1{
2    Free Pascal port of the OpenPTC C++ library.
3    Copyright (C) 2001-2010  Nikolay Nikolov (nickysn@users.sourceforge.net)
4    Original C++ version by Glenn Fiedler (ptc@gaffer.org)
5
6    This library is free software; you can redistribute it and/or
7    modify it under the terms of the GNU Lesser General Public
8    License as published by the Free Software Foundation; either
9    version 2.1 of the License, or (at your option) any later version
10    with the following modification:
11
12    As a special exception, the copyright holders of this library give you
13    permission to link this library with independent modules to produce an
14    executable, regardless of the license terms of these independent modules,and
15    to copy and distribute the resulting executable under terms of your choice,
16    provided that you also meet, for each linked independent module, the terms
17    and conditions of the license of that module. An independent module is a
18    module which is not derived from or based on this library. If you modify
19    this library, you may extend this exception to your version of the library,
20    but you are not obligated to do so. If you do not wish to do so, delete this
21    exception statement from your version.
22
23    This library is distributed in the hope that it will be useful,
24    but WITHOUT ANY WARRANTY; without even the implied warranty of
25    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
26    Lesser General Public License for more details.
27
28    You should have received a copy of the GNU Lesser General Public
29    License along with this library; if not, write to the Free Software
30    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
31}
32
33function ptc_copy_create: TPTC_COPY;
34begin
35  try
36    ptc_copy_create := TPTC_COPY(TPTCCopy.Create);
37  except
38    on error: TPTCError do
39    begin
40      ptc_exception_handle(error);
41      ptc_copy_create := nil;
42    end;
43  end;
44end;
45
46procedure ptc_copy_destroy(obj: TPTC_COPY);
47begin
48  if obj = nil then
49    exit;
50  try
51    TPTCCopy(obj).Destroy;
52  except
53    on error: TPTCError do
54      ptc_exception_handle(error);
55  end;
56end;
57
58procedure ptc_copy_request(obj: TPTC_COPY; source, destination: TPTC_FORMAT);
59begin
60  try
61    TPTCCopy(obj).request(TPTCFormat(source), TPTCFormat(destination));
62  except
63    on error: TPTCError do
64      ptc_exception_handle(error);
65  end;
66end;
67
68procedure ptc_copy_palette(obj: TPTC_COPY; source, destination: TPTC_PALETTE);
69begin
70  try
71    TPTCCopy(obj).palette(TPTCPalette(source), TPTCPalette(destination));
72  except
73    on error: TPTCError do
74      ptc_exception_handle(error);
75  end;
76end;
77
78procedure ptc_copy_copy(obj: TPTC_COPY; source_pixels: Pointer; source_x, source_y, source_width, source_height, source_pitch: Integer;
79                        destination_pixels: Pointer; destination_x, destination_y, destination_width, destination_height, destination_pitch: Integer);
80begin
81  try
82    TPTCCopy(obj).copy(source_pixels, source_x, source_y, source_width, source_height, source_pitch, destination_pixels, destination_x, destination_y, destination_width, destination_height, destination_pitch);
83  except
84    on error: TPTCError do
85      ptc_exception_handle(error);
86  end;
87end;
88
89function ptc_copy_option(obj: TPTC_COPY; option: String): Boolean;
90begin
91  try
92    TPTCCopy(obj).option(option);
93  except
94    on error: TPTCError do
95    begin
96      ptc_exception_handle(error);
97      ptc_copy_option := False;
98    end;
99  end;
100end;
101