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* Updated Vampyre Imaging Lib

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* Fixed heContrs compilation
* Fixed region editing in frmLargeScaleCommand and frmRegionControl
* Fixed control alignment in frmMain
This commit is contained in:
Andreas Schneider
2013-11-03 14:12:48 +01:00
parent 4a5a835afd
commit 9676549ac3
25 changed files with 21231 additions and 21272 deletions
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286
Imaging/Imaging.pas
View File

@@ -1866,142 +1866,142 @@ var
OldFmt: TImageFormat;
procedure XShear(var Src, Dst: TImageData; Row, Offset, Weight, Bpp: Integer);
var
I, J, XPos: Integer;
PixSrc, PixLeft, PixOldLeft: TColor32Rec;
LineDst: PByteArray;
SrcPtr: PColor32;
begin
SrcPtr := @PByteArray(Src.Bits)[Row * Src.Width * Bpp];
LineDst := @PByteArray(Dst.Bits)[Row * Dst.Width * Bpp];
PixOldLeft.Color := 0;
for I := 0 to Src.Width - 1 do
begin
CopyPixel(SrcPtr, @PixSrc, Bpp);
for J := 0 to Bpp - 1 do
PixLeft.Channels[J] := MulDiv(PixSrc.Channels[J], Weight, 256);
XPos := I + Offset;
if (XPos >= 0) and (XPos < Dst.Width) then
begin
for J := 0 to Bpp - 1 do
PixSrc.Channels[J] := PixSrc.Channels[J] - (PixLeft.Channels[J] - PixOldLeft.Channels[J]);
CopyPixel(@PixSrc, @LineDst[XPos * Bpp], Bpp);
end;
PixOldLeft := PixLeft;
Inc(PByte(SrcPtr), Bpp);
end;
XPos := Src.Width + Offset;
if XPos < Dst.Width then
CopyPixel(@PixOldLeft, @LineDst[XPos * Bpp], Bpp);
end;
procedure YShear(var Src, Dst: TImageData; Col, Offset, Weight, Bpp: Integer);
var
I, J, YPos: Integer;
PixSrc, PixLeft, PixOldLeft: TColor32Rec;
SrcPtr: PByte;
begin
SrcPtr := @PByteArray(Src.Bits)[Col * Bpp];
PixOldLeft.Color := 0;
for I := 0 to Src.Height - 1 do
begin
CopyPixel(SrcPtr, @PixSrc, Bpp);
for J := 0 to Bpp - 1 do
PixLeft.Channels[J] := MulDiv(PixSrc.Channels[J], Weight, 256);
YPos := I + Offset;
if (YPos >= 0) and (YPos < Dst.Height) then
begin
for J := 0 to Bpp - 1 do
PixSrc.Channels[J] := PixSrc.Channels[J] - (PixLeft.Channels[J] - PixOldLeft.Channels[J]);
CopyPixel(@PixSrc, @PByteArray(Dst.Bits)[(YPos * Dst.Width + Col) * Bpp], Bpp);
end;
PixOldLeft := PixLeft;
Inc(SrcPtr, Src.Width * Bpp);
end;
YPos := Src.Height + Offset;
if YPos < Dst.Height then
CopyPixel(@PixOldLeft, @PByteArray(Dst.Bits)[(YPos * Dst.Width + Col) * Bpp], Bpp);
end;
procedure Rotate45(var Image: TImageData; Angle: Single);
var
TempImage1, TempImage2: TImageData;
AngleRad, AngleTan, AngleSin, AngleCos, Shear: Single;
I, DstWidth, DstHeight, SrcWidth, SrcHeight, Bpp: Integer;
SrcFmt, TempFormat: TImageFormat;
Info: TImageFormatInfo;
begin
AngleRad := Angle * Pi / 180;
AngleSin := Sin(AngleRad);
AngleCos := Cos(AngleRad);
AngleTan := Sin(AngleRad / 2) / Cos(AngleRad / 2);
SrcWidth := Image.Width;
SrcHeight := Image.Height;
SrcFmt := Image.Format;
if not (SrcFmt in [ifR8G8B8..ifX8R8G8B8, ifGray8..ifGray32, ifA16Gray16]) then
ConvertImage(Image, ifA8R8G8B8);
TempFormat := Image.Format;
GetImageFormatInfo(TempFormat, Info);
Bpp := Info.BytesPerPixel;
// 1st shear (horizontal)
DstWidth := Trunc(SrcWidth + SrcHeight * Abs(AngleTan) + 0.5);
DstHeight := SrcHeight;
NewImage(DstWidth, DstHeight, TempFormat, TempImage1);
for I := 0 to DstHeight - 1 do
begin
if AngleTan >= 0 then
Shear := (I + 0.5) * AngleTan
else
Shear := (I - DstHeight + 0.5) * AngleTan;
XShear(Image, TempImage1, I, Floor(Shear), Trunc(255 * (Shear - Floor(Shear)) + 1), Bpp);
end;
// 2nd shear (vertical)
FreeImage(Image);
DstHeight := Trunc(SrcWidth * Abs(AngleSin) + SrcHeight * AngleCos + 0.5) + 1;
NewImage(DstWidth, DstHeight, TempFormat, TempImage2);
if AngleSin >= 0 then
Shear := (SrcWidth - 1) * AngleSin
else
Shear := (SrcWidth - DstWidth) * -AngleSin;
for I := 0 to DstWidth - 1 do
begin
YShear(TempImage1, TempImage2, I, Floor(Shear), Trunc(255 * (Shear - Floor(Shear)) + 1), Bpp);
Shear := Shear - AngleSin;
end;
// 3rd shear (horizontal)
FreeImage(TempImage1);
DstWidth := Trunc(SrcHeight * Abs(AngleSin) + SrcWidth * AngleCos + 0.5) + 1;
NewImage(DstWidth, DstHeight, TempFormat, Image);
if AngleSin >= 0 then
Shear := (SrcWidth - 1) * AngleSin * -AngleTan
else
Shear := ((SrcWidth - 1) * -AngleSin + (1 - DstHeight)) * AngleTan;
for I := 0 to DstHeight - 1 do
begin
XShear(TempImage2, Image, I, Floor(Shear), Trunc(255 * (Shear - Floor(Shear)) + 1), Bpp);
Shear := Shear + AngleTan;
end;
FreeImage(TempImage2);
if Image.Format <> SrcFmt then
ConvertImage(Image, SrcFmt);
end;
var
I, J, XPos: Integer;
PixSrc, PixLeft, PixOldLeft: TColor32Rec;
LineDst: PByteArray;
SrcPtr: PColor32;
begin
SrcPtr := @PByteArray(Src.Bits)[Row * Src.Width * Bpp];
LineDst := @PByteArray(Dst.Bits)[Row * Dst.Width * Bpp];
PixOldLeft.Color := 0;
for I := 0 to Src.Width - 1 do
begin
CopyPixel(SrcPtr, @PixSrc, Bpp);
for J := 0 to Bpp - 1 do
PixLeft.Channels[J] := MulDiv(PixSrc.Channels[J], Weight, 256);
XPos := I + Offset;
if (XPos >= 0) and (XPos < Dst.Width) then
begin
for J := 0 to Bpp - 1 do
PixSrc.Channels[J] := PixSrc.Channels[J] - (PixLeft.Channels[J] - PixOldLeft.Channels[J]);
CopyPixel(@PixSrc, @LineDst[XPos * Bpp], Bpp);
end;
PixOldLeft := PixLeft;
Inc(PByte(SrcPtr), Bpp);
end;
XPos := Src.Width + Offset;
if XPos < Dst.Width then
CopyPixel(@PixOldLeft, @LineDst[XPos * Bpp], Bpp);
end;
procedure YShear(var Src, Dst: TImageData; Col, Offset, Weight, Bpp: Integer);
var
I, J, YPos: Integer;
PixSrc, PixLeft, PixOldLeft: TColor32Rec;
SrcPtr: PByte;
begin
SrcPtr := @PByteArray(Src.Bits)[Col * Bpp];
PixOldLeft.Color := 0;
for I := 0 to Src.Height - 1 do
begin
CopyPixel(SrcPtr, @PixSrc, Bpp);
for J := 0 to Bpp - 1 do
PixLeft.Channels[J] := MulDiv(PixSrc.Channels[J], Weight, 256);
YPos := I + Offset;
if (YPos >= 0) and (YPos < Dst.Height) then
begin
for J := 0 to Bpp - 1 do
PixSrc.Channels[J] := PixSrc.Channels[J] - (PixLeft.Channels[J] - PixOldLeft.Channels[J]);
CopyPixel(@PixSrc, @PByteArray(Dst.Bits)[(YPos * Dst.Width + Col) * Bpp], Bpp);
end;
PixOldLeft := PixLeft;
Inc(SrcPtr, Src.Width * Bpp);
end;
YPos := Src.Height + Offset;
if YPos < Dst.Height then
CopyPixel(@PixOldLeft, @PByteArray(Dst.Bits)[(YPos * Dst.Width + Col) * Bpp], Bpp);
end;
procedure Rotate45(var Image: TImageData; Angle: Single);
var
TempImage1, TempImage2: TImageData;
AngleRad, AngleTan, AngleSin, AngleCos, Shear: Single;
I, DstWidth, DstHeight, SrcWidth, SrcHeight, Bpp: Integer;
SrcFmt, TempFormat: TImageFormat;
Info: TImageFormatInfo;
begin
AngleRad := Angle * Pi / 180;
AngleSin := Sin(AngleRad);
AngleCos := Cos(AngleRad);
AngleTan := Sin(AngleRad / 2) / Cos(AngleRad / 2);
SrcWidth := Image.Width;
SrcHeight := Image.Height;
SrcFmt := Image.Format;
if not (SrcFmt in [ifR8G8B8..ifX8R8G8B8, ifGray8..ifGray32, ifA16Gray16]) then
ConvertImage(Image, ifA8R8G8B8);
TempFormat := Image.Format;
GetImageFormatInfo(TempFormat, Info);
Bpp := Info.BytesPerPixel;
// 1st shear (horizontal)
DstWidth := Trunc(SrcWidth + SrcHeight * Abs(AngleTan) + 0.5);
DstHeight := SrcHeight;
NewImage(DstWidth, DstHeight, TempFormat, TempImage1);
for I := 0 to DstHeight - 1 do
begin
if AngleTan >= 0 then
Shear := (I + 0.5) * AngleTan
else
Shear := (I - DstHeight + 0.5) * AngleTan;
XShear(Image, TempImage1, I, Floor(Shear), Trunc(255 * (Shear - Floor(Shear)) + 1), Bpp);
end;
// 2nd shear (vertical)
FreeImage(Image);
DstHeight := Trunc(SrcWidth * Abs(AngleSin) + SrcHeight * AngleCos + 0.5) + 1;
NewImage(DstWidth, DstHeight, TempFormat, TempImage2);
if AngleSin >= 0 then
Shear := (SrcWidth - 1) * AngleSin
else
Shear := (SrcWidth - DstWidth) * -AngleSin;
for I := 0 to DstWidth - 1 do
begin
YShear(TempImage1, TempImage2, I, Floor(Shear), Trunc(255 * (Shear - Floor(Shear)) + 1), Bpp);
Shear := Shear - AngleSin;
end;
// 3rd shear (horizontal)
FreeImage(TempImage1);
DstWidth := Trunc(SrcHeight * Abs(AngleSin) + SrcWidth * AngleCos + 0.5) + 1;
NewImage(DstWidth, DstHeight, TempFormat, Image);
if AngleSin >= 0 then
Shear := (SrcWidth - 1) * AngleSin * -AngleTan
else
Shear := ((SrcWidth - 1) * -AngleSin + (1 - DstHeight)) * AngleTan;
for I := 0 to DstHeight - 1 do
begin
XShear(TempImage2, Image, I, Floor(Shear), Trunc(255 * (Shear - Floor(Shear)) + 1), Bpp);
Shear := Shear + AngleTan;
end;
FreeImage(TempImage2);
if Image.Format <> SrcFmt then
ConvertImage(Image, SrcFmt);
end;
procedure RotateMul90(var Image: TImageData; Angle: Integer);
var
@@ -2009,7 +2009,7 @@ var
X, Y, BytesPerPixel: Integer;
RotPix, Pix: PByte;
begin
InitImage(RotImage);
InitImage(RotImage);
BytesPerPixel := ImageFormatInfos[Image.Format].BytesPerPixel;
if ((Angle = 90) or (Angle = 270)) and (Image.Width <> Image.Height) then
@@ -2061,9 +2061,9 @@ var
FreeMemNil(Image.Bits);
RotImage.Palette := Image.Palette;
Image := RotImage;
Image := RotImage;
end;
begin
Result := False;
@@ -2073,7 +2073,7 @@ begin
Angle := Angle - 360;
while Angle < 0 do
Angle := Angle + 360;
if (Angle = 0) or (Abs(Angle) = 360) then
begin
Result := True;
@@ -2099,9 +2099,9 @@ begin
RotateMul90(Image, 270);
Angle := Angle - 270;
end;
if Angle <> 0 then
Rotate45(Image, Angle);
if Angle <> 0 then
Rotate45(Image, Angle);
if OldFmt <> Image.Format then
ConvertImage(Image, OldFmt);

1714
Imaging/ImagingBitmap.pas
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Imaging/ImagingCanvases.pas
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Imaging/ImagingClasses.pas
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Imaging/ImagingColors.pas
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@@ -1,245 +1,245 @@
{
$Id: ImagingColors.pas 173 2009-09-04 17:05:52Z galfar $
Vampyre Imaging Library
by Marek Mauder
http://imaginglib.sourceforge.net
The contents of this file are used with permission, subject to the Mozilla
Public License Version 1.1 (the "License"); you may not use this file except
in compliance with the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL/MPL-1.1.html
Software distributed under the License is distributed on an "AS IS" basis,
WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
the specific language governing rights and limitations under the License.
Alternatively, the contents of this file may be used under the terms of the
GNU Lesser General Public License (the "LGPL License"), in which case the
provisions of the LGPL License are applicable instead of those above.
If you wish to allow use of your version of this file only under the terms
of the LGPL License and not to allow others to use your version of this file
under the MPL, indicate your decision by deleting the provisions above and
replace them with the notice and other provisions required by the LGPL
License. If you do not delete the provisions above, a recipient may use
your version of this file under either the MPL or the LGPL License.
For more information about the LGPL: http://www.gnu.org/copyleft/lesser.html
}
{ This unit contains functions for manipulating and converting color values.}
unit ImagingColors;
interface
{$I ImagingOptions.inc}
uses
SysUtils, ImagingTypes, ImagingUtility;
{ Converts RGB color to YUV.}
procedure RGBToYUV(R, G, B: Byte; var Y, U, V: Byte);
{ Converts YIV to RGB color.}
procedure YUVToRGB(Y, U, V: Byte; var R, G, B: Byte);
{ Converts RGB color to YCbCr as used in JPEG.}
procedure RGBToYCbCr(R, G, B: Byte; var Y, Cb, Cr: Byte);
{ Converts YCbCr as used in JPEG to RGB color.}
procedure YCbCrToRGB(Y, Cb, Cr: Byte; var R, G, B: Byte);
{ Converts RGB color to YCbCr as used in JPEG.}
procedure RGBToYCbCr16(R, G, B: Word; var Y, Cb, Cr: Word);
{ Converts YCbCr as used in JPEG to RGB color.}
procedure YCbCrToRGB16(Y, Cb, Cr: Word; var R, G, B: Word);
{ Converts RGB color to CMY.}
procedure RGBToCMY(R, G, B: Byte; var C, M, Y: Byte);
{ Converts CMY to RGB color.}
procedure CMYToRGB(C, M, Y: Byte; var R, G, B: Byte);
{ Converts RGB color to CMY.}
procedure RGBToCMY16(R, G, B: Word; var C, M, Y: Word);
{ Converts CMY to RGB color.}
procedure CMYToRGB16(C, M, Y: Word; var R, G, B: Word);
{ Converts RGB color to CMYK.}
procedure RGBToCMYK(R, G, B: Byte; var C, M, Y, K: Byte);
{ Converts CMYK to RGB color.}
procedure CMYKToRGB(C, M, Y, K: Byte; var R, G, B: Byte);
{ Converts RGB color to CMYK.}
procedure RGBToCMYK16(R, G, B: Word; var C, M, Y, K: Word);
{ Converts CMYK to RGB color.}
procedure CMYKToRGB16(C, M, Y, K: Word; var R, G, B: Word);
{ Converts RGB color to YCoCg.}
procedure RGBToYCoCg(R, G, B: Byte; var Y, Co, Cg: Byte);
{ Converts YCoCg to RGB color.}
procedure YCoCgToRGB(Y, Co, Cg: Byte; var R, G, B: Byte);
implementation
procedure RGBToYUV(R, G, B: Byte; var Y, U, V: Byte);
begin
Y := ClampToByte(Round( 0.257 * R + 0.504 * G + 0.098 * B) + 16);
V := ClampToByte(Round( 0.439 * R - 0.368 * G - 0.071 * B) + 128);
U := ClampToByte(Round(-0.148 * R - 0.291 * G + 0.439 * B) + 128);
end;
procedure YUVToRGB(Y, U, V: Byte; var R, G, B: Byte);
var
CY, CU, CV: LongInt;
begin
CY := Y - 16;
CU := U - 128;
CV := V - 128;
R := ClampToByte(Round(1.164 * CY - 0.002 * CU + 1.596 * CV));
G := ClampToByte(Round(1.164 * CY - 0.391 * CU - 0.813 * CV));
B := ClampToByte(Round(1.164 * CY + 2.018 * CU - 0.001 * CV));
end;
procedure RGBToYCbCr(R, G, B: Byte; var Y, Cb, Cr: Byte);
begin
Y := ClampToByte(Round( 0.29900 * R + 0.58700 * G + 0.11400 * B));
Cb := ClampToByte(Round(-0.16874 * R - 0.33126 * G + 0.50000 * B + 128));
Cr := ClampToByte(Round( 0.50000 * R - 0.41869 * G - 0.08131 * B + 128));
end;
procedure YCbCrToRGB(Y, Cb, Cr: Byte; var R, G, B: Byte);
begin
R := ClampToByte(Round(Y + 1.40200 * (Cr - 128)));
G := ClampToByte(Round(Y - 0.34414 * (Cb - 128) - 0.71414 * (Cr - 128)));
B := ClampToByte(Round(Y + 1.77200 * (Cb - 128)));
end;
procedure RGBToYCbCr16(R, G, B: Word; var Y, Cb, Cr: Word);
begin
Y := ClampToWord(Round( 0.29900 * R + 0.58700 * G + 0.11400 * B));
Cb := ClampToWord(Round(-0.16874 * R - 0.33126 * G + 0.50000 * B + 32768));
Cr := ClampToWord(Round( 0.50000 * R - 0.41869 * G - 0.08131 * B + 32768));
end;
procedure YCbCrToRGB16(Y, Cb, Cr: Word; var R, G, B: Word);
begin
R := ClampToWord(Round(Y + 1.40200 * (Cr - 32768)));
G := ClampToWord(Round(Y - 0.34414 * (Cb - 32768) - 0.71414 * (Cr - 32768)));
B := ClampToWord(Round(Y + 1.77200 * (Cb - 32768)));
end;
procedure RGBToCMY(R, G, B: Byte; var C, M, Y: Byte);
begin
C := 255 - R;
M := 255 - G;
Y := 255 - B;
end;
procedure CMYToRGB(C, M, Y: Byte; var R, G, B: Byte);
begin
R := 255 - C;
G := 255 - M;
B := 255 - Y;
end;
procedure RGBToCMY16(R, G, B: Word; var C, M, Y: Word);
begin
C := 65535 - R;
M := 65535 - G;
Y := 65535 - B;
end;
procedure CMYToRGB16(C, M, Y: Word; var R, G, B: Word);
begin
R := 65535 - C;
G := 65535 - M;
B := 65535 - Y;
end;
procedure RGBToCMYK(R, G, B: Byte; var C, M, Y, K: Byte);
begin
RGBToCMY(R, G, B, C, M, Y);
K := Min(C, Min(M, Y));
if K = 255 then
begin
C := 0;
M := 0;
Y := 0;
end
else
begin
C := ClampToByte(Round((C - K) / (255 - K) * 255));
M := ClampToByte(Round((M - K) / (255 - K) * 255));
Y := ClampToByte(Round((Y - K) / (255 - K) * 255));
end;
end;
procedure CMYKToRGB(C, M, Y, K: Byte; var R, G, B: Byte);
begin
R := (255 - (C - MulDiv(C, K, 255) + K));
G := (255 - (M - MulDiv(M, K, 255) + K));
B := (255 - (Y - MulDiv(Y, K, 255) + K));
end;
procedure RGBToCMYK16(R, G, B: Word; var C, M, Y, K: Word);
begin
RGBToCMY16(R, G, B, C, M, Y);
K := Min(C, Min(M, Y));
if K = 65535 then
begin
C := 0;
M := 0;
Y := 0;
end
else
begin
C := ClampToWord(Round((C - K) / (65535 - K) * 65535));
M := ClampToWord(Round((M - K) / (65535 - K) * 65535));
Y := ClampToWord(Round((Y - K) / (65535 - K) * 65535));
end;
end;
procedure CMYKToRGB16(C, M, Y, K: Word; var R, G, B: Word);
begin
R := 65535 - (C - MulDiv(C, K, 65535) + K);
G := 65535 - (M - MulDiv(M, K, 65535) + K);
B := 65535 - (Y - MulDiv(Y, K, 65535) + K);
end;
procedure RGBToYCoCg(R, G, B: Byte; var Y, Co, Cg: Byte);
begin
// C and Delphi's SHR behaviour differs for negative numbers, use div instead.
Y := ClampToByte(( R + G shl 1 + B + 2) div 4);
Co := ClampToByte(( R shl 1 - B shl 1 + 2) div 4 + 128);
Cg := ClampToByte((-R + G shl 1 - B + 2) div 4 + 128);
end;
procedure YCoCgToRGB(Y, Co, Cg: Byte; var R, G, B: Byte);
var
CoInt, CgInt: Integer;
begin
CoInt := Co - 128;
CgInt := Cg - 128;
R := ClampToByte(Y + CoInt - CgInt);
G := ClampToByte(Y + CgInt);
B := ClampToByte(Y - CoInt - CgInt);
end;
{
File Notes:
-- TODOS ----------------------------------------------------
- nothing now
-- 0.26.3 Changes/Bug Fixes ---------------------------------
- Added RGB<>YCoCg conversion functions.
- Fixed RGB>>CMYK conversions.
-- 0.23 Changes/Bug Fixes -----------------------------------
- Added RGB<>CMY(K) converion functions for 16 bit channels
(needed by PSD loading code).
-- 0.21 Changes/Bug Fixes -----------------------------------
- Added some color space conversion functions and LUTs
(RGB/YUV/YCrCb/CMY/CMYK).
-- 0.17 Changes/Bug Fixes -----------------------------------
- unit created (empty!)
}
end.
{
$Id: ImagingColors.pas 173 2009-09-04 17:05:52Z galfar $
Vampyre Imaging Library
by Marek Mauder
http://imaginglib.sourceforge.net
The contents of this file are used with permission, subject to the Mozilla
Public License Version 1.1 (the "License"); you may not use this file except
in compliance with the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL/MPL-1.1.html
Software distributed under the License is distributed on an "AS IS" basis,
WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
the specific language governing rights and limitations under the License.
Alternatively, the contents of this file may be used under the terms of the
GNU Lesser General Public License (the "LGPL License"), in which case the
provisions of the LGPL License are applicable instead of those above.
If you wish to allow use of your version of this file only under the terms
of the LGPL License and not to allow others to use your version of this file
under the MPL, indicate your decision by deleting the provisions above and
replace them with the notice and other provisions required by the LGPL
License. If you do not delete the provisions above, a recipient may use
your version of this file under either the MPL or the LGPL License.
For more information about the LGPL: http://www.gnu.org/copyleft/lesser.html
}
{ This unit contains functions for manipulating and converting color values.}
unit ImagingColors;
interface
{$I ImagingOptions.inc}
uses
SysUtils, ImagingTypes, ImagingUtility;
{ Converts RGB color to YUV.}
procedure RGBToYUV(R, G, B: Byte; var Y, U, V: Byte);
{ Converts YIV to RGB color.}
procedure YUVToRGB(Y, U, V: Byte; var R, G, B: Byte);
{ Converts RGB color to YCbCr as used in JPEG.}
procedure RGBToYCbCr(R, G, B: Byte; var Y, Cb, Cr: Byte);
{ Converts YCbCr as used in JPEG to RGB color.}
procedure YCbCrToRGB(Y, Cb, Cr: Byte; var R, G, B: Byte);
{ Converts RGB color to YCbCr as used in JPEG.}
procedure RGBToYCbCr16(R, G, B: Word; var Y, Cb, Cr: Word);
{ Converts YCbCr as used in JPEG to RGB color.}
procedure YCbCrToRGB16(Y, Cb, Cr: Word; var R, G, B: Word);
{ Converts RGB color to CMY.}
procedure RGBToCMY(R, G, B: Byte; var C, M, Y: Byte);
{ Converts CMY to RGB color.}
procedure CMYToRGB(C, M, Y: Byte; var R, G, B: Byte);
{ Converts RGB color to CMY.}
procedure RGBToCMY16(R, G, B: Word; var C, M, Y: Word);
{ Converts CMY to RGB color.}
procedure CMYToRGB16(C, M, Y: Word; var R, G, B: Word);
{ Converts RGB color to CMYK.}
procedure RGBToCMYK(R, G, B: Byte; var C, M, Y, K: Byte);
{ Converts CMYK to RGB color.}
procedure CMYKToRGB(C, M, Y, K: Byte; var R, G, B: Byte);
{ Converts RGB color to CMYK.}
procedure RGBToCMYK16(R, G, B: Word; var C, M, Y, K: Word);
{ Converts CMYK to RGB color.}
procedure CMYKToRGB16(C, M, Y, K: Word; var R, G, B: Word);
{ Converts RGB color to YCoCg.}
procedure RGBToYCoCg(R, G, B: Byte; var Y, Co, Cg: Byte);
{ Converts YCoCg to RGB color.}
procedure YCoCgToRGB(Y, Co, Cg: Byte; var R, G, B: Byte);
implementation
procedure RGBToYUV(R, G, B: Byte; var Y, U, V: Byte);
begin
Y := ClampToByte(Round( 0.257 * R + 0.504 * G + 0.098 * B) + 16);
V := ClampToByte(Round( 0.439 * R - 0.368 * G - 0.071 * B) + 128);
U := ClampToByte(Round(-0.148 * R - 0.291 * G + 0.439 * B) + 128);
end;
procedure YUVToRGB(Y, U, V: Byte; var R, G, B: Byte);
var
CY, CU, CV: LongInt;
begin
CY := Y - 16;
CU := U - 128;
CV := V - 128;
R := ClampToByte(Round(1.164 * CY - 0.002 * CU + 1.596 * CV));
G := ClampToByte(Round(1.164 * CY - 0.391 * CU - 0.813 * CV));
B := ClampToByte(Round(1.164 * CY + 2.018 * CU - 0.001 * CV));
end;
procedure RGBToYCbCr(R, G, B: Byte; var Y, Cb, Cr: Byte);
begin
Y := ClampToByte(Round( 0.29900 * R + 0.58700 * G + 0.11400 * B));
Cb := ClampToByte(Round(-0.16874 * R - 0.33126 * G + 0.50000 * B + 128));
Cr := ClampToByte(Round( 0.50000 * R - 0.41869 * G - 0.08131 * B + 128));
end;
procedure YCbCrToRGB(Y, Cb, Cr: Byte; var R, G, B: Byte);
begin
R := ClampToByte(Round(Y + 1.40200 * (Cr - 128)));
G := ClampToByte(Round(Y - 0.34414 * (Cb - 128) - 0.71414 * (Cr - 128)));
B := ClampToByte(Round(Y + 1.77200 * (Cb - 128)));
end;
procedure RGBToYCbCr16(R, G, B: Word; var Y, Cb, Cr: Word);
begin
Y := ClampToWord(Round( 0.29900 * R + 0.58700 * G + 0.11400 * B));
Cb := ClampToWord(Round(-0.16874 * R - 0.33126 * G + 0.50000 * B + 32768));
Cr := ClampToWord(Round( 0.50000 * R - 0.41869 * G - 0.08131 * B + 32768));
end;
procedure YCbCrToRGB16(Y, Cb, Cr: Word; var R, G, B: Word);
begin
R := ClampToWord(Round(Y + 1.40200 * (Cr - 32768)));
G := ClampToWord(Round(Y - 0.34414 * (Cb - 32768) - 0.71414 * (Cr - 32768)));
B := ClampToWord(Round(Y + 1.77200 * (Cb - 32768)));
end;
procedure RGBToCMY(R, G, B: Byte; var C, M, Y: Byte);
begin
C := 255 - R;
M := 255 - G;
Y := 255 - B;
end;
procedure CMYToRGB(C, M, Y: Byte; var R, G, B: Byte);
begin
R := 255 - C;
G := 255 - M;
B := 255 - Y;
end;
procedure RGBToCMY16(R, G, B: Word; var C, M, Y: Word);
begin
C := 65535 - R;
M := 65535 - G;
Y := 65535 - B;
end;
procedure CMYToRGB16(C, M, Y: Word; var R, G, B: Word);
begin
R := 65535 - C;
G := 65535 - M;
B := 65535 - Y;
end;
procedure RGBToCMYK(R, G, B: Byte; var C, M, Y, K: Byte);
begin
RGBToCMY(R, G, B, C, M, Y);
K := Min(C, Min(M, Y));
if K = 255 then
begin
C := 0;
M := 0;
Y := 0;
end
else
begin
C := ClampToByte(Round((C - K) / (255 - K) * 255));
M := ClampToByte(Round((M - K) / (255 - K) * 255));
Y := ClampToByte(Round((Y - K) / (255 - K) * 255));
end;
end;
procedure CMYKToRGB(C, M, Y, K: Byte; var R, G, B: Byte);
begin
R := (255 - (C - MulDiv(C, K, 255) + K));
G := (255 - (M - MulDiv(M, K, 255) + K));
B := (255 - (Y - MulDiv(Y, K, 255) + K));
end;
procedure RGBToCMYK16(R, G, B: Word; var C, M, Y, K: Word);
begin
RGBToCMY16(R, G, B, C, M, Y);
K := Min(C, Min(M, Y));
if K = 65535 then
begin
C := 0;
M := 0;
Y := 0;
end
else
begin
C := ClampToWord(Round((C - K) / (65535 - K) * 65535));
M := ClampToWord(Round((M - K) / (65535 - K) * 65535));
Y := ClampToWord(Round((Y - K) / (65535 - K) * 65535));
end;
end;
procedure CMYKToRGB16(C, M, Y, K: Word; var R, G, B: Word);
begin
R := 65535 - (C - MulDiv(C, K, 65535) + K);
G := 65535 - (M - MulDiv(M, K, 65535) + K);
B := 65535 - (Y - MulDiv(Y, K, 65535) + K);
end;
procedure RGBToYCoCg(R, G, B: Byte; var Y, Co, Cg: Byte);
begin
// C and Delphi's SHR behaviour differs for negative numbers, use div instead.
Y := ClampToByte(( R + G shl 1 + B + 2) div 4);
Co := ClampToByte(( R shl 1 - B shl 1 + 2) div 4 + 128);
Cg := ClampToByte((-R + G shl 1 - B + 2) div 4 + 128);
end;
procedure YCoCgToRGB(Y, Co, Cg: Byte; var R, G, B: Byte);
var
CoInt, CgInt: Integer;
begin
CoInt := Co - 128;
CgInt := Cg - 128;
R := ClampToByte(Y + CoInt - CgInt);
G := ClampToByte(Y + CgInt);
B := ClampToByte(Y - CoInt - CgInt);
end;
{
File Notes:
-- TODOS ----------------------------------------------------
- nothing now
-- 0.26.3 Changes/Bug Fixes ---------------------------------
- Added RGB<>YCoCg conversion functions.
- Fixed RGB>>CMYK conversions.
-- 0.23 Changes/Bug Fixes -----------------------------------
- Added RGB<>CMY(K) converion functions for 16 bit channels
(needed by PSD loading code).
-- 0.21 Changes/Bug Fixes -----------------------------------
- Added some color space conversion functions and LUTs
(RGB/YUV/YCrCb/CMY/CMYK).
-- 0.17 Changes/Bug Fixes -----------------------------------
- unit created (empty!)
}
end.

2
Imaging/ImagingComponents.pas
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@@ -336,7 +336,7 @@ implementation
uses
{$IF Defined(LCL)}
{$IF Defined(LCLGTK2)}
GLib2, GDK2, GTK2, GTK2Def, GTK2Proc,
GLib2, GDK2, GTK2, GTKDef, GTKProc,
{$ELSEIF Defined(LCLGTK)}
GDK, GTK, GTKDef, GTKProc,
{$IFEND}

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Imaging/ImagingDds.pas
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Imaging/ImagingExport.pas
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Imaging/ImagingFormats.pas
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Imaging/ImagingGif.pas
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1148
Imaging/ImagingIO.pas
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Imaging/ImagingJpeg.pas
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Imaging/ImagingNetworkGraphics.pas
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17
Imaging/ImagingOptions.inc
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@@ -83,14 +83,6 @@
{$ENDIF}
{$ENDIF}
{$IF (Defined(DCC) and (CompilerVersion >= 18.5))}
{$IFDEF RELEASE}
{$UNDEF DEBUG} // If we are using Delphi 2007+ where you can set
// DEBUG/RELEASE mode in project options and RELEASE
// is currently set we undef DEBUG mode
{$ENDIF}
{$IFEND}
{$IF Defined(IMAGING_DEBUG)}
{$ASSERTIONS ON}
{$DEBUGINFO ON}
@@ -128,18 +120,13 @@
// Define if compiler supports inlining of functions and procedures
// Note that FPC inline support crashed in older versions (1.9.8)
{$IF (Defined(DCC) and (CompilerVersion >= 17)) or (Defined(FPC) and Defined(CPU86))}
{$IF (Defined(FPC) and Defined(CPU86))}
{$DEFINE HAS_INLINE}
{$IFEND}
// Define if compiler supports advanced records with methods
{$IF (Defined(DCC) and (CompilerVersion >= 18)) }
{$DEFINE HAS_ADVANCED_RECORDS}
{$IFEND}
// Define if compiler supports operator overloading
// (unfortunately Delphi and FPC operator overloaing is not compatible)
{$IF (Defined(DCC) and (CompilerVersion >= 18)) or Defined(FPC)}
{$IF Defined(FPC)}
{$DEFINE HAS_OPERATOR_OVERLOADING}
{$IFEND}

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Imaging/ImagingPortableMaps.pas
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Imaging/ImagingTarga.pas
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Imaging/ImagingTypes.pas
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@@ -1,499 +1,499 @@
{
$Id: ImagingTypes.pas 171 2009-09-02 01:34:19Z galfar $
Vampyre Imaging Library
by Marek Mauder
http://imaginglib.sourceforge.net
The contents of this file are used with permission, subject to the Mozilla
Public License Version 1.1 (the "License"); you may not use this file except
in compliance with the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL/MPL-1.1.html
Software distributed under the License is distributed on an "AS IS" basis,
WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
the specific language governing rights and limitations under the License.
Alternatively, the contents of this file may be used under the terms of the
GNU Lesser General Public License (the "LGPL License"), in which case the
provisions of the LGPL License are applicable instead of those above.
If you wish to allow use of your version of this file only under the terms
of the LGPL License and not to allow others to use your version of this file
under the MPL, indicate your decision by deleting the provisions above and
replace them with the notice and other provisions required by the LGPL
License. If you do not delete the provisions above, a recipient may use
your version of this file under either the MPL or the LGPL License.
For more information about the LGPL: http://www.gnu.org/copyleft/lesser.html
}
{ This unit contains basic types and constants used by Imaging library.}
unit ImagingTypes;
{$I ImagingOptions.inc}
interface
const
{ Current Major version of Imaging.}
ImagingVersionMajor = 0;
{ Current Minor version of Imaging.}
ImagingVersionMinor = 26;
{ Current patch of Imaging.}
ImagingVersionPatch = 4;
{ Imaging Option Ids whose values can be set/get by SetOption/
GetOption functions.}
{ Defines Jpeg compression quality, ranges from 1 (ugly/small) to 100 (nice/large).
Default value is 90.}
ImagingJpegQuality = 10;
{ Specifies whether Jpeg images are saved in progressive format,
can be 0 or 1. Default value is 0.}
ImagingJpegProgressive = 11;
{ Specifies whether Windows Bitmaps are saved using RLE compression
(only for 1/4/8 bit images), can be 0 or 1. Default value is 1.}
ImagingBitmapRLE = 12;
{ Specifies whether Targa images are saved using RLE compression,
can be 0 or 1. Default value is 0.}
ImagingTargaRLE = 13;
{ Value of this option is non-zero if last loaded DDS file was cube map.}
ImagingDDSLoadedCubeMap = 14;
{ Value of this option is non-zero if last loaded DDS file was volume texture.}
ImagingDDSLoadedVolume = 15;
{ Value of this option is number of mipmap levels of last loaded DDS image.}
ImagingDDSLoadedMipMapCount = 16;
{ Value of this option is depth (slices of volume texture or faces of
cube map) of last loaded DDS image.}
ImagingDDSLoadedDepth = 17;
{ If it is non-zero next saved DDS file should be stored as cube map.}
ImagingDDSSaveCubeMap = 18;
{ If it is non-zero next saved DDS file should be stored as volume texture.}
ImagingDDSSaveVolume = 19;
{ Sets the number of mipmaps which should be stored in the next saved DDS file.
Only applies to cube maps and volumes, ordinary 2D textures save all
levels present in input.}
ImagingDDSSaveMipMapCount = 20;
{ Sets the depth (slices of volume texture or faces of cube map)
of the next saved DDS file.}
ImagingDDSSaveDepth = 21;
{ Sets precompression filter used when saving PNG images. Allowed values
are: 0 (none), 1 (sub), 2 (up), 3 (average), 4 (paeth),
5 (use 0 for indexed/gray images and 4 for RGB/ARGB images),
6 (adaptive filtering - use best filter for each scanline - very slow).
Note that filters 3 and 4 are much slower than filters 1 and 2.
Default value is 5.}
ImagingPNGPreFilter = 25;
{ Sets ZLib compression level used when saving PNG images.
Allowed values are in range 0 (no compresstion) to 9 (best compression).
Default value is 5.}
ImagingPNGCompressLevel = 26;
{ Boolean option that specifies whether PNG images with more frames (APNG format)
are animated by Imaging (according to frame disposal/blend methods) or just
raw frames are loaded and sent to user (if you want to animate APNG yourself).
Default value is 1.}
ImagingPNGLoadAnimated = 27;
{ Specifies whether MNG animation frames are saved with lossy or lossless
compression. Lossless frames are saved as PNG images and lossy frames are
saved as JNG images. Allowed values are 0 (False) and 1 (True).
Default value is 0.}
ImagingMNGLossyCompression = 28;
{ Defines whether alpha channel of lossy compressed MNG frames
(when ImagingMNGLossyCompression is 1) is lossy compressed too.
Allowed values are 0 (False) and 1 (True). Default value is 0.}
ImagingMNGLossyAlpha = 29;
{ Sets precompression filter used when saving MNG frames as PNG images.
For details look at ImagingPNGPreFilter.}
ImagingMNGPreFilter = 30;
{ Sets ZLib compression level used when saving MNG frames as PNG images.
For details look at ImagingPNGCompressLevel.}
ImagingMNGCompressLevel = 31;
{ Specifies compression quality used when saving MNG frames as JNG images.
For details look at ImagingJpegQuality.}
ImagingMNGQuality = 32;
{ Specifies whether images are saved in progressive format when saving MNG
frames as JNG images. For details look at ImagingJpegProgressive.}
ImagingMNGProgressive = 33;
{ Specifies whether alpha channels of JNG images are lossy compressed.
Allowed values are 0 (False) and 1 (True). Default value is 0.}
ImagingJNGLossyAlpha = 40;
{ Sets precompression filter used when saving lossless alpha channels.
For details look at ImagingPNGPreFilter.}
ImagingJNGAlphaPreFilter = 41;
{ Sets ZLib compression level used when saving lossless alpha channels.
For details look at ImagingPNGCompressLevel.}
ImagingJNGAlphaCompressLevel = 42;
{ Defines compression quality used when saving JNG images (and lossy alpha channels).
For details look at ImagingJpegQuality.}
ImagingJNGQuality = 43;
{ Specifies whether JNG images are saved in progressive format.
For details look at ImagingJpegProgressive.}
ImagingJNGProgressive = 44;
{ Specifies whether PGM files are stored in text or in binary format.
Allowed values are 0 (store as text - very! large files) and 1 (save binary).
Default value is 1.}
ImagingPGMSaveBinary = 50;
{ Specifies whether PPM files are stored in text or in binary format.
Allowed values are 0 (store as text - very! large files) and 1 (save binary).
Default value is 1.}
ImagingPPMSaveBinary = 51;
{ Boolean option that specifies whether GIF images with more frames
are animated by Imaging (according to frame disposal methods) or just
raw frames are loaded and sent to user (if you want to animate GIF yourself).
Default value is 1.
Raw frames are 256 color indexed images (ifIndex8), whereas
animated frames are always in 32bit ifA8R8G8B8 format (simplifies animating).}
ImagingGIFLoadAnimated = 56;
{ This option is used when reducing number of colors used in
image (mainly when converting from ARGB image to indexed
format). Mask is 'anded' (bitwise AND) with every pixel's
channel value when creating color histogram. If $FF is used
all 8bits of color channels are used which can result in very
slow proccessing of large images with many colors so you can
use lower masks to speed it up (FC, F8 and F0 are good
choices). Allowed values are in range <0, $FF> and default is
$FE. }
ImagingColorReductionMask = 128;
{ This option can be used to override image data format during image
loading. If set to format different from ifUnknown all loaded images
are automaticaly converted to this format. Useful when you have
many files in various formats but you want them all in one format for
further proccessing. Allowed values are in
range <Ord(Low(TImageFormat)), Ord(High(TImageFormat))> and
default value is ifUnknown.}
ImagingLoadOverrideFormat = 129;
{ This option can be used to override image data format during image
saving. If set to format different from ifUnknown all images
to be saved are automaticaly internaly converted to this format.
Note that image file formats support only a subset of Imaging data formats
so final saved file may in different format than this override.
Allowed values are in range <Ord(Low(TImageFormat)), Ord(High(TImageFormat))>
and default value is ifUnknown.}
ImagingSaveOverrideFormat = 130;
{ Specifies resampling filter used when generating mipmaps. It is used
in GenerateMipMaps low level function and Direct3D and OpenGL extensions.
Allowed values are in range
<Ord(Low(ImagingFormats.TSamplingFilter)), Ord(High(ImagingFormats.TSamplingFilter))>
and default value is 1 (linear filter).}
ImagingMipMapFilter = 131;
{ Returned by GetOption if given Option Id is invalid.}
InvalidOption = -$7FFFFFFF;
{ Indices that can be used to access channel values in array parts
of structures like TColor32Rec. Note that this order can be
used only for ARGB images. For ABGR image you must swap Red and Blue.}
ChannelBlue = 0;
ChannelGreen = 1;
ChannelRed = 2;
ChannelAlpha = 3;
type
{ Enum defining image data format. In formats with more channels,
first channel after "if" is stored in the most significant bits and channel
before end is stored in the least significant.}
TImageFormat = (
ifUnknown = 0,
ifDefault = 1,
{ Indexed formats using palette.}
ifIndex8 = 10,
{ Grayscale/Luminance formats.}
ifGray8 = 40,
ifA8Gray8 = 41,
ifGray16 = 42,
ifGray32 = 43,
ifGray64 = 44,
ifA16Gray16 = 45,
{ ARGB formats.}
ifX5R1G1B1 = 80,
ifR3G3B2 = 81,
ifR5G6B5 = 82,
ifA1R5G5B5 = 83,
ifA4R4G4B4 = 84,
ifX1R5G5B5 = 85,
ifX4R4G4B4 = 86,
ifR8G8B8 = 87,
ifA8R8G8B8 = 88,
ifX8R8G8B8 = 89,
ifR16G16B16 = 90,
ifA16R16G16B16 = 91,
ifB16G16R16 = 92,
ifA16B16G16R16 = 93,
{ Floating point formats.}
ifR32F = 170,
ifA32R32G32B32F = 171,
ifA32B32G32R32F = 172,
ifR16F = 173,
ifA16R16G16B16F = 174,
ifA16B16G16R16F = 175,
{ Special formats.}
ifDXT1 = 220,
ifDXT3 = 221,
ifDXT5 = 222,
ifBTC = 223,
ifATI1N = 224,
ifATI2N = 225);
{ Color value for 32 bit images.}
TColor32 = LongWord;
PColor32 = ^TColor32;
{ Color value for 64 bit images.}
TColor64 = type Int64;
PColor64 = ^TColor64;
{ Color record for 24 bit images, which allows access to individual color
channels.}
TColor24Rec = packed record
case LongInt of
0: (B, G, R: Byte);
1: (Channels: array[0..2] of Byte);
end;
PColor24Rec = ^TColor24Rec;
TColor24RecArray = array[0..MaxInt div SizeOf(TColor24Rec) - 1] of TColor24Rec;
PColor24RecArray = ^TColor24RecArray;
{ Color record for 32 bit images, which allows access to individual color
channels.}
TColor32Rec = packed record
case LongInt of
0: (Color: TColor32);
1: (B, G, R, A: Byte);
2: (Channels: array[0..3] of Byte);
3: (Color24Rec: TColor24Rec);
end;
PColor32Rec = ^TColor32Rec;
TColor32RecArray = array[0..MaxInt div SizeOf(TColor32Rec) - 1] of TColor32Rec;
PColor32RecArray = ^TColor32RecArray;
{ Color record for 48 bit images, which allows access to individual color
channels.}
TColor48Rec = packed record
case LongInt of
0: (B, G, R: Word);
1: (Channels: array[0..2] of Word);
end;
PColor48Rec = ^TColor48Rec;
TColor48RecArray = array[0..MaxInt div SizeOf(TColor48Rec) - 1] of TColor48Rec;
PColor48RecArray = ^TColor48RecArray;
{ Color record for 64 bit images, which allows access to individual color
channels.}
TColor64Rec = packed record
case LongInt of
0: (Color: TColor64);
1: (B, G, R, A: Word);
2: (Channels: array[0..3] of Word);
3: (Color48Rec: TColor48Rec);
end;
PColor64Rec = ^TColor64Rec;
TColor64RecArray = array[0..MaxInt div SizeOf(TColor64Rec) - 1] of TColor64Rec;
PColor64RecArray = ^TColor64RecArray;
{ Color record for 128 bit floating point images, which allows access to
individual color channels.}
TColorFPRec = packed record
case LongInt of
0: (B, G, R, A: Single);
1: (Channels: array[0..3] of Single);
end;
PColorFPRec = ^TColorFPRec;
TColorFPRecArray = array[0..MaxInt div SizeOf(TColorFPRec) - 1] of TColorFPRec;
PColorFPRecArray = ^TColorFPRecArray;
{ 16 bit floating-point value. It has 1 sign bit, 5 exponent bits,
and 10 mantissa bits.}
THalfFloat = type Word;
PHalfFloat = ^THalfFloat;
{ Color record for 64 bit floating point images, which allows access to
individual color channels.}
TColorHFRec = packed record
case LongInt of
0: (B, G, R, A: THalfFloat);
1: (Channels: array[0..3] of THalfFloat);
end;
PColorHFRec = ^TColorHFRec;
TColorHFRecArray = array[0..MaxInt div SizeOf(TColorHFRec) - 1] of TColorHFRec;
PColorHFRecArray = ^TColorHFRecArray;
{ Palette for indexed mode images with 32 bit colors.}
TPalette32 = TColor32RecArray;
TPalette32Size256 = array[0..255] of TColor32Rec;
PPalette32 = ^TPalette32;
{ Palette for indexd mode images with 24 bit colors.}
TPalette24 = TColor24RecArray;
TPalette24Size256 = array[0..255] of TColor24Rec;
PPalette24 = ^TPalette24;
{ Record that stores single image data and information describing it.}
TImageData = packed record
Width: LongInt; // Width of image in pixels
Height: LongInt; // Height of image in pixels
Format: TImageFormat; // Data format of image
Size: LongInt; // Size of image bits in Bytes
Bits: Pointer; // Pointer to memory containing image bits
Palette: PPalette32; // Image palette for indexed images
end;
PImageData = ^TImageData;
{ Pixel format information used in conversions to/from 16 and 8 bit ARGB
image formats.}
TPixelFormatInfo = packed record
ABitCount, RBitCount, GBitCount, BBitCount: Byte;
ABitMask, RBitMask, GBitMask, BBitMask: LongWord;
AShift, RShift, GShift, BShift: Byte;
ARecDiv, RRecDiv, GRecDiv, BRecDiv: Byte;
end;
PPixelFormatInfo = ^TPixelFormatInfo;
PImageFormatInfo = ^TImageFormatInfo;
{ Look at TImageFormatInfo.GetPixelsSize for details.}
TFormatGetPixelsSizeFunc = function(Format: TImageFormat; Width,
Height: LongInt): LongInt;
{ Look at TImageFormatInfo.CheckDimensions for details.}
TFormatCheckDimensionsProc = procedure(Format: TImageFormat; var Width,
Height: LongInt);
{ Function for getting pixel colors. Native pixel is read from Image and
then translated to 32 bit ARGB.}
TGetPixel32Func = function(Bits: Pointer; Info: PImageFormatInfo;
Palette: PPalette32): TColor32Rec;
{ Function for getting pixel colors. Native pixel is read from Image and
then translated to FP ARGB.}
TGetPixelFPFunc = function(Bits: Pointer; Info: PImageFormatInfo;
Palette: PPalette32): TColorFPRec;
{ Procedure for setting pixel colors. Input 32 bit ARGB color is translated to
native format and then written to Image.}
TSetPixel32Proc = procedure(Bits: Pointer; Info: PImageFormatInfo;
Palette: PPalette32;const Color: TColor32Rec);
{ Procedure for setting pixel colors. Input FP ARGB color is translated to
native format and then written to Image.}
TSetPixelFPProc = procedure(Bits: Pointer; Info: PImageFormatInfo;
Palette: PPalette32; const Color: TColorFPRec);
{ Additional information for each TImageFormat value.}
TImageFormatInfo = packed record
Format: TImageFormat; // Format described by this record
Name: array[0..15] of Char; // Symbolic name of format
BytesPerPixel: LongInt; // Number of bytes per pixel (note: it is
// 0 for formats where BitsPerPixel < 8 (e.g. DXT).
// Use GetPixelsSize function to get size of
// image data.
ChannelCount: LongInt; // Number of image channels (R, G, B, A, Gray)
PaletteEntries: LongInt; // Number of palette entries
HasGrayChannel: Boolean; // True if image has grayscale channel
HasAlphaChannel: Boolean; // True if image has alpha channel
IsFloatingPoint: Boolean; // True if image has floating point pixels
UsePixelFormat: Boolean; // True if image uses pixel format
IsRBSwapped: Boolean; // True if Red and Blue channels are swapped
// e.g. A16B16G16R16 has IsRBSwapped True
RBSwapFormat: TImageFormat; // Indicates supported format with swapped
// Red and Blue channels, ifUnknown if such
// format does not exist
IsIndexed: Boolean; // True if image uses palette
IsSpecial: Boolean; // True if image is in special format
PixelFormat: PPixelFormatInfo; // Pixel format structure
GetPixelsSize: TFormatGetPixelsSizeFunc; // Returns size in bytes of
// Width * Height pixels of image
CheckDimensions: TFormatCheckDimensionsProc; // some formats have limited
// values of Width and Height. This
// procedure checks and changes dimensions
// to be valid for given format.
GetPixel32: TGetPixel32Func; // 32bit ARGB pixel get function
GetPixelFP: TGetPixelFPFunc; // FP ARGB pixel get function
SetPixel32: TSetPixel32Proc; // 32bit ARGB pixel set procedure
SetPixelFP: TSetPixelFPProc; // FP ARGB pixel set procedure
SpecialNearestFormat: TImageFormat; // Regular image format used when
// compressing/decompressing special images
// as source/target
end;
{ Handle to list of image data records.}
TImageDataList = Pointer;
PImageDataList = ^TImageDataList;
{ Handle to input/output.}
TImagingHandle = Pointer;
{ Filters used in functions that resize images or their portions.}
TResizeFilter = (
rfNearest = 0,
rfBilinear = 1,
rfBicubic = 2);
{ Seek origin mode for IO function Seek.}
TSeekMode = (
smFromBeginning = 0,
smFromCurrent = 1,
smFromEnd = 2);
{ IO functions used for reading and writing images from/to input/output.}
TOpenReadProc = function(Source: PChar): TImagingHandle; cdecl;
TOpenWriteProc = function(Source: PChar): TImagingHandle; cdecl;
TCloseProc = procedure(Handle: TImagingHandle); cdecl;
TEofProc = function(Handle: TImagingHandle): Boolean; cdecl;
TSeekProc = function(Handle: TImagingHandle; Offset: LongInt; Mode: TSeekMode): LongInt; cdecl;
TTellProc = function(Handle: TImagingHandle): LongInt; cdecl;
TReadProc = function(Handle: TImagingHandle; Buffer: Pointer; Count: LongInt): LongInt; cdecl;
TWriteProc = function(Handle: TImagingHandle; Buffer: Pointer; Count: LongInt): LongInt; cdecl;
implementation
{
File Notes:
-- TODOS ----------------------------------------------------
- add lookup tables to pixel formats for fast conversions
-- 0.24.3 Changes/Bug Fixes ---------------------------------
- Added ifATI1N and ifATI2N image data formats.
-- 0.23 Changes/Bug Fixes -----------------------------------
- Added ifBTC image format and SpecialNearestFormat field
to TImageFormatInfo.
-- 0.21 Changes/Bug Fixes -----------------------------------
- Added option constants for PGM and PPM file formats.
- Added TPalette32Size256 and TPalette24Size256 types.
-- 0.19 Changes/Bug Fixes -----------------------------------
- added ImagingVersionPatch constant so bug fix only releases
can be distinguished from ordinary major/minor releases
- renamed TPixelFormat to TPixelFormatInfo to avoid name collisions
with Graphics.TPixelFormat
- added new image data formats: ifR16F, ifA16R16G16B16F,
ifA16B16G16R16F
- added pixel get/set function pointers to TImageFormatInfo
- added 16bit half float type and color record
- renamed TColorFRec to TColorFPRec (and related types too)
-- 0.17 Changes/Bug Fixes -----------------------------------
- added option ImagingMipMapFilter which now controls resampling filter
used when generating mipmaps
- added TResizeFilter type
- added ChannelCount to TImageFormatInfo
- added new option constants for MNG and JNG images
-- 0.15 Changes/Bug Fixes -----------------------------------
- added RBSwapFormat to TImageFormatInfo for faster conversions
between swapped formats (it just calls SwapChannels now if
RBSwapFormat is not ifUnknown)
- moved TImageFormatInfo and required types from Imaging unit
here, removed TImageFormatShortInfo
- added new options: ImagingLoadOverrideFormat, ImagingSaveOverrideFormat
-- 0.13 Changes/Bug Fixes -----------------------------------
- new ImagingColorReductionMask option added
- new image format added: ifA16Gray16
}
end.
{
$Id: ImagingTypes.pas 171 2009-09-02 01:34:19Z galfar $
Vampyre Imaging Library
by Marek Mauder
http://imaginglib.sourceforge.net
The contents of this file are used with permission, subject to the Mozilla
Public License Version 1.1 (the "License"); you may not use this file except
in compliance with the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL/MPL-1.1.html
Software distributed under the License is distributed on an "AS IS" basis,
WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
the specific language governing rights and limitations under the License.
Alternatively, the contents of this file may be used under the terms of the
GNU Lesser General Public License (the "LGPL License"), in which case the
provisions of the LGPL License are applicable instead of those above.
If you wish to allow use of your version of this file only under the terms
of the LGPL License and not to allow others to use your version of this file
under the MPL, indicate your decision by deleting the provisions above and
replace them with the notice and other provisions required by the LGPL
License. If you do not delete the provisions above, a recipient may use
your version of this file under either the MPL or the LGPL License.
For more information about the LGPL: http://www.gnu.org/copyleft/lesser.html
}
{ This unit contains basic types and constants used by Imaging library.}
unit ImagingTypes;
{$I ImagingOptions.inc}
interface
const
{ Current Major version of Imaging.}
ImagingVersionMajor = 0;
{ Current Minor version of Imaging.}
ImagingVersionMinor = 26;
{ Current patch of Imaging.}
ImagingVersionPatch = 4;
{ Imaging Option Ids whose values can be set/get by SetOption/
GetOption functions.}
{ Defines Jpeg compression quality, ranges from 1 (ugly/small) to 100 (nice/large).
Default value is 90.}
ImagingJpegQuality = 10;
{ Specifies whether Jpeg images are saved in progressive format,
can be 0 or 1. Default value is 0.}
ImagingJpegProgressive = 11;
{ Specifies whether Windows Bitmaps are saved using RLE compression
(only for 1/4/8 bit images), can be 0 or 1. Default value is 1.}
ImagingBitmapRLE = 12;
{ Specifies whether Targa images are saved using RLE compression,
can be 0 or 1. Default value is 0.}
ImagingTargaRLE = 13;
{ Value of this option is non-zero if last loaded DDS file was cube map.}
ImagingDDSLoadedCubeMap = 14;
{ Value of this option is non-zero if last loaded DDS file was volume texture.}
ImagingDDSLoadedVolume = 15;
{ Value of this option is number of mipmap levels of last loaded DDS image.}
ImagingDDSLoadedMipMapCount = 16;
{ Value of this option is depth (slices of volume texture or faces of
cube map) of last loaded DDS image.}
ImagingDDSLoadedDepth = 17;
{ If it is non-zero next saved DDS file should be stored as cube map.}
ImagingDDSSaveCubeMap = 18;
{ If it is non-zero next saved DDS file should be stored as volume texture.}
ImagingDDSSaveVolume = 19;
{ Sets the number of mipmaps which should be stored in the next saved DDS file.
Only applies to cube maps and volumes, ordinary 2D textures save all
levels present in input.}
ImagingDDSSaveMipMapCount = 20;
{ Sets the depth (slices of volume texture or faces of cube map)
of the next saved DDS file.}
ImagingDDSSaveDepth = 21;
{ Sets precompression filter used when saving PNG images. Allowed values
are: 0 (none), 1 (sub), 2 (up), 3 (average), 4 (paeth),
5 (use 0 for indexed/gray images and 4 for RGB/ARGB images),
6 (adaptive filtering - use best filter for each scanline - very slow).
Note that filters 3 and 4 are much slower than filters 1 and 2.
Default value is 5.}
ImagingPNGPreFilter = 25;
{ Sets ZLib compression level used when saving PNG images.
Allowed values are in range 0 (no compresstion) to 9 (best compression).
Default value is 5.}
ImagingPNGCompressLevel = 26;
{ Boolean option that specifies whether PNG images with more frames (APNG format)
are animated by Imaging (according to frame disposal/blend methods) or just
raw frames are loaded and sent to user (if you want to animate APNG yourself).
Default value is 1.}
ImagingPNGLoadAnimated = 27;
{ Specifies whether MNG animation frames are saved with lossy or lossless
compression. Lossless frames are saved as PNG images and lossy frames are
saved as JNG images. Allowed values are 0 (False) and 1 (True).
Default value is 0.}
ImagingMNGLossyCompression = 28;
{ Defines whether alpha channel of lossy compressed MNG frames
(when ImagingMNGLossyCompression is 1) is lossy compressed too.
Allowed values are 0 (False) and 1 (True). Default value is 0.}
ImagingMNGLossyAlpha = 29;
{ Sets precompression filter used when saving MNG frames as PNG images.
For details look at ImagingPNGPreFilter.}
ImagingMNGPreFilter = 30;
{ Sets ZLib compression level used when saving MNG frames as PNG images.
For details look at ImagingPNGCompressLevel.}
ImagingMNGCompressLevel = 31;
{ Specifies compression quality used when saving MNG frames as JNG images.
For details look at ImagingJpegQuality.}
ImagingMNGQuality = 32;
{ Specifies whether images are saved in progressive format when saving MNG
frames as JNG images. For details look at ImagingJpegProgressive.}
ImagingMNGProgressive = 33;
{ Specifies whether alpha channels of JNG images are lossy compressed.
Allowed values are 0 (False) and 1 (True). Default value is 0.}
ImagingJNGLossyAlpha = 40;
{ Sets precompression filter used when saving lossless alpha channels.
For details look at ImagingPNGPreFilter.}
ImagingJNGAlphaPreFilter = 41;
{ Sets ZLib compression level used when saving lossless alpha channels.
For details look at ImagingPNGCompressLevel.}
ImagingJNGAlphaCompressLevel = 42;
{ Defines compression quality used when saving JNG images (and lossy alpha channels).
For details look at ImagingJpegQuality.}
ImagingJNGQuality = 43;
{ Specifies whether JNG images are saved in progressive format.
For details look at ImagingJpegProgressive.}
ImagingJNGProgressive = 44;
{ Specifies whether PGM files are stored in text or in binary format.
Allowed values are 0 (store as text - very! large files) and 1 (save binary).
Default value is 1.}
ImagingPGMSaveBinary = 50;
{ Specifies whether PPM files are stored in text or in binary format.
Allowed values are 0 (store as text - very! large files) and 1 (save binary).
Default value is 1.}
ImagingPPMSaveBinary = 51;
{ Boolean option that specifies whether GIF images with more frames
are animated by Imaging (according to frame disposal methods) or just
raw frames are loaded and sent to user (if you want to animate GIF yourself).
Default value is 1.
Raw frames are 256 color indexed images (ifIndex8), whereas
animated frames are always in 32bit ifA8R8G8B8 format (simplifies animating).}
ImagingGIFLoadAnimated = 56;
{ This option is used when reducing number of colors used in
image (mainly when converting from ARGB image to indexed
format). Mask is 'anded' (bitwise AND) with every pixel's
channel value when creating color histogram. If $FF is used
all 8bits of color channels are used which can result in very
slow proccessing of large images with many colors so you can
use lower masks to speed it up (FC, F8 and F0 are good
choices). Allowed values are in range <0, $FF> and default is
$FE. }
ImagingColorReductionMask = 128;
{ This option can be used to override image data format during image
loading. If set to format different from ifUnknown all loaded images
are automaticaly converted to this format. Useful when you have
many files in various formats but you want them all in one format for
further proccessing. Allowed values are in
range <Ord(Low(TImageFormat)), Ord(High(TImageFormat))> and
default value is ifUnknown.}
ImagingLoadOverrideFormat = 129;
{ This option can be used to override image data format during image
saving. If set to format different from ifUnknown all images
to be saved are automaticaly internaly converted to this format.
Note that image file formats support only a subset of Imaging data formats
so final saved file may in different format than this override.
Allowed values are in range <Ord(Low(TImageFormat)), Ord(High(TImageFormat))>
and default value is ifUnknown.}
ImagingSaveOverrideFormat = 130;
{ Specifies resampling filter used when generating mipmaps. It is used
in GenerateMipMaps low level function and Direct3D and OpenGL extensions.
Allowed values are in range
<Ord(Low(ImagingFormats.TSamplingFilter)), Ord(High(ImagingFormats.TSamplingFilter))>
and default value is 1 (linear filter).}
ImagingMipMapFilter = 131;
{ Returned by GetOption if given Option Id is invalid.}
InvalidOption = -$7FFFFFFF;
{ Indices that can be used to access channel values in array parts
of structures like TColor32Rec. Note that this order can be
used only for ARGB images. For ABGR image you must swap Red and Blue.}
ChannelBlue = 0;
ChannelGreen = 1;
ChannelRed = 2;
ChannelAlpha = 3;
type
{ Enum defining image data format. In formats with more channels,
first channel after "if" is stored in the most significant bits and channel
before end is stored in the least significant.}
TImageFormat = (
ifUnknown = 0,
ifDefault = 1,
{ Indexed formats using palette.}
ifIndex8 = 10,
{ Grayscale/Luminance formats.}
ifGray8 = 40,
ifA8Gray8 = 41,
ifGray16 = 42,
ifGray32 = 43,
ifGray64 = 44,
ifA16Gray16 = 45,
{ ARGB formats.}
ifX5R1G1B1 = 80,
ifR3G3B2 = 81,
ifR5G6B5 = 82,
ifA1R5G5B5 = 83,
ifA4R4G4B4 = 84,
ifX1R5G5B5 = 85,
ifX4R4G4B4 = 86,
ifR8G8B8 = 87,
ifA8R8G8B8 = 88,
ifX8R8G8B8 = 89,
ifR16G16B16 = 90,
ifA16R16G16B16 = 91,
ifB16G16R16 = 92,
ifA16B16G16R16 = 93,
{ Floating point formats.}
ifR32F = 170,
ifA32R32G32B32F = 171,
ifA32B32G32R32F = 172,
ifR16F = 173,
ifA16R16G16B16F = 174,
ifA16B16G16R16F = 175,
{ Special formats.}
ifDXT1 = 220,
ifDXT3 = 221,
ifDXT5 = 222,
ifBTC = 223,
ifATI1N = 224,
ifATI2N = 225);
{ Color value for 32 bit images.}
TColor32 = LongWord;
PColor32 = ^TColor32;
{ Color value for 64 bit images.}
TColor64 = type Int64;
PColor64 = ^TColor64;
{ Color record for 24 bit images, which allows access to individual color
channels.}
TColor24Rec = packed record
case LongInt of
0: (B, G, R: Byte);
1: (Channels: array[0..2] of Byte);
end;
PColor24Rec = ^TColor24Rec;
TColor24RecArray = array[0..MaxInt div SizeOf(TColor24Rec) - 1] of TColor24Rec;
PColor24RecArray = ^TColor24RecArray;
{ Color record for 32 bit images, which allows access to individual color
channels.}
TColor32Rec = packed record
case LongInt of
0: (Color: TColor32);
1: (B, G, R, A: Byte);
2: (Channels: array[0..3] of Byte);
3: (Color24Rec: TColor24Rec);
end;
PColor32Rec = ^TColor32Rec;
TColor32RecArray = array[0..MaxInt div SizeOf(TColor32Rec) - 1] of TColor32Rec;
PColor32RecArray = ^TColor32RecArray;
{ Color record for 48 bit images, which allows access to individual color
channels.}
TColor48Rec = packed record
case LongInt of
0: (B, G, R: Word);
1: (Channels: array[0..2] of Word);
end;
PColor48Rec = ^TColor48Rec;
TColor48RecArray = array[0..MaxInt div SizeOf(TColor48Rec) - 1] of TColor48Rec;
PColor48RecArray = ^TColor48RecArray;
{ Color record for 64 bit images, which allows access to individual color
channels.}
TColor64Rec = packed record
case LongInt of
0: (Color: TColor64);
1: (B, G, R, A: Word);
2: (Channels: array[0..3] of Word);
3: (Color48Rec: TColor48Rec);
end;
PColor64Rec = ^TColor64Rec;
TColor64RecArray = array[0..MaxInt div SizeOf(TColor64Rec) - 1] of TColor64Rec;
PColor64RecArray = ^TColor64RecArray;
{ Color record for 128 bit floating point images, which allows access to
individual color channels.}
TColorFPRec = packed record
case LongInt of
0: (B, G, R, A: Single);
1: (Channels: array[0..3] of Single);
end;
PColorFPRec = ^TColorFPRec;
TColorFPRecArray = array[0..MaxInt div SizeOf(TColorFPRec) - 1] of TColorFPRec;
PColorFPRecArray = ^TColorFPRecArray;
{ 16 bit floating-point value. It has 1 sign bit, 5 exponent bits,
and 10 mantissa bits.}
THalfFloat = type Word;
PHalfFloat = ^THalfFloat;
{ Color record for 64 bit floating point images, which allows access to
individual color channels.}
TColorHFRec = packed record
case LongInt of
0: (B, G, R, A: THalfFloat);
1: (Channels: array[0..3] of THalfFloat);
end;
PColorHFRec = ^TColorHFRec;
TColorHFRecArray = array[0..MaxInt div SizeOf(TColorHFRec) - 1] of TColorHFRec;
PColorHFRecArray = ^TColorHFRecArray;
{ Palette for indexed mode images with 32 bit colors.}
TPalette32 = TColor32RecArray;
TPalette32Size256 = array[0..255] of TColor32Rec;
PPalette32 = ^TPalette32;
{ Palette for indexd mode images with 24 bit colors.}
TPalette24 = TColor24RecArray;
TPalette24Size256 = array[0..255] of TColor24Rec;
PPalette24 = ^TPalette24;
{ Record that stores single image data and information describing it.}
TImageData = packed record
Width: LongInt; // Width of image in pixels
Height: LongInt; // Height of image in pixels
Format: TImageFormat; // Data format of image
Size: LongInt; // Size of image bits in Bytes
Bits: Pointer; // Pointer to memory containing image bits
Palette: PPalette32; // Image palette for indexed images
end;
PImageData = ^TImageData;
{ Pixel format information used in conversions to/from 16 and 8 bit ARGB
image formats.}
TPixelFormatInfo = packed record
ABitCount, RBitCount, GBitCount, BBitCount: Byte;
ABitMask, RBitMask, GBitMask, BBitMask: LongWord;
AShift, RShift, GShift, BShift: Byte;
ARecDiv, RRecDiv, GRecDiv, BRecDiv: Byte;
end;
PPixelFormatInfo = ^TPixelFormatInfo;
PImageFormatInfo = ^TImageFormatInfo;
{ Look at TImageFormatInfo.GetPixelsSize for details.}
TFormatGetPixelsSizeFunc = function(Format: TImageFormat; Width,
Height: LongInt): LongInt;
{ Look at TImageFormatInfo.CheckDimensions for details.}
TFormatCheckDimensionsProc = procedure(Format: TImageFormat; var Width,
Height: LongInt);
{ Function for getting pixel colors. Native pixel is read from Image and
then translated to 32 bit ARGB.}
TGetPixel32Func = function(Bits: Pointer; Info: PImageFormatInfo;
Palette: PPalette32): TColor32Rec;
{ Function for getting pixel colors. Native pixel is read from Image and
then translated to FP ARGB.}
TGetPixelFPFunc = function(Bits: Pointer; Info: PImageFormatInfo;
Palette: PPalette32): TColorFPRec;
{ Procedure for setting pixel colors. Input 32 bit ARGB color is translated to
native format and then written to Image.}
TSetPixel32Proc = procedure(Bits: Pointer; Info: PImageFormatInfo;
Palette: PPalette32;const Color: TColor32Rec);
{ Procedure for setting pixel colors. Input FP ARGB color is translated to
native format and then written to Image.}
TSetPixelFPProc = procedure(Bits: Pointer; Info: PImageFormatInfo;
Palette: PPalette32; const Color: TColorFPRec);
{ Additional information for each TImageFormat value.}
TImageFormatInfo = packed record
Format: TImageFormat; // Format described by this record
Name: array[0..15] of Char; // Symbolic name of format
BytesPerPixel: LongInt; // Number of bytes per pixel (note: it is
// 0 for formats where BitsPerPixel < 8 (e.g. DXT).
// Use GetPixelsSize function to get size of
// image data.
ChannelCount: LongInt; // Number of image channels (R, G, B, A, Gray)
PaletteEntries: LongInt; // Number of palette entries
HasGrayChannel: Boolean; // True if image has grayscale channel
HasAlphaChannel: Boolean; // True if image has alpha channel
IsFloatingPoint: Boolean; // True if image has floating point pixels
UsePixelFormat: Boolean; // True if image uses pixel format
IsRBSwapped: Boolean; // True if Red and Blue channels are swapped
// e.g. A16B16G16R16 has IsRBSwapped True
RBSwapFormat: TImageFormat; // Indicates supported format with swapped
// Red and Blue channels, ifUnknown if such
// format does not exist
IsIndexed: Boolean; // True if image uses palette
IsSpecial: Boolean; // True if image is in special format
PixelFormat: PPixelFormatInfo; // Pixel format structure
GetPixelsSize: TFormatGetPixelsSizeFunc; // Returns size in bytes of
// Width * Height pixels of image
CheckDimensions: TFormatCheckDimensionsProc; // some formats have limited
// values of Width and Height. This
// procedure checks and changes dimensions
// to be valid for given format.
GetPixel32: TGetPixel32Func; // 32bit ARGB pixel get function
GetPixelFP: TGetPixelFPFunc; // FP ARGB pixel get function
SetPixel32: TSetPixel32Proc; // 32bit ARGB pixel set procedure
SetPixelFP: TSetPixelFPProc; // FP ARGB pixel set procedure
SpecialNearestFormat: TImageFormat; // Regular image format used when
// compressing/decompressing special images
// as source/target
end;
{ Handle to list of image data records.}
TImageDataList = Pointer;
PImageDataList = ^TImageDataList;
{ Handle to input/output.}
TImagingHandle = Pointer;
{ Filters used in functions that resize images or their portions.}
TResizeFilter = (
rfNearest = 0,
rfBilinear = 1,
rfBicubic = 2);
{ Seek origin mode for IO function Seek.}
TSeekMode = (
smFromBeginning = 0,
smFromCurrent = 1,
smFromEnd = 2);
{ IO functions used for reading and writing images from/to input/output.}
TOpenReadProc = function(Source: PChar): TImagingHandle; cdecl;
TOpenWriteProc = function(Source: PChar): TImagingHandle; cdecl;
TCloseProc = procedure(Handle: TImagingHandle); cdecl;
TEofProc = function(Handle: TImagingHandle): Boolean; cdecl;
TSeekProc = function(Handle: TImagingHandle; Offset: LongInt; Mode: TSeekMode): LongInt; cdecl;
TTellProc = function(Handle: TImagingHandle): LongInt; cdecl;
TReadProc = function(Handle: TImagingHandle; Buffer: Pointer; Count: LongInt): LongInt; cdecl;
TWriteProc = function(Handle: TImagingHandle; Buffer: Pointer; Count: LongInt): LongInt; cdecl;
implementation
{
File Notes:
-- TODOS ----------------------------------------------------
- add lookup tables to pixel formats for fast conversions
-- 0.24.3 Changes/Bug Fixes ---------------------------------
- Added ifATI1N and ifATI2N image data formats.
-- 0.23 Changes/Bug Fixes -----------------------------------
- Added ifBTC image format and SpecialNearestFormat field
to TImageFormatInfo.
-- 0.21 Changes/Bug Fixes -----------------------------------
- Added option constants for PGM and PPM file formats.
- Added TPalette32Size256 and TPalette24Size256 types.
-- 0.19 Changes/Bug Fixes -----------------------------------
- added ImagingVersionPatch constant so bug fix only releases
can be distinguished from ordinary major/minor releases
- renamed TPixelFormat to TPixelFormatInfo to avoid name collisions
with Graphics.TPixelFormat
- added new image data formats: ifR16F, ifA16R16G16B16F,
ifA16B16G16R16F
- added pixel get/set function pointers to TImageFormatInfo
- added 16bit half float type and color record
- renamed TColorFRec to TColorFPRec (and related types too)
-- 0.17 Changes/Bug Fixes -----------------------------------
- added option ImagingMipMapFilter which now controls resampling filter
used when generating mipmaps
- added TResizeFilter type
- added ChannelCount to TImageFormatInfo
- added new option constants for MNG and JNG images
-- 0.15 Changes/Bug Fixes -----------------------------------
- added RBSwapFormat to TImageFormatInfo for faster conversions
between swapped formats (it just calls SwapChannels now if
RBSwapFormat is not ifUnknown)
- moved TImageFormatInfo and required types from Imaging unit
here, removed TImageFormatShortInfo
- added new options: ImagingLoadOverrideFormat, ImagingSaveOverrideFormat
-- 0.13 Changes/Bug Fixes -----------------------------------
- new ImagingColorReductionMask option added
- new image format added: ifA16Gray16
}
end.

644
Imaging/ImagingUtility.pas
View File

@@ -106,13 +106,13 @@ type
TChar16 = array[0..15] of AnsiChar;
{ Options for BuildFileList function:
flFullNames - file names in result will have full path names
(ExtractFileDir(Path) + FileName)
flRelNames - file names in result will have names relative to
ExtractFileDir(Path) dir
flRecursive - adds files in subdirectories found in Path.}
TFileListOption = (flFullNames, flRelNames, flRecursive);
TFileListOptions = set of TFileListOption;
flFullNames - file names in result will have full path names
(ExtractFileDir(Path) + FileName)
flRelNames - file names in result will have names relative to
ExtractFileDir(Path) dir
flRecursive - adds files in subdirectories found in Path.}
TFileListOption = (flFullNames, flRelNames, flRecursive);
TFileListOptions = set of TFileListOption;
{ Frees class instance and sets its reference to nil.}
@@ -137,35 +137,35 @@ function GetAppExe: string;
path delimiter at the end.}
function GetAppDir: string;
{ Returns True if FileName matches given Mask with optional case sensitivity.
Mask can contain ? and * special characters: ? matches
one character, * matches zero or more characters.}
Mask can contain ? and * special characters: ? matches
one character, * matches zero or more characters.}
function MatchFileNameMask(const FileName, Mask: string; CaseSensitive: Boolean = False): Boolean;
{ This function fills Files string list with names of files found
with FindFirst/FindNext functions (See details on Path/Atrr here).
- BuildFileList('c:\*.*', faAnyFile, List, [flRecursive]) returns
list of all files (only name.ext - no path) on C drive
- BuildFileList('d:\*.*', faDirectory, List, [flFullNames]) returns
list of all directories (d:\dirxxx) in root of D drive.}
function BuildFileList(Path: string; Attr: LongInt; Files: TStrings;
Options: TFileListOptions = []): Boolean;
{ Similar to RTL's Pos function but with optional Offset where search will start.
This function is in the RTL StrUtils unit but }
function PosEx(const SubStr, S: string; Offset: LongInt = 1): LongInt;
{ Same as PosEx but without case sensitivity.}
function PosNoCase(const SubStr, S: string; Offset: LongInt = 1): LongInt; {$IFDEF USE_INLINE}inline;{$ENDIF}
{ Returns a sub-string from S which is followed by
Sep separator and deletes the sub-string from S including the separator.}
function StrToken(var S: string; Sep: Char): string;
{ Same as StrToken but searches from the end of S string.}
function StrTokenEnd(var S: string; Sep: Char): string;
{ Fills instance of TStrings with tokens from string S where tokens are separated by
one of Seps characters.}
procedure StrTokensToList(const S: string; Sep: Char; Tokens: TStrings);
{ Returns string representation of integer number (with digit grouping).}
function IntToStrFmt(const I: Int64): string; {$IFDEF USE_INLINE}inline;{$ENDIF}
{ Returns string representation of float number (with digit grouping).}
function FloatToStrFmt(const F: Double; Precision: Integer = 2): string; {$IFDEF USE_INLINE}inline;{$ENDIF}
with FindFirst/FindNext functions (See details on Path/Atrr here).
- BuildFileList('c:\*.*', faAnyFile, List, [flRecursive]) returns
list of all files (only name.ext - no path) on C drive
- BuildFileList('d:\*.*', faDirectory, List, [flFullNames]) returns
list of all directories (d:\dirxxx) in root of D drive.}
function BuildFileList(Path: string; Attr: LongInt; Files: TStrings;
Options: TFileListOptions = []): Boolean;
{ Similar to RTL's Pos function but with optional Offset where search will start.
This function is in the RTL StrUtils unit but }
function PosEx(const SubStr, S: string; Offset: LongInt = 1): LongInt;
{ Same as PosEx but without case sensitivity.}
function PosNoCase(const SubStr, S: string; Offset: LongInt = 1): LongInt; {$IFDEF USE_INLINE}inline;{$ENDIF}
{ Returns a sub-string from S which is followed by
Sep separator and deletes the sub-string from S including the separator.}
function StrToken(var S: string; Sep: Char): string;
{ Same as StrToken but searches from the end of S string.}
function StrTokenEnd(var S: string; Sep: Char): string;
{ Fills instance of TStrings with tokens from string S where tokens are separated by
one of Seps characters.}
procedure StrTokensToList(const S: string; Sep: Char; Tokens: TStrings);
{ Returns string representation of integer number (with digit grouping).}
function IntToStrFmt(const I: Int64): string; {$IFDEF USE_INLINE}inline;{$ENDIF}
{ Returns string representation of float number (with digit grouping).}
function FloatToStrFmt(const F: Double; Precision: Integer = 2): string; {$IFDEF USE_INLINE}inline;{$ENDIF}
{ Clamps integer value to range <Min, Max>}
function ClampInt(Number: LongInt; Min, Max: LongInt): LongInt; {$IFDEF USE_INLINE}inline;{$ENDIF}
{ Clamps float value to range <Min, Max>}
@@ -402,7 +402,7 @@ end;
function GetTimeMilliseconds: Int64;
begin
Result := GetTimeMicroseconds div 1000;
Result := GetTimeMicroseconds div 1000;
end;
function GetFileExt(const FileName: string): string;
@@ -444,269 +444,269 @@ begin
end;
function MatchFileNameMask(const FileName, Mask: string; CaseSensitive: Boolean): Boolean;
var
MaskLen, KeyLen : LongInt;
function CharMatch(A, B: Char): Boolean;
begin
if CaseSensitive then
Result := A = B
else
Result := AnsiUpperCase (A) = AnsiUpperCase (B);
end;
function MatchAt(MaskPos, KeyPos: LongInt): Boolean;
begin
while (MaskPos <= MaskLen) and (KeyPos <= KeyLen) do
begin
case Mask[MaskPos] of
'?' :
begin
Inc(MaskPos);
Inc(KeyPos);
end;
'*' :
begin
while (MaskPos <= MaskLen) and (Mask[MaskPos] = '*') do
Inc(MaskPos);
if MaskPos > MaskLen then
begin
Result := True;
Exit;
end;
repeat
if MatchAt(MaskPos, KeyPos) then
begin
Result := True;
Exit;
end;
Inc(KeyPos);
until KeyPos > KeyLen;
Result := False;
Exit;
end;
else
if not CharMatch(Mask[MaskPos], FileName[KeyPos]) then
begin
Result := False;
Exit;
end
else
begin
Inc(MaskPos);
Inc(KeyPos);
end;
end;
end;
while (MaskPos <= MaskLen) and (Mask[MaskPos] in ['?', '*']) do
Inc(MaskPos);
if (MaskPos <= MaskLen) or (KeyPos <= KeyLen) then
begin
Result := False;
Exit;
end;
Result := True;
end;
begin
MaskLen := Length(Mask);
KeyLen := Length(FileName);
if MaskLen = 0 then
begin
Result := True;
Exit;
end;
Result := MatchAt(1, 1);
var
MaskLen, KeyLen : LongInt;
function CharMatch(A, B: Char): Boolean;
begin
if CaseSensitive then
Result := A = B
else
Result := AnsiUpperCase (A) = AnsiUpperCase (B);
end;
function MatchAt(MaskPos, KeyPos: LongInt): Boolean;
begin
while (MaskPos <= MaskLen) and (KeyPos <= KeyLen) do
begin
case Mask[MaskPos] of
'?' :
begin
Inc(MaskPos);
Inc(KeyPos);
end;
'*' :
begin
while (MaskPos <= MaskLen) and (Mask[MaskPos] = '*') do
Inc(MaskPos);
if MaskPos > MaskLen then
begin
Result := True;
Exit;
end;
repeat
if MatchAt(MaskPos, KeyPos) then
begin
Result := True;
Exit;
end;
Inc(KeyPos);
until KeyPos > KeyLen;
Result := False;
Exit;
end;
else
if not CharMatch(Mask[MaskPos], FileName[KeyPos]) then
begin
Result := False;
Exit;
end
else
begin
Inc(MaskPos);
Inc(KeyPos);
end;
end;
end;
while (MaskPos <= MaskLen) and (Mask[MaskPos] in ['?', '*']) do
Inc(MaskPos);
if (MaskPos <= MaskLen) or (KeyPos <= KeyLen) then
begin
Result := False;
Exit;
end;
Result := True;
end;
begin
MaskLen := Length(Mask);
KeyLen := Length(FileName);
if MaskLen = 0 then
begin
Result := True;
Exit;
end;
Result := MatchAt(1, 1);
end;
function BuildFileList(Path: string; Attr: LongInt;
Files: TStrings; Options: TFileListOptions): Boolean;
var
FileMask: string;
RootDir: string;
Folders: TStringList;
CurrentItem: LongInt;
Counter: LongInt;
LocAttr: LongInt;
procedure BuildFolderList;
var
FindInfo: TSearchRec;
Rslt: LongInt;
begin
Counter := Folders.Count - 1;
CurrentItem := 0;
while CurrentItem <= Counter do
begin
// Searching for subfolders
Rslt := SysUtils.FindFirst(Folders[CurrentItem] + '*', faDirectory, FindInfo);
try
while Rslt = 0 do
begin
if (FindInfo.Name <> '.') and (FindInfo.Name <> '..') and
(FindInfo.Attr and faDirectory = faDirectory) then
Folders.Add(Folders[CurrentItem] + FindInfo.Name + PathDelim);
Rslt := SysUtils.FindNext(FindInfo);
end;
finally
SysUtils.FindClose(FindInfo);
end;
Counter := Folders.Count - 1;
Inc(CurrentItem);
end;
end;
procedure FillFileList(CurrentCounter: LongInt);
var
FindInfo: TSearchRec;
Res: LongInt;
CurrentFolder: string;
begin
CurrentFolder := Folders[CurrentCounter];
Res := SysUtils.FindFirst(CurrentFolder + FileMask, LocAttr, FindInfo);
if flRelNames in Options then
CurrentFolder := ExtractRelativePath(RootDir, CurrentFolder);
try
while Res = 0 do
begin
if (FindInfo.Name <> '.') and (FindInfo.Name <> '..') then
begin
if (flFullNames in Options) or (flRelNames in Options) then
Files.Add(CurrentFolder + FindInfo.Name)
else
Files.Add(FindInfo.Name);
end;
Res := SysUtils.FindNext(FindInfo);
end;
finally
SysUtils.FindClose(FindInfo);
end;
end;
begin
FileMask := ExtractFileName(Path);
RootDir := ExtractFilePath(Path);
Folders := TStringList.Create;
Folders.Add(RootDir);
Files.Clear;
{$IFDEF DCC}
{$WARN SYMBOL_PLATFORM OFF}
{$ENDIF}
if Attr = faAnyFile then
LocAttr := faSysFile or faHidden or faArchive or faReadOnly
else
LocAttr := Attr;
{$IFDEF DCC}
{$WARN SYMBOL_PLATFORM ON}
{$ENDIF}
// Here's the recursive search for nested folders
if flRecursive in Options then
BuildFolderList;
if Attr <> faDirectory then
for Counter := 0 to Folders.Count - 1 do
FillFileList(Counter)
else
Files.AddStrings(Folders);
Folders.Free;
Result := True;
end;
function PosEx(const SubStr, S: string; Offset: LongInt = 1): LongInt;
var
I, X: LongInt;
Len, LenSubStr: LongInt;
begin
I := Offset;
LenSubStr := Length(SubStr);
Len := Length(S) - LenSubStr + 1;
while I <= Len do
begin
if S[I] = SubStr[1] then
begin
X := 1;
while (X < LenSubStr) and (S[I + X] = SubStr[X + 1]) do
Inc(X);
if (X = LenSubStr) then
begin
Result := I;
Exit;
end;
end;
Inc(I);
end;
Result := 0;
end;
function PosNoCase(const SubStr, S: string; Offset: LongInt): LongInt;
begin
Result := PosEx(AnsiLowerCase(SubStr), AnsiLowerCase(S), Offset);
end;
function StrToken(var S: string; Sep: Char): string;
var
I: LongInt;
begin
I := Pos(Sep, S);
if I <> 0 then
begin
Result := Copy(S, 1, I - 1);
Delete(S, 1, I);
end
else
begin
Result := S;
S := '';
end;
end;
function StrTokenEnd(var S: string; Sep: Char): string;
var
I, J: LongInt;
begin
J := 0;
I := Pos(Sep, S);
while I <> 0 do
begin
J := I;
I := PosEx(Sep, S, J + 1);
end;
if J <> 0 then
begin
Result := Copy(S, J + 1, MaxInt);
Delete(S, J, MaxInt);
end
else
begin
Result := S;
S := '';
end;
end;
procedure StrTokensToList(const S: string; Sep: Char; Tokens: TStrings);
var
Token, Str: string;
begin
Tokens.Clear;
Str := S;
while Str <> '' do
begin
Token := StrToken(Str, Sep);
Tokens.Add(Token);
end;
end;
function IntToStrFmt(const I: Int64): string;
begin
Result := Format('%.0n', [I * 1.0]);
end;
function FloatToStrFmt(const F: Double; Precision: Integer): string;
begin
Result := Format('%.' + IntToStr(Precision) + 'n', [F]);
end;
Files: TStrings; Options: TFileListOptions): Boolean;
var
FileMask: string;
RootDir: string;
Folders: TStringList;
CurrentItem: LongInt;
Counter: LongInt;
LocAttr: LongInt;
procedure BuildFolderList;
var
FindInfo: TSearchRec;
Rslt: LongInt;
begin
Counter := Folders.Count - 1;
CurrentItem := 0;
while CurrentItem <= Counter do
begin
// Searching for subfolders
Rslt := SysUtils.FindFirst(Folders[CurrentItem] + '*', faDirectory, FindInfo);
try
while Rslt = 0 do
begin
if (FindInfo.Name <> '.') and (FindInfo.Name <> '..') and
(FindInfo.Attr and faDirectory = faDirectory) then
Folders.Add(Folders[CurrentItem] + FindInfo.Name + PathDelim);
Rslt := SysUtils.FindNext(FindInfo);
end;
finally
SysUtils.FindClose(FindInfo);
end;
Counter := Folders.Count - 1;
Inc(CurrentItem);
end;
end;
procedure FillFileList(CurrentCounter: LongInt);
var
FindInfo: TSearchRec;
Res: LongInt;
CurrentFolder: string;
begin
CurrentFolder := Folders[CurrentCounter];
Res := SysUtils.FindFirst(CurrentFolder + FileMask, LocAttr, FindInfo);
if flRelNames in Options then
CurrentFolder := ExtractRelativePath(RootDir, CurrentFolder);
try
while Res = 0 do
begin
if (FindInfo.Name <> '.') and (FindInfo.Name <> '..') then
begin
if (flFullNames in Options) or (flRelNames in Options) then
Files.Add(CurrentFolder + FindInfo.Name)
else
Files.Add(FindInfo.Name);
end;
Res := SysUtils.FindNext(FindInfo);
end;
finally
SysUtils.FindClose(FindInfo);
end;
end;
begin
FileMask := ExtractFileName(Path);
RootDir := ExtractFilePath(Path);
Folders := TStringList.Create;
Folders.Add(RootDir);
Files.Clear;
{$IFDEF DCC}
{$WARN SYMBOL_PLATFORM OFF}
{$ENDIF}
if Attr = faAnyFile then
LocAttr := faSysFile or faHidden or faArchive or faReadOnly
else
LocAttr := Attr;
{$IFDEF DCC}
{$WARN SYMBOL_PLATFORM ON}
{$ENDIF}
// Here's the recursive search for nested folders
if flRecursive in Options then
BuildFolderList;
if Attr <> faDirectory then
for Counter := 0 to Folders.Count - 1 do
FillFileList(Counter)
else
Files.AddStrings(Folders);
Folders.Free;
Result := True;
end;
function PosEx(const SubStr, S: string; Offset: LongInt = 1): LongInt;
var
I, X: LongInt;
Len, LenSubStr: LongInt;
begin
I := Offset;
LenSubStr := Length(SubStr);
Len := Length(S) - LenSubStr + 1;
while I <= Len do
begin
if S[I] = SubStr[1] then
begin
X := 1;
while (X < LenSubStr) and (S[I + X] = SubStr[X + 1]) do
Inc(X);
if (X = LenSubStr) then
begin
Result := I;
Exit;
end;
end;
Inc(I);
end;
Result := 0;
end;
function PosNoCase(const SubStr, S: string; Offset: LongInt): LongInt;
begin
Result := PosEx(AnsiLowerCase(SubStr), AnsiLowerCase(S), Offset);
end;
function StrToken(var S: string; Sep: Char): string;
var
I: LongInt;
begin
I := Pos(Sep, S);
if I <> 0 then
begin
Result := Copy(S, 1, I - 1);
Delete(S, 1, I);
end
else
begin
Result := S;
S := '';
end;
end;
function StrTokenEnd(var S: string; Sep: Char): string;
var
I, J: LongInt;
begin
J := 0;
I := Pos(Sep, S);
while I <> 0 do
begin
J := I;
I := PosEx(Sep, S, J + 1);
end;
if J <> 0 then
begin
Result := Copy(S, J + 1, MaxInt);
Delete(S, J, MaxInt);
end
else
begin
Result := S;
S := '';
end;
end;
procedure StrTokensToList(const S: string; Sep: Char; Tokens: TStrings);
var
Token, Str: string;
begin
Tokens.Clear;
Str := S;
while Str <> '' do
begin
Token := StrToken(Str, Sep);
Tokens.Add(Token);
end;
end;
function IntToStrFmt(const I: Int64): string;
begin
Result := Format('%.0n', [I * 1.0]);
end;
function FloatToStrFmt(const F: Double; Precision: Integer): string;
begin
Result := Format('%.' + IntToStr(Precision) + 'n', [F]);
end;
function ClampInt(Number: LongInt; Min, Max: LongInt): LongInt;
begin
Result := Number;
@@ -877,18 +877,18 @@ end;
function Iff(Condition: Boolean; TruePart, FalsePart: Pointer): Pointer;
begin
if Condition then
if Condition then
Result := TruePart
else
Result := FalsePart;
Result := FalsePart;
end;
function Iff(Condition: Boolean; const TruePart, FalsePart: Int64): Int64;
begin
if Condition then
if Condition then
Result := TruePart
else
Result := FalsePart;
Result := FalsePart;
end;
function IffFloat(Condition: Boolean; TruePart, FalsePart: Single): Single;
@@ -982,8 +982,8 @@ end;
function MulDiv(Number, Numerator, Denominator: Word): Word;
{$IF Defined(USE_ASM) and (not Defined(USE_INLINE))}
asm
MUL DX
DIV CX
MUL DX
DIV CX
end;
{$ELSE}
begin
@@ -995,8 +995,8 @@ function IsLittleEndian: Boolean;
var
W: Word;
begin
W := $00FF;
Result := PByte(@W)^ = $FF;
W := $00FF;
Result := PByte(@W)^ = $FF;
end;
function SwapEndianWord(Value: Word): Word;
@@ -1254,12 +1254,12 @@ begin
end;
function GetVolumeLevelCount(Depth, MipMaps: LongInt): LongInt;
var
I: LongInt;
begin
Result := Depth;
for I := 1 to MipMaps - 1 do
Inc(Result, ClampInt(Depth shr I, 1, Depth));
var
I: LongInt;
begin
Result := Depth;
for I := 1 to MipMaps - 1 do
Inc(Result, ClampInt(Depth shr I, 1, Depth));
end;
function BoundsToRect(X, Y, Width, Height: LongInt): TRect;
@@ -1408,27 +1408,27 @@ begin
end;
function RectInRect(const R1, R2: TRect): Boolean;
begin
Result:=
(R1.Left >= R2.Left) and
(R1.Top >= R2.Top) and
(R1.Right <= R2.Right) and
(R1.Bottom <= R2.Bottom);
begin
Result:=
(R1.Left >= R2.Left) and
(R1.Top >= R2.Top) and
(R1.Right <= R2.Right) and
(R1.Bottom <= R2.Bottom);
end;
function RectIntersects(const R1, R2: TRect): Boolean;
begin
Result :=
not (R1.Left > R2.Right) and
not (R1.Top > R2.Bottom) and
not (R1.Right < R2.Left) and
not (R1.Bottom < R2.Top);
end;
Result :=
not (R1.Left > R2.Right) and
not (R1.Top > R2.Bottom) and
not (R1.Right < R2.Left) and
not (R1.Bottom < R2.Top);
end;
function FormatExceptMsg(const Msg: string; const Args: array of const): string;
begin
Result := Format(Msg + SLineBreak + 'Message: ' + GetExceptObject.Message, Args);
end;
end;
procedure DebugMsg(const Msg: string; const Args: array of const);
var