pdf: Rename mupdf directory.

1 files changed, 115 insertions, 0 deletions

diff --git a/pdf/pdf_xobject.c b/pdf/pdf_xobject.c
new file mode 100644
index 00000000..44389efc
--- /dev/null
+++ b/pdf/pdf_xobject.c
@@ -0,0 +1,115 @@
+#include "fitz.h"
+#include "mupdf.h"
+
+fz_error
+pdf_loadxobject(pdf_xobject **formp, pdf_xref *xref, fz_obj *dict)
+{
+	fz_error error;
+	pdf_xobject *form;
+	fz_obj *obj;
+
+	if ((*formp = pdf_finditem(xref->store, pdf_dropxobject, dict)))
+	{
+		pdf_keepxobject(*formp);
+		return fz_okay;
+	}
+
+	form = fz_malloc(sizeof(pdf_xobject));
+	form->refs = 1;
+	form->resources = nil;
+	form->contents = nil;
+	form->colorspace = nil;
+
+	pdf_logrsrc("load xobject (%d %d R) ptr=%p {\n", fz_tonum(dict), fz_togen(dict), form);
+
+	/* Store item immediately, to avoid possible recursion if objects refer back to this one */
+	pdf_storeitem(xref->store, pdf_keepxobject, pdf_dropxobject, dict, form);
+
+	obj = fz_dictgets(dict, "BBox");
+	form->bbox = pdf_torect(obj);
+
+	pdf_logrsrc("bbox [%g %g %g %g]\n",
+		form->bbox.x0, form->bbox.y0,
+		form->bbox.x1, form->bbox.y1);
+
+	obj = fz_dictgets(dict, "Matrix");
+	if (obj)
+		form->matrix = pdf_tomatrix(obj);
+	else
+		form->matrix = fz_identity;
+
+	pdf_logrsrc("matrix [%g %g %g %g %g %g]\n",
+		form->matrix.a, form->matrix.b,
+		form->matrix.c, form->matrix.d,
+		form->matrix.e, form->matrix.f);
+
+	form->isolated = 0;
+	form->knockout = 0;
+	form->transparency = 0;
+
+	obj = fz_dictgets(dict, "Group");
+	if (obj)
+	{
+		fz_obj *attrs = obj;
+
+		form->isolated = fz_tobool(fz_dictgets(attrs, "I"));
+		form->knockout = fz_tobool(fz_dictgets(attrs, "K"));
+
+		obj = fz_dictgets(attrs, "S");
+		if (fz_isname(obj) && !strcmp(fz_toname(obj), "Transparency"))
+			form->transparency = 1;
+
+		obj = fz_dictgets(attrs, "CS");
+		if (obj)
+		{
+			error = pdf_loadcolorspace(&form->colorspace, xref, obj);
+			if (error)
+				fz_catch(error, "cannot load xobject colorspace");
+			pdf_logrsrc("colorspace %s\n", form->colorspace->name);
+		}
+	}
+
+	pdf_logrsrc("isolated %d\n", form->isolated);
+	pdf_logrsrc("knockout %d\n", form->knockout);
+	pdf_logrsrc("transparency %d\n", form->transparency);
+
+	form->resources = fz_dictgets(dict, "Resources");
+	if (form->resources)
+		fz_keepobj(form->resources);
+
+	error = pdf_loadstream(&form->contents, xref, fz_tonum(dict), fz_togen(dict));
+	if (error)
+	{
+		pdf_removeitem(xref->store, pdf_dropxobject, dict);
+		pdf_dropxobject(form);
+		return fz_rethrow(error, "cannot load xobject content stream (%d %d R)", fz_tonum(dict), fz_togen(dict));
+	}
+
+	pdf_logrsrc("stream %d bytes\n", form->contents->len);
+	pdf_logrsrc("}\n");
+
+	*formp = form;
+	return fz_okay;
+}
+
+pdf_xobject *
+pdf_keepxobject(pdf_xobject *xobj)
+{
+	xobj->refs ++;
+	return xobj;
+}
+
+void
+pdf_dropxobject(pdf_xobject *xobj)
+{
+	if (xobj && --xobj->refs == 0)
+	{
+		if (xobj->colorspace)
+			fz_dropcolorspace(xobj->colorspace);
+		if (xobj->resources)
+			fz_dropobj(xobj->resources);
+		if (xobj->contents)
+			fz_dropbuffer(xobj->contents);
+		fz_free(xobj);
+	}
+}