[vkgen] Add support for array element data

While I wound up not needing it in the end, it's now possible to specify
extra data for array element parsing.

libs/video/renderer/vulkan/vkgen/vkfieldtype.h

@@ -10,10 +10,12 @@
 	string parse_type;
 	string type;
 	string parser;
+	string data;
 }
 +fieldType:(PLItem *)item;
 -initWithItem:(PLItem *)item;
 -writeParseData;
+-(string)type;
 -(string)exprType;
 -(string)parseType;
 +(string)anyType;

libs/video/renderer/vulkan/vkgen/vkfieldtype.r

@@ -31,6 +31,7 @@ parseItemType (PLItem *item)
 {
 	str_free (type);
 	str_free (parser);
+	str_free (data);
 	str_free (parse_type);
 	[super dealloc];
 }
@@ -52,6 +53,7 @@ parseItemType (PLItem *item)
 		parse_type = str_hold (parseItemType(typeItem));
 		type = str_hold ([[item getObjectForKey:"type"] string]);
 		parser = str_hold ([[item getObjectForKey:"parser"] string]);
+		data = str_hold ([[item getObjectForKey:"data"] string]);
 	}
 
 	return self;
@@ -62,9 +64,19 @@ parseItemType (PLItem *item)
 	fprintf (output_file, "\t%s,\n", parse_type);
 	fprintf (output_file, "\tsizeof (%s),\n", type);
 	fprintf (output_file, "\t%s,\n", parser);
+	if (data) {
+		fprintf (output_file, "\t&%s,\n", data);
+	} else {
+		fprintf (output_file, "\t0,\n");
+	}
 	return self;
 }
 
+-(string) type
+{
+	return type;
+}
+
 -(string) exprType
 {
 	return "&" + type + "_type";

libs/video/renderer/vulkan/vkparse.c

@@ -115,6 +115,7 @@ typedef struct parse_single_s {
 	pltype_t    type;
 	size_t      stride;
 	plparser_t  parser;
+	void       *data;
 	size_t      value_offset;
 } parse_single_t;
 
@@ -122,6 +123,7 @@ typedef struct parse_array_s {
 	pltype_t    type;
 	size_t      stride;
 	plparser_t  parser;
+	void       *data;
 	size_t      value_offset;
 	size_t      size_offset;
 } parse_array_t;
@@ -130,6 +132,7 @@ typedef struct parse_fixed_array_s {
 	pltype_t    type;
 	size_t      stride;
 	plparser_t  parser;
+	void       *data;
 	size_t      size;
 } parse_fixed_array_t;
 
@@ -341,7 +344,7 @@ parse_array (const plfield_t *field, const plitem_t *item,
 		array->stride,
 		vkparse_alloc,
 		array->parser,
-		0,
+		array->data,
 	};
 	plfield_t   f = { 0, 0, 0, 0, &element };
 
@@ -376,7 +379,7 @@ parse_fixed_array (const plfield_t *field, const plitem_t *item,
 		array->stride,
 		vkparse_alloc,
 		array->parser,
-		0,
+		array->data,
 	};
 	plfield_t   f = { 0, 0, 0, 0, &element };