1// Copyright (C) 2008-2012 NVIDIA Corporation.
2// Copyright (C) 2019 The Qt Company Ltd.
3// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
4
5#ifndef QSSG_RENDER_MESH_H
6#define QSSG_RENDER_MESH_H
7
8//
9// W A R N I N G
10// -------------
11//
12// This file is not part of the Qt API. It exists purely as an
13// implementation detail. This header file may change from version to
14// version without notice, or even be removed.
15//
16// We mean it.
17//
18
19#include <QtQuick3DRuntimeRender/private/qssgrhicontext_p.h>
20
21#include <QtQuick3DUtils/private/qssgbounds3_p.h>
22#include <QtQuick3DUtils/private/qssgmeshbvh_p.h>
23
24QT_BEGIN_NAMESPACE
25
26struct QSSGRenderSubset
27{
28 quint32 count;
29 quint32 offset;
30 QSSGBounds3 bounds; // Vertex buffer bounds
31 QSSGMeshBVHNode::Handle bvhRoot;
32 struct {
33 QSSGRhiBufferPtr vertexBuffer;
34 QSSGRhiBufferPtr indexBuffer;
35 QSSGRhiInputAssemblerState ia;
36 QRhiTexture *targetsTexture = nullptr;
37 } rhi;
38
39 struct Lod {
40 quint32 count = 0;
41 quint32 offset = 0;
42 float distance = 0.0f;
43 };
44 QVector<Lod> lods;
45
46 QSSGRenderSubset() = default;
47 QSSGRenderSubset(const QSSGRenderSubset &inOther)
48 : count(inOther.count)
49 , offset(inOther.offset)
50 , bounds(inOther.bounds)
51 , bvhRoot(inOther.bvhRoot)
52 , rhi(inOther.rhi)
53 , lods(inOther.lods)
54 {
55 }
56 QSSGRenderSubset &operator=(const QSSGRenderSubset &inOther)
57 {
58 if (this != &inOther) {
59 count = inOther.count;
60 offset = inOther.offset;
61 bounds = inOther.bounds;
62 bvhRoot = inOther.bvhRoot;
63 rhi = inOther.rhi;
64 lods = inOther.lods;
65 }
66 return *this;
67 }
68
69 quint32 lodCount(int lodLevel) const {
70 if (lodLevel == 0 || lods.isEmpty())
71 return count;
72 if (lodLevel > lods.count())
73 lodLevel = lods.count() - 1;
74 else
75 lodLevel -= 1;
76
77 return lods[lodLevel].count;
78 }
79
80 quint32 lodOffset(int lodLevel) const {
81 if (lodLevel == 0 || lods.isEmpty())
82 return offset;
83 if (lodLevel > lods.count())
84 lodLevel = lods.count() - 1;
85 else
86 lodLevel -= 1;
87
88 return lods[lodLevel].offset;
89 }
90
91};
92
93struct QSSGRenderMesh
94{
95 Q_DISABLE_COPY(QSSGRenderMesh)
96
97 QVector<QSSGRenderSubset> subsets;
98 QSSGRenderDrawMode drawMode;
99 QSSGRenderWinding winding;
100 std::unique_ptr<QSSGMeshBVH> bvh;
101 QSize lightmapSizeHint;
102
103 QSSGRenderMesh(QSSGRenderDrawMode inDrawMode, QSSGRenderWinding inWinding)
104 : drawMode(inDrawMode), winding(inWinding)
105 {
106 }
107};
108QT_END_NAMESPACE
109
110#endif
111

source code of qtquick3d/src/runtimerender/qssgrendermesh_p.h