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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_PROGRAM_PIPLINE_H
#define QT3DS_RENDER_PROGRAM_PIPLINE_H
#include "foundation/Qt3DSFoundation.h"
#include "foundation/Qt3DSBroadcastingAllocator.h"
#include "foundation/Qt3DSAtomic.h"
#include "render/Qt3DSRenderContext.h"
#include "render/backends/Qt3DSRenderBackend.h"
#include <EASTL/string.h>
namespace qt3ds {
namespace render {
using namespace foundation;
class NVRenderContextImpl;
class NVRenderShaderProgram;
///< A program pipeline is a collection of a multiple programs (vertex, fragment, geometry,....)
class QT3DS_AUTOTEST_EXPORT NVRenderProgramPipeline : public NVRefCounted
{
protected:
NVRenderContextImpl &m_Context; ///< pointer to context
NVFoundationBase &m_Foundation; ///< pointer to foundation
NVRenderBackend *m_Backend; ///< pointer to backend
volatile QT3DSI32 mRefCount; ///< Using foundations' naming convention to ease implementation
public:
/**
* @brief constructor
*
* @param[in] context Pointer to render context
* @param[in] fnd Pointer to foundation
*
* @return No return.
*/
NVRenderProgramPipeline(NVRenderContextImpl &context, NVFoundationBase &fnd);
/// @brief destructor
~NVRenderProgramPipeline();
// define refcount functions
QT3DS_IMPLEMENT_REF_COUNT_ADDREF_RELEASE(m_Foundation)
/**
* @brief Query if pipeline is valid
*
* @return True if valid.
*/
bool IsValid();
/**
* @brief enable / disable a program stage in the pipeline
*
* @param[in] pProgram Pointer to program. If NULL stage will be disabled
* @param[in] flags Flags to which stage this program is bound to. Can more than
* one stage
*
* @return no return.
*/
void SetProgramStages(NVRenderShaderProgram *pProgram, NVRenderShaderTypeFlags flags);
/**
* @brief Make the program pipeline active
*
* @return True if valid.
*/
void Bind();
/**
* @brief get the backend object handle
*
* @return the backend object handle.
*/
NVRenderBackend::NVRenderBackendProgramPipeline GetShaderHandle()
{
return m_ProgramPipelineHandle;
}
/**
* @brief get the vertex stage program
*
* @return the backend object handle.
*/
NVRenderShaderProgram *GetVertexStage() { return m_VertexProgram; }
private:
NVRenderBackend::NVRenderBackendProgramPipeline
m_ProgramPipelineHandle; ///< opaque backend handle
NVRenderShaderProgram
*m_Program; ///< for non separable programs this contains the entire program
NVRenderShaderProgram
*m_VertexProgram; ///< for separable programs this contains the vertex program
NVRenderShaderProgram
*m_FragmentProgram; ///< for separable programs this contains the fragment program
NVRenderShaderProgram *m_TessControlProgram; ///< for separable programs this contains the
///tessellation control program
NVRenderShaderProgram *m_TessEvalProgram; ///< for separable programs this contains the
///tessellation evaluation program
NVRenderShaderProgram
*m_GeometryProgram; ///< for separable programs this contains the geometry program
NVRenderShaderProgram
*m_ComputProgram; ///< for separable programs this contains the compute program
};
}
}
#endif
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