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engines/ags/shared/script/cc_script.h

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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/>.
+ *
+ */
+
+#ifndef AGS_SHARED_SCRIPT_CC_SCRIPT_H
+#define AGS_SHARED_SCRIPT_CC_SCRIPT_H
+
+#include "common/std/memory.h"
+#include "ags/shared/core/types.h"
+
+namespace AGS3 {
+
+namespace AGS {
+namespace Shared {
+class Stream;
+}
+}
+using namespace AGS; // FIXME later
+
+struct ccScript {
+public:
+	char *globaldata;
+	int32_t globaldatasize;
+	int32_t *code;                // executable byte-code, 32-bit per op or arg
+	int32_t codesize; // TODO: find out if we can make it size_t
+	char *strings;
+	int32_t stringssize;
+	char *fixuptypes;             // global data/string area/ etc
+	int32_t *fixups;              // code array index to fixup (in ints)
+	int numfixups;
+	int importsCapacity;
+	char **imports;
+	int numimports;
+	int exportsCapacity;
+	char **exports;   // names of exports
+	int32_t *export_addr; // high byte is type; low 24-bits are offset
+	int numexports;
+	int instances;
+	// 'sections' allow the interpreter to find out which bit
+	// of the code came from header files, and which from the main file
+	char **sectionNames;
+	int32_t *sectionOffsets;
+	int numSections;
+	int capacitySections;
+
+	static ccScript *CreateFromStream(Shared::Stream *in);
+
+	ccScript();
+	ccScript(const ccScript &src);
+	virtual ~ccScript(); // there are few derived classes, so dtor should be virtual
+
+	// write the script to disk (after compiling)
+	void        Write(Shared::Stream *out);
+	// read back a script written with Write
+	bool        Read(Shared::Stream *in);
+	const char *GetSectionName(int32_t offset) const;
+
+protected:
+	// free the memory occupied by the script - do NOT attempt to run the
+	// script after calling this function
+	void        Free();
+};
+
+typedef std::shared_ptr<ccScript> PScript;
+
+} // namespace AGS3
+
+#endif