Initial community commit

Src/Plugins/Input/in_avi/win32_avi_reader.h

@@ -0,0 +1,36 @@
+#pragma once
+#include "../nsavi/avi_reader.h"
+#include "../nu/ringbuffer.h"
+
+class AVIReaderWin32 : public nsavi::avi_reader, private Filler
+{
+public:
+	AVIReaderWin32();
+	~AVIReaderWin32();
+	int Open(const wchar_t *filename);
+	void Close();
+
+/* avi_reader implementation */
+	uint64_t GetContentLength();
+	int Seek(uint64_t position);
+
+private:
+	int Read(void *p_read_buffer, uint32_t read_length, uint32_t *bytes_read);
+	int Peek(void *p_read_buffer, uint32_t read_length, uint32_t *bytes_read);
+	void OverlappedHint(uint32_t read_length);
+	uint64_t Tell();
+	int Skip(uint32_t skip_bytes);
+	void GetFilename(wchar_t *fn, size_t len);
+	
+	/* internal helpers */
+	void DoRead();
+/* RingBuffer Filler implementation */
+		size_t Read(void *dest, size_t len);
+
+	HANDLE hFile; // i hate hungarian notation, but calling this hFile is a force of habit :)
+	RingBuffer _ring_buffer;
+	bool end_of_file;
+	LARGE_INTEGER position; // since we read ahead, we need to keep track of this separately
+	wchar_t *local_filename;
+
+};