379 lines
9.8 KiB
ObjectPascal
379 lines
9.8 KiB
ObjectPascal
{
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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 Render64;
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interface
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uses
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Windows, Graphics, ImageMaker,
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Render, xform, Controlpoint;
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type
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TRenderer64 = class(TBaseRenderer)
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private
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oversample: integer;
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BucketWidth, BucketHeight: integer;
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BucketSize: integer;
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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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camX0, camX1, camY0, camY1, // camera bounds
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camW, camH, // camera sizes
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bws, bhs, cosa, sina, rcX, rcY: double;
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ppux, ppuy: extended;
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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 AddPointsToBuckets(const points: TPointsArray);
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procedure AddPointsToBucketsAngle(const points: TPointsArray);
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procedure SetPixels;
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public
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constructor Create; override;
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destructor Destroy; override;
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procedure Render; override;
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function GetImage: TBitmap; override;
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procedure UpdateImage(CP: TControlPoint); override;
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procedure SaveImage(const FileName: String); override;
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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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{ TRenderer64 }
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///////////////////////////////////////////////////////////////////////////////
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constructor TRenderer64.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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destructor TRenderer64.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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procedure TRenderer64.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 TRenderer64.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 TRenderer64.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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corner_x, corner_y, Xsize, Ysize: 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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corner_x := fcp.center[0] - fcp.Width / ppux / 2.0;
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corner_y := fcp.center[1] - fcp.Height / ppuy / 2.0;
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camX0 := corner_x - t0;
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camY0 := corner_y - t1 + shift;
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camX1 := corner_x + fcp.Width / ppux + t2;
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camY1 := corner_y + fcp.Height / ppuy + t3; //+ shift;
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camW := camX1 - camX0;
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if abs(camW) > 0.01 then
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Xsize := 1.0 / camW
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else
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Xsize := 1;
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camH := camY1 - camY0;
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if abs(camH) > 0.01 then
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Ysize := 1.0 / camH
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else
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Ysize := 1;
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bws := (BucketWidth - 0.5) * Xsize;
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bhs := (BucketHeight - 0.5) * Ysize;
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if FCP.FAngle <> 0 then
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begin
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cosa := cos(FCP.FAngle);
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sina := sin(FCP.FAngle);
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rcX := FCP.Center[0]*(1 - cosa) - FCP.Center[1]*sina - camX0;
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rcY := FCP.Center[1]*(1 - cosa) + FCP.Center[0]*sina - camY0;
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end;
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRenderer64.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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function TRenderer64.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 TRenderer64.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 TRenderer64.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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fcp.Prepare;
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRenderer64.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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Bucket: PBucket;
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MapColor: PColorMapColor;
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begin
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for i := SUB_BATCH_SIZE - 1 downto 0 do begin
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// if FStop then Exit;
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px := points[i].x - camX0;
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if (px < 0) or (px > camW) then continue;
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py := points[i].y - camY0;
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if (py < 0) or (py > camH) then continue;
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Bucket := @buckets[Round(bws * px) + Round(bhs * py) * BucketWidth];
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MapColor := @ColorMap[Round(points[i].c * 255)];
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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 TRenderer64.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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Bucket: PBucket;
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MapColor: PColorMapColor;
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begin
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for i := SUB_BATCH_SIZE - 1 downto 0 do begin
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// if FStop then Exit;
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px := points[i].x * cosa + points[i].y * sina + rcX;
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if (px < 0) or (px > camW) then continue;
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py := points[i].y * cosa - points[i].x * sina + rcY;
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if (py < 0) or (py > camH) then continue;
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Bucket := @buckets[Round(bws * px) + Round(bhs * py) * BucketWidth];
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MapColor := @ColorMap[Round(points[i].c * 255)];
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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 TRenderer64.SetPixels;
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var
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i: integer;
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nsamples: Int64;
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nrbatches: Integer;
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points: TPointsArray;
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AddPointsProc: procedure (const points: TPointsArray) of object;
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begin
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// if FileExists('c:\temp\flame.txt') then
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// Deletefile('c:\temp\flame.txt');
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// AssignFile(F, 'c:\temp\flame.txt');
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// Rewrite(F);
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if FCP.FAngle = 0 then
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AddPointsProc := AddPointsToBuckets
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else
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AddPointsProc := AddPointsToBucketsAngle;
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SetLength(Points, SUB_BATCH_SIZE);
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nsamples := Round(sample_density * bucketSize / (oversample * oversample));
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nrbatches := Round(nsamples / (fcp.nbatches * SUB_BATCH_SIZE));
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Randomize;
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for i := 0 to nrbatches do begin
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if FStop then
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Exit;
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if ((i and $F) = 0) then
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if nrbatches > 0 then
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Progress(i / nrbatches)
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else
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Progress(0);
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// generate points
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{$IFDEF TESTVARIANT}
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// if i > 10 then
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// break;
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fcp.Testiterate(SUB_BATCH_SIZE, points);
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{$ELSE}
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{
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case Compatibility of
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0: fcp.iterate_Old(SUB_BATCH_SIZE, points);
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1: fcp.iterateXYC(SUB_BATCH_SIZE, points);
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end;
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}
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fcp.IterateXYC(SUB_BATCH_SIZE, points);
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{$ENDIF}
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// for j := SUB_BATCH_SIZE - 1 downto 0 do
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// Writeln(f, FloatTostr(points[j].x) + #9 + FloatTostr(points[j].y) + #9 + FloatTostr(points[j].c));
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AddPointsProc(points);
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end;
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// closefile(f);
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Progress(1);
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRenderer64.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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SetPixels;
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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 TRenderer64.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 TRenderer64.SaveImage(const FileName: String);
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begin
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FImageMaker.SaveImage(FileName);
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end;
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///////////////////////////////////////////////////////////////////////////////
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end.
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