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/****************************************************************************
**
** Copyright (C) 2008-2012 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL$
** 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 General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) 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.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-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#pragma once
#ifndef QT3DS_RENDER_BACKEND_RENDER_STATE_OBJECTS_GL_H
#define QT3DS_RENDER_BACKEND_RENDER_STATE_OBJECTS_GL_H
#include "foundation/Qt3DSFoundation.h"
#include "foundation/Utils.h"
#include "render/Qt3DSRenderBaseTypes.h"
namespace qt3ds {
namespace render {
///< this class handles the shader input variables
class NVRenderBackendDepthStencilStateGL
{
public:
///< constructor
NVRenderBackendDepthStencilStateGL(bool enableDepth, bool depthMask,
NVRenderBoolOp::Enum depthFunc, bool enableStencil,
NVRenderStencilFunctionArgument &stencilFuncFront,
NVRenderStencilFunctionArgument &stencilFuncBack,
NVRenderStencilOperationArgument &depthStencilOpFront,
NVRenderStencilOperationArgument &depthStencilOpBack)
: m_DepthEnable(enableDepth)
, m_DepthMask(depthMask)
, m_DepthFunc(depthFunc)
, m_StencilEnable(enableStencil)
, m_StencilFuncFront(stencilFuncFront)
, m_StencilFuncBack(stencilFuncBack)
, m_DepthStencilOpFront(depthStencilOpFront)
, m_DepthStencilOpBack(depthStencilOpBack)
{
}
///< constructor
NVRenderBackendDepthStencilStateGL()
: m_DepthEnable(true)
, m_DepthMask(true)
, m_DepthFunc(NVRenderBoolOp::LessThanOrEqual)
, m_StencilEnable(false)
{
}
///< destructor
~NVRenderBackendDepthStencilStateGL(){}
///< assignement
NVRenderBackendDepthStencilStateGL &operator=(const NVRenderBackendDepthStencilStateGL &rhs)
{
// Check for self-assignment!
if (this == &rhs)
return *this;
m_DepthEnable = rhs.m_DepthEnable;
m_DepthMask = rhs.m_DepthMask;
m_DepthFunc = rhs.m_DepthFunc;
m_StencilEnable = rhs.m_StencilEnable;
m_StencilFuncFront = rhs.m_StencilFuncFront;
m_StencilFuncBack = rhs.m_StencilFuncBack;
m_DepthStencilOpFront = rhs.m_DepthStencilOpFront;
m_DepthStencilOpBack = rhs.m_DepthStencilOpBack;
return *this;
}
bool operator==(const NVRenderBackendDepthStencilStateGL &other) const
{
return (m_DepthEnable == other.m_DepthEnable && m_DepthMask == other.m_DepthMask
&& m_DepthFunc == other.m_DepthFunc && m_StencilEnable == other.m_StencilEnable
&& m_StencilFuncFront == other.m_StencilFuncFront
&& m_StencilFuncBack == other.m_StencilFuncBack
&& m_DepthStencilOpFront == other.m_DepthStencilOpFront
&& m_DepthStencilOpBack == other.m_DepthStencilOpBack);
}
bool m_DepthEnable; ///< depth test enabled
bool m_DepthMask; ///< enable / disable depth writes
NVRenderBoolOp::Enum m_DepthFunc; ///< depth comparison func
bool m_StencilEnable; ///< enable disable stencil test
NVRenderStencilFunctionArgument m_StencilFuncFront; ///< stencil setup for front faces
NVRenderStencilFunctionArgument m_StencilFuncBack; ///< stencil setup for back faces
NVRenderStencilOperationArgument
m_DepthStencilOpFront; ///< depth stencil operation for front faces
NVRenderStencilOperationArgument
m_DepthStencilOpBack; ///< depth stencil operation for back faces
};
class NVRenderBackendMiscStateGL
{
public:
///< constructor
NVRenderBackendMiscStateGL()
: m_PatchVertexCount(1)
{
}
QT3DSU32 m_PatchVertexCount; ///< vertex count for a single patch primitive
};
class NVRenderBackendRasterizerStateGL
{
public:
///< constructor
NVRenderBackendRasterizerStateGL(QT3DSF32 depthBias, QT3DSF32 depthScale,
NVRenderFaces::Enum cullFace)
: m_DepthBias(depthBias)
, m_DepthScale(depthScale)
, m_CullFace(cullFace)
{
}
///< constructor
NVRenderBackendRasterizerStateGL()
: m_DepthBias(0.0)
, m_DepthScale(0.0)
, m_CullFace(NVRenderFaces::Back)
{
}
NVRenderBackendRasterizerStateGL &operator=(const NVRenderBackendRasterizerStateGL &rhs)
{
// Check for self-assignment!
if (this == &rhs)
return *this;
m_DepthBias = rhs.m_DepthBias;
m_DepthScale = rhs.m_DepthScale;
m_CullFace = rhs.m_CullFace;
return *this;
}
bool operator==(const NVRenderBackendRasterizerStateGL &other) const
{
return (m_DepthBias == other.m_DepthBias && m_DepthScale == other.m_DepthScale
&& m_CullFace == other.m_CullFace);
}
QT3DSF32 m_DepthBias; ///< depth bias
QT3DSF32 m_DepthScale; ///< mulitply constant
NVRenderFaces::Enum m_CullFace; ///< cull face front or back
};
}
}
#endif
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