netsurf/amiga/thumbnail.c

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/*
* Copyright 2008,2009 Chris Young <chris@unsatisfactorysoftware.co.uk>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* NetSurf is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "desktop/browser.h"
#include <proto/graphics.h>
#include <proto/Picasso96API.h>
#include <intuition/intuition.h>
#include <graphics/blitattr.h>
#include <graphics/composite.h>
#include "amiga/gui.h"
#include "amiga/bitmap.h"
bool thumbnail_create(struct content *content, struct bitmap *bitmap,
const char *url)
{
struct BitScaleArgs bsa;
bitmap->nativebm = p96AllocBitMap(bitmap->width,bitmap->height,32,
BMF_CLEAR | BMF_DISPLAYABLE | BMF_INTERLEAVED,glob.bm,RGBFB_A8R8G8B8);
bitmap->nativebmwidth = bitmap->width;
bitmap->nativebmheight = bitmap->height;
ami_clearclipreg(currp);
content_redraw(content, 0, 0, content->width, content->width,
0, 0, content->width, content->width, 1.0, 0xFFFFFF);
if(GfxBase->lib_Version >= 53) // AutoDoc says v52, but this function isn't in OS4.0, so checking for v53 (OS4.1)
{
CompositeTags(COMPOSITE_Src,glob.bm,bitmap->nativebm,
COMPTAG_ScaleX,COMP_FLOAT_TO_FIX(bitmap->width/content->width),
COMPTAG_ScaleY,COMP_FLOAT_TO_FIX(bitmap->height/content->width),
COMPTAG_Flags,COMPFLAG_IgnoreDestAlpha | COMPFLAG_SrcAlphaOverride,
COMPTAG_DestX,0,
COMPTAG_DestY,0,
COMPTAG_DestWidth,bitmap->width,
COMPTAG_DestHeight,bitmap->height,
COMPTAG_OffsetX,0,
COMPTAG_OffsetY,0,
TAG_DONE);
}
else
{
bsa.bsa_SrcX = 0;
bsa.bsa_SrcY = 0;
bsa.bsa_SrcWidth = content->width;
bsa.bsa_SrcHeight = content->width;
bsa.bsa_DestX = 0;
bsa.bsa_DestY = 0;
// bsa.bsa_DestWidth = width;
// bsa.bsa_DestHeight = height;
bsa.bsa_XSrcFactor = content->width;
bsa.bsa_XDestFactor = bitmap->width;
bsa.bsa_YSrcFactor = content->width;
bsa.bsa_YDestFactor = bitmap->height;
bsa.bsa_SrcBitMap = glob.bm;
bsa.bsa_DestBitMap = bitmap->nativebm;
bsa.bsa_Flags = 0;
BitMapScale(&bsa);
}
if (url) urldb_set_thumbnail(url, bitmap);
return true;
}