2000-10-09 10:31:03 -04:00
|
|
|
\section{\class{wxQuantize}}\label{wxquantize}
|
|
|
|
|
|
|
|
Performs quantization, or colour reduction, on a wxImage.
|
|
|
|
|
|
|
|
Functions in this class are static and so a wxQuantize object need not be created.
|
|
|
|
|
|
|
|
\wxheading{Derived from}
|
|
|
|
|
|
|
|
\helpref{wxObject}{wxobject}
|
|
|
|
|
|
|
|
\wxheading{Include files}
|
|
|
|
|
|
|
|
<wx/quantize.h>
|
|
|
|
|
2007-07-28 08:21:03 -04:00
|
|
|
\wxheading{Library}
|
|
|
|
|
|
|
|
\helpref{wxCore}{librarieslist}
|
|
|
|
|
2000-10-09 10:31:03 -04:00
|
|
|
\latexignore{\rtfignore{\wxheading{Members}}}
|
|
|
|
|
|
|
|
\membersection{wxQuantize::wxQuantize}\label{wxquantizewxquantize}
|
|
|
|
|
|
|
|
\func{}{wxQuantize}{\void}
|
|
|
|
|
|
|
|
Constructor. You do not need to construct a wxQuantize object since its functions are static.
|
|
|
|
|
|
|
|
\membersection{wxQuantize::Quantize}\label{wxquantizequantize}
|
|
|
|
|
|
|
|
\func{bool}{Quantize}{\param{const wxImage\& }{src}, \param{wxImage\& }{dest}, \param{wxPalette** }{pPalette}, \param{int }{desiredNoColours = 236}, \param{unsigned char** }{eightBitData = 0}, \param{int }{flags = wxQUANTIZE\_INCLUDE\_WINDOWS\_COLOURS|wxQUANTIZE\_FILL\_DESTINATION\_IMAGE|wxQUANTIZE\_RETURN\_8BIT\_DATA}}
|
|
|
|
|
|
|
|
Reduce the colours in the source image and put the result into the
|
|
|
|
destination image. Both images may be the same, to overwrite the source image.
|
|
|
|
Specify an optional palette pointer to receive the resulting palette.
|
|
|
|
This palette may be passed to ConvertImageToBitmap, for example.
|
|
|
|
|
|
|
|
If you pass a palette pointer, you must free the palette yourself.
|
|
|
|
|
|
|
|
\func{bool}{Quantize}{\param{const wxImage\& }{src}, \param{wxImage\& }{dest}, \param{int }{desiredNoColours = 236}, \param{unsigned char** }{eightBitData = 0}, \param{int }{flags = wxQUANTIZE\_INCLUDE\_WINDOWS\_COLOURS|wxQUANTIZE\_FILL\_DESTINATION\_IMAGE|wxQUANTIZE\_RETURN\_8BIT\_DATA}}
|
|
|
|
|
|
|
|
This version sets a palette in the destination image so you don't
|
|
|
|
have to manage it yourself.
|
|
|
|
|
|
|
|
\membersection{wxQuantize::DoQuantize}\label{wxquantizedoquantize}
|
|
|
|
|
|
|
|
\func{void}{DoQuantize}{\param{unsigned }{w}, \param{unsigned }{h}, \param{unsigned char** }{in\_rows}, \param{unsigned char** }{out\_rows}, \param{unsigned char* }{palette}, \param{int }{desiredNoColours}}
|
|
|
|
|
|
|
|
Converts input bitmap(s) into 8bit representation with custom palette.
|
|
|
|
|
|
|
|
in\_rows and out\_rows are arrays [0..h-1] of pointer to rows
|
|
|
|
(in\_rows contains w * 3 bytes per row, out\_rows w bytes per row).
|
|
|
|
|
|
|
|
Fills out\_rows with indexes into palette (which is also stored into palette variable).
|
|
|
|
|