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index b5fb2ce..f35e7f5 100644 (file)
@@ -34,10 +34,19 @@ typedef struct {
        DWORD Offset;\r
 } FRAMEHEADER;\r
 \r
+typedef struct {\r
+       WORD *lpRowOffsets;\r
+       WORD *lpRowSizes;\r
+       LPBYTE *lpRowData;\r
+       DWORD Size;\r
+} FRAMEDATA;\r
+\r
 GETPIXELPROC MyGetPixel = GetPixel;\r
 SETPIXELPROC MySetPixel = (SETPIXELPROC)SetPixelV;\r
 \r
-void __inline SetPix(HDC hDC, int X, int Y, COLORREF clrColor, DWORD dwFlags, DWORD dwAlpha);\r
+void __inline SetPix(HDC hDC, int X, int Y, COLORREF clrColor, DWORD *dwPalette, DWORD dwFlags, DWORD dwAlpha);\r
+void EncodeFrameData(signed short *lpImageData, WORD nFrame, GRPHEADER *lpGrpHeader, FRAMEHEADER *lpFrameHeader, FRAMEDATA *lpFrameData, BOOL bNoCompress);\r
+BOOL VerifyRow(signed short *lpRawRow, int nWidth, LPBYTE lpEncRow, int nSize, BOOL bNoCompress);\r
 \r
 extern HINSTANCE hStorm;\r
 \r
@@ -71,6 +80,23 @@ void GRPAPI WINAPI FreeGrpApi()
 {\r
 }\r
 \r
+/*\r
+HANDLE hProcessHeap = NULL;\r
+\r
+void * SFAlloc(size_t nSize)\r
+{\r
+       if (!hProcessHeap) hProcessHeap = GetProcessHeap();\r
+       if (hProcessHeap) return HeapAlloc(hProcessHeap, 0, nSize);\r
+       else return NULL;\r
+}\r
+\r
+void SFFree(void *lpMem)\r
+{\r
+       if (!hProcessHeap) hProcessHeap = GetProcessHeap();\r
+       if (hProcessHeap) HeapFree(hProcessHeap, 0, lpMem);\r
+}\r
+*/\r
+\r
 BOOL GRPAPI WINAPI SetMpqDll(LPCSTR lpDllFileName)\r
 {\r
        if (LoadStorm((char *)lpDllFileName)) return TRUE;\r
@@ -147,7 +173,7 @@ HANDLE GRPAPI WINAPI LoadGrp(LPCSTR lpFileName)
                        SFileCloseFile(hFile);\r
                        return (HANDLE)-1;\r
                }\r
-               GrpFile = (char *)VirtualAlloc(0,fsz,MEM_COMMIT,PAGE_READWRITE);\r
+               GrpFile = (char *)malloc(fsz);\r
                if (GrpFile) {\r
                        SFileSetFilePointer(hFile,0,0,FILE_BEGIN);\r
                        SFileReadFile(hFile,GrpFile,fsz,0,0);\r
@@ -163,7 +189,7 @@ HANDLE GRPAPI WINAPI LoadGrp(LPCSTR lpFileName)
                        CloseHandle(hFile);\r
                        return (HANDLE)-1;\r
                }\r
-               GrpFile = (char *)VirtualAlloc(0,fsz,MEM_COMMIT,PAGE_READWRITE);\r
+               GrpFile = (char *)malloc(fsz);\r
                if (GrpFile) {\r
                        SetFilePointer(hFile,0,0,FILE_BEGIN);\r
                        ReadFile(hFile,GrpFile,fsz,&tsz,0);\r
@@ -177,134 +203,200 @@ HANDLE GRPAPI WINAPI LoadGrp(LPCSTR lpFileName)
 BOOL GRPAPI WINAPI DestroyGrp(HANDLE hGrp)\r
 {\r
        if (!hGrp || hGrp==INVALID_HANDLE_VALUE) return FALSE;\r
-       VirtualFree(hGrp,0,MEM_RELEASE);\r
+       free(hGrp);\r
        return TRUE;\r
 }\r
 \r
 BOOL GRPAPI WINAPI DrawGrp(HANDLE hGrp, HDC hdcDest, int nXDest, int nYDest, WORD nFrame, DWORD *dwPalette, DWORD dwFlags, DWORD dwAlpha)\r
 {\r
-       if (!hGrp || hGrp==INVALID_HANDLE_VALUE || hdcDest==0 || !dwPalette) return FALSE;\r
+       if (!hGrp || hGrp==INVALID_HANDLE_VALUE || hdcDest==0 || (!dwPalette && !(dwFlags&USE_INDEX))) return FALSE;\r
        GRPHEADER *GrpFile = (GRPHEADER *)hGrp;\r
        nFrame %= GrpFile->nFrames;\r
        FRAMEHEADER *GrpFrame = &((FRAMEHEADER *)(((char *)GrpFile)+6))[nFrame];\r
+       FRAMEHEADER *GrpFrames = &((FRAMEHEADER *)(((char *)GrpFile)+6))[0];\r
+       int FrameSize = 0xFFFFFF;\r
        DWORD Right,Bottom;\r
        if (dwFlags&HORIZONTAL_FLIP) Right = nXDest+GrpFile->wMaxWidth-1-GrpFrame->Left;\r
        if (dwFlags&VERTICAL_FLIP) Bottom = nYDest+GrpFile->wMaxHeight-1-GrpFrame->Top;\r
        nXDest += GrpFrame->Left;\r
        nYDest += GrpFrame->Top;\r
        WORD *GrpOffsets = ((WORD *)(((char *)GrpFile)+GrpFrame->Offset));\r
+       BYTE *GrpRaw = (BYTE *)GrpOffsets;\r
        BYTE *RowData;\r
        WORD x,ofs;\r
-       DWORD y;\r
+       DWORD y, nMaxOffset = 0;\r
        WORD i;\r
+       int j, nFirstNonBlankFrame = 0;\r
+       for (i = 0; i < GrpFile->nFrames; i++) {\r
+               j = GrpFrames[i].Offset - GrpFrame->Offset;\r
+               if (j > 0 && j < FrameSize)\r
+                       FrameSize = j;\r
+               if (GrpFrames[i].Offset > nMaxOffset)\r
+                       nMaxOffset = GrpFrames[i].Offset;\r
+       }\r
+       if (FrameSize == 0xFFFFFF || FrameSize == GrpFrame->Width * GrpFrame->Height) {\r
+               FrameSize = 0xFFFFFF;\r
+               for (i = 0; i < GrpFile->nFrames; i++) {\r
+                       if (GrpFrames[i].Width != 0 && GrpFrames[i].Height != 0 && GrpFrames[i].Offset != GrpFrame->Offset && GrpFrames[i].Offset != nMaxOffset) {\r
+                               nFirstNonBlankFrame = i;\r
+                               break;\r
+                       }\r
+               }\r
+               if (i == GrpFile->nFrames)\r
+                       nFirstNonBlankFrame = nFrame;\r
+\r
+               for (i = 0; i < GrpFile->nFrames; i++) {\r
+                       j = GrpFrames[i].Offset - GrpFrames[nFirstNonBlankFrame].Offset;\r
+                       if (j > 0 && j < FrameSize)\r
+                               FrameSize = j;\r
+               }\r
+               if (FrameSize == GrpFrames[nFirstNonBlankFrame].Width * GrpFrames[nFirstNonBlankFrame].Height)\r
+                       FrameSize = GrpFrame->Width * GrpFrame->Height;\r
+       }\r
        if (!(dwFlags&HORIZONTAL_FLIP) && !(dwFlags&VERTICAL_FLIP)) {\r
-               for (y=0;y<GrpFrame->Height;y++) {\r
-                       RowData = ((BYTE *)(((char *)GrpOffsets)+GrpOffsets[y]));\r
-                       x=0; ofs=0;\r
-                       while (x<GrpFrame->Width) {\r
-                               if (!(RowData[ofs] & 0x80)) {\r
-                                       if (!(RowData[ofs] & 0x40)) {\r
-                                               for (i=1;i<=RowData[ofs] && x<GrpFrame->Width;i++) {\r
-                                                       SetPix(hdcDest,nXDest+x,nYDest+y,dwPalette[RowData[ofs+i]],dwFlags,dwAlpha);\r
-                                                       x++;\r
+               if (FrameSize != GrpFrame->Width * GrpFrame->Height) {\r
+                       for (y=0;y<GrpFrame->Height;y++) {\r
+                               RowData = ((BYTE *)(((char *)GrpOffsets)+GrpOffsets[y]));\r
+                               x=0; ofs=0;\r
+                               while (x<GrpFrame->Width) {\r
+                                       if (!(RowData[ofs] & 0x80)) {\r
+                                               if (!(RowData[ofs] & 0x40)) {\r
+                                                       for (i=1;i<=RowData[ofs] && x<GrpFrame->Width;i++) {\r
+                                                               SetPix(hdcDest,nXDest+x,nYDest+y,RowData[ofs+i],dwPalette,dwFlags,dwAlpha);\r
+                                                               x++;\r
+                                                       }\r
+                                                       ofs+=RowData[ofs]+1;\r
+                                               }\r
+                                               else {\r
+                                                       for (i=0;i<RowData[ofs]-64 && x<GrpFrame->Width;i++) {\r
+                                                               SetPix(hdcDest,nXDest+x,nYDest+y,RowData[ofs+1],dwPalette,dwFlags,dwAlpha);\r
+                                                               x++;\r
+                                                       }\r
+                                                       ofs+=2;\r
                                                }\r
-                                               ofs+=RowData[ofs]+1;\r
                                        }\r
                                        else {\r
-                                               for (i=0;i<RowData[ofs]-64 && x<GrpFrame->Width;i++) {\r
-                                                       SetPix(hdcDest,nXDest+x,nYDest+y,dwPalette[RowData[ofs+1]],dwFlags,dwAlpha);\r
-                                                       x++;\r
-                                               }\r
-                                               ofs+=2;\r
+                                               x+=RowData[ofs]-128;\r
+                                               ofs++;\r
                                        }\r
                                }\r
-                               else {\r
-                                       x+=RowData[ofs]-128;\r
-                                       ofs++;\r
+                       }\r
+               }\r
+               else {\r
+                       for (y=0;y<GrpFrame->Height;y++) {\r
+                               for (x=0;x<GrpFrame->Width;x++) {\r
+                                       SetPix(hdcDest,nXDest+x,nYDest+y,GrpRaw[y * GrpFrame->Width + x],dwPalette,dwFlags,dwAlpha);\r
                                }\r
                        }\r
                }\r
        }\r
        else if (dwFlags&HORIZONTAL_FLIP && !(dwFlags&VERTICAL_FLIP)) {\r
-               for (y=0;y<GrpFrame->Height;y++) {\r
-                       RowData = ((BYTE *)(((char *)GrpOffsets)+GrpOffsets[y]));\r
-                       x=0; ofs=0;\r
-                       while (x<GrpFrame->Width) {\r
-                               if (!(RowData[ofs] & 0x80)) {\r
-                                       if (!(RowData[ofs] & 0x40)) {\r
-                                               for (i=1;i<=RowData[ofs] && x<GrpFrame->Width;i++) {\r
-                                                       SetPix(hdcDest,Right-x,nYDest+y,dwPalette[RowData[ofs+i]],dwFlags,dwAlpha);\r
-                                                       x++;\r
+               if (FrameSize != GrpFrame->Width * GrpFrame->Height) {\r
+                       for (y=0;y<GrpFrame->Height;y++) {\r
+                               RowData = ((BYTE *)(((char *)GrpOffsets)+GrpOffsets[y]));\r
+                               x=0; ofs=0;\r
+                               while (x<GrpFrame->Width) {\r
+                                       if (!(RowData[ofs] & 0x80)) {\r
+                                               if (!(RowData[ofs] & 0x40)) {\r
+                                                       for (i=1;i<=RowData[ofs] && x<GrpFrame->Width;i++) {\r
+                                                               SetPix(hdcDest,Right-x,nYDest+y,RowData[ofs+i],dwPalette,dwFlags,dwAlpha);\r
+                                                               x++;\r
+                                                       }\r
+                                                       ofs+=RowData[ofs]+1;\r
+                                               }\r
+                                               else {\r
+                                                       for (i=0;i<RowData[ofs]-64 && x<GrpFrame->Width;i++) {\r
+                                                               SetPix(hdcDest,Right-x,nYDest+y,RowData[ofs+1],dwPalette,dwFlags,dwAlpha);\r
+                                                               x++;\r
+                                                       }\r
+                                                       ofs+=2;\r
                                                }\r
-                                               ofs+=RowData[ofs]+1;\r
                                        }\r
                                        else {\r
-                                               for (i=0;i<RowData[ofs]-64 && x<GrpFrame->Width;i++) {\r
-                                                       SetPix(hdcDest,Right-x,nYDest+y,dwPalette[RowData[ofs+1]],dwFlags,dwAlpha);\r
-                                                       x++;\r
-                                               }\r
-                                               ofs+=2;\r
+                                               x+=RowData[ofs]-128;\r
+                                               ofs++;\r
                                        }\r
                                }\r
-                               else {\r
-                                       x+=RowData[ofs]-128;\r
-                                       ofs++;\r
+                       }\r
+               }\r
+               else {\r
+                       for (y=0;y<GrpFrame->Height;y++) {\r
+                               for (x=0;x<GrpFrame->Width;x++) {\r
+                                       SetPix(hdcDest,Right-x,nYDest+y,GrpRaw[y * GrpFrame->Width + x],dwPalette,dwFlags,dwAlpha);\r
                                }\r
                        }\r
                }\r
        }\r
        else if (!(dwFlags&HORIZONTAL_FLIP) && dwFlags&VERTICAL_FLIP) {\r
-               for (y=0;y<GrpFrame->Height;y++) {\r
-                       RowData = ((BYTE *)(((char *)GrpOffsets)+GrpOffsets[y]));\r
-                       x=0; ofs=0;\r
-                       while (x<GrpFrame->Width) {\r
-                               if (!(RowData[ofs] & 0x80)) {\r
-                                       if (!(RowData[ofs] & 0x40)) {\r
-                                               for (i=1;i<=RowData[ofs] && x<GrpFrame->Width;i++) {\r
-                                                       SetPix(hdcDest,nXDest+x,Bottom-y,dwPalette[RowData[ofs+i]],dwFlags,dwAlpha);\r
-                                                       x++;\r
+               if (FrameSize != GrpFrame->Width * GrpFrame->Height) {\r
+                       for (y=0;y<GrpFrame->Height;y++) {\r
+                               RowData = ((BYTE *)(((char *)GrpOffsets)+GrpOffsets[y]));\r
+                               x=0; ofs=0;\r
+                               while (x<GrpFrame->Width) {\r
+                                       if (!(RowData[ofs] & 0x80)) {\r
+                                               if (!(RowData[ofs] & 0x40)) {\r
+                                                       for (i=1;i<=RowData[ofs] && x<GrpFrame->Width;i++) {\r
+                                                               SetPix(hdcDest,nXDest+x,Bottom-y,RowData[ofs+i],dwPalette,dwFlags,dwAlpha);\r
+                                                               x++;\r
+                                                       }\r
+                                                       ofs+=RowData[ofs]+1;\r
+                                               }\r
+                                               else {\r
+                                                       for (i=0;i<RowData[ofs]-64 && x<GrpFrame->Width;i++) {\r
+                                                               SetPix(hdcDest,nXDest+x,Bottom-y,RowData[ofs+1],dwPalette,dwFlags,dwAlpha);\r
+                                                               x++;\r
+                                                       }\r
+                                                       ofs+=2;\r
                                                }\r
-                                               ofs+=RowData[ofs]+1;\r
                                        }\r
                                        else {\r
-                                               for (i=0;i<RowData[ofs]-64 && x<GrpFrame->Width;i++) {\r
-                                                       SetPix(hdcDest,nXDest+x,Bottom-y,dwPalette[RowData[ofs+1]],dwFlags,dwAlpha);\r
-                                                       x++;\r
-                                               }\r
-                                               ofs+=2;\r
+                                               x+=RowData[ofs]-128;\r
+                                               ofs++;\r
                                        }\r
                                }\r
-                               else {\r
-                                       x+=RowData[ofs]-128;\r
-                                       ofs++;\r
+                       }\r
+               }\r
+               else {\r
+                       for (y=0;y<GrpFrame->Height;y++) {\r
+                               for (x=0;x<GrpFrame->Width;x++) {\r
+                                       SetPix(hdcDest,nXDest+x,Bottom-y,GrpRaw[y * GrpFrame->Width + x],dwPalette,dwFlags,dwAlpha);\r
                                }\r
                        }\r
                }\r
        }\r
        else {\r
-               for (y=0;y<GrpFrame->Height;y++) {\r
-                       RowData = ((BYTE *)(((char *)GrpOffsets)+GrpOffsets[y]));\r
-                       x=0; ofs=0;\r
-                       while (x<GrpFrame->Width) {\r
-                               if (!(RowData[ofs] & 0x80)) {\r
-                                       if (!(RowData[ofs] & 0x40)) {\r
-                                               for (i=1;i<=RowData[ofs] && x<GrpFrame->Width;i++) {\r
-                                                       SetPix(hdcDest,Right-x,Bottom-y,dwPalette[RowData[ofs+i]],dwFlags,dwAlpha);\r
-                                                       x++;\r
+               if (FrameSize != GrpFrame->Width * GrpFrame->Height) {\r
+                       for (y=0;y<GrpFrame->Height;y++) {\r
+                               RowData = ((BYTE *)(((char *)GrpOffsets)+GrpOffsets[y]));\r
+                               x=0; ofs=0;\r
+                               while (x<GrpFrame->Width) {\r
+                                       if (!(RowData[ofs] & 0x80)) {\r
+                                               if (!(RowData[ofs] & 0x40)) {\r
+                                                       for (i=1;i<=RowData[ofs] && x<GrpFrame->Width;i++) {\r
+                                                               SetPix(hdcDest,Right-x,Bottom-y,RowData[ofs+i],dwPalette,dwFlags,dwAlpha);\r
+                                                               x++;\r
+                                                       }\r
+                                                       ofs+=RowData[ofs]+1;\r
+                                               }\r
+                                               else {\r
+                                                       for (i=0;i<RowData[ofs]-64 && x<GrpFrame->Width;i++) {\r
+                                                               SetPix(hdcDest,Right-x,Bottom-y,RowData[ofs+1],dwPalette,dwFlags,dwAlpha);\r
+                                                               x++;\r
+                                                       }\r
+                                                       ofs+=2;\r
                                                }\r
-                                               ofs+=RowData[ofs]+1;\r
                                        }\r
                                        else {\r
-                                               for (i=0;i<RowData[ofs]-64 && x<GrpFrame->Width;i++) {\r
-                                                       SetPix(hdcDest,Right-x,Bottom-y,dwPalette[RowData[ofs+1]],dwFlags,dwAlpha);\r
-                                                       x++;\r
-                                               }\r
-                                               ofs+=2;\r
+                                               x+=RowData[ofs]-128;\r
+                                               ofs++;\r
                                        }\r
                                }\r
-                               else {\r
-                                       x+=RowData[ofs]-128;\r
-                                       ofs++;\r
+                       }\r
+               }\r
+               else {\r
+                       for (y=0;y<GrpFrame->Height;y++) {\r
+                               for (x=0;x<GrpFrame->Width;x++) {\r
+                                       SetPix(hdcDest,Right-x,Bottom-y,GrpRaw[y * GrpFrame->Width + x],dwPalette,dwFlags,dwAlpha);\r
                                }\r
                        }\r
                }\r
@@ -319,47 +411,336 @@ BOOL GRPAPI WINAPI GetGrpInfo(HANDLE hGrp, GRPHEADER *GrpInfo)
        return TRUE;\r
 }\r
 \r
+BOOL GRPAPI WINAPI GetGrpFrameInfo(HANDLE hGrp, WORD nFrame, DWORD *nLeft, DWORD *nTop, DWORD *nWidth, DWORD *nHeight)\r
+{\r
+       if (!hGrp || hGrp==INVALID_HANDLE_VALUE) return FALSE;\r
+       FRAMEHEADER *GrpFrame = &((FRAMEHEADER *)(((char *)hGrp)+6))[nFrame];\r
+\r
+       if (nLeft) *nLeft = GrpFrame->Left;\r
+       if (nTop) *nTop = GrpFrame->Top;\r
+       if (nWidth) *nWidth = GrpFrame->Width;\r
+       if (nHeight) *nHeight = GrpFrame->Height;\r
+\r
+       return TRUE;\r
+}\r
+\r
 void GRPAPI WINAPI SetFunctionGetPixel(GETPIXELPROC lpGetPixelProc)\r
 {\r
-       MyGetPixel = lpGetPixelProc;\r
+       if (!lpGetPixelProc)\r
+               MyGetPixel = GetPixel;\r
+       else\r
+               MyGetPixel = lpGetPixelProc;\r
 }\r
 \r
 void GRPAPI WINAPI SetFunctionSetPixel(SETPIXELPROC lpSetPixelProc)\r
 {\r
-       MySetPixel = lpSetPixelProc;\r
+       if (!lpSetPixelProc)\r
+               MySetPixel = (SETPIXELPROC)SetPixelV;\r
+       else\r
+               MySetPixel = lpSetPixelProc;\r
 }\r
 \r
-void __inline SetPix(HDC hDC, int X, int Y, COLORREF clrColor, DWORD dwFlags, DWORD dwAlpha)\r
+void __inline SetPix(HDC hDC, int X, int Y, COLORREF clrColor, DWORD *dwPalette, DWORD dwFlags, DWORD dwAlpha)\r
 {\r
-       if (dwFlags&SHADOW_COLOR) {\r
-               clrColor = (dwFlags >> 8) & 0x00FFFFFF;\r
-       }\r
-       if (dwFlags&ALPHA_BLEND) {\r
-               DWORD dwColor = MyGetPixel(hDC,X,Y);\r
-\r
-               // Old alpha\r
-               /*((BYTE *)&dwColor)[0]*=1-((float)((BYTE *)&dwAlpha)[0]/256);\r
-               ((BYTE *)&dwColor)[1]*=1-((float)((BYTE *)&dwAlpha)[1]/256);\r
-               ((BYTE *)&dwColor)[2]*=1-((float)((BYTE *)&dwAlpha)[2]/256);\r
-               ((BYTE *)&clrColor)[0]*=(float)((BYTE *)&dwAlpha)[0]/256;\r
-               ((BYTE *)&clrColor)[1]*=(float)((BYTE *)&dwAlpha)[1]/256;\r
-               ((BYTE *)&clrColor)[2]*=(float)((BYTE *)&dwAlpha)[2]/256;\r
-               ((BYTE *)&clrColor)[0]+=((BYTE *)&dwColor)[0];\r
-               ((BYTE *)&clrColor)[1]+=((BYTE *)&dwColor)[1];\r
-               ((BYTE *)&clrColor)[2]+=((BYTE *)&dwColor)[2];*/\r
-\r
-               /* blendedcolor =\r
-                    ( ( forecolor * ( 1 - alpha ) ) >> 8 )\r
-                  + ( ( backcolor * ( 256 - alpha ) ) >> 8 ) */\r
-               ((BYTE *)&clrColor)[0] =\r
-                       ( ( ((BYTE *)&clrColor)[0] * ( ((BYTE *)&dwAlpha)[0] + 1 ) ) >> 8 )\r
-                       + ( ( ((BYTE *)&dwColor)[0] * ( 256 - ((BYTE *)&dwAlpha)[0] ) ) >> 8 );\r
-               ((BYTE *)&clrColor)[1] =\r
-                       ( ( ((BYTE *)&clrColor)[1] * ( ((BYTE *)&dwAlpha)[1] + 1 ) ) >> 8 )\r
-                       + ( ( ((BYTE *)&dwColor)[1] * ( 256 - ((BYTE *)&dwAlpha)[1] ) ) >> 8 );\r
-               ((BYTE *)&clrColor)[2] =\r
-                       ( ( ((BYTE *)&clrColor)[2] * ( ((BYTE *)&dwAlpha)[2] + 1 ) ) >> 8 )\r
-                       + ( ( ((BYTE *)&dwColor)[2] * ( 256 - ((BYTE *)&dwAlpha)[2] ) ) >> 8 );\r
+       if (!(dwFlags&USE_INDEX)) {\r
+               if (dwFlags&SHADOW_COLOR) {\r
+                       clrColor = (dwFlags >> 8) & 0x00FFFFFF;\r
+               }\r
+               else {\r
+                       clrColor = dwPalette[clrColor];\r
+               }\r
+               if (dwFlags&ALPHA_BLEND) {\r
+                       DWORD dwColor = MyGetPixel(hDC,X,Y);\r
+\r
+                       // Old alpha\r
+                       /*((BYTE *)&dwColor)[0]*=1-((float)((BYTE *)&dwAlpha)[0]/256);\r
+                       ((BYTE *)&dwColor)[1]*=1-((float)((BYTE *)&dwAlpha)[1]/256);\r
+                       ((BYTE *)&dwColor)[2]*=1-((float)((BYTE *)&dwAlpha)[2]/256);\r
+                       ((BYTE *)&clrColor)[0]*=(float)((BYTE *)&dwAlpha)[0]/256;\r
+                       ((BYTE *)&clrColor)[1]*=(float)((BYTE *)&dwAlpha)[1]/256;\r
+                       ((BYTE *)&clrColor)[2]*=(float)((BYTE *)&dwAlpha)[2]/256;\r
+                       ((BYTE *)&clrColor)[0]+=((BYTE *)&dwColor)[0];\r
+                       ((BYTE *)&clrColor)[1]+=((BYTE *)&dwColor)[1];\r
+                       ((BYTE *)&clrColor)[2]+=((BYTE *)&dwColor)[2];*/\r
+\r
+                       /* blendedcolor =\r
+                                ( ( forecolor * ( 1 - alpha ) ) >> 8 )\r
+                          + ( ( backcolor * ( 256 - alpha ) ) >> 8 ) */\r
+                       ((BYTE *)&clrColor)[0] =\r
+                               ( ( ((BYTE *)&clrColor)[0] * ( ((BYTE *)&dwAlpha)[0] + 1 ) ) >> 8 )\r
+                               + ( ( ((BYTE *)&dwColor)[0] * ( 256 - ((BYTE *)&dwAlpha)[0] ) ) >> 8 );\r
+                       ((BYTE *)&clrColor)[1] =\r
+                               ( ( ((BYTE *)&clrColor)[1] * ( ((BYTE *)&dwAlpha)[1] + 1 ) ) >> 8 )\r
+                               + ( ( ((BYTE *)&dwColor)[1] * ( 256 - ((BYTE *)&dwAlpha)[1] ) ) >> 8 );\r
+                       ((BYTE *)&clrColor)[2] =\r
+                               ( ( ((BYTE *)&clrColor)[2] * ( ((BYTE *)&dwAlpha)[2] + 1 ) ) >> 8 )\r
+                               + ( ( ((BYTE *)&dwColor)[2] * ( 256 - ((BYTE *)&dwAlpha)[2] ) ) >> 8 );\r
+               }\r
        }\r
        MySetPixel(hDC,X,Y,clrColor);\r
 }\r
+\r
+HANDLE GRPAPI WINAPI CreateGrp(signed short *lpImageData, WORD nFrames, WORD wMaxWidth, WORD wMaxHeight, BOOL bNoCompress, DWORD *nGrpSize)\r
+{\r
+       GRPHEADER GrpHeader;\r
+       FRAMEHEADER *lpFrameHeaders;\r
+       FRAMEDATA *lpFrameData;\r
+       LPBYTE lpGrpData;\r
+       int i, j, x, y, x1, x2, y1, y2;\r
+       DWORD nLastOffset;\r
+\r
+       if (!lpImageData || !nGrpSize) return (HANDLE)-1;\r
+\r
+       GrpHeader.nFrames = nFrames;\r
+       GrpHeader.wMaxWidth = wMaxWidth;\r
+       GrpHeader.wMaxHeight = wMaxHeight;\r
+       lpFrameHeaders = (FRAMEHEADER *)malloc(nFrames * sizeof(FRAMEHEADER));\r
+       lpFrameData = (FRAMEDATA *)malloc(nFrames * sizeof(FRAMEDATA));\r
+       nLastOffset = sizeof(GRPHEADER) + nFrames * sizeof(FRAMEHEADER);\r
+\r
+       for (i = 0; i < nFrames; i++) {\r
+               // Search for duplicate frames\r
+               for (j = 0; j < i; j++) {\r
+                       if (memcmp(&lpImageData[i * wMaxWidth * wMaxHeight],\r
+                                  &lpImageData[j * wMaxWidth * wMaxHeight],\r
+                                          wMaxWidth * wMaxHeight * sizeof(short)) == 0)\r
+                               break;\r
+               }\r
+\r
+               if (j < i) {\r
+                       memcpy(&lpFrameHeaders[i], &lpFrameHeaders[j], sizeof(FRAMEHEADER));\r
+                       lpFrameData[i].lpRowOffsets = 0;\r
+                       continue;\r
+               }\r
+\r
+               lpFrameHeaders[i].Offset = nLastOffset;\r
+\r
+               // Scan frame to find dimensions of used part\r
+               x1 = y1 = 0x10000;\r
+               x2 = y2 = -1;\r
+               for (y = 0; y < wMaxHeight; y++) {\r
+                       for (x = 0; x < wMaxWidth; x++) {\r
+                               if (lpImageData[i * wMaxWidth * wMaxHeight + y * wMaxWidth + x] >= 0) {\r
+                                       if (x < x1) x1 = x;\r
+                                       if (x > x2) x2 = x;\r
+                                       if (y < y1) y1 = y;\r
+                                       if (y > y2) y2 = y;\r
+                               }\r
+                       }\r
+               }\r
+               x2 = x2 - x1 + 1;\r
+               y2 = y2 - y1 + 1;\r
+               if ((WORD)x1 > 255) x1 = 255;\r
+               if ((WORD)y1 > 255) y1 = 255;\r
+               if ((WORD)x2 > 255) x2 = 255;\r
+               if ((WORD)y2 > 255) y2 = 255;\r
+               lpFrameHeaders[i].Left = x1;\r
+               lpFrameHeaders[i].Top = y1;\r
+               lpFrameHeaders[i].Width = x2;\r
+               lpFrameHeaders[i].Height = y2;\r
+\r
+               EncodeFrameData(lpImageData, i, &GrpHeader, &lpFrameHeaders[i], &lpFrameData[i], bNoCompress);\r
+               nLastOffset = lpFrameHeaders[i].Offset + lpFrameData[i].Size;\r
+       }\r
+\r
+       lpGrpData = (LPBYTE)malloc(nLastOffset);\r
+\r
+       // Write completed GRP to buffer\r
+       memcpy(lpGrpData, &GrpHeader, sizeof(GRPHEADER));\r
+       memcpy(lpGrpData + sizeof(GRPHEADER), lpFrameHeaders, nFrames * sizeof(FRAMEHEADER));\r
+\r
+       for (i = 0; i < nFrames; i++) {\r
+               if (lpFrameData[i].lpRowOffsets) {\r
+                       if (!bNoCompress)\r
+                               memcpy(lpGrpData + lpFrameHeaders[i].Offset, lpFrameData[i].lpRowOffsets, lpFrameHeaders[i].Height * sizeof(WORD));\r
+\r
+                       for (y = 0; y < lpFrameHeaders[i].Height; y++) {\r
+                               if (lpFrameData[i].lpRowData[y]) {\r
+                                       memcpy(lpGrpData + lpFrameHeaders[i].Offset + lpFrameData[i].lpRowOffsets[y], lpFrameData[i].lpRowData[y], lpFrameData[i].lpRowSizes[y]);\r
+                                       free(lpFrameData[i].lpRowData[y]);\r
+                               }\r
+                       }\r
+\r
+                       free(lpFrameData[i].lpRowOffsets);\r
+                       free(lpFrameData[i].lpRowSizes);\r
+                       free(lpFrameData[i].lpRowData);\r
+               }\r
+       }\r
+\r
+       free(lpFrameHeaders);\r
+       free(lpFrameData);\r
+\r
+       *nGrpSize = nLastOffset;\r
+       return (HANDLE)lpGrpData;\r
+}\r
+\r
+void EncodeFrameData(signed short *lpImageData, WORD nFrame, GRPHEADER *lpGrpHeader, FRAMEHEADER *lpFrameHeader, FRAMEDATA *lpFrameData, BOOL bNoCompress)\r
+{\r
+       int x, y, i, j, nBufPos, nRepeat;\r
+       LPBYTE lpRowBuf;\r
+       WORD nLastOffset = 0;\r
+\r
+       lpFrameData->lpRowOffsets = (WORD *)malloc(lpFrameHeader->Height * sizeof(WORD));\r
+       lpFrameData->lpRowSizes = (WORD *)malloc(lpFrameHeader->Height * sizeof(WORD));\r
+       lpFrameData->lpRowData = (LPBYTE *)malloc(lpFrameHeader->Height * sizeof(LPBYTE));\r
+       lpRowBuf = (LPBYTE)malloc(lpFrameHeader->Width * 2);\r
+\r
+       if (!bNoCompress)\r
+               nLastOffset = lpFrameHeader->Height * sizeof(WORD);\r
+\r
+       for (y = 0; y < lpFrameHeader->Height; y++) {\r
+               i = nFrame * lpGrpHeader->wMaxWidth * lpGrpHeader->wMaxHeight + (lpFrameHeader->Top + y) * lpGrpHeader->wMaxWidth;\r
+\r
+               if (!bNoCompress) {\r
+                       // Search for duplicate rows\r
+                       for (x = 0; x < y; x++) {\r
+                               j = nFrame * lpGrpHeader->wMaxWidth * lpGrpHeader->wMaxHeight + (lpFrameHeader->Top + x) * lpGrpHeader->wMaxWidth;\r
+                               if (memcmp(&lpImageData[i+lpFrameHeader->Left],\r
+                                                  &lpImageData[j+lpFrameHeader->Left],\r
+                                                  lpGrpHeader->wMaxWidth * sizeof(short)) == 0)\r
+                                       break;\r
+                       }\r
+\r
+                       if (x < y) {\r
+                               lpFrameData->lpRowOffsets[y] = lpFrameData->lpRowOffsets[x];\r
+                               lpFrameData->lpRowSizes[y] = 0;\r
+                               lpFrameData->lpRowData[y] = 0;\r
+\r
+#ifdef _DEBUG\r
+                               if (!VerifyRow(&lpImageData[i+lpFrameHeader->Left], lpFrameHeader->Width, lpFrameData->lpRowData[x], lpFrameData->lpRowSizes[x], bNoCompress)) {\r
+                                       nBufPos = nBufPos;\r
+                               }\r
+#endif\r
+\r
+                               continue;\r
+                       }\r
+               }\r
+\r
+               nBufPos = 0;\r
+               if (lpFrameHeader->Width > 0) {\r
+                       for (x = lpFrameHeader->Left; x < lpFrameHeader->Left + lpFrameHeader->Width; x++) {\r
+                               if (!bNoCompress) {\r
+                                       if (x < lpFrameHeader->Left + lpFrameHeader->Width - 1) {\r
+                                               if (lpImageData[i+x] < 0) {\r
+                                                       lpRowBuf[nBufPos] = 0x80;\r
+                                                       for (; lpImageData[i+x] < 0 && x < lpFrameHeader->Left + lpFrameHeader->Width && lpRowBuf[nBufPos] < 0xFF; x++) {\r
+                                                               lpRowBuf[nBufPos]++;\r
+                                                       }\r
+                                                       x--;\r
+                                                       if (nLastOffset + nBufPos + 1 <= 0xFFFF)\r
+                                                               nBufPos++;\r
+                                                       continue;\r
+                                               }\r
+\r
+                                               // Count repeating pixels, nRepeat = number of pixels - 1, ignore if there are less than 4 duplicates\r
+                                               for (nRepeat = 0; lpImageData[i+x+nRepeat] == lpImageData[i+x+nRepeat+1] && x+nRepeat < lpFrameHeader->Left + lpFrameHeader->Width - 1 && nRepeat < 0x3E; nRepeat++) {}\r
+\r
+                                               if (nRepeat > 2) {\r
+                                                       lpRowBuf[nBufPos] = 0x41 + nRepeat;\r
+                                                       lpRowBuf[nBufPos+1] = (BYTE)(lpImageData[i+x]);\r
+                                                       x += nRepeat;\r
+                                                       if (nLastOffset + nBufPos + 2 <= 0xFFFF)\r
+                                                               nBufPos += 2;\r
+                                               }\r
+                                               else {\r
+                                                       lpRowBuf[nBufPos] = 0;\r
+                                                       for (; lpImageData[i+x] >= 0 && x < lpFrameHeader->Left + lpFrameHeader->Width && lpRowBuf[nBufPos] < 0x3F; x++) {\r
+                                                               // Count repeating pixels, ignore if there are less than 4 duplicates\r
+                                                               for (nRepeat = 0; lpImageData[i+x+nRepeat] == lpImageData[i+x+nRepeat+1] && x+nRepeat < lpFrameHeader->Left + lpFrameHeader->Width - 1 && nRepeat < 3; nRepeat++) {}\r
+                                                               if (nRepeat > 2) break;\r
+\r
+                                                               lpRowBuf[nBufPos]++;\r
+                                                               lpRowBuf[nBufPos+lpRowBuf[nBufPos]] = (BYTE)(lpImageData[i+x]);\r
+                                                       }\r
+                                                       if (lpImageData[i+x] >= 0 && x == lpFrameHeader->Left + lpFrameHeader->Width - 1 && lpRowBuf[nBufPos] < 0x3F) {\r
+                                                               lpRowBuf[nBufPos]++;\r
+                                                               lpRowBuf[nBufPos+lpRowBuf[nBufPos]] = (BYTE)(lpImageData[i+x]);\r
+                                                       }\r
+                                                       x--;\r
+                                                       if (nLastOffset + nBufPos + 1 + lpRowBuf[nBufPos] <= 0xFFFF)\r
+                                                               nBufPos += 1 + lpRowBuf[nBufPos];\r
+                                               }\r
+                                       }\r
+                                       else {\r
+                                               if (lpImageData[i+x] < 0) {\r
+                                                       lpRowBuf[nBufPos] = 0x81;\r
+                                                       if (nLastOffset + nBufPos + 1 <= 0xFFFF)\r
+                                                               nBufPos++;\r
+                                               }\r
+                                               else {\r
+                                                       lpRowBuf[nBufPos] = 1;\r
+                                                       lpRowBuf[nBufPos+1] = (BYTE)(lpImageData[i+x]);\r
+                                                       if (nLastOffset + nBufPos + 2 <= 0xFFFF)\r
+                                                               nBufPos += 2;\r
+                                               }\r
+                                       }\r
+                               }\r
+                               else {\r
+                                       lpRowBuf[nBufPos] = (BYTE)(lpImageData[i+x]);\r
+                                       if (nLastOffset + nBufPos + 1 <= 0xFFFF)\r
+                                               nBufPos++;\r
+                               }\r
+                       }\r
+               }\r
+\r
+#ifdef _DEBUG\r
+               if (!VerifyRow(&lpImageData[i+lpFrameHeader->Left], lpFrameHeader->Width, lpRowBuf, nBufPos, bNoCompress)) {\r
+                       nBufPos = nBufPos;\r
+               }\r
+#endif\r
+\r
+               lpFrameData->lpRowOffsets[y] = nLastOffset;\r
+               nLastOffset = lpFrameData->lpRowOffsets[y] + nBufPos;\r
+\r
+               lpFrameData->lpRowSizes[y] = nBufPos;\r
+               lpFrameData->lpRowData[y] = (LPBYTE)malloc(nBufPos);\r
+               memcpy(lpFrameData->lpRowData[y], lpRowBuf, nBufPos);\r
+       }\r
+\r
+       lpFrameData->Size = nLastOffset;\r
+\r
+       free(lpRowBuf);\r
+}\r
+\r
+#ifdef _DEBUG\r
+BOOL VerifyRow(signed short *lpRawRow, int nWidth, LPBYTE lpEncRow, int nSize, BOOL bNoCompress)\r
+{\r
+       int i,x=0,ofs=0;\r
+       while (x < nWidth && ofs < nSize) {\r
+               if (!bNoCompress) {\r
+                       if (!(lpEncRow[ofs] & 0x80)) {\r
+                               if (!(lpEncRow[ofs] & 0x40)) {\r
+                                       for (i=1;i<=lpEncRow[ofs] && x<nWidth;i++) {\r
+                                               if (lpEncRow[ofs+i] != (BYTE)lpRawRow[x]) return FALSE;\r
+                                               x++;\r
+                                       }\r
+                                       ofs+=lpEncRow[ofs]+1;\r
+                               }\r
+                               else {\r
+                                       for (i=0;i<lpEncRow[ofs]-64 && x<nWidth;i++) {\r
+                                               if (lpEncRow[ofs+1] != (BYTE)lpRawRow[x]) return FALSE;\r
+                                               x++;\r
+                                       }\r
+                                       ofs+=2;\r
+                               }\r
+                       }\r
+                       else {\r
+                               for (i=0;i<lpEncRow[ofs]-128 && x<nWidth;i++) {\r
+                                       if (lpRawRow[x] >= 0) return FALSE;\r
+                               }\r
+                               x+=lpEncRow[ofs]-128;\r
+                               ofs++;\r
+                       }\r
+               }\r
+               else {\r
+                       if (lpEncRow[ofs] != (BYTE)lpRawRow[x]) return FALSE;\r
+                       x++;\r
+                       ofs++;\r
+               }\r
+       }\r
+\r
+       if (x != nWidth || ofs != nSize) return FALSE;\r
+\r
+       return TRUE;\r
+}\r
+#endif\r