MyGUI  3.0.1
MyGUI_TextureUtility.cpp
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1 
7 /*
8  This file is part of MyGUI.
9 
10  MyGUI is free software: you can redistribute it and/or modify
11  it under the terms of the GNU Lesser General Public License as published by
12  the Free Software Foundation, either version 3 of the License, or
13  (at your option) any later version.
14 
15  MyGUI 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 Lesser General Public License for more details.
19 
20  You should have received a copy of the GNU Lesser General Public License
21  along with MyGUI. If not, see <http://www.gnu.org/licenses/>.
22 */
23 #include "MyGUI_Precompiled.h"
24 #include "MyGUI_TextureUtility.h"
25 #include "MyGUI_RenderManager.h"
26 #include "MyGUI_DataManager.h"
27 #include "MyGUI_Bitwise.h"
28 
29 namespace MyGUI
30 {
31 
32  namespace texture_utility
33  {
34 
35  const IntSize& getTextureSize(const std::string& _texture, bool _cache)
36  {
37  // ïðåäûäóùÿ òåêñòóðà
38  static std::string old_texture;
39  static IntSize old_size;
40 
41  if (old_texture == _texture && _cache)
42  return old_size;
43  old_texture = _texture;
44  old_size.clear();
45 
46  if (_texture.empty())
47  return old_size;
48 
50 
51  if (nullptr == render.getTexture(_texture))
52  {
53  if (!DataManager::getInstance().isDataExist(_texture))
54  {
55  MYGUI_LOG(Error, "Texture '" + _texture + "' not found");
56  return old_size;
57  }
58  else
59  {
60  ITexture* texture = render.createTexture(_texture);
61  texture->loadFromFile(_texture);
62  }
63  }
64 
65  ITexture* texture = render.getTexture(_texture);
66  if (texture == nullptr)
67  {
68  MYGUI_LOG(Error, "Texture '" + _texture + "' not found");
69  return old_size;
70  }
71 
72  old_size.set(texture->getWidth(), texture->getHeight());
73 
74  #if MYGUI_DEBUG_MODE == 1
75  if (!Bitwise::isPO2(old_size.width) || !Bitwise::isPO2(old_size.height))
76  {
77  MYGUI_LOG(Warning, "Texture '" + _texture + "' have non power of two size");
78  }
79  #endif
80 
81  return old_size;
82  }
83 
84  uint32 toColourARGB(const Colour& _colour)
85  {
86  uint32 val32 = uint8(_colour.alpha * 255);
87  val32 <<= 8;
88  val32 += uint8(_colour.red * 255);
89  val32 <<= 8;
90  val32 += uint8(_colour.green * 255);
91  val32 <<= 8;
92  val32 += uint8(_colour.blue * 255);
93  return val32;
94  }
95 
96  } // namespace texture_utility
97 
98 } // namespace MyGUI