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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_QT3DS_RENDER_RENDER_BUFFER_H
#define QT3DS_RENDER_QT3DS_RENDER_RENDER_BUFFER_H
#include "foundation/Qt3DSRefCounted.h"
#include "foundation/Qt3DSAtomic.h"
#include "render/Qt3DSRenderBaseTypes.h"
#include "render/backends/Qt3DSRenderBackend.h"
namespace qt3ds {
namespace render {
class NVRenderContextImpl;
struct NVRenderRenderBufferDimensions
{
QT3DSU32 m_Width; ///< buffer width
QT3DSU32 m_Height; ///< buffer height
NVRenderRenderBufferDimensions(QT3DSU32 w, QT3DSU32 h)
: m_Width(w)
, m_Height(h)
{
}
NVRenderRenderBufferDimensions()
: m_Width(0)
, m_Height(0)
{
}
};
class NVRenderRenderBuffer : public NVRefCounted, public NVRenderImplemented
{
private:
NVRenderContextImpl &m_Context; ///< pointer to context
NVFoundationBase &m_Foundation; ///< pointer to foundation
volatile QT3DSI32 mRefCount; ///< Using foundations' naming convention to ease implementation
NVRenderBackend *m_Backend; ///< pointer to backend
QT3DSU32 m_Width; ///< buffer width
QT3DSU32 m_Height; ///< buffer height
NVRenderRenderBufferFormats::Enum m_StorageFormat; ///< buffer storage format
NVRenderBackend::NVRenderBackendRenderbufferObject
m_BufferHandle; ///< opaque backend handle
public:
/**
* @brief constructor
*
* @param[in] context Pointer to context
* @param[in] fnd Pointer to foundation
* @param[in] format Renderbuffer format
* @param[in] width Renderbuffer width
* @param[in] height Renderbuffer height
*
* @return No return.
*/
NVRenderRenderBuffer(NVRenderContextImpl &context, NVFoundationBase &fnd,
NVRenderRenderBufferFormats::Enum format, QT3DSU32 width, QT3DSU32 height);
/// destructor
virtual ~NVRenderRenderBuffer();
// define refcount functions
QT3DS_IMPLEMENT_REF_COUNT_ADDREF_RELEASE_OVERRIDE(m_Foundation)
/**
* @brief query buffer format
*
*
* @return buffer format
*/
virtual NVRenderRenderBufferFormats::Enum GetStorageFormat() const
{
return m_StorageFormat;
}
/**
* @brief query buffer dimension
*
*
* @return NVRenderRenderBufferDimensions object
*/
virtual NVRenderRenderBufferDimensions GetDimensions() const
{
return NVRenderRenderBufferDimensions(m_Width, m_Height);
}
/**
* @brief constructor
*
* @param[in] inDimensions A dimension object
*
* @return buffer format
*/
virtual void SetDimensions(const NVRenderRenderBufferDimensions &inDimensions);
/**
* @brief static creator function
*
* @param[in] context Pointer to context
* @param[in] format Renderbuffer format
* @param[in] width Renderbuffer width
* @param[in] height Renderbuffer height
*
* @return No return.
*/
static NVRenderRenderBuffer *Create(NVRenderContextImpl &context,
NVRenderRenderBufferFormats::Enum format, QT3DSU32 width,
QT3DSU32 height);
/**
* @brief get the backend object handle
*
* @return the backend object handle.
*/
virtual NVRenderBackend::NVRenderBackendRenderbufferObject GetRenderBuffertHandle()
{
return m_BufferHandle;
}
// this will be obsolete
const void *GetImplementationHandle() const override
{
return reinterpret_cast<void *>(m_BufferHandle);
}
};
}
}
#endif
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