[vkgen] Add support for read-only values

This makes it possible to use the parser to read in certain fields, but
skip over others. The read-only is for cexpr parsing of the read-only
fields.

libs/video/renderer/vulkan/vkgen/Makemodule.am

@@ -11,6 +11,7 @@ vkgen_dat_src= \
 	libs/video/renderer/vulkan/vkgen/vkfieldcustom.r \
 	libs/video/renderer/vulkan/vkgen/vkfielddata.r \
 	libs/video/renderer/vulkan/vkgen/vkfielddef.r \
+	libs/video/renderer/vulkan/vkgen/vkfieldreadonly.r \
 	libs/video/renderer/vulkan/vkgen/vkfieldsingle.r \
 	libs/video/renderer/vulkan/vkgen/vkfieldstring.r \
 	libs/video/renderer/vulkan/vkgen/vkfieldtype.r \
@@ -53,6 +54,7 @@ EXTRA_DIST += \
 	libs/video/renderer/vulkan/vkgen/vkfieldcustom.h \
 	libs/video/renderer/vulkan/vkgen/vkfielddata.h \
 	libs/video/renderer/vulkan/vkgen/vkfielddef.h \
+	libs/video/renderer/vulkan/vkgen/vkfieldreadonly.h \
 	libs/video/renderer/vulkan/vkgen/vkfieldsingle.h \
 	libs/video/renderer/vulkan/vkgen/vkfieldstring.h \
 	libs/video/renderer/vulkan/vkgen/vkfieldtype.h \

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

@@ -6,6 +6,7 @@
 #include "vkfieldcustom.h"
 #include "vkfielddata.h"
 #include "vkfielddef.h"
+#include "vkfieldreadonly.h"
 #include "vkfieldsingle.h"
 #include "vkfieldstring.h"
 #include "vkstruct.h"
@@ -42,6 +43,8 @@
 			return [[[SingleField alloc] init:item struct:strct field:fname] autorelease];
 		case "array":
 			return [[[ArrayField alloc] init:item struct:strct field:fname] autorelease];
+		case "readonly":
+			return [[[ReadOnlyField alloc] init:item struct:strct field:fname] autorelease];
 	}
 	return nil;
 }

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

@@ -0,0 +1,14 @@
+#ifndef __renderer_vulkan_vkgen_vkfieldreadonly_h
+#define __renderer_vulkan_vkgen_vkfieldreadonly_h
+
+#include "vkfielddef.h"
+
+@class FieldType;
+
+@interface ReadOnlyField: FieldDef
+{
+	FieldType *type;
+}
+@end
+
+#endif//__renderer_vulkan_vkgen_vkfieldreadonly_h

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

@@ -0,0 +1,45 @@
+#include <PropertyList.h>
+
+#include "vkfieldreadonly.h"
+#include "vkfieldtype.h"
+#include "vkgen.h"
+#include "vktype.h"
+
+@implementation ReadOnlyField
+
+-init:(PLItem *) item struct:(Struct *)strct field:(string)fname
+{
+	self = [super init:item struct:strct field:fname];
+	if (!self) {
+		return self;
+	}
+
+	PLItem     *desc = [item getObjectForKey:"type"];
+	type = [[FieldType fieldType:[desc getObjectAtIndex:1]] retain];
+
+	value_field = [[item getObjectForKey:"value"] string];
+	return self;
+}
+
+-writeParseData
+{
+	return self;
+}
+
+-writeField
+{
+	string      parse_type = [FieldType anyType];
+	fprintf (output_file, "\t{\"%s\", 0, %s, parse_%s, 0},\n",
+			 field_name, parse_type, "ignore");
+	return self;
+}
+
+-writeSymbol
+{
+	fprintf (output_file,
+			 "\t{\"%s\", %s, (void *) field_offset (%s, %s)},\n",
+			 field_name, [type exprType], struct_name, value_field);
+	return self;
+}
+
+@end

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

@@ -14,7 +14,9 @@
 +fieldType:(PLItem *)item;
 -initWithItem:(PLItem *)item;
 -writeParseData;
+-(string)exprType;
 -(string)parseType;
++(string)anyType;
 @end
 
 string parseItemType (PLItem *item);

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

@@ -65,9 +65,24 @@ parseItemType (PLItem *item)
 	return self;
 }
 
+-(string) exprType
+{
+	return "&" + type + "_type";
+}
+
 -(string) parseType
 {
 	return parse_type;
 }
 
++(string) anyType
+{
+	string      mask = "QFMultiType"
+						" | (1 << QFString)"
+						" | (1 << QFBinary)"
+						" | (1 << QFArray)"
+						" | (1 << QFDictionary)";
+	return mask;
+}
+
 @end

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

@@ -7,3 +7,15 @@ typedef struct qfv_subpass_s {
 	vec4        color;
 	string      name;
 } qfv_subpass_t;
+
+//FIXME copy of qfv_output_t in qf_renderpass.h
+//except it doesn't really matter because a custom spec is used
+typedef struct qfv_output_s {
+	VkExtent2D  extent;
+	VkImage     image;
+	VkImageView view;
+	VkFormat    format;
+	uint32_t    frames;
+	VkImageView *view_list;
+	VkImageLayout finalLayout;
+} qfv_output_t;