Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2025-08-03 18:25:58 +00:00
Code Issues Projects Releases Packages Wiki Activity

- Fix bpp count in CreateDIBitmap.

Browse source 
svn path=/trunk/; revision=37437
This commit is contained in:
James Tabor 2008-11-18 14:51:14 +00:00
parent fa0375352f
commit 3192a32d97
1 changed files with 26 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

31
reactos/subsystems/win32/win32k/objects/dibobj.c
View file

@ -1013,7 +1013,7 @@ NtGdiCreateDIBitmapInternal(IN HDC hDc,
HBITMAP Bmp;
UINT bpp;
if (!hDc)
if (!hDc) // CreateBitmap
{ // Should use System Bitmap DC hSystemBM, with CreateCompatibleDC for this.
hDc = IntGdiCreateDC(NULL, NULL, NULL, NULL,FALSE);
if (!hDc)
@ -1029,13 +1029,13 @@ NtGdiCreateDIBitmapInternal(IN HDC hDc,
SetLastWin32Error(ERROR_INVALID_HANDLE);
return NULL;
}
bpp = IntGdiGetDeviceCaps(Dc, BITSPIXEL);
bpp = 1;
Bmp = IntCreateDIBitmap(Dc, cx, cy, bpp, fInit, pjInit, pbmi, iUsage);
DC_UnlockDc(Dc);
NtGdiDeleteObjectApp(hDc);
}
else
else // CreateCompatibleBitmap
{
Dc = DC_LockDc(hDc);
if (!Dc)
@ -1050,8 +1050,29 @@ NtGdiCreateDIBitmapInternal(IN HDC hDc,
if (pbmi)
bpp = pbmi->bmiHeader.biBitCount;
else
bpp = IntGdiGetDeviceCaps(Dc, BITSPIXEL);
{
if (Dc->DC_Type != DC_TYPE_MEMORY )
bpp = IntGdiGetDeviceCaps(Dc, BITSPIXEL);
else
{
DIBSECTION dibs;
INT Count;
BITMAPOBJ *BitmapObject = BITMAPOBJ_LockBitmap(Dc->w.hBitmap);
Count = BITMAP_GetObject(BitmapObject, sizeof(dibs), &dibs);
if (!Count)
bpp = 1;
else
{
if (Count == sizeof(BITMAP))
/* A device-dependent bitmap is selected in the DC */
bpp = dibs.dsBm.bmBitsPixel;
else
/* A DIB section is selected in the DC */
bpp = dibs.dsBmih.biBitCount;
}
BITMAPOBJ_UnlockBitmap(BitmapObject);
}
}
Bmp = IntCreateDIBitmap(Dc, cx, cy, bpp, fInit, pjInit, pbmi, iUsage);
DC_UnlockDc(Dc);
}