popplerload hacking
metadata, relative filenames
This commit is contained in:
John Cupitt
parent
69c2fe00f7
commit
be574be539
13
TODO
13
TODO
@ -1,10 +1,17 @@
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- pooperload URI generation needs fixing, it currently does not support
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relative paths
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- popplerload generates ARGB? need to do our own byteswap
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- add tests for popplerload, check docs, update c++
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- add load PDF from buffer
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- add file type sniffing .. "%PDF" should be enough
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- metadata: xres/yres
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- trim page edges? we often have black now
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- does poppler support other formats? SVG / PS / EPS
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- new vips_reduce:
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affine
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@ -25,7 +25,6 @@ TARGET_DIR=$(HTML_DIR)/$(DOC_MODULE)
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SETUP_FILES = \
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$(content_files) \
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$(expand_content_files) \
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$(DOC_MAIN_SGML_FILE) \
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$(DOC_MODULE)-sections.txt \
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$(DOC_MODULE)-overrides.txt
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@ -87,7 +86,7 @@ GTK_DOC_V_SETUP_0=@echo " DOC Preparing build";
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setup-build.stamp:
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-$(GTK_DOC_V_SETUP)if test "$(abs_srcdir)" != "$(abs_builddir)" ; then \
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files=`echo $(SETUP_FILES) $(DOC_MODULE).types`; \
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files=`echo $(SETUP_FILES) $(expand_content_files) $(DOC_MODULE).types`; \
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if test "x$$files" != "x" ; then \
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for file in $$files ; do \
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destdir=`dirname $(abs_builddir)/$$file`; \
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@ -119,7 +118,7 @@ scan-build.stamp: setup-build.stamp $(HFILE_GLOB) $(CFILE_GLOB)
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$(GTK_DOC_V_INTROSPECT)if grep -l '^..*$$' $(DOC_MODULE).types > /dev/null 2>&1 ; then \
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scanobj_options=""; \
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gtkdoc-scangobj 2>&1 --help | grep >/dev/null "\-\-verbose"; \
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if test "$$?" = "0"; then \
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if test "$(?)" = "0"; then \
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if test "x$(V)" = "x1"; then \
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scanobj_options="--verbose"; \
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fi; \
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@ -163,17 +162,17 @@ GTK_DOC_V_XREF=$(GTK_DOC_V_XREF_$(V))
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GTK_DOC_V_XREF_=$(GTK_DOC_V_XREF_$(AM_DEFAULT_VERBOSITY))
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GTK_DOC_V_XREF_0=@echo " DOC Fixing cross-references";
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html-build.stamp: sgml.stamp $(DOC_MAIN_SGML_FILE) $(content_files) $(expand_content_files)
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html-build.stamp: sgml.stamp $(DOC_MAIN_SGML_FILE) $(content_files)
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$(GTK_DOC_V_HTML)rm -rf html && mkdir html && \
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mkhtml_options=""; \
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gtkdoc-mkhtml 2>&1 --help | grep >/dev/null "\-\-verbose"; \
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if test "$$?" = "0"; then \
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if test "$(?)" = "0"; then \
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if test "x$(V)" = "x1"; then \
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mkhtml_options="$$mkhtml_options --verbose"; \
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fi; \
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fi; \
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gtkdoc-mkhtml 2>&1 --help | grep >/dev/null "\-\-path"; \
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if test "$$?" = "0"; then \
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if test "$(?)" = "0"; then \
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mkhtml_options="$$mkhtml_options --path=\"$(abs_srcdir)\""; \
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fi; \
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cd html && gtkdoc-mkhtml $$mkhtml_options $(MKHTML_OPTIONS) $(DOC_MODULE) ../$(DOC_MAIN_SGML_FILE)
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@ -195,11 +194,11 @@ GTK_DOC_V_PDF=$(GTK_DOC_V_PDF_$(V))
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GTK_DOC_V_PDF_=$(GTK_DOC_V_PDF_$(AM_DEFAULT_VERBOSITY))
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GTK_DOC_V_PDF_0=@echo " DOC Building PDF";
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pdf-build.stamp: sgml.stamp $(DOC_MAIN_SGML_FILE) $(content_files) $(expand_content_files)
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pdf-build.stamp: sgml.stamp $(DOC_MAIN_SGML_FILE) $(content_files)
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$(GTK_DOC_V_PDF)rm -f $(DOC_MODULE).pdf && \
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mkpdf_options=""; \
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gtkdoc-mkpdf 2>&1 --help | grep >/dev/null "\-\-verbose"; \
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if test "$$?" = "0"; then \
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if test "$(?)" = "0"; then \
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if test "x$(V)" = "x1"; then \
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mkpdf_options="$$mkpdf_options --verbose"; \
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fi; \
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@ -224,15 +223,12 @@ clean-local:
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@if echo $(SCAN_OPTIONS) | grep -q "\-\-rebuild-types" ; then \
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rm -f $(DOC_MODULE).types; \
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fi
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@if echo $(SCAN_OPTIONS) | grep -q "\-\-rebuild-sections" ; then \
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rm -f $(DOC_MODULE)-sections.txt; \
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fi
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distclean-local:
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@rm -rf xml html $(REPORT_FILES) $(DOC_MODULE).pdf \
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$(DOC_MODULE)-decl-list.txt $(DOC_MODULE)-decl.txt
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@if test "$(abs_srcdir)" != "$(abs_builddir)" ; then \
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rm -f $(SETUP_FILES) $(DOC_MODULE).types; \
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rm -f $(SETUP_FILES) $(expand_content_files) $(DOC_MODULE).types; \
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fi
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maintainer-clean-local:
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@ -45,6 +45,7 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <vips/vips.h>
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#include <vips/buf.h>
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@ -110,15 +111,38 @@ vips_foreign_load_poppler_get_flags( VipsForeignLoad *load )
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return( VIPS_FOREIGN_PARTIAL );
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}
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/* String-based metadatra fields we extract.
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*/
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typedef struct _VipsForeignLoadPopperMetadata {
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char *(*poppler_fetch)( PopplerDocument *doc );
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char *field;
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} VipsForeignLoadPopperMetadata;
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static VipsForeignLoadPopperMetadata vips_foreign_load_poppler_metadata[] = {
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{ poppler_document_get_title, "poppler-title" },
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{ poppler_document_get_author, "poppler-author" },
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{ poppler_document_get_subject, "poppler-subject" },
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{ poppler_document_get_keywords, "poppler-keywords" },
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{ poppler_document_get_creator, "poppler-creator" },
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{ poppler_document_get_producer, "poppler-producer" },
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{ poppler_document_get_metadata, "poppler-metadata" },
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};
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static int n_metadata = VIPS_NUMBER( vips_foreign_load_poppler_metadata );
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static void
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vips_foreign_load_poppler_parse( VipsForeignLoadPoppler *poppler,
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VipsImage *out )
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{
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PopplerRectangle crop_box;
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double width;
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double height;
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int i;
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char *str;
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poppler_page_get_size( poppler->page, &width, &height );
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poppler_page_get_crop_box( poppler->page, &crop_box );
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vips_image_init_fields( out,
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width * poppler->scale, height * poppler->scale,
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4, VIPS_FORMAT_UCHAR,
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@ -129,6 +153,21 @@ vips_foreign_load_poppler_parse( VipsForeignLoadPoppler *poppler,
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/* We render to a linecache, so fat strips work well.
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*/
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vips_image_pipelinev( out, VIPS_DEMAND_STYLE_FATSTRIP, NULL );
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/* Extract and attach metadata.
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*/
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vips_image_set_int( out, "poppler-n_pages",
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poppler_document_get_n_pages( poppler->doc ) );
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for( i = 0; i < n_metadata; i++ ) {
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VipsForeignLoadPopperMetadata *metadata =
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&vips_foreign_load_poppler_metadata[i];
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if( (str = metadata->poppler_fetch( poppler->doc )) ) {
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vips_image_set_string( out, metadata->field, str );
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g_free( str );
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}
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}
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}
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static int
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@ -137,11 +176,24 @@ vips_foreign_load_poppler_header( VipsForeignLoad *load )
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VipsObjectClass *class = VIPS_OBJECT_GET_CLASS( load );
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VipsForeignLoadPoppler *poppler = (VipsForeignLoadPoppler *) load;
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char *path;
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GError *error = NULL;
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poppler->scale = poppler->dpi / 72.0;
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poppler->uri = g_strdup_printf( "file://%s", poppler->filename );
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/* We need an absolute path for a URI.
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*/
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if( !(path = realpath( poppler->filename, NULL )) ) {
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vips_error_system( errno, class->nickname,
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"%s", _( "unable to form filename" ) );
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return( -1 );
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}
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if( !(poppler->uri = g_filename_to_uri( path, NULL, &error )) ) {
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free( path );
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vips_g_error( &error );
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return( -1 );
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}
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free( path );
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if( !(poppler->doc = poppler_document_new_from_file(
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poppler->uri, NULL, &error )) ) {
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