+++ /dev/null
-/*
-Copyright (C) 2001-2006, William Joseph.
-All Rights Reserved.
-
-This file is part of GtkRadiant.
-
-GtkRadiant is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-GtkRadiant 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 General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GtkRadiant; if not, write to the Free Software
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-*/
-
-#include "md2.h"
-
-#include "ifilesystem.h"
-#include "imodel.h"
-
-#include "imagelib.h"
-#include "bytestreamutils.h"
-
-#include "model.h"
-#include "ident.h"
-#include "mdlnormals.h"
-
-typedef unsigned char byte;
-
-/*
-========================================================================
-
-.MD2 triangle model file format
-
-========================================================================
-*/
-#define MD2_NUMVERTEXNORMALS 162
-#define MD2_MAX_SKINNAME 64
-
-const unsigned char MD2_IDENT[4] = { 'I', 'D', 'P', '2', };
-#define MD2_VERSION 8
-
-#define MD2_MAX_TRIANGLES 4096
-#define MD2_MAX_VERTS 2048
-#define MD2_MAX_FRAMES 512
-#define MD2_MAX_MD2SKINS 32
-#define MD2_MAX_SKINNAME 64
-
-typedef struct
-{
- short s;
- short t;
-} md2St_t;
-
-void istream_read_md2St(PointerInputStream& inputStream, md2St_t& st)
-{
- st.s = istream_read_int16_le(inputStream);
- st.t = istream_read_int16_le(inputStream);
-}
-
-typedef struct
-{
- short index_xyz[3];
- short index_st[3];
-} md2Triangle_t;
-
-void istream_read_md2Triangle(PointerInputStream& inputStream, md2Triangle_t& triangle)
-{
- triangle.index_xyz[0] = istream_read_int16_le(inputStream);
- triangle.index_xyz[1] = istream_read_int16_le(inputStream);
- triangle.index_xyz[2] = istream_read_int16_le(inputStream);
- triangle.index_st[0] = istream_read_int16_le(inputStream);
- triangle.index_st[1] = istream_read_int16_le(inputStream);
- triangle.index_st[2] = istream_read_int16_le(inputStream);
-}
-
-typedef struct
-{
- byte v[3]; // scaled byte to fit in frame mins/maxs
- byte lightnormalindex;
-} md2XyzNormal_t;
-
-void istream_read_md2XyzNormal(PointerInputStream& inputStream, md2XyzNormal_t& xyz)
-{
- inputStream.read(xyz.v, 3);
- inputStream.read(&xyz.lightnormalindex, 1);
-}
-
-#define MD2_XYZNORMAL_V0 0
-#define MD2_XYZNORMAL_V1 1
-#define MD2_XYZNORMAL_V2 2
-#define MD2_XYZNORMAL_LNI 3
-#define MD2_XYZNORMAL_SIZE 4
-
-typedef struct
-{
- float scale[3]; // multiply byte verts by this
- float translate[3]; // then add this
- char name[16]; // frame name from grabbing
- md2XyzNormal_t verts[1]; // variable sized
-} md2Frame_t;
-
-void istream_read_md2Frame(PointerInputStream& inputStream, md2Frame_t& frame)
-{
- frame.scale[0] = istream_read_float32_le(inputStream);
- frame.scale[1] = istream_read_float32_le(inputStream);
- frame.scale[2] = istream_read_float32_le(inputStream);
- frame.translate[0] = istream_read_float32_le(inputStream);
- frame.translate[1] = istream_read_float32_le(inputStream);
- frame.translate[2] = istream_read_float32_le(inputStream);
- inputStream.read(reinterpret_cast<unsigned char*>(frame.name), 16);
-}
-
-
-// the glcmd format:
-// a positive integer starts a tristrip command, followed by that many
-// vertex structures.
-// a negative integer starts a trifan command, followed by -x vertexes
-// a zero indicates the end of the command list.
-// a vertex consists of a floating point s, a floating point t,
-// and an integer vertex index.
-
-
-typedef struct
-{
- unsigned char ident[4];
- int version;
-
- int skinwidth;
- int skinheight;
- int framesize; // byte size of each frame
-
- int num_skins;
- int num_xyz;
- int num_st; // greater than num_xyz for seams
- int num_tris;
- int num_glcmds; // dwords in strip/fan command list
- int num_frames;
-
- int ofs_skins; // each skin is a MAX_SKINNAME string
- int ofs_st; // byte offset from start for md2St_t
- int ofs_tris; // offset for md2triangle_t
- int ofs_frames; // offset for first md2Frame_t
- int ofs_glcmds;
- int ofs_end; // end of file
-
-} md2Header_t;
-
-void istream_read_md2Header(PointerInputStream& inputStream, md2Header_t& header)
-{
- inputStream.read(header.ident, 4);
- header.version = istream_read_int32_le(inputStream);
- header.skinwidth = istream_read_int32_le(inputStream);
- header.skinheight = istream_read_int32_le(inputStream);
- header.framesize = istream_read_int32_le(inputStream);
- header.num_skins = istream_read_int32_le(inputStream);
- header.num_xyz = istream_read_int32_le(inputStream);
- header.num_st = istream_read_int32_le(inputStream);
- header.num_tris = istream_read_int32_le(inputStream);
- header.num_glcmds = istream_read_int32_le(inputStream);
- header.num_frames = istream_read_int32_le(inputStream);
- header.ofs_skins = istream_read_int32_le(inputStream);
- header.ofs_st = istream_read_int32_le(inputStream);
- header.ofs_tris = istream_read_int32_le(inputStream);
- header.ofs_frames = istream_read_int32_le(inputStream);
- header.ofs_glcmds = istream_read_int32_le(inputStream);
- header.ofs_end = istream_read_int32_le(inputStream);
-}
-
-
-ArbitraryMeshVertex MD2Vertex_construct(const md2Header_t* pHeader, const md2Frame_t* pFrame, const md2XyzNormal_t* xyz, const md2St_t* st)
-{
- return ArbitraryMeshVertex(
- Vertex3f(
- xyz->v[0] * pFrame->scale[0] + pFrame->translate[0],
- xyz->v[1] * pFrame->scale[1] + pFrame->translate[1],
- xyz->v[2] * pFrame->scale[2] + pFrame->translate[2]
- ),
- Normal3f(
- g_mdl_normals[xyz->lightnormalindex][0],
- g_mdl_normals[xyz->lightnormalindex][1],
- g_mdl_normals[xyz->lightnormalindex][2]
- ),
- TexCoord2f(
- (float)st->s / pHeader->skinwidth,
- (float)st->t / pHeader->skinheight
- )
- );
-}
-
-void MD2Surface_read(Model& model, const byte* buffer, ArchiveFile& file)
-{
- Surface& surface = model.newSurface();
- md2Header_t header;
- {
- PointerInputStream inputStream(buffer);
- istream_read_md2Header(inputStream, header);
- }
-
- {
-
- md2Frame_t frame;
- PointerInputStream frameStream(buffer + header.ofs_frames);
- istream_read_md2Frame(frameStream, frame);
-
-
- surface.indices().reserve(header.num_tris * 3);
-
- Array<md2XyzNormal_t> md2Xyz(header.num_xyz);
- for(Array<md2XyzNormal_t>::iterator i = md2Xyz.begin(); i != md2Xyz.end(); ++i)
- {
- istream_read_md2XyzNormal(frameStream, *i);
- }
-
- Array<md2St_t> md2St(header.num_st);
- PointerInputStream stStream(buffer + header.ofs_st);
- for(Array<md2St_t>::iterator i = md2St.begin(); i != md2St.end(); ++i)
- {
- istream_read_md2St(stStream, *i);
- }
-
- UniqueVertexBuffer<ArbitraryMeshVertex> inserter(surface.vertices());
- inserter.reserve(header.num_st);
-
- PointerInputStream triangleStream(buffer + header.ofs_tris);
- for(int i = 0; i < header.num_tris; ++i)
- {
- md2Triangle_t triangle;
- istream_read_md2Triangle(triangleStream, triangle);
- surface.indices().insert(inserter.insert(MD2Vertex_construct(&header, &frame, &md2Xyz[triangle.index_xyz[0]], &md2St[triangle.index_st[0]])));
- surface.indices().insert(inserter.insert(MD2Vertex_construct(&header, &frame, &md2Xyz[triangle.index_xyz[1]], &md2St[triangle.index_st[1]])));
- surface.indices().insert(inserter.insert(MD2Vertex_construct(&header, &frame, &md2Xyz[triangle.index_xyz[2]], &md2St[triangle.index_st[2]])));
- }
- }
-
- char skinname[MD2_MAX_SKINNAME];
- char skinnameRelative[MD2_MAX_SKINNAME];
- char path[MD2_MAX_SKINNAME];
- int i = MD2_MAX_SKINNAME;
- PointerInputStream inputStream(buffer + header.ofs_skins);
- inputStream.read(reinterpret_cast<byte*>(skinnameRelative), MD2_MAX_SKINNAME);
- // relative texture path - allows moving of models in game dir structure without changing the skinpath
- // e.g. used in ufo:ai
- if (skinnameRelative[0] == '.')
- {
- strncpy(path, file.getName(), MD2_MAX_SKINNAME);
- for (; i--;)
- {
- // skip filename
- if (path[i] == '/' || path[i] == '\\')
- break;
- path[i] = '\0';
- }
-// globalErrorStream() << "modified skinname: " << path << " (path) and " << skinnameRelative << " (texture)" << "\n";
- snprintf(skinname, MD2_MAX_SKINNAME, "%s%s", path, &skinnameRelative[1]);
-// globalErrorStream() << skinname << "\n";
- }
- else
- {
- strcpy(skinname, skinnameRelative);
- }
- surface.setShader(skinname);
- surface.updateAABB();
-}
-
-void MD2Model_read(Model& model, const byte* buffer, ArchiveFile& file)
-{
- MD2Surface_read(model, buffer, file);
- model.updateAABB();
-}
-
-scene::Node& MD2Model_new(const byte* buffer, ArchiveFile& file)
-{
- ModelNode* modelNode = new ModelNode();
- MD2Model_read(modelNode->model(), buffer, file);
- return modelNode->node();
-}
-
-scene::Node& MD2Model_default()
-{
- ModelNode* modelNode = new ModelNode();
- Model_constructNull(modelNode->model());
- return modelNode->node();
-}
-
-scene::Node& MD2Model_fromBuffer(unsigned char* buffer, ArchiveFile& file)
-{
- if (!ident_equal(buffer, MD2_IDENT))
- {
- globalErrorStream() << "MD2 read error: incorrect ident\n";
- return MD2Model_default();
- }
- else
- {
- return MD2Model_new(buffer, file);
- }
-}
-
-scene::Node& loadMD2Model(ArchiveFile& file)
-{
- ScopedArchiveBuffer buffer(file);
- return MD2Model_fromBuffer(buffer.buffer, file);
-}
projects / voretournament / voretournament.git / blobdiff