mirror of
https://github.com/minetest/irrlicht.git
synced 2024-12-25 23:47:30 +01:00
7d2dbdd0c8
Lots of places where coders did not realize our Printer::log with hint adds a ": " string between message and hint Which caused uglier messages in a few places (added documentation for that, maybe helps?) Some added info in a few places Some whitespace unification Some spelling unification git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6414 dfc29bdd-3216-0410-991c-e03cc46cb475
557 lines
13 KiB
C++
557 lines
13 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
|
|
|
|
#include "IrrCompileConfig.h"
|
|
#ifdef _IRR_COMPILE_WITH_IRR_MESH_LOADER_
|
|
|
|
#include "CIrrMeshFileLoader.h"
|
|
#include "os.h"
|
|
#include "IXMLReader.h"
|
|
#include "SAnimatedMesh.h"
|
|
#include "fast_atof.h"
|
|
#include "IReadFile.h"
|
|
#include "IAttributes.h"
|
|
#include "IMeshSceneNode.h"
|
|
#include "CDynamicMeshBuffer.h"
|
|
#include "SMeshBufferLightMap.h"
|
|
|
|
namespace irr
|
|
{
|
|
namespace scene
|
|
{
|
|
|
|
|
|
//! Constructor
|
|
CIrrMeshFileLoader::CIrrMeshFileLoader(scene::ISceneManager* smgr,
|
|
io::IFileSystem* fs)
|
|
: SceneManager(smgr), FileSystem(fs)
|
|
{
|
|
|
|
#ifdef _DEBUG
|
|
setDebugName("CIrrMeshFileLoader");
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
//! Returns true if the file maybe is able to be loaded by this class.
|
|
/** This decision should be based only on the file extension (e.g. ".cob") */
|
|
bool CIrrMeshFileLoader::isALoadableFileExtension(const io::path& filename) const
|
|
{
|
|
return core::hasFileExtension ( filename, "xml", "irrmesh" );
|
|
}
|
|
|
|
|
|
//! creates/loads an animated mesh from the file.
|
|
//! \return Pointer to the created mesh. Returns 0 if loading failed.
|
|
//! If you no longer need the mesh, you should call IAnimatedMesh::drop().
|
|
//! See IReferenceCounted::drop() for more information.
|
|
IAnimatedMesh* CIrrMeshFileLoader::createMesh(io::IReadFile* file)
|
|
{
|
|
io::IXMLReader* reader = FileSystem->createXMLReader(file);
|
|
if (!reader)
|
|
return 0;
|
|
|
|
// read until mesh section, skip other parts
|
|
|
|
const core::stringc meshTagName = "mesh";
|
|
IAnimatedMesh* mesh = 0;
|
|
|
|
while(reader->read())
|
|
{
|
|
if (reader->getNodeType() == io::EXN_ELEMENT)
|
|
{
|
|
if (meshTagName == reader->getNodeName())
|
|
{
|
|
mesh = readMesh(reader);
|
|
break;
|
|
}
|
|
else
|
|
skipSection(reader, true); // unknown section
|
|
}
|
|
}
|
|
|
|
reader->drop();
|
|
|
|
return mesh;
|
|
}
|
|
|
|
|
|
//! reads a mesh sections and creates a mesh from it
|
|
IAnimatedMesh* CIrrMeshFileLoader::readMesh(io::IXMLReader* reader)
|
|
{
|
|
SAnimatedMesh* animatedmesh = new SAnimatedMesh();
|
|
SMesh* mesh = new SMesh();
|
|
|
|
animatedmesh->addMesh(mesh);
|
|
mesh->drop();
|
|
|
|
core::stringc bbSectionName = "boundingBox";
|
|
core::stringc bufferSectionName = "buffer";
|
|
core::stringc meshSectionName = "mesh";
|
|
|
|
if (!reader->isEmptyElement())
|
|
while(reader->read())
|
|
{
|
|
if (reader->getNodeType() == io::EXN_ELEMENT)
|
|
{
|
|
const wchar_t* nodeName = reader->getNodeName();
|
|
if (bbSectionName == nodeName)
|
|
{
|
|
// inside a bounding box, ignore it for now because
|
|
// we are calculating this anyway ourselves later.
|
|
}
|
|
else
|
|
if (bufferSectionName == nodeName)
|
|
{
|
|
// we've got a mesh buffer
|
|
|
|
IMeshBuffer* buffer = readMeshBuffer(reader);
|
|
if (buffer)
|
|
{
|
|
mesh->addMeshBuffer(buffer);
|
|
buffer->drop();
|
|
}
|
|
}
|
|
else
|
|
skipSection(reader, true); // unknown section
|
|
|
|
} // end if node type is element
|
|
else
|
|
if (reader->getNodeType() == io::EXN_ELEMENT_END)
|
|
{
|
|
if (meshSectionName == reader->getNodeName())
|
|
{
|
|
// end of mesh section reached, cancel out
|
|
break;
|
|
}
|
|
}
|
|
} // end while reader->read();
|
|
|
|
mesh->recalculateBoundingBox();
|
|
animatedmesh->recalculateBoundingBox();
|
|
|
|
return animatedmesh;
|
|
}
|
|
|
|
|
|
//! reads a mesh sections and creates a mesh buffer from it
|
|
IMeshBuffer* CIrrMeshFileLoader::readMeshBuffer(io::IXMLReader* reader)
|
|
{
|
|
CDynamicMeshBuffer* buffer = 0;
|
|
|
|
core::stringc verticesSectionName = "vertices";
|
|
core::stringc bbSectionName = "boundingBox";
|
|
core::stringc materialSectionName = "material";
|
|
core::stringc indicesSectionName = "indices";
|
|
core::stringc bufferSectionName = "buffer";
|
|
|
|
bool insideVertexSection = false;
|
|
bool insideIndexSection = false;
|
|
|
|
int vertexCount = 0;
|
|
int indexCount = 0;
|
|
|
|
video::SMaterial material;
|
|
|
|
if (!reader->isEmptyElement())
|
|
while(reader->read())
|
|
{
|
|
if (reader->getNodeType() == io::EXN_ELEMENT)
|
|
{
|
|
const wchar_t* nodeName = reader->getNodeName();
|
|
if (bbSectionName == nodeName)
|
|
{
|
|
// inside a bounding box, ignore it for now because
|
|
// we are calculating this anyway ourselves later.
|
|
}
|
|
else
|
|
if (materialSectionName == nodeName)
|
|
{
|
|
//we've got a material
|
|
|
|
material = video::SMaterial(); // reset
|
|
|
|
io::IAttributes* attributes = FileSystem->createEmptyAttributes(SceneManager->getVideoDriver());
|
|
attributes->read(reader, true, L"material");
|
|
|
|
SceneManager->getVideoDriver()->fillMaterialStructureFromAttributes(material, attributes);
|
|
attributes->drop();
|
|
}
|
|
else
|
|
if (verticesSectionName == nodeName)
|
|
{
|
|
// vertices section
|
|
|
|
const core::stringc vertexTypeName1 = "standard";
|
|
const core::stringc vertexTypeName2 = "2tcoords";
|
|
const core::stringc vertexTypeName3 = "tangents";
|
|
|
|
const wchar_t* vertexType = reader->getAttributeValue(L"type");
|
|
vertexCount = reader->getAttributeValueAsInt(L"vertexCount");
|
|
|
|
insideVertexSection = true;
|
|
|
|
video::E_INDEX_TYPE itype = (vertexCount > 65536)?irr::video::EIT_32BIT:irr::video::EIT_16BIT;
|
|
if (vertexTypeName1 == vertexType)
|
|
{
|
|
buffer = new CDynamicMeshBuffer(irr::video::EVT_STANDARD, itype);
|
|
|
|
}
|
|
else
|
|
if (vertexTypeName2 == vertexType)
|
|
{
|
|
buffer = new CDynamicMeshBuffer(irr::video::EVT_2TCOORDS, itype);
|
|
}
|
|
else
|
|
if (vertexTypeName3 == vertexType)
|
|
{
|
|
buffer = new CDynamicMeshBuffer(irr::video::EVT_TANGENTS, itype);
|
|
}
|
|
buffer->getVertexBuffer().reallocate(vertexCount);
|
|
buffer->Material = material;
|
|
}
|
|
else
|
|
if (indicesSectionName == nodeName)
|
|
{
|
|
// indices section
|
|
|
|
indexCount = reader->getAttributeValueAsInt(L"indexCount");
|
|
insideIndexSection = true;
|
|
}
|
|
|
|
} // end if node type is element
|
|
else
|
|
if (reader->getNodeType() == io::EXN_TEXT)
|
|
{
|
|
// read vertex data
|
|
if (insideVertexSection)
|
|
{
|
|
readMeshBuffer(reader, vertexCount, buffer);
|
|
insideVertexSection = false;
|
|
|
|
} // end reading vertex array
|
|
else
|
|
if (insideIndexSection)
|
|
{
|
|
readIndices(reader, indexCount, buffer->getIndexBuffer());
|
|
insideIndexSection = false;
|
|
}
|
|
|
|
} // end if node type is text
|
|
else
|
|
if (reader->getNodeType() == io::EXN_ELEMENT_END)
|
|
{
|
|
if (bufferSectionName == reader->getNodeName())
|
|
{
|
|
// end of buffer section reached, cancel out
|
|
break;
|
|
}
|
|
}
|
|
} // end while reader->read();
|
|
|
|
if (buffer)
|
|
buffer->recalculateBoundingBox();
|
|
|
|
return buffer;
|
|
}
|
|
|
|
|
|
//! read indices
|
|
void CIrrMeshFileLoader::readIndices(io::IXMLReader* reader, int indexCount, IIndexBuffer& indices)
|
|
{
|
|
indices.reallocate(indexCount);
|
|
|
|
core::stringc data = reader->getNodeData();
|
|
const c8* p = &data[0];
|
|
|
|
for (int i=0; i<indexCount && *p; ++i)
|
|
{
|
|
findNextNoneWhiteSpace(&p);
|
|
indices.push_back(readInt(&p));
|
|
}
|
|
}
|
|
|
|
|
|
void CIrrMeshFileLoader::readMeshBuffer(io::IXMLReader* reader, int vertexCount, CDynamicMeshBuffer* sbuffer)
|
|
{
|
|
if (sbuffer)
|
|
{
|
|
core::stringc data = reader->getNodeData();
|
|
const c8* p = &data[0];
|
|
scene::IVertexBuffer& Vertices = sbuffer->getVertexBuffer();
|
|
video::E_VERTEX_TYPE vType = Vertices.getType();
|
|
|
|
for (int i=0; i<vertexCount && *p; ++i)
|
|
{
|
|
switch(vType)
|
|
{
|
|
case video::EVT_STANDARD:
|
|
{
|
|
video::S3DVertex vtx;
|
|
// position
|
|
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Pos.X = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Pos.Y = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Pos.Z = readFloat(&p);
|
|
|
|
// normal
|
|
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Normal.X = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Normal.Y = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Normal.Z = readFloat(&p);
|
|
|
|
// color
|
|
|
|
u32 col;
|
|
findNextNoneWhiteSpace(&p);
|
|
sscanf(p, "%08x", &col);
|
|
vtx.Color.set(col);
|
|
skipCurrentNoneWhiteSpace(&p);
|
|
|
|
// tcoord1
|
|
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.TCoords.X = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.TCoords.Y = readFloat(&p);
|
|
|
|
Vertices.push_back(vtx);
|
|
}
|
|
break;
|
|
case video::EVT_2TCOORDS:
|
|
{
|
|
video::S3DVertex2TCoords vtx;
|
|
// position
|
|
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Pos.X = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Pos.Y = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Pos.Z = readFloat(&p);
|
|
|
|
// normal
|
|
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Normal.X = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Normal.Y = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Normal.Z = readFloat(&p);
|
|
|
|
// color
|
|
|
|
u32 col;
|
|
findNextNoneWhiteSpace(&p);
|
|
sscanf(p, "%08x", &col);
|
|
vtx.Color.set(col);
|
|
skipCurrentNoneWhiteSpace(&p);
|
|
|
|
// tcoord1
|
|
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.TCoords.X = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.TCoords.Y = readFloat(&p);
|
|
|
|
// tcoord2
|
|
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.TCoords2.X = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.TCoords2.Y = readFloat(&p);
|
|
|
|
Vertices.push_back(vtx);
|
|
}
|
|
break;
|
|
|
|
case video::EVT_TANGENTS:
|
|
{
|
|
video::S3DVertexTangents vtx;
|
|
// position
|
|
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Pos.X = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Pos.Y = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Pos.Z = readFloat(&p);
|
|
|
|
// normal
|
|
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Normal.X = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Normal.Y = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Normal.Z = readFloat(&p);
|
|
|
|
// color
|
|
|
|
u32 col;
|
|
findNextNoneWhiteSpace(&p);
|
|
sscanf(p, "%08x", &col);
|
|
vtx.Color.set(col);
|
|
skipCurrentNoneWhiteSpace(&p);
|
|
|
|
// tcoord1
|
|
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.TCoords.X = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.TCoords.Y = readFloat(&p);
|
|
|
|
// tangent
|
|
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Tangent.X = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Tangent.Y = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Tangent.Z = readFloat(&p);
|
|
|
|
// binormal
|
|
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Binormal.X = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Binormal.Y = readFloat(&p);
|
|
findNextNoneWhiteSpace(&p);
|
|
vtx.Binormal.Z = readFloat(&p);
|
|
|
|
Vertices.push_back(vtx);
|
|
}
|
|
break;
|
|
};
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//! skips an (unknown) section in the irrmesh document
|
|
void CIrrMeshFileLoader::skipSection(io::IXMLReader* reader, bool reportSkipping)
|
|
{
|
|
#ifdef _DEBUG
|
|
os::Printer::log("irrMesh skipping section", core::stringc(reader->getNodeName()).c_str());
|
|
#endif
|
|
|
|
// skip if this element is empty anyway.
|
|
if (reader->isEmptyElement())
|
|
return;
|
|
|
|
// read until we've reached the last element in this section
|
|
u32 tagCounter = 1;
|
|
|
|
while(tagCounter && reader->read())
|
|
{
|
|
if (reader->getNodeType() == io::EXN_ELEMENT &&
|
|
!reader->isEmptyElement())
|
|
{
|
|
#ifdef _DEBUG
|
|
if (reportSkipping)
|
|
os::Printer::log("irrMesh unknown element", core::stringc(reader->getNodeName()).c_str());
|
|
#endif
|
|
|
|
++tagCounter;
|
|
}
|
|
else
|
|
if (reader->getNodeType() == io::EXN_ELEMENT_END)
|
|
--tagCounter;
|
|
}
|
|
}
|
|
|
|
|
|
//! parses a float from a char pointer and moves the pointer
|
|
//! to the end of the parsed float
|
|
inline f32 CIrrMeshFileLoader::readFloat(const c8** p)
|
|
{
|
|
f32 ftmp;
|
|
*p = core::fast_atof_move(*p, ftmp);
|
|
return ftmp;
|
|
}
|
|
|
|
|
|
//! parses an int from a char pointer and moves the pointer to
|
|
//! the end of the parsed float
|
|
inline s32 CIrrMeshFileLoader::readInt(const c8** p)
|
|
{
|
|
return (s32)readFloat(p);
|
|
}
|
|
|
|
|
|
//! places pointer to next begin of a token
|
|
void CIrrMeshFileLoader::skipCurrentNoneWhiteSpace(const c8** start)
|
|
{
|
|
const c8* p = *start;
|
|
|
|
while(*p && !(*p==' ' || *p=='\n' || *p=='\r' || *p=='\t'))
|
|
++p;
|
|
|
|
// TODO: skip comments <!-- -->
|
|
|
|
*start = p;
|
|
}
|
|
|
|
//! places pointer to next begin of a token
|
|
void CIrrMeshFileLoader::findNextNoneWhiteSpace(const c8** start)
|
|
{
|
|
const c8* p = *start;
|
|
|
|
while(*p && (*p==' ' || *p=='\n' || *p=='\r' || *p=='\t'))
|
|
++p;
|
|
|
|
// TODO: skip comments <!-- -->
|
|
|
|
*start = p;
|
|
}
|
|
|
|
|
|
//! reads floats from inside of xml element until end of xml element
|
|
void CIrrMeshFileLoader::readFloatsInsideElement(io::IXMLReader* reader, f32* floats, u32 count)
|
|
{
|
|
if (reader->isEmptyElement())
|
|
return;
|
|
|
|
while(reader->read())
|
|
{
|
|
// TODO: check for comments inside the element
|
|
// and ignore them.
|
|
|
|
if (reader->getNodeType() == io::EXN_TEXT)
|
|
{
|
|
// parse float data
|
|
core::stringc data = reader->getNodeData();
|
|
const c8* p = &data[0];
|
|
|
|
for (u32 i=0; i<count; ++i)
|
|
{
|
|
findNextNoneWhiteSpace(&p);
|
|
if (*p)
|
|
floats[i] = readFloat(&p);
|
|
else
|
|
floats[i] = 0.0f;
|
|
}
|
|
}
|
|
else
|
|
if (reader->getNodeType() == io::EXN_ELEMENT_END)
|
|
break; // end parsing text
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
} // end namespace scene
|
|
} // end namespace irr
|
|
|
|
#endif // _IRR_COMPILE_WITH_IRR_MESH_LOADER_
|