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import HOB viewer

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README.md
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@ -8,11 +8,13 @@ Tools to extract data from Star Wars: Rogue Squadron 3D.
* Image exporter - exports some images to pnm/pgm/tga files (according to their internal format).
* HOB parser - parses mesh data files.
* HMT parser - parses material data files and exports stored textures.
* HOB display - utilizes HOB & HMT parsers to view 3d objects used in game. Uses OpenGL and SDL for display & input handling.
Compilation
-----------
Use recent Lazarus (1.2.x) with Freepascal (2.6.x) to compile.
HOB display needs SDL 1.2 and OpenGL 1.x support to work.
TODO
-----------
@ -21,3 +23,4 @@ TODO
* hob parser: parse more header fields
* mesh viewer: reuse hmt & hob parsers to display data
* bundle repack: extract & compile bundle.00x archives
* terrain viewer

674
hob_display/COPYING Normal file
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@ -0,0 +1,674 @@
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This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

224
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{
Based on FPC FGL unit, copyright by FPC team.
License of FPC RTL is the same as our engine (modified LGPL,
see COPYING.txt for details).
Fixed to compile also under FPC 2.4.0 and 2.2.4.
Some small comfortable methods added.
}
{ Generic list of any type (TGenericStructList). }
unit GenericStructList;
{$mode objfpc}{$H+}
{$IF defined(VER2_2)} {$DEFINE OldSyntax} {$IFEND}
{$IF defined(VER2_4)} {$DEFINE OldSyntax} {$IFEND}
{$define HAS_ENUMERATOR}
{$ifdef VER2_2} {$undef HAS_ENUMERATOR} {$endif}
{$ifdef VER2_4_0} {$undef HAS_ENUMERATOR} {$endif}
{ Just undef enumerator always, in FPC 2.7.1 it's either broken
or I shouldn't overuse TFPGListEnumeratorSpec. }
{$undef HAS_ENUMERATOR}
{ FPC < 2.6.0 had buggy version of the Extract function,
also with different interface, see http://bugs.freepascal.org/view.php?id=19960. }
{$define HAS_EXTRACT}
{$ifdef VER2_2} {$undef HAS_EXTRACT} {$endif}
{$ifdef VER2_4} {$undef HAS_EXTRACT} {$endif}
interface
uses FGL;
type
{ Generic list of types that are compared by CompareByte.
This is equivalent to TFPGList, except it doesn't override IndexOf,
so your type doesn't need to have a "=" operator built-in inside FPC.
When calling IndexOf or Remove, it will simply compare values using
CompareByte, this is what TFPSList.IndexOf uses.
This way it works to create lists of records, vectors (constant size arrays),
old-style TP objects, and also is suitable to create a list of methods
(since for methods, the "=" is broken, for Delphi compatibility,
see http://bugs.freepascal.org/view.php?id=9228).
We also add some trivial helper methods like @link(Add) and @link(L). }
{ TGenericStructList }
generic TGenericStructList<T> = class(TFPSList)
private
type
TCompareFunc = function(const Item1, Item2: T): Integer;
TTypeList = array[0..MaxGListSize] of T;
PTypeList = ^TTypeList;
PT = ^T;
{$ifdef HAS_ENUMERATOR} TFPGListEnumeratorSpec = specialize TFPGListEnumerator<T>; {$endif}
{$ifndef OldSyntax}protected var{$else}
{$ifdef PASDOC}protected var{$else} { PasDoc can't handle "var protected", and I don't know how/if they should be handled? }
var protected{$endif}{$endif}
FOnCompare: TCompareFunc;
procedure CopyItem(Src, Dest: Pointer); override;
procedure Deref(Item: Pointer); override;
function Get(Index: Integer): T; {$ifdef CLASSESINLINE} inline; {$endif}
function GetList: PTypeList; {$ifdef CLASSESINLINE} inline; {$endif}
function ItemPtrCompare(Item1, Item2: Pointer): Integer;
procedure Put(Index: Integer; const Item: T); {$ifdef CLASSESINLINE} inline; {$endif}
public
constructor Create;
function Add(const Item: T): Integer; {$ifdef CLASSESINLINE} inline; {$endif}
{$ifdef HAS_EXTRACT} function Extract(const Item: T): T; {$ifdef CLASSESINLINE} inline; {$endif} {$endif}
function First: T; {$ifdef CLASSESINLINE} inline; {$endif}
{$ifdef HAS_ENUMERATOR} function GetEnumerator: TFPGListEnumeratorSpec; {$ifdef CLASSESINLINE} inline; {$endif} {$endif}
function IndexOf(const Item: T): Integer;
procedure Insert(Index: Integer; const Item: T); {$ifdef CLASSESINLINE} inline; {$endif}
function Last: T; {$ifdef CLASSESINLINE} inline; {$endif}
{$ifndef OldSyntax}
procedure Assign(Source: TGenericStructList);
{$endif OldSyntax}
function Remove(const Item: T): Integer; {$ifdef CLASSESINLINE} inline; {$endif}
procedure Sort(Compare: TCompareFunc);
property Items[Index: Integer]: T read Get write Put; default;
property List: PTypeList read GetList;
{ Pointer to items. Exactly like @link(List), but this points to a single item,
which means you can access particular item by @code(L[I]) instead of
@code(List^[I]) in FPC objfpc mode.
This is just trivial shortcut, but we use direct access a @italic(lot)
for structures. Reasonis: using Items[] default
property means copying the structures, which is
@orderedList(
@item(very dangerous (you can trivially easy modify a temporary result))
@item(slow (important for us, since these are used for vector arrays that
are crucial for renderer and various processing).)
) }
function L: PT;
{ Increase Count and return pointer to new item.
Comfortable and efficient way to add a new item that you want to immediately
initialize. }
function Add: PT;
function Copy: TGenericStructList;
end;
implementation
constructor TGenericStructList.Create;
begin
inherited Create(sizeof(T));
end;
procedure TGenericStructList.CopyItem(Src, Dest: Pointer);
begin
T(Dest^) := T(Src^);
end;
procedure TGenericStructList.Deref(Item: Pointer);
begin
Finalize(T(Item^));
end;
function TGenericStructList.Get(Index: Integer): T;
begin
Result := T(inherited Get(Index)^);
end;
function TGenericStructList.GetList: PTypeList;
begin
Result := PTypeList(FList);
end;
function TGenericStructList.ItemPtrCompare(Item1, Item2: Pointer): Integer;
begin
Result := FOnCompare(T(Item1^), T(Item2^));
end;
procedure TGenericStructList.Put(Index: Integer; const Item: T);
begin
inherited Put(Index, @Item);
end;
function TGenericStructList.Add(const Item: T): Integer;
begin
Result := inherited Add(@Item);
end;
{$ifdef HAS_EXTRACT}
function TGenericStructList.Extract(const Item: T): T;
begin
inherited Extract(@Item, @Result);
end;
{$endif}
function TGenericStructList.First: T;
begin
Result := T(inherited First^);
end;
{$ifdef HAS_ENUMERATOR}
function TGenericStructList.GetEnumerator: TFPGListEnumeratorSpec;
begin
Result := TFPGListEnumeratorSpec.Create(Self);
end;
{$endif}
function TGenericStructList.IndexOf(const Item: T): Integer;
begin
Result := inherited IndexOf(@Item);
end;
procedure TGenericStructList.Insert(Index: Integer; const Item: T);
begin
T(inherited Insert(Index)^) := Item;
end;
function TGenericStructList.Last: T;
begin
Result := T(inherited Last^);
end;
{$ifndef OldSyntax}
procedure TGenericStructList.Assign(Source: TGenericStructList);
var
i: Integer;
begin
Clear;
for I := 0 to Source.Count - 1 do
Add(Source[i]);
end;
{$endif OldSyntax}
function TGenericStructList.Remove(const Item: T): Integer;
begin
Result := IndexOf(Item);
if Result >= 0 then
Delete(Result);
end;
procedure TGenericStructList.Sort(Compare: TCompareFunc);
begin
FOnCompare := Compare;
inherited Sort(@ItemPtrCompare);
end;
function TGenericStructList.L: PT;
begin
Result := PT(FList);
end;
function TGenericStructList.Add: PT;
begin
Count := Count + 1;
Result := Addr(L[Count - 1]);
end;
function TGenericStructList.Copy: TGenericStructList;
begin
result := TGenericStructList.Create;
result.Assign(Self);
end;
end.

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unit hmt_parser;
{$mode objfpc}{$H+}
interface
uses
sysutils, Classes,
rs_image;
type
THmtMaterial = record
type1, type2: shortint;
unknown_float1, unknown_float2: single;
zero: integer;
hex_a: integer;
name: array[0..15] of byte;
name_string: string;
end;
THmtTexture = record
data_offset: integer;
palette_offset: integer;
name_offset: integer;
width, height: word;
name: array[0..15] of byte;
name_string: string;
image: TRSImage;
end;
THmtFile = record
material_count: integer;
texture_offset: integer;
texture_count: integer;
materials: array of THmtMaterial;
textures: array of THmtTexture;
end;
function ParseHmtFile(const fname: string): THmtFile;
//**************************************************************************************************
implementation
function NameToString(name: array of byte): string;
var
i: Integer;
begin
result := '';
for i := 0 to length(name) - 1 do begin
if name[i] = 0 then break;
result += char( name[i] );
end;
end;
procedure ReadTexture(var tex: THmtTexture; var f: TMemoryStream);
const
ImageDescription: array[0..5] of TImageDescription = (
(palette_entries: 16; sample_bits: 4),
(palette_entries: 256; sample_bits: 8),
(palette_entries: 0; sample_bits: 16),
(palette_entries: 0; sample_bits: 32),
(palette_entries: 0; sample_bits: 4),
(palette_entries: 0; sample_bits: 16)
);
var
image: TRSImage;
buf: array[0..27] of byte;
description: TImageDescription;
bpp: byte;
color_rgba: integer;
pos: int64;
begin
tex.data_offset := f.ReadDWord;
f.ReadBuffer(buf, 28);
tex.palette_offset := f.ReadDWord;
tex.name_offset := f.ReadDWord;
tex.width := f.ReadWord;
tex.height := f.ReadWord;
f.ReadByte; //0x01
bpp := f.ReadByte;
image.type_ := f.ReadByte;
f.ReadByte;
color_rgba := f.ReadDWord;
pos := f.Position;
f.Seek(tex.name_offset, TSeekOrigin.soBeginning);
f.ReadBuffer(tex.name, 16);
tex.name_string := NameToString(tex.name);
f.Seek(pos, TSeekOrigin.soBeginning);
description := ImageDescription[image.type_];
image.sampleBits := description.sample_bits;
image.paletteEntries := description.palette_entries;
image.width := tex.width;
//if (image.width and 1) > 1 then image.width += 1;
image.height := tex.height;
writeln('name: ', tex.name_string);
writeln('size: ', tex.width, 'x', tex.height);
writeln('subtype: ', image.type_, ' bpp: ', bpp);
writeln('sample bits: ', image.sampleBits);
writeln('palette offset: ', tex.palette_offset);
writeln('data offset: ', tex.data_offset);
if tex.palette_offset > 0 then begin
writeln('palette entries: ', image.paletteEntries);
f.Seek(tex.palette_offset, TSeekOrigin.soBeginning);
LoadPalette(image, f);
end;
f.Seek(tex.data_offset, TSeekOrigin.soBeginning);
LoadSamples(image, f);
DecodePixels(image);
f.Seek(pos, TSeekOrigin.soBeginning);
writeln;
tex.image := image;
end;
procedure ReadMaterial(var mat: THmtMaterial; var f: TMemoryStream);
begin
mat.type1 := f.ReadWord;
mat.type2 := f.ReadWord;
mat.unknown_float1 := f.ReadDWord;
mat.unknown_float2 := f.ReadDWord;
mat.zero := f.ReadDWord;
mat.hex_a := f.ReadDWord;
f.ReadBuffer(mat.name, 16);
mat.name_string := NameToString(mat.name);
writeln(mat.name_string);
if (mat.zero <> 0) or (mat.hex_a <> $A) then
writeln('unusual file');
end;
function ParseHmtFile(const fname: string): THmtFile;
var
f: TMemoryStream;
hmt: THmtFile;
i: Integer;
begin
f := TMemoryStream.Create;
f.LoadFromFile(fname);
//read main info
hmt.material_count := f.ReadDWord;
hmt.texture_offset := f.ReadDWord;
f.Seek(hmt.texture_offset, TSeekOrigin.soBeginning);
hmt.texture_count := f.ReadDWord;
f.Seek(8, TSeekOrigin.soBeginning);
//read materials
writeln('materials: ', hmt.material_count);
SetLength(hmt.materials, hmt.material_count);
for i := 0 to hmt.material_count - 1 do begin
ReadMaterial(hmt.materials[i], f);
end;
if hmt.texture_count = 0 then begin
result := hmt;
f.Free;
exit;
end;
//read textures
writeln('textures: ', hmt.texture_count);
f.Seek(hmt.texture_offset + 4, TSeekOrigin.soBeginning);
SetLength(hmt.textures, hmt.texture_count);
for i := 0 to hmt.texture_count - 1 do begin
ReadTexture(hmt.textures[i], f);
end;
f.Free;
result := hmt;
end;
end.

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unit hob_parser;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils;
type
TRGBA = record
color: integer;
end;
TTexCoord = record
u, v: smallint;
end;
THobFace = record
flags: integer;
b1, b2, b3: byte;
bsize: byte;
ftype: byte; //3 - tri, 4 - quad
material_index: word;
indices: array[0..3] of word;
vertex_colors: array[0..3] of TRGBA;
tex_coords: array[0..3] of TTexCoord;
end;
THobFaceGroup = record
meshdef1_offset: integer;
face_block_end_offset,
face_block_offset,
vertex_block_offset: integer;
face_count: integer;
faces: array of THobFace;
vertex_count: integer;
vertices: array of record
x, y, z, unknown: smallint; //+-2^15
end;
end;
THobObject = record
name: array[0..15] of byte;
face_group_offset: integer;
face_group_header_offset: integer;
face_group_header2_offset: integer;
face_group_count: integer;
face_group_count0: integer;
face_groups: array of THobFaceGroup;
end;
THobFile = record
obj_count: integer;
objects: array of THobObject;
end;
function ParseHobFile(const fname: string): THobFile;
//**************************************************************************************************
implementation
const
DumpFaces = false;
function NameToString(name: array of byte): string;
var
i: Integer;
begin
result := '';
for i := 0 to length(name) - 1 do begin
if name[i] = 0 then break;
result += char( name[i] );
end;
end;
procedure ReadFaces(var group: THobFaceGroup; var f: TMemoryStream);
const
FACE_UV = %100;
FACE_QUAD = %1000;
FACE_VCOLORS = %10000;
FACE_COLOR = %100000;
FACE_EXT = %1000000;
var
i, k: integer;
face: THobFace;
unknown: integer;
file_pos: integer;
color: integer;
begin
unknown := f.ReadDWord;
if (unknown <> 0) then
writeln('unusual file: zero');
unknown := f.ReadDWord;
if (unknown <> 0) then
writeln('unusual file: zero');
file_pos := f.ReadDWord;
if file_pos <> f.Position + 4 then
writeln('unusual file: face data start position');
group.face_count := f.ReadDWord;
writeln('faces: ', group.face_count);
SetLength(group.faces, group.face_count);
for i := 0 to group.face_count - 1 do begin
file_pos := f.Position;
face.flags := f.ReadDWord; //?
face.b1 := f.ReadByte; //46/49/4B
face.b2 := f.ReadByte; //51/71
face.b3 := f.ReadByte; //0C
face.bsize := f.ReadByte * 4; //block size: A = 40B, 9 = 36
unknown := f.ReadWord;
if (unknown <> 0) then
writeln('unusual file: face header separator');
//material index
face.material_index := f.ReadWord;
//face type: quad or triangle
if face.flags and FACE_QUAD > 0 then
face.ftype := 4
else
face.ftype := 3;
//read vertex indices
for k := 0 to 3 do
face.indices[k] := f.ReadWord;
//ext0
if face.flags and FACE_EXT > 0 then begin
f.ReadDWord;
f.ReadDWord;
end;
//vertex colors - either per vertex, or the same for all vertices
if face.flags and FACE_COLOR > 0 then begin
if face.flags and FACE_VCOLORS > 0 then begin
for k := 0 to face.ftype - 1 do
face.vertex_colors[k].color := f.ReadDWord;
end else begin
color := f.ReadDWord;
for k := 0 to face.ftype - 1 do
face.vertex_colors[k].color := color;
end;
end;
//uv coords
if face.flags and FACE_UV > 0 then begin
for k := 0 to face.ftype - 1 do begin
face.tex_coords[k].u := f.ReadWord;
face.tex_coords[k].v := f.ReadWord;
end;
end;
if DumpFaces then begin
if (face.flags and FACE_QUAD) = 0 then write('t') else write('q');
write(face.flags:5, face.b1:3, face.b2:4, face.b3:3, face.bsize:3);
write(' mt: ', face.material_index);
write(' verts: ');
for k := 0 to face.ftype - 1 do
write(face.indices[k]:4);
write(' colors: ');
for k := 0 to face.ftype - 1 do
write(IntToHex(face.vertex_colors[k].color, 8), ' ');
if (face.flags and FACE_UV) > 0 then begin
write(' uvs: ');
for k := 0 to face.ftype - 1 do
write('(', face.tex_coords[k].u, ', ', face.tex_coords[k].v, ') ');
end;
end;
//hack for awing.hob
if f.Position <> (file_pos + face.bsize) then begin
write(' rest:');
for k := f.Position to file_pos + face.bsize - 1 do
write(IntToHex(f.ReadByte, 2):3);
end;
if DumpFaces then
writeln;
group.faces[i] := face;
end;
end;
procedure ReadVertices(var group: THobFaceGroup; var f: TMemoryStream; const vertex_count: integer);
var
i: integer;
begin
SetLength(group.vertices, vertex_count);
for i := 0 to vertex_count - 1 do begin
group.vertices[i].x := SmallInt(f.ReadWord);
group.vertices[i].y := SmallInt(f.ReadWord);
group.vertices[i].z := SmallInt(f.ReadWord);
group.vertices[i].unknown := SmallInt(f.ReadWord);
end;
end;
procedure ReadFaceGroup(var fg: THobFaceGroup; var f: TMemoryStream);
var
filepos: int64;
begin
//save file position before seeking to face/vertex data and restore it, to read next group properly
filepos := f.Position;
//read group/meshdef0
f.Seek(16, fsFromCurrent); //unknown
fg.meshdef1_offset := f.ReadDWord;
writeln('fg meshdef offset:', fg.meshdef1_offset);
if fg.meshdef1_offset > 0 then begin
//read meshdef1
f.Seek(fg.meshdef1_offset - 4, fsFromBeginning);
fg.face_block_end_offset := f.ReadDWord;
f.Seek(20, fsFromCurrent); //zero
fg.vertex_count := f.ReadDWord;
f.Seek(8, fsFromCurrent); //zero
fg.face_block_offset := f.ReadDWord;
fg.vertex_block_offset := f.ReadDWord;
//faces
writeln('faces at: ', fg.face_block_offset, hexStr(fg.face_block_offset, 4):6);
f.Seek(fg.face_block_offset, fsFromBeginning);
ReadFaces(fg, f);
//vertices
writeln('vertices at: ', fg.vertex_block_offset, hexStr(fg.vertex_block_offset, 4):6);
f.Seek(fg.vertex_block_offset, fsFromBeginning);
ReadVertices(fg, f, fg.vertex_count);
end;
f.Seek(filepos + 132, fsFromBeginning);
end;
procedure ReadObject(var mesh: THobObject; var f: TMemoryStream);
var
i: integer;
begin
f.ReadBuffer(mesh.name, 16);
mesh.face_group_offset := f.ReadDWord;
mesh.face_group_header_offset := f.ReadDWord;
mesh.face_group_header2_offset := f.ReadDWord;
writeln('object: ', NameToString(mesh.name));
writeln('face group offset: ', mesh.face_group_offset);
//get face group count
f.Seek(mesh.face_group_header_offset, fsFromBeginning); //16B zero
mesh.face_group_count := f.ReadWord; //which?
mesh.face_group_count0 := f.ReadWord;
if mesh.face_group_count <> mesh.face_group_count0 then begin
writeln('facegroup counts don''t match!: ', mesh.face_group_count, mesh.face_group_count0:5);
end;
//read face group defs
SetLength(mesh.face_groups, mesh.face_group_count);
f.Seek(mesh.face_group_offset, fsFromBeginning);
for i := 0 to mesh.face_group_count - 1 do begin
ReadFaceGroup(mesh.face_groups[i], f);
end;
writeln;
end;
function ParseHobFile(const fname: string): THobFile;
var
f: TMemoryStream;
hob: THobFile;
i: integer;
filepos: int64;
begin
f := TMemoryStream.Create;
f.LoadFromFile(fname);
hob.obj_count := f.ReadDWord;
f.ReadDWord; //sometimes face block start, but useless in general
writeln('objects: ', hob.obj_count);
if hob.obj_count = 0 then begin
writeln('hob file is empty!');
result := hob;
exit;
end;
SetLength(hob.objects, hob.obj_count);
for i := 0 to hob.obj_count - 1 do begin
filepos := f.Position;
ReadObject(hob.objects[i], f);
//seek to next object header
if i + 1 < hob.obj_count then
f.Seek(filepos + 116, fsFromBeginning);
end;
f.Free;
result := hob;
end;
end.

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<?xml version="1.0" encoding="UTF-8"?>
<CONFIG>
<ProjectOptions>
<Version Value="9"/>
<PathDelim Value="\"/>
<General>
<Flags>
<MainUnitHasCreateFormStatements Value="False"/>
<MainUnitHasTitleStatement Value="False"/>
</Flags>
<SessionStorage Value="InProjectDir"/>
<MainUnit Value="0"/>
<Title Value="hob_viewer"/>
<UseAppBundle Value="False"/>
<ResourceType Value="res"/>
</General>
<i18n>
<EnableI18N LFM="False"/>
</i18n>
<VersionInfo>
<StringTable ProductVersion=""/>
</VersionInfo>
<BuildModes Count="1">
<Item1 Name="Default" Default="True"/>
</BuildModes>
<PublishOptions>
<Version Value="2"/>
</PublishOptions>
<RunParams>
<local>
<FormatVersion Value="1"/>
<CommandLineParams Value="xwing.hob"/>
</local>
</RunParams>
<RequiredPackages Count="1">
<Item1>
<PackageName Value="LCL"/>
</Item1>
</RequiredPackages>
<Units Count="5">
<Unit0>
<Filename Value="hob_viewer.pas"/>
<IsPartOfProject Value="True"/>
<UnitName Value="hob_viewer"/>
</Unit0>
<Unit1>
<Filename Value="simple_model.pas"/>
<IsPartOfProject Value="True"/>
<UnitName Value="simple_model"/>
</Unit1>
<Unit2>
<Filename Value="hob_parser.pas"/>
<IsPartOfProject Value="True"/>
<UnitName Value="hob_parser"/>
</Unit2>
<Unit3>
<Filename Value="hmt_parser.pas"/>
<IsPartOfProject Value="True"/>
<UnitName Value="hmt_parser"/>
</Unit3>
<Unit4>
<Filename Value="rs_image.pas"/>
<IsPartOfProject Value="True"/>
<UnitName Value="rs_image"/>
</Unit4>
</Units>
</ProjectOptions>
<CompilerOptions>
<Version Value="11"/>
<PathDelim Value="\"/>
<Target>
<Filename Value="hob_viewer"/>
</Target>
<SearchPaths>
<IncludeFiles Value="$(ProjOutDir)"/>
<UnitOutputDirectory Value="lib\$(TargetCPU)-$(TargetOS)"/>
</SearchPaths>
<Other>
<CompilerMessages>
<MsgFileName Value=""/>
</CompilerMessages>
<CompilerPath Value="$(CompPath)"/>
</Other>
</CompilerOptions>
<Debugging>
<Exceptions Count="2">
<Item1>
<Name Value="ECodetoolError"/>
</Item1>
<Item2>
<Name Value="EFOpenError"/>
</Item2>
</Exceptions>
</Debugging>
</CONFIG>

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(*
hob_viewer.pas
Copyright (c) 2014 David Pethes
This file is part of HOB viewer.
HOB viewer 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 3 of the License, or
(at your option) any later version.
HOB viewer 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 HOB viewer. If not, see <http://www.gnu.org/licenses/>.
*)
program hob_viewer;
uses
sysutils,
gl, glu, glext, sdl,
simple_model, GenericStructList, hob_parser, hmt_parser, rs_image;
const
SCR_W_fscrn = 1024;
SCR_H_fscrn = 768;
SCR_W_INIT = 1280;
SCR_H_INIT = 720;
SCREEN_BPP = 0;
RotationAngleIncrement = 1;
ZoomIncrement = 0.3;
MouseZoomDistanceMultiply = 0.15;
PitchIncrement = 0.5;
MouseTranslateMultiply = 0.025;
var
surface: PSDL_Surface;
done,
fullscreen: boolean;
model: TModel;
view: record
rotation_angle: single;
distance: single;
pitch: single;
wireframe: boolean;
points: boolean;
vcolors: boolean;
textures: boolean;
autorotate: boolean;
x, y: single;
end;
key_pressed: record
wireframe: boolean;
vcolors: boolean;
points: boolean;
textures: boolean;
fullscreen: boolean;
autorotate: boolean;
end;
mouse: record
drag: boolean;
translate: boolean;
last_x, last_y: integer;
resume_autorotate_on_release: boolean;
end;
procedure ReportError(s: string);
begin
writeln(s);
halt;
end;
// initial parameters
procedure InitGL;
var
ogl_info: string;
begin
ogl_info := format('vendor: %s renderer: %s', [glGetString(GL_VENDOR), glGetString(GL_RENDERER)]);
writeln(ogl_info);
ogl_info := 'version: ' + glGetString(GL_VERSION);
writeln(ogl_info);
//glShadeModel( GL_SMOOTH ); // Enable smooth shading
glClearColor( 0.0, 0.0, 0.0, 0.0 );
glClearDepth( 1.0 ); // Depth buffer setup
glEnable( GL_DEPTH_TEST ); // Enables Depth Testing
glDepthFunc( GL_LEQUAL ); // The Type Of Depth Test To Do
glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST ); // Really Nice Perspective Calculations
//glEnable( GL_CULL_FACE ); //backface culling
//glCullFace( GL_BACK );
glEnable(GL_TEXTURE_2D);
end;
// function to reset our viewport after a window resize
procedure ResizeWindow( width, height : integer );
begin
if ( height = 0 ) then
height := 1; // Protect against a divide by zero
glViewport( 0, 0, width, height ); // Setup our viewport.
glMatrixMode( GL_PROJECTION ); // change to the projection matrix and set our viewing volume.
glLoadIdentity;
gluPerspective( 45.0, width / height, 0.1, 1000.0 ); // Set our perspective
glMatrixMode( GL_MODELVIEW ); // Make sure we're changing the model view and not the projection
glLoadIdentity; // Reset The View
end;
procedure DrawModel;
var
verts: TVertexList;
vert: TVertex;
polygons: TPolyList;
i: integer;
mats: array of TMaterial;
procedure DrawPoly(quad: TQuad; elements: integer);
var
mat: TMaterial;
k: Integer;
begin
mat := mats[quad.material_index];
if mat.has_texture then begin
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, mat.gl_tex_id);
end else
glDisable(GL_TEXTURE_2D);
if elements = 3 then
glBegin( GL_TRIANGLES )
else
glBegin( GL_QUADS );
for k := 0 to elements - 1 do begin
if view.vcolors then
glColor4ubv(@quad.colors[k]);
if view.textures then
glTexCoord2fv(@quad.tex_coords[k, 0]);
glVertex3fv(@quad.vertices[k]);
end;
glEnd;
end;
begin
glDisable(GL_TEXTURE_2D);
if view.points then begin
verts := model.GetVertices;
glBegin( GL_POINTS );
glColor3f(0, 1, 0);
for i := 0 to verts.Count - 1 do begin
vert := verts[i];
glVertex3fv(@vert);
end;
glEnd;
end;
glColor3f(1, 1, 1);
mats := model.GetMaterials;
polygons := model.GetTriangles;
for i := 0 to polygons.Count - 1 do
DrawPoly(polygons[i], 3);
polygons := model.GetQuads;
for i := 0 to polygons.Count - 1 do
DrawPoly(polygons[i], 4);
end;
// The main drawing function.
procedure DrawGLScene;
begin
glClear( GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT );
glLoadIdentity;
if view.distance < ZoomIncrement then
view.distance := ZoomIncrement;
glTranslatef(view.x, view.y, -view.distance);
glRotatef(view.rotation_angle, 0.0, 1.0, 0.0);
glRotatef(view.pitch, 1, 0, 0);
if view.autorotate then
view.rotation_angle += RotationAngleIncrement;
if view.rotation_angle > 360 then
view.rotation_angle -= 360;
if view.wireframe then
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE)
else
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
DrawModel;
SDL_GL_SwapBuffers;
end;
procedure SetMode(w, h: word; fullscreen: boolean = false);
var
flags: UInt32;
begin
if fullscreen then
flags := SDL_OPENGL or SDL_FULLSCREEN
else
flags := SDL_OPENGL or SDL_RESIZABLE;
surface := SDL_SetVideoMode( w, h, SCREEN_BPP, flags);
if surface = nil then
ReportError('SDL_SetVideoMode failed');
SDL_WM_SetCaption('HOB viewer', nil);
end;
procedure WindowScreenshot(const width, height : integer);
const
head: array[0..8] of word = (0, 2, 0, 0, 0, 0, 0, 0, 24);
counter: integer = 0;
var
buf: pbyte;
f: file;
fname: string;
begin
buf := getmem(width * height * 4);
glReadBuffer(GL_FRONT);
glReadPixels(0, 0, width, height, GL_BGR, GL_UNSIGNED_BYTE, buf);
fname := format('screenshot_%.4d.tga', [counter]);
AssignFile(f, fname);
Rewrite(f, 1);
head[6] := width;
head[7] := height;
BlockWrite(f, head, sizeof(head));
BlockWrite(f, buf^, width * height * 3);
CloseFile(f);
counter += 1;
Freemem(buf);
end;
procedure InitView;
begin
view.rotation_angle := 0;
view.distance := 6;
view.pitch := 0;
view.x := 0;
view.y := 0;
view.wireframe := false;
view.points := false;
view.autorotate := true;
view.vcolors := true;
view.textures := true;
end;
procedure HandleEvent;
var
event: TSDL_Event;
begin
SDL_PollEvent( @event );
case event.type_ of
SDL_QUITEV:
Done := true;
SDL_VIDEORESIZE:
begin
SetMode (event.resize.w, event.resize.h);
ResizeWindow( surface^.w, surface^.h );
end;
SDL_KEYDOWN:
case event.key.keysym.sym of
SDLK_ESCAPE:
Done := true;
SDLK_F1:
if not key_pressed.fullscreen then begin
if not fullscreen then begin
SetMode(SCR_W_fscrn, SCR_H_fscrn, true);
fullscreen := true;
end else begin
SetMode(SCR_W_INIT, SCR_H_INIT, false);
fullscreen := false;
end;
InitGL;
ResizeWindow( surface^.w, surface^.h );
key_pressed.fullscreen := true;
end;
SDLK_s:
WindowScreenshot( surface^.w, surface^.h );
SDLK_PAGEUP:
view.distance += ZoomIncrement;
SDLK_PAGEDOWN:
view.distance -= ZoomIncrement;
SDLK_w:
if not key_pressed.wireframe then begin
view.wireframe := not view.wireframe;
key_pressed.wireframe := true;
end;
SDLK_v:
if not key_pressed.vcolors then begin
view.vcolors := not view.vcolors;
key_pressed.vcolors := true;
end;
SDLK_p:
if not key_pressed.points then begin
view.points := not view.points;
key_pressed.points := true;
end;
SDLK_t:
if not key_pressed.textures then begin
view.textures := not view.textures;
key_pressed.textures := true;
end;
SDLK_r:
if not key_pressed.autorotate then begin
view.autorotate := not view.autorotate;
key_pressed.autorotate := true;
end;
end;
SDL_KEYUP:
case event.key.keysym.sym of
SDLK_F1:
key_pressed.fullscreen := false;
SDLK_w:
key_pressed.wireframe := false;
SDLK_v:
key_pressed.vcolors := false;
SDLK_p:
key_pressed.points := false;
SDLK_t:
key_pressed.textures := false;
SDLK_r:
key_pressed.autorotate := false;
end;
SDL_MOUSEBUTTONDOWN: begin
mouse.resume_autorotate_on_release := view.autorotate;
if event.button.button in [1..3] then begin
mouse.drag := true;
mouse.translate := event.button.button in [2];
mouse.last_x := event.button.x;
mouse.last_y := event.button.y;
view.autorotate := false;
end;
if event.button.button = 5 then
view.distance += view.distance * MouseZoomDistanceMultiply;
if event.button.button = 4 then
view.distance -= view.distance * MouseZoomDistanceMultiply;
end;
SDL_MOUSEBUTTONUP: begin
mouse.drag := false;
view.autorotate := mouse.resume_autorotate_on_release;
end;
SDL_MOUSEMOTION: begin
if mouse.drag then begin
if not mouse.translate then begin
if event.motion.y <> mouse.last_y then begin
view.pitch += PitchIncrement * event.motion.yrel;
mouse.last_y := event.motion.y;
end;
if event.motion.x <> mouse.last_x then begin
view.rotation_angle += RotationAngleIncrement * event.motion.xrel;
mouse.last_x := event.motion.x;
end;
end else begin
if event.motion.y <> mouse.last_y then begin
view.y -= MouseTranslateMultiply * event.motion.yrel;
mouse.last_y := event.motion.y;
end;
if event.motion.x <> mouse.last_x then begin
view.x += MouseTranslateMultiply * event.motion.xrel;
mouse.last_x := event.motion.x;
end;
end;
end;
end;
end;
end;
//******************************************************************************
var
sec, frames: integer;
hob_file, hmt_file: string;
begin
if Paramcount < 1 then begin
writeln('specify HOB file');
exit;
end;
hob_file := ParamStr(1);
hmt_file := StringReplace(hob_file, '.hob', '.hmt', [rfIgnoreCase]);
model := TModel.Create;
model.Load(hob_file, hmt_file);
writeln('Init SDL...');
SDL_Init( SDL_INIT_VIDEO );
SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
SetMode(SCR_W_INIT, SCR_H_INIT);
writeln('Init OpenGL...');
InitGL;
ResizeWindow( surface^.w, surface^.h );
InitView;
model.InitGL;
sec := SDL_GetTicks;
frames := 0;
Done := False;
key_pressed.wireframe := false;
key_pressed.fullscreen := false;
while not Done do begin
HandleEvent;
// draw the scene
DrawGLScene;
frames += 1;
if (SDL_GetTicks - sec) >= 1000 then begin
write(frames:3, ' dist: ', view.distance:5:1, ' rot: ', view.rotation_angle:5:1, #13);
frames := 0;
sec := SDL_GetTicks;
end;
SDL_Delay(10);
//WindowScreenshot( surface^.w, surface^.h );
end;
model.Free;
SDL_Quit;
end.

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unit rs_image;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils;
type
TRGB = array[0..2] of byte;
PRGB = ^TRGB;
TPalette = array[0..255] of TRGB;
TRSImage = record
data_size: integer;
width, height: integer;
type_: byte;
sampleBits: byte;
paletteEntries: integer;
pixels: pbyte;
samples: pbyte;
palette: TPalette;
end;
type
TImageDescription = record
palette_entries: integer;
sample_bits: integer;
//alpha: byte;
end;
procedure LoadPalette(var image: TRSImage; var f: TMemoryStream);
procedure LoadSamples(var image: TRSImage; var f: TMemoryStream);
procedure DecodePixels(var img: TRSImage);
//**************************************************************************************************
implementation
procedure Unpack4To8bit(const src: PByte; const samples: integer; const dst: PByte);
var
i: Integer;
v: byte;
begin
for i := 0 to samples div 2 - 1 do begin
v := src[i];
dst[i * 2 ] := ((v shr 4) and %1111) shl 4;
dst[i * 2 + 1] := (v and %1111) shl 4;
end;
end;
procedure Unpack4bitTo24bitRGB(const src: PByte; const size: integer; const dst: PByte; const pal: TPalette);
var
i: Integer;
index: integer;
dest: PRGB;
begin
dest := PRGB(dst);
for i := 0 to size div 2 - 1 do begin
index := src[i];
dest[i * 2 ] := pal[(index shr 4) and 15];
dest[i * 2 + 1] := pal[index and 15];
end;
end;
procedure Unpack8bitTo24bitRGB(const src: PByte; const size: integer; const dst: PByte; const pal: TPalette);
var
i: Integer;
index: integer;
dest: PRGB;
begin
dest := PRGB(dst);
for i := 0 to size - 1 do begin
index := src[i];
dest[i] := pal[index];
end;
end;
procedure UseOddBytes(const src: PByte; const size: integer; const dst: pbyte);
var
i: integer;
begin
for i := 0 to size - 1 do begin
dst[i] := src[i * 2 + 1];
end;
end;
procedure DecodePixels(var img: TRSImage);
var
size: integer;
begin
img.pixels := nil;
if not(img.type_ in [0, 1, 2, 3, 4, 5]) then exit;
if img.sampleBits = 32 then begin
size := img.width * img.height * 4;
img.pixels := GetMem(size);
Move(img.samples^, img.pixels^, size);
end;
if img.sampleBits = 4 then begin
//4bit grayscale
if img.paletteEntries = 0 then begin
size := img.width * img.height;
img.pixels := GetMem(size);
Unpack4To8bit(img.samples, size, img.pixels);
end;
//24bit RGB palettized
if img.paletteEntries = 16 then begin
size := img.width * img.height;
img.pixels := GetMem(size * 3);
Unpack4bitTo24bitRGB(img.samples, size, img.pixels, img.palette);
end;
end;
if img.sampleBits = 8 then begin
//8bit grayscale
if img.paletteEntries = 0 then begin
size := img.width * img.height;
img.pixels := GetMem(size);
move(img.samples^, img.pixels^, size);
end;
//24bit RGB palettized
if img.paletteEntries = 256 then begin
size := img.width * img.height;
img.pixels := GetMem(size * 3);
Unpack8bitTo24bitRGB(img.samples, size, img.pixels, img.palette);
end;
end;
if img.sampleBits = 16 then begin
size := img.width * img.height;
img.pixels := GetMem(size);
UseOddBytes(img.samples, size, img.pixels);
end;
end;
procedure LoadPalette(var image: TRSImage; var f: TMemoryStream);
var
entries: integer;
begin
entries := image.paletteEntries;
case entries of
16, 256: f.ReadBuffer(image.palette, entries * 3); //RGB
end;
end;
procedure LoadSamples(var image: TRSImage; var f: TMemoryStream);
var
sample_bits: integer;
size: integer;
begin
sample_bits := image.sampleBits;
size := image.width * image.height * sample_bits div 8;
image.samples := getmem(size);
f.ReadBuffer(image.samples^, size);
if image.type_ = 2 then
f.ReadBuffer(image.samples^, size div 4);
end;
end.

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unit simple_model;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, gl,
fgl, GenericStructList, hob_parser, hmt_parser;
type
TVertex = record
x, y, z: single;
end;
TQuad = record
vertices: array [0..3] of TVertex;
material_index: integer;
tex_coords: array [0..3, 0..1] of single;
colors: array[0..3] of TRGBA;
end;
TMaterial = record
has_texture: boolean;
bpp: byte;
gl_tex_id: integer;
width, height: integer;
pixels: pbyte;
end;
TVertexList = specialize TGenericStructList<TVertex>;
TPolyList = specialize TGenericStructList<TQuad>;
TMaterialArray = array of TMaterial;
{ TModel }
TModel = class
private
_vertices: TVertexList;
_triangles: TPolyList;
_quads: TPolyList;
_materials: array of TMaterial;
_hmt: THmtFile;
procedure HmtRead(const filename: string);
procedure HobRead(const filename: string);
procedure HobReadMesh(const mesh: THobObject);
public
destructor Destroy; override;
procedure Load(const hob_filename, hmt_filename: string);
function GetTriangles: TPolyList;
function GetQuads: TPolyList;
function GetVertices: TVertexList;
function GetMaterials: TMaterialArray;
procedure InitGL;
end;
implementation
{ TModel }
function FixRange(const coord_i16: smallint): single;
begin
result := 0;
if coord_i16 <> 0 then
result := coord_i16 * (1 / 4000);
end;
function FixUvRange(const coord_i16: smallint): single;
begin
result := 0;
if coord_i16 <> 0 then
result := coord_i16 * (1 / 4096);
end;
procedure TModel.HobReadMesh(const mesh: THobObject);
var
i, k, idx: Integer;
fg: THobFaceGroup;
v: TVertex;
group_vertices: TVertexList;
quad: TQuad;
begin
group_vertices := TVertexList.Create;
for fg in mesh.face_groups do begin
for i := 0 to fg.vertex_count - 1 do begin
v.x := FixRange(fg.vertices[i].x);
v.y := FixRange(fg.vertices[i].y);
v.z := FixRange(fg.vertices[i].z);
//flip Y for OpenGL coord system, otherwise the model is upside down.
//Causes flipping of the texture too, compared to what the game shows
v.y := -v.y;
_vertices.Add(v);
group_vertices.Add(v);
end;
for i := 0 to fg.face_count - 1 do begin
for k := 0 to fg.faces[i].ftype - 1 do begin
idx := fg.faces[i].indices[k];
quad.vertices[k] := group_vertices[idx];
quad.colors[k] := fg.faces[i].vertex_colors[k];
quad.material_index := fg.faces[i].material_index;
quad.tex_coords[k, 0] := FixUvRange(fg.faces[i].tex_coords[k].u);
quad.tex_coords[k, 1] := FixUvRange(fg.faces[i].tex_coords[k].v);
end;
if fg.faces[i].ftype = 3 then
_triangles.Add(quad)
else
_quads.Add(quad);
end;
group_vertices.Clear;
end;
group_vertices.Free;
end;
procedure TModel.HobRead(const filename: string);
var
i: Integer;
hob: THobFile;
begin
hob := ParseHobFile(filename);
for i := 0 to hob.obj_count - 1 do
HobReadMesh(hob.objects[i]);
WriteLn('vertices: ', _vertices.Count);
WriteLn('faces (tri/quad): ', _triangles.Count + _quads.Count, _triangles.Count:6, _quads.Count:6);
end;
procedure TModel.HmtRead(const filename: string);
procedure SetTexByName (var mat: TMaterial; const name: string);
var
i: integer;
tex: THmtTexture;
begin
mat.has_texture := false;
for i := 0 to _hmt.texture_count - 1 do
if _hmt.textures[i].name_string = name then begin
tex := _hmt.textures[i];
if not (tex.image.type_ in [0,1,3,4]) then
break;
mat.bpp := 24;
if tex.image.type_ = 4 then
mat.bpp := 8;
mat.width := tex.width;
mat.height := tex.height;
mat.pixels := tex.image.pixels;
mat.has_texture := true;
writeln('material texture found: ', name);
break;
end;
end;
var
i: integer;
begin
_hmt := ParseHmtFile(filename);
SetLength(_materials, _hmt.material_count);
for i := 0 to _hmt.material_count - 1 do
SetTexByName(_materials[i], _hmt.materials[i].name_string);
end;
destructor TModel.Destroy;
begin
inherited Destroy;
_triangles.Free;
end;
procedure TModel.Load(const hob_filename, hmt_filename: string);
begin
_vertices := TVertexList.Create;
_triangles := TPolyList.Create;
_quads := TPolyList.Create;
WriteLn('Loading mesh file ', hob_filename);
HobRead(hob_filename);
WriteLn('Loading material file ', hmt_filename);
HmtRead(hmt_filename);
end;
function TModel.GetTriangles: TPolyList;
begin
result := _triangles;
end;
function TModel.GetQuads: TPolyList;
begin
result := _quads;
end;
function TModel.GetVertices: TVertexList;
begin
result := _vertices;
end;
function TModel.GetMaterials: TMaterialArray;
begin
result := _materials;
end;
procedure pnm_save(const fname: string; const p: pbyte; const w, h: integer);
var
f: file;
c: PChar;
Begin
c := PChar(format('P6'#10'%d %d'#10'255'#10, [w, h]));
AssignFile (f, fname);
Rewrite (f, 1);
BlockWrite (f, c^, strlen(c));
BlockWrite (f, p^, w * h * 3);
CloseFile (f);
end;
procedure pgm_save(fname: string; p: pbyte; w, h: integer) ;
var
f: file;
c: PChar;
Begin
c := PChar(format('P5'#10'%d %d'#10'255'#10, [w, h]));
AssignFile (f, fname);
Rewrite (f, 1);
BlockWrite (f, c^, strlen(c));
BlockWrite (f, p^, w * h);
CloseFile (f);
end;
procedure TModel.InitGL;
procedure GenTexture(var mat: TMaterial);
begin
glGenTextures(1, @mat.gl_tex_id);
glBindTexture(GL_TEXTURE_2D, mat.gl_tex_id);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
if mat.bpp = 24 then begin
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, mat.width, mat.height, 0, GL_RGB, GL_UNSIGNED_BYTE, mat.pixels);
//pnm_save(IntToStr(mat.gl_tex_id)+'.pnm', mat.pixels, mat.width, mat.height);
end;
if mat.bpp = 8 then begin
glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE, mat.width, mat.height, 0, GL_RED, GL_UNSIGNED_BYTE, mat.pixels);
//pgm_save(IntToStr(mat.gl_tex_id)+'.pgm', mat.pixels, mat.width, mat.height);
end;
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
//which mode?
// glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
// glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
end;
var
i: integer;
begin
for i := 0 to _hmt.material_count - 1 do begin
if _materials[i].has_texture then
GenTexture(_materials[i]);
end;
end;
end.