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GS.Assets.pas
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GS.Assets.pas
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unit GS.Assets;
interface
uses Classes, SysUtils,
GS.Common,
GS.Stream,
GS.Geometry,
GS.Geometry.Mesh2D,
GS.Geometry.Mesh2D.Tools;
Type
TGSAssetType = (gsatText, gsatImage, gsatAtlas, gsatSound, gsatMesh2d, gsaComposed);
TGSAssetString = String;
TGSAssetInt = NativeInt;
IGSAsset = interface
function GetAssetType: TGSAssetType;
function GetAssetHumanName: TGSAssetString;
function GetAssetID: TGSAssetString;
function GetAssetMemorySize: TGSAssetInt;
procedure SaveToStream(aStream : TStream);
procedure LoadFromStream(aStream : TStream);
end;
TGSAssetBase = class(TInterfacedObject, IGSAsset)
protected
FID : TGUID;
function GetAssetType: TGSAssetType; virtual; abstract;
function GetAssetHumanName: TGSAssetString; virtual; abstract;
function GetAssetID: TGSAssetString; virtual;
function GetAssetMemorySize: TGSAssetInt; virtual; abstract;
public
Constructor Create; virtual;
procedure SaveToStream(aStream : TStream); virtual; abstract;
procedure LoadFromStream(aStream : TStream); virtual; abstract;
property AssetType : TGSAssetType read GetAssetType;
property AssetName : TGSAssetString read GetAssetHumanName;
property AssetId : TGSAssetString read GetAssetID;
property AssetMemorySize : TGSAssetInt read GetAssetMemorySize;
end;
TGSAssetObject = class(TGSAssetBase)
end;
TGSAssetComposedObject = Class(TGSAssetBase)
End;
TGSAssetText = class(TGSAssetObject)
private
protected
FText: String;
function GetAssetType: TGSAssetType; override;
function GetAssetHumanName: TGSAssetString; override;
function GetAssetMemorySize: TGSAssetInt; override;
public
procedure SaveToStream(aStream : TStream); override;
procedure LoadFromStream(aStream : TStream); override;
property Text : String read FText Write FText;
end;
TGSAsset2DMeshedObject = class(TGSAssetObject)
private
protected
const cstHeaderMagicNumber = -42;
cstHeaderSign = 'GSMSH';
cstHeaderV1dot0 = 10;
var
fMesh : TGSRawMesh2D;
fBorders: Vec2sArray; //Raw poly.
FVersion: Integer;
function GetAssetType: TGSAssetType; override;
function GetAssetHumanName: TGSAssetString; override;
function GetAssetMemorySize: TGSAssetInt; override;
//Load.
procedure internalReadAdvMesh(aStream : TStream); //Border and mesh.
procedure internalWriteAdvMesh(aStream : TStream); //Border and mesh.
procedure internalReadRawMesh(aStream : TStream); //Mesh only.
procedure internalReadRawPolys(aStream : TStream); //Borders only.
procedure internalWriteRawMesh(aStream : TStream); //Mesh only
procedure internalWriteRawPolys(aStream : TStream); //Borders only.
public
Constructor Create; override;
Destructor Destroy; override;
procedure SaveToStream(aStream : TStream); override;
procedure LoadFromStream(aStream : TStream); override;
procedure SaveToStreamMeshPart(aStream : TStream);
procedure LoadFromStreamMeshPart(aStream : TStream);
procedure BordersCopyFrom(var aSource : Vec2sArray);
property MeshData : TGSRawMesh2D read fMesh;
property Borders : Vec2sArray read fBorders write fBorders;
property Version : Integer read FVersion;
end;
TGSAssetShapeMesh = class(TGSAsset2DMeshedObject)
end;
TGSAssetSquareMesh = Class(TGSAssetShapeMesh)
private
FSide: TVecType;
procedure SetSide(const Value: TVecType);
protected
public
Constructor Create; override;
property Side : TVecType read FSide write SetSide;
end;
TGSAssetRoundedShapeMesh = class(TGSAssetShapeMesh)
private
FRadius: TVecType;
FSubdi: Uint32;
FPreShapeModelEnabled: Boolean;
FPreShapedModel: TGSShape2dType;
procedure SetRadius(const Value: TVecType);
procedure SetSubdi(const Value: Uint32);
procedure InternalBuild;
procedure SetPreShapeModelEnabled(const Value: Boolean);
procedure SetPreShapedModel(const Value: TGSShape2dType);
protected
public
Constructor Create; override;
property PreShapedModelEnabled : Boolean read FPreShapeModelEnabled write SetPreShapeModelEnabled;
property PreShapedModel : TGSShape2dType read FPreShapedModel write SetPreShapedModel;
property Radius : TVecType read FRadius write SetRadius;
property Subdivision : Uint32 read FSubdi Write SetSubdi;
end;
TGSAssetAtlas = Class(TGSAssetObject)
protected
names : TList_UTF8String;
zones : array of vec4;
function GetAssetType: TGSAssetType; override;
function GetAssetHumanName: TGSAssetString; override;
function GetAssetMemorySize: TGSAssetInt; override;
public
procedure SaveToStream(aStream : TStream); override;
procedure LoadFromStream(aStream : TStream); override;
Constructor Create; override;
Destructor Destroy; override;
procedure clear;
procedure addZone(x,y,w,h : TVecType; name : TGSAssetString);
End;
TGSAssetImageFormat = (aifRawARGB32BitFormat);
TGSAssetImageContainer = class(TGSAssetObject)
private
protected
FImageDesc: TGSAssetString;
FImageSource: TGSAssetString;
FBinaryData: TStream;
FImageFormat: TGSAssetImageFormat;
FWidth: Uint32;
FHeight: Uint32;
function GetAssetType: TGSAssetType; override;
function GetAssetHumanName: TGSAssetString; override;
function GetAssetMemorySize: TGSAssetInt; override;
public
procedure SaveToStream(aStream : TStream); override;
procedure LoadFromStream(aStream : TStream); override;
Constructor Create; override;
Destructor Destroy; override;
property ImageFormat : TGSAssetImageFormat read FImageFormat write FImageFormat;
property BinaryData : TStream read FBinaryData;
property ImageDescription : TGSAssetString read FImageDesc write FImageDesc;
property AssetImageSource : TGSAssetString read FImageSource write FImageSource;
property Width : Uint32 read FWidth write FWidth;
property Height : Uint32 read FHeight write FHeight;
end;
//Composed based.
TGSAssetComposed = class(TGSAssetComposedObject)
private
function GetAsset(Index: UInt32): TGSAssetObject;
function GetAssetCount: UInt32;
function GetAssetTotalMemory: TGSAssetInt;
protected
FComposition : TList_ObjectArray;
function GetAssetType: TGSAssetType; override;
function GetAssetMemorySize: TGSAssetInt; override;
public
procedure SaveToStream(aStream : TStream); override;
procedure LoadFromStream(aStream : TStream); override;
Constructor Create; override;
Destructor Destroy; override;
procedure addAsset(asset : TGSAssetObject);
property Assets[Index : UInt32] : TGSAssetObject read GetAsset;
property AssetsCount : UInt32 read GetAssetCount;
property AssetsTotalMemory : TGSAssetInt read GetAssetTotalMemory;
end;
///
///
/// COMPOSED OBJECT
///
///
///
///
/// Atlas Image source.
///
TGSAssetAtlasImage = class(TGSAssetComposed)
protected
FImage: TGSAssetImageContainer;
FAtlas: TGSAssetAtlas;
function GetAssetHumanName: TGSAssetString; override;
public
Constructor Create; override;
property Image : TGSAssetImageContainer read FImage; //Original image.
property Atlas :TGSAssetAtlas read FAtlas; //Atlas
end;
///
/// Image source.
///
TGSAssetImageSource = Class(TGSAssetAtlasImage)
protected
FShape: TGSAssetSquareMesh;
function GetAssetHumanName: TGSAssetString; override;
public
Constructor Create; override;
property Shape : TGSAssetSquareMesh read FShape write FShape;
End;
var
GSAssetObjectClass : array of TClass;
implementation
procedure RegisterGSAssetObject(objectClass : TClass);
var i : Integer;
begin
i := length(GSAssetObjectClass);
setlength(GSAssetObjectClass,i+1);
GSAssetObjectClass[i] := objectClass;
end;
function getGSAssetObjectImplementationFromName(_Classname : String) : TGSAssetObject;
var i : integer;
c : String;
begin
result := nil;
c := UpperCase(_Classname);
for i:= 0 to Length(GSAssetObjectClass)-1 do
if UpperCase(GSAssetObjectClass[i].ClassName) = c then
begin
result := TGSAssetObject(GSAssetObjectClass[i].Create);
break
end;
assert(assigned(result));
end;
{ TGSAsset }
{ TGSAssetBase }
constructor TGSAssetBase.Create;
begin
inherited Create;
CreateGUID(FID);
end;
function TGSAssetBase.GetAssetID: TGSAssetString;
begin
result := FID.ToString;
end;
{ TGSAssetAtlas }
procedure TGSAssetAtlas.addZone(x, y, w, h: TVecType; name: TGSAssetString);
var l : int32;
begin
l := length(zones);
SetLength(zones,l+1);
zones[l].Left := x;
zones[l].top := y;
zones[l].right := x+w;
zones[l].bottom := y+h;
names.Add(UTF8String(name));
end;
procedure TGSAssetAtlas.clear;
begin
SetLength(zones,0);
names.Clear;
end;
constructor TGSAssetAtlas.Create;
begin
inherited create;
names :=TList_UTF8String.Create(false);
clear;
end;
destructor TGSAssetAtlas.Destroy;
begin
clear;
freeAndNil(names);
inherited;
end;
function TGSAssetAtlas.GetAssetHumanName: TGSAssetString;
begin
result := 'Atlas - rect geo location (zone)';
end;
function TGSAssetAtlas.GetAssetMemorySize: TGSAssetInt;
begin
result := length(zones) * SizeOf(vec4);
end;
function TGSAssetAtlas.GetAssetType: TGSAssetType;
begin
result := TGSAssetType.gsatAtlas;
end;
procedure TGSAssetAtlas.LoadFromStream(aStream: TStream);
var i, fz : Int32;
begin
fz := ReadInt32(aStream);
for i := 0 to fz-1 do
names.Add(UTF8String(ReadString(aStream)));
fz := ReadInt32(aStream);
SetLength(zones,fz);
for i := 0 to Length(zones)-1 do
begin
zones[i].x := ReadDouble(aStream);
zones[i].y := ReadDouble(aStream);
zones[i].z := ReadDouble(aStream);
zones[i].w := ReadDouble(aStream);
end;
end;
procedure TGSAssetAtlas.SaveToStream(aStream: TStream);
var i : integer;
begin
WriteInt32(aStream,names.Count);
for I := 0 to names.Count-1 do
WriteString(aStream,String(names[i]));
WriteInt32(aStream,Length(zones));
for i := 0 to length(zones)-1 do
begin
WriteDouble(aStream,zones[i].x);
WriteDouble(aStream,zones[i].y);
WriteDouble(aStream,zones[i].z);
WriteDouble(aStream,zones[i].w);
end;
end;
{ TGSAssetComposed }
procedure TGSAssetComposed.addAsset(asset: TGSAssetObject);
begin
end;
constructor TGSAssetComposed.Create;
begin
inherited create;
FComposition := TList_ObjectArray.Create(True);
end;
destructor TGSAssetComposed.Destroy;
begin
FreeAndNil(FComposition);
inherited;
end;
function TGSAssetComposed.GetAsset(Index: UInt32): TGSAssetObject;
begin
Assert(Index<FComposition.Count);
result := TGSAssetObject(FComposition[Index]);
end;
function TGSAssetComposed.GetAssetCount: UInt32;
begin
result := FComposition.Count;
end;
function TGSAssetComposed.GetAssetMemorySize: TGSAssetInt;
begin
result := GetAssetTotalMemory;
end;
function TGSAssetComposed.GetAssetTotalMemory: TGSAssetInt;
var i : integer;
begin
result := 0;
for i := 0 to FComposition.Count-1 do
inc(result,TGSAssetObject(FComposition[i]).AssetMemorySize);
end;
function TGSAssetComposed.GetAssetType: TGSAssetType;
begin
result := TGSAssetType.gsaComposed;
end;
procedure TGSAssetComposed.LoadFromStream(aStream: TStream);
var i,l : Int32;
s : string;
o : TGSAssetObject;
begin
l := ReadInt32(aStream);
for i := 0 to l-1 do
begin
s := ReadString(aStream);
o := getGSAssetObjectImplementationFromName(s);
o.LoadFromStream(aStream);
end;
end;
procedure TGSAssetComposed.SaveToStream(aStream: TStream);
var i : integer;
begin
WriteInt32(aStream,FComposition.Count);
for i := 0 to FComposition.Count-1 do
begin
WriteString(aStream,TGSAssetObject(FComposition[i]).ClassName);
TGSAssetObject(FComposition[i]).SaveToStream(aStream);
end;
end;
{ TGSAssetSquareMesh }
constructor TGSAssetSquareMesh.Create;
begin
inherited create;
Side := 2.0;
end;
procedure TGSAssetSquareMesh.SetSide(const Value: TVecType);
begin
FSide := Value;
FMesh.SetUpQuad(FSide);
end;
{ TGSAssetText }
function TGSAssetText.GetAssetHumanName: TGSAssetString;
begin
result := 'Text (UTF8 text data)'
end;
function TGSAssetText.GetAssetMemorySize: TGSAssetInt;
begin
result := SizeOf(FText);
end;
function TGSAssetText.GetAssetType: TGSAssetType;
begin
result := TGSAssetType.gsatText;
end;
procedure TGSAssetText.LoadFromStream(aStream: TStream);
begin
FText := ReadString(aStream);
end;
procedure TGSAssetText.SaveToStream(aStream: TStream);
begin
WriteString(aStream, FText);
end;
{ TGSAsset2DMeshedObject }
procedure TGSAsset2DMeshedObject.BordersCopyFrom(var aSource: Vec2sArray);
begin
_vect2sArrayCopy(aSource,fBorders);
end;
constructor TGSAsset2DMeshedObject.Create;
begin
inherited;
fMesh := TGSRawMesh2D.Create;
end;
destructor TGSAsset2DMeshedObject.Destroy;
begin
FreeAndNil(fmesh);
inherited;
end;
function TGSAsset2DMeshedObject.GetAssetHumanName: TGSAssetString;
begin
result := '2D Mesh - Raw data (vertices, UVs, indexes)';
end;
function TGSAsset2DMeshedObject.GetAssetMemorySize: TGSAssetInt;
begin
result := length(fmesh.vertices) * sizeof(vec2) +
SizeOf(fmesh.indexes) * sizeof(uint32) +
SizeOf(fmesh.uvs) * sizeof(vec2);
end;
function TGSAsset2DMeshedObject.GetAssetType: TGSAssetType;
begin
result := TGSAssetType.gsatMesh2d;
end;
procedure TGSAsset2DMeshedObject.internalReadRawPolys(aStream : TStream); //Borders.
var i,j : integer;
lpc,luc : Int32;
lindex : Integer;
begin
lpc := ReadInt32(aStream); //Polys count.
lindex := length(fBorders); //Merge compatible.
SetLength(fBorders,lindex+lpc);
for i := 0 to lpc-1 do begin
luc := ReadInt32(aStream); //units count.
SetLength(fBorders[lindex+i],luc);
for j := 0 to luc-1 do begin
fBorders[lindex+i][j].x := ReadDouble(aStream);
fBorders[lindex+i][j].y := ReadDouble(aStream);
end;
end;
end;
procedure TGSAsset2DMeshedObject.internalWriteRawPolys(aStream : TStream); //Borders.
var i,j : integer;
begin
WriteInt32(aStream,length(fBorders));
for i := 0 to length(fBorders)-1 do begin
WriteInt32(aStream,Length(fBorders[i]));
for j := 0 to length(fBorders[i])-1 do begin
WriteDouble(aStream,fBorders[i][j].x);
WriteDouble(aStream,fBorders[i][j].y);
end;
end;
end;
procedure TGSAsset2DMeshedObject.internalWriteRawMesh(aStream: TStream);
var i : integer;
begin
WriteInt32(aStream,Length(fMesh.vertices));
WriteInt32(aStream,Length(fMesh.uvs));
WriteInt32(aStream,Length(fMesh.indexes));
for i := 0 to length(FMesh.vertices)-1 do
begin
WriteDouble(aStream,FMesh.vertices[i].x);
WriteDouble(aStream,FMesh.vertices[i].y);
end;
for i := 0 to length(FMesh.uvs)-1 do
begin
WriteDouble(aStream,FMesh.uvs[i].x);
WriteDouble(aStream,FMesh.uvs[i].y);
end;
for i := 0 to length(FMesh.indexes)-1 do
begin
WriteInt32(aStream,FMesh.indexes[i]);
WriteInt32(aStream,FMesh.indexes[i]);
end;
end;
procedure TGSAsset2DMeshedObject.internalReadRawMesh(aStream: TStream);
var i : integer;
fv,fu,fi : Int32;
lvi, lii : Int32;
begin
fv := ReadInt32(aStream);
fu := ReadInt32(aStream);
fi := ReadInt32(aStream);
lvi := length(fMesh.vertices);
lii := length(fMesh.indexes);
SetLength(fMesh.vertices,lvi+fv);
SetLength(fMesh.uvs,fu);
// SetLength(fMesh.cols,fu);
SetLength(fMesh.indexes,lii+fi);
fBorders := Nil;
for i := 0 to Length(fMesh.vertices)-1 do
begin
fmesh.vertices[lvi+i].x := ReadDouble(aStream);
fmesh.vertices[lvi+i].y := ReadDouble(aStream);
end;
for i := 0 to length(FMesh.uvs)-1 do
begin
fmesh.uvs[i].x := ReadDouble(aStream);
fmesh.uvs[i].y := ReadDouble(aStream);
end;
for i := 0 to length(FMesh.indexes)-1 do
begin
fmesh.indexes[lii+i] := ReadInt32(aStream);
fmesh.indexes[lii+i] := ReadInt32(aStream);
end;
end;
procedure TGSAsset2DMeshedObject.internalReadAdvMesh(aStream: TStream);
begin
//header.
ReadInt32(aStream);
ReadString(aStream);
FVersion := ReadInt32(aStream);
//Payload.
internalReadRawPolys(aStream);
internalReadRawMesh(aStream);
end;
procedure TGSAsset2DMeshedObject.internalWriteAdvMesh(aStream: TStream);
begin
Writeint32(aStream,cstHeaderMagicNumber);
WriteString(aStream,cstHeaderSign);
Writeint32(aStream,cstHeaderV1dot0);
internalWriteRawPolys(aStream);
internalWriteRawMesh(aStream);
end;
procedure TGSAsset2DMeshedObject.LoadFromStream(aStream: TStream);
function IsAssetMeshFileHeader : boolean;
var l : NativeInt;
begin
l := aStream.Position;
FVersion := 10; //Simplest file : Mesh only.
result := (ReadInt32(aStream)= cstHeaderMagicNumber) And (ReadString(aStream) = cstHeaderSign);
aStream.Position := l;
end;
begin
Assert(aStream.size>0);
if IsAssetMeshFileHeader then
internalReadAdvMesh(aStream)
else
raise Exception.Create('TGSAsset2DMeshedObject.LoadFromStream Error : Wrong file type');
end;
procedure TGSAsset2DMeshedObject.SaveToStream(aStream: TStream);
begin
internalWriteAdvMesh(aStream);
end;
procedure TGSAsset2DMeshedObject.LoadFromStreamMeshPart(aStream: TStream);
begin
internalReadRawMesh(aStream);
end;
procedure TGSAsset2DMeshedObject.SaveToStreamMeshPart(aStream: TStream);
begin
internalWriteRawMesh(aStream);
end;
{ TGSAssetImageContainer }
constructor TGSAssetImageContainer.Create;
begin
inherited;
FBinaryData := TMemoryStream.Create;
end;
destructor TGSAssetImageContainer.Destroy;
begin
freeAndNil(FBinaryData);
inherited;
end;
function TGSAssetImageContainer.GetAssetHumanName: TGSAssetString;
begin
result := 'Image - Raw binary data of a image format';
end;
function TGSAssetImageContainer.GetAssetMemorySize: TGSAssetInt;
begin
result := FBinaryData.Size;
end;
function TGSAssetImageContainer.GetAssetType: TGSAssetType;
begin
result := TGSAssetType.gsatImage;
end;
procedure TGSAssetImageContainer.LoadFromStream(aStream: TStream);
begin
FImageDesc := ReadString(aStream);
FImageSource := ReadString(aStream);
FImageFormat := TGSAssetImageFormat(Readbyte(aStream));
FWidth := ReadUint32(aStream);
FHeight := ReadUint32(aStream);
ReadStream(aStream,FBinaryData);
end;
procedure TGSAssetImageContainer.SaveToStream(aStream: TStream);
begin
WriteString(aStream,FImageDesc);
WriteString(aStream,FImageSource);
Writebyte(aStream,Byte(FImageFormat));
WriteUInt32(aStream,FWidth);
WriteUInt32(aStream,FHeight);
WriteStream(aStream,FBinaryData);
end;
{ TGSAssetAtlasImage }
constructor TGSAssetAtlasImage.Create;
begin
inherited;
FImage:= TGSAssetImageContainer.Create;
FAtlas:= TGSAssetAtlas.Create;
FComposition.Add(FImage);
FComposition.Add(FAtlas);
end;
function TGSAssetAtlasImage.GetAssetHumanName: TGSAssetString;
begin
result := 'Image (Image binary source, atlas mapping';
end;
{ TGSAssetImageSource }
constructor TGSAssetImageSource.Create;
begin
inherited Create;
FShape := TGSAssetSquareMesh.Create;
FComposition.Add(FShape);
end;
function TGSAssetImageSource.GetAssetHumanName: TGSAssetString;
begin
result := 'Image (Image binary source, atlas mapping, uv';
end;
{ TGSAssetRoundedShapeMesh }
constructor TGSAssetRoundedShapeMesh.Create;
begin
inherited;
FPreShapedModel := TGSShape2dType.hexa;
FPreShapeModelEnabled := true;
FSubdi := 1;
FRadius := 1;
InternalBuild;
end;
procedure TGSAssetRoundedShapeMesh.InternalBuild;
begin
if FPreShapeModelEnabled then
fMesh.SetShapeType(FPreShapedModel)
else
begin
fmesh.Build_SetRoundShape(FSubdi,FRadius);
end;
end;
procedure TGSAssetRoundedShapeMesh.SetPreShapedModel(const Value: TGSShape2dType);
begin
FPreShapedModel := Value;
InternalBuild;
end;
procedure TGSAssetRoundedShapeMesh.SetPreShapeModelEnabled(const Value: Boolean);
begin
FPreShapeModelEnabled := Value;
InternalBuild;
end;
procedure TGSAssetRoundedShapeMesh.SetRadius(const Value: TVecType);
begin
FRadius := Value;
InternalBuild;
end;
procedure TGSAssetRoundedShapeMesh.SetSubdi(const Value: Uint32);
begin
FSubdi := Value;
if FSubdi<3 then
FSubdi := 3;
InternalBuild;
end;
end.