ApfelTeeSaft/reactos
1
0
Fork 0
mirror of https://github.com/ApfelTeeSaft/reactos.git synced 2026-09-01 19:26:16 +00:00
Code Issues Packages Projects Releases Wiki Activity

1. remove hack in NtGdiCreateBitmap

Browse Source 
2. BugFix IntGdiCreateBitmap 
   1. Height can not be negative value 
   2. width can not be negative value
   3. Planes or BitsPerPixel can not be biger that 32Bpp
   4. BitsPerPixel can not be 0
   5. width size is max  0x7FFFFFFF hex



svn path=/trunk/; revision=33403
This commit is contained in:
Magnus Olsen
2008-05-10 11:23:54 +00:00
parent 7eab8b0750
commit 608264fa22
1 changed files with 12 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files
reactos/subsystems/win32/win32k/objects/bitmaps.c
+12 -17
View File
@@ -43,22 +43,24 @@ IntGdiCreateBitmap(
SIZEL Size;
LONG WidthBytes;
/* NOTE: Windows also doesn't store nr. of planes separately! */
BitsPixel = BITMAPOBJ_GetRealBitsPixel(BitsPixel * Planes);
/* Check parameters */
if (BitsPixel == 0 || Width < 0)
{
DPRINT1("Width = %d, Height = %d BitsPixel = %d\n", Width, Height, BitsPixel);
SetLastWin32Error(ERROR_INVALID_PARAMETER);
return 0;
}
if ( (Height <= 0) || (Width <= 0) || (Width > 0x7FFFFFFF) ||
(Planes > 32) || (BitsPixel > 32) || (BitsPixel == 0) )
{
DPRINT1("Width = %d, Height = %d BitsPixel = %d\n", Width, Height, BitsPixel);
SetLastWin32Error(ERROR_INVALID_PARAMETER);
return 0;
}
WidthBytes = BITMAPOBJ_GetWidthBytes(Width, Planes * BitsPixel);
Size.cx = abs(Width);
Size.cy = abs(Height);
Size.cx = Width;
Size.cy = Height;
/* Create the bitmap object. */
hBitmap = IntCreateBitmap(Size, WidthBytes,
BitmapFormat(BitsPixel, BI_RGB),
@@ -112,14 +114,7 @@ NtGdiCreateBitmap(
ProbeForRead(pUnsafeBits, cjBits, 1);
}
if (0 == Width || 0 == Height)
{
hBitmap = IntGdiCreateBitmap (1, 1, 1, 1, NULL);
}
else
{
hBitmap = IntGdiCreateBitmap(Width, Height, Planes, BitsPixel, pUnsafeBits);
}
hBitmap = IntGdiCreateBitmap(Width, Height, Planes, BitsPixel, pUnsafeBits);
}
_SEH_HANDLE
{