57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
/*
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* Copyright 2016 - 2022 Gary Talent (gary@drinkingtea.net). All rights reserved.
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*/
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#pragma once
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#include <ox/std/defines.hpp>
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#include <ox/claw/claw.hpp>
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#include <ox/fs/fs.hpp>
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#include "context.hpp"
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#include "typeconv.hpp"
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namespace nostalgia::core {
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template<typename T>
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ox::Result<AssetRef<T>> readObj(Context *ctx, const ox::FileAddress &file, bool forceLoad = false) noexcept {
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#ifndef OX_BARE_METAL
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constexpr auto readConvert = [](const ox::Buffer &buff) -> ox::Result<T> {
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auto [obj, err] = ox::readClaw<T>(buff);
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if (err) {
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if (err != ox::Error_ClawTypeVersionMismatch && err != ox::Error_ClawTypeMismatch) {
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return err;
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}
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oxReturnError(convert(buff, T::TypeName, T::TypeVersion, &obj));
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}
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return obj;
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};
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oxRequire(path, file.getPath());
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if (forceLoad) {
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oxRequire(buff, ctx->rom->read(file));
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oxRequire(obj, readConvert(buff));
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oxRequire(cached, ctx->assetManager.template setAsset(path, obj));
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return cached;
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} else {
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auto [cached, err] = ctx->assetManager.template getAsset<T>(path);
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if (err) {
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oxRequire(buff, ctx->rom->read(file));
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oxRequire(obj, readConvert(buff));
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oxReturnError(ctx->assetManager.template setAsset(path, obj).moveTo(&cached));
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}
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return cached;
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}
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#else
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return OxError(1);
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#endif
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}
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ox::Result<ox::UniquePtr<ox::FileSystem>> loadRomFs(const char *path) noexcept;
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ox::Result<char*> loadRom(const char *path = "") noexcept;
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void unloadRom(char*) noexcept;
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}
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