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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 03:13:10 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 03:13:10 +0000 |
| commit | 3c57dd931145d43f2b0aef96c4d178135956bf91 (patch) | |
| tree | 3de698981e9f0cc2c4f9569b19a5f3595e741f6b /plug-ins/file-sgi | |
| parent | Initial commit. (diff) | |
| download | gimp-3c57dd931145d43f2b0aef96c4d178135956bf91.tar.xz gimp-3c57dd931145d43f2b0aef96c4d178135956bf91.zip | |
Adding upstream version 2.10.36.upstream/2.10.36
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'plug-ins/file-sgi')
| -rw-r--r-- | plug-ins/file-sgi/Makefile.am | 49 | ||||
| -rw-r--r-- | plug-ins/file-sgi/Makefile.in | 1004 | ||||
| -rw-r--r-- | plug-ins/file-sgi/sgi-lib.c | 960 | ||||
| -rw-r--r-- | plug-ins/file-sgi/sgi-lib.h | 93 | ||||
| -rw-r--r-- | plug-ins/file-sgi/sgi.c | 702 |
5 files changed, 2808 insertions, 0 deletions
diff --git a/plug-ins/file-sgi/Makefile.am b/plug-ins/file-sgi/Makefile.am new file mode 100644 index 0000000..2dd6a6f --- /dev/null +++ b/plug-ins/file-sgi/Makefile.am @@ -0,0 +1,49 @@ +## Process this file with automake to produce Makefile.in + +libgimpui = $(top_builddir)/libgimp/libgimpui-$(GIMP_API_VERSION).la +libgimpconfig = $(top_builddir)/libgimpconfig/libgimpconfig-$(GIMP_API_VERSION).la +libgimpwidgets = $(top_builddir)/libgimpwidgets/libgimpwidgets-$(GIMP_API_VERSION).la +libgimp = $(top_builddir)/libgimp/libgimp-$(GIMP_API_VERSION).la +libgimpcolor = $(top_builddir)/libgimpcolor/libgimpcolor-$(GIMP_API_VERSION).la +libgimpbase = $(top_builddir)/libgimpbase/libgimpbase-$(GIMP_API_VERSION).la +libgimpmath = $(top_builddir)/libgimpmath/libgimpmath-$(GIMP_API_VERSION).la + +if OS_WIN32 +mwindows = -mwindows +endif + +if HAVE_WINDRES +include $(top_srcdir)/build/windows/gimprc-plug-ins.rule +file_sgi_RC = file-sgi.rc.o +endif + +AM_LDFLAGS = $(mwindows) + +libexecdir = $(gimpplugindir)/plug-ins/file-sgi + +libexec_PROGRAMS = file-sgi + +file_sgi_SOURCES = \ + sgi.c \ + sgi-lib.c \ + sgi-lib.h + +AM_CPPFLAGS = \ + -I$(top_srcdir) \ + $(GTK_CFLAGS) \ + $(GEGL_CFLAGS) \ + -I$(includedir) + +LDADD = \ + $(libgimpui) \ + $(libgimpwidgets) \ + $(libgimpconfig) \ + $(libgimpmath) \ + $(libgimp) \ + $(libgimpcolor) \ + $(libgimpbase) \ + $(GTK_LIBS) \ + $(GEGL_LIBS) \ + $(RT_LIBS) \ + $(INTLLIBS) \ + $(file_sgi_RC) diff --git a/plug-ins/file-sgi/Makefile.in b/plug-ins/file-sgi/Makefile.in new file mode 100644 index 0000000..1430bcd --- /dev/null +++ b/plug-ins/file-sgi/Makefile.in @@ -0,0 +1,1004 @@ +# Makefile.in generated by automake 1.16.3 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# Version resources for Microsoft Windows + +VPATH = @srcdir@ +am__is_gnu_make = { \ + if test -z '$(MAKELEVEL)'; then \ + false; \ + elif test -n '$(MAKE_HOST)'; then \ + true; \ + elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \ + true; \ + else \ + false; \ + fi; \ +} +am__make_running_with_option = \ + case $${target_option-} in \ + ?) ;; \ + *) echo "am__make_running_with_option: internal error: invalid" \ + "target option '$${target_option-}' specified" >&2; \ + exit 1;; \ + esac; \ + has_opt=no; \ + sane_makeflags=$$MAKEFLAGS; \ + if $(am__is_gnu_make); then \ + sane_makeflags=$$MFLAGS; 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install-html install-html-am \ + install-info install-info-am install-libexecPROGRAMS \ + install-man install-pdf install-pdf-am install-ps \ + install-ps-am install-strip installcheck installcheck-am \ + installdirs maintainer-clean maintainer-clean-generic \ + mostlyclean mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \ + uninstall-am uninstall-libexecPROGRAMS + +.PRECIOUS: Makefile + + +# `windres` seems a very stupid tool and it breaks with double shlashes +# in parameter paths. Strengthen the rule a little. +@HAVE_WINDRES_TRUE@%.rc.o: +@HAVE_WINDRES_TRUE@ $(WINDRES) --define ORIGINALFILENAME_STR="$*$(EXEEXT)" \ +@HAVE_WINDRES_TRUE@ --define INTERNALNAME_STR="$*" \ +@HAVE_WINDRES_TRUE@ --define TOP_SRCDIR="`echo $(top_srcdir) | sed 's*//*/*'`" \ +@HAVE_WINDRES_TRUE@ -I"`echo $(top_srcdir)/app | sed 's%/\+%/%'`" \ +@HAVE_WINDRES_TRUE@ -I"`echo $(top_builddir)/app | sed 's%/\+%/%'`"\ +@HAVE_WINDRES_TRUE@ -I"`echo $(top_builddir) | sed 's%/\+%/%'`"\ +@HAVE_WINDRES_TRUE@ $(GIMPPLUGINRC) $@ + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plug-ins/file-sgi/sgi-lib.c b/plug-ins/file-sgi/sgi-lib.c new file mode 100644 index 0000000..5f98b5e --- /dev/null +++ b/plug-ins/file-sgi/sgi-lib.c @@ -0,0 +1,960 @@ +/* + * SGI image file format library routines. + * + * 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 3 of the License, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + * + * Contents: + * + * sgiClose() - Close an SGI image file. + * sgiGetRow() - Get a row of image data from a file. + * sgiOpen() - Open an SGI image file for reading or writing. + * sgiOpenFile() - Open an SGI image file for reading or writing. + * sgiPutRow() - Put a row of image data to a file. + * getlong() - Get a 32-bit big-endian integer. + * getshort() - Get a 16-bit big-endian integer. + * putlong() - Put a 32-bit big-endian integer. + * putshort() - Put a 16-bit big-endian integer. + * read_rle8() - Read 8-bit RLE data. + * read_rle16() - Read 16-bit RLE data. + * write_rle8() - Write 8-bit RLE data. + * write_rle16() - Write 16-bit RLE data. + * + * Revision History: + * + * $Log$ + * Revision 1.9 2005/03/04 13:23:31 neo + * 2005-03-04 Sven Neumann <sven@gimp.org> + * + * * plug-ins/FractalExplorer + * * plug-ins/Lighting + * * plug-ins/bmp + * * plug-ins/dbbrowser + * * plug-ins/faxg3 + * * plug-ins/fits + * * plug-ins/flame + * * plug-ins/gfig + * * plug-ins/gflare + * * plug-ins/gfli + * * plug-ins/gimpressionist + * * plug-ins/ifscompose + * * plug-ins/jpeg + * * plug-ins/maze + * * plug-ins/pagecurl + * * plug-ins/print + * * plug-ins/rcm + * * plug-ins/script-fu + * * plug-ins/sel2path + * * plug-ins/sgi + * * plug-ins/twain + * * plug-ins/winicon + * * plug-ins/xjt: ported to gstdio, removed unnecessary includes, + * minor fixes to filename handling here and there. + * + * Revision 1.8 2003/04/07 11:59:33 neo + * 2003-04-07 Sven Neumann <sven@gimp.org> + * + * * plug-ins/sgi/sgi.h + * * plug-ins/sgi/sgilib.c: applied a patch from marek@aki.cz that + * adds support for reading SGI files in little-endian format. Fixes + * bug #106610. + * + * Revision 1.7 1998/06/06 23:22:21 yosh + * * adding Lighting plugin + * + * * updated despeckle, png, sgi, and sharpen + * + * -Yosh + * + * Revision 1.5 1998/04/23 17:40:49 mike + * Updated to support 16-bit <unsigned> image data. + * + * Revision 1.4 1998/02/05 17:10:58 mike + * Added sgiOpenFile() function for opening an existing file pointer. + * + * Revision 1.3 1997/07/02 16:40:16 mike + * sgiOpen() wasn't opening files with "rb" or "wb+". This caused problems + * on PCs running Windows/DOS... + * + * Revision 1.2 1997/06/18 00:55:28 mike + * Updated to hold length table when writing. + * Updated to hold current length when doing ARLE. + * Wasn't writing length table on close. + * Wasn't saving new line into arle_row when necessary. + * + * Revision 1.1 1997/06/15 03:37:19 mike + * Initial revision + */ + +#include "config.h" + +#include <stdlib.h> +#include <string.h> + +#include <glib.h> +#include <glib/gstdio.h> + +#include "sgi-lib.h" + + +/* + * Local functions... + */ + +static int getlong(sgi_t*); +static int getshort(sgi_t*); +static int putlong(long, sgi_t*); +static int putshort(unsigned short, sgi_t*); +static int read_rle8(sgi_t*, unsigned short *, int); +static int read_rle16(sgi_t*, unsigned short *, int); +static int write_rle8(sgi_t*, unsigned short *, int); +static int write_rle16(sgi_t*, unsigned short *, int); + + +/* + * 'sgiClose()' - Close an SGI image file. + */ + +int +sgiClose(sgi_t *sgip) /* I - SGI image */ +{ + int i; /* Return status */ + long *offset; /* Looping var for offset table */ + + + if (sgip == NULL) + return (-1); + + if (sgip->mode == SGI_WRITE && sgip->comp != SGI_COMP_NONE) + { + /* + * Write the scanline offset table to the file... + */ + + fseek(sgip->file, 512, SEEK_SET); + + for (i = sgip->ysize * sgip->zsize, offset = sgip->table[0]; + i > 0; + i --, offset ++) + if (putlong(offset[0], sgip) < 0) + return (-1); + + for (i = sgip->ysize * sgip->zsize, offset = sgip->length[0]; + i > 0; + i --, offset ++) + if (putlong(offset[0], sgip) < 0) + return (-1); + }; + + if (sgip->table != NULL) + { + free(sgip->table[0]); + free(sgip->table); + }; + + if (sgip->length != NULL) + { + free(sgip->length[0]); + free(sgip->length); + }; + + if (sgip->comp == SGI_COMP_ARLE) + free(sgip->arle_row); + + i = fclose(sgip->file); + free(sgip); + + return (i); +} + + +/* + * 'sgiGetRow()' - Get a row of image data from a file. + */ + +int +sgiGetRow(sgi_t *sgip, /* I - SGI image */ + unsigned short *row, /* O - Row to read */ + int y, /* I - Line to read */ + int z) /* I - Channel to read */ +{ + int x; /* X coordinate */ + long offset; /* File offset */ + + + if (sgip == NULL || + row == NULL || + y < 0 || y >= sgip->ysize || + z < 0 || z >= sgip->zsize) + return (-1); + + switch (sgip->comp) + { + case SGI_COMP_NONE : + /* + * Seek to the image row - optimize buffering by only seeking if + * necessary... + */ + + offset = 512 + (y + z * sgip->ysize) * sgip->xsize * sgip->bpp; + if (offset != ftell(sgip->file)) + fseek(sgip->file, offset, SEEK_SET); + + if (sgip->bpp == 1) + { + for (x = sgip->xsize; x > 0; x --, row ++) + *row = getc(sgip->file); + } + else + { + for (x = sgip->xsize; x > 0; x --, row ++) + *row = getshort(sgip); + }; + break; + + case SGI_COMP_RLE : + offset = sgip->table[z][y]; + if (offset != ftell(sgip->file)) + fseek(sgip->file, offset, SEEK_SET); + + if (sgip->bpp == 1) + return (read_rle8(sgip, row, sgip->xsize)); + else + return (read_rle16(sgip, row, sgip->xsize)); + break; + }; + + return (0); +} + + +/* + * 'sgiOpen()' - Open an SGI image file for reading or writing. + */ + +sgi_t * +sgiOpen(const char *filename, /* I - File to open */ + int mode, /* I - Open mode (SGI_READ or SGI_WRITE) */ + int comp, /* I - Type of compression */ + int bpp, /* I - Bytes per pixel */ + int xsize, /* I - Width of image in pixels */ + int ysize, /* I - Height of image in pixels */ + int zsize) /* I - Number of channels */ +{ + sgi_t *sgip; /* New SGI image file */ + FILE *file; /* Image file pointer */ + + + if (mode == SGI_READ) + file = g_fopen(filename, "rb"); + else + file = g_fopen(filename, "w+b"); + + if (file == NULL) + return (NULL); + + if ((sgip = sgiOpenFile(file, mode, comp, bpp, xsize, ysize, zsize)) == NULL) + fclose(file); + + return (sgip); +} + + +/* + * 'sgiOpenFile()' - Open an SGI image file for reading or writing. + */ + +sgi_t * +sgiOpenFile(FILE *file, /* I - File to open */ + int mode, /* I - Open mode (SGI_READ or SGI_WRITE) */ + int comp, /* I - Type of compression */ + int bpp, /* I - Bytes per pixel */ + int xsize, /* I - Width of image in pixels */ + int ysize, /* I - Height of image in pixels */ + int zsize) /* I - Number of channels */ +{ + int i, j; /* Looping var */ + char name[80]; /* Name of file in image header */ + short magic; /* Magic number */ + sgi_t *sgip; /* New image pointer */ + + + if ((sgip = calloc(sizeof(sgi_t), 1)) == NULL) + return (NULL); + + sgip->file = file; + sgip->swapBytes = 0; + + switch (mode) + { + case SGI_READ : + sgip->mode = SGI_READ; + + magic = getshort(sgip); + if (magic != SGI_MAGIC) + { + /* try little endian format */ + magic = ((magic >> 8) & 0x00ff) | ((magic << 8) & 0xff00); + if(magic != SGI_MAGIC) { + free(sgip); + return (NULL); + } else { + sgip->swapBytes = 1; + } + } + + sgip->comp = getc(sgip->file); + sgip->bpp = getc(sgip->file); + getshort(sgip); /* Dimensions */ + sgip->xsize = getshort(sgip); + sgip->ysize = getshort(sgip); + sgip->zsize = getshort(sgip); + getlong(sgip); /* Minimum pixel */ + getlong(sgip); /* Maximum pixel */ + + if (sgip->comp) + { + /* + * This file is compressed; read the scanline tables... + */ + + fseek(sgip->file, 512, SEEK_SET); + + sgip->table = calloc(sgip->zsize, sizeof(long *)); + if (sgip->table == NULL) + { + free(sgip); + return (NULL); + } + sgip->table[0] = calloc(sgip->ysize * sgip->zsize, sizeof(long)); + if (sgip->table[0] == NULL) + { + free(sgip->table); + free(sgip); + return (NULL); + } + for (i = 1; i < sgip->zsize; i ++) + sgip->table[i] = sgip->table[0] + i * sgip->ysize; + + for (i = 0; i < sgip->zsize; i ++) + for (j = 0; j < sgip->ysize; j ++) + sgip->table[i][j] = getlong(sgip); + }; + break; + + case SGI_WRITE : + if (xsize < 1 || + ysize < 1 || + zsize < 1 || + bpp < 1 || bpp > 2 || + comp < SGI_COMP_NONE || comp > SGI_COMP_ARLE) + { + free(sgip); + return (NULL); + }; + + sgip->mode = SGI_WRITE; + + putshort(SGI_MAGIC, sgip); + putc((sgip->comp = comp) != 0, sgip->file); + putc(sgip->bpp = bpp, sgip->file); + putshort(3, sgip); /* Dimensions */ + putshort(sgip->xsize = xsize, sgip); + putshort(sgip->ysize = ysize, sgip); + putshort(sgip->zsize = zsize, sgip); + if (bpp == 1) + { + putlong(0, sgip); /* Minimum pixel */ + putlong(255, sgip); /* Maximum pixel */ + } + else + { + putlong(-32768, sgip); /* Minimum pixel */ + putlong(32767, sgip); /* Maximum pixel */ + }; + putlong(0, sgip); /* Reserved */ + + memset(name, 0, sizeof(name)); + fwrite(name, sizeof(name), 1, sgip->file); + + for (i = 0; i < 102; i ++) + putlong(0, sgip); + + switch (comp) + { + case SGI_COMP_NONE : /* No compression */ + /* + * This file is uncompressed. To avoid problems with sparse files, + * we need to write blank pixels for the entire image... + */ + + if (bpp == 1) + { + for (i = xsize * ysize * zsize; i > 0; i --) + putc(0, sgip->file); + } + else + { + for (i = xsize * ysize * zsize; i > 0; i --) + putshort(0, sgip); + }; + break; + + case SGI_COMP_ARLE : /* Aggressive RLE */ + sgip->arle_row = (unsigned short *)calloc(xsize, sizeof(unsigned short)); + if (sgip->arle_row == NULL) + { + free(sgip); + return (NULL); + } + sgip->arle_offset = 0; + + case SGI_COMP_RLE : /* Run-Length Encoding */ + /* + * This file is compressed; write the (blank) scanline tables... + */ + + for (i = 2 * ysize * zsize; i > 0; i --) + putlong(0, sgip); + + sgip->firstrow = ftell(sgip->file); + sgip->nextrow = ftell(sgip->file); + sgip->table = calloc(sgip->zsize, sizeof(long *)); + if (sgip->table == NULL) + { + free(sgip->arle_row); + free(sgip); + return (NULL); + } + sgip->table[0] = calloc(sgip->ysize * sgip->zsize, sizeof(long)); + if (sgip->table[0] == NULL) + { + free(sgip->table); + free(sgip->arle_row); + free(sgip); + return (NULL); + } + for (i = 1; i < sgip->zsize; i ++) + sgip->table[i] = sgip->table[0] + i * sgip->ysize; + sgip->length = calloc(sgip->zsize, sizeof(long *)); + sgip->length[0] = calloc(sgip->ysize * sgip->zsize, sizeof(long)); + for (i = 1; i < sgip->zsize; i ++) + sgip->length[i] = sgip->length[0] + i * sgip->ysize; + break; + }; + break; + + default : + free(sgip); + return (NULL); + }; + + return (sgip); +} + + +/* + * 'sgiPutRow()' - Put a row of image data to a file. + */ + +int +sgiPutRow(sgi_t *sgip, /* I - SGI image */ + unsigned short *row, /* I - Row to write */ + int y, /* I - Line to write */ + int z) /* I - Channel to write */ +{ + int x; /* X coordinate */ + long offset; /* File offset */ + + + if (sgip == NULL || + row == NULL || + y < 0 || y >= sgip->ysize || + z < 0 || z >= sgip->zsize) + return (-1); + + switch (sgip->comp) + { + case SGI_COMP_NONE : + /* + * Seek to the image row - optimize buffering by only seeking if + * necessary... + */ + + offset = 512 + (y + z * sgip->ysize) * sgip->xsize * sgip->bpp; + if (offset != ftell(sgip->file)) + fseek(sgip->file, offset, SEEK_SET); + + if (sgip->bpp == 1) + { + for (x = sgip->xsize; x > 0; x --, row ++) + putc(*row, sgip->file); + } + else + { + for (x = sgip->xsize; x > 0; x --, row ++) + putshort(*row, sgip); + }; + break; + + case SGI_COMP_ARLE : + if (sgip->table[z][y] != 0) + return (-1); + + /* + * First check the last row written... + */ + + if (sgip->arle_offset > 0) + { + for (x = 0; x < sgip->xsize; x ++) + if (row[x] != sgip->arle_row[x]) + break; + + if (x == sgip->xsize) + { + sgip->table[z][y] = sgip->arle_offset; + sgip->length[z][y] = sgip->arle_length; + return (0); + }; + }; + + /* + * If that didn't match, search all the previous rows... + */ + + fseek(sgip->file, sgip->firstrow, SEEK_SET); + + if (sgip->bpp == 1) + { + do + { + sgip->arle_offset = ftell(sgip->file); + if ((sgip->arle_length = read_rle8(sgip, sgip->arle_row, sgip->xsize)) < 0) + { + x = 0; + break; + }; + + for (x = 0; x < sgip->xsize; x ++) + if (row[x] != sgip->arle_row[x]) + break; + } + while (x < sgip->xsize); + } + else + { + do + { + sgip->arle_offset = ftell(sgip->file); + if ((sgip->arle_length = read_rle16(sgip, sgip->arle_row, sgip->xsize)) < 0) + { + x = 0; + break; + }; + + for (x = 0; x < sgip->xsize; x ++) + if (row[x] != sgip->arle_row[x]) + break; + } + while (x < sgip->xsize); + }; + + if (x == sgip->xsize) + { + sgip->table[z][y] = sgip->arle_offset; + sgip->length[z][y] = sgip->arle_length; + return (0); + } + else + fseek(sgip->file, 0, SEEK_END); /* Clear EOF */ + + case SGI_COMP_RLE : + if (sgip->table[z][y] != 0) + return (-1); + + offset = sgip->table[z][y] = sgip->nextrow; + + if (offset != ftell(sgip->file)) + fseek(sgip->file, offset, SEEK_SET); + + if (sgip->bpp == 1) + x = write_rle8(sgip, row, sgip->xsize); + else + x = write_rle16(sgip, row, sgip->xsize); + + if (sgip->comp == SGI_COMP_ARLE) + { + sgip->arle_offset = offset; + sgip->arle_length = x; + memcpy(sgip->arle_row, row, sgip->xsize * sizeof(short)); + }; + + sgip->nextrow = ftell(sgip->file); + sgip->length[z][y] = x; + + return (x); + }; + + return (0); +} + + +/* + * 'getlong()' - Get a 32-bit big-endian integer. + */ + +static int +getlong(sgi_t *sgip) /* I - SGI image to read from */ +{ + unsigned char b[4]; + + + fread(b, 4, 1, sgip->file); + if(sgip->swapBytes) + return ((b[3] << 24) | (b[2] << 16) | (b[1] << 8) | b[0]); + else + return ((b[0] << 24) | (b[1] << 16) | (b[2] << 8) | b[3]); +} + + +/* + * 'getshort()' - Get a 16-bit big-endian integer. + */ + +static int +getshort(sgi_t *sgip) /* I - SGI image to read from */ +{ + unsigned char b[2]; + + + fread(b, 2, 1, sgip->file); + if(sgip->swapBytes) + return ((b[1] << 8) | b[0]); + else + return ((b[0] << 8) | b[1]); +} + + +/* + * 'putlong()' - Put a 32-bit big-endian integer. + */ + +static int +putlong(long n, /* I - Long to write */ + sgi_t *sgip) /* I - File to write to */ +{ + if (putc(n >> 24, sgip->file) == EOF) + return (EOF); + if (putc(n >> 16, sgip->file) == EOF) + return (EOF); + if (putc(n >> 8, sgip->file) == EOF) + return (EOF); + if (putc(n, sgip->file) == EOF) + return (EOF); + else + return (0); +} + + +/* + * 'putshort()' - Put a 16-bit big-endian integer. + */ + +static int +putshort(unsigned short n, /* I - Short to write */ + sgi_t *sgip) /* I - File to write to */ +{ + if (putc(n >> 8, sgip->file) == EOF) + return (EOF); + if (putc(n, sgip->file) == EOF) + return (EOF); + else + return (0); +} + + +/* + * 'read_rle8()' - Read 8-bit RLE data. + */ + +static int +read_rle8(sgi_t *sgip, /* I - SGI image to read from */ + unsigned short *row, /* O - Data */ + int xsize) /* I - Width of data in pixels */ +{ + int i, /* Looping var */ + ch, /* Current character */ + count, /* RLE count */ + length; /* Number of bytes read... */ + + + length = 0; + + while (xsize > 0) + { + if ((ch = getc(sgip->file)) == EOF) + return (-1); + length ++; + + count = MIN (ch & 127, xsize); + if (count == 0) + break; + + if (ch & 128) + { + for (i = 0; i < count; i ++, row ++, xsize --, length ++) + *row = getc(sgip->file); + } + else + { + ch = getc(sgip->file); + length ++; + for (i = 0; i < count; i ++, row ++, xsize --) + *row = ch; + }; + }; + + return (xsize > 0 ? -1 : length); +} + + +/* + * 'read_rle16()' - Read 16-bit RLE data. + */ + +static int +read_rle16(sgi_t *sgip, /* I - SGI image to read from */ + unsigned short *row, /* O - Data */ + int xsize)/* I - Width of data in pixels */ +{ + int i, /* Looping var */ + ch, /* Current character */ + count, /* RLE count */ + length; /* Number of bytes read... */ + + + length = 0; + + while (xsize > 0) + { + if ((ch = getshort(sgip)) == EOF) + return (-1); + length ++; + + count = MIN (ch & 127, xsize); + if (count == 0) + break; + + if (ch & 128) + { + for (i = 0; i < count; i ++, row ++, xsize --, length ++) + *row = getshort(sgip); + } + else + { + ch = getshort(sgip); + length ++; + for (i = 0; i < count; i ++, row ++, xsize --) + *row = ch; + }; + }; + + return (xsize > 0 ? -1 : length * 2); +} + + +/* + * 'write_rle8()' - Write 8-bit RLE data. + */ + +static int +write_rle8(sgi_t *sgip, /* I - SGI image to write to */ + unsigned short *row, /* I - Data */ + int xsize)/* I - Width of data in pixels */ +{ + int length, /* Length of output line */ + count, /* Number of repeated/non-repeated pixels */ + i, /* Looping var */ + x; /* Looping var */ + unsigned short *start, /* Start of sequence */ + repeat; /* Repeated pixel */ + + + for (x = xsize, length = 0; x > 0;) + { + start = row; + row += 2; + x -= 2; + + while (x > 0 && (row[-2] != row[-1] || row[-1] != row[0])) + { + row ++; + x --; + }; + + row -= 2; + x += 2; + + count = row - start; + while (count > 0) + { + i = count > 126 ? 126 : count; + count -= i; + + if (putc(128 | i, sgip->file) == EOF) + return (-1); + length ++; + + while (i > 0) + { + if (putc(*start, sgip->file) == EOF) + return (-1); + start ++; + i --; + length ++; + }; + }; + + if (x <= 0) + break; + + start = row; + repeat = row[0]; + + row ++; + x --; + + while (x > 0 && *row == repeat) + { + row ++; + x --; + }; + + count = row - start; + while (count > 0) + { + i = count > 126 ? 126 : count; + count -= i; + + if (putc(i, sgip->file) == EOF) + return (-1); + length ++; + + if (putc(repeat, sgip->file) == EOF) + return (-1); + length ++; + }; + }; + + length ++; + + if (putc(0, sgip->file) == EOF) + return (-1); + else + return (length); +} + + +/* + * 'write_rle16()' - Write 16-bit RLE data. + */ + +static int +write_rle16(sgi_t *sgip, /* I - SGI image to write to */ + unsigned short *row,/* I - Data */ + int xsize)/* I - Width of data in pixels */ +{ + int length, /* Length of output line */ + count, /* Number of repeated/non-repeated pixels */ + i, /* Looping var */ + x; /* Looping var */ + unsigned short *start, /* Start of sequence */ + repeat; /* Repeated pixel */ + + + for (x = xsize, length = 0; x > 0;) + { + start = row; + row += 2; + x -= 2; + + while (x > 0 && (row[-2] != row[-1] || row[-1] != row[0])) + { + row ++; + x --; + }; + + row -= 2; + x += 2; + + count = row - start; + while (count > 0) + { + i = count > 126 ? 126 : count; + count -= i; + + if (putshort(128 | i, sgip) == EOF) + return (-1); + length ++; + + while (i > 0) + { + if (putshort(*start, sgip) == EOF) + return (-1); + start ++; + i --; + length ++; + }; + }; + + if (x <= 0) + break; + + start = row; + repeat = row[0]; + + row ++; + x --; + + while (x > 0 && *row == repeat) + { + row ++; + x --; + }; + + count = row - start; + while (count > 0) + { + i = count > 126 ? 126 : count; + count -= i; + + if (putshort(i, sgip) == EOF) + return (-1); + length ++; + + if (putshort(repeat, sgip) == EOF) + return (-1); + length ++; + }; + }; + + length ++; + + if (putshort(0, sgip) == EOF) + return (-1); + else + return (2 * length); +} diff --git a/plug-ins/file-sgi/sgi-lib.h b/plug-ins/file-sgi/sgi-lib.h new file mode 100644 index 0000000..e2fc44d --- /dev/null +++ b/plug-ins/file-sgi/sgi-lib.h @@ -0,0 +1,93 @@ +/* + * SGI image file format library definitions. + * + * 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 3 of the License, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#ifndef __SGI_LIB_H__ +#define __SGI_LIB_H__ + +G_BEGIN_DECLS + +/* + * Constants... + */ + +# define SGI_MAGIC 474 /* Magic number in image file */ + +# define SGI_READ 0 /* Read from an SGI image file */ +# define SGI_WRITE 1 /* Write to an SGI image file */ + +# define SGI_COMP_NONE 0 /* No compression */ +# define SGI_COMP_RLE 1 /* Run-length encoding */ +# define SGI_COMP_ARLE 2 /* Aggressive run-length encoding */ + + +/* + * Image structure... + */ + +typedef struct +{ + FILE *file; /* Image file */ + int mode, /* File open mode */ + bpp, /* Bytes per pixel/channel */ + comp, /* Compression */ + swapBytes; /* SwapBytes flag */ + unsigned short xsize, /* Width in pixels */ + ysize, /* Height in pixels */ + zsize; /* Number of channels */ + long firstrow, /* File offset for first row */ + nextrow, /* File offset for next row */ + **table, /* Offset table for compression */ + **length; /* Length table for compression */ + unsigned short *arle_row; /* Advanced RLE compression buffer */ + long arle_offset, /* Advanced RLE buffer offset */ + arle_length; /* Advanced RLE buffer length */ +} sgi_t; + + +/* + * Prototypes... + */ + +extern int sgiClose (sgi_t *sgip); +extern int sgiGetRow (sgi_t *sgip, + unsigned short *row, + int y, + int z); +extern sgi_t *sgiOpen (const char *filename, + int mode, + int comp, + int bpp, + int xsize, + int ysize, + int zsize); +extern sgi_t *sgiOpenFile (FILE *file, + int mode, + int comp, + int bpp, + int xsize, + int ysize, + int zsize); +extern int sgiPutRow (sgi_t *sgip, + unsigned short *row, + int y, + int z); + +G_END_DECLS + +#endif /* !__SGI_LIB_H__ */ diff --git a/plug-ins/file-sgi/sgi.c b/plug-ins/file-sgi/sgi.c new file mode 100644 index 0000000..03cd019 --- /dev/null +++ b/plug-ins/file-sgi/sgi.c @@ -0,0 +1,702 @@ +/* + * SGI image file plug-in for 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 3 of the License, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + * + * 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() - Export the specified image to a PNG file. + * save_ok_callback() - Destroy the export dialog and export the image. + * save_dialog() - Pop up the export dialog. + * + */ + +#include "config.h" + +#include <string.h> + +#include <libgimp/gimp.h> +#include <libgimp/gimpui.h> + +#include "sgi-lib.h" + +#include "libgimp/stdplugins-intl.h" + + +/* + * Constants... + */ + +#define LOAD_PROC "file-sgi-load" +#define SAVE_PROC "file-sgi-save" +#define PLUG_IN_BINARY "file-sgi" +#define PLUG_IN_ROLE "gimp-file-sgi" +#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, + GError **error); +static gint save_image (const gchar *filename, + gint32 image_ID, + gint32 drawable_ID, + GError **error); + +static gboolean save_dialog (void); + +/* + * Globals... + */ + +const 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 const GimpParamDef load_args[] = + { + { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" }, + { GIMP_PDB_STRING, "filename", "The name of the file to load" }, + { GIMP_PDB_STRING, "raw-filename", "The name of the file to load" }, + }; + static const GimpParamDef load_return_vals[] = + { + { GIMP_PDB_IMAGE, "image", "Output image" }, + }; + + 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 export" }, + { GIMP_PDB_STRING, "filename", "The name of the file to export the image in" }, + { GIMP_PDB_STRING, "raw-filename", "The name of the file to export the image in" }, + { GIMP_PDB_INT32, "compression", "Compression level (0 = none, 1 = RLE, 2 = ARLE)" } + }; + + gimp_install_procedure (LOAD_PROC, + "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 (LOAD_PROC, "image/x-sgi"); + gimp_register_magic_load_handler (LOAD_PROC, + "sgi,rgb,rgba,bw,icon", + "", + "0,short,474"); + + gimp_install_procedure (SAVE_PROC, + "Exports files in SGI image file format", + "This plug-in exports SGI image files.", + "Michael Sweet <mike@easysw.com>", + "Copyright 1997-1998 by Michael Sweet", + PLUG_IN_VERSION, + N_("Silicon Graphics IRIS image"), + "RGB*, GRAY*, INDEXED*", + GIMP_PLUGIN, + G_N_ELEMENTS (save_args), + 0, + save_args, + NULL); + + gimp_register_file_handler_mime (SAVE_PROC, "image/x-sgi"); + gimp_register_save_handler (SAVE_PROC, "sgi,rgb,rgba,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; + GError *error = NULL; + + INIT_I18N (); + gegl_init (NULL, NULL); + + 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; + + if (strcmp (name, LOAD_PROC) == 0) + { + image_ID = load_image (param[1].data.d_string, &error); + + 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, SAVE_PROC) == 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 (PLUG_IN_BINARY, FALSE); + + export = gimp_export_image (&image_ID, &drawable_ID, "SGI", + 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; + } + + switch (run_mode) + { + case GIMP_RUN_INTERACTIVE: + /* + * Possibly retrieve data... + */ + gimp_get_data (SAVE_PROC, &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 (SAVE_PROC, &compression); + break; + + default: + break; + }; + + if (status == GIMP_PDB_SUCCESS) + { + if (save_image (param[3].data.d_string, image_ID, drawable_ID, + &error)) + { + gimp_set_data (SAVE_PROC, &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; + } + + if (status != GIMP_PDB_SUCCESS && error) + { + *nreturn_vals = 2; + values[1].type = GIMP_PDB_STRING; + values[1].data.d_string = error->message; + } + + values[0].data.d_status = status; +} + + +/* + * 'load_image()' - Load a PNG image into a new image window. + */ + +static gint32 +load_image (const gchar *filename, + GError **error) +{ + gint 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 */ + GeglBuffer *buffer; /* Buffer for layer */ + guchar **pixels, /* Pixel rows */ + *pptr; /* Current pixel */ + gushort **rows; /* SGI image data */ + + /* + * Open the file for reading... + */ + + gimp_progress_init_printf (_("Opening '%s'"), + gimp_filename_to_utf8 (filename)); + + sgip = sgiOpen (filename, SGI_READ, 0, 0, 0, 0, 0); + if (sgip == NULL) + { + g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED, + _("Could not open '%s' for reading."), + gimp_filename_to_utf8 (filename)); + free (sgip); + return -1; + }; + + /* + * Get the image dimensions and create the image... + */ + + /* Sanitize dimensions (note that they are unsigned short and can + * thus never be larger than GIMP_MAX_IMAGE_SIZE + */ + if (sgip->xsize == 0 /*|| sgip->xsize > GIMP_MAX_IMAGE_SIZE*/) + { + g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED, + _("Invalid width: %hu"), sgip->xsize); + free (sgip); + return -1; + } + + if (sgip->ysize == 0 /*|| sgip->ysize > GIMP_MAX_IMAGE_SIZE*/) + { + g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED, + _("Invalid height: %hu"), sgip->ysize); + free (sgip); + return -1; + } + + if (sgip->zsize == 0 /*|| sgip->zsize > GIMP_MAX_IMAGE_SIZE*/) + { + g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED, + _("Invalid number of channels: %hu"), sgip->zsize); + free (sgip); + return -1; + } + + 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_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED, + "Could not allocate new image: %s", + gimp_get_pdb_error()); + free (sgip); + 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_image_get_default_new_layer_mode (image)); + gimp_image_insert_layer (image, layer, -1, 0); + + /* + * Get the drawable and set the pixel region for our load... + */ + + buffer = gimp_drawable_get_buffer (layer); + + /* + * Temporary buffers... + */ + + tile_height = gimp_tile_height (); + pixels = g_new (guchar *, tile_height); + pixels[0] = g_new (guchar, ((gsize) tile_height) * sgip->xsize * bytes); + + for (i = 1; i < tile_height; i ++) + pixels[i] = pixels[0] + sgip->xsize * bytes * i; + + rows = g_new (unsigned short *, sgip->zsize); + rows[0] = g_new (unsigned short, ((gsize) 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) + { + gegl_buffer_set (buffer, GEGL_RECTANGLE (0, y - count, + sgip->xsize, count), 0, + NULL, pixels[0], GEGL_AUTO_ROWSTRIDE); + + 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) + g_printerr ("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) + */ + + gegl_buffer_set (buffer, GEGL_RECTANGLE (0, y - count, + sgip->xsize, count), 0, + NULL, pixels[0], GEGL_AUTO_ROWSTRIDE); + + /* + * Done with the file... + */ + + sgiClose (sgip); + + g_free (pixels[0]); + g_free (pixels); + g_free (rows[0]); + g_free (rows); + + g_object_unref (buffer); + + gimp_progress_update (1.0); + + 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, + GError **error) +{ + gint i, j, /* Looping var */ + x, /* Current X coordinate */ + y, /* Current Y coordinate */ + width, /* Drawable width */ + height, /* Drawable height */ + 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 */ + GeglBuffer *buffer; /* Buffer for layer */ + const Babl *format; + guchar **pixels, /* Pixel rows */ + *pptr; /* Current pixel */ + gushort **rows; /* SGI image data */ + + /* + * Get the drawable for the current image... + */ + + width = gimp_drawable_width (drawable_ID); + height = gimp_drawable_height (drawable_ID); + + buffer = gimp_drawable_get_buffer (drawable_ID); + + switch (gimp_drawable_type (drawable_ID)) + { + case GIMP_GRAY_IMAGE: + zsize = 1; + format = babl_format ("Y' u8"); + break; + + case GIMP_GRAYA_IMAGE: + zsize = 2; + format = babl_format ("Y'A u8"); + break; + + case GIMP_RGB_IMAGE: + case GIMP_INDEXED_IMAGE: + zsize = 3; + format = babl_format ("R'G'B' u8"); + break; + + case GIMP_RGBA_IMAGE: + case GIMP_INDEXEDA_IMAGE: + format = babl_format ("R'G'B'A u8"); + zsize = 4; + break; + + default: + return FALSE; + } + + /* + * Open the file for writing... + */ + + gimp_progress_init_printf (_("Exporting '%s'"), + gimp_filename_to_utf8 (filename)); + + sgip = sgiOpen (filename, SGI_WRITE, compression, 1, + width, height, zsize); + if (sgip == NULL) + { + g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED, + _("Could not open '%s' for writing."), + gimp_filename_to_utf8 (filename)); + return FALSE; + }; + + /* + * Allocate memory for "tile_height" rows... + */ + + tile_height = gimp_tile_height (); + pixels = g_new (guchar *, tile_height); + pixels[0] = g_new (guchar, ((gsize) tile_height) * width * zsize); + + for (i = 1; i < tile_height; i ++) + pixels[i]= pixels[0] + width * zsize * i; + + rows = g_new (gushort *, sgip->zsize); + rows[0] = g_new (gushort, ((gsize) 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 < height; y += count) + { + /* + * Grab more pixel data... + */ + + if ((y + tile_height) >= height) + count = height - y; + else + count = tile_height; + + gegl_buffer_get (buffer, GEGL_RECTANGLE (0, y, width, count), 1.0, + format, pixels[0], + GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE); + + /* + * Convert to shorts and write each color plane separately... + */ + + for (i = 0, pptr = pixels[0]; i < count; i ++) + { + for (x = 0; x < width; x ++) + for (j = 0; j < zsize; j ++, pptr ++) + rows[j][x] = *pptr; + + for (j = 0; j < zsize; j ++) + sgiPutRow (sgip, rows[j], height - 1 - y - i, j); + }; + + gimp_progress_update ((double) y / (double) height); + } + + /* + * Done with the file... + */ + + sgiClose (sgip); + + g_free (pixels[0]); + g_free (pixels); + g_free (rows[0]); + g_free (rows); + + g_object_unref (buffer); + + gimp_progress_update (1.0); + + return TRUE; +} + +static gboolean +save_dialog (void) +{ + GtkWidget *dialog; + GtkWidget *frame; + gboolean run; + + dialog = gimp_export_dialog_new (_("SGI"), PLUG_IN_BINARY, SAVE_PROC); + + 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 (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; +} |