| 1 | // Copyright (C) 2023 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
| 3 | |
| 4 | #include "surfaceselectioninstancing_p.h" |
| 5 | |
| 6 | SurfaceSelectionInstancing::SurfaceSelectionInstancing() |
| 7 | { |
| 8 | } |
| 9 | |
| 10 | SurfaceSelectionInstancing::~SurfaceSelectionInstancing() |
| 11 | { |
| 12 | } |
| 13 | |
| 14 | void SurfaceSelectionInstancing::addPosition(const QVector3D &position) |
| 15 | { |
| 16 | m_positions.append(t: position); |
| 17 | markDirty(); |
| 18 | m_dirty = true; |
| 19 | } |
| 20 | |
| 21 | void SurfaceSelectionInstancing::resetPositions() |
| 22 | { |
| 23 | m_positions.clear(); |
| 24 | markDirty(); |
| 25 | m_dirty = true; |
| 26 | } |
| 27 | |
| 28 | QByteArray SurfaceSelectionInstancing::getInstanceBuffer(int *instanceCount) |
| 29 | { |
| 30 | if (m_dirty) { |
| 31 | m_instanceData.resize(size: 0); |
| 32 | int instanceNumber = 0; |
| 33 | |
| 34 | for (auto position : m_positions) { |
| 35 | auto entry = calculateTableEntry(position, scale: m_scale, eulerRotation: m_rotation, color: m_color); |
| 36 | m_instanceData.append(s: reinterpret_cast<const char*>(&entry), len: sizeof(entry)); |
| 37 | instanceNumber++; |
| 38 | } |
| 39 | m_instanceCount = instanceNumber; |
| 40 | m_dirty = false; |
| 41 | } |
| 42 | |
| 43 | if (instanceCount) |
| 44 | *instanceCount = m_instanceCount; |
| 45 | |
| 46 | return m_instanceData; |
| 47 | } |
| 48 |