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-rw-r--r--plug-ins/file-sgi/Makefile.am49
-rw-r--r--plug-ins/file-sgi/Makefile.in1004
-rw-r--r--plug-ins/file-sgi/sgi-lib.c960
-rw-r--r--plug-ins/file-sgi/sgi-lib.h93
-rw-r--r--plug-ins/file-sgi/sgi.c702
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; \
+ else \
+ case $$MAKEFLAGS in \
+ *\\[\ \ ]*) \
+ bs=\\; \
+ sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+ | sed "s/$$bs$$bs[$$bs $$bs ]*//g"`;; \
+ esac; \
+ fi; \
+ skip_next=no; \
+ strip_trailopt () \
+ { \
+ flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+ }; \
+ for flg in $$sane_makeflags; do \
+ test $$skip_next = yes && { skip_next=no; continue; }; \
+ case $$flg in \
+ *=*|--*) continue;; \
+ -*I) strip_trailopt 'I'; skip_next=yes;; \
+ -*I?*) strip_trailopt 'I';; \
+ -*O) strip_trailopt 'O'; skip_next=yes;; \
+ -*O?*) strip_trailopt 'O';; \
+ -*l) strip_trailopt 'l'; skip_next=yes;; \
+ -*l?*) strip_trailopt 'l';; \
+ -[dEDm]) skip_next=yes;; \
+ -[JT]) skip_next=yes;; \
+ esac; \
+ case $$flg in \
+ *$$target_option*) has_opt=yes; break;; \
+ esac; \
+ done; \
+ test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+libexec_PROGRAMS = file-sgi$(EXEEXT)
+subdir = plug-ins/file-sgi
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/acinclude.m4 \
+ $(top_srcdir)/m4macros/alsa.m4 \
+ $(top_srcdir)/m4macros/ax_compare_version.m4 \
+ $(top_srcdir)/m4macros/ax_cxx_compile_stdcxx.m4 \
+ $(top_srcdir)/m4macros/ax_gcc_func_attribute.m4 \
+ $(top_srcdir)/m4macros/ax_prog_cc_for_build.m4 \
+ $(top_srcdir)/m4macros/ax_prog_perl_version.m4 \
+ $(top_srcdir)/m4macros/detectcflags.m4 \
+ $(top_srcdir)/m4macros/pythondev.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+ $(ACLOCAL_M4)
+DIST_COMMON = $(srcdir)/Makefile.am $(am__DIST_COMMON)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__installdirs = "$(DESTDIR)$(libexecdir)"
+PROGRAMS = $(libexec_PROGRAMS)
+am_file_sgi_OBJECTS = sgi.$(OBJEXT) sgi-lib.$(OBJEXT)
+file_sgi_OBJECTS = $(am_file_sgi_OBJECTS)
+file_sgi_LDADD = $(LDADD)
+am__DEPENDENCIES_1 =
+file_sgi_DEPENDENCIES = $(libgimpui) $(libgimpwidgets) \
+ $(libgimpconfig) $(libgimpmath) $(libgimp) $(libgimpcolor) \
+ $(libgimpbase) $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) \
+ $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) $(file_sgi_RC)
+AM_V_lt = $(am__v_lt_@AM_V@)
+am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
+am__v_lt_0 = --silent
+am__v_lt_1 =
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo " GEN " $@;
+am__v_GEN_1 =
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 =
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
+depcomp = $(SHELL) $(top_srcdir)/depcomp
+am__maybe_remake_depfiles = depfiles
+am__depfiles_remade = ./$(DEPDIR)/sgi-lib.Po ./$(DEPDIR)/sgi.Po
+am__mv = mv -f
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+ $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+ $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) \
+ $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+ $(AM_CFLAGS) $(CFLAGS)
+AM_V_CC = $(am__v_CC_@AM_V@)
+am__v_CC_ = $(am__v_CC_@AM_DEFAULT_V@)
+am__v_CC_0 = @echo " CC " $@;
+am__v_CC_1 =
+CCLD = $(CC)
+LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+ $(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+ $(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CCLD = $(am__v_CCLD_@AM_V@)
+am__v_CCLD_ = $(am__v_CCLD_@AM_DEFAULT_V@)
+am__v_CCLD_0 = @echo " CCLD " $@;
+am__v_CCLD_1 =
+SOURCES = $(file_sgi_SOURCES)
+DIST_SOURCES = $(file_sgi_SOURCES)
+am__can_run_installinfo = \
+ case $$AM_UPDATE_INFO_DIR in \
+ n|no|NO) false;; \
+ *) (install-info --version) >/dev/null 2>&1;; \
+ esac
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+# Read a list of newline-separated strings from the standard input,
+# and print each of them once, without duplicates. Input order is
+# *not* preserved.
+am__uniquify_input = $(AWK) '\
+ BEGIN { nonempty = 0; } \
+ { items[$$0] = 1; nonempty = 1; } \
+ END { if (nonempty) { for (i in items) print i; }; } \
+'
+# Make sure the list of sources is unique. This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
+# for different programs/libraries.
+am__define_uniq_tagged_files = \
+ list='$(am__tagged_files)'; \
+ unique=`for i in $$list; do \
+ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+ done | $(am__uniquify_input)`
+ETAGS = etags
+CTAGS = ctags
+am__DIST_COMMON = $(srcdir)/Makefile.in \
+ $(top_srcdir)/build/windows/gimprc-plug-ins.rule \
+ $(top_srcdir)/depcomp
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+AA_LIBS = @AA_LIBS@
+ACLOCAL = @ACLOCAL@
+ALLOCA = @ALLOCA@
+ALL_LINGUAS = @ALL_LINGUAS@
+ALSA_CFLAGS = @ALSA_CFLAGS@
+ALSA_LIBS = @ALSA_LIBS@
+ALTIVEC_EXTRA_CFLAGS = @ALTIVEC_EXTRA_CFLAGS@
+AMTAR = @AMTAR@
+AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
+APPSTREAM_UTIL = @APPSTREAM_UTIL@
+AR = @AR@
+AS = @AS@
+ATK_CFLAGS = @ATK_CFLAGS@
+ATK_LIBS = @ATK_LIBS@
+ATK_REQUIRED_VERSION = @ATK_REQUIRED_VERSION@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+BABL_CFLAGS = @BABL_CFLAGS@
+BABL_LIBS = @BABL_LIBS@
+BABL_REQUIRED_VERSION = @BABL_REQUIRED_VERSION@
+BUG_REPORT_URL = @BUG_REPORT_URL@
+BUILD_EXEEXT = @BUILD_EXEEXT@
+BUILD_OBJEXT = @BUILD_OBJEXT@
+BZIP2_LIBS = @BZIP2_LIBS@
+CAIRO_CFLAGS = @CAIRO_CFLAGS@
+CAIRO_LIBS = @CAIRO_LIBS@
+CAIRO_PDF_CFLAGS = @CAIRO_PDF_CFLAGS@
+CAIRO_PDF_LIBS = @CAIRO_PDF_LIBS@
+CAIRO_PDF_REQUIRED_VERSION = @CAIRO_PDF_REQUIRED_VERSION@
+CAIRO_REQUIRED_VERSION = @CAIRO_REQUIRED_VERSION@
+CATALOGS = @CATALOGS@
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+CC_FOR_BUILD = @CC_FOR_BUILD@
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+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CPPFLAGS_FOR_BUILD = @CPPFLAGS_FOR_BUILD@
+CPP_FOR_BUILD = @CPP_FOR_BUILD@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+CXXDEPMODE = @CXXDEPMODE@
+CXXFLAGS = @CXXFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DATADIRNAME = @DATADIRNAME@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+DESKTOP_DATADIR = @DESKTOP_DATADIR@
+DESKTOP_FILE_VALIDATE = @DESKTOP_FILE_VALIDATE@
+DLLTOOL = @DLLTOOL@
+DOC_SHOOTER = @DOC_SHOOTER@
+DSYMUTIL = @DSYMUTIL@
+DUMPBIN = @DUMPBIN@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+EXEEXT = @EXEEXT@
+FGREP = @FGREP@
+FILE_AA = @FILE_AA@
+FILE_EXR = @FILE_EXR@
+FILE_HEIF = @FILE_HEIF@
+FILE_JP2_LOAD = @FILE_JP2_LOAD@
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+FILE_MNG = @FILE_MNG@
+FILE_PDF_SAVE = @FILE_PDF_SAVE@
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+FREETYPE_LIBS = @FREETYPE_LIBS@
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+GIMP_INTERFACE_AGE = @GIMP_INTERFACE_AGE@
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+GIMP_MINOR_VERSION = @GIMP_MINOR_VERSION@
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+GIMP_MODULES = @GIMP_MODULES@
+GIMP_PACKAGE_REVISION = @GIMP_PACKAGE_REVISION@
+GIMP_PKGCONFIG_VERSION = @GIMP_PKGCONFIG_VERSION@
+GIMP_PLUGINS = @GIMP_PLUGINS@
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+GTKDOC_MKPDF = @GTKDOC_MKPDF@
+GTKDOC_REBASE = @GTKDOC_REBASE@
+GTK_CFLAGS = @GTK_CFLAGS@
+GTK_LIBS = @GTK_LIBS@
+GTK_MAC_INTEGRATION_CFLAGS = @GTK_MAC_INTEGRATION_CFLAGS@
+GTK_MAC_INTEGRATION_LIBS = @GTK_MAC_INTEGRATION_LIBS@
+GTK_REQUIRED_VERSION = @GTK_REQUIRED_VERSION@
+GTK_UPDATE_ICON_CACHE = @GTK_UPDATE_ICON_CACHE@
+GUDEV_CFLAGS = @GUDEV_CFLAGS@
+GUDEV_LIBS = @GUDEV_LIBS@
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+HARFBUZZ_REQUIRED_VERSION = @HARFBUZZ_REQUIRED_VERSION@
+HAVE_CXX14 = @HAVE_CXX14@
+HAVE_FINITE = @HAVE_FINITE@
+HAVE_ISFINITE = @HAVE_ISFINITE@
+HAVE_VFORK = @HAVE_VFORK@
+HOST_GLIB_COMPILE_RESOURCES = @HOST_GLIB_COMPILE_RESOURCES@
+HTML_DIR = @HTML_DIR@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+INSTOBJEXT = @INSTOBJEXT@
+INTLLIBS = @INTLLIBS@
+INTLTOOL_EXTRACT = @INTLTOOL_EXTRACT@
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+INTLTOOL_V_MERGE = @INTLTOOL_V_MERGE@
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+INTLTOOL__v_MERGE_0 = @INTLTOOL__v_MERGE_0@
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+LCMS_CFLAGS = @LCMS_CFLAGS@
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+LD = @LD@
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+LDFLAGS_FOR_BUILD = @LDFLAGS_FOR_BUILD@
+LIBBACKTRACE_LIBS = @LIBBACKTRACE_LIBS@
+LIBHEIF_CFLAGS = @LIBHEIF_CFLAGS@
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+LIBLZMA_REQUIRED_VERSION = @LIBLZMA_REQUIRED_VERSION@
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+LIBOBJS = @LIBOBJS@
+LIBPNG_REQUIRED_VERSION = @LIBPNG_REQUIRED_VERSION@
+LIBS = @LIBS@
+LIBTOOL = @LIBTOOL@
+LIBUNWIND_CFLAGS = @LIBUNWIND_CFLAGS@
+LIBUNWIND_LIBS = @LIBUNWIND_LIBS@
+LIBUNWIND_REQUIRED_VERSION = @LIBUNWIND_REQUIRED_VERSION@
+LIPO = @LIPO@
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+LTLIBOBJS = @LTLIBOBJS@
+LT_CURRENT_MINUS_AGE = @LT_CURRENT_MINUS_AGE@
+LT_SYS_LIBRARY_PATH = @LT_SYS_LIBRARY_PATH@
+LT_VERSION_INFO = @LT_VERSION_INFO@
+LZMA_CFLAGS = @LZMA_CFLAGS@
+LZMA_LIBS = @LZMA_LIBS@
+MAIL = @MAIL@
+MAINT = @MAINT@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MIME_INFO_CFLAGS = @MIME_INFO_CFLAGS@
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+MIME_TYPES = @MIME_TYPES@
+MKDIR_P = @MKDIR_P@
+MKINSTALLDIRS = @MKINSTALLDIRS@
+MMX_EXTRA_CFLAGS = @MMX_EXTRA_CFLAGS@
+MNG_CFLAGS = @MNG_CFLAGS@
+MNG_LIBS = @MNG_LIBS@
+MSGFMT = @MSGFMT@
+MSGFMT_OPTS = @MSGFMT_OPTS@
+MSGMERGE = @MSGMERGE@
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+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -f ./$(DEPDIR)/sgi-lib.Po
+ -rm -f ./$(DEPDIR)/sgi.Po
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-libexecPROGRAMS
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+ clean-generic clean-libexecPROGRAMS clean-libtool \
+ cscopelist-am ctags ctags-am distclean distclean-compile \
+ distclean-generic distclean-libtool distclean-tags distdir dvi \
+ dvi-am html html-am info info-am install install-am \
+ install-data install-data-am install-dvi install-dvi-am \
+ install-exec install-exec-am 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;
+}