139 lines
4.7 KiB
C
139 lines
4.7 KiB
C
/*
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* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
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* Copyright (C) 2010 Grigori Goronzy <greg@geekmind.org>
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*
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* This file is part of libass.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "config.h"
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#include "ass_render.h"
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static void ass_reconfigure(ASS_Renderer *priv)
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{
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ASS_Settings *settings = &priv->settings;
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priv->render_id++;
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priv->cache.glyph_cache =
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ass_glyph_cache_reset(priv->cache.glyph_cache);
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priv->cache.bitmap_cache =
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ass_bitmap_cache_reset(priv->cache.bitmap_cache);
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priv->cache.composite_cache =
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ass_composite_cache_reset(priv->cache.composite_cache);
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ass_free_images(priv->prev_images_root);
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priv->prev_images_root = 0;
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priv->width = settings->frame_width;
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priv->height = settings->frame_height;
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priv->orig_width = settings->frame_width - settings->left_margin -
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settings->right_margin;
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priv->orig_height = settings->frame_height - settings->top_margin -
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settings->bottom_margin;
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priv->orig_width_nocrop =
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settings->frame_width - FFMAX(settings->left_margin, 0) -
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FFMAX(settings->right_margin, 0);
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priv->orig_height_nocrop =
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settings->frame_height - FFMAX(settings->top_margin, 0) -
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FFMAX(settings->bottom_margin, 0);
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}
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void ass_set_frame_size(ASS_Renderer *priv, int w, int h)
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{
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if (priv->settings.frame_width != w || priv->settings.frame_height != h) {
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priv->settings.frame_width = w;
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priv->settings.frame_height = h;
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if (priv->settings.aspect == 0.) {
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priv->settings.aspect = ((double) w) / h;
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priv->settings.storage_aspect = ((double) w) / h;
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}
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ass_reconfigure(priv);
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}
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}
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void ass_set_margins(ASS_Renderer *priv, int t, int b, int l, int r)
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{
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if (priv->settings.left_margin != l || priv->settings.right_margin != r ||
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priv->settings.top_margin != t || priv->settings.bottom_margin != b) {
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priv->settings.left_margin = l;
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priv->settings.right_margin = r;
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priv->settings.top_margin = t;
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priv->settings.bottom_margin = b;
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ass_reconfigure(priv);
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}
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}
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void ass_set_use_margins(ASS_Renderer *priv, int use)
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{
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priv->settings.use_margins = use;
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}
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void ass_set_aspect_ratio(ASS_Renderer *priv, double dar, double sar)
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{
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if (priv->settings.aspect != dar || priv->settings.storage_aspect != sar) {
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priv->settings.aspect = dar;
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priv->settings.storage_aspect = sar;
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ass_reconfigure(priv);
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}
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}
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void ass_set_font_scale(ASS_Renderer *priv, double font_scale)
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{
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if (priv->settings.font_size_coeff != font_scale) {
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priv->settings.font_size_coeff = font_scale;
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ass_reconfigure(priv);
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}
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}
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void ass_set_hinting(ASS_Renderer *priv, ASS_Hinting ht)
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{
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if (priv->settings.hinting != ht) {
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priv->settings.hinting = ht;
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ass_reconfigure(priv);
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}
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}
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void ass_set_line_spacing(ASS_Renderer *priv, double line_spacing)
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{
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priv->settings.line_spacing = line_spacing;
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}
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void ass_set_fonts(ASS_Renderer *priv, const char *default_font,
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const char *default_family, int fc, const char *config,
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int update)
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{
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free(priv->settings.default_font);
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free(priv->settings.default_family);
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priv->settings.default_font = default_font ? strdup(default_font) : 0;
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priv->settings.default_family =
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default_family ? strdup(default_family) : 0;
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if (priv->fontconfig_priv)
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fontconfig_done(priv->fontconfig_priv);
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priv->fontconfig_priv =
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fontconfig_init(priv->library, priv->ftlibrary, default_family,
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default_font, fc, config, update);
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}
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int ass_fonts_update(ASS_Renderer *render_priv)
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{
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return fontconfig_update(render_priv->fontconfig_priv);
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}
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void ass_set_cache_limits(ASS_Renderer *render_priv, int glyph_max,
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int bitmap_max)
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{
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render_priv->cache.glyph_max = glyph_max ? glyph_max : GLYPH_CACHE_MAX;
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render_priv->cache.bitmap_max_size = bitmap_max ? 1048576 * bitmap_max :
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BITMAP_CACHE_MAX_SIZE;
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}
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