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Diffstat (limited to 'src/quick/scenegraph/qsgdefaultinternalrectanglenode.cpp')
| -rw-r--r-- | src/quick/scenegraph/qsgdefaultinternalrectanglenode.cpp | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/src/quick/scenegraph/qsgdefaultinternalrectanglenode.cpp b/src/quick/scenegraph/qsgdefaultinternalrectanglenode.cpp new file mode 100644 index 0000000000..94414444ba --- /dev/null +++ b/src/quick/scenegraph/qsgdefaultinternalrectanglenode.cpp @@ -0,0 +1,159 @@ + +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtQuick module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qsgdefaultinternalrectanglenode_p.h" + +#include <QtQuick/qsgvertexcolormaterial.h> +#include <QtQuick/qsgtexturematerial.h> + +#include <QtQuick/private/qsgcontext_p.h> + +#include <QtCore/qmath.h> +#include <QtCore/qvarlengtharray.h> + +QT_BEGIN_NAMESPACE + +class SmoothColorMaterialShader : public QSGMaterialShader +{ +public: + SmoothColorMaterialShader(); + + virtual void updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect); + virtual char const *const *attributeNames() const; + +private: + virtual void initialize(); + + int m_matrixLoc; + int m_opacityLoc; + int m_pixelSizeLoc; +}; + +SmoothColorMaterialShader::SmoothColorMaterialShader() + : QSGMaterialShader() +{ + setShaderSourceFile(QOpenGLShader::Vertex, QStringLiteral(":/qt-project.org/scenegraph/shaders/smoothcolor.vert")); + setShaderSourceFile(QOpenGLShader::Fragment, QStringLiteral(":/qt-project.org/scenegraph/shaders/smoothcolor.frag")); +} + +void SmoothColorMaterialShader::updateState(const RenderState &state, QSGMaterial *, QSGMaterial *oldEffect) +{ + if (state.isOpacityDirty()) + program()->setUniformValue(m_opacityLoc, state.opacity()); + + if (state.isMatrixDirty()) + program()->setUniformValue(m_matrixLoc, state.combinedMatrix()); + + if (oldEffect == 0) { + // The viewport is constant, so set the pixel size uniform only once. + QRect r = state.viewportRect(); + program()->setUniformValue(m_pixelSizeLoc, 2.0f / r.width(), 2.0f / r.height()); + } +} + +char const *const *SmoothColorMaterialShader::attributeNames() const +{ + static char const *const attributes[] = { + "vertex", + "vertexColor", + "vertexOffset", + 0 + }; + return attributes; +} + +void SmoothColorMaterialShader::initialize() +{ + m_matrixLoc = program()->uniformLocation("matrix"); + m_opacityLoc = program()->uniformLocation("opacity"); + m_pixelSizeLoc = program()->uniformLocation("pixelSize"); +} + +QSGSmoothColorMaterial::QSGSmoothColorMaterial() +{ + setFlag(RequiresFullMatrixExceptTranslate, true); + setFlag(Blending, true); +} + +int QSGSmoothColorMaterial::compare(const QSGMaterial *) const +{ + return 0; +} + +QSGMaterialType *QSGSmoothColorMaterial::type() const +{ + static QSGMaterialType type; + return &type; +} + +QSGMaterialShader *QSGSmoothColorMaterial::createShader() const +{ + return new SmoothColorMaterialShader; +} + +QSGDefaultInternalRectangleNode::QSGDefaultInternalRectangleNode() +{ + setMaterial(&m_material); +} + +void QSGDefaultInternalRectangleNode::updateMaterialAntialiasing() +{ + if (m_antialiasing) + setMaterial(&m_smoothMaterial); + else + setMaterial(&m_material); +} + +void QSGDefaultInternalRectangleNode::updateMaterialBlending(QSGNode::DirtyState *state) +{ + // smoothed material is always blended, so no change in material state + if (material() == &m_material) { + bool wasBlending = (m_material.flags() & QSGMaterial::Blending); + bool isBlending = (m_gradient_stops.size() > 0 && !m_gradient_is_opaque) + || (m_color.alpha() < 255 && m_color.alpha() != 0) + || (m_pen_width > 0 && m_border_color.alpha() < 255); + if (wasBlending != isBlending) { + m_material.setFlag(QSGMaterial::Blending, isBlending); + *state |= QSGNode::DirtyMaterial; + } + } +} + +QT_END_NAMESPACE |