65 lines
2.5 KiB
Objective-C
65 lines
2.5 KiB
Objective-C
/////////////////////////////////////////////////////////////////////////////
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// Name: quantize.h
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// Purpose: interface of wxQuantize
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// Author: wxWidgets team
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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/**
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@class wxQuantize
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Performs quantization, or colour reduction, on a wxImage.
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Functions in this class are static and so a wxQuantize object need not be
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created.
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@library{wxcore}
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@category{misc}
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*/
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class wxQuantize : public wxObject
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{
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public:
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/**
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Constructor. You do not need to construct a wxQuantize object since its
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functions are static.
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*/
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wxQuantize();
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/**
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Converts input bitmap(s) into 8bit representation with custom palette.
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@a in_rows and @a out_rows are arrays [0..h-1] of pointer to rows
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(@a in_rows contains @a w * 3 bytes per row, @a out_rows @a w bytes per row).
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Fills @a out_rows with indexes into palette (which is also stored into @a palette
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variable).
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*/
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static void DoQuantize(unsigned int w, unsigned int h,
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unsigned char** in_rows, unsigned char** out_rows,
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unsigned char* palette, int desiredNoColours);
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/**
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Reduce the colours in the source image and put the result into the destination image.
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Both images may be the same, to overwrite the source image.
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Specify an optional palette pointer to receive the resulting palette.
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This palette may be passed to ConvertImageToBitmap, for example.
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*/
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static bool Quantize(const wxImage& src, wxImage& dest,
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wxPalette** pPalette, int desiredNoColours = 236,
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unsigned char** eightBitData = 0,
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int flags = wxQUANTIZE_INCLUDE_WINDOWS_COLOURS|
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wxQUANTIZE_FILL_DESTINATION_IMAGE|
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wxQUANTIZE_RETURN_8BIT_DATA);
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/**
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This version sets a palette in the destination image so you don't
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have to manage it yourself.
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*/
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static bool Quantize(const wxImage& src, wxImage& dest,
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int desiredNoColours = 236,
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unsigned char** eightBitData = 0,
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int flags = wxQUANTIZE_INCLUDE_WINDOWS_COLOURS|
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wxQUANTIZE_FILL_DESTINATION_IMAGE|
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wxQUANTIZE_RETURN_8BIT_DATA);
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};
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