f120334da3
There was one obvious warning in src/fl_read_image.cxx, but others have to do with incomplete code and platform specific definitions. I'm not entirely happy with these changes. Temporary changes have been marked with 'FIXME' and should be removed later if possible. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11547 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
//
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// "$Id$"
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//
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// X11 image reading routines for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2016 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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// http://www.fltk.org/COPYING.php
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//
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// Please report all bugs and problems on the following page:
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//
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// http://www.fltk.org/str.php
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//
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#include <FL/Fl.H>
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#include <FL/Fl_Screen_Driver.H>
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/**
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Reads an RGB(A) image from the current window or off-screen buffer.
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\param[in] p pixel buffer, or NULL to allocate one
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\param[in] X,Y position of top-left of image to read
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\param[in] W,H width and height of image to read
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\param[in] alpha alpha value for image (0 for none)
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\returns pointer to pixel buffer, or NULL if allocation failed.
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The \p p argument points to a buffer that can hold the image and must
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be at least \p W*H*3 bytes when reading RGB images, or \p W*H*4 bytes
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when reading RGBA images. If NULL, fl_read_image() will create an
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array of the proper size which can be freed using <tt>delete[]</tt>.
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The \p alpha parameter controls whether an alpha channel is created
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and the value that is placed in the alpha channel. If 0, no alpha
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channel is generated.
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*/
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uchar *fl_read_image(uchar *p, int X, int Y, int W, int H, int alpha) {
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return Fl::screen_driver()->read_image(p, X, Y, W, H, alpha);
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}
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//
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// End of "$Id$".
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//
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