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Diffstat (limited to 'src/render/Qt3DSRenderIndexBuffer.cpp')
-rw-r--r-- | src/render/Qt3DSRenderIndexBuffer.cpp | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/render/Qt3DSRenderIndexBuffer.cpp b/src/render/Qt3DSRenderIndexBuffer.cpp new file mode 100644 index 0000000..37f56bd --- /dev/null +++ b/src/render/Qt3DSRenderIndexBuffer.cpp @@ -0,0 +1,100 @@ +/**************************************************************************** +** +** 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; + } +} +} |