Add context to mupdf.

Huge pervasive change to lots of files, adding a context for exception
handling and allocation.

In time we'll move more statics into there.

Also fix some for(i = 0; i < function(...); i++) calls.

1 files changed, 51 insertions, 44 deletions

diff --git a/pdf/pdf_nametree.c b/pdf/pdf_nametree.c
index e2b3e160..838caa94 100644
--- a/pdf/pdf_nametree.c
+++ b/pdf/pdf_nametree.c
@@ -2,44 +2,44 @@
 #include "mupdf.h"
 
 static fz_obj *
-pdf_lookup_name_imp(fz_obj *node, fz_obj *needle)
+pdf_lookup_name_imp(fz_context *ctx, fz_obj *node, fz_obj *needle)
 {
-	fz_obj *kids = fz_dict_gets(node, "Kids");
-	fz_obj *names = fz_dict_gets(node, "Names");
+	fz_obj *kids = fz_dict_gets(ctx, node, "Kids");
+	fz_obj *names = fz_dict_gets(ctx, node, "Names");
 
-	if (fz_is_array(kids))
+	if (fz_is_array(ctx, kids))
 	{
 		int l = 0;
-		int r = fz_array_len(kids) - 1;
+		int r = fz_array_len(ctx, kids) - 1;
 
 		while (l <= r)
 		{
 			int m = (l + r) >> 1;
-			fz_obj *kid = fz_array_get(kids, m);
-			fz_obj *limits = fz_dict_gets(kid, "Limits");
-			fz_obj *first = fz_array_get(limits, 0);
-			fz_obj *last = fz_array_get(limits, 1);
+			fz_obj *kid = fz_array_get(ctx, kids, m);
+			fz_obj *limits = fz_dict_gets(ctx, kid, "Limits");
+			fz_obj *first = fz_array_get(ctx, limits, 0);
+			fz_obj *last = fz_array_get(ctx, limits, 1);
 
 			if (fz_objcmp(needle, first) < 0)
 				r = m - 1;
 			else if (fz_objcmp(needle, last) > 0)
 				l = m + 1;
 			else
-				return pdf_lookup_name_imp(kid, needle);
+			return pdf_lookup_name_imp(ctx, kid, needle);
 		}
 	}
 
-	if (fz_is_array(names))
+	if (fz_is_array(ctx, names))
 	{
 		int l = 0;
-		int r = (fz_array_len(names) / 2) - 1;
+		int r = (fz_array_len(ctx, names) / 2) - 1;
 
 		while (l <= r)
 		{
 			int m = (l + r) >> 1;
 			int c;
-			fz_obj *key = fz_array_get(names, m * 2);
-			fz_obj *val = fz_array_get(names, m * 2 + 1);
+			fz_obj *key = fz_array_get(ctx, names, m * 2);
+			fz_obj *val = fz_array_get(ctx, names, m * 2 + 1);
 
 			c = fz_objcmp(needle, key);
 			if (c < 0)
@@ -57,34 +57,38 @@ pdf_lookup_name_imp(fz_obj *node, fz_obj *needle)
 fz_obj *
 pdf_lookup_name(pdf_xref *xref, char *which, fz_obj *needle)
 {
-	fz_obj *root = fz_dict_gets(xref->trailer, "Root");
-	fz_obj *names = fz_dict_gets(root, "Names");
-	fz_obj *tree = fz_dict_gets(names, which);
-	return pdf_lookup_name_imp(tree, needle);
+	fz_context *ctx = xref->ctx;
+
+	fz_obj *root = fz_dict_gets(ctx, xref->trailer, "Root");
+	fz_obj *names = fz_dict_gets(ctx, root, "Names");
+	fz_obj *tree = fz_dict_gets(ctx, names, which);
+	return pdf_lookup_name_imp(ctx, tree, needle);
 }
 
 fz_obj *
 pdf_lookup_dest(pdf_xref *xref, fz_obj *needle)
 {
-	fz_obj *root = fz_dict_gets(xref->trailer, "Root");
-	fz_obj *dests = fz_dict_gets(root, "Dests");
-	fz_obj *names = fz_dict_gets(root, "Names");
+	fz_context *ctx = xref->ctx;
+
+	fz_obj *root = fz_dict_gets(ctx, xref->trailer, "Root");
+	fz_obj *dests = fz_dict_gets(ctx, root, "Dests");
+	fz_obj *names = fz_dict_gets(ctx, root, "Names");
 	fz_obj *dest = NULL;
 
 	/* PDF 1.1 has destinations in a dictionary */
 	if (dests)
 	{
-		if (fz_is_name(needle))
-			return fz_dict_get(dests, needle);
+		if (fz_is_name(ctx, needle))
+			return fz_dict_get(ctx, dests, needle);
 		else
-			return fz_dict_gets(dests, fz_to_str_buf(needle));
+			return fz_dict_gets(ctx, dests, fz_to_str_buf(ctx, needle));
 	}
 
 	/* PDF 1.2 has destinations in a name tree */
 	if (names && !dest)
 	{
-		fz_obj *tree = fz_dict_gets(names, "Dests");
-		return pdf_lookup_name_imp(tree, needle);
+		fz_obj *tree = fz_dict_gets(ctx, names, "Dests");
+		return pdf_lookup_name_imp(ctx, tree, needle);
 	}
 
 	return NULL;
@@ -93,31 +97,32 @@ pdf_lookup_dest(pdf_xref *xref, fz_obj *needle)
 static void
 pdf_load_name_tree_imp(fz_obj *dict, pdf_xref *xref, fz_obj *node)
 {
-	fz_obj *kids = fz_dict_gets(node, "Kids");
-	fz_obj *names = fz_dict_gets(node, "Names");
+	fz_context *ctx = xref->ctx;
+	fz_obj *kids = fz_dict_gets(ctx, node, "Kids");
+	fz_obj *names = fz_dict_gets(ctx, node, "Names");
 	int i;
 
 	if (kids)
 	{
-		for (i = 0; i < fz_array_len(kids); i++)
-			pdf_load_name_tree_imp(dict, xref, fz_array_get(kids, i));
+		for (i = 0; i < fz_array_len(ctx, kids); i++)
+			pdf_load_name_tree_imp(dict, xref, fz_array_get(ctx, kids, i));
 	}
 
 	if (names)
 	{
-		for (i = 0; i + 1 < fz_array_len(names); i += 2)
+		for (i = 0; i + 1 < fz_array_len(ctx, names); i += 2)
 		{
-			fz_obj *key = fz_array_get(names, i);
-			fz_obj *val = fz_array_get(names, i + 1);
-			if (fz_is_string(key))
+			fz_obj *key = fz_array_get(ctx, names, i);
+			fz_obj *val = fz_array_get(ctx, names, i + 1);
+			if (fz_is_string(ctx, key))
 			{
-				key = pdf_to_utf8_name(key);
-				fz_dict_put(dict, key, val);
-				fz_drop_obj(key);
+				key = pdf_to_utf8_name(ctx, key);
+				fz_dict_put(ctx, dict, key, val);
+				fz_drop_obj(ctx, key);
 			}
-			else if (fz_is_name(key))
+			else if (fz_is_name(ctx, key))
 			{
-				fz_dict_put(dict, key, val);
+				fz_dict_put(ctx, dict, key, val);
 			}
 		}
 	}
@@ -126,12 +131,14 @@ pdf_load_name_tree_imp(fz_obj *dict, pdf_xref *xref, fz_obj *node)
 fz_obj *
 pdf_load_name_tree(pdf_xref *xref, char *which)
 {
-	fz_obj *root = fz_dict_gets(xref->trailer, "Root");
-	fz_obj *names = fz_dict_gets(root, "Names");
-	fz_obj *tree = fz_dict_gets(names, which);
-	if (fz_is_dict(tree))
+	fz_context *ctx = xref->ctx;
+
+	fz_obj *root = fz_dict_gets(ctx, xref->trailer, "Root");
+	fz_obj *names = fz_dict_gets(ctx, root, "Names");
+	fz_obj *tree = fz_dict_gets(ctx, names, which);
+	if (fz_is_dict(ctx, tree))
 	{
-		fz_obj *dict = fz_new_dict(100);
+		fz_obj *dict = fz_new_dict(ctx, 100);
 		pdf_load_name_tree_imp(dict, xref, tree);
 		return dict;
 	}