478 lines
12 KiB
ObjectPascal
478 lines
12 KiB
ObjectPascal
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{
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Flame screensaver Copyright (C) 2002 Ronald Hordijk
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Apophysis Copyright (C) 2001-2004 Mark Townsend
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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}
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unit Render64MT;
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interface
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uses
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Windows, Classes, Graphics,
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Render, Controlpoint, ImageMaker;
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type
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TPixelRenderThread = class(TThread)
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private
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fcp: TControlPoint;
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points: TPointsArray;
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public
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nrbatches: integer;
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batchcounter: Pinteger;
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BucketWidth: Int64;
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BucketHeight: Int64;
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bounds: array[0..3] of extended;
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size: array[0..1] of extended;
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Buckets: PBucketArray;
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ColorMap: TColorMapArray;
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CriticalSection: TRTLCriticalSection;
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constructor Create(cp: TControlPoint);
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procedure Execute; override;
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procedure AddPointsToBuckets(const points: TPointsArray); overload;
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procedure AddPointsToBucketsAngle(const points: TPointsArray); overload;
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end;
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type
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TRenderer64MT = class(TBaseRenderer)
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private
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oversample: Int64;
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batchcounter: Integer;
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FNrBatches: Integer;
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BucketWidth: Int64;
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BucketHeight: Int64;
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BucketSize: Int64;
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gutter_width: Integer;
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max_gutter_width: Integer;
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sample_density: extended;
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Buckets: TBucketArray;
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ColorMap: TColorMapArray;
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bounds: array[0..3] of extended;
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size: array[0..1] of extended;
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ppux, ppuy: extended;
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FNrOfTreads: integer;
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WorkingThreads: array of TPixelRenderThread;
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CriticalSection: TRTLCriticalSection;
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FImageMaker: TImageMaker;
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procedure InitValues;
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procedure InitBuffers;
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procedure ClearBuffers;
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procedure ClearBuckets;
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procedure CreateColorMap;
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procedure CreateCamera;
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procedure SetPixelsMT;
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procedure SetNrOfTreads(const Value: integer);
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function NewThread: TPixelRenderThread;
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public
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constructor Create; override;
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destructor Destroy; override;
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function GetImage: TBitmap; override;
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procedure Stop; override;
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procedure Render; override;
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procedure UpdateImage(CP: TControlPoint); override;
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procedure SaveImage(const FileName: String); override;
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property NrOfTreads: integer
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read FNrOfTreads
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write SetNrOfTreads;
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end;
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implementation
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uses
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Math, Sysutils;
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{ TRenderer64MT }
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///////////////////////////////////////////////////////////////////////////////
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procedure TRenderer64MT.ClearBuckets;
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var
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i: integer;
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begin
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for i := 0 to BucketSize - 1 do begin
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buckets[i].Red := 0;
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buckets[i].Green := 0;
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buckets[i].Blue := 0;
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buckets[i].Count := 0;
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end;
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRenderer64MT.ClearBuffers;
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begin
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ClearBuckets;
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRenderer64MT.CreateCamera;
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var
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scale: double;
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t0, t1: double;
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t2, t3: double;
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corner0, corner1: double;
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shift: Integer;
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begin
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scale := power(2, fcp.zoom);
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sample_density := fcp.sample_density * scale * scale;
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ppux := fcp.pixels_per_unit * scale;
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ppuy := fcp.pixels_per_unit * scale;
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// todo field stuff
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shift := 0;
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t0 := (gutter_width) / (oversample * ppux);
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t1 := (gutter_width) / (oversample * ppuy);
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t2 := (2 * max_gutter_width - gutter_width) / (oversample * ppux);
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t3 := (2 * max_gutter_width - gutter_width) / (oversample * ppuy);
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corner0 := fcp.center[0] - fcp.Width / ppux / 2.0;
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corner1 := fcp.center[1] - fcp.Height / ppuy / 2.0;
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bounds[0] := corner0 - t0;
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bounds[1] := corner1 - t1 + shift;
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bounds[2] := corner0 + fcp.Width / ppux + t2;
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bounds[3] := corner1 + fcp.Height / ppuy + t3; //+ shift;
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if abs(bounds[2] - bounds[0]) > 0.01 then
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size[0] := 1.0 / (bounds[2] - bounds[0])
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else
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size[0] := 1;
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if abs(bounds[3] - bounds[1]) > 0.01 then
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size[1] := 1.0 / (bounds[3] - bounds[1])
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else
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size[1] := 1;
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRenderer64MT.CreateColorMap;
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var
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i: integer;
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begin
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{$IFDEF TESTVARIANT}
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for i := 0 to 255 do begin
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ColorMap[i].Red := i;
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ColorMap[i].Green := i;
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ColorMap[i].Blue := i;
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// cmap[i][3] := fcp.white_level;
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end;
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{$ELSE}
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for i := 0 to 255 do begin
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ColorMap[i].Red := (fcp.CMap[i][0] * fcp.white_level) div 256;
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ColorMap[i].Green := (fcp.CMap[i][1] * fcp.white_level) div 256;
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ColorMap[i].Blue := (fcp.CMap[i][2] * fcp.white_level) div 256;
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// cmap[i][3] := fcp.white_level;
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end;
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{$ENDIF}
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end;
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///////////////////////////////////////////////////////////////////////////////
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destructor TRenderer64MT.Destroy;
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begin
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FImageMaker.Free;
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inherited;
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end;
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///////////////////////////////////////////////////////////////////////////////
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function TRenderer64MT.GetImage: TBitmap;
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begin
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Result := FImageMaker.GetImage;
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRenderer64MT.InitBuffers;
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const
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MaxFilterWidth = 25;
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begin
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oversample := fcp.spatial_oversample;
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max_gutter_width := (MaxFilterWidth - oversample) div 2;
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gutter_width := (FImageMaker.GetFilterSize - oversample) div 2;
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BucketHeight := oversample * fcp.Height + 2 * max_gutter_width;
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Bucketwidth := oversample * fcp.width + 2 * max_gutter_width;
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BucketSize := BucketWidth * BucketHeight;
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if high(buckets) <> (BucketSize - 1) then begin
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SetLength(buckets, BucketSize);
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end;
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// share the buffer with imagemaker
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FImageMaker.SetBucketData(Buckets, BucketWidth);
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRenderer64MT.InitValues;
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begin
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InitBuffers;
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CreateCamera;
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CreateColorMap;
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRenderer64MT.SetPixelsMT;
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var
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i: integer;
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nsamples: Int64;
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begin
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nsamples := Round(sample_density * bucketSize / (oversample * oversample));
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FNrBatches := Round(nsamples / (fcp.nbatches * SUB_BATCH_SIZE));
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batchcounter := 0;
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Randomize;
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InitializeCriticalSection(CriticalSection);
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SetLength(WorkingThreads, NrOfTreads);
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for i := 0 to NrOfTreads - 1 do
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WorkingThreads[i] := NewThread;
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while (Not FStop) and (batchcounter < FNrBatches) do begin
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if batchcounter > 0 then
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Progress(batchcounter / FNrBatches)
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else
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Progress(0);
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sleep(200)
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end;
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DeleteCriticalSection(CriticalSection);
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Progress(1);
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRenderer64MT.Stop;
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var
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i: integer;
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begin
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inherited;
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for i := 0 to NrOfTreads - 1 do
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WorkingThreads[i].Terminate;
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end;
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///////////////////////////////////////////////////////////////////////////////
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constructor TRenderer64MT.Create;
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begin
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inherited Create;
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FImageMaker := TImageMaker.Create;
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRenderer64MT.Render;
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begin
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FStop := False;
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FImageMaker.SetCP(FCP);
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FImageMaker.Init;
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InitValues;
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ClearBuffers;
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SetPixelsMT;
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if not FStop then begin
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FImageMaker.OnProgress := OnProgress;
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FImageMaker.CreateImage;
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end;
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRenderer64MT.UpdateImage(CP: TControlPoint);
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begin
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FCP.background := cp.background;
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FCP.spatial_filter_radius := cp.spatial_filter_radius;
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FCP.gamma := cp.Gamma;
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FCP.vibrancy := cp.vibrancy;
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FCP.contrast := cp.contrast;
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FCP.brightness := cp.brightness;
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FImageMaker.SetCP(FCP);
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FImageMaker.Init;
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FImageMaker.OnProgress := OnProgress;
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FImageMaker.CreateImage;
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRenderer64MT.SetNrOfTreads(const Value: integer);
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begin
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FNrOfTreads := Value;
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end;
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///////////////////////////////////////////////////////////////////////////////
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function TRenderer64MT.NewThread: TPixelRenderThread;
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begin
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Result := TPixelRenderThread.Create(fcp);
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// Result.OnTerminate := OnThreadTerminated;
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Result.BucketWidth := BucketWidth;
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Result.BucketHeight := BucketHeight;
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Result.size[0] := size[0];
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Result.size[1] := size[1];
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Result.bounds[0] := Bounds[0];
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Result.bounds[1] := Bounds[1];
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Result.bounds[2] := Bounds[2];
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Result.bounds[3] := Bounds[3];
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Result.ColorMap := colorMap;
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Result.Buckets := @Buckets;
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Result.CriticalSection := CriticalSection;
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Result.Nrbatches := FNrBatches;
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Result.batchcounter := @batchcounter;
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Result.Resume;
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end;
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{ PixelRenderThread }
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///////////////////////////////////////////////////////////////////////////////
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procedure TPixelRenderThread.AddPointsToBuckets(const points: TPointsArray);
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var
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i: integer;
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px, py: double;
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bws, bhs: double;
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bx, by: double;
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wx, wy: double;
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// R: double;
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// V1, v2, v3: integer;
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Bucket: PBucket;
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MapColor: PColorMapColor;
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begin
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bws := (BucketWidth - 0.5) * size[0];
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bhs := (BucketHeight - 0.5) * size[1];
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bx := bounds[0];
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by := bounds[1];
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wx := bounds[2] - bounds[0];
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wy := bounds[3] - bounds[1];
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for i := SUB_BATCH_SIZE - 1 downto 0 do begin
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px := points[i].x - bx;
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py := points[i].y - by;
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if ((px < 0) or (px > wx) or
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(py < 0) or (py > wy)) then
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continue;
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MapColor := @ColorMap[Round(points[i].c * 255)];
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Bucket := @TbucketArray(buckets^)[Round(bws * px) + Round(bhs * py) * BucketWidth];
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Inc(Bucket.Red, MapColor.Red);
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Inc(Bucket.Green, MapColor.Green);
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Inc(Bucket.Blue, MapColor.Blue);
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Inc(Bucket.Count);
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end;
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TPixelRenderThread.AddPointsToBucketsAngle(const points: TPointsArray);
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var
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i: integer;
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px, py: double;
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ca,sa: double;
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nx, ny: double;
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bws, bhs: double;
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bx, by: double;
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wx, wy: double;
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Bucket: PBucket;
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MapColor: PColorMapColor;
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begin
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bws := (BucketWidth - 0.5) * size[0];
|
||
|
|
bhs := (BucketHeight - 0.5) * size[1];
|
||
|
|
bx := bounds[0];
|
||
|
|
by := bounds[1];
|
||
|
|
wx := bounds[2] - bounds[0];
|
||
|
|
wy := bounds[3] - bounds[1];
|
||
|
|
|
||
|
|
ca := cos(FCP.FAngle);
|
||
|
|
sa := sin(FCP.FAngle);
|
||
|
|
|
||
|
|
for i := SUB_BATCH_SIZE - 1 downto 0 do begin
|
||
|
|
px := points[i].x - FCP.Center[0];
|
||
|
|
py := points[i].y - FCP.Center[1];
|
||
|
|
|
||
|
|
nx := px * ca + py * sa;
|
||
|
|
ny := -px * sa + py * ca;
|
||
|
|
|
||
|
|
px := nx + FCP.Center[0] - bx;
|
||
|
|
py := ny + FCP.Center[1] - by;
|
||
|
|
|
||
|
|
if ((px < 0) or (px > wx) or
|
||
|
|
(py < 0) or (py > wy)) then
|
||
|
|
continue;
|
||
|
|
|
||
|
|
MapColor := @ColorMap[Round(points[i].c * 255)];
|
||
|
|
Bucket := @TbucketArray(buckets^)[Round(bws * px) + Round(bhs * py) * BucketWidth];
|
||
|
|
|
||
|
|
Inc(Bucket.Red, MapColor.Red);
|
||
|
|
Inc(Bucket.Green, MapColor.Green);
|
||
|
|
Inc(Bucket.Blue, MapColor.Blue);
|
||
|
|
Inc(Bucket.Count);
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
|
||
|
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
constructor TPixelRenderThread.Create(cp: TControlPoint);
|
||
|
|
begin
|
||
|
|
inherited Create(True);
|
||
|
|
Self.FreeOnTerminate := True;
|
||
|
|
|
||
|
|
fcp := cp;
|
||
|
|
|
||
|
|
SetLength(Points, SUB_BATCH_SIZE);
|
||
|
|
end;
|
||
|
|
|
||
|
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
procedure TPixelRenderThread.Execute;
|
||
|
|
begin
|
||
|
|
inherited;
|
||
|
|
|
||
|
|
// while true do begin
|
||
|
|
while (not Terminated) and (batchcounter^ < Nrbatches) do begin
|
||
|
|
fcp.iterateXYC(SUB_BATCH_SIZE, points);
|
||
|
|
try
|
||
|
|
EnterCriticalSection(CriticalSection);
|
||
|
|
|
||
|
|
if FCP.FAngle = 0 then
|
||
|
|
AddPointsToBuckets(Points)
|
||
|
|
else
|
||
|
|
AddPointsToBucketsAngle(Points);
|
||
|
|
|
||
|
|
Inc(batchcounter^);
|
||
|
|
finally
|
||
|
|
LeaveCriticalSection(CriticalSection);
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
|
||
|
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
procedure TRenderer64MT.SaveImage(const FileName: String);
|
||
|
|
begin
|
||
|
|
FImageMaker.SaveImage(FileName);
|
||
|
|
end;
|
||
|
|
|
||
|
|
end.
|
||
|
|
|