[nostalgia] Move pack transforms to modules

src/nostalgia/appmodules/CMakeLists.txt

@@ -10,6 +10,7 @@ endif()
 target_link_libraries(
 	NostalgiaAppModules PUBLIC
 		NostalgiaCore
+		NostalgiaFoundation
 )
 
 install(

src/nostalgia/core/module.cpp

@@ -2,14 +2,19 @@
  * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
  */
 
+#include <ox/model/model.hpp>
+
 #include <nostalgia/foundation/module.hpp>
 
+#include "gfx.hpp"
 #include "typeconv.hpp"
 
 #include "module.hpp"
 
 namespace nostalgia::core {
 
+CoreModule CoreModule::mod;
+
 ox::Vector<foundation::BaseConverter*> CoreModule::converters() const noexcept {
 	return {
 		&nostalgiaPaletteToPaletteConverter,
@@ -18,6 +23,19 @@ ox::Vector<foundation::BaseConverter*> CoreModule::converters() const noexcept {
 	};
 }
 
-CoreModule CoreModule::mod;
+ox::Vector<foundation::PackTransform> CoreModule::packTransforms() const noexcept {
+	return {
+		// convert tilesheets to CompactTileSheets
+		[](foundation::Context *ctx, ox::Buffer *buff) -> ox::Error {
+			oxRequire(hdr, ox::readClawHeader(*buff));
+			const auto typeId = ox::buildTypeId(hdr.typeName, hdr.typeVersion);
+			if (typeId == ox::buildTypeId<TileSheet>() ||
+			    typeId == ox::buildTypeId<NostalgiaGraphic>()) {
+				oxReturnError(foundation::convertBuffToBuff<core::CompactTileSheet>(ctx, *buff, ox::ClawFormat::Metal).moveTo(buff));
+			}
+			return {};
+		},
+	};
+}
 
 }

src/nostalgia/core/module.hpp

@@ -20,6 +20,8 @@ class CoreModule: public foundation::Module {
 		static CoreModule mod;
 		[[nodiscard]]
 		ox::Vector<foundation::BaseConverter*> converters() const noexcept override;
+		[[nodiscard]]
+		ox::Vector<foundation::PackTransform> packTransforms() const noexcept override;
 };
 
 }

src/nostalgia/foundation/context.hpp

@@ -12,6 +12,9 @@
 
 namespace nostalgia::foundation {
 
+class Context;
+using PackTransform = ox::Error(*)(Context*, ox::Buffer *clawData);
+
 class Context {
 	public:
 		ox::UPtr<ox::FileSystem> rom;
@@ -19,6 +22,7 @@ class Context {
 #ifndef OX_BARE_METAL
 		AssetManager assetManager;
 		ox::Vector<class BaseConverter*> converters;
+		ox::Vector<PackTransform> packTransforms;
 #else
 		std::size_t preloadSectionOffset = 0;
 #endif

src/nostalgia/foundation/foundation.hpp

@@ -11,18 +11,22 @@
 
 namespace nostalgia::foundation {
 
-template<typename Context = foundation::Context>
-ox::UPtr<Context> init(ox::UPtr<ox::FileSystem> &&fs, ox::CRStringView appName) noexcept {
-	auto ctx = ox::make_unique<Context>();
+template<typename Ctx = foundation::Context>
+ox::UPtr<Ctx> init(ox::UPtr<ox::FileSystem> &&fs, ox::CRStringView appName) noexcept {
+	auto ctx = ox::make_unique<Ctx>();
 	ctx->rom = std::move(fs);
 	ctx->appName = appName;
 	auto mods = modules();
 	if (mods) {
 		for (auto &mod : *mods) {
-			// load type converters
+			// register type converters
 			for (auto c : mod->converters()) {
 				ctx->converters.emplace_back(c);
 			}
+			// register pack transforms
+			for (auto c : mod->packTransforms()) {
+				ctx->packTransforms.emplace_back(c);
+			}
 		}
 	}
 	return ctx;

src/nostalgia/foundation/module.cpp

@@ -6,26 +6,15 @@
 
 namespace nostalgia::foundation {
 
-[[nodiscard]]
-static ox::Vector<const Module*> *moduleRegistry() noexcept {
-#ifdef OX_BARE_METAL
-	return nullptr;
-#else
-	static ox::Vector<const Module*> modules;
-	return &modules;
-#endif
-}
+static ox::Vector<const Module*> mods;
 
 void registerModule(const Module *mod) noexcept {
-	auto mods = moduleRegistry();
-	if (mods) {
-		mods->emplace_back(mod);
-	}
+	mods.emplace_back(mod);
 }
 
 [[nodiscard]]
 const ox::Vector<const Module*> *modules() noexcept {
-	return moduleRegistry();
+	return &mods;
 }
 
 
@@ -33,4 +22,8 @@ ox::Vector<foundation::BaseConverter*> Module::converters() const noexcept {
 	return {};
 }
 
+ox::Vector<PackTransform> Module::packTransforms() const noexcept {
+	return {};
+}
+
 }

src/nostalgia/foundation/module.hpp

@@ -20,6 +20,8 @@ class Module {
 		constexpr virtual ~Module() noexcept = default;
 		[[nodiscard]]
 		virtual ox::Vector<foundation::BaseConverter*> converters() const noexcept;
+		[[nodiscard]]
+		virtual ox::Vector<PackTransform> packTransforms() const noexcept;
 };
 
 void registerModule(const Module *mod) noexcept;

src/nostalgia/tools/pack/pack.cpp

@@ -8,7 +8,6 @@
 #include <ox/model/modelvalue.hpp>
 
 #include <nostalgia/core/gfx.hpp>
-#include <nostalgia/core/typeconv.hpp>
 #include <nostalgia/core/typestore.hpp>
 #include <nostalgia/foundation/media.hpp>
 
@@ -42,7 +41,7 @@ static ox::Error pathToInode(ox::FileSystem *dest, ox::ModelObject *obj) noexcep
  * @param buff buffer holding file
  * @return error
  */
-static ox::Error transformObj(ox::FileSystem *dest, ox::ModelObject *obj) noexcept {
+static ox::Error transformFileAddresses(ox::FileSystem *dest, ox::ModelObject *obj) noexcept {
 	for (auto &f : *obj) {
 		auto &v = f->value;
 		if (v.type() != ox::ModelValue::Type::Object) {
@@ -52,31 +51,30 @@ static ox::Error transformObj(ox::FileSystem *dest, ox::ModelObject *obj) noexce
 		if (o.typeName() == "net.drinkingtea.ox.FileAddress" && o.typeVersion() == 1) {
 			oxReturnError(pathToInode(dest, &o));
 		} else {
-			oxReturnError(transformObj(dest, &o));
+			oxReturnError(transformFileAddresses(dest, &o));
 		}
 	}
 	return {};
 }
 
 static ox::Error doTransformations(foundation::Context *ctx, core::TypeStore *ts, ox::FileSystem *dest, ox::CRStringView filePath) noexcept {
-	if (endsWith(filePath, ".ng") || endsWith(filePath, ".npal")) {
-		// load file
-		oxRequire(s, dest->stat(filePath));
-		oxRequireM(buff, dest->read(s.inode));
-		if (endsWith(filePath, ".ng")) {
-			oxReturnError(foundation::convertBuffToBuff<core::CompactTileSheet>(ctx, buff, ox::ClawFormat::Metal).moveTo(&buff));
-		}
-		oxRequireM(obj, ox::readClaw(ts, buff));
-		// do transformations
-		oxReturnError(transformObj(dest, &obj));
-		oxReturnError(ox::writeClaw(&obj).moveTo(&buff));
-		// write file to dest
-		oxReturnError(dest->write(s.inode, buff.data(), buff.size()));
+	// load file
+	oxRequire(s, dest->stat(filePath));
+	// do transformations
+	oxRequireM(buff, dest->read(s.inode));
+	for (auto tr : ctx->packTransforms) {
+		oxReturnError(tr(ctx, &buff));
 	}
+	// transform FileAddresses
+	oxRequireM(obj, ox::readClaw(ts, buff));
+	oxReturnError(transformFileAddresses(dest, &obj));
+	oxReturnError(ox::writeClaw(&obj).moveTo(&buff));
+	// write file to dest
+	oxReturnError(dest->write(s.inode, buff.data(), buff.size()));
 	return {};
 }
 
-// claw file transformations are broken out because path to inode
+// claw file transformations are broken out from copy because path to inode
 // transformations need to be done after the copy to the new FS is complete
 static ox::Error transformClaw(foundation::Context *ctx, core::TypeStore *ts, ox::FileSystem *dest, ox::CRStringView path) noexcept {
 	// copy