[PATCH] comctl32/imagelist: fix ImageList_Read/Write.
Локтар Огар
filedem at gmail.com
Sat Jun 16 09:59:13 CDT 2018
From: Denis Malikov <mdn40000 at mail.ru>
Date: Sat, 16 Jun 2018 16:35:45 +0700
Subject: [PATCH] comctl32/imagelist: fix ImageList_Read/Write.
Fix for versions x600 and x620 and pointer calculation for mixing
image and mask bits.
Tested on ReactOS 0.4.10 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 at 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;
--
2.16.2.windows.1
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