From 4e41f79a50b18b4e9b9fa00bbfa68ecb15fcb63e Mon Sep 17 00:00:00 2001
From: fusion32 <marcopuzziello@gmail.com>
Date: Thu, 22 May 2025 19:03:45 -0300
Subject: implement TWriteStream, T(Dynamic)WriteBuffer, and TWriteBinaryFile

---
 src/common.hh | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

(limited to 'src/common.hh')

diff --git a/src/common.hh b/src/common.hh
index 204cf2a..124dd84 100644
--- a/src/common.hh
+++ b/src/common.hh
@@ -164,6 +164,36 @@ struct TReadBuffer: TReadStream {
 	bool eof(void) override;
 	void skip(int Count) override;
 
+	// DATA
+	// =========================================================================
+	const uint8 *Data;
+	int Size;
+	int Position;
+};
+
+struct TWriteStream {
+	// VIRTUAL FUNCTIONS
+	// =========================================================================
+	virtual void writeFlag(bool Flag);													// VTABLE[0]
+	virtual void writeByte(uint8 Byte) = 0;												// VTABLE[1]
+	virtual void writeWord(uint16 Word);												// VTABLE[2]
+	virtual void writeQuad(uint16 Quad);												// VTABLE[3]
+	virtual void writeString(const char *String);										// VTABLE[4]
+	virtual void writeBytes(const uint8 *Buffer, int Count);							// VTABLE[5]
+};
+
+struct TWriteBuffer: TWriteStream {
+	// REGULAR FUNCTIONS
+	// =========================================================================
+	TWriteBuffer(uint8 *Data, int Size);
+
+	// VIRTUAL FUNCTIONS
+	// =========================================================================
+	void writeByte(uint8 Byte) override;
+	void writeWord(uint16 Word) override;
+	void writeQuad(uint32 Quad) override;
+	void writeBytes(uint8 *Buffer, int Count) override;
+
 	// DATA
 	// =========================================================================
 	uint8 *Data;
@@ -171,4 +201,24 @@ struct TReadBuffer: TReadStream {
 	int Position;
 };
 
+struct TDynamicWriteBuffer: TWriteBuffer {
+	// REGULAR FUNCTIONS
+	// =========================================================================
+	TDynamicWriteBuffer(int InitialSize);
+	void resizeBuffer(void);
+
+	// VIRTUAL FUNCTIONS
+	// =========================================================================
+	void writeByte(uint8 Byte) override;
+	void writeWord(uint16 Word) override;
+	void writeQuad(uint32 Quad) override;
+	void writeBytes(uint8 *Buffer, int Count) override;
+
+	// TODO(fusion): Appended virtual functions. These are not in the base class
+	// VTABLE which can be problematic if we intend to use polymorphism, although
+	// that doesn't seem to be case.
+	virtual ~TDynamicWriteBuffer(void);													// VTABLE[6]
+	// Duplicate destructor that also calls operator delete.							// VTABLE[7]
+};
+
 #endif //TIBIA_COMMON_HH_
-- 
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