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Diffstat (limited to 'src/declarative/scenegraph/coreapi/qsgmaterial.cpp')
| -rw-r--r-- | src/declarative/scenegraph/coreapi/qsgmaterial.cpp | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/src/declarative/scenegraph/coreapi/qsgmaterial.cpp b/src/declarative/scenegraph/coreapi/qsgmaterial.cpp new file mode 100644 index 0000000000..4c4274419e --- /dev/null +++ b/src/declarative/scenegraph/coreapi/qsgmaterial.cpp @@ -0,0 +1,199 @@ +/**************************************************************************** +** +** 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 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 Technology Preview License Agreement accompanying +** this package. +** +** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qsgmaterial.h" +#include "qsgrenderer_p.h" + +QT_BEGIN_NAMESPACE + +QSGMaterialShader::QSGMaterialShader() + : m_compiled(false) +{ +} + +void QSGMaterialShader::activate() +{ + if (!m_compiled) + compile(); + + m_program.bind(); + char const *const *attr = attributeNames(); + for (int i = 0; attr[i]; ++i) { + if (*attr[i]) + m_program.enableAttributeArray(i); + } +} + +void QSGMaterialShader::deactivate() +{ + char const *const *attr = attributeNames(); + for (int i = 0; attr[i]; ++i) { + if (*attr[i]) + m_program.disableAttributeArray(i); + } +} + +void QSGMaterialShader::updateState(const RenderState &, QSGMaterial *, QSGMaterial *) +{ +} + +void QSGMaterialShader::compile() +{ + Q_ASSERT(!m_compiled); + + m_program.addShaderFromSourceCode(QGLShader::Vertex, vertexShader()); + m_program.addShaderFromSourceCode(QGLShader::Fragment, fragmentShader()); + + char const *const *attr = attributeNames(); +#ifndef QT_NO_DEBUG + int maxVertexAttribs = 0; + glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &maxVertexAttribs); + for (int i = 0; attr[i]; ++i) { + if (i >= maxVertexAttribs) { + qFatal("List of attribute names is either too long or not null-terminated.\n" + "Maximum number of attributes on this hardware is %i.\n" + "Vertex shader:\n%s\n" + "Fragment shader:\n%s\n", + maxVertexAttribs, vertexShader(), fragmentShader()); + } + if (*attr[i]) + m_program.bindAttributeLocation(attr[i], i); + } +#else + for (int i = 0; attr[i]; ++i) { + if (*attr[i]) + m_program.bindAttributeLocation(attr[i], i); + } +#endif + + if (!m_program.link()) { + qWarning("QSGMaterialShader: Shader compilation failed:"); + qWarning() << m_program.log(); + } + + m_compiled = true; + initialize(); +} + + +float QSGMaterialShader::RenderState::opacity() const +{ + Q_ASSERT(m_data); + return static_cast<const QSGRenderer *>(m_data)->renderOpacity(); +} + +QMatrix4x4 QSGMaterialShader::RenderState::combinedMatrix() const +{ + Q_ASSERT(m_data); + return static_cast<const QSGRenderer *>(m_data)->combinedMatrix(); +} + +QMatrix4x4 QSGMaterialShader::RenderState::modelViewMatrix() const +{ + Q_ASSERT(m_data); + return const_cast<QSGRenderer *>(static_cast<const QSGRenderer *>(m_data))->modelViewMatrix().top(); +} + +QRect QSGMaterialShader::RenderState::viewportRect() const +{ + Q_ASSERT(m_data); + return static_cast<const QSGRenderer *>(m_data)->viewportRect(); +} + +QRect QSGMaterialShader::RenderState::deviceRect() const +{ + Q_ASSERT(m_data); + return static_cast<const QSGRenderer *>(m_data)->deviceRect(); +} + +const QGLContext *QSGMaterialShader::RenderState::context() const +{ + return static_cast<const QSGRenderer *>(m_data)->glContext(); +} + + +#ifndef QT_NO_DEBUG +static int qt_material_count = 0; + +static void qt_print_material_count() +{ + qDebug("Number of leaked materials: %i", qt_material_count); + qt_material_count = -1; +} +#endif + +QSGMaterial::QSGMaterial() + : m_flags(0) +{ +#ifndef QT_NO_DEBUG + ++qt_material_count; + static bool atexit_registered = false; + if (!atexit_registered) { + atexit(qt_print_material_count); + atexit_registered = true; + } +#endif +} + +QSGMaterial::~QSGMaterial() +{ +#ifndef QT_NO_DEBUG + --qt_material_count; + if (qt_material_count < 0) + qDebug("Material destroyed after qt_print_material_count() was called."); +#endif +} + +void QSGMaterial::setFlag(Flags flags, bool set) +{ + if (set) + m_flags |= flags; + else + m_flags &= ~flags; +} + +int QSGMaterial::compare(const QSGMaterial *other) const +{ + Q_ASSERT(other && type() == other->type()); + return qint64(this) - qint64(other); +} + +QT_END_NAMESPACE |