mirror of
https://github.com/reactos/wine.git
synced 2024-11-28 22:20:26 +00:00
94 lines
2.5 KiB
C
94 lines
2.5 KiB
C
/*
|
|
* Copyright 2009 Vincent Povirk for CodeWeavers
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
|
|
#include "config.h"
|
|
|
|
#include <stdarg.h>
|
|
|
|
#include "windef.h"
|
|
#include "winbase.h"
|
|
#include "objbase.h"
|
|
#include "wincodec.h"
|
|
|
|
#include "wincodecs_private.h"
|
|
|
|
#include "wine/debug.h"
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
|
|
|
|
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
|
|
{
|
|
|
|
switch (fdwReason)
|
|
{
|
|
case DLL_PROCESS_ATTACH:
|
|
DisableThreadLibraryCalls(hinstDLL);
|
|
break;
|
|
case DLL_PROCESS_DETACH:
|
|
break;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
HRESULT copy_pixels(UINT bpp, const BYTE *srcbuffer,
|
|
UINT srcwidth, UINT srcheight, INT srcstride,
|
|
const WICRect *rc, UINT dststride, UINT dstbuffersize, BYTE *dstbuffer)
|
|
{
|
|
UINT bytesperrow;
|
|
UINT row_offset; /* number of bits into the source rows where the data starts */
|
|
|
|
if (rc->X < 0 || rc->Y < 0 || rc->X+rc->Width > srcwidth || rc->Y+rc->Height > srcheight)
|
|
return E_INVALIDARG;
|
|
|
|
bytesperrow = ((bpp * rc->Width)+7)/8;
|
|
|
|
if (dststride < bytesperrow)
|
|
return E_INVALIDARG;
|
|
|
|
if ((dststride * rc->Height) > dstbuffersize)
|
|
return E_INVALIDARG;
|
|
|
|
row_offset = rc->X * bpp;
|
|
|
|
if (row_offset % 8 == 0)
|
|
{
|
|
/* everything lines up on a byte boundary */
|
|
UINT row;
|
|
const BYTE *src;
|
|
BYTE *dst;
|
|
|
|
src = srcbuffer + (row_offset / 8) + srcstride * rc->Y;
|
|
dst = dstbuffer;
|
|
for (row=0; row < rc->Height; row++)
|
|
{
|
|
memcpy(dst, src, bytesperrow);
|
|
src += srcstride;
|
|
dst += dststride;
|
|
}
|
|
return S_OK;
|
|
}
|
|
else
|
|
{
|
|
/* we have to do a weird bitwise copy. eww. */
|
|
FIXME("cannot reliably copy bitmap data if bpp < 8\n");
|
|
return E_FAIL;
|
|
}
|
|
}
|