source/libs/poppler/poppler-src/poppler/CairoRescaleBox.h

   1 /*
   2  * Copyright © 2009 Mozilla Corporation
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software and its
   5  * documentation for any purpose is hereby granted without fee, provided that
   6  * the above copyright notice appear in all copies and that both that
   7  * copyright notice and this permission notice appear in supporting
   8  * documentation, and that the name of Mozilla Corporation not be used in
   9  * advertising or publicity pertaining to distribution of the software without
  10  * specific, written prior permission.  Mozilla Corporation makes no
  11  * representations about the suitability of this software for any purpose.  It
  12  * is provided "as is" without express or implied warranty.
  13  *
  14  * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  15  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT
  16  * SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  17  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  18  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  19  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  20  * OF THIS SOFTWARE.
  21  *
  22  * Author: Jeff Muizelaar, Mozilla Corp.
  23  */
  24
  25 //========================================================================
  26 //
  27 // Modified under the Poppler project - http://poppler.freedesktop.org
  28 //
  29 // All changes made under the Poppler project to this file are licensed
  30 // under GPL version 2 or later
  31 //
  32 // Copyright (C) 2012 Adrian Johnson <ajohnson@redneon.com>
  33 //
  34 // To see a description of the changes please see the Changelog file that
  35 // came with your tarball or type make ChangeLog if you are building from git
  36 //
  37 //========================================================================
  38
  39 #ifndef CAIRO_RESCALE_BOX_H
  40 #define CAIRO_RESCALE_BOX_H
  41
  42 #include "goo/gtypes.h"
  43 #include <cairo.h>
  44
  45 class CairoRescaleBox {
  46 public:
  47
  48   CairoRescaleBox() {};
  49   virtual ~CairoRescaleBox() {};
  50
  51   virtual GBool downScaleImage(unsigned orig_width, unsigned orig_height,
  52                                signed scaled_width, signed scaled_height,
  53                                unsigned short int start_column, unsigned short int start_row,
  54                                unsigned short int width, unsigned short int height,
  55                                cairo_surface_t *dest_surface);
  56
  57   virtual void getRow(int row_num, uint32_t *row_data) = 0;
  58
  59 };
  60
  61 #endif /* CAIRO_RESCALE_BOX_H */