1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/***************************************************************************
* Copyright (C) 2005-2019 by the FIFE team *
* http://www.fifengine.net *
* This file is part of FIFE. *
* *
* FIFE 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, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
***************************************************************************/
// Standard C++ library includes
// 3rd party library includes
// FIFE includes
// These includes are split up in two parts, separated by one empty line
// First block: files included from the FIFE root src directory
// Second block: files included from the same folder
#include "video/image.h"
#include "video/imagemanager.h"
#include "video/atlasbook.h"
#include "video/renderbackend.h"
#include "gui_imageloader.h"
static const uint32_t ATLAS_SIZE = 512;
namespace FIFE {
GuiImageLoader::GuiImageLoader() {
m_atlasbook = new AtlasBook(ATLAS_SIZE, ATLAS_SIZE);
}
GuiImageLoader::~GuiImageLoader() {
delete m_atlasbook;
}
fcn::Image* GuiImageLoader::load(const std::string& filename, bool convertToDisplayFormat) {
ImageManager* imgManager = ImageManager::instance();
if(imgManager->exists(filename)) {
return new GuiImage(imgManager->get(filename));
}
// load demanded image
ImagePtr tmpimg = imgManager->load(filename);
if(tmpimg->getWidth() >= ATLAS_SIZE || tmpimg->getHeight() >= ATLAS_SIZE) {
return new GuiImage(tmpimg);
}
// look for a place for an image of given size
AtlasBlock* block = m_atlasbook->getBlock(tmpimg->getWidth(), tmpimg->getHeight());
// if it can't fit, we need to add new 'page'
if(block->page >= m_atlases.size()) {
m_atlases.push_back(imgManager->loadBlank(ATLAS_SIZE, ATLAS_SIZE));
// because we gonna update texture on-the fly (via TexSubImage)
// we cant really use compressed texture
RenderBackend* rb = RenderBackend::instance();
bool prev = rb->isImageCompressingEnabled();
rb->setImageCompressingEnabled(false);
m_atlases[block->page]->forceLoadInternal();
rb->setImageCompressingEnabled(prev);
}
// update atlas page with given image
m_atlases[block->page]->copySubimage(block->left, block->top, tmpimg);
// we dont really need this image anymore
tmpimg->free();
imgManager->remove(tmpimg);
// create shared image and return it
ImagePtr img = imgManager->create(filename);
Rect region(block->left, block->top, block->getWidth(), block->getHeight());
img->useSharedImage(m_atlases[block->page], region);
return new GuiImage(img);
}
}
|
