diff options
Diffstat (limited to 'demos/qt3d/photobrowser3d/qatlas.cpp')
| -rw-r--r-- | demos/qt3d/photobrowser3d/qatlas.cpp | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/demos/qt3d/photobrowser3d/qatlas.cpp b/demos/qt3d/photobrowser3d/qatlas.cpp deleted file mode 100644 index 24c9b6a3..00000000 --- a/demos/qt3d/photobrowser3d/qatlas.cpp +++ /dev/null @@ -1,188 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation ([email protected]) -** -** 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 "qatlas.h" -#include "qareaallocator.h" -#include "qgltexture2d.h" -#include "qglpainter.h" -#include "qgeometrydata.h" -#include "qglmaterial.h" -#include "qglpainter.h" -#include "qglframebufferobjectsurface.h" -#include "qglbuilder.h" - -#include <QImage> -#include <QThread> -#include <QGLFramebufferObject> -#include <QGLFramebufferObjectFormat> -#include <QCoreApplication> - -#ifndef GL_MULTISAMPLE -#define GL_MULTISAMPLE 0x809D -#endif - -QAtlas::QAtlas() - : m_size(1024, 1024) - , m_data(0) - , m_renderTarget(0) - , m_allocator(new QSimpleAreaAllocator(m_size)) - , m_tex(0) - , m_material(new QGLMaterial) - , m_initialized(false) - , m_count(0) -{ -} - -QAtlas::~QAtlas() -{ - delete m_data; - delete m_renderTarget; - delete m_allocator; -} - -void QAtlas::initialize(QGLPainter *painter) -{ - Q_UNUSED(painter); - if (!m_initialized) - { - m_data = new QGLFramebufferObject(m_size); - m_renderTarget = new QGLFramebufferObjectSurface(m_data); - m_tex = QGLTexture2D::fromTextureId(m_data->texture(), m_size); - m_material->setTexture(m_tex, 1); - m_material->setObjectName("Atlas material"); - m_initialized = true; - } -} - -void QAtlas::paint(QGLPainter *painter) -{ - Q_ASSERT(QThread::currentThread() == qApp->thread()); - - if (m_allocationQueue.isEmpty() || painter->isPicking()) - return; - - glDisable(GL_DEPTH_TEST); - - painter->pushSurface(m_renderTarget); - painter->setStandardEffect(QGL::FlatReplaceTexture2D); - painter->projectionMatrix().push(); - painter->modelViewMatrix().push(); - QRect rect = painter->currentSurface()->viewportRect(); - QMatrix4x4 proj; - proj.ortho(rect); - painter->projectionMatrix() = proj; - painter->modelViewMatrix().setToIdentity(); - - painter->update(); - - QAtlasEntry entry = m_allocationQueue.takeFirst(); - - QRect a = entry.rect; - QImage image = entry.image; - - if (a.left() == 0 && a.top() == 0) // first one - paint fill color - { - painter->setClearColor(Qt::red); - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - } - - QGLTexture2D t; - t.setImage(image); - t.bind(); - QVector3D va(a.left(), a.bottom()+1, 0); - QVector3D vb(a.right()+1, a.bottom()+1, 0); - QVector3D vc(a.right()+1, a.top(), 0); - QVector3D vd(a.left(), a.top(), 0); - QVector2D ta(0.0f, 0.0f); - QVector2D tb(1.0f, 0.0f); - QVector2D tc(1.0f, 1.0f); - QVector2D td(0.0f, 1.0f); - QGeometryData quad; - quad.setBufferStrategy(QGeometryData::KeepClientData); - quad.appendVertex(va, vb, vc, vd); - quad.appendTexCoord(ta, tb, tc, td); - quad.appendIndices(0, 1, 2); - quad.appendIndices(0, 2, 3); - quad.draw(painter, 0, 6); - - painter->popSurface(); - - glEnable(GL_DEPTH_TEST); -} - -QRect QAtlas::allocate(const QSize &size, const QImage &image, const QGL::IndexArray &indices) -{ - Q_ASSERT(QThread::currentThread() == qApp->thread()); - - QRect a = m_allocator->allocate(size); - if (a.isEmpty()) - { - qWarning("QAtlas::allocate: overflowed"); - return a; - } - - m_allocationQueue.append(QAtlasEntry(image, a)); - ++m_count; - - QRectF af(a); - QSizeF szf(m_size); - float l = af.left() / szf.width(); - float r = af.right() / szf.width(); - float t = 1.0f - (af.top() / szf.height()); - float b = 1.0f - (af.bottom() / szf.height()); - m_geometry.texCoord(indices.at(0), QGL::TextureCoord1) = QVector2D(l, b); - m_geometry.texCoord(indices.at(1), QGL::TextureCoord1) = QVector2D(r, b); - m_geometry.texCoord(indices.at(2), QGL::TextureCoord1) = QVector2D(r, t); - m_geometry.texCoord(indices.at(5), QGL::TextureCoord1) = QVector2D(l, t); - return a; -} - -void QAtlas::release(QRect frame) -{ - m_allocator->release(frame); -} - -Q_GLOBAL_STATIC(QAtlas, atlasInstance); - -QAtlas *QAtlas::instance() -{ - return atlasInstance(); -} |