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FLTK - Fast Light Tool Kit - https://github.com/fltk/fltk - cross platform GUI development
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47 lines
1.5 KiB
47 lines
1.5 KiB
// |
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// PNG image header file for the Fast Light Tool Kit (FLTK). |
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// |
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// Copyright 1998-2023 by Bill Spitzak and others. |
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// |
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// This library is free software. Distribution and use rights are outlined in |
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// the file "COPYING" which should have been included with this file. If this |
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// file is missing or damaged, see the license at: |
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// |
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// https://www.fltk.org/COPYING.php |
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// |
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// Please see the following page on how to report bugs and issues: |
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// |
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// https://www.fltk.org/bugs.php |
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// |
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/* \file |
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Fl_PNG_Image class . */ |
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#ifndef Fl_PNG_Image_H |
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#define Fl_PNG_Image_H |
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# include "Fl_Image.H" |
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/** |
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The Fl_PNG_Image class supports loading, caching, |
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and drawing of Portable Network Graphics (PNG) image files. The |
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class loads color-mapped and full-color images and handles color- |
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and alpha-based transparency. |
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*/ |
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class FL_EXPORT Fl_PNG_Image : public Fl_RGB_Image { |
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friend class Fl_ICO_Image; |
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public: |
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Fl_PNG_Image(const char* filename); |
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Fl_PNG_Image (const char *name_png, const unsigned char *buffer, int datasize); |
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private: |
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Fl_PNG_Image(const char *filename, int offset); // used by Fl_ICO_Image |
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void load_png_(const char *name_png, int offset, const unsigned char *buffer_png, int datasize); |
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}; |
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// Support functions to write PNG image files (since 1.4.0) |
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FL_EXPORT int fl_write_png(const char *filename, Fl_RGB_Image *img); |
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FL_EXPORT int fl_write_png(const char *filename, const char *pixels, int w, int h, int d=3, int ld=0); |
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FL_EXPORT int fl_write_png(const char *filename, const unsigned char *pixels, int w, int h, int d=3, int ld=0); |
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#endif
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