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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** 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 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 "graphicshelperes3_1_p.h"
#include <private/qgraphicsutils_p.h>
#include <QOpenGLExtraFunctions>
QT_BEGIN_NAMESPACE
// ES 3.1+
#ifndef GL_SAMPLER_2D_MULTISAMPLE
#define GL_SAMPLER_2D_MULTISAMPLE 0x9108
#endif
#ifndef GL_INT_SAMPLER_2D_MULTISAMPLE
#define GL_INT_SAMPLER_2D_MULTISAMPLE 0x9109
#endif
#ifndef GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE
#define GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE 0x910A
#endif
namespace Qt3DRender {
namespace Render {
GraphicsHelperES3_1::GraphicsHelperES3_1()
{
}
GraphicsHelperES3_1::~GraphicsHelperES3_1()
{
}
UniformType GraphicsHelperES3_1::uniformTypeFromGLType(GLenum glType)
{
switch (glType) {
case GL_SAMPLER_2D_MULTISAMPLE:
case GL_INT_SAMPLER_2D_MULTISAMPLE:
case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE:
return UniformType::Sampler;
default:
return GraphicsHelperES3::uniformTypeFromGLType(glType);
}
}
uint GraphicsHelperES3_1::uniformByteSize(const ShaderUniform &description)
{
uint rawByteSize = 0;
switch (description.m_type) {
case GL_SAMPLER_2D_MULTISAMPLE:
case GL_INT_SAMPLER_2D_MULTISAMPLE:
case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE:
rawByteSize = 4;
break;
default:
rawByteSize = GraphicsHelperES3::uniformByteSize(description);
break;
}
return rawByteSize;
}
void GraphicsHelperES3_1::buildUniformBuffer(const QVariant &v, const ShaderUniform &description, QByteArray &buffer)
{
char *bufferData = buffer.data();
switch (description.m_type) {
case GL_SAMPLER_2D_MULTISAMPLE:
case GL_INT_SAMPLER_2D_MULTISAMPLE:
case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE:
{
Q_ASSERT(description.m_size == 1);
int value = v.toInt();
QGraphicsUtils::fillDataArray<GLint>(bufferData, &value, description, 1);
break;
}
default:
GraphicsHelperES3::buildUniformBuffer(v, description, buffer);
break;
}
}
} // namespace Render
} // namespace Qt3DRender
QT_END_NAMESPACE
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