Windows Port: Do a complete code cleanup and refactor of aviout.cpp to use proper C++ objects.

- aviout.cpp now uses Windows-style line-endings instead of Unix-style line-endings.
- AVI segments now fill up much closer to the 2 GB file limit than before.
- Error handling in the file writing thread is much more robust.

desmume/src/frontend/windows/aviout.h

@@ -18,16 +18,134 @@
 #ifndef _AVIOUT_H_
 #define _AVIOUT_H_
 
-#include "types.h"
+#include <windows.h>
+#include <vfw.h>
 
-bool DRV_AviBegin(const char* fname, bool newsegment = false);
-void DRV_AviEnd(bool newsegment = false);
+#include "GPU.h"
+#include "SPU.h"
+#include "utils/task.h"
+
+#define VIDEO_STREAM				0
+#define AUDIO_STREAM				1
+#define MAX_CONVERT_THREADS			32
+
+#define AUDIO_STREAM_BUFFER_SIZE	((DESMUME_SAMPLE_RATE * sizeof(u16) * 2) / 30)		// 16-bit samples, 2 channels, 2 frames (need only 1 frame's worth, but have 2 frame's worth for safety)
+#define MAX_AVI_FILE_SIZE			(2ULL * 1024ULL * 1024ULL * 1024ULL)				// Max file size should be 2 GB due to the Video for Windows AVI limit.
+#define PENDING_BUFFER_COUNT		2													// Number of pending buffers to maintain for file writes. Each pending buffer will store 1 frame's worth of the audio/video streams.
+
+class NDSCaptureObject;
+class AVIFileStream;
+
+struct VideoConvertParam
+{
+	NDSCaptureObject *captureObj;
+
+	const void *src;
+	u8 *dst;
+
+	size_t srcOffset;
+	size_t dstOffset;
+
+	size_t firstLineIndex;
+	size_t lastLineIndex;
+	size_t frameWidth;
+};
+typedef struct VideoConvertParam VideoConvertParam;
+
+struct AVIFileWriteParam
+{
+	AVIFileStream *fs;
+	u8 *srcVideo;
+	u8 *srcAudio;
+	size_t videoBufferSize;
+	size_t audioBufferSize;
+};
+typedef struct AVIFileWriteParam AVIFileWriteParam;
+
+class AVIFileStream
+{
+private:
+	static bool __needAviLibraryInit;
+
+protected:
+	PAVIFILE _file;
+	PAVISTREAM _stream[2];
+	PAVISTREAM _compressedStream[2];
+	AVISTREAMINFO _streamInfo[2];
+
+	AVICOMPRESSOPTIONS _compressionOptions[2];
+	BITMAPINFOHEADER _bmpFormat;
+	WAVEFORMATEX _wavFormat;
+
+	char _baseFileName[MAX_PATH];
+	char _baseFileNameExt[MAX_PATH];
+	size_t _segmentNumber;
+
+	size_t _expectedFrameSize;
+	size_t _writtenBytes;
+	LONG _writtenVideoFrameCount;
+	LONG _writtenAudioSampleCount;
+
+public:
+	AVIFileStream();
+	~AVIFileStream();
+
+	HRESULT Open(const char *fileName, BITMAPINFOHEADER *bmpFormat, WAVEFORMATEX *wavFormat);
+	void Close();
+	bool IsValid();
+
+	HRESULT FlushVideo(u8 *srcBuffer, const LONG bufferSize);
+	HRESULT FlushAudio(u8 *srcBuffer, const LONG bufferSize);
+	HRESULT WriteOneFrame(u8 *srcVideo, const LONG videoBufferSize, u8 *srcAudio, const LONG audioBufferSize);
+};
+
+class NDSCaptureObject
+{
+protected:
+	AVIFileStream *_fs;
+
+	BITMAPINFOHEADER _bmpFormat;
+	WAVEFORMATEX _wavFormat;
+
+	u8 *_pendingVideoBuffer;
+	u8 _pendingAudioBuffer[AUDIO_STREAM_BUFFER_SIZE * PENDING_BUFFER_COUNT];
+	size_t _pendingAudioWriteSize[2];
+	size_t _currentBufferIndex;
+
+	size_t _numThreads;
+	Task *_fileWriteThread;
+	Task *_convertThread[MAX_CONVERT_THREADS];
+	VideoConvertParam _convertParam[MAX_CONVERT_THREADS];
+	AVIFileWriteParam _fileWriteParam;
+
+public:
+	NDSCaptureObject();
+	NDSCaptureObject(size_t videoWidth, size_t videoHeight, const WAVEFORMATEX *wfex);
+	~NDSCaptureObject();
+
+	HRESULT OpenFileStream(const char *fileName);
+	void CloseFileStream();
+	bool IsFileStreamValid();
+
+	void StartFrame();
+	void StreamWriteStart();
+	void StreamWriteFinish();
+
+	void ConvertVideoSlice555Xto888(const VideoConvertParam &param);
+	void ConvertVideoSlice888Xto888(const VideoConvertParam &param);
+
+	void ReadVideoFrame(const void *srcVideoFrame, const size_t inFrameWidth, const size_t inFrameHeight, const NDSColorFormat colorFormat);
+	void ReadAudioFrames(const void *srcAudioBuffer, const size_t inSampleCount);
+};
+
+bool DRV_AviBegin(const char *fileName);
+void DRV_AviEnd();
 bool AVI_IsRecording();
 
 void DRV_AviFrameStart();
-void DRV_AviVideoUpdate();
-void DRV_AviSoundUpdate(void* soundData, int soundLen);
-void DRV_AviFileWrite();
+void DRV_AviVideoUpdate(const NDSDisplayInfo &displayInfo);
+void DRV_AviSoundUpdate(void *soundData, const int soundLen);
+void DRV_AviFileWriteStart();
 void DRV_AviFileWriteFinish();
 
 #endif

desmume/src/frontend/windows/main.cpp

@@ -548,7 +548,7 @@ public:
 			return;
 		}
 
-		DRV_AviVideoUpdate();
+		DRV_AviVideoUpdate(latestDisplayInfo);
 	}
 };
 
@@ -2235,7 +2235,7 @@ static void StepRunLoop_Core()
 	}
 	inFrameBoundary = true;
 
-	DRV_AviFileWrite();
+	DRV_AviFileWriteStart();
 
 	CallRegisteredLuaFunctions(LUACALL_AFTEREMULATION);
 	ServiceDisplayThreadInvocations();
@@ -3515,7 +3515,6 @@ int _main()
 
 	KillDisplay();
 
-	DRV_AviFileWriteFinish();
 	DRV_AviEnd();
 	WAV_End();
 
@@ -3807,8 +3806,11 @@ void SetRotate(HWND hwnd, int rot, bool user)
 void AviEnd()
 {
 	NDS_Pause();
-	DRV_AviFileWriteFinish();
+
 	DRV_AviEnd();
+	LOG("AVI recording ended.");
+	driver->AddLine("AVI recording ended.");
+
 	NDS_UnPause();
 }
 
@@ -3868,9 +3870,21 @@ void AviRecordTo()
 	ofn.nMaxFile = MAX_PATH;
 	ofn.Flags = OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT | OFN_NOREADONLYRETURN | OFN_PATHMUSTEXIST;
 
-	if(GetSaveFileName(&ofn))
+	if (GetSaveFileName(&ofn))
 	{
-		DRV_AviBegin(folder);
+		if (AVI_IsRecording())
+		{
+			DRV_AviEnd();
+			LOG("AVI recording ended.");
+			driver->AddLine("AVI recording ended.");
+		}
+
+		bool result = DRV_AviBegin(folder);
+		if (result)
+		{
+			LOG("AVI recording started.");
+			driver->AddLine("AVI recording started.");
+		}
 	}
 
 	NDS_UnPause();