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Diffstat (limited to 'examples/sensors/cubehouse/painter_shader.cpp')
| -rw-r--r-- | examples/sensors/cubehouse/painter_shader.cpp | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/examples/sensors/cubehouse/painter_shader.cpp b/examples/sensors/cubehouse/painter_shader.cpp new file mode 100644 index 00000000..0e9f364c --- /dev/null +++ b/examples/sensors/cubehouse/painter_shader.cpp @@ -0,0 +1,159 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "painter.h" +#include "light.h" +#include "lightmodel.h" +#include "material.h" +#include <QtOpenGL/qglshaderprogram.h> + +ShaderPainter::ShaderPainter() +{ + materialProgram = new QGLShaderProgram(); + materialProgram->addShaderFromSourceFile + (QGLShader::Vertex, QLatin1String(":/lighting.vsh")); + materialProgram->addShaderFromSourceFile + (QGLShader::Fragment, QLatin1String(":/material.fsh")); + materialProgram->bindAttributeLocation("vertex", 0); + materialProgram->bindAttributeLocation("normal", 1); + materialProgram->bindAttributeLocation("texcoord", 2); + materialProgram->link(); + + textureProgram = new QGLShaderProgram(); + textureProgram->addShaderFromSourceFile + (QGLShader::Vertex, QLatin1String(":/lighting.vsh")); + textureProgram->addShaderFromSourceFile + (QGLShader::Fragment, QLatin1String(":/texture.fsh")); + textureProgram->bindAttributeLocation("vertex", 0); + textureProgram->bindAttributeLocation("normal", 1); + textureProgram->bindAttributeLocation("texcoord", 2); + textureProgram->link(); + + currentProgram = 0; + matricesChanged = false; +} + +ShaderPainter::~ShaderPainter() +{ + delete materialProgram; + delete textureProgram; +} + +void ShaderPainter::setMatrices(const QMatrix4x4 &mv, const QMatrix4x4 &proj) +{ + combinedMatrix = proj * mv; + modelViewMatrix = mv; + normalMatrix = mv.normalMatrix(); + matricesChanged = true; +} + +void ShaderPainter::selectMaterial(Material *material) +{ + if (currentProgram != materialProgram) { + materialProgram->bind(); + materialProgram->enableAttributeArray(0); + materialProgram->enableAttributeArray(1); + materialProgram->disableAttributeArray(2); + currentProgram = materialProgram; + matricesChanged = true; + } + if (matricesChanged) { + materialProgram->setUniformValue("matrix", combinedMatrix); + materialProgram->setUniformValue("modelView", modelViewMatrix); + materialProgram->setUniformValue("normalMatrix", normalMatrix); + matricesChanged = false; + } + updateMaterials(materialProgram, material); +} + +void ShaderPainter::selectTexturedMaterial(Material *material) +{ + if (currentProgram != textureProgram) { + textureProgram->bind(); + textureProgram->enableAttributeArray(0); + textureProgram->enableAttributeArray(1); + textureProgram->enableAttributeArray(2); + textureProgram->setUniformValue("tex", 0); + currentProgram = textureProgram; + matricesChanged = true; + } + if (matricesChanged) { + textureProgram->setUniformValue("matrix", combinedMatrix); + textureProgram->setUniformValue("modelView", modelViewMatrix); + textureProgram->setUniformValue("normalMatrix", normalMatrix); + matricesChanged = false; + } + updateMaterials(textureProgram, material); +} + +void ShaderPainter::setVertices(const float *array, int stride) +{ + // Doesn't matter which program we use - they have the same locations. + materialProgram->setAttributeArray(0, array, 3, stride * sizeof(float)); +} + +void ShaderPainter::setTexCoords(const float *array, int stride) +{ + materialProgram->setAttributeArray(2, array, 2, stride * sizeof(float)); +} + +void ShaderPainter::setNormals(const float *array, int stride) +{ + materialProgram->setAttributeArray(1, array, 3, stride * sizeof(float)); +} + +void ShaderPainter::updateMaterials + (QGLShaderProgram *program, Material *material) +{ + // Set the uniform variables for the light. + QVector4D pli = light->eyePosition(QMatrix4x4()); + program->setUniformValue("pli", QVector3D(pli.x(), pli.y(), pli.z())); + program->setUniformValue("pliw", GLfloat(pli.w())); + + // Set the uniform variables for the light model. + program->setUniformValue("viewerAtInfinity", (int)(lightModel->viewerPosition() == LightModel::ViewerAtInfinity)); + program->setUniformValue("acs", lightModel->ambientSceneColor()); + + // Set the uniform variables for the material. + program->setUniformValue("acm", material->ambientColor()); + program->setUniformValue("dcm", material->diffuseColor()); + program->setUniformValue("scm", material->specularColor()); + program->setUniformValue("srm", (float)(material->shininess())); +} |