mirror-github-bspeice/apophysis
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
265d667f495901060f4e9268ec4b5b87ec8dff20
apophysis/2.02g/Source/Render64.pas
ronaldhordijk 665af685f9 Added new variants 
fixed filter buf
2005-03-20 18:30:21 +00:00

614 lines
15 KiB
ObjectPascal
Raw Blame History

{
Flame screensaver Copyright (C) 2002 Ronald Hordijk
Apophysis Copyright (C) 2001-2004 Mark Townsend
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
}
unit Render64;
interface
uses
Windows, Graphics,
Render, Controlpoint;
type
TOnProgress = procedure(prog: double) of object;
type
TColorMapColor = Record
Red : Int64;
Green: Int64;
Blue : Int64;
// Count: Integer;
end;
PColorMapColor = ^TColorMapColor;
TColorMapArray = array[0..255] of TColorMapColor;
TBucket = Record
Red : Int64;
Green: Int64;
Blue : Int64;
Count: Int64;
end;
PBucket = ^TBucket;
TBucketArray = array of TBucket;
type
TRenderer64 = class(TBaseRenderer)
private
bm: TBitmap;
oversample: Int64;
filter_width: Integer;
filter: array of array of extended;
image_Width: Integer;
image_Height: Integer;
BucketWidth: Int64;
BucketHeight: Int64;
BucketSize: Int64;
gutter_width: Integer;
sample_density: extended;
Buckets: TBucketArray;
ColorMap: TColorMapArray;
bg: array[0..2] of extended;
vib_gam_n: Integer;
vibrancy: double;
gamma: double;
bounds: array[0..3] of extended;
size: array[0..1] of extended;
ppux, ppuy: extended;
procedure CreateFilter;
procedure NormalizeFilter;
procedure InitValues;
procedure InitBuffers;
procedure InitBitmap(w: Integer = 0; h: Integer = 0);
procedure ClearBuffers;
procedure ClearBuckets;
procedure CreateColorMap;
procedure CreateCamera;
procedure AddPointsToBuckets(const points: TPointsArray); overload;
procedure AddPointsToBucketsAngle(const points: TPointsArray); overload;
procedure SetPixels;
procedure CreateBMFromBuckets(YOffset: Integer = 0);
public
constructor Create; override;
destructor Destroy; override;
function GetImage: TBitmap; override;
procedure Render; override;
end;
implementation
uses
Math, Sysutils;
{ TRenderer64 }
///////////////////////////////////////////////////////////////////////////////
procedure TRenderer64.ClearBuckets;
var
i: integer;
begin
for i := 0 to BucketSize - 1 do begin
buckets[i].Red := 0;
buckets[i].Green := 0;
buckets[i].Blue := 0;
buckets[i].Count := 0;
end;
end;
///////////////////////////////////////////////////////////////////////////////
procedure TRenderer64.ClearBuffers;
begin
ClearBuckets;
end;
///////////////////////////////////////////////////////////////////////////////
procedure TRenderer64.CreateCamera;
var
scale: double;
t0, t1: double;
corner0, corner1: double;
shift: Integer;
begin
scale := power(2, fcp.zoom);
sample_density := fcp.sample_density * scale * scale;
ppux := fcp.pixels_per_unit * scale;
ppuy := fcp.pixels_per_unit * scale;
// todo field stuff
shift := 0;
t0 := gutter_width / (oversample * ppux);
t1 := gutter_width / (oversample * ppuy);
corner0 := fcp.center[0] - image_width / ppux / 2.0;
corner1 := fcp.center[1] - image_height / ppuy / 2.0;
bounds[0] := corner0 - t0;
bounds[1] := corner1 - t1 + shift;
bounds[2] := corner0 + image_width / ppux + t0;
bounds[3] := corner1 + image_height / ppuy + t1; //+ shift;
if abs(bounds[2] - bounds[0]) > 0.01 then
size[0] := 1.0 / (bounds[2] - bounds[0])
else
size[0] := 1;
if abs(bounds[3] - bounds[1]) > 0.01 then
size[1] := 1.0 / (bounds[3] - bounds[1])
else
size[1] := 1;
end;
///////////////////////////////////////////////////////////////////////////////
procedure TRenderer64.CreateColorMap;
var
i: integer;
begin
for i := 0 to 255 do begin
ColorMap[i].Red := (fcp.CMap[i][0] * fcp.white_level) div 256;
ColorMap[i].Green := (fcp.CMap[i][1] * fcp.white_level) div 256;
ColorMap[i].Blue := (fcp.CMap[i][2] * fcp.white_level) div 256;
// cmap[i][3] := fcp.white_level;
end;
end;
///////////////////////////////////////////////////////////////////////////////
procedure TRenderer64.CreateFilter;
var
i, j: integer;
fw: integer;
adjust: double;
ii, jj: double;
begin
oversample := fcp.spatial_oversample;
fw := Trunc(2.0 * FILTER_CUTOFF * oversample * fcp.spatial_filter_radius);
filter_width := fw + 1;
// make sure it has same parity as oversample
if odd(filter_width + oversample) then
inc(filter_width);
if (fw > 0.0) then
adjust := (1.0 * FILTER_CUTOFF * filter_width) / fw
else
adjust := 1.0;
setLength(filter, filter_width, filter_width);
for i := 0 to filter_width - 1 do begin
for j := 0 to filter_width - 1 do begin
ii := ((2.0 * i + 1.0)/ filter_width - 1.0) * adjust;
jj := ((2.0 * j + 1.0)/ filter_width - 1.0) * adjust;
filter[i, j] := exp(-2.0 * (ii * ii + jj * jj));
end;
end;
Normalizefilter;
end;
///////////////////////////////////////////////////////////////////////////////
destructor TRenderer64.Destroy;
begin
if assigned(bm) then
bm.Free;
inherited;
end;
///////////////////////////////////////////////////////////////////////////////
function TRenderer64.GetImage: TBitmap;
begin
Result := bm;
end;
///////////////////////////////////////////////////////////////////////////////
procedure TRenderer64.InitBuffers;
begin
gutter_width := (filter_width - oversample) div 2;
BucketHeight := oversample * image_height + 2 * gutter_width;
Bucketwidth := oversample * image_width + 2 * gutter_width;
BucketSize := BucketWidth * BucketHeight;
if high(buckets) <> (BucketSize - 1) then begin
SetLength(buckets, BucketSize);
end;
end;
///////////////////////////////////////////////////////////////////////////////
procedure TRenderer64.InitValues;
begin
image_height := fcp.Height;
image_Width := fcp.Width;
CreateFilter;
CreateCamera;
InitBuffers;
CreateColorMap;
vibrancy := 0;
gamma := 0;
vib_gam_n := 0;
bg[0] := 0;
bg[1] := 0;
bg[2] := 0;
end;
///////////////////////////////////////////////////////////////////////////////
procedure TRenderer64.NormalizeFilter;
var
i, j: integer;
t: double;
begin
t := 0;
for i := 0 to filter_width - 1 do
for j := 0 to filter_width - 1 do
t := t + filter[i, j];
for i := 0 to filter_width - 1 do
for j := 0 to filter_width - 1 do
filter[i, j] := filter[i, j] / t;
end;
///////////////////////////////////////////////////////////////////////////////
procedure TRenderer64.AddPointsToBuckets(const points: TPointsArray);
var
i: integer;
px, py: double;
bws, bhs: double;
bx, by: double;
wx, wy: double;
// R: double;
// V1, v2, v3: integer;
Bucket: PBucket;
MapColor: PColorMapColor;
begin
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];
for i := SUB_BATCH_SIZE - 1 downto 0 do begin
if FStop then
Exit;
px := points[i].x - bx;
py := points[i].y - by;
if ((px < 0) or (px > wx) or
(py < 0) or (py > wy)) then
continue;
MapColor := @ColorMap[Round(points[i].c * 255)];
Bucket := @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;
///////////////////////////////////////////////////////////////////////////////
procedure TRenderer64.AddPointsToBucketsAngle(const points: TPointsArray);
var
i: integer;
px, py: double;
ca,sa: double;
nx, ny: double;
bws, bhs: double;
bx, by: double;
wx, wy: double;
// R: double;
// V1, v2, v3: integer;
Bucket: PBucket;
MapColor: PColorMapColor;
begin
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
if FStop then
Exit;
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 := @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;
///////////////////////////////////////////////////////////////////////////////
procedure TRenderer64.SetPixels;
var
i{,j}: integer;
nsamples: Int64;
nrbatches: Integer;
points: TPointsArray;
// f: text;
begin
// if FileExists('c:\temp\flame.txt') then
// Deletefile('c:\temp\flame.txt');
// AssignFile(F, 'c:\temp\flame.txt');
// Rewrite(F);
SetLength(Points, SUB_BATCH_SIZE);
nsamples := Round(sample_density * bucketSize / (oversample * oversample));
nrbatches := Round(nsamples / (fcp.nbatches * SUB_BATCH_SIZE));
Randomize;
for i := 0 to nrbatches do begin
if FStop then
Exit;
if (i and $F = 0) then
Progress(i / nrbatches);
// generate points
case Compatibility of
0: fcp.iterate_Old(SUB_BATCH_SIZE, points);
1: fcp.iterateXYC(SUB_BATCH_SIZE, points);
end;
// for j := SUB_BATCH_SIZE - 1 downto 0 do
// Writeln(f, FloatTostr(points[j].x) + #9 + FloatTostr(points[j].y) + #9 + FloatTostr(points[j].c));
if FCP.FAngle = 0 then
AddPointsToBuckets(points)
else
AddPointsToBucketsAngle(points);
end;
// closefile(f);
Progress(1);
end;
///////////////////////////////////////////////////////////////////////////////
procedure TRenderer64.CreateBMFromBuckets(YOffset: Integer);
var
i, j: integer;
alpha: double;
// r,g,b: double;
ai, ri, gi, bi: Integer;
bgtot: Integer;
ls: double;
ii, jj: integer;
fp: array[0..3] of double;
Row: PLongintArray;
vib, notvib: Integer;
bgi: array[0..2] of Integer;
bucketpos: Integer;
filterValue: double;
filterpos: Integer;
lsa: array[0..1024] of double;
var
k1, k2: double;
area: double;
begin
if fcp.gamma = 0 then
gamma := fcp.gamma
else
gamma := 1 / fcp.gamma;
vib := round(fcp.vibrancy * 256.0);
notvib := 256 - vib;
bgi[0] := round(fcp.background[0]);
bgi[1] := round(fcp.background[1]);
bgi[2] := round(fcp.background[2]);
bgtot := RGB(bgi[2], bgi[1], bgi[0]);
k1 := (fcp.Contrast * BRIGHT_ADJUST * fcp.brightness * 268 * PREFILTER_WHITE) / 256.0;
area := image_width * image_height / (ppux * ppuy);
k2 := (oversample * oversample) / (fcp.Contrast * area * fcp.White_level * sample_density);
lsa[0] := 0;
for i := 1 to 1024 do begin
lsa[i] := (k1 * log10(1 + fcp.White_level * i * k2)) / (fcp.White_level * i);
end;
if filter_width > 1 then begin
for i := 0 to BucketWidth * BucketHeight - 1 do begin
if Buckets[i].count = 0 then
Continue;
ls := lsa[Min(1023, Buckets[i].Count)];
Buckets[i].Red := Round(Buckets[i].Red * ls);
Buckets[i].Green := Round(Buckets[i].Green * ls);
Buckets[i].Blue := Round(Buckets[i].Blue * ls);
Buckets[i].Count := Round(Buckets[i].Count * ls);
end;
end;
ls := 0;
ai := 0;
bucketpos := 0;
for i := 0 to Image_Height - 1 do begin
if FStop then
Break;
Progress(i / Image_Height);
Row := PLongintArray(bm.scanline[YOffset + i]);
for j := 0 to Image_Width - 1 do begin
if filter_width > 1 then begin
fp[0] := 0;
fp[1] := 0;
fp[2] := 0;
fp[3] := 0;
for ii := 0 to filter_width - 1 do begin
for jj := 0 to filter_width - 1 do begin
filterValue := filter[ii, jj];
filterpos := bucketpos + ii * BucketWidth + jj;
fp[0] := fp[0] + filterValue * Buckets[filterpos].Red;
fp[1] := fp[1] + filterValue * Buckets[filterpos].Green;
fp[2] := fp[2] + filterValue * Buckets[filterpos].Blue;
fp[3] := fp[3] + filterValue * Buckets[filterpos].Count;
end;
end;
fp[0] := fp[0] / PREFILTER_WHITE;
fp[1] := fp[1] / PREFILTER_WHITE;
fp[2] := fp[2] / PREFILTER_WHITE;
fp[3] := fcp.white_level * fp[3] / PREFILTER_WHITE;
end else begin
ls := lsa[Min(1023, Buckets[bucketpos].count)] / PREFILTER_WHITE;
fp[0] := ls * Buckets[bucketpos].Red;
fp[1] := ls * Buckets[bucketpos].Green;
fp[2] := ls * Buckets[bucketpos].Blue;
fp[3] := ls * Buckets[bucketpos].Count * fcp.white_level;
end;
Inc(bucketpos, oversample);
if (fp[3] > 0.0) then begin
alpha := power(fp[3], gamma);
ls := vib * alpha / fp[3];
ai := round(alpha * 256);
if (ai < 0) then
ai := 0
else if (ai > 256) then
ai := 256;
ai := 256 - ai;
end else begin
// no intensity so simply set the BG;
Row[j] := bgtot;
continue;
end;
if (notvib > 0) then
ri := Round(ls * fp[0] + notvib * power(fp[0], gamma))
else
ri := Round(ls * fp[0]);
ri := ri + (ai * bgi[0]) shr 8;
if (ri < 0) then
ri := 0
else if (ri > 255) then
ri := 255;
if (notvib > 0) then
gi := Round(ls * fp[1] + notvib * power(fp[1], gamma))
else
gi := Round(ls * fp[1]);
gi := gi + (ai * bgi[1]) shr 8;
if (gi < 0) then
gi := 0
else if (gi > 255) then
gi := 255;
if (notvib > 0) then
bi := Round(ls * fp[2] + notvib * power(fp[2], gamma))
else
bi := Round(ls * fp[2]);
bi := bi + (ai * bgi[2]) shr 8;
if (bi < 0) then
bi := 0
else if (bi > 255) then
bi := 255;
Row[j] := RGB(bi, gi, ri);// + (ai shl 24);
end;
Inc(bucketpos, 2 * gutter_width);
Inc(bucketpos, (oversample - 1) * BucketWidth);
end;
bm.PixelFormat := pf24bit;
Progress(1);
end;
///////////////////////////////////////////////////////////////////////////////
procedure TRenderer64.InitBitmap(w, h: Integer);
begin
if not Assigned(bm) then
bm := TBitmap.Create;
bm.PixelFormat := pf32bit;
if (w <> 0) and (h <> 0) then begin
bm.Width := w;
bm.Height := h;
end else begin
bm.Width := image_Width;
bm.Height := image_Height;
end;
end;
///////////////////////////////////////////////////////////////////////////////
constructor TRenderer64.Create;
begin
inherited Create;
end;
///////////////////////////////////////////////////////////////////////////////
procedure TRenderer64.Render;
begin
FStop := False;
InitValues;
InitBitmap;
ClearBuffers;
SetPixels;
CreateBMFromBuckets;
end;
///////////////////////////////////////////////////////////////////////////////
end.
Reference in New Issue View Git Blame Copy Permalink