mirror of
https://github.com/DrBeef/Raze.git
synced 2024-11-27 14:32:42 +00:00
555 lines
16 KiB
C++
555 lines
16 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/
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
//
|
|
/*
|
|
** models.cpp
|
|
**
|
|
** MD2/DMD model format code
|
|
**
|
|
**/
|
|
|
|
#include "filesystem.h"
|
|
#include "model_md2.h"
|
|
#include "texturemanager.h"
|
|
#include "modelrenderer.h"
|
|
#include "printf.h"
|
|
|
|
#ifdef _MSC_VER
|
|
#pragma warning(disable:4244) // warning C4244: conversion from 'double' to 'float', possible loss of data
|
|
#endif
|
|
|
|
enum { VX, VZ, VY };
|
|
#define NUMVERTEXNORMALS 162
|
|
|
|
static float avertexnormals[NUMVERTEXNORMALS][3] = {
|
|
#include "tab_anorms.h"
|
|
};
|
|
|
|
//===========================================================================
|
|
//
|
|
// UnpackVector
|
|
// Packed: pppppppy yyyyyyyy. Yaw is on the XY plane.
|
|
//
|
|
//===========================================================================
|
|
|
|
static void UnpackVector(unsigned short packed, float vec[3])
|
|
{
|
|
float yaw = (packed & 511) / 512.0f * 2 * M_PI;
|
|
float pitch = ((packed >> 9) / 127.0f - 0.5f) * M_PI;
|
|
float cosp = (float) cos(pitch);
|
|
|
|
vec[VX] = (float) cos(yaw) * cosp;
|
|
vec[VY] = (float) sin(yaw) * cosp;
|
|
vec[VZ] = (float) sin(pitch);
|
|
}
|
|
|
|
|
|
//===========================================================================
|
|
//
|
|
// DMD file structure
|
|
//
|
|
//===========================================================================
|
|
|
|
struct dmd_chunk_t
|
|
{
|
|
int type;
|
|
int length; // Next chunk follows...
|
|
};
|
|
|
|
#pragma pack(1)
|
|
struct dmd_packedVertex_t
|
|
{
|
|
uint8_t vertex[3];
|
|
unsigned short normal; // Yaw and pitch.
|
|
};
|
|
|
|
struct dmd_packedFrame_t
|
|
{
|
|
float scale[3];
|
|
float translate[3];
|
|
char name[16];
|
|
dmd_packedVertex_t vertices[1];
|
|
};
|
|
#pragma pack()
|
|
|
|
// Chunk types.
|
|
enum
|
|
{
|
|
DMC_END, // Must be the last chunk.
|
|
DMC_INFO // Required; will be expected to exist.
|
|
};
|
|
|
|
//===========================================================================
|
|
//
|
|
// FDMDModel::Load
|
|
//
|
|
//===========================================================================
|
|
|
|
bool FDMDModel::Load(const char * path, int lumpnum, const char * buffer, int length)
|
|
{
|
|
dmd_chunk_t * chunk = (dmd_chunk_t*)(buffer + 12);
|
|
char *temp;
|
|
ModelFrame *frame;
|
|
int i;
|
|
|
|
int fileoffset = 12 + sizeof(dmd_chunk_t);
|
|
|
|
chunk->type = LittleLong(chunk->type);
|
|
while (chunk->type != DMC_END)
|
|
{
|
|
switch (chunk->type)
|
|
{
|
|
case DMC_INFO: // Standard DMD information chunk.
|
|
memcpy(&info, buffer + fileoffset, LittleLong(chunk->length));
|
|
info.skinWidth = LittleLong(info.skinWidth);
|
|
info.skinHeight = LittleLong(info.skinHeight);
|
|
info.frameSize = LittleLong(info.frameSize);
|
|
info.numSkins = LittleLong(info.numSkins);
|
|
info.numVertices = LittleLong(info.numVertices);
|
|
info.numTexCoords = LittleLong(info.numTexCoords);
|
|
info.numFrames = LittleLong(info.numFrames);
|
|
info.numLODs = LittleLong(info.numLODs);
|
|
info.offsetSkins = LittleLong(info.offsetSkins);
|
|
info.offsetTexCoords = LittleLong(info.offsetTexCoords);
|
|
info.offsetFrames = LittleLong(info.offsetFrames);
|
|
info.offsetLODs = LittleLong(info.offsetLODs);
|
|
info.offsetEnd = LittleLong(info.offsetEnd);
|
|
fileoffset += chunk->length;
|
|
break;
|
|
|
|
default:
|
|
// Just skip all unknown chunks.
|
|
fileoffset += chunk->length;
|
|
break;
|
|
}
|
|
// Read the next chunk header.
|
|
chunk = (dmd_chunk_t*)(buffer + fileoffset);
|
|
chunk->type = LittleLong(chunk->type);
|
|
fileoffset += sizeof(dmd_chunk_t);
|
|
}
|
|
|
|
// Allocate and load in the data.
|
|
skins = new FTextureID[info.numSkins];
|
|
|
|
for (i = 0; i < info.numSkins; i++)
|
|
{
|
|
skins[i] = LoadSkin(path, buffer + info.offsetSkins + i * 64);
|
|
}
|
|
temp = (char*)buffer + info.offsetFrames;
|
|
frames = new ModelFrame[info.numFrames];
|
|
|
|
for (i = 0, frame = frames; i < info.numFrames; i++, frame++)
|
|
{
|
|
dmd_packedFrame_t *pfr = (dmd_packedFrame_t *)(temp + info.frameSize * i);
|
|
|
|
memcpy(frame->name, pfr->name, sizeof(pfr->name));
|
|
frame->vindex = UINT_MAX;
|
|
}
|
|
mLumpNum = lumpnum;
|
|
return true;
|
|
}
|
|
|
|
//===========================================================================
|
|
//
|
|
// FDMDModel::LoadGeometry
|
|
//
|
|
//===========================================================================
|
|
|
|
void FDMDModel::LoadGeometry()
|
|
{
|
|
static int axis[3] = { VX, VY, VZ };
|
|
FileData lumpdata = fileSystem.ReadFile(mLumpNum);
|
|
const char *buffer = (const char *)lumpdata.GetMem();
|
|
texCoords = new FTexCoord[info.numTexCoords];
|
|
memcpy(texCoords, buffer + info.offsetTexCoords, info.numTexCoords * sizeof(FTexCoord));
|
|
|
|
const char *temp = buffer + info.offsetFrames;
|
|
framevtx= new ModelFrameVertexData[info.numFrames];
|
|
|
|
ModelFrameVertexData *framev;
|
|
int i, k, c;
|
|
for(i = 0, framev = framevtx; i < info.numFrames; i++, framev++)
|
|
{
|
|
dmd_packedFrame_t *pfr = (dmd_packedFrame_t *) (temp + info.frameSize * i);
|
|
dmd_packedVertex_t *pVtx;
|
|
|
|
framev->vertices = new DMDModelVertex[info.numVertices];
|
|
framev->normals = new DMDModelVertex[info.numVertices];
|
|
|
|
// Translate each vertex.
|
|
for(k = 0, pVtx = pfr->vertices; k < info.numVertices; k++, pVtx++)
|
|
{
|
|
UnpackVector((unsigned short)(pVtx->normal), framev->normals[k].xyz);
|
|
for(c = 0; c < 3; c++)
|
|
{
|
|
framev->vertices[k].xyz[axis[c]] =
|
|
(pVtx->vertex[c] * float(pfr->scale[c]) + float(pfr->translate[c]));
|
|
}
|
|
}
|
|
}
|
|
|
|
memcpy(lodInfo, buffer+info.offsetLODs, info.numLODs * sizeof(DMDLoDInfo));
|
|
for(i = 0; i < info.numLODs; i++)
|
|
{
|
|
lodInfo[i].numTriangles = LittleLong(lodInfo[i].numTriangles);
|
|
lodInfo[i].offsetTriangles = LittleLong(lodInfo[i].offsetTriangles);
|
|
if (lodInfo[i].numTriangles > 0)
|
|
{
|
|
lods[i].triangles = new FTriangle[lodInfo[i].numTriangles];
|
|
memcpy(lods[i].triangles, buffer + lodInfo[i].offsetTriangles, lodInfo[i].numTriangles * sizeof(FTriangle));
|
|
for (int j = 0; j < lodInfo[i].numTriangles; j++)
|
|
{
|
|
for (int kk = 0; kk < 3; kk++)
|
|
{
|
|
lods[i].triangles[j].textureIndices[kk] = LittleShort(lods[i].triangles[j].textureIndices[kk]);
|
|
lods[i].triangles[j].vertexIndices[kk] = LittleShort(lods[i].triangles[j].vertexIndices[kk]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
//===========================================================================
|
|
//
|
|
// Deletes everything that's no longer needed after building the vertex buffer
|
|
//
|
|
//===========================================================================
|
|
|
|
void FDMDModel::UnloadGeometry()
|
|
{
|
|
int i;
|
|
|
|
if (framevtx != NULL)
|
|
{
|
|
for (i=0;i<info.numFrames;i++)
|
|
{
|
|
if (framevtx[i].vertices != NULL) delete [] framevtx[i].vertices;
|
|
if (framevtx[i].normals != NULL) delete [] framevtx[i].normals;
|
|
|
|
framevtx[i].vertices = NULL;
|
|
framevtx[i].normals = NULL;
|
|
}
|
|
delete[] framevtx;
|
|
framevtx = NULL;
|
|
}
|
|
|
|
for(i = 0; i < info.numLODs; i++)
|
|
{
|
|
if (lods[i].triangles != NULL) delete[] lods[i].triangles;
|
|
lods[i].triangles = NULL;
|
|
}
|
|
|
|
if (texCoords != NULL) delete[] texCoords;
|
|
texCoords = NULL;
|
|
}
|
|
|
|
//===========================================================================
|
|
//
|
|
//
|
|
//
|
|
//===========================================================================
|
|
|
|
FDMDModel::~FDMDModel()
|
|
{
|
|
UnloadGeometry();
|
|
|
|
// skins are managed by the texture manager so they must not be deleted here.
|
|
if (skins != NULL) delete [] skins;
|
|
if (frames != NULL) delete [] frames;
|
|
}
|
|
|
|
//===========================================================================
|
|
//
|
|
//
|
|
//
|
|
//===========================================================================
|
|
|
|
void FDMDModel::BuildVertexBuffer(FModelRenderer *renderer)
|
|
{
|
|
if (!GetVertexBuffer(renderer->GetType()))
|
|
{
|
|
LoadGeometry();
|
|
|
|
int VertexBufferSize = info.numFrames * lodInfo[0].numTriangles * 3;
|
|
unsigned int vindex = 0;
|
|
|
|
auto vbuf = renderer->CreateVertexBuffer(false, info.numFrames == 1);
|
|
SetVertexBuffer(renderer->GetType(), vbuf);
|
|
|
|
FModelVertex *vertptr = vbuf->LockVertexBuffer(VertexBufferSize);
|
|
|
|
for (int i = 0; i < info.numFrames; i++)
|
|
{
|
|
DMDModelVertex *vert = framevtx[i].vertices;
|
|
DMDModelVertex *norm = framevtx[i].normals;
|
|
|
|
frames[i].vindex = vindex;
|
|
|
|
FTriangle *tri = lods[0].triangles;
|
|
|
|
for (int ii = 0; ii < lodInfo[0].numTriangles; ii++)
|
|
{
|
|
for (int j = 0; j < 3; j++)
|
|
{
|
|
|
|
int ti = tri->textureIndices[j];
|
|
int vi = tri->vertexIndices[j];
|
|
|
|
FModelVertex *bvert = &vertptr[vindex++];
|
|
bvert->Set(vert[vi].xyz[0], vert[vi].xyz[1], vert[vi].xyz[2], (float)texCoords[ti].s / info.skinWidth, (float)texCoords[ti].t / info.skinHeight);
|
|
bvert->SetNormal(norm[vi].xyz[0], norm[vi].xyz[1], norm[vi].xyz[2]);
|
|
}
|
|
tri++;
|
|
}
|
|
}
|
|
vbuf->UnlockVertexBuffer();
|
|
UnloadGeometry();
|
|
}
|
|
}
|
|
|
|
//===========================================================================
|
|
//
|
|
// for skin precaching
|
|
//
|
|
//===========================================================================
|
|
|
|
void FDMDModel::AddSkins(uint8_t *hitlist, const FTextureID*)
|
|
{
|
|
for (int i = 0; i < info.numSkins; i++)
|
|
{
|
|
if (skins[i].isValid())
|
|
{
|
|
hitlist[skins[i].GetIndex()] |= FTextureManager::HIT_Flat;
|
|
}
|
|
}
|
|
}
|
|
|
|
//===========================================================================
|
|
//
|
|
// FDMDModel::FindFrame
|
|
//
|
|
//===========================================================================
|
|
int FDMDModel::FindFrame(const char * name)
|
|
{
|
|
for (int i=0;i<info.numFrames;i++)
|
|
{
|
|
if (!stricmp(name, frames[i].name)) return i;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
//===========================================================================
|
|
//
|
|
//
|
|
//
|
|
//===========================================================================
|
|
|
|
void FDMDModel::RenderFrame(FModelRenderer *renderer, FGameTexture * skin, int frameno, int frameno2, double inter, int translation, const FTextureID*)
|
|
{
|
|
if (frameno >= info.numFrames || frameno2 >= info.numFrames) return;
|
|
|
|
if (!skin)
|
|
{
|
|
if (info.numSkins == 0 || !skins[0].isValid()) return;
|
|
skin = TexMan.GetGameTexture(skins[0], true);
|
|
if (!skin) return;
|
|
}
|
|
|
|
renderer->SetInterpolation(inter);
|
|
renderer->SetMaterial(skin, false, translation);
|
|
renderer->SetupFrame(this, frames[frameno].vindex, frames[frameno2].vindex, lodInfo[0].numTriangles * 3);
|
|
renderer->DrawArrays(0, lodInfo[0].numTriangles * 3);
|
|
renderer->SetInterpolation(0.f);
|
|
}
|
|
|
|
|
|
|
|
//===========================================================================
|
|
//
|
|
// Internal data structures of MD2 files - only used during loading
|
|
//
|
|
//===========================================================================
|
|
|
|
struct md2_header_t
|
|
{
|
|
int magic;
|
|
int version;
|
|
int skinWidth;
|
|
int skinHeight;
|
|
int frameSize;
|
|
int numSkins;
|
|
int numVertices;
|
|
int numTexCoords;
|
|
int numTriangles;
|
|
int numGlCommands;
|
|
int numFrames;
|
|
int offsetSkins;
|
|
int offsetTexCoords;
|
|
int offsetTriangles;
|
|
int offsetFrames;
|
|
int offsetGlCommands;
|
|
int offsetEnd;
|
|
};
|
|
|
|
struct md2_triangleVertex_t
|
|
{
|
|
uint8_t vertex[3];
|
|
uint8_t lightNormalIndex;
|
|
};
|
|
|
|
struct md2_packedFrame_t
|
|
{
|
|
float scale[3];
|
|
float translate[3];
|
|
char name[16];
|
|
md2_triangleVertex_t vertices[1];
|
|
};
|
|
|
|
//===========================================================================
|
|
//
|
|
// FMD2Model::Load
|
|
//
|
|
//===========================================================================
|
|
|
|
bool FMD2Model::Load(const char * path, int lumpnum, const char * buffer, int length)
|
|
{
|
|
md2_header_t * md2header = (md2_header_t *)buffer;
|
|
ModelFrame *frame;
|
|
uint8_t *md2_frames;
|
|
int i;
|
|
|
|
// Convert it to DMD.
|
|
header.magic = MD2_MAGIC;
|
|
header.version = 8;
|
|
header.flags = 0;
|
|
info.skinWidth = LittleLong(md2header->skinWidth);
|
|
info.skinHeight = LittleLong(md2header->skinHeight);
|
|
info.frameSize = LittleLong(md2header->frameSize);
|
|
info.numLODs = 1;
|
|
info.numSkins = LittleLong(md2header->numSkins);
|
|
info.numTexCoords = LittleLong(md2header->numTexCoords);
|
|
info.numVertices = LittleLong(md2header->numVertices);
|
|
info.numFrames = LittleLong(md2header->numFrames);
|
|
info.offsetSkins = LittleLong(md2header->offsetSkins);
|
|
info.offsetTexCoords = LittleLong(md2header->offsetTexCoords);
|
|
info.offsetFrames = LittleLong(md2header->offsetFrames);
|
|
info.offsetLODs = LittleLong(md2header->offsetEnd); // Doesn't exist.
|
|
lodInfo[0].numTriangles = LittleLong(md2header->numTriangles);
|
|
lodInfo[0].numGlCommands = LittleLong(md2header->numGlCommands);
|
|
lodInfo[0].offsetTriangles = LittleLong(md2header->offsetTriangles);
|
|
lodInfo[0].offsetGlCommands = LittleLong(md2header->offsetGlCommands);
|
|
info.offsetEnd = LittleLong(md2header->offsetEnd);
|
|
|
|
if (info.offsetFrames + info.frameSize * info.numFrames > length)
|
|
{
|
|
Printf("LoadModel: Model '%s' file too short\n", path);
|
|
return false;
|
|
}
|
|
if (lodInfo[0].numGlCommands <= 0)
|
|
{
|
|
Printf("LoadModel: Model '%s' invalid NumGLCommands\n", path);
|
|
return false;
|
|
}
|
|
|
|
skins = new FTextureID[info.numSkins];
|
|
|
|
for (i = 0; i < info.numSkins; i++)
|
|
{
|
|
skins[i] = LoadSkin(path, buffer + info.offsetSkins + i * 64);
|
|
}
|
|
|
|
// The frames need to be unpacked.
|
|
md2_frames = (uint8_t*)buffer + info.offsetFrames;
|
|
frames = new ModelFrame[info.numFrames];
|
|
|
|
for (i = 0, frame = frames; i < info.numFrames; i++, frame++)
|
|
{
|
|
md2_packedFrame_t *pfr = (md2_packedFrame_t *)(md2_frames + info.frameSize * i);
|
|
|
|
memcpy(frame->name, pfr->name, sizeof(pfr->name));
|
|
frame->vindex = UINT_MAX;
|
|
}
|
|
mLumpNum = lumpnum;
|
|
return true;
|
|
}
|
|
|
|
//===========================================================================
|
|
//
|
|
// FMD2Model::LoadGeometry
|
|
//
|
|
//===========================================================================
|
|
|
|
void FMD2Model::LoadGeometry()
|
|
{
|
|
static int axis[3] = { VX, VY, VZ };
|
|
uint8_t *md2_frames;
|
|
FileData lumpdata = fileSystem.ReadFile(mLumpNum);
|
|
const char *buffer = (const char *)lumpdata.GetMem();
|
|
|
|
texCoords = new FTexCoord[info.numTexCoords];
|
|
memcpy(texCoords, (uint8_t*)buffer + info.offsetTexCoords, info.numTexCoords * sizeof(FTexCoord));
|
|
|
|
md2_frames = (uint8_t*)buffer + info.offsetFrames;
|
|
framevtx = new ModelFrameVertexData[info.numFrames];
|
|
ModelFrameVertexData *framev;
|
|
int i, k, c;
|
|
|
|
for(i = 0, framev = framevtx; i < info.numFrames; i++, framev++)
|
|
{
|
|
md2_packedFrame_t *pfr = (md2_packedFrame_t *) (md2_frames + info.frameSize * i);
|
|
md2_triangleVertex_t *pVtx;
|
|
|
|
framev->vertices = new DMDModelVertex[info.numVertices];
|
|
framev->normals = new DMDModelVertex[info.numVertices];
|
|
|
|
// Translate each vertex.
|
|
for(k = 0, pVtx = pfr->vertices; k < info.numVertices; k++, pVtx++)
|
|
{
|
|
memcpy(framev->normals[k].xyz,
|
|
avertexnormals[pVtx->lightNormalIndex], sizeof(float) * 3);
|
|
|
|
for(c = 0; c < 3; c++)
|
|
{
|
|
framev->vertices[k].xyz[axis[c]] =
|
|
(pVtx->vertex[c] * pfr->scale[c] + pfr->translate[c]);
|
|
}
|
|
}
|
|
}
|
|
|
|
lods[0].triangles = new FTriangle[lodInfo[0].numTriangles];
|
|
|
|
int cnt = lodInfo[0].numTriangles;
|
|
memcpy(lods[0].triangles, buffer + lodInfo[0].offsetTriangles, sizeof(FTriangle) * cnt);
|
|
for (int j = 0; j < cnt; j++)
|
|
{
|
|
for (int kk = 0; kk < 3; kk++)
|
|
{
|
|
lods[0].triangles[j].textureIndices[kk] = LittleShort(lods[0].triangles[j].textureIndices[kk]);
|
|
lods[0].triangles[j].vertexIndices[kk] = LittleShort(lods[0].triangles[j].vertexIndices[kk]);
|
|
}
|
|
}
|
|
}
|
|
|
|
FMD2Model::~FMD2Model()
|
|
{
|
|
}
|
|
|