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/*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
* Copyright (C) 2010 Grigori Goronzy <greg@geekmind.org>
*
* This file is part of libass.
*
* libass 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; either version 2 of the License, or
* (at your option) any later version.
*
* libass 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 libass; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "ass_render.h"
static void ass_reconfigure(ASS_Renderer *priv)
{
ASS_Settings *settings = &priv->settings;
priv->render_id++;
priv->cache.glyph_cache =
ass_glyph_cache_reset(priv->cache.glyph_cache);
priv->cache.bitmap_cache =
ass_bitmap_cache_reset(priv->cache.bitmap_cache);
priv->cache.composite_cache =
ass_composite_cache_reset(priv->cache.composite_cache);
ass_free_images(priv->prev_images_root);
priv->prev_images_root = 0;
priv->width = settings->frame_width;
priv->height = settings->frame_height;
priv->orig_width = settings->frame_width - settings->left_margin -
settings->right_margin;
priv->orig_height = settings->frame_height - settings->top_margin -
settings->bottom_margin;
priv->orig_width_nocrop =
settings->frame_width - FFMAX(settings->left_margin, 0) -
FFMAX(settings->right_margin, 0);
priv->orig_height_nocrop =
settings->frame_height - FFMAX(settings->top_margin, 0) -
FFMAX(settings->bottom_margin, 0);
}
void ass_set_frame_size(ASS_Renderer *priv, int w, int h)
{
if (priv->settings.frame_width != w || priv->settings.frame_height != h) {
priv->settings.frame_width = w;
priv->settings.frame_height = h;
if (priv->settings.aspect == 0.) {
priv->settings.aspect = ((double) w) / h;
priv->settings.storage_aspect = ((double) w) / h;
}
ass_reconfigure(priv);
}
}
void ass_set_margins(ASS_Renderer *priv, int t, int b, int l, int r)
{
if (priv->settings.left_margin != l || priv->settings.right_margin != r ||
priv->settings.top_margin != t || priv->settings.bottom_margin != b) {
priv->settings.left_margin = l;
priv->settings.right_margin = r;
priv->settings.top_margin = t;
priv->settings.bottom_margin = b;
ass_reconfigure(priv);
}
}
void ass_set_use_margins(ASS_Renderer *priv, int use)
{
priv->settings.use_margins = use;
}
void ass_set_aspect_ratio(ASS_Renderer *priv, double dar, double sar)
{
if (priv->settings.aspect != dar || priv->settings.storage_aspect != sar) {
priv->settings.aspect = dar;
priv->settings.storage_aspect = sar;
ass_reconfigure(priv);
}
}
void ass_set_font_scale(ASS_Renderer *priv, double font_scale)
{
if (priv->settings.font_size_coeff != font_scale) {
priv->settings.font_size_coeff = font_scale;
ass_reconfigure(priv);
}
}
void ass_set_hinting(ASS_Renderer *priv, ASS_Hinting ht)
{
if (priv->settings.hinting != ht) {
priv->settings.hinting = ht;
ass_reconfigure(priv);
}
}
void ass_set_line_spacing(ASS_Renderer *priv, double line_spacing)
{
priv->settings.line_spacing = line_spacing;
}
void ass_set_fonts(ASS_Renderer *priv, const char *default_font,
const char *default_family, int fc, const char *config,
int update)
{
free(priv->settings.default_font);
free(priv->settings.default_family);
priv->settings.default_font = default_font ? strdup(default_font) : 0;
priv->settings.default_family =
default_family ? strdup(default_family) : 0;
if (priv->fontconfig_priv)
fontconfig_done(priv->fontconfig_priv);
priv->fontconfig_priv =
fontconfig_init(priv->library, priv->ftlibrary, default_family,
default_font, fc, config, update);
}
int ass_fonts_update(ASS_Renderer *render_priv)
{
return fontconfig_update(render_priv->fontconfig_priv);
}
void ass_set_cache_limits(ASS_Renderer *render_priv, int glyph_max,
int bitmap_max)
{
render_priv->cache.glyph_max = glyph_max ? glyph_max : GLYPH_CACHE_MAX;
render_priv->cache.bitmap_max_size = bitmap_max ? 1048576 * bitmap_max :
BITMAP_CACHE_MAX_SIZE;
}
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