minetest/irr/include/SSkinMeshBuffer.h
2024-03-26 21:39:02 +01:00

399 lines
9.8 KiB
C++

// Copyright (C) 2002-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#pragma once
#include "IMeshBuffer.h"
#include "S3DVertex.h"
namespace irr
{
namespace scene
{
//! A mesh buffer able to choose between S3DVertex2TCoords, S3DVertex and S3DVertexTangents at runtime
struct SSkinMeshBuffer : public IMeshBuffer
{
//! Default constructor
SSkinMeshBuffer(video::E_VERTEX_TYPE vt = video::EVT_STANDARD) :
ChangedID_Vertex(1), ChangedID_Index(1), VertexType(vt),
PrimitiveType(EPT_TRIANGLES),
MappingHint_Vertex(EHM_NEVER), MappingHint_Index(EHM_NEVER),
HWBuffer(NULL),
BoundingBoxNeedsRecalculated(true)
{
#ifdef _DEBUG
setDebugName("SSkinMeshBuffer");
#endif
}
//! Get Material of this buffer.
const video::SMaterial &getMaterial() const override
{
return Material;
}
//! Get Material of this buffer.
video::SMaterial &getMaterial() override
{
return Material;
}
//! Get standard vertex at given index
virtual video::S3DVertex *getVertex(u32 index)
{
switch (VertexType) {
case video::EVT_2TCOORDS:
return (video::S3DVertex *)&Vertices_2TCoords[index];
case video::EVT_TANGENTS:
return (video::S3DVertex *)&Vertices_Tangents[index];
default:
return &Vertices_Standard[index];
}
}
//! Get pointer to vertex array
const void *getVertices() const override
{
switch (VertexType) {
case video::EVT_2TCOORDS:
return Vertices_2TCoords.const_pointer();
case video::EVT_TANGENTS:
return Vertices_Tangents.const_pointer();
default:
return Vertices_Standard.const_pointer();
}
}
//! Get pointer to vertex array
void *getVertices() override
{
switch (VertexType) {
case video::EVT_2TCOORDS:
return Vertices_2TCoords.pointer();
case video::EVT_TANGENTS:
return Vertices_Tangents.pointer();
default:
return Vertices_Standard.pointer();
}
}
//! Get vertex count
u32 getVertexCount() const override
{
switch (VertexType) {
case video::EVT_2TCOORDS:
return Vertices_2TCoords.size();
case video::EVT_TANGENTS:
return Vertices_Tangents.size();
default:
return Vertices_Standard.size();
}
}
//! Get type of index data which is stored in this meshbuffer.
/** \return Index type of this buffer. */
video::E_INDEX_TYPE getIndexType() const override
{
return video::EIT_16BIT;
}
//! Get pointer to index array
const u16 *getIndices() const override
{
return Indices.const_pointer();
}
//! Get pointer to index array
u16 *getIndices() override
{
return Indices.pointer();
}
//! Get index count
u32 getIndexCount() const override
{
return Indices.size();
}
//! Get bounding box
const core::aabbox3d<f32> &getBoundingBox() const override
{
return BoundingBox;
}
//! Set bounding box
void setBoundingBox(const core::aabbox3df &box) override
{
BoundingBox = box;
}
//! Recalculate bounding box
void recalculateBoundingBox() override
{
if (!BoundingBoxNeedsRecalculated)
return;
BoundingBoxNeedsRecalculated = false;
switch (VertexType) {
case video::EVT_STANDARD: {
if (Vertices_Standard.empty())
BoundingBox.reset(0, 0, 0);
else {
BoundingBox.reset(Vertices_Standard[0].Pos);
for (u32 i = 1; i < Vertices_Standard.size(); ++i)
BoundingBox.addInternalPoint(Vertices_Standard[i].Pos);
}
break;
}
case video::EVT_2TCOORDS: {
if (Vertices_2TCoords.empty())
BoundingBox.reset(0, 0, 0);
else {
BoundingBox.reset(Vertices_2TCoords[0].Pos);
for (u32 i = 1; i < Vertices_2TCoords.size(); ++i)
BoundingBox.addInternalPoint(Vertices_2TCoords[i].Pos);
}
break;
}
case video::EVT_TANGENTS: {
if (Vertices_Tangents.empty())
BoundingBox.reset(0, 0, 0);
else {
BoundingBox.reset(Vertices_Tangents[0].Pos);
for (u32 i = 1; i < Vertices_Tangents.size(); ++i)
BoundingBox.addInternalPoint(Vertices_Tangents[i].Pos);
}
break;
}
}
}
//! Get vertex type
video::E_VERTEX_TYPE getVertexType() const override
{
return VertexType;
}
//! Convert to 2tcoords vertex type
void convertTo2TCoords()
{
if (VertexType == video::EVT_STANDARD) {
for (u32 n = 0; n < Vertices_Standard.size(); ++n) {
video::S3DVertex2TCoords Vertex;
Vertex.Color = Vertices_Standard[n].Color;
Vertex.Pos = Vertices_Standard[n].Pos;
Vertex.Normal = Vertices_Standard[n].Normal;
Vertex.TCoords = Vertices_Standard[n].TCoords;
Vertices_2TCoords.push_back(Vertex);
}
Vertices_Standard.clear();
VertexType = video::EVT_2TCOORDS;
}
}
//! Convert to tangents vertex type
void convertToTangents()
{
if (VertexType == video::EVT_STANDARD) {
for (u32 n = 0; n < Vertices_Standard.size(); ++n) {
video::S3DVertexTangents Vertex;
Vertex.Color = Vertices_Standard[n].Color;
Vertex.Pos = Vertices_Standard[n].Pos;
Vertex.Normal = Vertices_Standard[n].Normal;
Vertex.TCoords = Vertices_Standard[n].TCoords;
Vertices_Tangents.push_back(Vertex);
}
Vertices_Standard.clear();
VertexType = video::EVT_TANGENTS;
} else if (VertexType == video::EVT_2TCOORDS) {
for (u32 n = 0; n < Vertices_2TCoords.size(); ++n) {
video::S3DVertexTangents Vertex;
Vertex.Color = Vertices_2TCoords[n].Color;
Vertex.Pos = Vertices_2TCoords[n].Pos;
Vertex.Normal = Vertices_2TCoords[n].Normal;
Vertex.TCoords = Vertices_2TCoords[n].TCoords;
Vertices_Tangents.push_back(Vertex);
}
Vertices_2TCoords.clear();
VertexType = video::EVT_TANGENTS;
}
}
//! returns position of vertex i
const core::vector3df &getPosition(u32 i) const override
{
switch (VertexType) {
case video::EVT_2TCOORDS:
return Vertices_2TCoords[i].Pos;
case video::EVT_TANGENTS:
return Vertices_Tangents[i].Pos;
default:
return Vertices_Standard[i].Pos;
}
}
//! returns position of vertex i
core::vector3df &getPosition(u32 i) override
{
switch (VertexType) {
case video::EVT_2TCOORDS:
return Vertices_2TCoords[i].Pos;
case video::EVT_TANGENTS:
return Vertices_Tangents[i].Pos;
default:
return Vertices_Standard[i].Pos;
}
}
//! returns normal of vertex i
const core::vector3df &getNormal(u32 i) const override
{
switch (VertexType) {
case video::EVT_2TCOORDS:
return Vertices_2TCoords[i].Normal;
case video::EVT_TANGENTS:
return Vertices_Tangents[i].Normal;
default:
return Vertices_Standard[i].Normal;
}
}
//! returns normal of vertex i
core::vector3df &getNormal(u32 i) override
{
switch (VertexType) {
case video::EVT_2TCOORDS:
return Vertices_2TCoords[i].Normal;
case video::EVT_TANGENTS:
return Vertices_Tangents[i].Normal;
default:
return Vertices_Standard[i].Normal;
}
}
//! returns texture coords of vertex i
const core::vector2df &getTCoords(u32 i) const override
{
switch (VertexType) {
case video::EVT_2TCOORDS:
return Vertices_2TCoords[i].TCoords;
case video::EVT_TANGENTS:
return Vertices_Tangents[i].TCoords;
default:
return Vertices_Standard[i].TCoords;
}
}
//! returns texture coords of vertex i
core::vector2df &getTCoords(u32 i) override
{
switch (VertexType) {
case video::EVT_2TCOORDS:
return Vertices_2TCoords[i].TCoords;
case video::EVT_TANGENTS:
return Vertices_Tangents[i].TCoords;
default:
return Vertices_Standard[i].TCoords;
}
}
//! append the vertices and indices to the current buffer
void append(const void *const vertices, u32 numVertices, const u16 *const indices, u32 numIndices) override {}
//! get the current hardware mapping hint for vertex buffers
E_HARDWARE_MAPPING getHardwareMappingHint_Vertex() const override
{
return MappingHint_Vertex;
}
//! get the current hardware mapping hint for index buffers
E_HARDWARE_MAPPING getHardwareMappingHint_Index() const override
{
return MappingHint_Index;
}
//! set the hardware mapping hint, for driver
void setHardwareMappingHint(E_HARDWARE_MAPPING NewMappingHint, E_BUFFER_TYPE Buffer = EBT_VERTEX_AND_INDEX) override
{
if (Buffer == EBT_VERTEX)
MappingHint_Vertex = NewMappingHint;
else if (Buffer == EBT_INDEX)
MappingHint_Index = NewMappingHint;
else if (Buffer == EBT_VERTEX_AND_INDEX) {
MappingHint_Vertex = NewMappingHint;
MappingHint_Index = NewMappingHint;
}
}
//! Describe what kind of primitive geometry is used by the meshbuffer
void setPrimitiveType(E_PRIMITIVE_TYPE type) override
{
PrimitiveType = type;
}
//! Get the kind of primitive geometry which is used by the meshbuffer
E_PRIMITIVE_TYPE getPrimitiveType() const override
{
return PrimitiveType;
}
//! flags the mesh as changed, reloads hardware buffers
void setDirty(E_BUFFER_TYPE Buffer = EBT_VERTEX_AND_INDEX) override
{
if (Buffer == EBT_VERTEX_AND_INDEX || Buffer == EBT_VERTEX)
++ChangedID_Vertex;
if (Buffer == EBT_VERTEX_AND_INDEX || Buffer == EBT_INDEX)
++ChangedID_Index;
}
u32 getChangedID_Vertex() const override { return ChangedID_Vertex; }
u32 getChangedID_Index() const override { return ChangedID_Index; }
void setHWBuffer(void *ptr) const override
{
HWBuffer = ptr;
}
void *getHWBuffer() const override
{
return HWBuffer;
}
//! Call this after changing the positions of any vertex.
void boundingBoxNeedsRecalculated(void) { BoundingBoxNeedsRecalculated = true; }
core::array<video::S3DVertexTangents> Vertices_Tangents;
core::array<video::S3DVertex2TCoords> Vertices_2TCoords;
core::array<video::S3DVertex> Vertices_Standard;
core::array<u16> Indices;
u32 ChangedID_Vertex;
u32 ChangedID_Index;
// ISkinnedMesh::SJoint *AttachedJoint;
core::matrix4 Transformation;
video::SMaterial Material;
video::E_VERTEX_TYPE VertexType;
core::aabbox3d<f32> BoundingBox;
//! Primitive type used for rendering (triangles, lines, ...)
E_PRIMITIVE_TYPE PrimitiveType;
// hardware mapping hint
E_HARDWARE_MAPPING MappingHint_Vertex : 3;
E_HARDWARE_MAPPING MappingHint_Index : 3;
mutable void *HWBuffer;
bool BoundingBoxNeedsRecalculated : 1;
};
} // end namespace scene
} // end namespace irr