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Diffstat (limited to 'Game/Code/lib/FreeImage/FreeBitmap.pas')
| -rw-r--r-- | Game/Code/lib/FreeImage/FreeBitmap.pas | 1742 |
1 files changed, 0 insertions, 1742 deletions
diff --git a/Game/Code/lib/FreeImage/FreeBitmap.pas b/Game/Code/lib/FreeImage/FreeBitmap.pas deleted file mode 100644 index 4e5f50a4..00000000 --- a/Game/Code/lib/FreeImage/FreeBitmap.pas +++ /dev/null @@ -1,1742 +0,0 @@ -unit FreeBitmap; - -// ========================================================== -// -// Delphi wrapper for FreeImage 3 -// -// Design and implementation by -// - Anatoliy Pulyaevskiy (xvel84@rambler.ru) -// -// Contributors: -// - Enzo Costantini (enzocostantini@libero.it) -// -// This file is part of FreeImage 3 -// -// COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY -// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES -// THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE -// OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED -// CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT -// THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY -// SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL -// PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER -// THIS DISCLAIMER. -// -// Use at your own risk! -// -// ========================================================== -// -// From begining all code of this file is based on C++ wrapper to -// FreeImage - FreeImagePlus. -// -// ========================================================== - -{$IFDEF FPC} - {$MODE Delphi} - {$H+} // use AnsiString -{$ENDIF} - -interface - -uses - SysUtils, Classes, Windows, FreeImage; - -type - { TFreeObject } - - TFreeObject = class(TObject) - public - function IsValid: Boolean; virtual; - end; - - { TFreeTag } - - TFreeTag = class(TFreeObject) - private - // fields - FTag: PFITAG; - - // getters & setters - function GetCount: Cardinal; - function GetDescription: string; - function GetID: Word; - function GetKey: string; - function GetLength: Cardinal; - function GetTagType: FREE_IMAGE_MDTYPE; - function GetValue: Pointer; - procedure SetCount(const Value: Cardinal); - procedure SetDescription(const Value: string); - procedure SetID(const Value: Word); - procedure SetKey(const Value: string); - procedure SetLength(const Value: Cardinal); - procedure SetTagType(const Value: FREE_IMAGE_MDTYPE); - procedure SetValue(const Value: Pointer); - public - // construction & destruction - constructor Create(ATag: PFITAG = nil); virtual; - destructor Destroy; override; - - // methods - function Clone: TFreeTag; - function IsValid: Boolean; override; - function ToString(Model: FREE_IMAGE_MDMODEL; Make: PChar = nil): string; - - // properties - property Key: string read GetKey write SetKey; - property Description: string read GetDescription write SetDescription; - property ID: Word read GetID write SetID; - property TagType: FREE_IMAGE_MDTYPE read GetTagType write SetTagType; - property Count: Cardinal read GetCount write SetCount; - property Length: Cardinal read GetLength write SetLength; - property Value: Pointer read GetValue write SetValue; - property Tag: PFITAG read FTag; - end; - - { forward declarations } - - TFreeBitmap = class; - TFreeMemoryIO = class; - - { TFreeBitmap } - - TFreeBitmapChangingEvent = procedure(Sender: TFreeBitmap; var OldDib, NewDib: PFIBITMAP; var Handled: Boolean) of object; - - TFreeBitmap = class(TFreeObject) - private - // fields - FDib: PFIBITMAP; - FOnChange: TNotifyEvent; - FOnChanging: TFreeBitmapChangingEvent; - - procedure SetDib(Value: PFIBITMAP); - protected - function DoChanging(var OldDib, NewDib: PFIBITMAP): Boolean; dynamic; - function Replace(NewDib: PFIBITMAP): Boolean; dynamic; - public - constructor Create(ImageType: FREE_IMAGE_TYPE = FIT_BITMAP; Width: Integer = 0; Height: Integer = 0; Bpp: Integer = 0); - destructor Destroy; override; - function SetSize(ImageType: FREE_IMAGE_TYPE; Width, Height, Bpp: Integer; RedMask: Cardinal = 0; GreenMask: Cardinal = 0; BlueMask: Cardinal = 0): Boolean; - procedure Change; dynamic; - procedure Assign(Source: TFreeBitmap); - function CopySubImage(Left, Top, Right, Bottom: Integer; Dest: TFreeBitmap): Boolean; - function PasteSubImage(Src: TFreeBitmap; Left, Top: Integer; Alpha: Integer = 256): Boolean; - procedure Clear; virtual; - function Load(const FileName: string; Flag: Integer = 0): Boolean; - function LoadU(const FileName: WideString; Flag: Integer = 0): Boolean; - function LoadFromHandle(IO: PFreeImageIO; Handle: fi_handle; Flag: Integer = 0): Boolean; - function LoadFromMemory(MemIO: TFreeMemoryIO; Flag: Integer = 0): Boolean; - function LoadFromStream(Stream: TStream; Flag: Integer = 0): Boolean; - // save functions - function CanSave(fif: FREE_IMAGE_FORMAT): Boolean; - function Save(const FileName: string; Flag: Integer = 0): Boolean; - function SaveU(const FileName: WideString; Flag: Integer = 0): Boolean; - function SaveToHandle(fif: FREE_IMAGE_FORMAT; IO: PFreeImageIO; Handle: fi_handle; Flag: Integer = 0): Boolean; - function SaveToMemory(fif: FREE_IMAGE_FORMAT; MemIO: TFreeMemoryIO; Flag: Integer = 0): Boolean; - function SaveToStream(fif: FREE_IMAGE_FORMAT; Stream: TStream; Flag: Integer = 0): Boolean; - // image information - function GetImageType: FREE_IMAGE_TYPE; - function GetWidth: Integer; - function GetHeight: Integer; - function GetScanWidth: Integer; - function IsValid: Boolean; override; - function GetInfo: PBitmapInfo; - function GetInfoHeader: PBitmapInfoHeader; - function GetImageSize: Cardinal; - function GetBitsPerPixel: Integer; - function GetLine: Integer; - function GetHorizontalResolution: Double; - function GetVerticalResolution: Double; - procedure SetHorizontalResolution(Value: Double); - procedure SetVerticalResolution(Value: Double); - // palette operations - function GetPalette: PRGBQUAD; - function GetPaletteSize: Integer; - function GetColorsUsed: Integer; - function GetColorType: FREE_IMAGE_COLOR_TYPE; - function IsGrayScale: Boolean; - // pixels access - function AccessPixels: PByte; - function GetScanLine(ScanLine: Integer): PByte; - function GetPixelIndex(X, Y: Cardinal; var Value: PByte): Boolean; - function GetPixelColor(X, Y: Cardinal; Value: PRGBQUAD): Boolean; - function SetPixelIndex(X, Y: Cardinal; Value: PByte): Boolean; - function SetPixelColor(X, Y: Cardinal; Value: PRGBQUAD): Boolean; - // convertion - function ConvertToStandardType(ScaleLinear: Boolean): Boolean; - function ConvertToType(ImageType: FREE_IMAGE_TYPE; ScaleLinear: Boolean): Boolean; - function Threshold(T: Byte): Boolean; - function ConvertTo4Bits: Boolean; - function ConvertTo8Bits: Boolean; - function ConvertTo16Bits555: Boolean; - function ConvertTo16Bits565: Boolean; - function ConvertTo24Bits: Boolean; - function ConvertTo32Bits: Boolean; - function ConvertToGrayscale: Boolean; - function ColorQuantize(Algorithm: FREE_IMAGE_QUANTIZE): Boolean; - function Dither(Algorithm: FREE_IMAGE_DITHER): Boolean; - function ConvertToRGBF: Boolean; - function ToneMapping(TMO: FREE_IMAGE_TMO; FirstParam, SecondParam: Double): Boolean; - // transparency - function IsTransparent: Boolean; - function GetTransparencyCount: Cardinal; - function GetTransparencyTable: PByte; - procedure SetTransparencyTable(Table: PByte; Count: Integer); - function HasFileBkColor: Boolean; - function GetFileBkColor(var BkColor: PRGBQuad): Boolean; - function SetFileBkColor(BkColor: PRGBQuad): Boolean; - // channel processing routines - function GetChannel(Bitmap: TFreeBitmap; Channel: FREE_IMAGE_COLOR_CHANNEL): Boolean; - function SetChannel(Bitmap: TFreeBitmap; Channel: FREE_IMAGE_COLOR_CHANNEL): Boolean; - function SplitChannels(RedChannel, GreenChannel, BlueChannel: TFreeBitmap): Boolean; - function CombineChannels(Red, Green, Blue: TFreeBitmap): Boolean; - // rotation and flipping - function RotateEx(Angle, XShift, YShift, XOrigin, YOrigin: Double; UseMask: Boolean): Boolean; - function Rotate(Angle: Double): Boolean; - function FlipHorizontal: Boolean; - function FlipVertical: Boolean; - // color manipulation routines - function Invert: Boolean; - function AdjustCurve(Lut: PByte; Channel: FREE_IMAGE_COLOR_CHANNEL): Boolean; - function AdjustGamma(Gamma: Double): Boolean; - function AdjustBrightness(Percentage: Double): Boolean; - function AdjustContrast(Percentage: Double): Boolean; - function GetHistogram(Histo: PDWORD; Channel: FREE_IMAGE_COLOR_CHANNEL = FICC_BLACK): Boolean; - // upsampling / downsampling - procedure MakeThumbnail(const Width, Height: Integer; DestBitmap: TFreeBitmap); - function Rescale(NewWidth, NewHeight: Integer; Filter: FREE_IMAGE_FILTER; Dest: TFreeBitmap = nil): Boolean; - // metadata routines - function FindFirstMetadata(Model: FREE_IMAGE_MDMODEL; var Tag: TFreeTag): PFIMETADATA; - function FindNextMetadata(MDHandle: PFIMETADATA; var Tag: TFreeTag): Boolean; - procedure FindCloseMetadata(MDHandle: PFIMETADATA); - function SetMetadata(Model: FREE_IMAGE_MDMODEL; const Key: string; Tag: TFreeTag): Boolean; - function GetMetadata(Model: FREE_IMAGE_MDMODEL; const Key: string; var Tag: TFreeTag): Boolean; - function GetMetadataCount(Model: FREE_IMAGE_MDMODEL): Cardinal; - - // properties - property Dib: PFIBITMAP read FDib write SetDib; - property OnChange: TNotifyEvent read FOnChange write FOnChange; - property OnChanging: TFreeBitmapChangingEvent read FOnChanging write FOnChanging; - end; - - { TFreeWinBitmap } - - - { TFreeMemoryIO } - - TFreeMemoryIO = class(TFreeObject) - private - FHMem: PFIMEMORY; - public - // construction and destruction - constructor Create(Data: PByte = nil; SizeInBytes: DWORD = 0); - destructor Destroy; override; - - function GetFileType: FREE_IMAGE_FORMAT; - function Read(fif: FREE_IMAGE_FORMAT; Flag: Integer = 0): PFIBITMAP; - function Write(fif: FREE_IMAGE_FORMAT; dib: PFIBITMAP; Flag: Integer = 0): Boolean; - function Tell: Longint; - function Seek(Offset: Longint; Origin: Word): Boolean; - function Acquire(var Data: PByte; var SizeInBytes: DWORD): Boolean; - // overriden methods - function IsValid: Boolean; override; - end; - - { TFreeMultiBitmap } - - TFreeMultiBitmap = class(TFreeObject) - private - FMPage: PFIMULTIBITMAP; - FMemoryCache: Boolean; - public - // constructor and destructor - constructor Create(KeepCacheInMemory: Boolean = False); - destructor Destroy; override; - - // methods - function Open(const FileName: string; CreateNew, ReadOnly: Boolean; Flags: Integer = 0): Boolean; - function Close(Flags: Integer = 0): Boolean; - function GetPageCount: Integer; - procedure AppendPage(Bitmap: TFreeBitmap); - procedure InsertPage(Page: Integer; Bitmap: TFreeBitmap); - procedure DeletePage(Page: Integer); - function MovePage(Target, Source: Integer): Boolean; - procedure LockPage(Page: Integer; DestBitmap: TFreeBitmap); - procedure UnlockPage(Bitmap: TFreeBitmap; Changed: Boolean); - function GetLockedPageNumbers(var Pages: Integer; var Count: Integer): Boolean; - // overriden methods - function IsValid: Boolean; override; - - // properties - // change of this property influences only on the next opening of a file - property MemoryCache: Boolean read FMemoryCache write FMemoryCache; - end; - -implementation - -const - ThumbSize = 150; - -// marker used for clipboard copy / paste - -procedure SetFreeImageMarker(bmih: PBitmapInfoHeader; dib: PFIBITMAP); -begin - // Windows constants goes from 0L to 5L - // Add $FF to avoid conflicts - bmih.biCompression := $FF + FreeImage_GetImageType(dib); -end; - -function GetFreeImageMarker(bmih: PBitmapInfoHeader): FREE_IMAGE_TYPE; -begin - Result := FREE_IMAGE_TYPE(bmih.biCompression - $FF); -end; - -{ TFreePersistent } - -function TFreeObject.IsValid: Boolean; -begin - Result := False -end; - -{ TFreeBitmap } - -function TFreeBitmap.AccessPixels: PByte; -begin - Result := FreeImage_GetBits(FDib) -end; - -function TFreeBitmap.AdjustBrightness(Percentage: Double): Boolean; -begin - if FDib <> nil then - begin - Result := FreeImage_AdjustBrightness(FDib, Percentage); - Change; - end - else - Result := False -end; - -function TFreeBitmap.AdjustContrast(Percentage: Double): Boolean; -begin - if FDib <> nil then - begin - Result := FreeImage_AdjustContrast(FDib, Percentage); - Change; - end - else - Result := False -end; - -function TFreeBitmap.AdjustCurve(Lut: PByte; - Channel: FREE_IMAGE_COLOR_CHANNEL): Boolean; -begin - if FDib <> nil then - begin - Result := FreeImage_AdjustCurve(FDib, Lut, Channel); - Change; - end - else - Result := False -end; - -function TFreeBitmap.AdjustGamma(Gamma: Double): Boolean; -begin - if FDib <> nil then - begin - Result := FreeImage_AdjustGamma(FDib, Gamma); - Change; - end - else - Result := False -end; - -procedure TFreeBitmap.Assign(Source: TFreeBitmap); -var - SourceBmp: TFreeBitmap; - Clone: PFIBITMAP; -begin - if Source = nil then - begin - Clear; - Exit; - end; - - if Source is TFreeBitmap then - begin - SourceBmp := TFreeBitmap(Source); - if SourceBmp <> Self then - begin - if SourceBmp.IsValid then - begin - Clone := FreeImage_Clone(SourceBmp.FDib); - Replace(Clone); - end - else - Clear; - end; - end; -end; - -function TFreeBitmap.CanSave(fif: FREE_IMAGE_FORMAT): Boolean; -var - ImageType: FREE_IMAGE_TYPE; - Bpp: Word; -begin - Result := False; - if not IsValid then Exit; - - if fif <> FIF_UNKNOWN then - begin - // check that the dib can be saved in this format - ImageType := FreeImage_GetImageType(FDib); - if ImageType = FIT_BITMAP then - begin - // standard bitmap type - Bpp := FreeImage_GetBPP(FDib); - Result := FreeImage_FIFSupportsWriting(fif) - and FreeImage_FIFSupportsExportBPP(fif, Bpp); - end - else // special bitmap type - Result := FreeImage_FIFSupportsExportType(fif, ImageType); - end; -end; - -procedure TFreeBitmap.Change; -begin - if Assigned(FOnChange) then FOnChange(Self) -end; - -procedure TFreeBitmap.Clear; -begin - if FDib <> nil then - begin - FreeImage_Unload(FDib); - FDib := nil; - Change; - end; -end; - -function TFreeBitmap.ColorQuantize( - Algorithm: FREE_IMAGE_QUANTIZE): Boolean; -var - dib8: PFIBITMAP; -begin - if FDib <> nil then - begin - dib8 := FreeImage_ColorQuantize(FDib, Algorithm); - Result := Replace(dib8); - end - else - Result := False; -end; - -function TFreeBitmap.CombineChannels(Red, Green, - Blue: TFreeBitmap): Boolean; -var - Width, Height: Integer; -begin - if FDib = nil then - begin - Width := Red.GetWidth; - Height := Red.GetHeight; - FDib := FreeImage_Allocate(Width, Height, 24, FI_RGBA_RED_MASK, - FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK); - end; - - if FDib <> nil then - begin - Result := FreeImage_SetChannel(FDib, Red.FDib, FICC_RED) and - FreeImage_SetChannel(FDib, Green.FDib, FICC_GREEN) and - FreeImage_SetChannel(FDib, Blue.FDib, FICC_BLUE); - - Change - end - else - Result := False; -end; - -function TFreeBitmap.ConvertTo16Bits555: Boolean; -var - dib16_555: PFIBITMAP; -begin - if FDib <> nil then - begin - dib16_555 := FreeImage_ConvertTo16Bits555(FDib); - Result := Replace(dib16_555); - end - else - Result := False -end; - -function TFreeBitmap.ConvertTo16Bits565: Boolean; -var - dib16_565: PFIBITMAP; -begin - if FDib <> nil then - begin - dib16_565 := FreeImage_ConvertTo16Bits565(FDib); - Result := Replace(dib16_565); - end - else - Result := False -end; - -function TFreeBitmap.ConvertTo24Bits: Boolean; -var - dibRGB: PFIBITMAP; -begin - if FDib <> nil then - begin - dibRGB := FreeImage_ConvertTo24Bits(FDib); - Result := Replace(dibRGB); - end - else - Result := False -end; - -function TFreeBitmap.ConvertTo32Bits: Boolean; -var - dib32: PFIBITMAP; -begin - if FDib <> nil then - begin - dib32 := FreeImage_ConvertTo32Bits(FDib); - Result := Replace(dib32); - end - else - Result := False -end; - -function TFreeBitmap.ConvertTo4Bits: Boolean; -var - dib4: PFIBITMAP; -begin - Result := False; - if IsValid then - begin - dib4 := FreeImage_ConvertTo4Bits(FDib); - Result := Replace(dib4); - end; -end; - -function TFreeBitmap.ConvertTo8Bits: Boolean; -var - dib8: PFIBITMAP; -begin - if FDib <> nil then - begin - dib8 := FreeImage_ConvertTo8Bits(FDib); - Result := Replace(dib8); - end - else - Result := False -end; - -function TFreeBitmap.ConvertToGrayscale: Boolean; -var - dib8: PFIBITMAP; -begin - Result := False; - - if IsValid then - begin - dib8 := FreeImage_ConvertToGreyscale(FDib); - Result := Replace(dib8); - end -end; - -function TFreeBitmap.ConvertToRGBF: Boolean; -var - ImageType: FREE_IMAGE_TYPE; - NewDib: PFIBITMAP; -begin - Result := False; - if not IsValid then Exit; - - ImageType := GetImageType; - - if (ImageType = FIT_BITMAP) then - begin - if GetBitsPerPixel < 24 then - if not ConvertTo24Bits then - Exit - end; - NewDib := FreeImage_ConvertToRGBF(FDib); - Result := Replace(NewDib); -end; - -function TFreeBitmap.ConvertToStandardType(ScaleLinear: Boolean): Boolean; -var - dibStandard: PFIBITMAP; -begin - if IsValid then - begin - dibStandard := FreeImage_ConvertToStandardType(FDib, ScaleLinear); - Result := Replace(dibStandard); - end - else - Result := False; -end; - -function TFreeBitmap.ConvertToType(ImageType: FREE_IMAGE_TYPE; - ScaleLinear: Boolean): Boolean; -var - dib: PFIBITMAP; -begin - if FDib <> nil then - begin - dib := FreeImage_ConvertToType(FDib, ImageType, ScaleLinear); - Result := Replace(dib) - end - else - Result := False -end; - -function TFreeBitmap.CopySubImage(Left, Top, Right, Bottom: Integer; - Dest: TFreeBitmap): Boolean; -begin - if FDib <> nil then - begin - Dest.FDib := FreeImage_Copy(FDib, Left, Top, Right, Bottom); - Result := Dest.IsValid; - end else - Result := False; -end; - -constructor TFreeBitmap.Create(ImageType: FREE_IMAGE_TYPE; Width, Height, - Bpp: Integer); -begin - inherited Create; - - FDib := nil; - if (Width > 0) and (Height > 0) and (Bpp > 0) then - SetSize(ImageType, Width, Height, Bpp); -end; - -destructor TFreeBitmap.Destroy; -begin - if FDib <> nil then - FreeImage_Unload(FDib); - inherited; -end; - -function TFreeBitmap.Dither(Algorithm: FREE_IMAGE_DITHER): Boolean; -var - dib: PFIBITMAP; -begin - if FDib <> nil then - begin - dib := FreeImage_Dither(FDib, Algorithm); - Result := Replace(dib); - end - else - Result := False; -end; - -function TFreeBitmap.DoChanging(var OldDib, NewDib: PFIBITMAP): Boolean; -begin - Result := False; - if (OldDib <> NewDib) and Assigned(FOnChanging) then - FOnChanging(Self, OldDib, NewDib, Result); -end; - -procedure TFreeBitmap.FindCloseMetadata(MDHandle: PFIMETADATA); -begin - FreeImage_FindCloseMetadata(MDHandle); -end; - -function TFreeBitmap.FindFirstMetadata(Model: FREE_IMAGE_MDMODEL; - var Tag: TFreeTag): PFIMETADATA; -begin - Result := FreeImage_FindFirstMetadata(Model, FDib, Tag.FTag); -end; - -function TFreeBitmap.FindNextMetadata(MDHandle: PFIMETADATA; - var Tag: TFreeTag): Boolean; -begin - Result := FreeImage_FindNextMetadata(MDHandle, Tag.FTag); -end; - -function TFreeBitmap.FlipHorizontal: Boolean; -begin - if FDib <> nil then - begin - Result := FreeImage_FlipHorizontal(FDib); - Change; - end - else - Result := False -end; - -function TFreeBitmap.FlipVertical: Boolean; -begin - if FDib <> nil then - begin - Result := FreeImage_FlipVertical(FDib); - Change; - end - else - Result := False -end; - -function TFreeBitmap.GetBitsPerPixel: Integer; -begin - Result := FreeImage_GetBPP(FDib) -end; - -function TFreeBitmap.GetChannel(Bitmap: TFreeBitmap; - Channel: FREE_IMAGE_COLOR_CHANNEL): Boolean; -begin - if FDib <> nil then - begin - Bitmap.Dib := FreeImage_GetChannel(FDib, Channel); - Result := Bitmap.IsValid; - end - else - Result := False -end; - -function TFreeBitmap.GetColorsUsed: Integer; -begin - Result := FreeImage_GetColorsUsed(FDib) -end; - -function TFreeBitmap.GetColorType: FREE_IMAGE_COLOR_TYPE; -begin - Result := FreeImage_GetColorType(FDib); -end; - -function TFreeBitmap.GetFileBkColor(var BkColor: PRGBQuad): Boolean; -begin - Result := FreeImage_GetBackgroundColor(FDib, BkColor) -end; - -function TFreeBitmap.GetHeight: Integer; -begin - Result := FreeImage_GetHeight(FDib) -end; - -function TFreeBitmap.GetHistogram(Histo: PDWORD; - Channel: FREE_IMAGE_COLOR_CHANNEL): Boolean; -begin - if FDib <> nil then - Result := FreeImage_GetHistogram(FDib, Histo, Channel) - else - Result := False -end; - -function TFreeBitmap.GetHorizontalResolution: Double; -begin - Result := FreeImage_GetDotsPerMeterX(FDib) / 100 -end; - -function TFreeBitmap.GetImageSize: Cardinal; -begin - Result := FreeImage_GetDIBSize(FDib); -end; - -function TFreeBitmap.GetImageType: FREE_IMAGE_TYPE; -begin - Result := FreeImage_GetImageType(FDib); -end; - -function TFreeBitmap.GetInfo: PBitmapInfo; -begin - Result := FreeImage_GetInfo(FDib^) -end; - -function TFreeBitmap.GetInfoHeader: PBITMAPINFOHEADER; -begin - Result := FreeImage_GetInfoHeader(FDib) -end; - -function TFreeBitmap.GetLine: Integer; -begin - Result := FreeImage_GetLine(FDib) -end; - -function TFreeBitmap.GetMetadata(Model: FREE_IMAGE_MDMODEL; - const Key: string; var Tag: TFreeTag): Boolean; -begin - Result := FreeImage_GetMetaData(Model, FDib, PChar(Key), Tag.FTag); -end; - -function TFreeBitmap.GetMetadataCount(Model: FREE_IMAGE_MDMODEL): Cardinal; -begin - Result := FreeImage_GetMetadataCount(Model, FDib); -end; - -function TFreeBitmap.GetPalette: PRGBQUAD; -begin - Result := FreeImage_GetPalette(FDib) -end; - -function TFreeBitmap.GetPaletteSize: Integer; -begin - Result := FreeImage_GetColorsUsed(FDib) * SizeOf(RGBQUAD) -end; - -function TFreeBitmap.GetPixelColor(X, Y: Cardinal; Value: PRGBQUAD): Boolean; -begin - Result := FreeImage_GetPixelColor(FDib, X, Y, Value) -end; - -function TFreeBitmap.GetPixelIndex(X, Y: Cardinal; - var Value: PByte): Boolean; -begin - Result := FreeImage_GetPixelIndex(FDib, X, Y, Value) -end; - -function TFreeBitmap.GetScanLine(ScanLine: Integer): PByte; -var - H: Integer; -begin - H := FreeImage_GetHeight(FDib); - if ScanLine < H then - Result := FreeImage_GetScanLine(FDib, ScanLine) - else - Result := nil; -end; - -function TFreeBitmap.GetScanWidth: Integer; -begin - Result := FreeImage_GetPitch(FDib) -end; - -function TFreeBitmap.GetTransparencyCount: Cardinal; -begin - Result := FreeImage_GetTransparencyCount(FDib) -end; - -function TFreeBitmap.GetTransparencyTable: PByte; -begin - Result := FreeImage_GetTransparencyTable(FDib) -end; - -function TFreeBitmap.GetVerticalResolution: Double; -begin - Result := FreeImage_GetDotsPerMeterY(Fdib) / 100 -end; - -function TFreeBitmap.GetWidth: Integer; -begin - Result := FreeImage_GetWidth(FDib) -end; - -function TFreeBitmap.HasFileBkColor: Boolean; -begin - Result := FreeImage_HasBackgroundColor(FDib) -end; - -function TFreeBitmap.Invert: Boolean; -begin - if FDib <> nil then - begin - Result := FreeImage_Invert(FDib); - Change; - end - else - Result := False -end; - -function TFreeBitmap.IsGrayScale: Boolean; -begin - Result := (FreeImage_GetBPP(FDib) = 8) - and (FreeImage_GetColorType(FDib) = FIC_PALETTE); -end; - -function TFreeBitmap.IsTransparent: Boolean; -begin - Result := FreeImage_IsTransparent(FDib); -end; - -function TFreeBitmap.IsValid: Boolean; -begin - Result := FDib <> nil -end; - -function TFreeBitmap.Load(const FileName: string; Flag: Integer): Boolean; -var - fif: FREE_IMAGE_FORMAT; -begin - - // check the file signature and get its format - fif := FreeImage_GetFileType(PChar(Filename), 0); - if fif = FIF_UNKNOWN then - // no signature? - // try to guess the file format from the file extention - fif := FreeImage_GetFIFFromFilename(PChar(FileName)); - - // check that the plugin has reading capabilities ... - if (fif <> FIF_UNKNOWN) and FreeImage_FIFSupportsReading(FIF) then - begin - // free the previous dib - if FDib <> nil then - FreeImage_Unload(dib); - - // load the file - FDib := FreeImage_Load(fif, PChar(FileName), Flag); - - Change; - Result := IsValid; - end else - Result := False; -end; - -function TFreeBitmap.LoadFromHandle(IO: PFreeImageIO; Handle: fi_handle; - Flag: Integer): Boolean; -var - fif: FREE_IMAGE_FORMAT; -begin - // check the file signature and get its format - fif := FreeImage_GetFileTypeFromHandle(IO, Handle, 16); - if (fif <> FIF_UNKNOWN) and FreeImage_FIFSupportsReading(fif) then - begin - // free the previous dib - if FDib <> nil then - FreeImage_Unload(FDib); - - // load the file - FDib := FreeImage_LoadFromHandle(fif, IO, Handle, Flag); - - Change; - Result := IsValid; - end else - Result := False; -end; - -function TFreeBitmap.LoadFromMemory(MemIO: TFreeMemoryIO; - Flag: Integer): Boolean; -var - fif: FREE_IMAGE_FORMAT; -begin - - // check the file signature and get its format - fif := MemIO.GetFileType; - if (fif <> FIF_UNKNOWN) and FreeImage_FIFSupportsReading(fif) then - begin - // free the previous dib - if FDib <> nil then - FreeImage_Unload(FDib); - - // load the file - FDib := MemIO.Read(fif, Flag); - - Result := IsValid; - Change; - end else - Result := False; -end; - -function TFreeBitmap.LoadFromStream(Stream: TStream; - Flag: Integer): Boolean; -var - MemIO: TFreeMemoryIO; - Data: PByte; - MemStream: TMemoryStream; - Size: Cardinal; -begin - Size := Stream.Size; - - MemStream := TMemoryStream.Create; - try - MemStream.CopyFrom(Stream, Size); - Data := MemStream.Memory; - - MemIO := TFreeMemoryIO.Create(Data, Size); - try - Result := LoadFromMemory(MemIO); - finally - MemIO.Free; - end; - finally - MemStream.Free; - end; -end; - -function TFreeBitmap.LoadU(const FileName: WideString; - Flag: Integer): Boolean; -var - fif: FREE_IMAGE_FORMAT; -begin - - // check the file signature and get its format - fif := FreeImage_GetFileTypeU(PWideChar(Filename), 0); - if fif = FIF_UNKNOWN then - // no signature? - // try to guess the file format from the file extention - fif := FreeImage_GetFIFFromFilenameU(PWideChar(FileName)); - - // check that the plugin has reading capabilities ... - if (fif <> FIF_UNKNOWN) and FreeImage_FIFSupportsReading(FIF) then - begin - // free the previous dib - if FDib <> nil then - FreeImage_Unload(dib); - - // load the file - FDib := FreeImage_LoadU(fif, PWideChar(FileName), Flag); - - Change; - Result := IsValid; - end else - Result := False; -end; - -procedure TFreeBitmap.MakeThumbnail(const Width, Height: Integer; - DestBitmap: TFreeBitmap); -type - PRGB24 = ^TRGB24; - TRGB24 = packed record - B: Byte; - G: Byte; - R: Byte; - end; -var - x, y, ix, iy: integer; - x1, x2, x3: integer; - - xscale, yscale: single; - iRed, iGrn, iBlu, iRatio: Longword; - p, c1, c2, c3, c4, c5: TRGB24; - pt, pt1: PRGB24; - iSrc, iDst, s1: integer; - i, j, r, g, b, tmpY: integer; - - RowDest, RowSource, RowSourceStart: integer; - w, h: Integer; - dxmin, dymin: integer; - ny1, ny2, ny3: integer; - dx, dy: integer; - lutX, lutY: array of integer; - - SrcBmp, DestBmp: PFIBITMAP; -begin - if not IsValid then Exit; - - if (GetWidth <= ThumbSize) and (GetHeight <= ThumbSize) then - begin - DestBitmap.Assign(Self); - Exit; - end; - - w := Width; - h := Height; - - // prepare bitmaps - if GetBitsPerPixel <> 24 then - SrcBmp := FreeImage_ConvertTo24Bits(FDib) - else - SrcBmp := FDib; - DestBmp := FreeImage_Allocate(w, h, 24); - Assert(DestBmp <> nil, 'TFreeBitmap.MakeThumbnail error'); - -{ iDst := (w * 24 + 31) and not 31; - iDst := iDst div 8; //BytesPerScanline - iSrc := (GetWidth * 24 + 31) and not 31; - iSrc := iSrc div 8; -} - // BytesPerScanline - iDst := FreeImage_GetPitch(DestBmp); - iSrc := FreeImage_GetPitch(SrcBmp); - - xscale := 1 / (w / FreeImage_GetWidth(SrcBmp)); - yscale := 1 / (h / FreeImage_GetHeight(SrcBmp)); - - // X lookup table - SetLength(lutX, w); - x1 := 0; - x2 := trunc(xscale); - for x := 0 to w - 1 do - begin - lutX[x] := x2 - x1; - x1 := x2; - x2 := trunc((x + 2) * xscale); - end; - - // Y lookup table - SetLength(lutY, h); - x1 := 0; - x2 := trunc(yscale); - for x := 0 to h - 1 do - begin - lutY[x] := x2 - x1; - x1 := x2; - x2 := trunc((x + 2) * yscale); - end; - - Dec(w); - Dec(h); - RowDest := integer(FreeImage_GetScanLine(DestBmp, 0)); - RowSourceStart := integer(FreeImage_GetScanLine(SrcBmp, 0)); - RowSource := RowSourceStart; - - for y := 0 to h do - // resampling - begin - dy := lutY[y]; - x1 := 0; - x3 := 0; - for x := 0 to w do // loop through row - begin - dx:= lutX[x]; - iRed:= 0; - iGrn:= 0; - iBlu:= 0; - RowSource := RowSourceStart; - for iy := 1 to dy do - begin - pt := PRGB24(RowSource + x1); - for ix := 1 to dx do - begin - iRed := iRed + pt.R; - iGrn := iGrn + pt.G; - iBlu := iBlu + pt.B; - inc(pt); - end; - RowSource := RowSource + iSrc; - end; - iRatio := 65535 div (dx * dy); - pt1 := PRGB24(RowDest + x3); - pt1.R := (iRed * iRatio) shr 16; - pt1.G := (iGrn * iRatio) shr 16; - pt1.B := (iBlu * iRatio) shr 16; - x1 := x1 + 3 * dx; - inc(x3,3); - end; - RowDest := RowDest + iDst; - RowSourceStart := RowSource; - end; // resampling - - if FreeImage_GetHeight(DestBmp) >= 3 then - // Sharpening... - begin - s1 := integer(FreeImage_GetScanLine(DestBmp, 0)); - iDst := integer(FreeImage_GetScanLine(DestBmp, 1)) - s1; - ny1 := Integer(s1); - ny2 := ny1 + iDst; - ny3 := ny2 + iDst; - for y := 1 to FreeImage_GetHeight(DestBmp) - 2 do - begin - for x := 0 to FreeImage_GetWidth(DestBmp) - 3 do - begin - x1 := x * 3; - x2 := x1 + 3; - x3 := x1 + 6; - - c1 := pRGB24(ny1 + x1)^; - c2 := pRGB24(ny1 + x3)^; - c3 := pRGB24(ny2 + x2)^; - c4 := pRGB24(ny3 + x1)^; - c5 := pRGB24(ny3 + x3)^; - - r := (c1.R + c2.R + (c3.R * -12) + c4.R + c5.R) div -8; - g := (c1.G + c2.G + (c3.G * -12) + c4.G + c5.G) div -8; - b := (c1.B + c2.B + (c3.B * -12) + c4.B + c5.B) div -8; - - if r < 0 then r := 0 else if r > 255 then r := 255; - if g < 0 then g := 0 else if g > 255 then g := 255; - if b < 0 then b := 0 else if b > 255 then b := 255; - - pt1 := pRGB24(ny2 + x2); - pt1.R := r; - pt1.G := g; - pt1.B := b; - end; - inc(ny1, iDst); - inc(ny2, iDst); - inc(ny3, iDst); - end; - end; // sharpening - - if SrcBmp <> FDib then - FreeImage_Unload(SrcBmp); - DestBitmap.Replace(DestBmp); -end; - -function TFreeBitmap.PasteSubImage(Src: TFreeBitmap; Left, Top, - Alpha: Integer): Boolean; -begin - if FDib <> nil then - begin - Result := FreeImage_Paste(FDib, Src.Dib, Left, Top, Alpha); - Change; - end else - Result := False; -end; - -function TFreeBitmap.Replace(NewDib: PFIBITMAP): Boolean; -begin - Result := False; - if NewDib = nil then Exit; - - if not DoChanging(FDib, NewDib) and IsValid then - FreeImage_Unload(FDib); - - FDib := NewDib; - Result := True; - Change; -end; - -function TFreeBitmap.Rescale(NewWidth, NewHeight: Integer; - Filter: FREE_IMAGE_FILTER; Dest: TFreeBitmap): Boolean; -var - Bpp: Integer; - DstDib: PFIBITMAP; -begin - Result := False; - - if FDib <> nil then - begin - Bpp := FreeImage_GetBPP(FDib); - - if Bpp < 8 then - if not ConvertToGrayscale then Exit - else - if Bpp = 16 then - // convert to 24-bit - if not ConvertTo24Bits then Exit; - - // perform upsampling / downsampling - DstDib := FreeImage_Rescale(FDib, NewWidth, NewHeight, Filter); - if Dest = nil then - Result := Replace(DstDib) - else - Result := Dest.Replace(DstDib) - end -end; - -function TFreeBitmap.Rotate(Angle: Double): Boolean; -var - Bpp: Integer; - Rotated: PFIBITMAP; -begin - Result := False; - if IsValid then - begin - Bpp := FreeImage_GetBPP(FDib); - if Bpp in [1, 8, 24, 32] then - begin - Rotated := FreeImage_RotateClassic(FDib, Angle); - Result := Replace(Rotated); - end - end; -end; - -function TFreeBitmap.RotateEx(Angle, XShift, YShift, XOrigin, - YOrigin: Double; UseMask: Boolean): Boolean; -var - Rotated: PFIBITMAP; -begin - Result := False; - if FDib <> nil then - begin - if FreeImage_GetBPP(FDib) >= 8 then - begin - Rotated := FreeImage_RotateEx(FDib, Angle, XShift, YShift, XOrigin, YOrigin, UseMask); - Result := Replace(Rotated); - end - end; -end; - -function TFreeBitmap.Save(const FileName: string; Flag: Integer): Boolean; -var - fif: FREE_IMAGE_FORMAT; -begin - Result := False; - - // try to guess the file format from the file extension - fif := FreeImage_GetFIFFromFilename(PChar(Filename)); - if CanSave(fif) then - Result := FreeImage_Save(fif, FDib, PChar(FileName), Flag); -end; - -function TFreeBitmap.SaveToHandle(fif: FREE_IMAGE_FORMAT; IO: PFreeImageIO; - Handle: fi_handle; Flag: Integer): Boolean; -begin - Result := False; - if CanSave(fif) then - Result := FreeImage_SaveToHandle(fif, FDib, IO, Handle, Flag) -end; - -function TFreeBitmap.SaveToMemory(fif: FREE_IMAGE_FORMAT; - MemIO: TFreeMemoryIO; Flag: Integer): Boolean; -begin - Result := False; - - if CanSave(fif) then - Result := MemIO.Write(fif, FDib, Flag) -end; - -function TFreeBitmap.SaveToStream(fif: FREE_IMAGE_FORMAT; Stream: TStream; - Flag: Integer): Boolean; -var - MemIO: TFreeMemoryIO; - Data: PByte; - Size: Cardinal; -begin - MemIO := TFreeMemoryIO.Create; - try - Result := SaveToMemory(fif, MemIO, Flag); - if Result then - begin - MemIO.Acquire(Data, Size); - Stream.WriteBuffer(Data^, Size); - end; - finally - MemIO.Free; - end; -end; - -function TFreeBitmap.SaveU(const FileName: WideString; - Flag: Integer): Boolean; -var - fif: FREE_IMAGE_FORMAT; -begin - Result := False; - - // try to guess the file format from the file extension - fif := FreeImage_GetFIFFromFilenameU(PWideChar(Filename)); - if CanSave(fif) then - Result := FreeImage_SaveU(fif, FDib, PWideChar(FileName), Flag); -end; - -function TFreeBitmap.SetChannel(Bitmap: TFreeBitmap; - Channel: FREE_IMAGE_COLOR_CHANNEL): Boolean; -begin - if FDib <> nil then - begin - Result := FreeImage_SetChannel(FDib, Bitmap.FDib, Channel); - Change; - end - else - Result := False -end; - -procedure TFreeBitmap.SetDib(Value: PFIBITMAP); -begin - Replace(Value); -end; - -function TFreeBitmap.SetFileBkColor(BkColor: PRGBQuad): Boolean; -begin - Result := FreeImage_SetBackgroundColor(FDib, BkColor); - Change; -end; - -procedure TFreeBitmap.SetHorizontalResolution(Value: Double); -begin - if IsValid then - begin - FreeImage_SetDotsPerMeterX(FDib, Trunc(Value * 100 + 0.5)); - Change; - end; -end; - -function TFreeBitmap.SetMetadata(Model: FREE_IMAGE_MDMODEL; - const Key: string; Tag: TFreeTag): Boolean; -begin - Result := FreeImage_SetMetadata(Model, FDib, PChar(Key), Tag.Tag); -end; - -function TFreeBitmap.SetPixelColor(X, Y: Cardinal; - Value: PRGBQUAD): Boolean; -begin - Result := FreeImage_SetPixelColor(FDib, X, Y, Value); - Change; -end; - -function TFreeBitmap.SetPixelIndex(X, Y: Cardinal; Value: PByte): Boolean; -begin - Result := FreeImage_SetPixelIndex(FDib, X, Y, Value); - Change; -end; - -function TFreeBitmap.SetSize(ImageType: FREE_IMAGE_TYPE; Width, Height, - Bpp: Integer; RedMask, GreenMask, BlueMask: Cardinal): Boolean; -var - Pal: PRGBQuad; - I: Cardinal; -begin - Result := False; - - if FDib <> nil then - FreeImage_Unload(FDib); - - FDib := FreeImage_Allocate(Width, Height, Bpp, RedMask, GreenMask, BlueMask); - if FDib = nil then Exit; - - if ImageType = FIT_BITMAP then - case Bpp of - 1, 4, 8: - begin - Pal := FreeImage_GetPalette(FDib); - for I := 0 to FreeImage_GetColorsUsed(FDib) - 1 do - begin - Pal.rgbBlue := I; - Pal.rgbGreen := I; - Pal.rgbRed := I; - Inc(Pal, SizeOf(RGBQUAD)); - end; - end; - end; - - Result := True; - Change; -end; - -procedure TFreeBitmap.SetTransparencyTable(Table: PByte; Count: Integer); -begin - FreeImage_SetTransparencyTable(FDib, Table, Count); - Change; -end; - -procedure TFreeBitmap.SetVerticalResolution(Value: Double); -begin - if IsValid then - begin - FreeImage_SetDotsPerMeterY(FDib, Trunc(Value * 100 + 0.5)); - Change; - end; -end; - -function TFreeBitmap.SplitChannels(RedChannel, GreenChannel, - BlueChannel: TFreeBitmap): Boolean; -begin - if FDib <> nil then - begin - RedChannel.FDib := FreeImage_GetChannel(FDib, FICC_RED); - GreenChannel.FDib := FreeImage_GetChannel(FDib, FICC_GREEN); - BlueChannel.FDib := FreeImage_GetChannel(FDib, FICC_BLUE); - Result := RedChannel.IsValid and GreenChannel.IsValid and BlueChannel.IsValid; - end - else - Result := False -end; - -function TFreeBitmap.Threshold(T: Byte): Boolean; -var - dib1: PFIBITMAP; -begin - if FDib <> nil then - begin - dib1 := FreeImage_Threshold(FDib, T); - Result := Replace(dib1); - end - else - Result := False -end; - -function TFreeBitmap.ToneMapping(TMO: FREE_IMAGE_TMO; FirstParam, - SecondParam: Double): Boolean; -var - NewDib: PFIBITMAP; -begin - Result := False; - if not IsValid then Exit; - - NewDib := FreeImage_ToneMapping(Fdib, TMO, FirstParam, SecondParam); - Result := Replace(NewDib); -end; - - -{ TFreeMultiBitmap } - -procedure TFreeMultiBitmap.AppendPage(Bitmap: TFreeBitmap); -begin - if IsValid then - FreeImage_AppendPage(FMPage, Bitmap.FDib); -end; - -function TFreeMultiBitmap.Close(Flags: Integer): Boolean; -begin - Result := FreeImage_CloseMultiBitmap(FMPage, Flags); - FMPage := nil; -end; - -constructor TFreeMultiBitmap.Create(KeepCacheInMemory: Boolean); -begin - inherited Create; - FMemoryCache := KeepCacheInMemory; -end; - -procedure TFreeMultiBitmap.DeletePage(Page: Integer); -begin - if IsValid then - FreeImage_DeletePage(FMPage, Page); -end; - -destructor TFreeMultiBitmap.Destroy; -begin - if FMPage <> nil then Close; - inherited; -end; - -function TFreeMultiBitmap.GetLockedPageNumbers(var Pages, - Count: Integer): Boolean; -begin - Result := False; - if not IsValid then Exit; - Result := FreeImage_GetLockedPageNumbers(FMPage, Pages, Count) -end; - -function TFreeMultiBitmap.GetPageCount: Integer; -begin - Result := 0; - if IsValid then - Result := FreeImage_GetPageCount(FMPage) -end; - -procedure TFreeMultiBitmap.InsertPage(Page: Integer; Bitmap: TFreeBitmap); -begin - if IsValid then - FreeImage_InsertPage(FMPage, Page, Bitmap.FDib); -end; - -function TFreeMultiBitmap.IsValid: Boolean; -begin - Result := FMPage <> nil -end; - -procedure TFreeMultiBitmap.LockPage(Page: Integer; DestBitmap: TFreeBitmap); -begin - if not IsValid then Exit; - - if Assigned(DestBitmap) then - begin - DestBitmap.Replace(FreeImage_LockPage(FMPage, Page)); - end; -end; - -function TFreeMultiBitmap.MovePage(Target, Source: Integer): Boolean; -begin - Result := False; - if not IsValid then Exit; - Result := FreeImage_MovePage(FMPage, Target, Source); -end; - -function TFreeMultiBitmap.Open(const FileName: string; CreateNew, - ReadOnly: Boolean; Flags: Integer): Boolean; -var - fif: FREE_IMAGE_FORMAT; -begin - Result := False; - - // try to guess the file format from the filename - fif := FreeImage_GetFIFFromFilename(PChar(FileName)); - - // check for supported file types - if (fif <> FIF_UNKNOWN) and (not fif in [FIF_TIFF, FIF_ICO, FIF_GIF]) then - Exit; - - // open the stream - FMPage := FreeImage_OpenMultiBitmap(fif, PChar(FileName), CreateNew, ReadOnly, FMemoryCache, Flags); - - Result := FMPage <> nil; -end; - -procedure TFreeMultiBitmap.UnlockPage(Bitmap: TFreeBitmap; - Changed: Boolean); -begin - if IsValid then - begin - FreeImage_UnlockPage(FMPage, Bitmap.FDib, Changed); - // clear the image so that it becomes invalid. - // don't use Bitmap.Clear method because it calls FreeImage_Unload - // just clear the pointer - Bitmap.FDib := nil; - Bitmap.Change; - end; -end; - -{ TFreeMemoryIO } - -function TFreeMemoryIO.Acquire(var Data: PByte; - var SizeInBytes: DWORD): Boolean; -begin - Result := FreeImage_AcquireMemory(FHMem, Data, SizeInBytes); -end; - -constructor TFreeMemoryIO.Create(Data: PByte; SizeInBytes: DWORD); -begin - inherited Create; - FHMem := FreeImage_OpenMemory(Data, SizeInBytes); -end; - -destructor TFreeMemoryIO.Destroy; -begin - FreeImage_CloseMemory(FHMem); - inherited; -end; - -function TFreeMemoryIO.GetFileType: FREE_IMAGE_FORMAT; -begin - Result := FreeImage_GetFileTypeFromMemory(FHMem); -end; - -function TFreeMemoryIO.IsValid: Boolean; -begin - Result := FHMem <> nil -end; - -function TFreeMemoryIO.Read(fif: FREE_IMAGE_FORMAT; - Flag: Integer): PFIBITMAP; -begin - Result := FreeImage_LoadFromMemory(fif, FHMem, Flag) -end; - -function TFreeMemoryIO.Seek(Offset: Longint; Origin: Word): Boolean; -begin - Result := FreeImage_SeekMemory(FHMem, Offset, Origin) -end; - -function TFreeMemoryIO.Tell: Longint; -begin - Result := FreeImage_TellMemory(FHMem) -end; - -function TFreeMemoryIO.Write(fif: FREE_IMAGE_FORMAT; dib: PFIBITMAP; - Flag: Integer): Boolean; -begin - Result := FreeImage_SaveToMemory(fif, dib, FHMem, Flag) -end; - -{ TFreeTag } - -function TFreeTag.Clone: TFreeTag; -var - CloneTag: PFITAG; -begin - Result := nil; - if not IsValid then Exit; - - CloneTag := FreeImage_CloneTag(FTag); - Result := TFreeTag.Create(CloneTag); -end; - -constructor TFreeTag.Create(ATag: PFITAG); -begin - inherited Create; - - if ATag <> nil then - FTag := ATag - else - FTag := FreeImage_CreateTag; -end; - -destructor TFreeTag.Destroy; -begin - if IsValid then - FreeImage_DeleteTag(FTag); - - inherited; -end; - -function TFreeTag.GetCount: Cardinal; -begin - Result := 0; - if not IsValid then Exit; - - Result := FreeImage_GetTagCount(FTag); -end; - -function TFreeTag.GetDescription: string; -begin - Result := ''; - if not IsValid then Exit; - - Result := FreeImage_GetTagDescription(FTag); -end; - -function TFreeTag.GetID: Word; -begin - Result := 0; - if not IsValid then Exit; - - Result := FreeImage_GetTagID(FTag); -end; - -function TFreeTag.GetKey: string; -begin - Result := ''; - if not IsValid then Exit; - - Result := FreeImage_GetTagKey(FTag); -end; - -function TFreeTag.GetLength: Cardinal; -begin - Result := 0; - if not IsValid then Exit; - - Result := FreeImage_GetTagLength(FTag); -end; - -function TFreeTag.GetTagType: FREE_IMAGE_MDTYPE; -begin - Result := FIDT_NOTYPE; - if not IsValid then Exit; - - Result := FreeImage_GetTagType(FTag); -end; - -function TFreeTag.GetValue: Pointer; -begin - Result := nil; - if not IsValid then Exit; - - Result := FreeImage_GetTagValue(FTag); -end; - -function TFreeTag.IsValid: Boolean; -begin - Result := FTag <> nil; -end; - -procedure TFreeTag.SetCount(const Value: Cardinal); -begin - if IsValid then - FreeImage_SetTagCount(FTag, Value); -end; - -procedure TFreeTag.SetDescription(const Value: string); -begin - if IsValid then - FreeImage_SetTagDescription(FTag, PChar(Value)); -end; - -procedure TFreeTag.SetID(const Value: Word); -begin - if IsValid then - FreeImage_SetTagID(FTag, Value); -end; - -procedure TFreeTag.SetKey(const Value: string); -begin - if IsValid then - FreeImage_SetTagKey(FTag, PChar(Value)); -end; - -procedure TFreeTag.SetLength(const Value: Cardinal); -begin - if IsValid then - FreeImage_SetTagLength(FTag, Value); -end; - -procedure TFreeTag.SetTagType(const Value: FREE_IMAGE_MDTYPE); -begin - if IsValid then - FreeImage_SetTagType(FTag, Value); -end; - -procedure TFreeTag.SetValue(const Value: Pointer); -begin - if IsValid then - FreeImage_SetTagValue(FTag, Value); -end; - -function TFreeTag.ToString(Model: FREE_IMAGE_MDMODEL; Make: PChar): string; -begin - Result := FreeImage_TagToString(Model, FTag, Make); -end; - -end. |