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/*
Copyright (C) 2009 Red Hat, Inc.
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, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "common.h"
#include "cursor.h"
#include "utils.h"
#include "debug.h"
CursorData::CursorData(SpiceCursor& cursor, int data_size)
: _atomic (1)
, _header (cursor.header)
, _data (NULL)
, _opaque (NULL)
, _local_cursor (NULL)
{
int expected_size = 0;
switch (cursor.header.type) {
case SPICE_CURSOR_TYPE_ALPHA:
expected_size = (_header.width << 2) * _header.height;
break;
case SPICE_CURSOR_TYPE_MONO:
expected_size = (SPICE_ALIGN(_header.width, 8) >> 2) * _header.height;
break;
case SPICE_CURSOR_TYPE_COLOR4:
expected_size = (SPICE_ALIGN(_header.width, 2) >> 1) * _header.height;
expected_size += (SPICE_ALIGN(_header.width, 8) >> 3) * _header.height;
expected_size += 16 * sizeof(uint32_t);
break;
case SPICE_CURSOR_TYPE_COLOR8:
expected_size = _header.width * _header.height;
expected_size += (SPICE_ALIGN(_header.width, 8) >> 3) * _header.height;
expected_size += 256 * sizeof(uint32_t);
break;
case SPICE_CURSOR_TYPE_COLOR16:
expected_size = (_header.width << 1) * _header.height;
expected_size += (SPICE_ALIGN(_header.width, 8) >> 3) * _header.height;
break;
case SPICE_CURSOR_TYPE_COLOR24:
expected_size = (_header.width * 3) * _header.height;
expected_size += (SPICE_ALIGN(_header.width, 8) >> 3) * _header.height;
break;
case SPICE_CURSOR_TYPE_COLOR32:
expected_size = (_header.width << 2) * _header.height;
expected_size += (SPICE_ALIGN(_header.width, 8) >> 3) * _header.height;
break;
}
if (data_size < expected_size) {
THROW("access violation 0x%lx %u", (unsigned long)cursor.data, expected_size);
}
_data = new uint8_t[expected_size];
memcpy(_data, cursor.data, expected_size);
}
void CursorData::set_local(LocalCursor* local_cursor)
{
ASSERT(!_local_cursor);
if (local_cursor) {
_local_cursor = local_cursor->ref();
}
}
CursorData::~CursorData()
{
if (_local_cursor) {
_local_cursor->unref();
}
delete _opaque;
delete[] _data;
}
int LocalCursor::get_size_bits(const SpiceCursorHeader& header, int& size)
{
switch (header.type) {
case SPICE_CURSOR_TYPE_ALPHA:
case SPICE_CURSOR_TYPE_COLOR32:
size = (header.width << 2) * header.height;
return 32;
case SPICE_CURSOR_TYPE_MONO:
size = (SPICE_ALIGN(header.width, 8) >> 3) * header.height;
return 1;
case SPICE_CURSOR_TYPE_COLOR4:
size = (SPICE_ALIGN(header.width, 2) >> 1) * header.height;
return 4;
case SPICE_CURSOR_TYPE_COLOR8:
size = header.width * header.height;
return 8;
case SPICE_CURSOR_TYPE_COLOR16:
size = (header.width << 1) * header.height;
return 16;
case SPICE_CURSOR_TYPE_COLOR24:
size = (header.width * 3) * header.height;
return 24;
default:
return 0;
}
}
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