/*
- Copyright (C) 2014-2015 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2014-2016 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic 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.
- This program is distributed in the hope that it will be useful,
+ DCP-o-matic 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, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "cross.h"
#include "font.h"
#include "dcpomatic_assert.h"
+#include <fontconfig/fontconfig.h>
#include <cairomm/cairomm.h>
#include <pangomm.h>
#include <boost/foreach.hpp>
static FcConfig* fc_config = 0;
static list<pair<FontFiles, string> > fc_config_fonts;
+string
+marked_up (list<dcp::SubtitleString> subtitles)
+{
+ string out;
+ bool italic = false;
+ bool bold = false;
+ bool underline = false;
+ BOOST_FOREACH (dcp::SubtitleString const & i, subtitles) {
+
+ if (i.italic() && !italic) {
+ out += "<i>";
+ }
+ if (i.bold() && !bold) {
+ out += "<b>";
+ }
+ if (i.underline() && !underline) {
+ out += "<u>";
+ }
+ if (!i.underline() && underline) {
+ out += "</u>";
+ }
+ if (!i.bold() && bold) {
+ out += "</b>";
+ }
+ if (!i.italic() && italic) {
+ out += "</i>";
+ }
+
+ italic = i.italic ();
+ bold = i.bold ();
+ underline = i.underline ();
+
+ out += i.text ();
+ }
+
+ if (underline) {
+ out += "</u>";
+ }
+ if (bold) {
+ out += "</b>";
+ }
+ if (italic) {
+ out += "</i>";
+ }
+
+ return out;
+}
+
/** @param subtitles A list of subtitles that are all on the same line */
static PositionImage
render_line (list<dcp::SubtitleString> subtitles, list<shared_ptr<Font> > fonts, dcp::Size target)
shared_ptr<Image> image (new Image (AV_PIX_FMT_RGBA, dcp::Size (target.width, height), false));
image->make_black ();
+#ifdef DCPOMATIC_HAVE_FORMAT_STRIDE_FOR_WIDTH
Cairo::RefPtr<Cairo::ImageSurface> surface = Cairo::ImageSurface::create (
image->data()[0],
Cairo::FORMAT_ARGB32,
image->size().height,
Cairo::ImageSurface::format_stride_for_width (Cairo::FORMAT_ARGB32, image->size().width)
);
+#else
+ /* Centos 5 does not have Cairo::ImageSurface::format_stride_for_width, so just use width * 4
+ which I hope is safe (if slow)
+ */
+ Cairo::RefPtr<Cairo::ImageSurface> surface = Cairo::ImageSurface::create (
+ image->data()[0],
+ Cairo::FORMAT_ARGB32,
+ image->size().width,
+ image->size().height,
+ image->size().width * 4
+ );
+#endif
Cairo::RefPtr<Cairo::Context> context = Cairo::Context::create (surface);
Pango::FontDescription font (font_name);
font.set_absolute_size (subtitles.front().size_in_pixels (target.height) * PANGO_SCALE);
layout->set_font_description (font);
-
- string marked_up;
- bool italic = false;
- BOOST_FOREACH (dcp::SubtitleString const & i, subtitles) {
- if (i.italic() != italic) {
- if (i.italic()) {
- marked_up += "<i>";
- } else {
- marked_up += "</i>";
- }
- italic = i.italic ();
- }
-
- marked_up += i.text ();
- }
-
- if (italic) {
- marked_up += "</i>";
- }
-
- layout->set_markup (marked_up);
+ layout->set_markup (marked_up (subtitles));
/* Compute fade factor */
/* XXX */
float fade_factor = 1;
- layout->update_from_cairo_context (context);
-
context->scale (xscale, yscale);
+ layout->update_from_cairo_context (context);
if (subtitles.front().effect() == dcp::SHADOW) {
/* Drop-shadow effect */
int layout_width;
int layout_height;
- layout->get_size (layout_width, layout_height);
+ layout->get_pixel_size (layout_width, layout_height);
+ layout_width *= xscale;
+ layout_height *= yscale;
int x = 0;
switch (subtitles.front().h_align ()) {
break;
case dcp::HALIGN_CENTER:
/* h_position is distance between centre of frame and centre of subtitle */
- x = (0.5 + subtitles.front().h_position()) * target.width - layout_width / (PANGO_SCALE * 2);
+ x = (0.5 + subtitles.front().h_position()) * target.width - layout_width / 2;
break;
case dcp::HALIGN_RIGHT:
/* h_position is distance between right of frame and right of subtitle */
- x = (1.0 - subtitles.front().h_position()) * target.width - layout_width / PANGO_SCALE;
+ x = (1.0 - subtitles.front().h_position()) * target.width - layout_width;
break;
}
int y = 0;
switch (subtitles.front().v_align ()) {
case dcp::VALIGN_TOP:
- /* v_position is distance between top of frame and top of subtitle */
- y = subtitles.front().v_position() * target.height;
+ /* SMPTE says that v_position is the distance between top
+ of frame and top of subtitle, but this doesn't always seem to be
+ the case in practice; Gunnar Ásgeirsson's Dolby server appears
+ to put VALIGN_TOP subs with v_position as the distance between top
+ of frame and bottom of subtitle.
+ */
+ y = subtitles.front().v_position() * target.height - layout_height;
break;
case dcp::VALIGN_CENTER:
/* v_position is distance between centre of frame and centre of subtitle */
- y = (0.5 + subtitles.front().v_position()) * target.height - layout_height / (PANGO_SCALE * 2);
+ y = (0.5 + subtitles.front().v_position()) * target.height - layout_height / 2;
break;
case dcp::VALIGN_BOTTOM:
/* v_position is distance between bottom of frame and bottom of subtitle */
- y = (1.0 - subtitles.front().v_position()) * target.height - layout_height / PANGO_SCALE;
+ y = (1.0 - subtitles.front().v_position()) * target.height - layout_height;
break;
}
- return PositionImage (image, Position<int> (x, y));
+ return PositionImage (image, Position<int> (max (0, x), max (0, y)));
}
list<PositionImage>
projects / dcpomatic.git / blobdiff