137 lines
3.3 KiB
Plaintext
137 lines
3.3 KiB
Plaintext
(*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* http://www.opensource.org/licenses/cddl1.php.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* http://www.opensource.org/licenses/cddl1.php. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying * information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Portions Copyright 2007 Andreas Schneider
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*)
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unit UTexture;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, Imaging, ImagingTypes, ImagingClasses, UMulBlock, UGenericIndex;
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type
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TTexture = class(TMulBlock)
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constructor Create(AData: TStream; AIndex: TGenericIndex); overload;
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constructor Create(AExtra: Integer); overload;
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destructor Destroy; override;
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function Clone: TTexture; override;
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function GetSize: Integer; override;
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procedure Write(AData: TStream); override;
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procedure RefreshBuffer;
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protected
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FGraphic: TSingleImage;
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FBuffer: TStream;
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FExtra: Integer;
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public
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property Graphic: TSingleImage read FGraphic;
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property Buffer: TStream read FBuffer;
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property Extra: Integer read FExtra write FExtra;
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end;
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implementation
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constructor TTexture.Create(AData: TStream; AIndex: TGenericIndex);
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var
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size: Integer;
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begin
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FExtra := AIndex.Various;
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if FExtra = 0 then
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size := 64
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else
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size := 128;
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FGraphic := TSingleImage.CreateFromParams(size, size, ifX1R5G5B5);
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if assigned(AData) then
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begin
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AData.Position := AIndex.Lookup;
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AData.Read(FGraphic.Bits^, size * size * 2);
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end;
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FGraphic.Format := ifX8R8G8B8;
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end;
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constructor TTexture.Create(AExtra: Integer);
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var
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size: Integer;
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begin
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FExtra := AExtra;
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if AExtra = 0 then
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size := 64
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else
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size := 128;
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FGraphic := TSingleImage.CreateFromParams(size, size, ifX8R8G8B8);
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FBuffer := TMemoryStream.Create;
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end;
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destructor TTexture.Destroy;
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begin
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if FGraphic <> nil then FGraphic.Free;
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if FBuffer <> nil then FBuffer.Free;
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inherited;
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end;
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function TTexture.Clone: TTexture;
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begin
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Result := TTexture.Create(FExtra);
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Result.FGraphic.Assign(Self.Graphic);
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end;
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procedure TTexture.Write(AData: TStream);
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begin
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FBuffer.Position := 0;
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AData.CopyFrom(FBuffer, FBuffer.Size);
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end;
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function TTexture.GetSize: Integer;
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begin
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RefreshBuffer;
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Result := FBuffer.Size
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end;
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procedure TTexture.RefreshBuffer;
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var
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argbGraphic: TSingleImage;
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begin
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argbGraphic := TSingleImage.CreateFromImage(FGraphic);
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argbGraphic.Format := ifX1R5G5B5;
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FBuffer.Size := 0;
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if (argbGraphic.Height > 0) and (argbGraphic.Width > 0) then
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begin
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if (argbGraphic.Height < 128) or (argbGraphic.Width < 128) then
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begin
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FExtra := 0;
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argbGraphic.Resize(64, 64, rfNearest);
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end else
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begin
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FExtra := 1;
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argbGraphic.Resize(128, 128, rfNearest);
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end;
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FBuffer.Write(argbGraphic.Bits^, argbGraphic.Height * argbGraphic.Width * 2);
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end;
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argbGraphic.Free;
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end;
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end.
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