mmsfb_stretchblit_argb_to_argb.cpp

00001 /***************************************************************************
00002  *   Copyright (C) 2005-2007 Stefan Schwarzer, Jens Schneider,             *
00003  *                           Matthias Hardt, Guido Madaus                  *
00004  *                                                                         *
00005  *   Copyright (C) 2007-2008 BerLinux Solutions GbR                        *
00006  *                           Stefan Schwarzer & Guido Madaus               *
00007  *                                                                         *
00008  *   Copyright (C) 2009-2013 BerLinux Solutions GmbH                       *
00009  *                                                                         *
00010  *   Authors:                                                              *
00011  *      Stefan Schwarzer   <stefan.schwarzer@diskohq.org>,                 *
00012  *      Matthias Hardt     <matthias.hardt@diskohq.org>,                   *
00013  *      Jens Schneider     <jens.schneider@diskohq.org>,                   *
00014  *      Guido Madaus       <guido.madaus@diskohq.org>,                     *
00015  *      Patrick Helterhoff <patrick.helterhoff@diskohq.org>,               *
00016  *      René Bählkow       <rene.baehlkow@diskohq.org>                     *
00017  *                                                                         *
00018  *   This library is free software; you can redistribute it and/or         *
00019  *   modify it under the terms of the GNU Lesser General Public            *
00020  *   License version 2.1 as published by the Free Software Foundation.     *
00021  *                                                                         *
00022  *   This library is distributed in the hope that it will be useful,       *
00023  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
00024  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
00025  *   Lesser General Public License for more details.                       *
00026  *                                                                         *
00027  *   You should have received a copy of the GNU Lesser General Public      *
00028  *   License along with this library; if not, write to the                 *
00029  *   Free Software Foundation, Inc.,                                       *
00030  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
00031  **************************************************************************/
00032 
00033 #include "mmsgui/fb/mmsfbconv.h"
00034 
00035 #ifdef __HAVE_PF_ARGB__
00036 
00037 #include "mmstools/mmstools.h"
00038 
00039 void mmsfb_stretchblit_argb_to_argb(MMSFBSurfacePlanes *src_planes, int src_height, int sx, int sy, int sw, int sh,
00040                                     MMSFBSurfacePlanes *dst_planes, int dst_height, int dx, int dy, int dw, int dh,
00041                                     bool antialiasing) {
00042     // first time?
00043     static bool firsttime = true;
00044     if (firsttime) {
00045         printf("DISKO: Using accelerated stretch ARGB to ARGB.\n");
00046         firsttime = false;
00047     }
00048 
00049     // get the first source ptr/pitch
00050     unsigned int *src = (unsigned int *)src_planes->ptr;
00051     int src_pitch = src_planes->pitch;
00052 
00053     // get the first destination ptr/pitch
00054     unsigned int *dst = (unsigned int *)dst_planes->ptr;
00055     int dst_pitch = dst_planes->pitch;
00056 
00057     // prepare...
00058     int src_pitch_pix = src_pitch >> 2;
00059     int dst_pitch_pix = dst_pitch >> 2;
00060 
00061     // check the surface range
00062     if ((sw <= 0)||(sh <= 0))
00063         return;
00064 
00065     // antialiasing horizontal/vertical/both
00066     bool h_antialiasing = false;
00067     bool v_antialiasing = false;
00068     if (antialiasing) {
00069         h_antialiasing = true;
00070         if (sh != dh)
00071             v_antialiasing = true;
00072     }
00073 
00074     // stretch buffer
00075     stretch_uint_buffer(h_antialiasing, v_antialiasing,
00076                         src, src_pitch, src_pitch_pix, src_height, sx, sy, sw, sh,
00077                         dst, dst_pitch, dst_pitch_pix, dst_height, dx, dy, dw, dh);
00078 }
00079 
00080 #endif