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Display icons/cursors correctly without hungup. CORE-16287
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974a0f03df
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@ -508,12 +508,29 @@ static UINT ICO_ExtractIconExW(
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HICON icon;
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WORD *cursorData = NULL;
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#ifdef __REACTOS__
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BITMAPINFOHEADER bmih;
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BITMAPINFOHEADER bi;
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DWORD cbColorTable = 0, cbTotal;
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#endif
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imageData = peimage + dataOffset;
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#ifdef __REACTOS__
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memcpy(&bmih, imageData, sizeof(BITMAPINFOHEADER));
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/* Calculate the size of color table */
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CopyMemory(&bi, imageData, sizeof(BITMAPCOREHEADER));
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if (bi.biBitCount <= 8)
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{
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if (bi.biSize >= sizeof(BITMAPINFOHEADER))
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{
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CopyMemory(&bi, imageData, sizeof(BITMAPINFOHEADER));
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if (bi.biClrUsed)
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cbColorTable = bi.biClrUsed * sizeof(RGBQUAD);
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else
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cbColorTable = (1 << bi.biBitCount) * sizeof(RGBQUAD);
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}
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else if (bi.biSize == sizeof(BITMAPCOREHEADER))
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{
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cbColorTable = (1 << bi.biBitCount) * sizeof(RGBTRIPLE);
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}
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}
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#else
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entry = (LPICONIMAGE)(imageData);
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#endif
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@ -524,15 +541,20 @@ static UINT ICO_ExtractIconExW(
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/* biSizeImage is the size of the raw bitmap data.
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* A dummy 0 can be given for BI_RGB bitmaps.
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* https://en.wikipedia.org/wiki/BMP_file_format */
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if ((bmih.biCompression == BI_RGB) && (bmih.biSizeImage == 0))
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if (bi.biSizeImage == 0 || bi.biSize == sizeof(BITMAPCOREHEADER))
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{
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bmih.biSizeImage = ((bmih.biWidth * bmih.biBitCount + 31) / 32) * 4 *
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(bmih.biHeight / 2);
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/* Calculate image size */
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#define WIDTHBYTES(width, bits) (((width) * (bits) + 31) / 32 * 4)
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bi.biSizeImage = WIDTHBYTES(bi.biWidth, bi.biBitCount) * (bi.biHeight / 2);
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bi.biSizeImage += WIDTHBYTES(bi.biWidth, 1) * (bi.biHeight / 2);
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#undef WIDTHBYTES
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}
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/* Calculate total size */
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cbTotal = bi.biSize + cbColorTable + bi.biSizeImage;
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#endif
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/* we need to prepend the bitmap data with hot spots for CreateIconFromResourceEx */
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#ifdef __REACTOS__
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cursorData = HeapAlloc(GetProcessHeap(), 0, bmih.biSizeImage + 2 * sizeof(WORD));
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cursorData = HeapAlloc(GetProcessHeap(), 0, 2 * sizeof(WORD) + cbTotal);
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#else
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cursorData = HeapAlloc(GetProcessHeap(), 0, entry->icHeader.biSizeImage + 2 * sizeof(WORD));
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#endif
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@ -544,7 +566,7 @@ static UINT ICO_ExtractIconExW(
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cursorData[1] = hotSpot.y;
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#ifdef __REACTOS__
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memcpy(cursorData + 2, imageData, bmih.biSizeImage);
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CopyMemory(cursorData + 2, imageData, cbTotal);
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#else
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memcpy(cursorData + 2, imageData, entry->icHeader.biSizeImage);
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#endif
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@ -553,7 +575,7 @@ static UINT ICO_ExtractIconExW(
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}
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#ifdef __REACTOS__
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icon = CreateIconFromResourceEx(imageData, bmih.biSizeImage, sig == 1, 0x00030000, cx[index], cy[index], flags);
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icon = CreateIconFromResourceEx(imageData, cbTotal, sig == 1, 0x00030000, cx[index], cy[index], flags);
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#else
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icon = CreateIconFromResourceEx(imageData, entry->icHeader.biSizeImage, sig == 1, 0x00030000, cx[index], cy[index], flags);
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#endif
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