Initial commit

engines/ags/engine/ac/dynobj/script_string.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "ags/engine/ac/dynobj/script_string.h"
+#include "ags/engine/ac/dynobj/dynobj_manager.h"
+#include "ags/engine/ac/string.h"
+#include "ags/shared/util/stream.h"
+#include "ags/globals.h"
+
+namespace AGS3 {
+
+using namespace AGS::Shared;
+
+const char *ScriptString::GetType() {
+	return "String";
+}
+
+int ScriptString::Dispose(void *address, bool /*force*/) {
+	delete[] (static_cast<uint8_t *>(address) - MemHeaderSz);
+	return 1;
+}
+
+size_t ScriptString::CalcSerializeSize(const void *address) {
+	const Header &hdr = GetHeader(address);
+	return hdr.Length + 1 + FileHeaderSz;
+}
+
+void ScriptString::Serialize(const void *address, Stream *out) {
+	const Header &hdr = GetHeader(address);
+	out->WriteInt32(hdr.Length);
+	out->Write(address, hdr.Length + 1); // it was writing trailing 0 for some reason
+}
+
+void ScriptString::Unserialize(int index, Stream *in, size_t /*data_sz*/) {
+	size_t len = in->ReadInt32();
+	uint8_t *buf = new uint8_t[len + 1 + MemHeaderSz];
+	Header &hdr = reinterpret_cast<Header &>(*buf);
+	hdr.Length = len;
+	char *text_ptr = reinterpret_cast<char *>(buf + MemHeaderSz);
+	in->Read(text_ptr, len + 1); // it was writing trailing 0 for some reason
+	text_ptr[len] = 0;           // for safety
+	ccRegisterUnserializedObject(index, text_ptr, this);
+}
+
+DynObjectRef ScriptString::CreateImpl(const char *text, size_t buf_len) {
+	size_t len = text ? strlen(text) : buf_len;
+	uint8_t *buf = new uint8_t[len + 1 + MemHeaderSz];
+	Header &hdr = reinterpret_cast<Header &>(*buf);
+	hdr.Length = len;
+	char *text_ptr = reinterpret_cast<char *>(buf + MemHeaderSz);
+	if (text)
+		memcpy(text_ptr, text, len + 1);
+	int32_t handle = ccRegisterManagedObject(text_ptr, &_GP(myScriptStringImpl));
+	if (handle == 0) {
+		delete[] buf;
+		return DynObjectRef();
+	}
+	return DynObjectRef(handle, text_ptr, &_GP(myScriptStringImpl));
+}
+
+} // namespace AGS3