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audio/soundfont/rifffile.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/>.
+ *
+ */
+/*
+ * VGMTrans (c) 2002-2019
+ * Licensed under the zlib license,
+ * refer to the included VGMTrans_LICENSE.txt file
+ */
+#ifndef AUDIO_SOUNDFONT_RIFFFILE_H
+#define AUDIO_SOUNDFONT_RIFFFILE_H
+
+#include "common/scummsys.h"
+#include "common/list.h"
+#include "common/str.h"
+#include "common/array.h"
+
+//////////////////////////////////////////////
+// Chunk		- Riff format chunk
+//////////////////////////////////////////////
+class Chunk {
+public:
+	char _id[4];     //  A chunk ID identifies the type of data within the chunk.
+	uint32 _size;  //  The size of the chunk data in bytes, excluding any pad byte.
+	uint8 *_data;  //  The actual data not including a possible pad byte to word align
+
+public:
+	Chunk(Common::String theId) : _data(NULL), _size(0) {
+		assert(theId.size() == 4);
+		memcpy(_id, theId.c_str(), 4);
+	}
+
+	virtual ~Chunk() {
+		if (_data != NULL) {
+			delete[] _data;
+			_data = NULL;
+		}
+	}
+
+	void SetData(const void *src, uint32 datasize);
+
+	virtual uint32 GetSize();  //  Returns the size of the chunk in bytes, including any pad byte.
+	virtual void Write(uint8 *buffer);
+
+protected:
+	static inline uint32 GetPaddedSize(uint32 originalSize) { return originalSize + (originalSize % 2); }
+};
+
+////////////////////////////////////////////////////////////////////////////
+// ListTypeChunk	- Riff chunk type where the first 4 data bytes are a sig
+//					  and the rest of the data is a collection of child chunks
+////////////////////////////////////////////////////////////////////////////
+class ListTypeChunk : public Chunk {
+public:
+	char _type[4];  // 4 byte sig that begins the data field, "LIST" or "sfbk" for ex
+	Common::List<Chunk *> _childChunks;
+
+public:
+	ListTypeChunk(Common::String theId, Common::String theType) : Chunk(theId) {
+		assert(theType.size() == 4);
+		memcpy(_type, theType.c_str(), 4);
+	}
+
+	virtual ~ListTypeChunk() {
+		_childChunks.erase(_childChunks.begin(), _childChunks.end());
+	}
+
+	Chunk *AddChildChunk(Chunk *ck);
+
+	virtual uint32 GetSize();  //  Returns the size of the chunk in bytes, including any pad byte.
+	virtual void Write(uint8 *buffer);
+};
+
+////////////////////////////////////////////////////////////////////////////
+// RIFFChunk
+////////////////////////////////////////////////////////////////////////////
+class RIFFChunk : public ListTypeChunk {
+public:
+	RIFFChunk(Common::String form) : ListTypeChunk("RIFF", form) {}
+};
+
+////////////////////////////////////////////////////////////////////////////
+// LISTChunk
+////////////////////////////////////////////////////////////////////////////
+class LISTChunk : public ListTypeChunk {
+public:
+	LISTChunk(Common::String theType) : ListTypeChunk("LIST", theType) {}
+};
+
+////////////////////////////////////////////////////////////////////////////
+// RiffFile		-
+////////////////////////////////////////////////////////////////////////////
+class RiffFile : public RIFFChunk {
+public:
+	RiffFile(const Common::String &file_name, const Common::String &form);
+
+	static void WriteLIST(Common::Array<uint8> &buf, uint32 listName, uint32 listSize) {
+		//TODO
+//        PushTypeOnVectBE<uint32>(buf, 0x4C495354);  // write "LIST"
+//        PushTypeOnVect<uint32>(buf, listSize);
+//        PushTypeOnVectBE<uint32>(buf, listName);
+	}
+
+	// Adds a null byte and ensures 16 bit alignment of a text string
+	static void AlignName(Common::String &name) {
+		name += (char) 0x00;
+		if (name.size() % 2)     // if the size of the name string is odd
+			name += (char) 0x00;  // add another null byte
+	}
+
+protected:
+	Common::String _name;
+};
+
+#endif // AUDIO_SOUNDFONT_RIFFFILE_H