X-Git-Url: https://sfsrealm.hopto.org/projects/gitweb.cgi?a=blobdiff_plain;f=grpapi%2Fgrpapi.cpp;h=d2066146df5dfa569cdef9d405c6015d83a213a0;hb=a215f7bed5ba1784c1efd0f24db33e64f7d52360;hp=0ce1b296b0fa2a59114226de0343a47c998f17b6;hpb=9492b9e609e5b7aaabd76022b65a7363a189bc72;p=grpapi.git

diff --git a/grpapi/grpapi.cpp b/grpapi/grpapi.cpp
index 0ce1b29..d206614 100644
--- a/grpapi/grpapi.cpp
+++ b/grpapi/grpapi.cpp
@@ -79,6 +79,23 @@ void GRPAPI WINAPI FreeGrpApi()
 {
 }
 
+/*
+HANDLE hProcessHeap = NULL;
+
+void * SFAlloc(size_t nSize)
+{
+	if (!hProcessHeap) hProcessHeap = GetProcessHeap();
+	if (hProcessHeap) return HeapAlloc(hProcessHeap, 0, nSize);
+	else return NULL;
+}
+
+void SFFree(void *lpMem)
+{
+	if (!hProcessHeap) hProcessHeap = GetProcessHeap();
+	if (hProcessHeap) HeapFree(hProcessHeap, 0, lpMem);
+}
+*/
+
 BOOL GRPAPI WINAPI SetMpqDll(LPCSTR lpDllFileName)
 {
 	if (LoadStorm((char *)lpDllFileName)) return TRUE;
@@ -216,7 +233,8 @@ BOOL GRPAPI WINAPI DrawGrp(HANDLE hGrp, HDC hdcDest, int nXDest, int nYDest, WOR
 				FrameSize = j;
 		}
 	}
-	if (FrameSize == 0xFFFFFF) {
+	if (FrameSize == 0xFFFFFF || FrameSize == GrpFrame->Width * GrpFrame->Height) {
+		FrameSize = 0xFFFFFF;
 		for (i = 0; i + 1 < GrpFile->nFrames; i++) {
 			j = GrpFrames[i].Offset - GrpFrames[0].Offset;
 			if (j > 0 && j < FrameSize)
@@ -383,6 +401,19 @@ BOOL GRPAPI WINAPI GetGrpInfo(HANDLE hGrp, GRPHEADER *GrpInfo)
 	return TRUE;
 }
 
+BOOL GRPAPI WINAPI GetGrpFrameInfo(HANDLE hGrp, WORD nFrame, DWORD *nLeft, DWORD *nTop, DWORD *nWidth, DWORD *nHeight)
+{
+	if (!hGrp || hGrp==INVALID_HANDLE_VALUE) return FALSE;
+	FRAMEHEADER *GrpFrame = &((FRAMEHEADER *)(((char *)hGrp)+6))[nFrame];
+
+	if (nLeft) *nLeft = GrpFrame->Left;
+	if (nTop) *nTop = GrpFrame->Top;
+	if (nWidth) *nWidth = GrpFrame->Width;
+	if (nHeight) *nHeight = GrpFrame->Height;
+
+	return TRUE;
+}
+
 void GRPAPI WINAPI SetFunctionGetPixel(GETPIXELPROC lpGetPixelProc)
 {
 	if (!lpGetPixelProc)
@@ -455,6 +486,7 @@ HANDLE GRPAPI WINAPI CreateGrp(signed short *lpImageData, WORD nFrames, WORD wMa
 	GrpHeader.wMaxHeight = wMaxHeight;
 	lpFrameHeaders = (FRAMEHEADER *)malloc(nFrames * sizeof(FRAMEHEADER));
 	lpFrameData = (FRAMEDATA *)malloc(nFrames * sizeof(FRAMEDATA));
+	nLastOffset = sizeof(GRPHEADER) + nFrames * sizeof(FRAMEHEADER);
 
 	for (i = 0; i < nFrames; i++) {
 		// Search for duplicate frames
@@ -569,6 +601,7 @@ void EncodeFrameData(signed short *lpImageData, WORD nFrame, GRPHEADER *lpGrpHea
 	lpFrameData->lpRowSizes = (WORD *)malloc(lpFrameHeader->Height * sizeof(WORD));
 	lpFrameData->lpRowData = (LPBYTE *)malloc(lpFrameHeader->Height * sizeof(LPBYTE));
 	lpRowBuf = (LPBYTE)malloc(lpFrameHeader->Width * 2);
+	nLastOffset = lpFrameHeader->Height * sizeof(WORD);
 
 	for (y = 0; y < lpFrameHeader->Height; y++) {
 		i = nFrame * lpGrpHeader->wMaxWidth * lpGrpHeader->wMaxHeight + (lpFrameHeader->Top + y) * lpGrpHeader->wMaxWidth;
@@ -608,7 +641,8 @@ void EncodeFrameData(signed short *lpImageData, WORD nFrame, GRPHEADER *lpGrpHea
 							lpRowBuf[nBufPos]++;
 						}
 						x--;
-						nBufPos++;
+						if (nLastOffset + nBufPos + 1 <= 0xFFFF)
+							nBufPos++;
 						continue;
 					}
 
@@ -619,7 +653,8 @@ void EncodeFrameData(signed short *lpImageData, WORD nFrame, GRPHEADER *lpGrpHea
 						lpRowBuf[nBufPos] = 0x41 + nRepeat;
 						lpRowBuf[nBufPos+1] = (BYTE)lpImageData[i+x];
 						x += nRepeat;
-						nBufPos += 2;
+						if (nLastOffset + nBufPos + 2 <= 0xFFFF)
+							nBufPos += 2;
 					}
 					else {
 						lpRowBuf[nBufPos] = 0;
@@ -636,18 +671,21 @@ void EncodeFrameData(signed short *lpImageData, WORD nFrame, GRPHEADER *lpGrpHea
 							lpRowBuf[nBufPos+lpRowBuf[nBufPos]] = (BYTE)lpImageData[i+x];
 						}
 						x--;
-						nBufPos += 1 + lpRowBuf[nBufPos];
+						if (nLastOffset + nBufPos + 1 + lpRowBuf[nBufPos] <= 0xFFFF)
+							nBufPos += 1 + lpRowBuf[nBufPos];
 					}
 				}
 				else {
 					if (lpImageData[i+x] < 0) {
 						lpRowBuf[nBufPos] = 0x81;
-						nBufPos++;
+						if (nLastOffset + nBufPos + 1 <= 0xFFFF)
+							nBufPos++;
 					}
 					else {
 						lpRowBuf[nBufPos] = 1;
 						lpRowBuf[nBufPos+1] = (BYTE)lpImageData[i+x];
-						nBufPos += 2;
+						if (nLastOffset + nBufPos + 2 <= 0xFFFF)
+							nBufPos += 2;
 					}
 				}
 			}