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Diffstat (limited to 'src/threed/effects/qglcolladafxeffect.cpp')
| -rw-r--r-- | src/threed/effects/qglcolladafxeffect.cpp | 410 |
1 files changed, 0 insertions, 410 deletions
diff --git a/src/threed/effects/qglcolladafxeffect.cpp b/src/threed/effects/qglcolladafxeffect.cpp deleted file mode 100644 index 665c0ea7..00000000 --- a/src/threed/effects/qglcolladafxeffect.cpp +++ /dev/null @@ -1,410 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtQuick3D module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser General Public -** License version 2.1 as published by the Free Software Foundation and -** appearing in the file LICENSE.LGPL included in the packaging of this -** file. Please review the following information to ensure the GNU Lesser -** General Public License version 2.1 requirements will be met: -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU General -** Public License version 3.0 as published by the Free Software Foundation -** and appearing in the file LICENSE.GPL included in the packaging of this -** file. Please review the following information to ensure the GNU General -** Public License version 3.0 requirements will be met: -** http://www.gnu.org/copyleft/gpl.html. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <QString> -#include <QXmlStreamReader> -#include <QFile> -#include <QDebug> -#include <QImage> -#include "qgl.h" -#include "qgltexture2d.h" -#include "qglcolladafxeffect.h" -#include "qglcolladafxeffect_p.h" - -QT_BEGIN_NAMESPACE - -QGLColladaFxEffect::QGLColladaFxEffect() : QGLShaderProgramEffect() - , d( new QGLColladaFxEffectPrivate ) -{ -} - -QGLColladaFxEffect::QGLColladaFxEffect(const QGLColladaFxEffect&) : QGLShaderProgramEffect() -{ - Q_ASSERT(false); -}; - - -QGLColladaFxEffect::~QGLColladaFxEffect() -{ - delete d; -} - - - -QGLColladaFxEffectPrivate::QGLColladaFxEffectPrivate() : id() - , sid() - , name() - , emissiveTexture(0) - , ambientTexture(0) - , diffuseTexture(0) - , specularTexture(0) - , lighting(QGLColladaFxEffect::NoLighting) - , material(0) -{ - resetGlueSnippets(); -} - - - -QGLColladaFxEffectPrivate::~QGLColladaFxEffectPrivate() -{ - delete emissiveTexture; - emissiveTexture = 0; - delete ambientTexture; - ambientTexture = 0; - delete diffuseTexture; - diffuseTexture = 0; - delete specularTexture; - specularTexture = 0; - delete material; - material = 0; - -} - - - -inline void QGLColladaFxEffectPrivate::updateMaterialChannelSnippets(QString channelName, QGLTexture2D* texture, int* textureUnit, QColor fallbackColor) -{ - QString qVariableName = QLatin1String("q") + channelName; - if (texture != 0) - { - QString sourceVariableName = QLatin1String("texture") + channelName; - QString texVariableName = QString(QLatin1String("texCoord%1")).arg(*textureUnit); - // Take care of texture coordinates - QString varyingSnippet = QString(QLatin1String("varying vec4 %1;")).arg(texVariableName); - vertexShaderDeclarationSnippets.append(varyingSnippet); - vertexShaderVariableNames.append(texVariableName); - fragmentShaderDeclarationSnippets.append(varyingSnippet); - fragmentShaderVariableNames.append(texVariableName); - - vertexShaderCodeSnippets.append(QString(QLatin1String("%1 = texCoords; // TODO: dynamically add tex attributes\n")).arg(texVariableName)); - vertexShaderVariableNames.append(texVariableName); - - // Declare the color variable in the fragment shader - fragmentShaderDeclarationSnippets.append(QString(QLatin1String("lowp vec4 %1;")).arg(qVariableName)); - fragmentShaderVariableNames.append(qVariableName); - fragmentShaderDeclarationSnippets.append(QString(QLatin1String("uniform sampler2D %1;")).arg(sourceVariableName)); - fragmentShaderVariableNames.append(sourceVariableName); - - // Assign a colour to the variable out of the appropriate sampler - fragmentShaderCodeSnippets.append(QLatin1String(" mediump vec4 ") + qVariableName + QLatin1String(" = texture2D(") + sourceVariableName + QLatin1String(", ") + texVariableName + QLatin1String(".st);")); - fragmentShaderVariableNames.append(qVariableName); - // mediump? lowp? - - *textureUnit++; - } else { - fragmentShaderDeclarationSnippets.append(QString (QLatin1String("const vec4 %1 = vec4(%2, %3, %4, %5);")).arg( qVariableName).arg(fallbackColor.redF(), 0, 'f', 6).arg(fallbackColor.greenF(), 0, 'f', 6).arg(fallbackColor.blueF(), 0, 'f', 6).arg(fallbackColor.alphaF(), 0, 'f', 6 )); - fragmentShaderVariableNames.append(qVariableName); - } -} - - - -inline void QGLColladaFxEffectPrivate::setTextureUniform(QGLShaderProgram *program, QGLPainter* painter, QString channelName, QGLTexture2D* texture, int* textureUnit, QColor fallbackColor) -{ - QString qVariableName = QLatin1String("q") + channelName; - - if (texture != 0) - { - QString sourceVariableName = QLatin1String("texture") + channelName; - QString texVariableName = QString(QLatin1String("texCoord%1")).arg(*textureUnit); - painter->glActiveTexture(GL_TEXTURE0 + *textureUnit); - texture->bind(); - program->setUniformValue(sourceVariableName.toAscii().data(), *textureUnit); - } - else - { - // It's just a const value, so set it that way in the fragment shader. - program->setUniformValue(qVariableName.toAscii().data(), fallbackColor); - } -} - - - -void QGLColladaFxEffect::update(QGLPainter *painter, QGLPainter::Updates updates) -{ - QGLShaderProgramEffect::update(painter, updates); - - if (updates && QGLPainter::UpdateMaterials) - { - - if (program() == 0) - { - qWarning() << "no program in QGLColladaFxEffect::update()"; - return; - } - - // Start from texture unit 1 so as not to stomp a texture set on the - // painter. - int textureUnit = 1; - d->setTextureUniform( - program(), painter, QLatin1String("Emissive"), d->emissiveTexture, - &textureUnit, - material() ? material()->emittedLight() : QColor()); - - d->setTextureUniform( - program(), painter, QLatin1String("Ambient"), d->ambientTexture, &textureUnit, - material() ? material()->ambientColor() : QColor()); - - d->setTextureUniform( - program(), painter, QLatin1String("Diffuse"), d->diffuseTexture, &textureUnit, - material() ? material()->diffuseColor() : QColor()); - - d->setTextureUniform( - program(), painter, QLatin1String("Specular"), d->specularTexture, - &textureUnit, - material() ? material()->specularColor() : QColor()); - } -} - - - -void QGLColladaFxEffect::setId(QString id) -{ - d->id = id; -} - - - -QString QGLColladaFxEffect::id() -{ - return d->id; -} - - - -void QGLColladaFxEffect::setSid(QString sid) -{ - d->sid = sid; -} - - - -void QGLColladaFxEffectPrivate::addMaterialChannelsToShaderSnippets(const QGLMaterial *material) -{ - int textureUnit = 1; - - updateMaterialChannelSnippets(QLatin1String("Emissive"), emissiveTexture, &textureUnit, material->emittedLight()); - updateMaterialChannelSnippets(QLatin1String("Ambient"), ambientTexture, &textureUnit, material->ambientColor()); - updateMaterialChannelSnippets(QLatin1String("Diffuse"), diffuseTexture, &textureUnit, material->diffuseColor()); - updateMaterialChannelSnippets(QLatin1String("Specular"), specularTexture, &textureUnit, material->specularColor()); -} - - - -void QGLColladaFxEffect::addBlinnPhongLighting() -{ - d->addMaterialChannelsToShaderSnippets(material()); - - // Fragment shader declarations: - d->fragmentShaderDeclarationSnippets.append(QLatin1String("uniform mediump sampler2D texture0;")); - d->fragmentShaderVariableNames.append(QLatin1String("texture0")); - d->fragmentShaderDeclarationSnippets.append(QLatin1String("varying highp vec4 qt_TexCoord0;")); - d->fragmentShaderVariableNames.append(QLatin1String("qt_TexCoord0")); - - // Fragment Shader code - d->fragmentShaderCodeSnippets.append(QLatin1String( - " vec4 specularComponent = vec4( 0.0, 0.0, 0.0, 0.0 );\n"\ - " if (intensity > 0.0)\n"\ - " {\n"\ - " float specularIntensity = max( dot(perPixelNormal, qHalfVector), 0.0 );\n"\ - " if (specularIntensity > 0.0)\n"\ - " specularComponent = qSpecular * pow(specularIntensity, shininess);\n"\ - " }\n")); - d->fragmentShaderVariableNames.append(QLatin1String("lighting")); - - - // Replace the "end glue" to set colour from lighting - d->fragmentShaderEndGlueSnippet = QLatin1String( - " vec4 texture0Color = texture2D(texture0, qt_TexCoord0.st);\n"\ - " vec4 diffuseColor = qDiffuse;\n"\ - " vec4 lightingColor = qAmbient + diffuseColor * intensity + specularComponent;\n"\ - " vec4 texturedColor = vec4(lightingColor.xyz * (1.0 - texture0Color.a)\n"\ - "+ (texture0Color.xyz + specularComponent.rgb) * texture0Color.a, lightingColor.a);\n"\ - " gl_FragColor = texturedColor;\n"\ - "}"); - generateShaders(); -} - - - -void QGLColladaFxEffect::generateShaders() -{ - if (vertexShader().isEmpty()) - { - QString shader = - d->vertexShaderDeclarationSnippets.join(QLatin1String("\n")) - + QLatin1String("\n") + d->vertexShaderMainGlueSnippet - + d->vertexShaderCodeSnippets.join(QLatin1String("\n")) - + QLatin1String("\n") + d->vertexShaderEndGlueSnippet; - setVertexShader(shader.toLatin1()); - } - - if (fragmentShader().isEmpty()) - { - QString shader = - d->fragmentShaderDeclarationSnippets.join(QLatin1String("\n")) - + QLatin1String("\n") + d->fragmentShaderMainGlueSnippet - + d->fragmentShaderCodeSnippets.join(QLatin1String("\n")) - + QLatin1String("\n") + d->fragmentShaderEndGlueSnippet; - setFragmentShader(shader.toLatin1()); - } -} - - - -void QGLColladaFxEffectPrivate::resetGlueSnippets() -{ - vertexShaderMainGlueSnippet = QLatin1String( - "attribute highp vec4 vertex;\n"\ - "attribute highp vec4 normal;\n"\ - "attribute highp vec4 texCoords;\n"\ - "uniform highp mat4 matrix;\n"\ - "uniform highp mat3 qt_NormalMatrix;\n"\ - "varying mediump vec3 qNormal;\n"\ - "varying mediump vec3 qLightDirection;\n"\ - "varying mediump vec3 qHalfVector;\n"\ - "uniform mediump vec3 pli; // Position of the light\n"\ - "varying highp vec4 qt_TexCoord0; // TEMP\n" /* Got to get rid of this*/\ - "\n"\ - "void qLightVertex(vec4 vertex, vec3 normal)\n"\ - "{\n"\ - " vec3 toEye;\n"\ - " qLightDirection = normalize(pli);\n"\ - " toEye = vec3(0, 0, 1); // assume viewer at infinity\n"\ - " qHalfVector = normalize(qLightDirection + toEye);\n"\ - "}\n"\ - "\n"\ - "void main(void)\n"\ - "{\n"\ - " qNormal = normalize(qt_NormalMatrix * vec3(normal));\n"\ - " qLightVertex(vertex, qNormal);\n"\ - " qt_TexCoord0 = texCoords;\n"\ - ); - - vertexShaderEndGlueSnippet = QLatin1String ( - " gl_Position = matrix * vertex;\n"\ - "}\n"); - - - fragmentShaderEndGlueSnippet = QLatin1String( - " gl_FragColor = color;\n"\ - "}\n" - ); - - fragmentShaderMainGlueSnippet = QLatin1String( - "varying mediump vec3 qNormal;\n"\ - "varying mediump vec3 qLightDirection;\n"\ - "varying mediump vec3 qHalfVector;\n"\ - "uniform float shininess;\n"\ - "uniform vec4 color;\n"\ - "vec3 perPixelNormal;" - "\n"\ - "void main()\n"\ - "{\n"\ - " perPixelNormal = normalize(qNormal);\n"\ - " float intensity = max(dot(perPixelNormal, qLightDirection), 0.0);\n" - ); -} - - - -QString QGLColladaFxEffect::sid() -{ - return d->sid; -} - - - -QGLTexture2D* QGLColladaFxEffect::diffuseTexture() -{ - return d->diffuseTexture; -} - - -void QGLColladaFxEffect::setLighting(int lighting) -{ - d->lighting = lighting; -} - -int QGLColladaFxEffect::lighting() -{ - return d->lighting; -} - -/*! - Sets this effect to use \a newMaterial. If \a newMaterial is 0, sets this - effect to have no material, and instead use whatever material is set - on the QGLPainter. - - \sa QGLPainter, material() -*/ -void QGLColladaFxEffect::setMaterial(QGLMaterial* newMaterial) -{ - d->material = newMaterial; -} - -/*! - Returns a pointer to the material of this effect. If the effect has no material, - this function returns 0; -*/ -QGLMaterial* QGLColladaFxEffect::material() -{ - return d->material; -} - -/*! - Returns true if the effect is currently active (applied to a QGLPainter) - and false if it is not. - */ -bool QGLColladaFxEffect::isActive() -{ - return d->currentlyActive; -} - -void QGLColladaFxEffect::setActive(QGLPainter *painter, bool flag) -{ - d->currentlyActive = flag && !vertexShader().isEmpty() && - !fragmentShader().isEmpty(); - QGLShaderProgramEffect::setActive(painter, d->currentlyActive); -} - -QT_END_NAMESPACE |