raze/source/core/rendering/hw_voxels.cpp
2023-08-20 02:25:12 +02:00

117 lines
2.7 KiB
C++

//
//---------------------------------------------------------------------------
//
// Copyright(C) 2021 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/
//
//--------------------------------------------------------------------------
//
/*
** hw_voxels.cpp
**
** voxel handling.
**
**/
#include "build.h"
#include "voxels.h"
#include "hw_voxels.h"
#include "tiletexture.h"
#include "gamecontrol.h"
static int voxlumps[MAXVOXELS];
float voxscale[MAXVOXELS];
voxmodel_t* voxmodels[MAXVOXELS];
FixedBitArray<MAXVOXELS> voxrotate;
void voxInit()
{
for (auto& v : voxscale) v = 1.f;
voxrotate.Zero();
}
void voxClear()
{
for (auto& vox : voxmodels)
{
if (vox)
{
delete vox->model;
delete vox;
}
vox = nullptr;
}
}
int voxDefine(int voxindex, const char* filename)
{
if ((unsigned)voxindex >= MAXVOXELS)
return -1;
int i = fileSystem.FindFile(filename);
voxlumps[voxindex] = i;
return i < 0 ? -1 : 0;
}
static voxmodel_t* voxload(int lumpnum)
{
FVoxel* voxel = R_LoadKVX(lumpnum);
if (voxel != nullptr)
{
voxmodel_t* vm = new voxmodel_t;
*vm = {};
auto pivot = voxel->Mips[0].Pivot;
//vm->mdnum = 1; //VOXel model id
vm->scale = vm->bscale = 1.f;
vm->piv.X = float(pivot.X);
vm->piv.Y = float(pivot.Y);
vm->piv.Z = float(pivot.Z);
vm->siz.X = voxel->Mips[0].SizeX;
vm->siz.Y = voxel->Mips[0].SizeY;
vm->siz.Z = voxel->Mips[0].SizeZ;
vm->is8bit = true;
voxel->Mips[0].Pivot.Zero(); // Needs to be taken out of the voxel data because it gets baked into the vertex buffer which we cannot use here.
vm->model = new FVoxelModel(voxel, true);
return vm;
}
return nullptr;
}
void LoadVoxelModels()
{
for (int i = 0; i < MAXVOXELS; i++)
{
int lumpnum = voxlumps[i];
if (lumpnum > 0)
{
voxmodels[i] = voxload(lumpnum);
if (voxmodels[i])
voxmodels[i]->scale = voxscale[i];
else
Printf("Unable to load voxel from %s\n", fileSystem.GetFileFullPath(lumpnum).c_str());
}
else
{
auto index = fileSystem.FindResource(i, "KVX");
if (index >= 0)
{
voxmodels[i] = voxload(index);
}
}
}
}