From: Denis Malikov mdn40000@mail.ru Date: Sat, 16 Jun 2018 16:35:45 +0700 Subject: [PATCH] comctl32/imagelist: fix ImageList_Read/Write.
Fix pointer calculation for mixing image and mask bits for versions x600 and x620.
Tested with *.reg files extracted from: XP/2003 key HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\TrayNotify; Vista/7 key HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\TrayNotify
Signed-off-by: Denis Malikov mdn40000@mail.ru --- dlls/comctl32/imagelist.c | 59 +++++++++++++++++++++++++++-------------------- 1 file changed, 34 insertions(+), 25 deletions(-)
diff --git a/dlls/comctl32/imagelist.c b/dlls/comctl32/imagelist.c index a08d60752e..052d59f9e4 100644 --- a/dlls/comctl32/imagelist.c +++ b/dlls/comctl32/imagelist.c @@ -59,7 +59,7 @@ struct _IMAGELIST INT cGrow; /* 0C: cGrow */ INT cx; /* 10: cx */ INT cy; /* 14: cy */ - DWORD x4; + DWORD x4; /* hack for IL from stream. Keep version here */ UINT flags; /* 1C: flags */ COLORREF clrFg; /* 20: foreground color */ COLORREF clrBk; /* 24: background color */ @@ -83,6 +83,7 @@ struct _IMAGELIST };
#define IMAGELIST_MAGIC 0x53414D58 +#define IMAGELIST_VERSION 0x101
/* Header used by ImageList_Read() and ImageList_Write() */ #include "pshpack2.h" @@ -806,6 +807,7 @@ ImageList_Create (INT cx, INT cy, UINT flags, himl->clrFg = CLR_DEFAULT; himl->clrBk = CLR_NONE; himl->color_table_set = FALSE; + himl->x4 = 0;
/* initialize overlay mask indices */ for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++) @@ -2257,38 +2259,43 @@ HIMAGELIST WINAPI ImageList_Read(IStream *pstm) BITMAPINFO *image_info = (BITMAPINFO *)image_buf; BITMAPINFO *mask_info = (BITMAPINFO *)mask_buf; void *image_bits, *mask_bits = NULL; - ILHEAD ilHead; - HIMAGELIST himl; + ILHEAD ilHead; + HIMAGELIST himl; unsigned int i;
TRACE("%p\n", pstm);
if (FAILED(IStream_Read (pstm, &ilHead, sizeof(ILHEAD), NULL))) - return NULL; + return NULL; if (ilHead.usMagic != (('L' << 8) | 'I')) - return NULL; - if (ilHead.usVersion != 0x101) /* probably version? */ - return NULL; + return NULL; + if (ilHead.usVersion != IMAGELIST_VERSION && + ilHead.usVersion != 0x600 && /* XP/2003 version */ + ilHead.usVersion != 0x620) /* Vista/7 version */ + return NULL;
TRACE("cx %u, cy %u, flags 0x%04x, cCurImage %u, cMaxImage %u\n", ilHead.cx, ilHead.cy, ilHead.flags, ilHead.cCurImage, ilHead.cMaxImage);
himl = ImageList_Create(ilHead.cx, ilHead.cy, ilHead.flags, ilHead.cCurImage, ilHead.cMaxImage); if (!himl) - return NULL; + return NULL; + + // keep version from stream + himl->x4 = ilHead.usVersion;
if (!(image_bits = read_bitmap(pstm, image_info))) { - WARN("failed to read bitmap from stream\n"); - return NULL; + WARN("failed to read bitmap from stream\n"); + return NULL; } if (ilHead.flags & ILC_MASK) { if (!(mask_bits = read_bitmap(pstm, mask_info))) { WARN("failed to read mask bitmap from stream\n"); - return NULL; - } + return NULL; + } } else mask_info = NULL;
@@ -2296,23 +2303,25 @@ HIMAGELIST WINAPI ImageList_Read(IStream *pstm) { DWORD *ptr = image_bits; BYTE *mask_ptr = mask_bits; - int stride = himl->cy * image_info->bmiHeader.biWidth; + int stride = himl->cy * (ilHead.usVersion != IMAGELIST_VERSION ? himl->cx : image_info->bmiHeader.biWidth); + int image_step = ilHead.usVersion != IMAGELIST_VERSION ? 1 : TILE_COUNT; + int mask_step = ilHead.usVersion != IMAGELIST_VERSION ? 4 : 8;
if (image_info->bmiHeader.biHeight > 0) /* bottom-up */ { ptr += image_info->bmiHeader.biHeight * image_info->bmiHeader.biWidth - stride; - mask_ptr += (image_info->bmiHeader.biHeight * image_info->bmiHeader.biWidth - stride) / 8; + mask_ptr += (image_info->bmiHeader.biHeight * image_info->bmiHeader.biWidth - stride) / mask_step; stride = -stride; image_info->bmiHeader.biHeight = himl->cy; } else image_info->bmiHeader.biHeight = -himl->cy;
- for (i = 0; i < ilHead.cCurImage; i += TILE_COUNT) + for (i = 0; i < ilHead.cCurImage; i += image_step) { - add_dib_bits( himl, i, min( ilHead.cCurImage - i, TILE_COUNT ), + add_dib_bits( himl, i, min( ilHead.cCurImage - i, image_step ), himl->cx, himl->cy, image_info, mask_info, ptr, mask_ptr ); ptr += stride; - mask_ptr += stride / 8; + mask_ptr += stride / mask_step; } } else @@ -2333,7 +2342,7 @@ HIMAGELIST WINAPI ImageList_Read(IStream *pstm)
ImageList_SetBkColor(himl,ilHead.bkcolor); for (i=0;i<4;i++) - ImageList_SetOverlayImage(himl,ilHead.ovls[i],i+1); + ImageList_SetOverlayImage(himl,ilHead.ovls[i],i+1); return himl; }
@@ -3078,10 +3087,10 @@ BOOL WINAPI ImageList_Write(HIMAGELIST himl, IStream *pstm) TRACE("%p %p\n", himl, pstm);
if (!is_valid(himl)) - return FALSE; + return FALSE;
ilHead.usMagic = (('L' << 8) | 'I'); - ilHead.usVersion = 0x101; + ilHead.usVersion = himl->x4 > 0 ? himl->x4 : IMAGELIST_VERSION; ilHead.cCurImage = himl->cCurImage; ilHead.cMaxImage = himl->cMaxImage; ilHead.cGrow = himl->cGrow; @@ -3090,23 +3099,23 @@ BOOL WINAPI ImageList_Write(HIMAGELIST himl, IStream *pstm) ilHead.bkcolor = himl->clrBk; ilHead.flags = himl->flags; for(i = 0; i < 4; i++) { - ilHead.ovls[i] = himl->nOvlIdx[i]; + ilHead.ovls[i] = himl->nOvlIdx[i]; }
TRACE("cx %u, cy %u, flags 0x04%x, cCurImage %u, cMaxImage %u\n", ilHead.cx, ilHead.cy, ilHead.flags, ilHead.cCurImage, ilHead.cMaxImage);
if(FAILED(IStream_Write(pstm, &ilHead, sizeof(ILHEAD), NULL))) - return FALSE; + return FALSE;
/* write the bitmap */ if(!_write_bitmap(himl->hbmImage, pstm)) - return FALSE; + return FALSE;
/* write the mask if we have one */ if(himl->flags & ILC_MASK) { - if(!_write_bitmap(himl->hbmMask, pstm)) - return FALSE; + if(!_write_bitmap(himl->hbmMask, pstm)) + return FALSE; }
return TRUE;