/*
 * test for gdi+
 */


#include "hdr/modern_commonheaders.h"

#undef Translate	//otherwise will conflict with gdi plus Translate
#include <gdiplus.h>

#include "hdr/modern_global_structure.h"

using namespace Gdiplus;

int mir_strlen(const char *a);
HBITMAP ske_CreateDIB32(int cx, int cy);

BYTE      saved_alpha;
ULONG_PTR g_gdiplusToken;
int       g_hottrack;

void InitGdiPlus(void)
{
	GdiplusStartupInput gdiplusStartupInput;
	g_CluiData.fGDIPlusFail = false;
	__try {
		if (g_gdiplusToken == 0)
			GdiplusStartup(&g_gdiplusToken, &gdiplusStartupInput, NULL);
	}
	__except ( EXCEPTION_EXECUTE_HANDLER ) {
		g_CluiData.fGDIPlusFail = true;
	}
}

void ShutdownGdiPlus(void)
{
	GdiplusStartupInput gdiplusStartupInput;
	__try {
		if (g_gdiplusToken)
			GdiplusShutdown(g_gdiplusToken);
	}
	__except ( EXCEPTION_EXECUTE_HANDLER ) {
		g_CluiData.fGDIPlusFail = true;
	}
	g_gdiplusToken = 0;
}

static ColorMatrix ClrMatrix =
{
	1.0f, 0.0f, 0.0f, 0.0f, 0.0f,
	0.0f, 1.0f, 0.0f, 0.0f, 0.0f,
	0.0f, 0.0f, 1.0f, 0.0f, 0.0f,
	0.0f, 0.0f, 0.0f, 0.5f, 0.0f,
	0.0f, 0.0f, 0.0f, 0.0f, 1.0f
};

DWORD argb_from_cola(COLORREF col, BYTE alpha)
{
	return((BYTE) (alpha) << 24 | col);
}

HBITMAP GDIPlus_LoadGlyphImage(const TCHAR *tszFileName)
{
  // Create a Bitmap object from a JPEG file.
  Bitmap bitmap(tszFileName, 0);

  // Clone a portion of the bitmap.
  Bitmap* clone = bitmap.Clone(0, 0, bitmap.GetWidth(), bitmap.GetHeight(), PixelFormat32bppPARGB);
  HBITMAP hbmp = NULL;
  if (clone) {
    clone->GetHBITMAP(Color(0, 0, 0),&hbmp);
    delete clone;
  }
  return hbmp;
}

void TextOutWithGDIp(HDC hDestDC, int x, int y, LPCTSTR lpString, int nCount)
{
}

void DrawAvatarImageWithGDIp(HDC hDestDC,int x, int y, DWORD width, DWORD height, HBITMAP hbmp, int x1, int y1, DWORD width1, DWORD height1,DWORD flag,BYTE alpha)
{
	BITMAP bmp;
	Bitmap *bm;
	BYTE * bmbits = NULL;
	GetObject(hbmp,sizeof(BITMAP),&bmp);
	Graphics g(hDestDC);
	if (bmp.bmBitsPixel == 32 && (flag&AVS_PREMULTIPLIED)) {
		bmbits = (BYTE*)bmp.bmBits;
		if ( !bmbits) {
			bmbits = (BYTE*)malloc(bmp.bmHeight*bmp.bmWidthBytes);
			GetBitmapBits(hbmp,bmp.bmHeight*bmp.bmWidthBytes,bmbits);
		}
		bm = new Bitmap(bmp.bmWidth,bmp.bmHeight,bmp.bmWidthBytes,PixelFormat32bppPARGB,bmbits);
		bm->RotateFlip(RotateNoneFlipY);
		if ( !bmp.bmBits) {
			bm->RotateFlip(RotateNoneFlipY);
			free(bmbits);
		}
	}
	else bm = new Bitmap(hbmp,NULL);

	ImageAttributes attr;
	ColorMatrix ClrMatrix  = 
	{
		1.0f, 0.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 1.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 1.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 0.0f, ((float)alpha)/255, 0.0f,
		0.0f, 0.0f, 0.0f, 0.0f, 1.0f
	};
	attr.SetColorMatrix(&ClrMatrix, ColorMatrixFlagsDefault,ColorAdjustTypeBitmap);
	g.SetInterpolationMode(InterpolationModeHighQualityBicubic);
	RectF rect((float)x,(float)y,(float)width,(float)height);
	g.DrawImage(bm, rect, (float)x1, (float)y1, (float)width1, (float)height1 , UnitPixel, &attr, NULL, NULL);
	delete bm;
}

BOOL GDIPlus_AlphaBlend(HDC hdcDest,int nXOriginDest,int nYOriginDest,int nWidthDest,int nHeightDest,HDC hdcSrc,int nXOriginSrc,int nYOriginSrc,int nWidthSrc,int nHeightSrc, BLENDFUNCTION * bf)
{
	Graphics g(hdcDest);
	BITMAP bmp;
	HBITMAP hbmp = (HBITMAP)GetCurrentObject(hdcSrc,OBJ_BITMAP);
	GetObject(hbmp,sizeof(BITMAP),&bmp);

	Bitmap *bm;
	if (bmp.bmBitsPixel == 32 && bf->AlphaFormat) {
		bm = new Bitmap(bmp.bmWidth,bmp.bmHeight,bmp.bmWidthBytes,PixelFormat32bppPARGB,(BYTE*)bmp.bmBits);
		bm->RotateFlip(RotateNoneFlipY);
	}
	else bm = new Bitmap(hbmp, NULL);

	ImageAttributes attr;
	ColorMatrix ClrMatrix  = 
	{
		1.0f, 0.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 1.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 1.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 0.0f, ((float)bf->SourceConstantAlpha)/255, 0.0f,
		0.0f, 0.0f, 0.0f, 0.0f, 1.0f
	};
	attr.SetColorMatrix(&ClrMatrix, ColorMatrixFlagsDefault,ColorAdjustTypeBitmap);

	if (bf->BlendFlags&128 && nWidthDest < nWidthSrc && nHeightDest < nHeightSrc) {
		g.SetInterpolationMode(InterpolationModeHighQualityBicubic);
		g.SetPixelOffsetMode(PixelOffsetModeHalf);
		attr.SetGamma((REAL)0.8,ColorAdjustTypeBitmap);
	}
	else g.SetInterpolationMode(InterpolationModeLowQuality);

	RectF rect((float)nXOriginDest,(float)nYOriginDest,(float)nWidthDest,(float)nHeightDest);
	g.DrawImage(bm, rect, (float)nXOriginSrc, (float)nYOriginSrc, (float)nWidthSrc, (float)nHeightSrc , UnitPixel, &attr, NULL, NULL);
	delete bm;
	return TRUE;
}

COLORREF __inline _revcolref(COLORREF colref)
{
    return RGB(GetBValue(colref), GetGValue(colref), GetRValue(colref));
}

/////////////////////////////////////////////////////////////////////////////////
// GDIPlus_IsAnimatedGIF and GDIPlus_ExtractAnimatedGIF
// based on routine from http://www.codeproject.com/vcpp/gdiplus/imageexgdi.asp
//

BOOL GDIPlus_IsAnimatedGif (TCHAR * szName)
{
	int nFrameCount = 0;
	Image image(szName);
	UINT count = 0;

	count = image.GetFrameDimensionsCount();
	GUID* pDimensionIDs = new GUID[count];

	// Get the list of frame dimensions from the Image object.
	image.GetFrameDimensionsList(pDimensionIDs, count);

	// Get the number of frames in the first dimension.
	nFrameCount = image.GetFrameCount(&pDimensionIDs[0]);

	delete[]  pDimensionIDs;

	return (BOOL)(nFrameCount > 1);
}

void GDIPlus_ExtractAnimatedGIF (TCHAR * szName, int width, int height, HBITMAP * pBitmap, int ** pframesDelay, int * pframesCount, SIZE * pSizeAvatar)
{
	int nFrameCount = 0;
	Bitmap image(szName);
	PropertyItem * pPropertyItem;

	UINT count = 0;

	count = image.GetFrameDimensionsCount();
	GUID* pDimensionIDs = new GUID[count];

	// Get the list of frame dimensions from the Image object.
	image.GetFrameDimensionsList(pDimensionIDs, count);

	// Get the number of frames in the first dimension.
	nFrameCount = image.GetFrameCount(&pDimensionIDs[0]);

	// Assume that the image has a property item of type PropertyItemEquipMake.
	// Get the size of that property item.
	int nSize = image.GetPropertyItemSize(PropertyTagFrameDelay);

	// Allocate a buffer to receive the property item.
	pPropertyItem = (PropertyItem*) malloc(nSize);

	image.GetPropertyItem(PropertyTagFrameDelay, nSize, pPropertyItem);

	int clipWidth;
	int clipHeight;
	int imWidth = image.GetWidth();
	int imHeight = image.GetHeight();
	float xscale = (float)width/imWidth;
	float yscale = (float)height/imHeight;
	xscale = min(xscale,yscale);
	clipWidth = (int)(xscale*imWidth+.5);
	clipHeight = (int)(xscale*imHeight+.5);

	HBITMAP hBitmap = ske_CreateDIB32(clipWidth*nFrameCount, height);
	HDC hdc = CreateCompatibleDC(NULL);
	HBITMAP oldBmp = (HBITMAP)SelectObject(hdc,hBitmap);
	Graphics graphics(hdc);
	ImageAttributes attr;

	graphics.SetInterpolationMode( InterpolationModeHighQualityBicubic );
	graphics.SetPixelOffsetMode( PixelOffsetModeHalf );
	int * delays = (int*)malloc(nFrameCount*sizeof(int));
	memset(delays, 0, nFrameCount*sizeof(int));

	GUID   pageGuid = FrameDimensionTime;
	/*
	The GDIPlus strange behavior: without next 2 lines it will draw first frame anti aliased, but next - not
	*/
	if ( nFrameCount > 1 )
		image.SelectActiveFrame(&pageGuid, 1 );

	for (int i=0; i < nFrameCount; i++)
	{
		image.SelectActiveFrame( &pageGuid, i );
		graphics.DrawImage( &image, Rect(i*clipWidth, 0, clipWidth,clipHeight ), 0, 0, imWidth, imHeight , UnitPixel, &attr);
		long lPause = ((long*) pPropertyItem->value)[i] * 10;
		delays[i] = (int)lPause;
	}
	SelectObject(hdc,oldBmp);
	DeleteDC(hdc);
	free(pPropertyItem);
	delete[] pDimensionIDs;
	if (pBitmap && pframesDelay && pframesCount && pSizeAvatar)
	{
	   *pBitmap = hBitmap;
	   *pframesDelay = delays;
	   *pframesCount = nFrameCount;
	   pSizeAvatar->cx = clipWidth;
	   pSizeAvatar->cy = clipHeight;
	}
	GdiFlush();
}