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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.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "config.h"
#include "ass_render.h"
static void ass_reconfigure(ASS_Renderer *priv)
{
ASS_Settings *settings = &priv->settings;
priv->render_id++;
ass_cache_empty(priv->cache.outline_cache, 0);
ass_cache_empty(priv->cache.bitmap_cache, 0);
ass_cache_empty(priv->cache.composite_cache, 0);
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;
ass_reconfigure(priv);
}
}
void ass_set_storage_size(ASS_Renderer *priv, int w, int h)
{
if (priv->settings.storage_width != w ||
priv->settings.storage_height != h) {
priv->settings.storage_width = w;
priv->settings.storage_height = h;
ass_reconfigure(priv);
}
}
void ass_set_shaper(ASS_Renderer *priv, ASS_ShapingLevel level)
{
#ifdef CONFIG_HARFBUZZ
// select the complex shaper for illegal values
if (level == ASS_SHAPING_SIMPLE || level == ASS_SHAPING_COMPLEX)
priv->settings.shaper = level;
else
priv->settings.shaper = ASS_SHAPING_COMPLEX;
#endif
}
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)
{
ass_set_pixel_aspect(priv, dar / sar);
}
void ass_set_pixel_aspect(ASS_Renderer *priv, double par)
{
if (priv->settings.par != par) {
priv->settings.par = par;
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_line_position(ASS_Renderer *priv, double line_position)
{
if (priv->settings.line_position != line_position) {
priv->settings.line_position = line_position;
ass_reconfigure(priv);
}
}
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->fontselect)
ass_fontselect_free(priv->fontselect);
priv->fontselect = ass_fontselect_init(priv->library, priv->ftlibrary,
default_family, default_font, config, fc);
}
void ass_set_selective_style_override_enabled(ASS_Renderer *priv, int bits)
{
if (priv->settings.selective_style_overrides != bits) {
priv->settings.selective_style_overrides = bits;
ass_reconfigure(priv);
}
}
void ass_set_selective_style_override(ASS_Renderer *priv, ASS_Style *style)
{
ASS_Style *user_style = &priv->user_override_style;
free(user_style->FontName);
*user_style = *style;
user_style->FontName = strdup(user_style->FontName);
}
int ass_fonts_update(ASS_Renderer *render_priv)
{
// This is just a stub now!
return 1;
}
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;
}
ASS_FontProvider *
ass_create_font_provider(ASS_Renderer *priv, ASS_FontProviderFuncs *funcs,
void *data)
{
return ass_font_provider_new(priv->fontselect, funcs, data);
}
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