diff options
author | Sean Harmer <sean.harmer@kdab.com> | 2015-09-18 14:13:26 +0100 |
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committer | Paul Lemire <paul.lemire@kdab.com> | 2015-10-13 12:12:52 +0000 |
commit | 9847869acceedab58db4862ebeebb74016eaaf23 (patch) | |
tree | 87bfd89663e23335c61fac03501d666cb4812eac /src/render/renderstates/renderstateset_p.h | |
parent | b1810f91ee5eaa3ae9e79efde6b4a0335738c3e8 (diff) |
Move render state classes into own dir and tidy up
Change-Id: I0829c42283d6a25e9b3ec623f45739ea266718cf
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>
Diffstat (limited to 'src/render/renderstates/renderstateset_p.h')
-rw-r--r-- | src/render/renderstates/renderstateset_p.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/render/renderstates/renderstateset_p.h b/src/render/renderstates/renderstateset_p.h new file mode 100644 index 000000000..7a2f54000 --- /dev/null +++ b/src/render/renderstates/renderstateset_p.h @@ -0,0 +1,98 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB). +** Copyright (C) 2015 The Qt Company Ltd and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the Qt3D module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL3$ +** 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 http://www.qt.io/terms-conditions. For further +** information use the contact form at http://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.LGPLv3 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.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 later 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 2.0 requirements will be +** met: http://www.gnu.org/licenses/gpl-2.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QT3DRENDER_RENDER_RENDERSTATE_H +#define QT3DRENDER_RENDER_RENDERSTATE_H + +#include <Qt3DRenderer/private/genericstate_p.h> +#include <QVector> + +QT_BEGIN_NAMESPACE + +namespace Qt3DRender { + +class QRenderState; + +namespace Render { + +class GraphicsContext; +class RenderState; + +class RenderStateSet +{ +public: + RenderStateSet(); + ~RenderStateSet(); + + void addState(RenderState* ds); + + /** + * @brief changeCost - metric of cost to change to this state-set from + * a candidate previous state-set. This is used to find an optimal + * ordering of state-sets when sending draw commands. + * @param previousState + * @return + */ + int changeCost(RenderStateSet* previousState); + + void apply(GraphicsContext* gc); + + StateMaskSet stateMask() const; + void merge(RenderStateSet *other); + void resetMasked(StateMaskSet maskOfStatesToReset, GraphicsContext* gc); +private: + /** + * @brief contains - check if this set contains a matching piece of state + * @param ds + * @return + */ + bool contains(RenderState* ds) const; + + QVector<RenderState*> m_states; + + StateMaskSet m_stateMask; + + RenderStateSet* m_cachedPrevious; + QVector<RenderState*> m_cachedDeltaStates; +}; + +} // namespace Render +} // namespace Qt3DRender + +QT_END_NAMESPACE + +#endif // QT3DRENDER_RENDER_RENDERSTATE_H |