Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Fonts/OpenGLTextCoordinates.cpp @ 1836:5a6adbc20ace
cleanup cmake
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Sat, 12 Jun 2021 13:43:42 +0200 |
parents | 9ac2a65d4172 |
children | 3889ae96d2e9 |
rev | line source |
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577 | 1 /** |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium |
577 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
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8 * modify it under the terms of the GNU Lesser General Public License |
577 | 9 * as published by the Free Software Foundation, either version 3 of |
10 * the License, or (at your option) any later version. | |
11 * | |
12 * This program is distributed in the hope that it will be useful, but | |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Lesser General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU Lesser General Public |
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18 * License along with this program. If not, see |
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19 * <http://www.gnu.org/licenses/>. |
577 | 20 **/ |
21 | |
22 | |
23 #include "OpenGLTextCoordinates.h" | |
24 | |
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25 #include <OrthancException.h> |
577 | 26 |
27 namespace OrthancStone | |
28 { | |
29 namespace OpenGL | |
30 { | |
31 void OpenGLTextCoordinates::Visit(uint32_t unicode, | |
32 int x, | |
33 int y, | |
34 unsigned int width, | |
35 unsigned int height, | |
36 const Orthanc::IDynamicObject* payload) | |
37 { | |
38 // Rendering coordinates | |
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39 float rx1 = static_cast<float>(x - box_.GetLeft()); |
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40 float ry1 = static_cast<float>(y - box_.GetTop()); |
577 | 41 float rx2 = rx1 + static_cast<float>(width); |
42 float ry2 = ry1 + static_cast<float>(height); | |
43 | |
44 // Texture coordinates | |
45 assert(payload != NULL); | |
46 const GlyphTextureAlphabet::TextureLocation& location = | |
47 *dynamic_cast<const GlyphTextureAlphabet::TextureLocation*>(payload); | |
48 | |
49 float tx1 = location.GetX() / textureWidth_; | |
50 float ty1 = location.GetY() / textureHeight_; | |
51 float tx2 = tx1 + (static_cast<float>(width) / textureWidth_); | |
52 float ty2 = ty1 + (static_cast<float>(height) / textureHeight_); | |
53 | |
54 const float rpos[6][2] = { | |
55 { rx1, ry1 }, | |
56 { rx1, ry2 }, | |
57 { rx2, ry1 }, | |
58 { rx2, ry1 }, | |
59 { rx1, ry2 }, | |
60 { rx2, ry2 } | |
61 }; | |
62 | |
63 const float tpos[6][2] = { | |
64 { tx1, ty1 }, | |
65 { tx1, ty2 }, | |
66 { tx2, ty1 }, | |
67 { tx2, ty1 }, | |
68 { tx1, ty2 }, | |
69 { tx2, ty2 } | |
70 }; | |
71 | |
72 for (unsigned int i = 0; i < 6; i++) | |
73 { | |
74 renderingCoords_.push_back(rpos[i][0]); | |
75 renderingCoords_.push_back(rpos[i][1]); | |
76 textureCoords_.push_back(tpos[i][0]); | |
77 textureCoords_.push_back(tpos[i][1]); | |
78 } | |
79 } | |
80 | |
81 | |
82 OpenGLTextCoordinates::OpenGLTextCoordinates(const GlyphTextureAlphabet& alphabet, | |
83 const std::string& utf8) : | |
84 box_(alphabet.GetAlphabet(), utf8), | |
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85 textureWidth_(static_cast<float>(alphabet.GetTextureWidth())), |
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86 textureHeight_(static_cast<float>(alphabet.GetTextureHeight())) |
577 | 87 { |
88 if (textureWidth_ <= 0 || | |
89 textureHeight_ <= 0) | |
90 { | |
91 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
92 } | |
93 | |
94 width_ = static_cast<float>(box_.GetWidth()); | |
95 height_ = static_cast<float>(box_.GetHeight()); | |
96 | |
97 // Each character is made of two 2D triangles (= 2 * 3 * 2 = 12) | |
98 renderingCoords_.reserve(box_.GetCharactersCount() * 12); | |
99 textureCoords_.reserve(box_.GetCharactersCount() * 12); | |
100 | |
101 alphabet.GetAlphabet().Apply(*this, utf8); | |
102 } | |
103 | |
104 | |
105 const std::vector<float>& OpenGLTextCoordinates::GetRenderingCoords() const | |
106 { | |
107 assert(renderingCoords_.size() == textureCoords_.size()); | |
108 return renderingCoords_; | |
109 } | |
110 | |
111 | |
112 const std::vector<float>& OpenGLTextCoordinates::GetTextureCoords() const | |
113 { | |
114 assert(renderingCoords_.size() == textureCoords_.size()); | |
115 return textureCoords_; | |
116 } | |
117 } | |
118 } |