Create transparent images
And moved to one unit
This commit is contained in:
ronaldhordijk
@ -22,35 +22,11 @@ interface
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uses
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Windows, Graphics,
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Render, Controlpoint;
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type
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TOnProgress = procedure(prog: double) of object;
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type
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TColorMapColor = Record
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Red : Int64;
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Green: Int64;
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Blue : Int64;
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// Count: Integer;
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end;
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PColorMapColor = ^TColorMapColor;
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TColorMapArray = array[0..255] of TColorMapColor;
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TBucket = Record
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Red : Int64;
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Green: Int64;
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Blue : Int64;
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Count: Int64;
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end;
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PBucket = ^TBucket;
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TBucketArray = array of TBucket;
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Render, Controlpoint, ImageMaker;
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type
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TRendererMM64 = class(TBaseRenderer)
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private
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bm: TBitmap;
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oversample: Integer;
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filter_width: Integer;
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filter: array of array of extended;
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@ -67,24 +43,16 @@ type
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Buckets: TBucketArray;
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ColorMap: TColorMapArray;
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bg: array[0..2] of extended;
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vib_gam_n: Integer;
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vibrancy: double;
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gamma: double;
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bounds: array[0..3] of extended;
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size: array[0..1] of extended;
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FRotationCenter: array[0..1] of extended;
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ppux, ppuy: extended;
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nrSlices: int64;
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Slice: int64;
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procedure CreateFilter;
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procedure NormalizeFilter;
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FImageMaker: TImageMaker;
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procedure InitValues;
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procedure InitBuffers;
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procedure InitBitmap(w: Integer = 0; h: Integer = 0);
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procedure ClearBuffers;
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procedure ClearBuckets;
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procedure CreateColorMap;
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@ -94,8 +62,6 @@ type
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procedure AddPointsToBucketsAngle(const points: TPointsArray); overload;
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procedure SetPixels;
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procedure CreateBMFromBuckets(YOffset: Integer = 0);
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protected
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function GetSlice: integer; override;
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function GetNrSlices: integer; override;
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@ -105,6 +71,7 @@ type
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destructor Destroy; override;
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function GetImage: TBitmap; override;
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procedure SaveImage(const FileName: String); override;
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procedure Render; override;
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@ -181,45 +148,10 @@ begin
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end;
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRendererMM64.CreateFilter;
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var
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i, j: integer;
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fw: integer;
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adjust: double;
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ii, jj: double;
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begin
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oversample := fcp.spatial_oversample;
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fw := Trunc(2.0 * FILTER_CUTOFF * oversample * fcp.spatial_filter_radius);
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filter_width := fw + 1;
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// make sure it has same parity as oversample
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if odd(filter_width + oversample) then
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inc(filter_width);
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if (fw > 0.0) then
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adjust := (1.0 * FILTER_CUTOFF * filter_width) / fw
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else
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adjust := 1.0;
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setLength(filter, filter_width, filter_width);
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for i := 0 to filter_width - 1 do begin
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for j := 0 to filter_width - 1 do begin
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ii := ((2.0 * i + 1.0)/ filter_width - 1.0) * adjust;
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jj := ((2.0 * j + 1.0)/ filter_width - 1.0) * adjust;
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filter[i, j] := exp(-2.0 * (ii * ii + jj * jj));
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end;
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end;
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Normalizefilter;
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end;
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///////////////////////////////////////////////////////////////////////////////
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destructor TRendererMM64.Destroy;
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begin
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if assigned(bm) then
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bm.Free;
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FImageMaker.Free;
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inherited;
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end;
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@ -227,13 +159,14 @@ end;
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///////////////////////////////////////////////////////////////////////////////
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function TRendererMM64.GetImage: TBitmap;
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begin
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Result := bm;
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Result := FImageMaker.GetImage;
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRendererMM64.InitBuffers;
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begin
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gutter_width := (filter_width - oversample) div 2;
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oversample := fcp.spatial_oversample;
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gutter_width := (FImageMaker.GetFilterSize - oversample) div 2;
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BucketHeight := oversample * image_height + 2 * gutter_width;
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Bucketwidth := oversample * image_width + 2 * gutter_width;
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BucketSize := BucketWidth * BucketHeight;
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@ -241,6 +174,9 @@ begin
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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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@ -249,35 +185,11 @@ begin
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image_height := fcp.Height;
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image_Width := fcp.Width;
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CreateFilter;
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CreateCamera;
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InitBuffers;
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CreateColorMap;
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vibrancy := 0;
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gamma := 0;
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vib_gam_n := 0;
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bg[0] := 0;
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bg[1] := 0;
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bg[2] := 0;
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRendererMM64.NormalizeFilter;
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var
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i, j: integer;
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t: double;
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begin
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t := 0;
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for i := 0 to filter_width - 1 do
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for j := 0 to filter_width - 1 do
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t := t + filter[i, j];
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for i := 0 to filter_width - 1 do
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for j := 0 to filter_width - 1 do
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filter[i, j] := filter[i, j] / t;
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end;
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///////////////////////////////////////////////////////////////////////////////
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@ -413,183 +325,13 @@ begin
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Progress(1);
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRendererMM64.CreateBMFromBuckets(YOffset: Integer);
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var
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i, j: integer;
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alpha: double;
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// r,g,b: double;
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ai, ri, gi, bi: Integer;
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bgtot: Integer;
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ls: double;
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ii, jj: integer;
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fp: array[0..3] of double;
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Row: PLongintArray;
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vib, notvib: Integer;
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bgi: array[0..2] of Integer;
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bucketpos: Integer;
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filterValue: double;
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filterpos: Integer;
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lsa: array[0..1024] of double;
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var
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k1, k2: double;
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area: double;
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begin
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if fcp.gamma = 0 then
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gamma := fcp.gamma
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else
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gamma := 1 / fcp.gamma;
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vib := round(fcp.vibrancy * 256.0);
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notvib := 256 - vib;
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bgi[0] := round(fcp.background[0]);
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bgi[1] := round(fcp.background[1]);
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bgi[2] := round(fcp.background[2]);
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bgtot := RGB(bgi[2], bgi[1], bgi[0]);
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k1 := (fcp.Contrast * BRIGHT_ADJUST * fcp.brightness * 268 * PREFILTER_WHITE) / 256.0;
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area := image_width * image_height / (ppux * ppuy);
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k2 := (oversample * oversample) / (fcp.Contrast * area * fcp.White_level * sample_density);
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lsa[0] := 0;
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for i := 1 to 1024 do begin
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lsa[i] := (k1 * log10(1 + fcp.White_level * i * k2)) / (fcp.White_level * i);
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end;
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if filter_width > 1 then begin
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for i := 0 to BucketWidth * BucketHeight - 1 do begin
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if Buckets[i].count = 0 then
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Continue;
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ls := lsa[Min(1023, Buckets[i].Count)];
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Buckets[i].Red := Round(Buckets[i].Red * ls);
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Buckets[i].Green := Round(Buckets[i].Green * ls);
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Buckets[i].Blue := Round(Buckets[i].Blue * ls);
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Buckets[i].Count := Round(Buckets[i].Count * ls);
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end;
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end;
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ls := 0;
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ai := 0;
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bucketpos := 0;
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for i := 0 to Image_Height - 1 do begin
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if FStop then
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Break;
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Progress(i / Image_Height);
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Row := PLongintArray(bm.scanline[YOffset + i]);
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for j := 0 to Image_Width - 1 do begin
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if filter_width > 1 then begin
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fp[0] := 0;
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fp[1] := 0;
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fp[2] := 0;
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fp[3] := 0;
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for ii := 0 to filter_width - 1 do begin
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for jj := 0 to filter_width - 1 do begin
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filterValue := filter[ii, jj];
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filterpos := bucketpos + ii * BucketWidth + jj;
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fp[0] := fp[0] + filterValue * Buckets[filterpos].Red;
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fp[1] := fp[1] + filterValue * Buckets[filterpos].Green;
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fp[2] := fp[2] + filterValue * Buckets[filterpos].Blue;
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fp[3] := fp[3] + filterValue * Buckets[filterpos].Count;
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end;
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end;
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fp[0] := fp[0] / PREFILTER_WHITE;
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fp[1] := fp[1] / PREFILTER_WHITE;
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fp[2] := fp[2] / PREFILTER_WHITE;
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fp[3] := fcp.white_level * fp[3] / PREFILTER_WHITE;
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end else begin
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ls := lsa[Min(1023, Buckets[bucketpos].count)] / PREFILTER_WHITE;
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fp[0] := ls * Buckets[bucketpos].Red;
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fp[1] := ls * Buckets[bucketpos].Green;
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fp[2] := ls * Buckets[bucketpos].Blue;
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fp[3] := ls * Buckets[bucketpos].Count * fcp.white_level;
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end;
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Inc(bucketpos, oversample);
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if (fp[3] > 0.0) then begin
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alpha := power(fp[3], gamma);
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ls := vib * alpha / fp[3];
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ai := round(alpha * 256);
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if (ai < 0) then
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ai := 0
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else if (ai > 256) then
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ai := 256;
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ai := 256 - ai;
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end else begin
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// no intensity so simply set the BG;
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Row[j] := bgtot;
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continue;
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end;
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if (notvib > 0) then
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ri := Round(ls * fp[0] + notvib * power(fp[0], gamma))
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else
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ri := Round(ls * fp[0]);
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ri := ri + (ai * bgi[0]) shr 8;
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if (ri < 0) then
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ri := 0
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else if (ri > 255) then
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ri := 255;
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if (notvib > 0) then
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gi := Round(ls * fp[1] + notvib * power(fp[1], gamma))
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else
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gi := Round(ls * fp[1]);
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gi := gi + (ai * bgi[1]) shr 8;
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if (gi < 0) then
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gi := 0
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else if (gi > 255) then
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gi := 255;
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if (notvib > 0) then
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bi := Round(ls * fp[2] + notvib * power(fp[2], gamma))
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else
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bi := Round(ls * fp[2]);
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bi := bi + (ai * bgi[2]) shr 8;
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if (bi < 0) then
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bi := 0
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else if (bi > 255) then
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bi := 255;
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Row[j] := RGB(bi, gi, ri);
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end;
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Inc(bucketpos, 2 * gutter_width);
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Inc(bucketpos, (oversample - 1) * BucketWidth);
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end;
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Progress(1);
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRendererMM64.InitBitmap(w, h: Integer);
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begin
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if not Assigned(bm) then
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bm := TBitmap.Create;
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bm.PixelFormat := pf32bit;
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if (w <> 0) and (h <> 0) then begin
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bm.Width := w;
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bm.Height := h;
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end else begin
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bm.Width := image_Width;
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bm.Height := image_Height;
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end;
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end;
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///////////////////////////////////////////////////////////////////////////////
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constructor TRendererMM64.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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@ -638,6 +380,9 @@ begin
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end;
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end;
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FImageMaker.SetCP(FCP);
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FImageMaker.Init;
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fcp.sample_density := fcp.sample_density * nrslices;
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fcp.height := fcp.height div nrslices;
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center_y := fcp.center[1];
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@ -645,17 +390,22 @@ begin
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center_base := center_y - ((nrslices - 1) * fcp.height) / (2 * fcp.pixels_per_unit * zoom_scale);
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InitValues;
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InitBitmap(fcp.Width, NrSlices * fcp.Height);
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for i := 0 to NrSlices - 1 do begin
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if FStop then
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Exit;
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Slice := i;
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fcp.center[1] := center_base + fcp.height * slice / (fcp.pixels_per_unit * zoom_scale);
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CreateCamera;
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ClearBuffers;
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SetPixels;
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CreateBMFromBuckets(Slice * fcp.height);
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if not FStop then begin
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FImageMaker.OnProgress := OnProgress;
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FImageMaker.CreateImage(Slice * fcp.height);
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end;
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end;
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bm.PixelFormat := pf24bit;
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fcp.sample_density := fcp.sample_density / nrslices;
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fcp.height := fcp.height * nrslices;
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@ -673,6 +423,12 @@ begin
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Result := NrSlices;
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end;
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///////////////////////////////////////////////////////////////////////////////
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procedure TRendererMM64.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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Reference in New Issue
Block a user