Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Scene2D/Internals/OpenGLColorTextureProgram.cpp @ 1652:fa9e6bf84958
integrating pdf.js into Stone Web viewer
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 16 Nov 2020 20:47:53 +0100 |
parents | 8563ea5d8ae4 |
children | 9ac2a65d4172 |
rev | line source |
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591 | 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) 2017-2020 Osimis S.A., Belgium |
591 | 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 |
591 | 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/>. |
591 | 20 **/ |
21 | |
22 | |
23 #include "OpenGLColorTextureProgram.h" | |
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24 #include "OpenGLShaderVersionDirective.h" |
591 | 25 |
26 static const char* FRAGMENT_SHADER = | |
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27 ORTHANC_STONE_OPENGL_SHADER_VERSION_DIRECTIVE |
591 | 28 "uniform sampler2D u_texture; \n" |
29 "varying vec2 v_texcoord; \n" | |
30 "void main() \n" | |
31 "{ \n" | |
32 " gl_FragColor = texture2D(u_texture, v_texcoord); \n" | |
33 "}"; | |
34 | |
35 | |
36 namespace OrthancStone | |
37 { | |
38 namespace Internals | |
39 { | |
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40 OpenGLColorTextureProgram::OpenGLColorTextureProgram(OpenGL::IOpenGLContext& context) |
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41 : program_(context, FRAGMENT_SHADER) |
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42 , context_(context) |
591 | 43 { |
44 } | |
45 | |
46 | |
47 void OpenGLColorTextureProgram::Apply(OpenGL::OpenGLTexture& texture, | |
48 const AffineTransform2D& transform, | |
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49 unsigned int canvasWidth, |
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50 unsigned int canvasHeight, |
591 | 51 bool useAlpha) |
52 { | |
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53 if (!context_.IsContextLost()) |
591 | 54 { |
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55 OpenGLTextureProgram::Execution execution(program_, texture, transform, canvasWidth, canvasHeight); |
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56 |
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57 if (useAlpha) |
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58 { |
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59 glEnable(GL_BLEND); |
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60 glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); |
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61 execution.DrawTriangles(); |
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62 glDisable(GL_BLEND); |
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63 } |
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64 else |
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65 { |
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66 execution.DrawTriangles(); |
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67 } |
591 | 68 } |
69 } | |
70 } | |
71 } |