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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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "foundation/Qt3DSAllocator.h"
#include "foundation/Qt3DSFoundation.h"
#include "foundation/Qt3DSBroadcastingAllocator.h"
#include "foundation/Qt3DSAtomic.h"
#include "EASTL/vector.h"
#include "render/Qt3DSRenderContext.h"
#include "render/Qt3DSRenderImageTexture.h"
#include "render/Qt3DSRenderTexture2D.h"
#include "foundation/Qt3DSDataRef.h"
namespace qt3ds {
namespace render {
NVRenderImage2D::NVRenderImage2D(NVRenderContextImpl &context, NVFoundationBase &fnd,
NVRenderTexture2D *inTexture,
NVRenderImageAccessType::Enum inAccess)
: m_Context(context)
, m_Foundation(fnd)
, mRefCount(0)
, m_Backend(context.GetBackend())
, m_Texture2D(inTexture)
, m_TextureUnit(QT3DS_MAX_U32)
, m_AccessType(inAccess)
, m_TextureLevel(0)
{
inTexture->addRef();
}
NVRenderImage2D::~NVRenderImage2D()
{
m_Context.ImageDestroyed(*this);
m_Texture2D->release();
}
void NVRenderImage2D::SetTextureLevel(QT3DSI32 inLevel)
{
if (m_Texture2D && m_Texture2D->GetNumMipmaps() >= (QT3DSU32)inLevel) {
m_TextureLevel = inLevel;
}
}
void NVRenderImage2D::Bind(QT3DSU32 unit)
{
if (unit == -1)
m_TextureUnit = m_Context.GetNextTextureUnit();
else
m_TextureUnit = unit;
STextureDetails theDetails(m_Texture2D->GetTextureDetails());
// note it is the callers responsibility that the texture format is supported by the compute
// shader
m_Backend->BindImageTexture(m_Texture2D->GetTextureObjectHandle(), m_TextureUnit,
m_TextureLevel, false, 0, m_AccessType, theDetails.m_Format);
}
NVRenderBackend::NVRenderBackendTextureObject NVRenderImage2D::GetTextureObjectHandle()
{
return m_Texture2D->GetTextureObjectHandle();
}
NVRenderImage2D *NVRenderImage2D::Create(NVRenderContextImpl &context,
NVRenderTexture2D *inTexture,
NVRenderImageAccessType::Enum inAccess)
{
if (inTexture)
return QT3DS_NEW(context.GetFoundation().getAllocator(),
NVRenderImage2D)(context, context.GetFoundation(), inTexture, inAccess);
else
return NULL;
}
}
}
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