ImagingUtility.pas Functions

Functions

BoundsToRect	Returns rectangle (X, Y, X + Width, Y + Height).
BoundsToRect	Returns rectangle (R.Left, R.Top, R.Left + R.Right, R.Top + R.Bottom).
BuildFileList	This function fills Files string list with names of files found with FindFirst/FindNext functions (See details on Path/Atrr here).
CalcCrc32	Calculates CRC32 for the given data.
Ceil	Returns smallest integer >= Val (for 5.1 returns 6).
ClampFloat	Clamps float value to range
ClampInt	Clamps integer value to range
ClampToByte	Clamps integer value to Byte boundaries.
ClampToWord	Clamps integer value to Word boundaries.
ClipCopyBounds	Clips given source bounds and dest position.
ClipRectBounds	Clips given bounds to Clip rectangle.
ClipStretchBounds	Clips given source bounds and dest bounds.
DebugMsg	Outputs debug message - shows message dialog in Windows and writes to console in Linux/Unix.
FillMemoryByte	Fills given memory with given Byte value.
FillMemoryLongWord	Fills given memory with given LongWord value.
FillMemoryWord	Fills given memory with given Word value.
FloatToStrFmt	Returns string representation of float number (with digit grouping).
Floor	Returns largest integer <= Val (for 5.9 returns 5).
FormatExceptMsg	Formats given message for usage in Exception.Create(..).
FreeAndNil	Frees class instance and sets its reference to nil.
FreeMem	Replacement of standard System.FreeMem procedure which checks if P is nil (this is only needed for Free Pascal, Delphi makes checks in its FreeMem).
FreeMemNil	Frees pointer and sets it to nil.
GetAppDir	Returns directory where application's exceutable is located without path delimiter at the end.
GetAppExe	Returns file name of application's executable.
GetExceptObject	Returns current exception object.
GetFileExt	Returns file extension (without "." dot)
GetNumMipMapLevels	Returns how many mipmap levels can be created for image of given size.
GetTimeMicroseconds	Returns time value with microsecond resolution.
GetTimeMilliseconds	Returns time value with milisecond resolution.
GetVolumeLevelCount	Returns total number of levels of volume texture with given depth and mipmap count (this is not depth * mipmaps!).
Iff	If Condition is True then TruePart is retured, otherwise FalsePart is returned.
Iff	If Condition is True then TruePart is retured, otherwise FalsePart is returned.
Iff	If Condition is True then TruePart is retured, otherwise FalsePart is returned.
Iff	If Condition is True then TruePart is retured, otherwise FalsePart is returned.
Iff	If Condition is True then TruePart is retured, otherwise FalsePart is returned.
Iff	If Condition is True then TruePart is retured, otherwise FalsePart is returned.
IffFloat	If Condition is True then TruePart is retured, otherwise FalsePart is returned.
IffUnsigned	If Condition is True then TruePart is retured, otherwise FalsePart is returned.
IntToStrFmt	Returns string representation of integer number (with digit grouping).
IsLittleEndian	This function returns True if running on little endian machine.
IsPow2	Returns True if Num is power of 2.
Log2	Returns log base 2 of X.
Log2Int	Returns log base 2 of integer X (max 2^30) or -1 if X is not power of 2.
MatchFileNameMask	Returns True if FileName matches given Mask with optional case sensitivity.
Max	Returns greater of two integer numbers.
MaxFloat	Returns greater of two float numbers.
Min	Returns lesser of two integer numbers.
MinFloat	Returns lesser of two float numbers.
MulDiv	Returns result from multiplying Number by Numerator and then dividing by Denominator.
NextPow2	Returns next power of 2 greater than or equal to Num (if Num itself is power of 2 then it retuns Num).
PosEx	Similar to RTL's Pos function but with optional Offset where search will start.
PosNoCase	Same as PosEx but without case sensitivity.
Pow2Int	Raises 2 to the given integer power (in range [0, 30]).
Power	Raises Base to any power.
RectInRect	Returns True if R1 fits into R2.
RectIntersects	Returns True if R1 and R2 intersects.
RectToBounds	Returns rectangle (R.Left, R.Top, R.Right - R.Left, R.Bottom - R.Top).
ScaleRectToRect	Scales one rectangle to fit into another.
StrToken	Returns a sub-string from S which is followed by Sep separator and deletes the sub-string from S including the separator.
StrTokenEnd	Same as StrToken but searches from the end of S string.
StrTokensToList	Fills instance of TStrings with tokens from string S where tokens are separated by one of Seps characters.
SwapEndianLongWord	Swaps byte order of LongWord value.
SwapEndianLongWord	Swaps byte order of multiple LongWord values.
SwapEndianWord	Swaps byte order of multiple Word values.
SwapEndianWord	Swaps byte order of Word value.
SwapMin	Swaps two LongInt values if necessary to ensure that Min <= Max.
SwapValues	Swaps two Byte values
SwapValues	Swaps two LongInt values
SwapValues	Swaps two Single values
SwapValues	Swaps two Word values
Switch	Switches Boolean value.