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| ** |
| ** Copyright (C) 2008-2012 NVIDIA Corporation. |
| ** Copyright (C) 2019 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of Qt Quick 3D. |
| ** |
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| ****************************************************************************/ |
| |
| #include <QtQuick3DRender/private/qssgrenderindexbuffer_p.h> |
| #include <QtQuick3DRender/private/qssgrendercontext_p.h> |
| #include <QtQuick3DUtils/private/qssgutils_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| QSSGRenderIndexBuffer::QSSGRenderIndexBuffer(const QSSGRef<QSSGRenderContext> &context, |
| QSSGRenderBufferUsageType usageType, |
| QSSGRenderComponentType componentType, |
| QSSGByteView data) |
| : QSSGRenderDataBuffer(context, QSSGRenderBufferType::Index, usageType, data), |
| m_componentType(componentType) |
| { |
| } |
| |
| QSSGRenderIndexBuffer::~QSSGRenderIndexBuffer() |
| { |
| } |
| |
| quint32 QSSGRenderIndexBuffer::numIndices() const |
| { |
| quint32 dtypeSize = getSizeOfType(m_componentType); |
| return m_bufferCapacity / dtypeSize; |
| } |
| |
| void QSSGRenderIndexBuffer::draw(QSSGRenderDrawMode drawMode, quint32 count, quint32 offset) |
| { |
| m_backend->drawIndexed(drawMode, count, m_componentType, reinterpret_cast<const void *>(quintptr(offset * getSizeOfType(m_componentType)))); |
| } |
| |
| void QSSGRenderIndexBuffer::bind() |
| { |
| if (m_mapped) { |
| qCCritical(INVALID_OPERATION, "Attempting to Bind a locked buffer"); |
| Q_ASSERT(false); |
| } |
| |
| m_backend->bindBuffer(m_handle, m_type); |
| } |
| |
| QT_END_NAMESPACE |