codec_inst.h

#pragma once

#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <vfw.h>

#include "threading.h"

class CodecInst
{
public:
	ThreadData m_threads[2];
	CompressClass m_compressWorker;

	int m_started;			//if the codec has been properly initialized yet
	BYTE* m_buffer;
	BYTE* m_prevFrame;
	BYTE* m_in;
	BYTE* m_out;
	BYTE* m_buffer2;
	BYTE* m_deltaBuffer;
	BYTE* m_colorTransBuffer;
	size_t m_length;
	size_t m_width;
	size_t m_height;
	unsigned int m_format;	//input format for compressing, output format for decompression. Also the bitdepth.
	unsigned int m_compressFormat;
	unsigned int m_compressed_size;
	bool m_nullframes;
	bool m_deltaframes;

	CodecInst();
	~CodecInst();

	DWORD GetState(LPVOID pv, DWORD dwSize);
	DWORD SetState(LPVOID pv, DWORD dwSize);
	DWORD Configure(HWND hwnd);
	DWORD GetInfo(ICINFO* icinfo, DWORD dwSize);

	DWORD CompressQuery(LPBITMAPINFOHEADER lpbiIn, LPBITMAPINFOHEADER lpbiOut);
	DWORD CompressGetFormat(LPBITMAPINFOHEADER lpbiIn, LPBITMAPINFOHEADER lpbiOut);
	DWORD CompressBegin(LPBITMAPINFOHEADER lpbiIn, LPBITMAPINFOHEADER lpbiOut);
	DWORD CompressGetSize(LPBITMAPINFOHEADER lpbiIn, LPBITMAPINFOHEADER lpbiOut);
	DWORD Compress(ICCOMPRESS* icinfo, DWORD dwSize);
	DWORD CompressEnd();

	DWORD DecompressQuery(LPBITMAPINFOHEADER lpbiIn, LPBITMAPINFOHEADER lpbiOut);
	DWORD DecompressGetFormat(LPBITMAPINFOHEADER lpbiIn, LPBITMAPINFOHEADER lpbiOut);
	DWORD DecompressBegin(LPBITMAPINFOHEADER lpbiIn, LPBITMAPINFOHEADER lpbiOut);
	DWORD Decompress(ICDECOMPRESS* idcinfo);
	DWORD DecompressGetPalette(LPBITMAPINFOHEADER lpbiIn, LPBITMAPINFOHEADER lpbiOut);
	DWORD DecompressEnd();

	BOOL QueryConfigure();

	void InitDecompressionThreads(const BYTE* in, BYTE* out, size_t length, ThreadData* thread);
	DWORD InitThreads(bool encode);
	void EndThreads();

	DWORD CompressYUV16(ICCOMPRESS* icinfo);
	DWORD CompressYV12(ICCOMPRESS* icinfo);

	unsigned int HandleTwoCompressionThreads(unsigned int chan_size);

	void Decode3Channels(BYTE* dst1, unsigned int len1, BYTE* dst2, unsigned int len2, BYTE* dst3, unsigned int len3);
	void YUY2Decompress(DWORD flags);
	void YV12Decompress(DWORD flags);
	void ReduceResDecompress(DWORD flags);
};

CodecInst* Open(ICOPEN* icinfo);
DWORD Close(CodecInst* pinst);

void __stdcall DetectFlags(bool* SSE2);