100 lines
2.6 KiB
C
100 lines
2.6 KiB
C
/*
|
|
* Copyright 2008 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 <stdbool.h>
|
|
|
|
#include <libnsfb.h>
|
|
#include <libnsfb_plot.h>
|
|
|
|
#include "utils/log.h"
|
|
#include "desktop/thumbnail.h"
|
|
#include "content/urldb.h"
|
|
|
|
#include "framebuffer/gui.h"
|
|
#include "framebuffer/fbtk.h"
|
|
#include "framebuffer/framebuffer.h"
|
|
|
|
bool
|
|
thumbnail_create(struct hlcache_handle *content,
|
|
struct bitmap *bitmap,
|
|
const char *url)
|
|
{
|
|
nsfb_t *tbm = (nsfb_t *)bitmap; /* target bitmap */
|
|
nsfb_t *bm; /* temporary bitmap */
|
|
nsfb_t *current; /* current main fb */
|
|
int width, height; /* target bitmap width height */
|
|
int cwidth, cheight;/* content width /height */
|
|
nsfb_bbox_t loc;
|
|
|
|
struct redraw_context ctx = {
|
|
.interactive = false,
|
|
.background_images = true,
|
|
.plot = &fb_plotters
|
|
};
|
|
|
|
|
|
nsfb_get_geometry(tbm, &width, &height, NULL);
|
|
|
|
LOG(("width %d, height %d", width, height));
|
|
|
|
/* Calculate size of buffer to render the content into */
|
|
/* We get the width from the content width, unless it exceeds 1024,
|
|
* in which case we use 1024. This means we never create excessively
|
|
* large render buffers for huge contents, which would eat memory and
|
|
* cripple performance. */
|
|
cwidth = min(content_get_width(content), 1024);
|
|
/* The height is set in proportion with the width, according to the
|
|
* aspect ratio of the required thumbnail. */
|
|
cheight = ((cwidth * height) + (width / 2)) / width;
|
|
|
|
/* create temporary surface */
|
|
bm = nsfb_new(NSFB_SURFACE_RAM);
|
|
if (bm == NULL) {
|
|
return false;
|
|
}
|
|
|
|
nsfb_set_geometry(bm, cwidth, cheight, NSFB_FMT_XBGR8888);
|
|
|
|
if (nsfb_init(bm) == -1) {
|
|
nsfb_free(bm);
|
|
return false;
|
|
}
|
|
|
|
current = framebuffer_set_surface(bm);
|
|
|
|
/* render the content into temporary surface */
|
|
thumbnail_redraw(content, cwidth, cheight, &ctx);
|
|
|
|
framebuffer_set_surface(current);
|
|
|
|
loc.x0 = 0;
|
|
loc.y0 = 0;
|
|
loc.x1 = width;
|
|
loc.y1 = height;
|
|
|
|
nsfb_plot_copy(bm, NULL, tbm, &loc);
|
|
|
|
nsfb_free(bm);
|
|
|
|
/* register the thumbnail with the URL */
|
|
if (url != NULL)
|
|
urldb_set_thumbnail(url, bitmap);
|
|
|
|
return true;
|
|
}
|