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authorMichael Brasser <michael.brasser@nokia.com>2009-04-22 04:47:24 (GMT)
committerMichael Brasser <michael.brasser@nokia.com>2009-04-22 04:47:24 (GMT)
commit2366667fc97eb6a56203b2dd7dac776ff4164abd (patch)
treeb2acb6cc6bfe475d7e619e4788973b61fff775e0 /src/declarative/opengl/glbasicshaders.cpp
parent2c762f3b8b284a7c6dc0c499b7052013bad5b707 (diff)
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Initial import of kinetic-dui branch from the old kinetic
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diff --git a/src/declarative/opengl/glbasicshaders.cpp b/src/declarative/opengl/glbasicshaders.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "glbasicshaders.h"
+#include <QDebug>
+#include <QColor>
+
+
+QT_BEGIN_NAMESPACE
+SingleTextureVertexOpacityShader::SingleTextureVertexOpacityShader()
+{
+ QGLShader vert(QGLShader::VertexShader);
+ QGLShader frag(QGLShader::FragmentShader);
+
+ vert.setSourceCode("\
+ attribute highp vec4 myVertex;\
+ attribute lowp float myOpacity;\
+ attribute mediump vec4 myUV;\
+ uniform mediump mat4 myPMVMatrix;\
+ varying mediump vec2 myTexCoord;\
+ varying lowp float myFragOpacity;\
+ void main(void)\
+ {\
+ gl_Position = myPMVMatrix * myVertex;\
+ myTexCoord = myUV.st;\
+ myFragOpacity = myOpacity;\
+ }"
+ );
+
+ frag.setSourceCode("\
+ uniform sampler2D sampler2d;\
+ varying mediump vec2 myTexCoord;\
+ varying lowp float myFragOpacity;\
+ void main(void)\
+ {\
+ mediump vec4 frag = texture2D(sampler2d,myTexCoord);\
+ gl_FragColor = vec4(frag.rgb, frag.a * myFragOpacity);\
+ }"
+ );
+
+ addShader(&vert);
+ addShader(&frag);
+
+ bindAttributeLocation("myVertex", Vertices);
+ bindAttributeLocation("myUV", TextureCoords);
+ bindAttributeLocation("myOpacity", OpacityCoords);
+}
+
+bool SingleTextureVertexOpacityShader::link()
+{
+ if (!QGLShaderProgram::link())
+ return false;
+ transform = uniformLocation("myPMVMatrix");
+ enable();
+ setUniformValue("sampler2d", 0);
+ disable();
+ return true;
+}
+
+void SingleTextureVertexOpacityShader::setTransform(const QMatrix4x4 &matrix)
+{
+ setUniformValue(transform, matrix);
+}
+
+BlurTextureShader::BlurTextureShader()
+{
+ QGLShader vert(QGLShader::VertexShader);
+ QGLShader frag(QGLShader::FragmentShader);
+
+ vert.setSourceCode("\
+ attribute highp vec4 myVertex;\
+ attribute mediump vec4 myUV;\
+ uniform mediump mat4 myPMVMatrix;\
+ varying mediump vec2 myTexCoord;\
+ void main(void)\
+ {\
+ gl_Position = myPMVMatrix * myVertex;\
+ myTexCoord = myUV.st;\
+ }"
+ );
+
+#if 0
+ frag.setSourceCode("\
+ uniform sampler2D sampler2d;\
+ uniform bool horizontal; \
+ uniform mediump float blurStep; \
+ varying mediump vec2 myTexCoord;\
+ void main(void)\
+ {\
+ mediump vec4 accum = vec4(0, 0, 0, 0); \
+ mediump vec2 offset; \
+ if(horizontal) \
+ offset = vec2(blurStep, 0); \
+ else \
+ offset = vec2(0, blurStep); \
+ accum += texture2D(sampler2d, myTexCoord + 2.0 * offset); \
+ accum += 2.0 * texture2D(sampler2d, myTexCoord + 1.0 * offset); \
+ accum += 4.0 * texture2D(sampler2d, myTexCoord + 0.0 * offset); \
+ accum += 2.0 * texture2D(sampler2d, myTexCoord - 1.0 * offset); \
+ accum += texture2D(sampler2d, myTexCoord - 2.0 * offset); \
+ gl_FragColor = accum / 10.0; \
+ }"
+ );
+#else
+ frag.setSourceCode("\
+ uniform sampler2D sampler2d;\
+ uniform bool horizontal; \
+ uniform mediump float blurStep; \
+ uniform int blurSteps; \
+ varying mediump vec2 myTexCoord;\
+ void main(void)\
+ {\
+ mediump vec4 accum = vec4(0, 0, 0, 0); \
+ mediump vec2 offset; \
+ if(horizontal) \
+ offset = vec2(blurStep, 0); \
+ else \
+ offset = vec2(0, blurStep); \
+ mediump float sum = 0.0; \
+ for(int ii = 0; ii < blurSteps; ++ii) { \
+ mediump float frac = float(blurSteps - ii) / float(blurSteps); \
+ mediump vec2 coord = myTexCoord + -float(ii) * offset; \
+ if(coord.x >= 0.0 && coord.y >= 0.0 && coord.y <= 1.0 && coord.x <=1.0) \
+ accum += texture2D(sampler2d, coord) * frac; \
+ sum += frac; \
+ } \
+ for(int ii = 1; ii < blurSteps; ++ii) { \
+ mediump float frac = float(blurSteps - ii) / float(blurSteps); \
+ mediump vec2 coord = myTexCoord + float(ii) * offset; \
+ if(coord.x <= 1.0 && coord.y <= 1.0 && coord.x >= 0.0 && coord.y >= 0.0) \
+ accum += texture2D(sampler2d, coord) * frac; \
+ sum += frac; \
+ } \
+ gl_FragColor = accum / sum; \
+ }"
+ );
+#endif
+
+ addShader(&vert);
+ addShader(&frag);
+
+ bindAttributeLocation("myVertex", Vertices);
+ bindAttributeLocation("myUV", TextureCoords);
+}
+
+bool BlurTextureShader::link()
+{
+ if (!QGLShaderProgram::link())
+ return false;
+ transform = uniformLocation("myPMVMatrix");
+ mode = uniformLocation("horizontal");
+ step = uniformLocation("blurStep");
+ steps = uniformLocation("blurSteps");
+ enable();
+ setUniformValue("sampler2d", 0);
+ disable();
+ return true;
+}
+
+void BlurTextureShader::setStep(float f)
+{
+ setUniformValue(step, f);
+}
+
+void BlurTextureShader::setSteps(int s)
+{
+ setUniformValue(steps, s);
+}
+
+void BlurTextureShader::setMode(Mode m)
+{
+ if(m == Horizontal)
+ setUniformValue(mode, 1);
+ else
+ setUniformValue(mode, 0);
+}
+
+void BlurTextureShader::setTransform(const QMatrix4x4 &matrix)
+{
+ setUniformValue(transform, matrix);
+}
+
+DualTextureBlendShader::DualTextureBlendShader()
+{
+ QGLShader vert(QGLShader::VertexShader);
+ QGLShader frag(QGLShader::FragmentShader);
+
+ vert.setSourceCode("\
+ attribute highp vec4 myVertex;\
+ attribute mediump vec4 myUV;\
+ attribute mediump vec4 myBlendUV;\
+ uniform mediump mat4 myPMVMatrix;\
+ varying mediump vec2 myTexCoord;\
+ varying mediump vec2 myBlendTexCoord;\
+ void main(void)\
+ {\
+ gl_Position = myPMVMatrix * myVertex;\
+ myTexCoord = myUV.st;\
+ myBlendTexCoord = myBlendUV.st;\
+ }"
+ );
+
+ frag.setSourceCode("\
+ uniform sampler2D sampler2d;\
+ uniform sampler2D sampler2dBlend;\
+ uniform lowp float myOpacity;\
+ uniform lowp float myBlend; \
+ varying mediump vec2 myTexCoord;\
+ varying mediump vec2 myBlendTexCoord;\
+ void main(void)\
+ {\
+ mediump vec4 tex = texture2D(sampler2d,myTexCoord);\
+ mediump vec4 blendtex = texture2D(sampler2dBlend, myBlendTexCoord);\
+ gl_FragColor = mix(tex, blendtex, myBlend) * myOpacity; \
+ }"
+ );
+
+ addShader(&vert);
+ addShader(&frag);
+
+ bindAttributeLocation("myVertex", Vertices);
+ bindAttributeLocation("myUV", TextureCoords);
+ bindAttributeLocation("myBlendUV", BlendTextureCoords);
+}
+
+bool DualTextureBlendShader::link()
+{
+ if (!QGLShaderProgram::link())
+ return false;
+ transform = uniformLocation("myPMVMatrix");
+ opacity = uniformLocation("myOpacity");
+ blend = uniformLocation("myBlend");
+ enable();
+ setUniformValue("sampler2d", 0);
+ setUniformValue("sampler2dBlend", 1);
+ disable();
+ return true;
+}
+
+void DualTextureBlendShader::setOpacity(GLfloat o)
+{
+ setUniformValue(opacity, o);
+}
+
+void DualTextureBlendShader::setBlend(GLfloat b)
+{
+ setUniformValue(blend, b);
+}
+
+void DualTextureBlendShader::setTransform(const QMatrix4x4 &matrix)
+{
+ setUniformValue(transform, matrix);
+}
+
+DualTextureAddShader::DualTextureAddShader()
+{
+ QGLShader vert(QGLShader::VertexShader);
+ QGLShader frag(QGLShader::FragmentShader);
+
+ vert.setSourceCode("\
+ attribute highp vec4 myVertex;\
+ attribute mediump vec4 myUV;\
+ attribute mediump vec4 myAddUV;\
+ uniform mediump mat4 myPMVMatrix;\
+ varying mediump vec2 myTexCoord;\
+ varying mediump vec2 myAddTexCoord;\
+ void main(void)\
+ {\
+ gl_Position = myPMVMatrix * myVertex;\
+ myTexCoord = myUV.st;\
+ myAddTexCoord = myAddUV.st;\
+ }"
+ );
+
+ frag.setSourceCode("\
+ uniform sampler2D sampler2d;\
+ uniform sampler2D sampler2dAdd;\
+ uniform lowp float myOpacity;\
+ varying mediump vec2 myTexCoord;\
+ varying mediump vec2 myAddTexCoord;\
+ void main(void)\
+ {\
+ mediump vec4 tex = texture2D(sampler2d,myTexCoord);\
+ mediump vec4 addtex = texture2D(sampler2dAdd, myAddTexCoord);\
+ tex = tex + vec4(addtex.rgb * addtex.a * tex.a, 0); \
+ tex = min(tex, vec4(1, 1, 1, 1)); \
+ gl_FragColor = vec4(tex.rgb, tex.a) * myOpacity;\
+ }"
+ );
+
+ addShader(&vert);
+ addShader(&frag);
+
+ bindAttributeLocation("myVertex", Vertices);
+ bindAttributeLocation("myUV", TextureCoords);
+ bindAttributeLocation("myAddUV", AddTextureCoords);
+}
+
+void DualTextureAddShader::setOpacity(GLfloat f)
+{
+ setUniformValue(opacity, f);
+}
+
+void DualTextureAddShader::setTransform(const QMatrix4x4 &matrix)
+{
+ setUniformValue(transform, matrix);
+}
+
+bool DualTextureAddShader::link()
+{
+ if (!QGLShaderProgram::link())
+ return false;
+ transform = uniformLocation("myPMVMatrix");
+ opacity = uniformLocation("myOpacity");
+ enable();
+ setUniformValue("sampler2d", 0);
+ setUniformValue("sampler2dAdd", 1);
+ disable();
+ return true;
+}
+
+SingleTextureShader::SingleTextureShader()
+{
+ QGLShader vert(QGLShader::VertexShader);
+ QGLShader frag(QGLShader::FragmentShader);
+
+ vert.setSourceCode("\
+ attribute highp vec4 myVertex;\
+ attribute mediump vec4 myUV;\
+ uniform mediump mat4 myPMVMatrix;\
+ varying mediump vec2 myTexCoord;\
+ void main(void)\
+ {\
+ gl_Position = myPMVMatrix * myVertex;\
+ myTexCoord = myUV.st;\
+ }"
+ );
+
+ frag.setSourceCode("\
+ uniform sampler2D sampler2d;\
+ varying mediump vec2 myTexCoord;\
+ void main(void)\
+ {\
+ gl_FragColor = texture2D(sampler2d,myTexCoord);\
+ }"
+ );
+
+ addShader(&vert);
+ addShader(&frag);
+
+ bindAttributeLocation("myVertex", Vertices);
+ bindAttributeLocation("myUV", TextureCoords);
+}
+
+bool SingleTextureShader::link()
+{
+ if (!QGLShaderProgram::link())
+ return false;
+ transform = uniformLocation("myPMVMatrix");
+ enable();
+ setUniformValue("sampler2d", 0);
+ disable();
+ return true;
+}
+
+void SingleTextureShader::setTransform(const QMatrix4x4 &matrix)
+{
+ setUniformValue(transform, matrix);
+}
+
+ConstantColorShader::ConstantColorShader()
+{
+ QGLShader vert(QGLShader::VertexShader);
+ QGLShader frag(QGLShader::FragmentShader);
+
+ vert.setSourceCode("\
+ uniform mediump mat4 myPMVMatrix;\
+ attribute highp vec4 myVertex;\
+ void main(void)\
+ {\
+ gl_Position = myPMVMatrix * myVertex; \
+ }"
+ );
+
+ frag.setSourceCode("\
+ uniform lowp vec4 myColor;\
+ void main(void)\
+ {\
+ gl_FragColor = myColor;\
+ }"
+ );
+
+ addShader(&vert);
+ addShader(&frag);
+
+ bindAttributeLocation("myVertex", Vertices);
+}
+
+void ConstantColorShader::setColor(const QColor &c)
+{
+ setUniformValue(color, c);
+}
+
+void ConstantColorShader::setTransform(const QMatrix4x4 &matrix)
+{
+ setUniformValue(transform, matrix);
+}
+
+bool ConstantColorShader::link()
+{
+ if (!QGLShaderProgram::link())
+ return false;
+ transform = uniformLocation("myPMVMatrix");
+ color = uniformLocation("myColor");
+ return true;
+}
+
+ColorShader::ColorShader()
+{
+ QGLShader vert(QGLShader::VertexShader);
+ QGLShader frag(QGLShader::FragmentShader);
+
+ vert.setSourceCode("\
+ uniform mediump mat4 myPMVMatrix;\
+ attribute highp vec4 myVertex;\
+ attribute lowp vec4 myColors;\
+ varying lowp vec4 myColor;\
+ void main(void)\
+ {\
+ gl_Position = myPMVMatrix * myVertex; \
+ myColor = myColors; \
+ }"
+ );
+
+ frag.setSourceCode("\
+ varying lowp vec4 myColor;\
+ void main(void)\
+ {\
+ gl_FragColor = myColor;\
+ }"
+ );
+
+ addShader(&vert);
+ addShader(&frag);
+
+ bindAttributeLocation("myVertex", Vertices);
+ bindAttributeLocation("myColors", Colors);
+}
+
+void ColorShader::setTransform(const QMatrix4x4 &matrix)
+{
+ setUniformValue(transform, matrix);
+}
+
+bool ColorShader::link()
+{
+ if (!QGLShaderProgram::link())
+ return false;
+ transform = uniformLocation("myPMVMatrix");
+ return true;
+}
+
+class GLBasicShadersPrivate
+{
+public:
+ GLBasicShadersPrivate();
+ ~GLBasicShadersPrivate();
+
+ BlurTextureShader *blurTexture;
+ SingleTextureShader *singleTexture;
+ SingleTextureOpacityShader *singleTextureOpacity;
+ DualTextureAddShader *dualTextureAdd;
+ SingleTextureShadowShader *singleTextureShadow;
+ SingleTextureVertexOpacityShader *singleTextureVertexOpacity;
+ ConstantColorShader *constantColor;
+ ColorShader *color;
+};
+
+GLBasicShadersPrivate::GLBasicShadersPrivate()
+: blurTexture(0), singleTexture(0), singleTextureOpacity(0),
+ dualTextureAdd(0), singleTextureShadow(0), singleTextureVertexOpacity(0),
+ constantColor(0), color(0)
+{
+}
+
+GLBasicShadersPrivate::~GLBasicShadersPrivate()
+{
+ delete blurTexture;
+ delete singleTexture;
+ delete singleTextureOpacity;
+ delete dualTextureAdd;
+ delete singleTextureVertexOpacity;
+ delete singleTextureShadow;
+ delete constantColor;
+ delete color;
+}
+
+GLBasicShaders::GLBasicShaders()
+: d(new GLBasicShadersPrivate)
+{
+}
+
+GLBasicShaders::~GLBasicShaders()
+{
+ delete d;
+}
+
+BlurTextureShader *GLBasicShaders::blurTexture()
+{
+ if(!d->blurTexture) d->blurTexture = new BlurTextureShader();
+ return d->blurTexture;
+}
+
+SingleTextureShader *GLBasicShaders::singleTexture()
+{
+ if(!d->singleTexture) d->singleTexture = new SingleTextureShader();
+ return d->singleTexture;
+}
+
+SingleTextureOpacityShader *GLBasicShaders::singleTextureOpacity()
+{
+ if(!d->singleTextureOpacity) d->singleTextureOpacity = new SingleTextureOpacityShader();
+ return d->singleTextureOpacity;
+}
+
+DualTextureAddShader *GLBasicShaders::dualTextureAdd()
+{
+ if(!d->dualTextureAdd) d->dualTextureAdd = new DualTextureAddShader();
+ return d->dualTextureAdd;
+}
+
+SingleTextureVertexOpacityShader *GLBasicShaders::singleTextureVertexOpacity()
+{
+ if(!d->singleTextureVertexOpacity) d->singleTextureVertexOpacity = new SingleTextureVertexOpacityShader();
+ return d->singleTextureVertexOpacity;
+}
+
+SingleTextureShadowShader *GLBasicShaders::singleTextureShadow()
+{
+ if(!d->singleTextureShadow) d->singleTextureShadow = new SingleTextureShadowShader();
+ return d->singleTextureShadow;
+}
+
+ConstantColorShader *GLBasicShaders::constantColor()
+{
+ if(!d->constantColor) d->constantColor = new ConstantColorShader();
+ return d->constantColor;
+}
+
+ColorShader *GLBasicShaders::color()
+{
+ if(!d->color) d->color = new ColorShader();
+ return d->color;
+}
+
+SingleTextureOpacityShader::SingleTextureOpacityShader()
+{
+ QGLShader vert(QGLShader::VertexShader);
+ QGLShader frag(QGLShader::FragmentShader);
+
+ vert.setSourceCode("\
+ attribute highp vec4 myVertex;\
+ attribute mediump vec4 myUV;\
+ uniform mediump mat4 myPMVMatrix;\
+ varying mediump vec2 myTexCoord;\
+ void main(void)\
+ {\
+ gl_Position = myPMVMatrix * myVertex;\
+ myTexCoord = myUV.st;\
+ }"
+ );
+
+ frag.setSourceCode("\
+ uniform sampler2D sampler2d;\
+ uniform lowp float myOpacity;\
+ varying mediump vec2 myTexCoord;\
+ void main(void)\
+ {\
+ mediump vec4 tex = texture2D(sampler2d,myTexCoord);\
+ gl_FragColor = vec4(tex.rgb, myOpacity * tex.a);\
+ }"
+ );
+
+ addShader(&vert);
+ addShader(&frag);
+
+ bindAttributeLocation("myVertex", Vertices);
+ bindAttributeLocation("myUV", TextureCoords);
+}
+
+bool SingleTextureOpacityShader::link()
+{
+ if (!QGLShaderProgram::link())
+ return false;
+ transform = uniformLocation("myPMVMatrix");
+ opacity = uniformLocation("myOpacity");
+ enable();
+ setUniformValue("sampler2d", 0);
+ disable();
+ return true;
+}
+
+void SingleTextureOpacityShader::setTransform(const QMatrix4x4 &matrix)
+{
+ setUniformValue(transform, matrix);
+}
+
+void SingleTextureOpacityShader::setOpacity(GLfloat f)
+{
+ setUniformValue(opacity, f);
+}
+
+SingleTextureShadowShader::SingleTextureShadowShader()
+{
+ QGLShader vert(QGLShader::VertexShader);
+ QGLShader frag(QGLShader::FragmentShader);
+
+ vert.setSourceCode("\
+ attribute highp vec4 myVertex;\
+ attribute mediump vec4 myUV;\
+ uniform mediump mat4 myPMVMatrix;\
+ varying mediump vec2 myTexCoord;\
+ void main(void)\
+ {\
+ gl_Position = myPMVMatrix * myVertex;\
+ myTexCoord = myUV.st;\
+ }"
+ );
+
+ frag.setSourceCode("\
+ uniform sampler2D sampler2d;\
+ uniform lowp float myOpacity;\
+ varying mediump vec2 myTexCoord;\
+ void main(void)\
+ {\
+ mediump vec4 tex = texture2D(sampler2d,myTexCoord);\
+ gl_FragColor = vec4(0, 0, 0, myOpacity * tex.a * .75);\
+ }"
+ );
+
+ addShader(&vert);
+ addShader(&frag);
+
+ bindAttributeLocation("myVertex", Vertices);
+ bindAttributeLocation("myUV", TextureCoords);
+}
+
+bool SingleTextureShadowShader::link()
+{
+ if (!QGLShaderProgram::link())
+ return false;
+ transform = uniformLocation("myPMVMatrix");
+ opacity = uniformLocation("myOpacity");
+ enable();
+ setUniformValue("sampler2d", 0);
+ disable();
+ return true;
+}
+
+void SingleTextureShadowShader::setTransform(const QMatrix4x4 &matrix)
+{
+ setUniformValue(transform, matrix);
+}
+
+void SingleTextureShadowShader::setOpacity(GLfloat f)
+{
+ setUniformValue(opacity, f);
+}
+QT_END_NAMESPACE