X-Git-Url: https://git.ucc.asn.au/?p=ipdf%2Fcode.git;a=blobdiff_plain;f=src%2Fbufferbuilder.h;fp=src%2Fbufferbuilder.h;h=385369cdadb12dfb204a29473301fa3411dd44ae;hp=0000000000000000000000000000000000000000;hb=280f0d7d34b9bd377fb49580b69aebcbd60cc440;hpb=017e88152602dcdedaa917776e949bdfa235a159

diff --git a/src/bufferbuilder.h b/src/bufferbuilder.h
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+++ b/src/bufferbuilder.h
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+#ifndef _BUFFERBUILDER_H
+#define _BUFFERBUILDER_H
+
+namespace IPDF
+{
+	/*
+	 * Utility to add stuff to a buffer. 
+	 */
+	template <typename T>
+	class BufferBuilder
+	{
+	public:
+		BufferBuilder(void *data, size_t size) : m_bufferData((T*)data), m_bufferSize(size), m_bufferOffset(0) {};
+		// Append an item to the buffer, returning its index.
+		size_t Add(const T& item) {m_bufferData[m_bufferOffset] = item; m_bufferOffset++; return m_bufferOffset-1;}
+		bool Free(size_t num = 1) const {return ((m_bufferOffset + num) * sizeof(T)) < m_bufferSize;}
+	private:
+		T *m_bufferData;
+		size_t m_bufferSize; // In bytes, 'cause why make things easy?
+		size_t m_bufferOffset; // In elements, 'cause why make things consistant?
+	};
+
+}
+
+#endif // _SCREEN_H