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[grpapi.git] / grpapi / grpapi.cpp
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14362b19 1#include "grpapi.h"\r
ecca31ff 2#include "../LoadStorm/storm.h"\r
14362b19 3#include <malloc.h>\r
4\r
5#ifdef GRPAPI_STATIC\r
6#define DllMain GrpMain\r
7\r
8#include "grp_static.h"\r
9\r
10struct GRPLIBMODULE {\r
11 GRPLIBMODULE();\r
12 ~GRPLIBMODULE();\r
13} GrpLib;\r
14\r
15BOOL APIENTRY DllMain(HINSTANCE hInstDLL, DWORD ul_reason_for_call, LPVOID lpReserved);\r
16\r
17GRPLIBMODULE::GRPLIBMODULE()\r
18{\r
19 GrpMain(0,DLL_PROCESS_ATTACH,0);\r
20}\r
21\r
22GRPLIBMODULE::~GRPLIBMODULE()\r
23{\r
24 GrpMain(0,DLL_PROCESS_DETACH,0);\r
25}\r
26\r
27#endif\r
28\r
29typedef struct {\r
30 BYTE Left;\r
31 BYTE Top;\r
32 BYTE Width;\r
33 BYTE Height;\r
34 DWORD Offset;\r
35} FRAMEHEADER;\r
36\r
c483a082 37typedef struct {\r
38 WORD *lpRowOffsets;\r
39 WORD *lpRowSizes;\r
40 LPBYTE *lpRowData;\r
41} FRAMEDATA;\r
42\r
ecca31ff 43GETPIXELPROC MyGetPixel = GetPixel;\r
44SETPIXELPROC MySetPixel = (SETPIXELPROC)SetPixelV;\r
45\r
ff024783 46void __inline SetPix(HDC hDC, int X, int Y, COLORREF clrColor, DWORD *dwPalette, DWORD dwFlags, DWORD dwAlpha);\r
c483a082 47void EncodeFrameData(signed short *lpImageData, WORD nFrame, GRPHEADER *lpGrpHeader, FRAMEHEADER *lpFrameHeader, FRAMEDATA *lpFrameData);\r
0df81049 48BOOL VerifyRow(signed short *lpRawRow, int nWidth, LPBYTE lpEncRow, int nSize);\r
14362b19 49\r
50extern HINSTANCE hStorm;\r
51\r
52BOOL APIENTRY DllMain( HINSTANCE hInstDLL, \r
53 DWORD ul_reason_for_call, \r
54 LPVOID lpReserved\r
55 )\r
56{\r
57 switch (ul_reason_for_call)\r
58 {\r
59 case DLL_PROCESS_ATTACH:\r
60 break;\r
61 case DLL_THREAD_ATTACH:\r
62 break;\r
63 case DLL_THREAD_DETACH:\r
64 break;\r
65 case DLL_PROCESS_DETACH:\r
66 break;\r
67 }\r
68\r
69 return TRUE;\r
70}\r
71\r
72BOOL GRPAPI WINAPI LoadGrpApi()\r
73{\r
ecca31ff 74 if (!hStorm) return FALSE;\r
14362b19 75 else return TRUE;\r
76}\r
77\r
78void GRPAPI WINAPI FreeGrpApi()\r
79{\r
80}\r
81\r
d8c90836 82/*\r
83HANDLE hProcessHeap = NULL;\r
84\r
85void * SFAlloc(size_t nSize)\r
86{\r
87 if (!hProcessHeap) hProcessHeap = GetProcessHeap();\r
88 if (hProcessHeap) return HeapAlloc(hProcessHeap, 0, nSize);\r
89 else return NULL;\r
90}\r
91\r
92void SFFree(void *lpMem)\r
93{\r
94 if (!hProcessHeap) hProcessHeap = GetProcessHeap();\r
95 if (hProcessHeap) HeapFree(hProcessHeap, 0, lpMem);\r
96}\r
97*/\r
98\r
ecca31ff 99BOOL GRPAPI WINAPI SetMpqDll(LPCSTR lpDllFileName)\r
100{\r
101 if (LoadStorm((char *)lpDllFileName)) return TRUE;\r
102 else return FALSE;\r
103}\r
104\r
14362b19 105BOOL GRPAPI WINAPI LoadPalette(LPCSTR lpFileName, DWORD *dwPaletteBuffer)\r
106{\r
ecca31ff 107 if (!lpFileName || !dwPaletteBuffer) return FALSE;\r
14362b19 108 HANDLE hFile;\r
ecca31ff 109 if (SFileOpenFileEx && SFileGetFileSize\r
110 && SFileSetFilePointer && SFileReadFile\r
111 && SFileCloseFile) {\r
112 if (!SFileOpenFileEx(0,lpFileName,1,&hFile)) return FALSE;\r
14362b19 113 DWORD fsz = SFileGetFileSize(hFile,0);\r
114 SFileSetFilePointer(hFile,0,0,FILE_BEGIN);\r
115 if (fsz>=1024) {\r
116 memset(dwPaletteBuffer,0,1024);\r
117 SFileReadFile(hFile,dwPaletteBuffer,1024,0,0);\r
118 }\r
119 else if (fsz==768) {\r
120 char *buffer = (char *)_alloca(768);\r
121 memset(buffer,0,768);\r
122 SFileReadFile(hFile,buffer,768,0,0);\r
123 for (DWORD i=0;i<256;i++) {\r
124 memcpy(&dwPaletteBuffer[i],buffer+i*3,3);\r
125 *(((char *)&dwPaletteBuffer[i])+3) = 0;\r
126 }\r
127 }\r
128 else {\r
129 memset(dwPaletteBuffer,0,1024);\r
130 SFileReadFile(hFile,dwPaletteBuffer,fsz,0,0);\r
131 }\r
132 SFileCloseFile(hFile);\r
133 }\r
134 else {\r
135 hFile = CreateFile(lpFileName,GENERIC_READ,FILE_SHARE_READ,0,OPEN_EXISTING,0,0);\r
136 if (hFile==INVALID_HANDLE_VALUE) return FALSE;\r
137 DWORD fsz = GetFileSize(hFile,0),tsz;\r
138 SetFilePointer(hFile,0,0,FILE_BEGIN);\r
139 if (fsz>=1024) {\r
140 memset(dwPaletteBuffer,0,1024);\r
141 ReadFile(hFile,dwPaletteBuffer,1024,&tsz,0);\r
142 }\r
143 else if (fsz==768) {\r
144 char *buffer = (char *)_alloca(768);\r
145 memset(buffer,0,768);\r
146 ReadFile(hFile,buffer,768,&tsz,0);\r
147 for (DWORD i=0;i<256;i++) {\r
148 memcpy(&dwPaletteBuffer[i],buffer+i*3,3);\r
149 *(((char *)&dwPaletteBuffer[i])+3) = 0;\r
150 }\r
151 }\r
152 else {\r
153 memset(dwPaletteBuffer,0,1024);\r
154 ReadFile(hFile,dwPaletteBuffer,fsz,&tsz,0);\r
155 }\r
156 CloseHandle(hFile);\r
157 }\r
158 return TRUE;\r
159}\r
160\r
161HANDLE GRPAPI WINAPI LoadGrp(LPCSTR lpFileName)\r
162{\r
ecca31ff 163 if (!lpFileName) return (HANDLE)-1;\r
14362b19 164 HANDLE hFile;\r
165 char *GrpFile;\r
ecca31ff 166 if (SFileOpenFileEx && SFileGetFileSize\r
167 && SFileSetFilePointer && SFileReadFile\r
168 && SFileCloseFile) {\r
169 if (!SFileOpenFileEx(0,lpFileName,1,&hFile)) return (HANDLE)-1;\r
14362b19 170 DWORD fsz = SFileGetFileSize(hFile,0);\r
171 if (fsz<6) {\r
172 SFileCloseFile(hFile);\r
173 return (HANDLE)-1;\r
174 }\r
afcd1861 175 GrpFile = (char *)malloc(fsz);\r
ecca31ff 176 if (GrpFile) {\r
14362b19 177 SFileSetFilePointer(hFile,0,0,FILE_BEGIN);\r
178 SFileReadFile(hFile,GrpFile,fsz,0,0);\r
179 }\r
180 else GrpFile=(char *)-1;\r
181 SFileCloseFile(hFile);\r
182 }\r
183 else {\r
184 hFile = CreateFile(lpFileName,GENERIC_READ,FILE_SHARE_READ,0,OPEN_EXISTING,0,0);\r
185 if (hFile==INVALID_HANDLE_VALUE) return (HANDLE)-1;\r
186 DWORD fsz = GetFileSize(hFile,0),tsz;\r
187 if (fsz<6) {\r
188 CloseHandle(hFile);\r
189 return (HANDLE)-1;\r
190 }\r
afcd1861 191 GrpFile = (char *)malloc(fsz);\r
ecca31ff 192 if (GrpFile) {\r
14362b19 193 SetFilePointer(hFile,0,0,FILE_BEGIN);\r
194 ReadFile(hFile,GrpFile,fsz,&tsz,0);\r
195 }\r
196 else GrpFile=(char *)-1;\r
197 CloseHandle(hFile);\r
198 }\r
199 return (HANDLE)GrpFile;\r
200}\r
201\r
202BOOL GRPAPI WINAPI DestroyGrp(HANDLE hGrp)\r
203{\r
ecca31ff 204 if (!hGrp || hGrp==INVALID_HANDLE_VALUE) return FALSE;\r
afcd1861 205 free(hGrp);\r
14362b19 206 return TRUE;\r
207}\r
208\r
209BOOL GRPAPI WINAPI DrawGrp(HANDLE hGrp, HDC hdcDest, int nXDest, int nYDest, WORD nFrame, DWORD *dwPalette, DWORD dwFlags, DWORD dwAlpha)\r
210{\r
c483a082 211 if (!hGrp || hGrp==INVALID_HANDLE_VALUE || hdcDest==0 || (!dwPalette && !(dwFlags&USE_INDEX))) return FALSE;\r
14362b19 212 GRPHEADER *GrpFile = (GRPHEADER *)hGrp;\r
213 nFrame %= GrpFile->nFrames;\r
214 FRAMEHEADER *GrpFrame = &((FRAMEHEADER *)(((char *)GrpFile)+6))[nFrame];\r
2975ca34 215 FRAMEHEADER *GrpFrames = &((FRAMEHEADER *)(((char *)GrpFile)+6))[0];\r
216 int FrameSize = 0xFFFFFF;\r
14362b19 217 DWORD Right,Bottom;\r
218 if (dwFlags&HORIZONTAL_FLIP) Right = nXDest+GrpFile->wMaxWidth-1-GrpFrame->Left;\r
219 if (dwFlags&VERTICAL_FLIP) Bottom = nYDest+GrpFile->wMaxHeight-1-GrpFrame->Top;\r
220 nXDest += GrpFrame->Left;\r
221 nYDest += GrpFrame->Top;\r
222 WORD *GrpOffsets = ((WORD *)(((char *)GrpFile)+GrpFrame->Offset));\r
2975ca34 223 BYTE *GrpRaw = (BYTE *)GrpOffsets;\r
ecca31ff 224 BYTE *RowData;\r
225 WORD x,ofs;\r
226 DWORD y;\r
227 WORD i;\r
2975ca34 228 int j;\r
229 if (nFrame + 1 < GrpFile->nFrames) {\r
230 for (i = 0; i + 1 < GrpFile->nFrames; i++) {\r
231 j = GrpFrames[i].Offset - GrpFrame->Offset;\r
232 if (j > 0 && j < FrameSize)\r
233 FrameSize = j;\r
234 }\r
235 }\r
a93929e5 236 if (FrameSize == 0xFFFFFF || FrameSize == GrpFrame->Width * GrpFrame->Height) {\r
237 FrameSize = 0xFFFFFF;\r
2975ca34 238 for (i = 0; i + 1 < GrpFile->nFrames; i++) {\r
239 j = GrpFrames[i].Offset - GrpFrames[0].Offset;\r
240 if (j > 0 && j < FrameSize)\r
241 FrameSize = j;\r
242 }\r
243 if (FrameSize == GrpFrames[0].Width * GrpFrames[0].Height)\r
244 FrameSize = GrpFrame->Width * GrpFrame->Height;\r
245 }\r
ecca31ff 246 if (!(dwFlags&HORIZONTAL_FLIP) && !(dwFlags&VERTICAL_FLIP)) {\r
2975ca34 247 if (FrameSize != GrpFrame->Width * GrpFrame->Height) {\r
248 for (y=0;y<GrpFrame->Height;y++) {\r
249 RowData = ((BYTE *)(((char *)GrpOffsets)+GrpOffsets[y]));\r
250 x=0; ofs=0;\r
251 while (x<GrpFrame->Width) {\r
252 if (!(RowData[ofs] & 0x80)) {\r
253 if (!(RowData[ofs] & 0x40)) {\r
254 for (i=1;i<=RowData[ofs] && x<GrpFrame->Width;i++) {\r
ff024783 255 SetPix(hdcDest,nXDest+x,nYDest+y,RowData[ofs+i],dwPalette,dwFlags,dwAlpha);\r
2975ca34 256 x++;\r
257 }\r
258 ofs+=RowData[ofs]+1;\r
259 }\r
260 else {\r
261 for (i=0;i<RowData[ofs]-64 && x<GrpFrame->Width;i++) {\r
ff024783 262 SetPix(hdcDest,nXDest+x,nYDest+y,RowData[ofs+1],dwPalette,dwFlags,dwAlpha);\r
2975ca34 263 x++;\r
264 }\r
265 ofs+=2;\r
ecca31ff 266 }\r
14362b19 267 }\r
ecca31ff 268 else {\r
2975ca34 269 x+=RowData[ofs]-128;\r
270 ofs++;\r
14362b19 271 }\r
272 }\r
2975ca34 273 }\r
274 }\r
275 else {\r
276 for (y=0;y<GrpFrame->Height;y++) {\r
277 for (x=0;x<GrpFrame->Width;x++) {\r
ff024783 278 SetPix(hdcDest,nXDest+x,nYDest+y,GrpRaw[y * GrpFrame->Width + x],dwPalette,dwFlags,dwAlpha);\r
ecca31ff 279 }\r
280 }\r
281 }\r
282 }\r
283 else if (dwFlags&HORIZONTAL_FLIP && !(dwFlags&VERTICAL_FLIP)) {\r
2975ca34 284 if (FrameSize != GrpFrame->Width * GrpFrame->Height) {\r
285 for (y=0;y<GrpFrame->Height;y++) {\r
286 RowData = ((BYTE *)(((char *)GrpOffsets)+GrpOffsets[y]));\r
287 x=0; ofs=0;\r
288 while (x<GrpFrame->Width) {\r
289 if (!(RowData[ofs] & 0x80)) {\r
290 if (!(RowData[ofs] & 0x40)) {\r
291 for (i=1;i<=RowData[ofs] && x<GrpFrame->Width;i++) {\r
ff024783 292 SetPix(hdcDest,Right-x,nYDest+y,RowData[ofs+i],dwPalette,dwFlags,dwAlpha);\r
2975ca34 293 x++;\r
294 }\r
295 ofs+=RowData[ofs]+1;\r
296 }\r
297 else {\r
298 for (i=0;i<RowData[ofs]-64 && x<GrpFrame->Width;i++) {\r
ff024783 299 SetPix(hdcDest,Right-x,nYDest+y,RowData[ofs+1],dwPalette,dwFlags,dwAlpha);\r
2975ca34 300 x++;\r
301 }\r
302 ofs+=2;\r
ecca31ff 303 }\r
ecca31ff 304 }\r
305 else {\r
2975ca34 306 x+=RowData[ofs]-128;\r
307 ofs++;\r
14362b19 308 }\r
309 }\r
2975ca34 310 }\r
311 }\r
312 else {\r
313 for (y=0;y<GrpFrame->Height;y++) {\r
314 for (x=0;x<GrpFrame->Width;x++) {\r
ff024783 315 SetPix(hdcDest,Right-x,nYDest+y,GrpRaw[y * GrpFrame->Width + x],dwPalette,dwFlags,dwAlpha);\r
14362b19 316 }\r
14362b19 317 }\r
ecca31ff 318 }\r
319 }\r
320 else if (!(dwFlags&HORIZONTAL_FLIP) && dwFlags&VERTICAL_FLIP) {\r
2975ca34 321 if (FrameSize != GrpFrame->Width * GrpFrame->Height) {\r
322 for (y=0;y<GrpFrame->Height;y++) {\r
323 RowData = ((BYTE *)(((char *)GrpOffsets)+GrpOffsets[y]));\r
324 x=0; ofs=0;\r
325 while (x<GrpFrame->Width) {\r
326 if (!(RowData[ofs] & 0x80)) {\r
327 if (!(RowData[ofs] & 0x40)) {\r
328 for (i=1;i<=RowData[ofs] && x<GrpFrame->Width;i++) {\r
ff024783 329 SetPix(hdcDest,nXDest+x,Bottom-y,RowData[ofs+i],dwPalette,dwFlags,dwAlpha);\r
2975ca34 330 x++;\r
331 }\r
332 ofs+=RowData[ofs]+1;\r
333 }\r
334 else {\r
335 for (i=0;i<RowData[ofs]-64 && x<GrpFrame->Width;i++) {\r
ff024783 336 SetPix(hdcDest,nXDest+x,Bottom-y,RowData[ofs+1],dwPalette,dwFlags,dwAlpha);\r
2975ca34 337 x++;\r
338 }\r
339 ofs+=2;\r
ecca31ff 340 }\r
14362b19 341 }\r
ecca31ff 342 else {\r
2975ca34 343 x+=RowData[ofs]-128;\r
344 ofs++;\r
14362b19 345 }\r
346 }\r
2975ca34 347 }\r
348 }\r
349 else {\r
350 for (y=0;y<GrpFrame->Height;y++) {\r
351 for (x=0;x<GrpFrame->Width;x++) {\r
ff024783 352 SetPix(hdcDest,nXDest+x,Bottom-y,GrpRaw[y * GrpFrame->Width + x],dwPalette,dwFlags,dwAlpha);\r
ecca31ff 353 }\r
354 }\r
355 }\r
356 }\r
357 else {\r
2975ca34 358 if (FrameSize != GrpFrame->Width * GrpFrame->Height) {\r
359 for (y=0;y<GrpFrame->Height;y++) {\r
360 RowData = ((BYTE *)(((char *)GrpOffsets)+GrpOffsets[y]));\r
361 x=0; ofs=0;\r
362 while (x<GrpFrame->Width) {\r
363 if (!(RowData[ofs] & 0x80)) {\r
364 if (!(RowData[ofs] & 0x40)) {\r
365 for (i=1;i<=RowData[ofs] && x<GrpFrame->Width;i++) {\r
ff024783 366 SetPix(hdcDest,Right-x,Bottom-y,RowData[ofs+i],dwPalette,dwFlags,dwAlpha);\r
2975ca34 367 x++;\r
368 }\r
369 ofs+=RowData[ofs]+1;\r
370 }\r
371 else {\r
372 for (i=0;i<RowData[ofs]-64 && x<GrpFrame->Width;i++) {\r
ff024783 373 SetPix(hdcDest,Right-x,Bottom-y,RowData[ofs+1],dwPalette,dwFlags,dwAlpha);\r
2975ca34 374 x++;\r
375 }\r
376 ofs+=2;\r
ecca31ff 377 }\r
ecca31ff 378 }\r
379 else {\r
2975ca34 380 x+=RowData[ofs]-128;\r
381 ofs++;\r
14362b19 382 }\r
383 }\r
2975ca34 384 }\r
385 }\r
386 else {\r
387 for (y=0;y<GrpFrame->Height;y++) {\r
388 for (x=0;x<GrpFrame->Width;x++) {\r
ff024783 389 SetPix(hdcDest,Right-x,Bottom-y,GrpRaw[y * GrpFrame->Width + x],dwPalette,dwFlags,dwAlpha);\r
14362b19 390 }\r
14362b19 391 }\r
392 }\r
393 }\r
394 return TRUE;\r
395}\r
396\r
397BOOL GRPAPI WINAPI GetGrpInfo(HANDLE hGrp, GRPHEADER *GrpInfo)\r
398{\r
ecca31ff 399 if (!hGrp || hGrp==INVALID_HANDLE_VALUE || !GrpInfo) return FALSE;\r
14362b19 400 memcpy(GrpInfo,hGrp,6);\r
401 return TRUE;\r
402}\r
403\r
6ae30656 404BOOL GRPAPI WINAPI GetGrpFrameInfo(HANDLE hGrp, WORD nFrame, DWORD *nLeft, DWORD *nTop, DWORD *nWidth, DWORD *nHeight)\r
405{\r
406 if (!hGrp || hGrp==INVALID_HANDLE_VALUE) return FALSE;\r
407 FRAMEHEADER *GrpFrame = &((FRAMEHEADER *)(((char *)hGrp)+6))[nFrame];\r
408\r
409 if (nLeft) *nLeft = GrpFrame->Left;\r
410 if (nTop) *nTop = GrpFrame->Top;\r
411 if (nWidth) *nWidth = GrpFrame->Width;\r
412 if (nHeight) *nHeight = GrpFrame->Height;\r
413\r
414 return TRUE;\r
415}\r
416\r
ecca31ff 417void GRPAPI WINAPI SetFunctionGetPixel(GETPIXELPROC lpGetPixelProc)\r
418{\r
afcd1861 419 if (!lpGetPixelProc)\r
420 MyGetPixel = GetPixel;\r
421 else\r
422 MyGetPixel = lpGetPixelProc;\r
ecca31ff 423}\r
424\r
425void GRPAPI WINAPI SetFunctionSetPixel(SETPIXELPROC lpSetPixelProc)\r
426{\r
afcd1861 427 if (!lpSetPixelProc)\r
428 MySetPixel = (SETPIXELPROC)SetPixelV;\r
429 else\r
430 MySetPixel = lpSetPixelProc;\r
ecca31ff 431}\r
432\r
ff024783 433void __inline SetPix(HDC hDC, int X, int Y, COLORREF clrColor, DWORD *dwPalette, DWORD dwFlags, DWORD dwAlpha)\r
14362b19 434{\r
ff024783 435 if (!(dwFlags&USE_INDEX)) {\r
436 if (dwFlags&SHADOW_COLOR) {\r
437 clrColor = (dwFlags >> 8) & 0x00FFFFFF;\r
438 }\r
439 else {\r
440 clrColor = dwPalette[clrColor];\r
441 }\r
442 if (dwFlags&ALPHA_BLEND) {\r
443 DWORD dwColor = MyGetPixel(hDC,X,Y);\r
14362b19 444\r
ff024783 445 // Old alpha\r
446 /*((BYTE *)&dwColor)[0]*=1-((float)((BYTE *)&dwAlpha)[0]/256);\r
447 ((BYTE *)&dwColor)[1]*=1-((float)((BYTE *)&dwAlpha)[1]/256);\r
448 ((BYTE *)&dwColor)[2]*=1-((float)((BYTE *)&dwAlpha)[2]/256);\r
449 ((BYTE *)&clrColor)[0]*=(float)((BYTE *)&dwAlpha)[0]/256;\r
450 ((BYTE *)&clrColor)[1]*=(float)((BYTE *)&dwAlpha)[1]/256;\r
451 ((BYTE *)&clrColor)[2]*=(float)((BYTE *)&dwAlpha)[2]/256;\r
452 ((BYTE *)&clrColor)[0]+=((BYTE *)&dwColor)[0];\r
453 ((BYTE *)&clrColor)[1]+=((BYTE *)&dwColor)[1];\r
454 ((BYTE *)&clrColor)[2]+=((BYTE *)&dwColor)[2];*/\r
14362b19 455\r
ff024783 456 /* blendedcolor =\r
457 ( ( forecolor * ( 1 - alpha ) ) >> 8 )\r
458 + ( ( backcolor * ( 256 - alpha ) ) >> 8 ) */\r
459 ((BYTE *)&clrColor)[0] =\r
460 ( ( ((BYTE *)&clrColor)[0] * ( ((BYTE *)&dwAlpha)[0] + 1 ) ) >> 8 )\r
461 + ( ( ((BYTE *)&dwColor)[0] * ( 256 - ((BYTE *)&dwAlpha)[0] ) ) >> 8 );\r
462 ((BYTE *)&clrColor)[1] =\r
463 ( ( ((BYTE *)&clrColor)[1] * ( ((BYTE *)&dwAlpha)[1] + 1 ) ) >> 8 )\r
464 + ( ( ((BYTE *)&dwColor)[1] * ( 256 - ((BYTE *)&dwAlpha)[1] ) ) >> 8 );\r
465 ((BYTE *)&clrColor)[2] =\r
466 ( ( ((BYTE *)&clrColor)[2] * ( ((BYTE *)&dwAlpha)[2] + 1 ) ) >> 8 )\r
467 + ( ( ((BYTE *)&dwColor)[2] * ( 256 - ((BYTE *)&dwAlpha)[2] ) ) >> 8 );\r
468 }\r
14362b19 469 }\r
ecca31ff 470 MySetPixel(hDC,X,Y,clrColor);\r
14362b19 471}\r
c483a082 472\r
03269fee 473HANDLE GRPAPI WINAPI CreateGrp(signed short *lpImageData, WORD nFrames, WORD wMaxWidth, WORD wMaxHeight, BOOL bNoCompress, DWORD *nGrpSize)\r
c483a082 474{\r
475 GRPHEADER GrpHeader;\r
476 FRAMEHEADER *lpFrameHeaders;\r
477 FRAMEDATA *lpFrameData;\r
478 LPBYTE lpGrpData;\r
0df81049 479 int i, j, x, y, x1, x2, y1, y2;\r
480 DWORD nLastOffset;\r
c483a082 481\r
482 if (!lpImageData || !nGrpSize) return (HANDLE)-1;\r
483\r
484 GrpHeader.nFrames = nFrames;\r
485 GrpHeader.wMaxWidth = wMaxWidth;\r
486 GrpHeader.wMaxHeight = wMaxHeight;\r
0df81049 487 lpFrameHeaders = (FRAMEHEADER *)malloc(nFrames * sizeof(FRAMEHEADER));\r
c483a082 488 lpFrameData = (FRAMEDATA *)malloc(nFrames * sizeof(FRAMEDATA));\r
72348a2d 489 nLastOffset = sizeof(GRPHEADER) + nFrames * sizeof(FRAMEHEADER);\r
c483a082 490\r
0df81049 491 for (i = 0; i < nFrames; i++) {\r
492 // Search for duplicate frames\r
493 for (j = 0; j < i; j++) {\r
494 if (memcmp(&lpImageData[i * wMaxWidth * wMaxHeight],\r
495 &lpImageData[j * wMaxWidth * wMaxHeight],\r
496 wMaxWidth * wMaxHeight * sizeof(short)) == 0)\r
497 break;\r
498 }\r
499\r
500 if (j < i) {\r
501 memcpy(&lpFrameHeaders[i], &lpFrameHeaders[j], sizeof(FRAMEHEADER));\r
ec637542 502 lpFrameData[i].lpRowOffsets = 0;\r
0df81049 503 continue;\r
504 }\r
505\r
c483a082 506 if (i == 0) {\r
507 lpFrameHeaders[i].Offset = sizeof(GRPHEADER) + nFrames * sizeof(FRAMEHEADER);\r
508 }\r
509 else {\r
0df81049 510 lpFrameHeaders[i].Offset = nLastOffset;\r
c483a082 511 }\r
c483a082 512\r
513 // Scan frame to find dimensions of used part\r
514 x1 = y1 = 0x10000;\r
515 x2 = y2 = -1;\r
516 for (y = 0; y < wMaxHeight; y++) {\r
517 for (x = 0; x < wMaxWidth; x++) {\r
518 if (lpImageData[i * wMaxWidth * wMaxHeight + y * wMaxWidth + x] >= 0) {\r
519 if (x < x1) x1 = x;\r
520 if (x > x2) x2 = x;\r
521 if (y < y1) y1 = y;\r
522 if (y > y2) y2 = y;\r
523 }\r
524 }\r
525 }\r
9492b9e6 526 x2 = x2 - x1 + 1;\r
527 y2 = y2 - y1 + 1;\r
528 if ((WORD)x1 > 255) x1 = 255;\r
529 if ((WORD)y1 > 255) y1 = 255;\r
530 if ((WORD)x2 > 255) x2 = 255;\r
531 if ((WORD)y2 > 255) y2 = 255;\r
c483a082 532 lpFrameHeaders[i].Left = x1;\r
533 lpFrameHeaders[i].Top = y1;\r
9492b9e6 534 lpFrameHeaders[i].Width = x2;\r
535 lpFrameHeaders[i].Height = y2;\r
c483a082 536\r
03269fee 537 if (!bNoCompress) {\r
538 EncodeFrameData(lpImageData, i, &GrpHeader, &lpFrameHeaders[i], &lpFrameData[i]);\r
0df81049 539\r
03269fee 540 y = lpFrameHeaders[i].Height;\r
541 if (y > 0) {\r
542 y--;\r
543 nLastOffset = lpFrameHeaders[i].Offset + lpFrameData[i].lpRowOffsets[y] + lpFrameData[i].lpRowSizes[y];\r
544 }\r
545 else {\r
546 nLastOffset = lpFrameHeaders[i].Offset;\r
547 }\r
0df81049 548 }\r
549 else {\r
03269fee 550 nLastOffset = lpFrameHeaders[i].Offset + lpFrameHeaders[i].Width * lpFrameHeaders[i].Height;\r
0df81049 551 }\r
c483a082 552 }\r
553\r
0df81049 554 lpGrpData = (LPBYTE)malloc(nLastOffset);\r
c483a082 555\r
556 // Write completed GRP to buffer\r
557 memcpy(lpGrpData, &GrpHeader, sizeof(GRPHEADER));\r
558 memcpy(lpGrpData + sizeof(GRPHEADER), lpFrameHeaders, nFrames * sizeof(FRAMEHEADER));\r
559\r
560 for (i = 0; i < nFrames; i++) {\r
ec637542 561 if (lpFrameData[i].lpRowOffsets) {\r
03269fee 562 if (!bNoCompress) {\r
563 memcpy(lpGrpData + lpFrameHeaders[i].Offset, lpFrameData[i].lpRowOffsets, lpFrameHeaders[i].Height * sizeof(WORD));\r
c483a082 564\r
03269fee 565 for (y = 0; y < lpFrameHeaders[i].Height; y++) {\r
566 if (lpFrameData[i].lpRowData[y]) {\r
567 memcpy(lpGrpData + lpFrameHeaders[i].Offset + lpFrameData[i].lpRowOffsets[y], lpFrameData[i].lpRowData[y], lpFrameData[i].lpRowSizes[y]);\r
568 free(lpFrameData[i].lpRowData[y]);\r
569 }\r
ec637542 570 }\r
0df81049 571\r
03269fee 572 free(lpFrameData[i].lpRowOffsets);\r
573 free(lpFrameData[i].lpRowSizes);\r
574 free(lpFrameData[i].lpRowData);\r
575 }\r
576 else {\r
577 for (y = 0; y < lpFrameHeaders[i].Height; y++) {\r
578 for (x = 0; x < lpFrameHeaders[i].Width; x++) {\r
579 lpGrpData[lpFrameHeaders[i].Offset + y * lpFrameHeaders[i].Width + x] =\r
f7234247 580 (BYTE)lpImageData[i * wMaxWidth * wMaxHeight + (lpFrameHeaders[i].Top + y) * wMaxWidth + lpFrameHeaders[i].Left + x];\r
03269fee 581 }\r
582 }\r
583 }\r
0df81049 584 }\r
c483a082 585 }\r
586\r
c483a082 587 free(lpFrameHeaders);\r
588 free(lpFrameData);\r
589\r
0df81049 590 *nGrpSize = nLastOffset;\r
c483a082 591 return (HANDLE)lpGrpData;\r
592}\r
593\r
594void EncodeFrameData(signed short *lpImageData, WORD nFrame, GRPHEADER *lpGrpHeader, FRAMEHEADER *lpFrameHeader, FRAMEDATA *lpFrameData)\r
595{\r
f7234247 596 int x, y, i, nBufPos, nRepeat;\r
c483a082 597 LPBYTE lpRowBuf;\r
ec637542 598 WORD nLastOffset;\r
c483a082 599\r
600 lpFrameData->lpRowOffsets = (WORD *)malloc(lpFrameHeader->Height * sizeof(WORD));\r
601 lpFrameData->lpRowSizes = (WORD *)malloc(lpFrameHeader->Height * sizeof(WORD));\r
602 lpFrameData->lpRowData = (LPBYTE *)malloc(lpFrameHeader->Height * sizeof(LPBYTE));\r
603 lpRowBuf = (LPBYTE)malloc(lpFrameHeader->Width * 2);\r
d8c90836 604 nLastOffset = lpFrameHeader->Height * sizeof(WORD);\r
c483a082 605\r
606 for (y = 0; y < lpFrameHeader->Height; y++) {\r
607 i = nFrame * lpGrpHeader->wMaxWidth * lpGrpHeader->wMaxHeight + (lpFrameHeader->Top + y) * lpGrpHeader->wMaxWidth;\r
ec637542 608\r
609 /* Fails verification when using this. Bug in encoder or decoder? Doesn't provide much benefit.\r
03269fee 610 // Search for duplicate rows (experimental)\r
ec637542 611 for (x = 0; x < y; x++) {\r
612 j = nFrame * lpGrpHeader->wMaxWidth * lpGrpHeader->wMaxHeight + (lpFrameHeader->Top + x) * lpGrpHeader->wMaxWidth;\r
613 if (memcmp(&lpImageData[i+lpFrameHeader->Left],\r
614 &lpImageData[j+lpFrameHeader->Left],\r
615 lpGrpHeader->wMaxWidth * sizeof(short)) == 0)\r
616 break;\r
617 }\r
618\r
619 if (x < y) {\r
620 lpFrameData->lpRowOffsets[y] = lpFrameData->lpRowOffsets[x];\r
621 lpFrameData->lpRowSizes[y] = 0;\r
622 lpFrameData->lpRowData[y] = 0;\r
623\r
624#ifdef _DEBUG\r
625 if (!VerifyRow(&lpImageData[i+lpFrameHeader->Left], lpFrameHeader->Width, lpFrameData->lpRowData[x], lpFrameData->lpRowSizes[x])) {\r
626 nBufPos = nBufPos;\r
627 }\r
628#endif\r
629\r
630 continue;\r
631 }\r
632 */\r
633\r
c483a082 634 nBufPos = 0;\r
0df81049 635 if (lpFrameHeader->Width > 0) {\r
636 for (x = lpFrameHeader->Left; x < lpFrameHeader->Left + lpFrameHeader->Width; x++) {\r
637 if (x < lpFrameHeader->Left + lpFrameHeader->Width - 1) {\r
638 if (lpImageData[i+x] < 0) {\r
639 lpRowBuf[nBufPos] = 0x80;\r
640 for (; lpImageData[i+x] < 0 && x < lpFrameHeader->Left + lpFrameHeader->Width && lpRowBuf[nBufPos] < 0xFF; x++) {\r
641 lpRowBuf[nBufPos]++;\r
642 }\r
643 x--;\r
d8c90836 644 if (nLastOffset + nBufPos + 1 <= 0xFFFF)\r
645 nBufPos++;\r
0df81049 646 continue;\r
c483a082 647 }\r
0df81049 648\r
649 // Count repeating pixels, nRepeat = number of pixels - 1, ignore if there are less than 4 duplicates\r
58a8b78c 650 for (nRepeat = 0; lpImageData[i+x+nRepeat] == lpImageData[i+x+nRepeat+1] && x+nRepeat < lpFrameHeader->Left + lpFrameHeader->Width - 1 && nRepeat < 0x3E; nRepeat++) {}\r
0df81049 651\r
652 if (nRepeat > 2) {\r
653 lpRowBuf[nBufPos] = 0x41 + nRepeat;\r
654 lpRowBuf[nBufPos+1] = (BYTE)lpImageData[i+x];\r
655 x += nRepeat;\r
d8c90836 656 if (nLastOffset + nBufPos + 2 <= 0xFFFF)\r
657 nBufPos += 2;\r
0df81049 658 }\r
659 else {\r
660 lpRowBuf[nBufPos] = 0;\r
661 for (; lpImageData[i+x] >= 0 && x < lpFrameHeader->Left + lpFrameHeader->Width && lpRowBuf[nBufPos] < 0x3F; x++) {\r
662 // Count repeating pixels, ignore if there are less than 4 duplicates\r
663 for (nRepeat = 0; lpImageData[i+x+nRepeat] == lpImageData[i+x+nRepeat+1] && x+nRepeat < lpFrameHeader->Left + lpFrameHeader->Width - 1 && nRepeat < 3; nRepeat++) {}\r
664 if (nRepeat > 2) break;\r
665\r
666 lpRowBuf[nBufPos]++;\r
667 lpRowBuf[nBufPos+lpRowBuf[nBufPos]] = (BYTE)lpImageData[i+x];\r
668 }\r
669 if (lpImageData[i+x] >= 0 && x == lpFrameHeader->Left + lpFrameHeader->Width - 1 && lpRowBuf[nBufPos] < 0x3F) {\r
670 lpRowBuf[nBufPos]++;\r
671 lpRowBuf[nBufPos+lpRowBuf[nBufPos]] = (BYTE)lpImageData[i+x];\r
672 }\r
673 x--;\r
d8c90836 674 if (nLastOffset + nBufPos + 1 + lpRowBuf[nBufPos] <= 0xFFFF)\r
675 nBufPos += 1 + lpRowBuf[nBufPos];\r
c483a082 676 }\r
c483a082 677 }\r
678 else {\r
0df81049 679 if (lpImageData[i+x] < 0) {\r
680 lpRowBuf[nBufPos] = 0x81;\r
d8c90836 681 if (nLastOffset + nBufPos + 1 <= 0xFFFF)\r
682 nBufPos++;\r
0df81049 683 }\r
684 else {\r
685 lpRowBuf[nBufPos] = 1;\r
686 lpRowBuf[nBufPos+1] = (BYTE)lpImageData[i+x];\r
d8c90836 687 if (nLastOffset + nBufPos + 2 <= 0xFFFF)\r
688 nBufPos += 2;\r
c483a082 689 }\r
c483a082 690 }\r
691 }\r
692 }\r
0df81049 693\r
694#ifdef _DEBUG\r
695 if (!VerifyRow(&lpImageData[i+lpFrameHeader->Left], lpFrameHeader->Width, lpRowBuf, nBufPos)) {\r
696 nBufPos = nBufPos;\r
c483a082 697 }\r
0df81049 698#endif\r
c483a082 699\r
700 if (y == 0) {\r
701 lpFrameData->lpRowOffsets[y] = lpFrameHeader->Height * sizeof(WORD);\r
702 }\r
703 else {\r
ec637542 704 lpFrameData->lpRowOffsets[y] = nLastOffset;\r
c483a082 705 }\r
706\r
ec637542 707 nLastOffset = lpFrameData->lpRowOffsets[y] + nBufPos;\r
708\r
c483a082 709 lpFrameData->lpRowSizes[y] = nBufPos;\r
710 lpFrameData->lpRowData[y] = (LPBYTE)malloc(nBufPos);\r
711 memcpy(lpFrameData->lpRowData[y], lpRowBuf, nBufPos);\r
712 }\r
713\r
714 free(lpRowBuf);\r
715}\r
0df81049 716\r
717#ifdef _DEBUG\r
718BOOL VerifyRow(signed short *lpRawRow, int nWidth, LPBYTE lpEncRow, int nSize)\r
719{\r
720 int i,x=0,ofs=0;\r
721 while (x < nWidth && ofs < nSize) {\r
722 if (!(lpEncRow[ofs] & 0x80)) {\r
723 if (!(lpEncRow[ofs] & 0x40)) {\r
724 for (i=1;i<=lpEncRow[ofs] && x<nWidth;i++) {\r
725 if (lpEncRow[ofs+i] != (BYTE)lpRawRow[x]) return FALSE;\r
726 x++;\r
727 }\r
728 ofs+=lpEncRow[ofs]+1;\r
729 }\r
730 else {\r
731 for (i=0;i<lpEncRow[ofs]-64 && x<nWidth;i++) {\r
732 if (lpEncRow[ofs+1] != (BYTE)lpRawRow[x]) return FALSE;\r
733 x++;\r
734 }\r
735 ofs+=2;\r
736 }\r
737 }\r
738 else {\r
739 for (i=0;i<lpEncRow[ofs]-128 && x<nWidth;i++) {\r
740 if (lpRawRow[x] >= 0) return FALSE;\r
741 }\r
742 x+=lpEncRow[ofs]-128;\r
743 ofs++;\r
744 }\r
745 }\r
746\r
747 if (x != nWidth || ofs != nSize) return FALSE;\r
748\r
749 return TRUE;\r
750}\r
751#endif\r
GRP encoding/decoding library