ManaPlus
rescaledloader.cpp
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1 /*
2  * The ManaPlus Client
3  * Copyright (C) 2004-2009 The Mana World Development Team
4  * Copyright (C) 2009-2010 The Mana Developers
5  * Copyright (C) 2011-2019 The ManaPlus Developers
6  * Copyright (C) 2019-2021 Andrei Karas
7  *
8  * This file is part of The ManaPlus Client.
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2 of the License, or
13  * any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program. If not, see <http://www.gnu.org/licenses/>.
22  */
23 
24 #include "resources/image/image.h"
25 
27 
29 
30 #include "utils/checkutils.h"
31 #include "utils/stringutils.h"
32 
33 #include "debug.h"
34 
35 namespace
36 {
38  {
40 
41  const Image *const image;
42  const int width;
43  const int height;
44  static Resource *load(const void *const v)
45  {
46  if (v == nullptr)
47  return nullptr;
48  const RescaledLoader *const rl
49  = static_cast<const RescaledLoader *>(v);
50  if (rl->image == nullptr)
51  return nullptr;
52  Image *const rescaled = rl->image->SDLgetScaledImage(
53  rl->width, rl->height);
54  if (rescaled == nullptr)
55  {
56  reportAlways("Rescale image failed: %s",
57  rl->image->mIdPath.c_str())
58  return nullptr;
59  }
60  return rescaled;
61  }
62  };
63 } // namespace
64 
65 Image *Loader::getRescaled(const Image *const image,
66  const int width,
67  const int height)
68 {
69  if (image == nullptr)
70  return nullptr;
71 
72  const std::string idPath = image->mIdPath + strprintf(
73  "_rescaled%dx%d", width, height);
74  const RescaledLoader rl = { image, width, height };
75  return static_cast<Image *>(
77 }
#define reportAlways(...)
Definition: checkutils.h:253
#define final
Definition: localconsts.h:46
#define A_DEFAULT_COPY(func)
Definition: localconsts.h:41
void load()
Definition: avatardb.cpp:46
Image * getRescaled(const Image *const image, const int width, const int height)
Resource * get(const std::string &idPath, generator fun, const void *const data)
std::string strprintf(const char *const format,...)