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diff --git a/src/render/Qt3DSRenderIndexBuffer.cpp b/src/render/Qt3DSRenderIndexBuffer.cpp
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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 "render/Qt3DSRenderIndexBuffer.h"
+#include "render/Qt3DSRenderContext.h"
+#include "foundation/StringTable.h"
+
+namespace qt3ds {
+namespace render {
+
+ NVRenderIndexBuffer::NVRenderIndexBuffer(NVRenderContextImpl &context, size_t size,
+ NVRenderComponentTypes::Enum componentType,
+ NVRenderBufferUsageType::Enum usageType,
+ NVDataRef<QT3DSU8> data)
+ : NVRenderDataBuffer(context, context.GetFoundation(), size,
+ NVRenderBufferBindValues::Index, usageType, data)
+ , m_ComponentType(componentType)
+ {
+ }
+
+ NVRenderIndexBuffer::~NVRenderIndexBuffer() { m_Context.BufferDestroyed(*this); }
+
+ QT3DSU32 NVRenderIndexBuffer::GetNumIndices() const
+ {
+ QT3DSU32 dtypeSize = NVRenderComponentTypes::getSizeofType(m_ComponentType);
+ return m_BufferCapacity / dtypeSize;
+ }
+
+ void NVRenderIndexBuffer::Draw(NVRenderDrawMode::Enum drawMode, QT3DSU32 count, QT3DSU32 offset)
+ {
+ m_Backend->DrawIndexed(
+ drawMode, count, m_ComponentType,
+ (const void *)(offset * NVRenderComponentTypes::getSizeofType(m_ComponentType)));
+ }
+
+ void NVRenderIndexBuffer::DrawIndirect(NVRenderDrawMode::Enum drawMode, QT3DSU32 offset)
+ {
+ m_Backend->DrawIndexedIndirect(drawMode, m_ComponentType, (const void *)offset);
+ }
+
+ void NVRenderIndexBuffer::Bind()
+ {
+ if (m_Mapped) {
+ qCCritical(INVALID_OPERATION, "Attempting to Bind a locked buffer");
+ QT3DS_ASSERT(false);
+ }
+
+ m_Backend->BindBuffer(m_BufferHandle, m_BindFlags);
+ }
+
+ NVRenderIndexBuffer *NVRenderIndexBuffer::Create(NVRenderContextImpl &context,
+ NVRenderBufferUsageType::Enum usageType,
+ NVRenderComponentTypes::Enum componentType,
+ size_t size, NVConstDataRef<QT3DSU8> bufferData)
+ {
+ NVFoundationBase &fnd(context.GetFoundation());
+ if (componentType != NVRenderComponentTypes::QT3DSU32
+ && componentType != NVRenderComponentTypes::QT3DSU16
+ && componentType != NVRenderComponentTypes::QT3DSU8) {
+ qCCritical(INVALID_PARAMETER, "Invalid component type for index buffer");
+ QT3DS_ASSERT(false);
+ return NULL;
+ }
+
+ QT3DSU32 ibufSize = sizeof(NVRenderIndexBuffer);
+ QT3DSU8 *baseMem = (QT3DSU8 *)QT3DS_ALLOC(fnd.getAllocator(), ibufSize, "IndexBuffer");
+ NVRenderIndexBuffer *retval = new (baseMem) NVRenderIndexBuffer(
+ context, size, componentType, usageType,
+ toDataRef(const_cast<QT3DSU8 *>(bufferData.begin()), bufferData.size()));
+ return retval;
+ }
+}
+}