static void
test_pic(const unsigned char *imgdata, unsigned int imgsize)
{
LPSTREAM stream;
HGLOBAL hglob;
LPBYTE data;
HRESULT hres;
LARGE_INTEGER seekto;
ULARGE_INTEGER newpos1;
/* Let the fun begin */
hglob = GlobalAlloc (0, imgsize);
data = GlobalLock (hglob);
memcpy(data, imgdata, imgsize);
hres = CreateStreamOnHGlobal (hglob, FALSE, &stream);
ok (hres == S_OK, "createstreamonhglobal failed? doubt it... hres 0x%08lx\n", hres);
memset(&seekto,0,sizeof(seekto));
hres = IStream_Seek(stream,seekto,SEEK_CUR,&newpos1);
ok (hres == S_OK, "istream seek failed? doubt it... hres 0x%08lx\n", hres);
test_pic_with_stream(stream, imgsize);
/* again with Non Statable and Non Seekable stream */
stream = (LPSTREAM)NoStatStreamImpl_Construct(hglob);
test_pic_with_stream(stream, 0);
}
static void
test_pic(const unsigned char *imgdata, unsigned int imgsize)
{
LPSTREAM stream;
HGLOBAL hglob;
LPBYTE data;
HRESULT hres;
LARGE_INTEGER seekto;
ULARGE_INTEGER newpos1;
DWORD * header;
unsigned int i,j;
/* Let the fun begin */
hglob = GlobalAlloc (0, imgsize);
data = GlobalLock (hglob);
memcpy(data, imgdata, imgsize);
GlobalUnlock(hglob); data = NULL;
hres = CreateStreamOnHGlobal (hglob, FALSE, &stream);
ok (hres == S_OK, "createstreamonhglobal failed? doubt it... hres 0x%08x\n", hres);
memset(&seekto,0,sizeof(seekto));
hres = IStream_Seek(stream,seekto,SEEK_CUR,&newpos1);
ok (hres == S_OK, "istream seek failed? doubt it... hres 0x%08x\n", hres);
test_pic_with_stream(stream, imgsize);
IStream_Release(stream);
/* again with Non Statable and Non Seekable stream */
stream = (LPSTREAM)NoStatStreamImpl_Construct(hglob);
hglob = 0; /* Non-statable impl always deletes on release */
test_pic_with_stream(stream, 0);
IStream_Release(stream);
for (i = 1; i <= 8; i++) {
/* more fun!!! */
hglob = GlobalAlloc (0, imgsize + i * (2 * sizeof(DWORD)));
data = GlobalLock (hglob);
header = (DWORD *)data;
/* multiple copies of header */
memcpy(data,"lt\0\0",4);
header[1] = imgsize;
for (j = 2; j <= i; j++) {
memcpy(&(header[2 * (j - 1)]), header, 2 * sizeof(DWORD));
}
memcpy(data + i * (2 * sizeof(DWORD)), imgdata, imgsize);
GlobalUnlock(hglob); data = NULL;
hres = CreateStreamOnHGlobal (hglob, FALSE, &stream);
ok (hres == S_OK, "createstreamonhglobal failed? doubt it... hres 0x%08x\n", hres);
memset(&seekto,0,sizeof(seekto));
hres = IStream_Seek(stream,seekto,SEEK_CUR,&newpos1);
ok (hres == S_OK, "istream seek failed? doubt it... hres 0x%08x\n", hres);
test_pic_with_stream(stream, imgsize);
IStream_Release(stream);
/* again with Non Statable and Non Seekable stream */
stream = (LPSTREAM)NoStatStreamImpl_Construct(hglob);
hglob = 0; /* Non-statable impl always deletes on release */
test_pic_with_stream(stream, 0);
IStream_Release(stream);
}
}