eBookReaderSwitch/mupdf/thirdparty/lcms2/utils/delphi/demo1.pas

323 lines
7.4 KiB
ObjectPascal

unit demo1;
interface
uses
Windows, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
ExtCtrls, StdCtrls, ExtDlgs, lcms2dll, ComCtrls;
type
TForm1 = class(TForm)
Image1: TImage;
Image2: TImage;
Panel1: TPanel;
Splitter1: TSplitter;
Button2: TButton;
ComboBoxInput: TComboBox;
ComboBoxOutput: TComboBox;
Label1: TLabel;
Label2: TLabel;
WBCompensation: TCheckBox;
NoTransform: TCheckBox;
RadioGroup1: TRadioGroup;
OpenPictureDialog1: TOpenPictureDialog;
Button1: TButton;
ProgressBar1: TProgressBar;
ComboBoxIntent: TComboBox;
Label3: TLabel;
Button3: TButton;
Button4: TButton;
OpenDialog1: TOpenDialog;
Label4: TLabel;
ScrollBar1: TScrollBar;
procedure Button2Click(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
procedure Button4Click(Sender: TObject);
procedure ComboBoxIntentChange(Sender: TObject);
procedure ScrollBar1Change(Sender: TObject);
private
{ Private declarations }
function ComputeFlags: DWORD;
public
constructor Create(Owner: TComponent); Override;
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.DFM}
CONST
IS_INPUT = $1;
IS_DISPLAY = $2;
IS_COLORSPACE = $4;
IS_OUTPUT = $8;
IS_ABSTRACT = $10;
VAR
IntentCodes: array [0 .. 20] of cmsUInt32Number;
FUNCTION InSignatures(Signature: cmsProfileClassSignature; dwFlags: DWORD): Boolean;
BEGIN
if (((dwFlags AND IS_DISPLAY) <> 0) AND (Signature = cmsSigDisplayClass)) then
InSignatures := TRUE
else if (((dwFlags AND IS_OUTPUT) <> 0) AND (Signature = cmsSigOutputClass))
then
InSignatures := TRUE
else if (((dwFlags AND IS_INPUT) <> 0) AND (Signature = cmsSigInputClass))
then
InSignatures := TRUE
else if (((dwFlags AND IS_COLORSPACE) <> 0) AND
(Signature = cmsSigColorSpaceClass)) then
InSignatures := TRUE
else if (((dwFlags AND IS_ABSTRACT) <> 0) AND
(Signature = cmsSigAbstractClass)) then
InSignatures := TRUE
else
InSignatures := FALSE
END;
PROCEDURE FillCombo(var Combo: TComboBox; Signatures: DWORD);
var
Files, Descriptions: TStringList;
Found: Integer;
SearchRec: TSearchRec;
Path, Profile: String;
Dir: ARRAY [0 .. 1024] OF Char;
hProfile: cmsHPROFILE;
Descrip: array [0 .. 256] of Char;
begin
Files := TStringList.Create;
Descriptions := TStringList.Create;
GetSystemDirectory(Dir, 1023);
Path := String(Dir) + '\SPOOL\DRIVERS\COLOR\';
Found := FindFirst(Path + '*.ic?', faAnyFile, SearchRec);
while Found = 0 do
begin
Profile := Path + SearchRec.Name;
hProfile := cmsOpenProfileFromFile(PAnsiChar(AnsiString(Profile)), 'r');
if (hProfile <> NIL) THEN
begin
if ((cmsGetColorSpace(hProfile) = cmsSigRgbData) AND InSignatures
(cmsGetDeviceClass(hProfile), Signatures)) then
begin
cmsGetProfileInfo(hProfile, cmsInfoDescription, 'EN', 'us', Descrip,
256);
Descriptions.Add(Descrip);
Files.Add(Profile);
end;
cmsCloseProfile(hProfile);
end;
Found := FindNext(SearchRec);
end;
FindClose(SearchRec);
Combo.Items := Descriptions;
Combo.Tag := Integer(Files);
end;
// A rather simple Logger... note the "cdecl" convention
PROCEDURE ErrorLogger(ContextID: cmsContext; ErrorCode: cmsUInt32Number;
Text: PAnsiChar); Cdecl;
begin
MessageBox(0, PWideChar(WideString(Text)), 'Something is going wrong...',
MB_OK OR MB_ICONWARNING or MB_TASKMODAL);
end;
constructor TForm1.Create(Owner: TComponent);
var
IntentNames: array [0 .. 20] of PAnsiChar;
i, n: Integer;
begin
inherited Create(Owner);
// Set the logger
cmsSetLogErrorHandler(ErrorLogger);
ScrollBar1.Min := 0;
ScrollBar1.Max := 100;
FillCombo(ComboBoxInput, IS_INPUT OR IS_COLORSPACE OR IS_DISPLAY);
FillCombo(ComboBoxOutput, $FFFF );
// Get the supported intents
n := cmsGetSupportedIntents(20, @IntentCodes, @IntentNames);
ComboBoxIntent.Items.BeginUpdate;
ComboBoxIntent.Items.Clear;
for i:= 0 TO n - 1 DO
ComboBoxIntent.Items.Add(String(IntentNames[i]));
ComboBoxIntent.ItemIndex := 0;
ComboBoxIntent.Items.EndUpdate;
end;
procedure TForm1.ScrollBar1Change(Sender: TObject);
var d: Integer;
s: String;
begin
d := ScrollBar1.Position;
Str(d, s);
Label4.Caption := 'Adaptation state '+s + '% (Abs. col only)';
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
if OpenPictureDialog1.Execute then
begin
Image1.Picture.LoadFromFile(OpenPictureDialog1.FileName);
Image1.Picture.Bitmap.PixelFormat := pf24bit;
Image2.Picture.LoadFromFile(OpenPictureDialog1.FileName);
Image2.Picture.Bitmap.PixelFormat := pf24bit;
end
end;
function SelectedFile(var Combo: TComboBox): string;
var
List: TStringList;
n: Integer;
begin
List := TStringList(Combo.Tag);
n := Combo.ItemIndex;
if (n >= 0) then
SelectedFile := List.Strings[n]
else
SelectedFile := Combo.Text;
end;
procedure TForm1.ComboBoxIntentChange(Sender: TObject);
begin
ScrollBar1.Enabled := (ComboBoxIntent.itemIndex = 3);
end;
function TForm1.ComputeFlags: DWORD;
var
dwFlags: DWORD;
begin
dwFlags := 0;
if (WBCompensation.Checked) then
begin
dwFlags := dwFlags OR cmsFLAGS_BLACKPOINTCOMPENSATION
end;
if (NoTransform.Checked) then
begin
dwFlags := dwFlags OR cmsFLAGS_NULLTRANSFORM
end;
case RadioGroup1.ItemIndex of
0:
dwFlags := dwFlags OR cmsFLAGS_NOOPTIMIZE;
1:
dwFlags := dwFlags OR cmsFLAGS_HIGHRESPRECALC;
3:
dwFlags := dwFlags OR cmsFLAGS_LOWRESPRECALC;
end;
ComputeFlags := dwFlags
end;
procedure TForm1.Button1Click(Sender: TObject);
var
Source, Dest: String;
hSrc, hDest: cmsHPROFILE;
xform: cmsHTRANSFORM;
i, PicW, PicH: Integer;
Intent: Integer;
dwFlags: DWORD;
begin
Source := SelectedFile(ComboBoxInput);
Dest := SelectedFile(ComboBoxOutput);
dwFlags := ComputeFlags;
Intent := IntentCodes[ComboBoxIntent.ItemIndex];
cmsSetAdaptationState( ScrollBar1.Position / 100.0 );
if (Source <> '') AND (Dest <> '') then
begin
hSrc := cmsOpenProfileFromFile(PAnsiChar(AnsiString(Source)), 'r');
hDest := cmsOpenProfileFromFile(PAnsiChar(AnsiString(Dest)), 'r');
if (hSrc <> Nil) and (hDest <> Nil) then
begin
xform := cmsCreateTransform(hSrc, TYPE_BGR_8, hDest, TYPE_BGR_8, Intent,
dwFlags);
end
else
begin
xform := nil;
end;
if hSrc <> nil then
begin
cmsCloseProfile(hSrc);
end;
if hDest <> Nil then
begin
cmsCloseProfile(hDest);
end;
if (xform <> nil) then
begin
PicW := Image2.Picture.width;
PicH := Image2.Picture.height;
ProgressBar1.Min := 0;
ProgressBar1.Max := PicH;
ProgressBar1.Step := 1;
for i := 0 TO (PicH - 1) do
begin
if ((i MOD 100) = 0) then
ProgressBar1.Position := i;
cmsDoTransform(xform, Image1.Picture.Bitmap.Scanline[i],
Image2.Picture.Bitmap.Scanline[i], PicW);
end;
ProgressBar1.Position := PicH;
cmsDeleteTransform(xform);
end;
Image2.Repaint;
ProgressBar1.Position := 0;
end
end;
procedure TForm1.Button3Click(Sender: TObject);
begin
if OpenDialog1.Execute then
ComboBoxInput.Text := OpenDialog1.FileName;
end;
procedure TForm1.Button4Click(Sender: TObject);
begin
if OpenDialog1.Execute then
ComboBoxOutput.Text := OpenDialog1.FileName;
end;
end.