raze/source/common/models/model.cpp
Christoph Oelckers a4dd5bb4ce - rewrote the model storage code.
Using proper C++ containers now.
2022-10-27 16:55:54 +02:00

243 lines
5.8 KiB
C++

//
//---------------------------------------------------------------------------
//
// Copyright(C) 2005-2016 Christoph Oelckers
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see http://www.gnu.org/licenses/
//
//--------------------------------------------------------------------------
//
/*
** gl_models.cpp
**
** General model handling code
**
**/
#include "filesystem.h"
#include "cmdlib.h"
#include "sc_man.h"
#include "m_crc32.h"
#include "printf.h"
#include "model_ue1.h"
#include "model_obj.h"
#include "model_md2.h"
#include "model_md3.h"
#include "model_kvx.h"
#include "model_iqm.h"
#include "i_time.h"
#include "voxels.h"
#include "texturemanager.h"
#include "modelrenderer.h"
TArray<FString> savedModelFiles;
TDeletingArray<FModel*> Models;
TArray<FSpriteModelFrame> SpriteModelFrames;
/////////////////////////////////////////////////////////////////////////////
void FlushModels()
{
for (int i = Models.Size() - 1; i >= 0; i--)
{
Models[i]->DestroyVertexBuffer();
}
}
/////////////////////////////////////////////////////////////////////////////
FModel::FModel()
{
for (int i = 0; i < NumModelRendererTypes; i++)
mVBuf[i] = nullptr;
}
FModel::~FModel()
{
DestroyVertexBuffer();
}
void FModel::DestroyVertexBuffer()
{
for (int i = 0; i < NumModelRendererTypes; i++)
{
delete mVBuf[i];
mVBuf[i] = nullptr;
}
}
//===========================================================================
//
// FindGFXFile
//
//===========================================================================
static int FindGFXFile(FString & fn)
{
int lump = fileSystem.CheckNumForFullName(fn); // if we find something that matches the name plus the extension, return it and do not enter the substitution logic below.
if (lump != -1) return lump;
int best = -1;
auto dot = fn.LastIndexOf('.');
auto slash = fn.LastIndexOf('/');
if (dot > slash) fn.Truncate(dot);
static const char * extensions[] = { ".png", ".jpg", ".tga", ".pcx", nullptr };
for (const char ** extp=extensions; *extp; extp++)
{
lump = fileSystem.CheckNumForFullName(fn + *extp);
if (lump >= best) best = lump;
}
return best;
}
//===========================================================================
//
// LoadSkin
//
//===========================================================================
FTextureID LoadSkin(const char * path, const char * fn)
{
FString buffer;
buffer.Format("%s%s", path, fn);
int texlump = FindGFXFile(buffer);
const char * const texname = texlump < 0 ? fn : fileSystem.GetFileFullName(texlump);
return TexMan.CheckForTexture(texname, ETextureType::Any, FTextureManager::TEXMAN_TryAny);
}
//===========================================================================
//
// ModelFrameHash
//
//===========================================================================
int ModelFrameHash(FSpriteModelFrame * smf)
{
const uint32_t *table = GetCRCTable ();
uint32_t hash = 0xffffffff;
const char * s = (const char *)(&smf->type); // this uses type, sprite and frame for hashing
const char * se= (const char *)(&smf->hashnext);
for (; s<se; s++)
{
hash = CRC1 (hash, *s, table);
}
return hash ^ 0xffffffff;
}
//===========================================================================
//
// FindModel
//
//===========================================================================
unsigned FindModel(const char * path, const char * modelfile, bool silent)
{
FModel * model = nullptr;
FString fullname;
if (path) fullname.Format("%s%s", path, modelfile);
else fullname = modelfile;
int lump = fileSystem.CheckNumForFullName(fullname);
if (lump<0)
{
Printf(PRINT_HIGH, "FindModel: '%s' not found\n", fullname.GetChars());
return -1;
}
for(unsigned i = 0; i< Models.Size(); i++)
{
if (!Models[i]->mFileName.CompareNoCase(fullname)) return i;
}
int len = fileSystem.FileLength(lump);
FileData lumpd = fileSystem.ReadFile(lump);
char * buffer = (char*)lumpd.GetMem();
if ( (size_t)fullname.LastIndexOf("_d.3d") == fullname.Len()-5 )
{
FString anivfile = fullname.GetChars();
anivfile.Substitute("_d.3d","_a.3d");
if ( fileSystem.CheckNumForFullName(anivfile) > 0 )
{
model = new FUE1Model;
}
}
else if ( (size_t)fullname.LastIndexOf("_a.3d") == fullname.Len()-5 )
{
FString datafile = fullname.GetChars();
datafile.Substitute("_a.3d","_d.3d");
if ( fileSystem.CheckNumForFullName(datafile) > 0 )
{
model = new FUE1Model;
}
}
else if ( (size_t)fullname.LastIndexOf(".obj") == fullname.Len() - 4 )
{
model = new FOBJModel;
}
else if (!memcmp(buffer, "DMDM", 4))
{
model = new FDMDModel;
}
else if (!memcmp(buffer, "IDP2", 4))
{
model = new FMD2Model;
}
else if (!memcmp(buffer, "IDP3", 4))
{
model = new FMD3Model;
}
else if (!memcmp(buffer, "INTERQUAKEMODEL\0", 16))
{
model = new IQMModel;
}
if (model != nullptr)
{
if (!model->Load(path, lump, buffer, len))
{
delete model;
return -1;
}
}
else
{
// try loading as a voxel
FVoxel *voxel = R_LoadKVX(lump);
if (voxel != nullptr)
{
model = new FVoxelModel(voxel, true);
}
else
{
Printf(PRINT_HIGH, "LoadModel: Unknown model format in '%s'\n", fullname.GetChars());
return -1;
}
}
// The vertex buffer cannot be initialized here because this gets called before OpenGL is initialized
model->mFileName = fullname;
return Models.Push(model);
}