1 files changed, 197 insertions, 0 deletions
diff --git a/src/core/render/backend/states/blendstate.cpp b/src/core/render/backend/states/blendstate.cpp
new file mode 100644
index 000000000..c15cc56b9
--- /dev/null
+++ b/src/core/render/backend/states/blendstate.cpp
@@ -0,0 +1,197 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt3D 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "blendstate.h"
+
+#include "qgraphicscontext.h"
+
+#include <QOpenGLFunctions_3_2_Core>
+
+namespace Qt3D {
+
+template <class State>
+State* getOrCreateImpl(const State& data)
+{
+    static QList<State*> static_instances;
+    foreach (State* ext, static_instances) {
+        if (ext->isEqual(data))
+            return ext;
+    }
+
+    State* result = new State(data);
+    static_instances.append(result);
+    return result;
+}
+
+void BlendState::apply(QGraphicsContext* gc) const
+{
+    Q_UNUSED(gc);
+    glEnable(GL_BLEND);
+    glBlendFunc( m_1, m_2 );
+}
+
+StateMaskSet BlendState::mask() const
+{
+    return BlendStateMask;
+}
+
+BlendState *BlendState::getOrCreate(GLenum src, GLenum dst)
+{
+    BlendState bs(src, dst);
+    return getOrCreateImpl(bs);
+}
+
+BlendState::BlendState(GLenum src, GLenum dst) :
+    GenericState2(src, dst)
+{
+}
+
+void BlendEquation::apply(QGraphicsContext *gc) const
+{
+    Q_UNUSED(gc);
+
+    if (!m_funcs) {
+        m_funcs = QOpenGLContext::currentContext()->versionFunctions<QOpenGLFunctions_3_2_Core>();
+        m_funcs->initializeOpenGLFunctions();
+    }
+
+    m_funcs->glBlendEquation(m_1);
+}
+
+BlendEquation *BlendEquation::getOrCreate(GLenum func)
+{
+    return getOrCreateImpl(BlendEquation(func));
+}
+
+BlendEquation::BlendEquation(GLenum func) :
+    GenericState1(func),
+    m_funcs(0)
+{
+}
+
+
+void AlphaFunc::apply(QGraphicsContext* gc) const
+{
+    Q_UNUSED(gc);
+    glEnable(GL_ALPHA_TEST);
+    glAlphaFunc( m_1, m_2 );
+}
+
+AlphaFunc *AlphaFunc::getOrCreate(GLenum func, GLclampf value)
+{
+    AlphaFunc af(func, value);
+    return getOrCreateImpl(af);
+}
+
+AlphaFunc::AlphaFunc(GLenum func, GLclampf value) :
+    GenericState2(func, value)
+{
+}
+
+void DepthTest::apply(QGraphicsContext *gc) const
+{
+    Q_UNUSED(gc);
+    glEnable(GL_DEPTH_TEST);
+    glDepthFunc( m_1 );
+}
+
+DepthTest *DepthTest::getOrCreate(GLenum func)
+{
+    DepthTest dt(func);
+    return getOrCreateImpl(dt);
+}
+
+DepthTest::DepthTest(GLenum func) :
+    GenericState1(func)
+{
+}
+
+void CullFace::apply(QGraphicsContext *gc) const
+{
+    Q_UNUSED(gc);
+    glEnable(GL_CULL_FACE);
+    glCullFace( m_1 );
+}
+
+CullFace *CullFace::getOrCreate(GLenum func)
+{
+    return getOrCreateImpl(CullFace(func));
+}
+
+CullFace::CullFace(GLenum func) :
+    GenericState1(func)
+{
+}
+
+void FrontFace::apply(QGraphicsContext *gc) const
+{
+    Q_UNUSED(gc);
+    glFrontFace(m_1);
+}
+
+FrontFace *FrontFace::getOrCreate(GLenum func)
+{
+    return getOrCreateImpl(FrontFace(func));
+}
+
+FrontFace::FrontFace(GLenum func) :
+    GenericState1(func)
+{
+}
+
+void DepthMask::apply(QGraphicsContext *gc) const
+{
+    Q_UNUSED(gc)
+    glDepthMask(m_1);
+}
+
+DepthMask *DepthMask::getOrCreate(GLboolean flag)
+{
+    return getOrCreateImpl(DepthMask(flag));
+}
+
+DepthMask::DepthMask(GLboolean flag) :
+    GenericState1(flag)
+{
+}
+
+
+} // of namespace