|
guchar ColorMap[256 * 3];
|
|
gint ncols, j;
|
|
|
|
ncols = sunhdr->l_ras_maplength / 3;
|
|
if (ncols <= 0)
|
|
return;
|
|
|
|
for (j = 0; j < MIN (ncols, 256); j++)
|
|
{
|
|
ColorMap[j * 3 + 0] = suncolmap[j];
|
|
ColorMap[j * 3 + 1] = suncolmap[j + ncols];
|
|
ColorMap[j * 3 + 2] = suncolmap[j + 2 * ncols];
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
printf ("Set GIMP colortable:\n");
|
|
for (j = 0; j < ncols; j++)
|
|
printf ("%3d: 0x%02x 0x%02x 0x%02x\n", j,
|
|
ColorMap[j*3], ColorMap[j*3+1], ColorMap[j*3+2]);
|
|
#endif
|
|
|
|
gimp_image_set_colormap (image_ID, ColorMap, ncols);
|
|
}
|
|
|
|
|
|
/* Create an image. Sets layer_ID, drawable and rgn. Returns image_ID */
|
|
static gint32
|
|
create_new_image (const gchar *filename,
|
|
guint width,
|
|
guint height,
|
|
GimpImageBaseType type,
|
|
gint32 *layer_ID,
|
|
GeglBuffer **buffer)
|
|
{
|
|
gint32 image_ID;
|
|
GimpImageType gdtype;
|
|
|
|
switch (type)
|
|
{
|
|
case GIMP_RGB:
|
|
gdtype = GIMP_RGB_IMAGE;
|
|
break;
|
|
case GIMP_GRAY:
|
|
gdtype = GIMP_GRAY_IMAGE;
|
|
break;
|
|
case GIMP_INDEXED:
|
|
gdtype = GIMP_INDEXED_IMAGE;
|
|
break;
|
|
default:
|
|
g_warning ("Unsupported image type");
|
|
return -1;
|
|
}
|
|
|
|
image_ID = gimp_image_new (width, height, type);
|
|
gimp_image_set_filename (image_ID, filename);
|
|
|
|
*layer_ID = gimp_layer_new (image_ID, _("Background"), width, height,
|
|
gdtype, 100, GIMP_NORMAL_MODE);
|
|
gimp_image_insert_layer (image_ID, *layer_ID, -1, 0);
|
|
|
|
*buffer = gimp_drawable_get_buffer (*layer_ID);
|
|
|
|
return image_ID;
|
|
}
|
|
|
|
|
|
/* Load SUN-raster-file with depth 1 */
|
|
static gint32
|
|
load_sun_d1 (const gchar *filename,
|
|
FILE *ifp,
|
|
L_SUNFILEHEADER *sunhdr,
|
|
guchar *suncolmap)
|
|
{
|
|
int pix8;
|
|
int width, height, linepad, scan_lines, tile_height;
|
|
int i, j;
|
|
guchar *dest, *data;
|
|
gint32 layer_ID, image_ID;
|
|
GeglBuffer *buffer;
|
|
guchar bit2byte[256 * 8];
|
|
L_SUNFILEHEADER sun_bwhdr;
|
|
guchar sun_bwcolmap[6] = { 255,0,255,0,255,0 };
|
|
int err = 0;
|
|
gboolean rle = (sunhdr->l_ras_type == RAS_TYPE_RLE);
|
|
|
|
width = sunhdr->l_ras_width;
|
|
height = sunhdr->l_ras_height;
|
|
|
|
image_ID = create_new_image (filename, width, height, GIMP_INDEXED,
|
|
&layer_ID, &buffer);
|
|
|
|
tile_height = gimp_tile_height ();
|
|
data = g_malloc (tile_height * width);
|
|
|
|
if (suncolmap != NULL) /* Set up the specified color map */
|
|
{
|
|
set_color_table (image_ID, sunhdr, suncolmap);
|
|
}
|
|
else /* No colormap available. Set up a dummy b/w-colormap */
|
|
{ /* Copy the original header and simulate b/w-colormap */
|
|
memcpy ((char *)&sun_bwhdr,(char *)sunhdr,sizeof (L_SUNFILEHEADER));
|
|
sun_bwhdr.l_ras_maptype = 2;
|
|
sun_bwhdr.l_ras_maplength = 6;
|
|
set_color_table (image_ID, &sun_bwhdr, sun_bwcolmap);
|
|
}
|
|
|
|
/* Get an array for mapping 8 bits in a byte to 8 bytes */
|
|
dest = bit2byte;
|
|
for (j = 0; j < 256; j++)
|
|
for (i = 7; i >= 0; i--)
|
|
*(dest++) = ((j & (1 << i)) != 0);
|
|
|
|
linepad = (((sunhdr->l_ras_width+7)/8) % 2); /* Check for 16bit align */
|
|
|
|
if (rle)
|
|
rle_startread (ifp);
|
|
|
|
dest = data;
|
|
scan_lines = 0;
|
|
|
|
for (i = 0; i < height; i++)
|
|
{
|
|
j = width;
|
|
while (j >= 8)
|
|
{
|
|
pix8 = rle ? rle_getc (ifp) : getc (ifp);
|
|
if (pix8 < 0) { err = 1; pix8 = 0; }
|
|
|
|
memcpy (dest, bit2byte + pix8*8, 8);
|
|
dest += 8;
|
|
j -= 8;
|
|
}
|
|
|
|
if (j > 0)
|
|
{
|
|
pix8 = rle ? rle_getc (ifp) : getc (ifp);
|
|
if (pix8 < 0) { err = 1; pix8 = 0; }
|
|
|
|
memcpy (dest, bit2byte + pix8*8, j);
|
|
dest += j;
|
|
}
|
|
|
|
if (linepad)
|
|
err |= ((rle ? rle_getc (ifp) : getc (ifp)) < 0);
|
|
|
|
scan_lines++;
|
|
|
|
if ((i % 20) == 0)
|
|
gimp_progress_update ((double)(i+1) / (double)height);
|
|
|
|
if ((scan_lines == tile_height) || ((i+1) == height))
|
|
{
|
|
gegl_buffer_set (buffer, GEGL_RECTANGLE (0, i - scan_lines + 1,
|
|
width, scan_lines), 0,
|
|
NULL, data, GEGL_AUTO_ROWSTRIDE);
|
|
scan_lines = 0;
|
|
dest = data;
|
|
}
|
|
}
|
|
|
|
g_free (data);
|
|
|
|
if (err)
|
|
g_message (_("EOF encountered on reading"));
|
|
|
|
g_object_unref (buffer);
|
|
|
|
return image_ID;
|
|
}
|
|
|
|
|
|
/* Load SUN-raster-file with depth 8 */
|
|
|
|
static gint32
|
|
load_sun_d8 (const gchar *filename,
|
|
FILE *ifp,
|
|
L_SUNFILEHEADER *sunhdr,
|
|
guchar *suncolmap)
|
|
{
|
|
int width, height, linepad, i, j;
|
|
gboolean grayscale;
|
|
gint ncols;
|
|
int scan_lines, tile_height;
|
|
guchar *dest, *data;
|
|
gint32 layer_ID, image_ID;
|
|
GeglBuffer *buffer;
|
|
int err = 0;
|
|
gboolean rle = (sunhdr->l_ras_type == RAS_TYPE_RLE);
|
|
|
|
width = sunhdr->l_ras_width;
|
|
height = sunhdr->l_ras_height;
|
|
|
|
/* This could also be a grayscale image. Check it */
|
|
ncols = sunhdr->l_ras_maplength / 3;
|
|
|
|
grayscale = TRUE; /* Also grayscale if no colormap present */
|
|
|
|
if ((ncols > 0) && (suncolmap != NULL))
|
|
{
|
|
for (j = 0; j < ncols; j++)
|
|
{
|
|
if ((suncolmap[j] != j) ||
|
|
(suncolmap[j + ncols] != j) ||
|
|
(suncolmap[j + 2 * ncols] != j))
|
|
{
|
|
grayscale = FALSE;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
image_ID = create_new_image (filename, width, height,
|
|
grayscale ? GIMP_GRAY : GIMP_INDEXED,
|
|
&layer_ID, &buffer);
|
|
|
|
tile_height = gimp_tile_height ();
|
|
data = g_malloc (tile_height * width);
|
|
|
|
if (!grayscale)
|
|
set_color_table (image_ID, sunhdr, suncolmap);
|
|
|
|
linepad = (sunhdr->l_ras_width % 2);
|
|
|
|
if (rle)
|
|
rle_startread (ifp); /* Initialize RLE-buffer */
|
|
|
|
dest = data;
|
|
scan_lines = 0;
|
|
|
|
for (i = 0; i < height; i++)
|
|
{
|
|
memset ((char *)dest, 0, width);
|
|
err |= ((rle ? rle_fread ((char *)dest, 1, width, ifp)
|
|
: fread ((char *)dest, 1, width, ifp)) != width);
|
|
|
|
if (linepad)
|
|
err |= ((rle ? rle_getc (ifp) : getc (ifp)) < 0);
|
|
|
|
dest += width;
|
|
scan_lines++;
|
|
|
|
if ((i % 20) == 0)
|
|
gimp_progress_update ((double)(i+1) / (double)height);
|
|
|
|
if ((scan_lines == tile_height) || ((i+1) == height))
|
|
{
|
|
gegl_buffer_set (buffer, GEGL_RECTANGLE (0, i - scan_lines + 1,
|
|
width, scan_lines), 0,
|
|
NULL, data, GEGL_AUTO_ROWSTRIDE);
|
|
scan_lines = 0;
|
|
dest = data;
|
|
}
|
|
}
|
|
|
|
g_free (data);
|
|
|
|
if (err)
|
|
g_message (_("EOF encountered on reading"));
|
|
|
|
g_object_unref (buffer);
|
|
|
|
return image_ID;
|
|
}
|
|
|
|
|
|
/* Load SUN-raster-file with depth 24 */
|
|
static gint32
|
|
load_sun_d24 (const gchar *filename,
|
|
FILE *ifp,
|
|
L_SUNFILEHEADER *sunhdr,
|
|
guchar *suncolmap)
|
|
{
|
|
guchar *dest, blue;
|
|
guchar *data;
|
|
int width, height, linepad, tile_height, scan_lines;
|
|
int i, j;
|
|
gint32 layer_ID, image_ID;
|
|
GeglBuffer *buffer;
|
|
int err = 0;
|
|
gboolean rle = (sunhdr->l_ras_type == RAS_TYPE_RLE);
|
|
|
|
width = sunhdr->l_ras_width;
|
|
height = sunhdr->l_ras_height;
|
|
|
|
image_ID = create_new_image (filename, width, height, GIMP_RGB,
|
|
&layer_ID, &buffer);
|
|
|
|
tile_height = gimp_tile_height ();
|
|
data = g_malloc (tile_height * width * 3);
|
|
|
|
linepad = ((sunhdr->l_ras_width*3) % 2);
|
|
|
|
if (rle)
|
|
rle_startread (ifp); /* Initialize RLE-buffer */
|
|
|
|
dest = data;
|
|
scan_lines = 0;
|
|
|
|
for (i = 0; i < height; i++)
|
|
{
|
|
memset ((char *)dest, 0, 3*width);
|
|
err |= ((rle ? rle_fread ((char *)dest, 3, width, ifp)
|
|
: fread ((char *)dest, 3, width, ifp)) != width);
|
|
|
|
if (linepad)
|
|
err |= ((rle ? rle_getc (ifp) : getc (ifp)) < 0);
|
|
|
|
if (sunhdr->l_ras_type == 3) /* RGB-format ? That is what GIMP wants */
|
|
{
|
|
dest += width * 3;
|
|
}
|
|
else /* We have BGR format. Correct it */
|
|
{
|
|
for (j = 0; j < width; j++)
|
|
{
|
|
blue = *dest;
|
|
*dest = *(dest+2);
|
|
*(dest+2) = blue;
|
|
dest += 3;
|
|
}
|
|
}
|
|
|
|
scan_lines++;
|
|
|
|
if ((i % 20) == 0)
|
|
gimp_progress_update ((double)(i + 1) / (double)height);
|
|
|
|
if ((scan_lines == tile_height) || ((i + 1) == height))
|
|
{
|
|
gegl_buffer_set (buffer, GEGL_RECTANGLE (0, i - scan_lines + 1,
|
|
width, scan_lines), 0,
|
|
NULL, data, GEGL_AUTO_ROWSTRIDE);
|
|
scan_lines = 0;
|
|
dest = data;
|
|
}
|
|
}
|
|
|
|
g_free (data);
|
|
|
|
if (err)
|
|
g_message (_("EOF encountered on reading"));
|
|
|
|
g_object_unref (buffer);
|
|
|
|
return image_ID;
|
|
}
|
|
|
|
|
|
/* Load SUN-raster-file with depth 32 */
|
|
|
|
static gint32
|
|
load_sun_d32 (const gchar *filename,
|
|
FILE *ifp,
|
|
L_SUNFILEHEADER *sunhdr,
|
|
guchar *suncolmap)
|
|
{
|
|
guchar *dest, blue;
|
|
guchar *data;
|
|
int width, height, tile_height, scan_lines;
|
|
int i, j;
|
|
gint32 layer_ID, image_ID;
|
|
GeglBuffer *buffer;
|
|
int err = 0;
|
|
int cerr;
|
|
gboolean rle = (sunhdr->l_ras_type == RAS_TYPE_RLE);
|
|
|
|
width = sunhdr->l_ras_width;
|
|
height = sunhdr->l_ras_height;
|
|
|
|
/* initialize */
|
|
|
|
cerr = 0;
|
|
|
|
image_ID = create_new_image (filename, width, height, GIMP_RGB,
|
|
&layer_ID, &buffer);
|
|
|
|
tile_height = gimp_tile_height ();
|
|
data = g_malloc (tile_height * width * 3);
|
|
|
|
if (rle)
|
|
rle_startread (ifp); /* Initialize RLE-buffer */
|
|
|
|
dest = data;
|
|
scan_lines = 0;
|
|
|
|
for (i = 0; i < height; i++)
|
|
{
|
|
if (rle)
|
|
{
|
|
for (j = 0; j < width; j++)
|
|
{
|
|
rle_getc (ifp); /* Skip unused byte */
|
|
*(dest++) = rle_getc (ifp);
|
|
*(dest++) = rle_getc (ifp);
|
|
*(dest++) = (cerr = (rle_getc (ifp)));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (j = 0; j < width; j++)
|
|
{
|
|
getc (ifp); /* Skip unused byte */
|
|
*(dest++) = getc (ifp);
|
|
*(dest++) = getc (ifp);
|
|
*(dest++) = (cerr = (getc (ifp)));
|
|
}
|
|
}
|
|
err |= (cerr < 0);
|
|
|
|
if (sunhdr->l_ras_type != 3) /* BGR format ? Correct it */
|
|
{
|
|
for (j = 0; j < width; j++)
|
|
{
|
|
dest -= 3;
|
|
blue = *dest;
|
|
*dest = *(dest+2);
|
|
*(dest+2) = blue;
|
|
}
|
|
dest += width*3;
|
|
}
|
|
|
|
scan_lines++;
|
|
|
|
if ((i % 20) == 0)
|
|
gimp_progress_update ((double)(i + 1) / (double)height);
|
|
|
|
if ((scan_lines == tile_height) || ((i + 1) == height))
|
|
{
|
|
gegl_buffer_set (buffer, GEGL_RECTANGLE (0, i - scan_lines + 1,
|
|
width, scan_lines), 0,
|
|
NULL, data, GEGL_AUTO_ROWSTRIDE);
|
|
scan_lines = 0;
|
|
dest = data;
|
|
}
|
|
}
|
|
|
|
g_free (data);
|
|
|
|
if (err)
|
|
g_message (_("EOF encountered on reading"));
|
|
|
|
g_object_unref (buffer);
|
|
|
|
return image_ID;
|
|
}
|
|
|
|
|
|
static gint
|
|
save_index (FILE *ofp,
|
|
gint32 image_ID,
|
|
gint32 drawable_ID,
|
|
gboolean grey,
|
|
gboolean rle)
|
|
{
|
|
int height, width, linepad, i, j;
|
|
int ncols, bw, is_bw, is_wb, bpl;
|
|
int tile_height;
|
|
long tmp = 0;
|
|
guchar *cmap, *bwline = NULL;
|
|
guchar *data, *src;
|
|
L_SUNFILEHEADER sunhdr;
|
|
guchar sun_colormap[256*3];
|
|
static guchar sun_bwmap[6] = { 0, 255, 0, 255, 0, 255 };
|
|
static guchar sun_wbmap[6] = { 255, 0, 255, 0, 255, 0 };
|
|
unsigned char *suncolmap = sun_colormap;
|
|
GeglBuffer *buffer;
|
|
const Babl *format;
|
|
WRITE_FUN *write_fun;
|
|
|
|
buffer = gimp_drawable_get_buffer (drawable_ID);
|
|
|
|
width = gegl_buffer_get_width (buffer);
|
|
height = gegl_buffer_get_height (buffer);
|
|
|
|
tile_height = gimp_tile_height ();
|
|
|
|
if (grey)
|
|
format = babl_format ("Y' u8");
|
|
else
|
|
format = gegl_buffer_get_format (buffer);
|
|
|
|
/* allocate a buffer for retrieving information from the buffer */
|
|
src = data = g_malloc (tile_height * width *
|
|
babl_format_get_bytes_per_pixel (format));
|
|
|
|
/* Fill SUN-color map */
|
|
if (grey)
|
|
{
|
|
ncols = 256;
|
|
|
|
for (j = 0; j < ncols; j++)
|
|
{
|
|
suncolmap[j] = j;
|
|
suncolmap[j + ncols] = j;
|
|
suncolmap[j + ncols * 2] = j;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
cmap = gimp_image_get_colormap (image_ID, &ncols);
|
|
|
|
for (j = 0; j < ncols; j++)
|
|
{
|
|
suncolmap[j] = *(cmap++);
|
|
suncolmap[j + ncols] = *(cmap++);
|
|
suncolmap[j + ncols * 2] = *(cmap++);
|
|
}
|
|
}
|
|
|
|
bw = (ncols == 2); /* Maybe this is a two-color image */
|
|
if (bw)
|
|
{
|
|
bwline = g_malloc ((width + 7) / 8);
|
|
if (bwline == NULL)
|
|
bw = 0;
|
|
}
|
|
|
|
is_bw = is_wb = 0;
|
|
if (bw) /* The Sun-OS imagetool generates index 0 for white and */
|
|
{ /* index 1 for black. Do the same without colortable. */
|
|
is_bw = (memcmp (suncolmap, sun_bwmap, 6) == 0);
|
|
is_wb = (memcmp (suncolmap, sun_wbmap, 6) == 0);
|
|
}
|
|
|
|
/* Number of data bytes per line */
|
|
bpl = bw ? (width+7)/8 : width;
|
|
linepad = bpl % 2;
|
|
|
|
/* Fill in the SUN header */
|
|
sunhdr.l_ras_magic = RAS_MAGIC;
|
|
sunhdr.l_ras_width = width;
|
|
sunhdr.l_ras_height = height;
|
|
sunhdr.l_ras_depth = bw ? 1 : 8;
|
|
sunhdr.l_ras_length = (bpl + linepad) * height;
|
|
sunhdr.l_ras_type = rle ? RAS_TYPE_RLE : RAS_TYPE_STD;
|
|
|
|
if (is_bw || is_wb) /* No colortable for real b/w images */
|
|
{
|
|
sunhdr.l_ras_maptype = 0; /* No colormap */
|
|
sunhdr.l_ras_maplength = 0; /* Length of colormap */
|
|
}
|
|
else
|
|
{
|
|
sunhdr.l_ras_maptype = 1; /* RGB colormap */
|
|
sunhdr.l_ras_maplength = ncols*3; /* Length of colormap */
|
|
}
|
|
|
|
write_sun_header (ofp, &sunhdr);
|
|
|
|
if (sunhdr.l_ras_maplength > 0)
|
|
write_sun_cols (ofp, &sunhdr, suncolmap);
|
|
|
|
#define GET_INDEX_TILE(begin) \
|
|
{int scan_lines; \
|
|
scan_lines = (i+tile_height-1 < height) ? tile_height : (height-i); \
|
|
gegl_buffer_get (buffer, GEGL_RECTANGLE (0, i, width, scan_lines), 1.0, \
|
|
format, begin, \
|
|
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE); \
|
|
src = begin; }
|
|
|
|
if (rle)
|
|
{
|
|
write_fun = (WRITE_FUN *) &rle_fwrite;
|
|
rle_startwrite (ofp);
|
|
}
|
|
else
|
|
{
|
|
write_fun = (WRITE_FUN *) &my_fwrite;
|
|
}
|
|
|
|
if (bw) /* Two color image */
|
|
{
|
|
for (i = 0; i < height; i++)
|
|
{
|
|
if ((i % tile_height) == 0)
|
|
GET_INDEX_TILE (data); /* Get more data */
|
|
|
|
byte2bit (src, width, bwline, is_bw);
|
|
(*write_fun) (bwline, bpl, 1, ofp);
|
|
if (linepad)
|
|
(*write_fun) ((char *)&tmp, linepad, 1, ofp);
|
|
src += width;
|
|
|
|
if ((i % 20) == 0)
|
|
gimp_progress_update ((double) i / (double) height);
|
|
}
|
|
}
|
|
else /* Color or grey-image */
|
|
{
|
|
for (i = 0; i < height; i++)
|
|
{
|
|
if ((i % tile_height) == 0)
|
|
GET_INDEX_TILE (data); /* Get more data */
|
|
|
|
(*write_fun) ((char *)src, width, 1, ofp);
|
|
if (linepad)
|
|
(*write_fun) ((char *)&tmp, linepad, 1, ofp);
|
|
src += width;
|
|
|
|
if ((i % 20) == 0)
|
|
gimp_progress_update ((double) i / (double) height);
|
|
}
|
|
}
|
|
|
|
#undef GET_INDEX_TILE
|
|
|
|
if (rle)
|
|
rle_endwrite (ofp);
|
|
|
|
g_free (data);
|
|
|
|
if (bwline)
|
|
g_free (bwline);
|
|
|
|
g_object_unref (buffer);
|
|
|
|
if (ferror (ofp))
|
|
{
|
|
g_message (_("Write error occurred"));
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
static gint
|
|
save_rgb (FILE *ofp,
|
|
gint32 image_ID,
|
|
gint32 drawable_ID,
|
|
gboolean rle)
|
|
{
|
|
int height, width, tile_height, linepad;
|
|
int i, j, bpp;
|
|
guchar *data, *src;
|
|
L_SUNFILEHEADER sunhdr;
|
|
GeglBuffer *buffer;
|
|
const Babl *format;
|
|
|
|
buffer = gimp_drawable_get_buffer (drawable_ID);
|
|
|
|
width = gegl_buffer_get_width (buffer);
|
|
height = gegl_buffer_get_height (buffer);
|
|
|
|
tile_height = gimp_tile_height ();
|
|
|
|
format = babl_format ("R'G'B' u8");
|
|
|
|
/* allocate a buffer for retrieving information from the pixel region */
|
|
src = data = g_malloc (tile_height * width *
|
|
babl_format_get_bytes_per_pixel (format));
|
|
|
|
/* #define SUNRAS_32 */
|
|
#ifdef SUNRAS_32
|
|
bpp = 4;
|
|
#else
|
|
bpp = 3;
|
|
#endif
|
|
linepad = (width * bpp) % 2;
|
|
|
|
/* Fill in the SUN header */
|
|
sunhdr.l_ras_magic = RAS_MAGIC;
|
|
sunhdr.l_ras_width = width;
|
|
sunhdr.l_ras_height = height;
|
|
sunhdr.l_ras_depth = 8 * bpp;
|
|
sunhdr.l_ras_length = (width * bpp + linepad) * height;
|
|
sunhdr.l_ras_type = rle ? RAS_TYPE_RLE : RAS_TYPE_STD;
|
|
sunhdr.l_ras_maptype = 0; /* No colormap */
|
|
sunhdr.l_ras_maplength = 0; /* Length of colormap */
|
|
|
|
write_sun_header (ofp, &sunhdr);
|
|
|
|
#define GET_RGB_TILE(begin) \
|
|
{int scan_lines; \
|
|
scan_lines = (i+tile_height-1 < height) ? tile_height : (height-i); \
|
|
gegl_buffer_get (buffer, GEGL_RECTANGLE (0, i, width, scan_lines), 1.0, \
|
|
format, begin, \
|
|
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE); \
|
|
src = begin; }
|
|
|
|
if (! rle)
|
|
{
|
|
for (i = 0; i < height; i++)
|
|
{
|
|
if ((i % tile_height) == 0)
|
|
GET_RGB_TILE (data); /* Get more data */
|
|
|
|
for (j = 0; j < width; j++)
|
|
{
|
|
if (bpp == 4) putc (0, ofp); /* Dummy */
|
|
putc (*(src + 2), ofp); /* Blue */
|
|
putc (*(src + 1), ofp); /* Green */
|
|
putc (*src, ofp); /* Red */
|
|
src += 3;
|
|
}
|
|
|
|
for (j = 0; j < linepad; j++)
|
|
putc (0, ofp);
|
|
|
|
if ((i % 20) == 0)
|
|
gimp_progress_update ((double) i / (double) height);
|
|
}
|
|
}
|
|
else /* Write runlength encoded */
|
|
{
|
|
rle_startwrite (ofp);
|
|
|
|
for (i = 0; i < height; i++)
|
|
{
|
|
if ((i % tile_height) == 0)
|
|
GET_RGB_TILE (data); /* Get more data */
|
|
|
|
for (j = 0; j < width; j++)
|
|
{
|
|
if (bpp == 4) rle_putc (0, ofp); /* Dummy */
|
|
rle_putc (*(src + 2), ofp); /* Blue */
|
|
rle_putc (*(src + 1), ofp); /* Green */
|
|
rle_putc (*src, ofp); /* Red */
|
|
src += 3;
|
|
}
|
|
|
|
for (j = 0; j < linepad; j++)
|
|
rle_putc (0, ofp);
|
|
|
|
if ((i % 20) == 0)
|
|
gimp_progress_update ((double) i / (double) height);
|
|
}
|
|
|
|
rle_endwrite (ofp);
|
|
}
|
|
|
|
#undef GET_RGB_TILE
|
|
|
|
g_free (data);
|
|
|
|
g_object_unref (buffer);
|
|
|
|
if (ferror (ofp))
|
|
{
|
|
g_message (_("Write error occurred"));
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/* Save interface functions */
|
|
|
|
static gboolean
|
|
save_dialog (void)
|
|
{
|
|
GtkWidget *dialog;
|
|
GtkWidget *frame;
|
|
gboolean run;
|
|
|
|
dialog = gimp_export_dialog_new (_("SUNRAS"), PLUG_IN_BINARY, SAVE_PROC);
|
|
|
|
/* file save type */
|
|
frame = gimp_int_radio_group_new (TRUE, _("Data Formatting"),
|
|
G_CALLBACK (gimp_radio_button_update),
|
|
&psvals.rle, psvals.rle,
|
|
|
|
_("RunLength Encoded"), TRUE, NULL,
|
|
_("Standard"), FALSE, NULL,
|
|
|
|
NULL);
|
|
|
|
gtk_container_set_border_width (GTK_CONTAINER (frame), 12);
|
|
gtk_box_pack_start (GTK_BOX (gimp_export_dialog_get_content_area (dialog)),
|
|
frame, TRUE, TRUE, 0);
|
|
gtk_widget_show (frame);
|
|
|
|
gtk_widget_show (dialog);
|
|
|
|
run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
|
|
|
|
gtk_widget_destroy (dialog);
|
|
|
|
return run;
|
|
}
|
|
|
|
static int
|
|
my_fwrite (void *ptr,
|
|
int size,
|
|
int nmemb,
|
|
FILE *stream)
|
|
{
|
|
return fwrite (ptr, size, nmemb, stream);
|
|
}
|