CentrED/UOLib/ULight.pas

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(*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at
* http://www.opensource.org/licenses/cddl1.php.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at
* http://www.opensource.org/licenses/cddl1.php. If applicable,
* add the following below this CDDL HEADER, with the fields enclosed
* by brackets "[]" replaced with your own identifying * information:
* Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
*
* Portions Copyright 2009 Andreas Schneider
*)
unit ULight;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, Imaging, ImagingClasses, ImagingTypes, UMulBlock,
UGenericIndex;
type
{ TLight }
TLight = class(TMulBlock)
constructor Create(AData: TStream; AIndex: TGenericIndex);
destructor Destroy; override;
function Clone: TLight; override;
function GetSize: Integer; override;
procedure Write(AData: TStream); override;
protected
FGraphic: TSingleImage;
public
property Graphic: TSingleImage read FGraphic;
end;
implementation
{ TLight }
constructor TLight.Create(AData: TStream; AIndex: TGenericIndex);
var
buffer: TMemoryStream;
Width, Height: Word;
color: Byte;
color32: TColor32Rec;
x, y: Integer;
begin
if (AIndex <> nil) and (AIndex.Lookup > -1) and (AIndex.Size > 0) then
begin
Width := word(AIndex.Various shr 16);
Height := AIndex.Various and $FFFF;
FGraphic := TSingleImage.CreateFromParams(Width, Height, ifA8R8G8B8);
if AData <> nil then
begin
AData.Position := AIndex.Lookup;
buffer := TMemoryStream.Create;
buffer.CopyFrom(AData, AIndex.Size);
buffer.Position := 0;
for y := 0 to Height - 1 do
for x := 0 to Width - 1 do
begin
buffer.Read(color, SizeOf(byte));
color32.R := color * 8;
color32.G := color32.R;
color32.B := color32.R;
if color > 0 then
color32.A := 255
else
color32.A := 0;
PColor32(FGraphic.PixelPointers[x, y])^ := color32.Color;
end;
buffer.Free;
end;
end;
if FGraphic = nil then
FGraphic := TSingleImage.CreateFromParams(0, 0, ifA8R8G8B8);
end;
destructor TLight.Destroy;
begin
FreeAndNil(FGraphic);
inherited Destroy;
end;
function TLight.Clone: TLight;
begin
Result := TLight.Create(nil, nil);
Result.Graphic.Assign(FGraphic);
end;
function TLight.GetSize: Integer;
begin
Result := 0;
raise Exception.Create('Not implemented: TLight.GetSize');
end;
procedure TLight.Write(AData: TStream);
begin
raise Exception.Create('Not implemented: TLight.Write');
end;
end.