Merge commit '69fcd7ad1056940166a5d9524b4f03578f680834' as 'deps/oxlib'

2026-05-06 01:38:00 -05:00
parent 572b8b2c78 69fcd7ad10
commit 335a61bd79
457 changed files with 53647 additions and 0 deletions
@@ -0,0 +1,129 @@
+/*
+ * Copyright 2015 - 2025 gary@drinkingtea.net
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+#include <ox/std/buffer.hpp>
+
+#include <ox/claw/read.hpp>
+
+namespace ox {
+
+Result<StringView> readClawTypeId(BufferView const buff) noexcept {
+	auto buffRaw = buff.data();
+	auto buffLen = buff.size();
+	size_t outSz{};
+	const auto s1End = ox::strchr(buffRaw, ';', buffLen);
+	if (!s1End) {
+		return ox::Error(1, "Could not read Claw header");
+	}
+	auto const fmtSz = static_cast<std::size_t>(s1End - buffRaw) + 1;
+	buffRaw += fmtSz;
+	buffLen -= fmtSz;
+	outSz += fmtSz;
+	auto const s2End = ox::strchr(buffRaw, ';', buffLen);
+	if (!s2End) {
+		return ox::Error(2, "Could not read Claw header");
+	}
+	auto const s2Size = static_cast<std::size_t>(s2End - buffRaw) + 1;
+	buffRaw += s2Size;
+	buffLen -= s2Size;
+	outSz += s2Size;
+	auto const s3End = ox::strchr(buffRaw, ';', buffLen) + 1;
+	if (!s3End) {
+		return ox::Error(3, "Could not read Claw header");
+	}
+	auto const s3Size = static_cast<std::size_t>(s3End - buffRaw);
+	buffRaw += s3Size;
+	buffLen -= s3Size;
+	outSz += s3Size;
+	return {{buff.data() + fmtSz, outSz - fmtSz - 1}};
+}
+
+Result<ClawHeader> readClawHeader(BufferView const buff) noexcept {
+	auto buffRaw = buff.data();
+	auto buffLen = buff.size();
+	const auto s1End = ox::strchr(buffRaw, ';', buffLen);
+	if (!s1End) {
+		return ox::Error(1, "Could not read Claw header");
+	}
+	auto const s1Size = static_cast<std::size_t>(s1End - buffRaw);
+	StringView const fmt(buffRaw, s1Size);
+	buffRaw += s1Size + 1;
+	buffLen -= s1Size + 1;
+
+	auto const s2End = ox::strchr(buffRaw, ';', buffLen);
+	if (!s2End) {
+		return ox::Error(2, "Could not read Claw header");
+	}
+	auto const s2Size = static_cast<std::size_t>(s2End - buffRaw);
+	StringView const typeName(buffRaw, s2Size);
+	buffRaw += s2Size + 1;
+	buffLen -= s2Size + 1;
+
+	auto const s3End = ox::strchr(buffRaw, ';', buffLen);
+	if (!s3End) {
+		return ox::Error(3, "Could not read Claw header");
+	}
+	auto const s3Size = static_cast<std::size_t>(s3End - buffRaw);
+	StringView const versionStr(buffRaw, s3Size);
+	buffRaw += s3Size + 1;
+	buffLen -= s3Size + 1;
+	ClawHeader hdr;
+	if (fmt == "M2") {
+		hdr.fmt = ClawFormat::Metal;
+	} else if (fmt == "O1") {
+		hdr.fmt = ClawFormat::Organic;
+	} else {
+		return ox::Error(4, "Claw format does not match any supported format/version combo");
+	}
+	hdr.typeName = typeName;
+	std::ignore = ox::strToInt(versionStr).copyTo(hdr.typeVersion);
+	hdr.data = buffRaw;
+	hdr.dataSize = buffLen;
+	return hdr;
+}
+
+Result<BufferView> stripClawHeader(BufferView const buff) noexcept {
+	OX_REQUIRE(header, readClawHeader(buff));
+	return {{header.data, header.dataSize}};
+}
+
+Result<ModelObject> readClaw(TypeStore &ts, BufferView buff) noexcept {
+	OX_REQUIRE(header, readClawHeader(buff));
+	auto const [t, tdErr] = ts.getLoad(
+			header.typeName, header.typeVersion, header.typeParams);
+	if (tdErr) {
+		return ox::Error(3, "Could not load type descriptor");
+	}
+	ModelObject obj;
+	OX_RETURN_ERROR(obj.setType(t));
+	switch (header.fmt) {
+		case ClawFormat::Metal:
+		{
+			ox::BufferReader br({header.data, header.dataSize});
+			MetalClawReader reader(br);
+			OX_RETURN_ERROR(model(reader.interface(), &obj));
+			return obj;
+		}
+		case ClawFormat::Organic:
+		{
+#ifdef OX_USE_STDLIB
+			OrganicClawReader reader({header.data, header.dataSize});
+			ModelHandlerInterface handler(reader);
+			OX_RETURN_ERROR(model(&handler, &obj));
+			return obj;
+#else
+			break;
+#endif
+		}
+		case ClawFormat::None:
+			return ox::Error(1);
+	}
+	return ox::Error(1);
+}
+
+}