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PostProcessorAnaglyphPlugin.cc
1 /*===========================================================================*\
2 * *
3 * OpenFlipper *
4 * Copyright (c) 2001-2015, RWTH-Aachen University *
5 * Department of Computer Graphics and Multimedia *
6 * All rights reserved. *
7 * www.openflipper.org *
8 * *
9 *---------------------------------------------------------------------------*
10 * This file is part of OpenFlipper. *
11 *---------------------------------------------------------------------------*
12 * *
13 * Redistribution and use in source and binary forms, with or without *
14 * modification, are permitted provided that the following conditions *
15 * are met: *
16 * *
17 * 1. Redistributions of source code must retain the above copyright notice, *
18 * this list of conditions and the following disclaimer. *
19 * *
20 * 2. Redistributions in binary form must reproduce the above copyright *
21 * notice, this list of conditions and the following disclaimer in the *
22 * documentation and/or other materials provided with the distribution. *
23 * *
24 * 3. Neither the name of the copyright holder nor the names of its *
25 * contributors may be used to endorse or promote products derived from *
26 * this software without specific prior written permission. *
27 * *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS *
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
31 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
32 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, *
33 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, *
34 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR *
35 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
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37 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS *
38 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
39 * *
40 \*===========================================================================*/
41
42 /*===========================================================================*\
43 * *
44 * $Revision: 19248 $ *
45 * $LastChangedBy: moebius $ *
46 * $Date: 2014-07-21 14:27:08 +0200 (Mon, 21 Jul 2014) $ *
47 * *
48 \*===========================================================================*/
49
50 #include "PostProcessorAnaglyphPlugin.hh"
51
52 #include <ACG/GL/ScreenQuad.hh>
53 #include <ACG/GL/ShaderCache.hh>
54
55 #include <OpenFlipper/BasePlugin/PluginFunctions.hh>
56 #include <OpenFlipper/common/GlobalOptions.hh>
57
58
59 PostProcessorAnaglyphPlugin::PostProcessorAnaglyphPlugin()
60 {
61 }
62
63 PostProcessorAnaglyphPlugin::~PostProcessorAnaglyphPlugin()
64 {
65 }
66
67 QString PostProcessorAnaglyphPlugin::checkOpenGL() {
68 if (!ACG::openGLVersion(3, 0))
69 return QString("Insufficient OpenGL Version! OpenGL 3.0 or higher required");
70
71 return QString("");
72 }
73
74
75
76 QString PostProcessorAnaglyphPlugin::postProcessorName() {
77 return QString("AnaglyphStereo");
78 }
79
80
81 void PostProcessorAnaglyphPlugin::postProcess(ACG::GLState* _glstate, const std::vector<const PostProcessorInput*>& _input, const PostProcessorOutput& _output) {
82
83 if (_input.size() != 2) {
84 std::cerr << "PostProcessorAnaglyphPlugin: two input images required!" << std::endl;
85 return;
86 }
87
88 // ======================================================================================================
89 // Fetch shader from cache
90 // ======================================================================================================
91
92 QStringList macros;
93
94 if (OpenFlipper::Options::stereoMode () == OpenFlipper::Options::AnaglyphCustom)
95 macros.push_back("#define ANAGLYPH_CUSTOM");
96
97 GLSL::Program* shader = ACG::ShaderCache::getInstance()->getProgram("ScreenQuad/screenquad.glsl", "AnaglyphStereo/anaglyph.glsl", &macros);
98
99 // ======================================================================================================
100 // Bind input texture
101 // ======================================================================================================
102
103 _input[1]->bindColorTex(1);
104 _input[0]->bindColorTex(0);
105
106 // ======================================================================================================
107 // Bind output FBO
108 // ======================================================================================================
109
110 _output.bind();
111
112 // ======================================================================================================
113 // Setup render states
114 // ======================================================================================================
115
116 glDepthMask(1);
117 glColorMask(1,1,1,1);
118
119 glDisable(GL_DEPTH_TEST);
120 glDisable(GL_BLEND);
121
122 // ======================================================================================================
123 // Setup shader
124 // ======================================================================================================
125
126 shader->use();
127 shader->setUniform("SceneLeft", 0);
128 shader->setUniform("SceneRight", 1);
129
130 if (OpenFlipper::Options::stereoMode () == OpenFlipper::Options::AnaglyphCustom)
131 {
132 // column major
133 std::vector<float> le = OpenFlipper::Options::anaglyphLeftEyeColorMatrix();
134 std::vector<float> re = OpenFlipper::Options::anaglyphRightEyeColorMatrix();
135
136 ACG::GLMatrixf ml, mr;
137
138 for (int r = 0; r < 3; ++r)
139 {
140 for (int c = 0; c < 3; ++c)
141 {
142 ml(r,c) = le[c*3 + r];
143 mr(r,c) = re[c*3 + r];
144 }
145 }
146
147 shader->setUniformMat3("EyeColMatrixLeft", ml);
148 shader->setUniformMat3("EyeColMatrixRight", mr);
149 }
150
151 // ======================================================================================================
152 // Execute
153 // ======================================================================================================
154
155 ACG::ScreenQuad::draw(shader);
156
157
158 shader->disable();
159 }
160
161
162 #if QT_VERSION < 0x050000
163 Q_EXPORT_PLUGIN2( postprocessoranaglyphstereoplugin , PostProcessorAnaglyphPlugin );
164 #endif
165
PostProcessorOutput
Definition: PostProcessorInterface.hh:99
ACG::ScreenQuad::draw
static void draw(GLSL::Program *_prog=0)
Draw the screen quad.
Definition: ScreenQuad.cc:147
ACG::openGLVersion
bool openGLVersion(const int _major, const int _minor)
Definition: gl.cc:95
ACG::GLState
Definition: GLState.hh:220
ACG::ShaderCache::getProgram
GLSL::Program * getProgram(const ShaderGenDesc *_desc, const std::vector< unsigned int > &_mods)
Query a dynamically generated program from cache.
Definition: ShaderCache.cc:108
GLSL::Program::use
void use()
Enables the program object for using.
Definition: GLSLShader.cc:351
ACG::GLMatrixT< float >
ACG::ShaderCache::getInstance
static ShaderCache * getInstance()
Return instance of the ShaderCache singleton.
Definition: ShaderCache.cc:90
GlobalOptions.hh
GLSL::Program::setUniform
void setUniform(const char *_name, GLint _value)
Set int uniform to specified value.
Definition: GLSLShader.cc:391
GLSL::Program
GLSL program class.
Definition: GLSLShader.hh:217
PostProcessorAnaglyphPlugin
Definition: PostProcessorAnaglyphPlugin.hh:59
PluginFunctions.hh
GLSL::Program::disable
void disable()
Resets to standard rendering pipeline.
Definition: GLSLShader.cc:361
GLSL::Program::setUniformMat3
void setUniformMat3(const char *_name, const ACG::GLMatrixf &_value, bool _transposed=false)
Set 3x3fMatrix uniform to specified value.
Definition: GLSLShader.cc:669