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vlc-gpu
Commit 325b6265 authored by Laurent Aimar's avatar Laurent Aimar
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Removed use of run-len 'encoding' for karaoke/style informations in freetype.

parent 00b78e93
Show whitespace changes
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Showing with 116 additions and 323 deletions
modules/misc/text_renderer/freetype.c
View file @ 325b6265
......@@ -42,7 +42,6 @@
#include <vlc_dialog.h> /* FcCache dialog */
#include <vlc_filter.h> /* filter_sys_t */
#include <vlc_text_style.h> /* text_style_t*/
#include <vlc_memory.h> /* realloc_or_free */
/* Default fonts */
#ifdef __APPLE__
......@@ -1382,76 +1381,6 @@ static int HandleFontAttributes( xml_reader_t *p_xml_reader,
return rv;
}
static void SetKaraokeLen( uint32_t i_runs, uint32_t *pi_run_lengths,
uint32_t i_k_runs, uint32_t *pi_k_run_lengths )
{
/* Karaoke tags _PRECEDE_ the text they specify a duration
* for, therefore we are working out the length for the
* previous tag, and first time through we have nothing
*/
if( pi_k_run_lengths )
{
int i_chars = 0;
uint32_t i;
/* Work out how many characters are presently in the string
*/
for( i = 0; i < i_runs; i++ )
i_chars += pi_run_lengths[ i ];
/* Subtract away those we've already allocated to other
* karaoke tags
*/
for( i = 0; i < i_k_runs; i++ )
i_chars -= pi_k_run_lengths[ i ];
pi_k_run_lengths[ i_k_runs - 1 ] = i_chars;
}
}
static void SetupKaraoke( xml_reader_t *p_xml_reader, uint32_t *pi_k_runs,
uint32_t **ppi_k_run_lengths,
uint32_t **ppi_k_durations )
{
const char *name, *value;
while( (name = xml_ReaderNextAttr( p_xml_reader, &value )) != NULL )
{
if( !strcasecmp( "t", name ) )
{
if( ppi_k_durations && ppi_k_run_lengths )
{
(*pi_k_runs)++;
if( *ppi_k_durations )
{
*ppi_k_durations = realloc_or_free( *ppi_k_durations,
*pi_k_runs * sizeof(**ppi_k_durations) );
}
else if( *pi_k_runs == 1 )
{
*ppi_k_durations = malloc( *pi_k_runs * sizeof(**ppi_k_durations) );
}
if( *ppi_k_run_lengths )
{
*ppi_k_run_lengths = realloc_or_free( *ppi_k_run_lengths,
*pi_k_runs * sizeof(**ppi_k_run_lengths) );
}
else if( *pi_k_runs == 1 )
{
*ppi_k_run_lengths = malloc( *pi_k_runs * sizeof(**ppi_k_run_lengths) );
}
if( *ppi_k_durations )
(*ppi_k_durations)[ *pi_k_runs - 1 ] = atoi( value );
if( *ppi_k_run_lengths )
(*ppi_k_run_lengths)[ *pi_k_runs - 1 ] = 0;
}
}
}
}
/* Turn any multiple-whitespaces into single spaces */
static void HandleWhiteSpace( char *psz_node )
{
......@@ -1692,12 +1621,12 @@ static int RenderTag( filter_t *p_filter, FT_Face p_face,
static unsigned SetupText( filter_t *p_filter,
uint32_t *psz_text_out,
uint32_t *pi_runs,
uint32_t **ppi_run_lengths,
text_style_t ***ppp_styles,
text_style_t **pp_styles,
uint32_t *pi_k_dates,
const char *psz_text_in,
text_style_t *p_style )
text_style_t *p_style,
uint32_t i_k_date )
{
size_t i_string_length;
......@@ -1719,52 +1648,20 @@ static unsigned SetupText( filter_t *p_filter,
i_string_length = 0;
}
if( i_string_length > 0 && ppp_styles && ppi_run_lengths )
{
(*pi_runs)++;
/* XXX this logic looks somewhat broken */
if( *ppp_styles )
{
*ppp_styles = realloc_or_free( *ppp_styles,
*pi_runs * sizeof(**ppp_styles) );
}
else if( *pi_runs == 1 )
{
*ppp_styles = malloc( *pi_runs * sizeof(**ppp_styles) );
}
/* We have just malloc'ed this memory successfully -
* *pi_runs HAS to be within the memory area of *ppp_styles */
if( *ppp_styles )
if( i_string_length > 0 )
{
(*ppp_styles)[ *pi_runs - 1 ] = p_style;
p_style = NULL;
for( unsigned i = 0; i < i_string_length; i++ )
pp_styles[i] = p_style;
}
/* XXX more iffy logic */
if( *ppi_run_lengths )
{
*ppi_run_lengths = realloc_or_free( *ppi_run_lengths,
*pi_runs * sizeof(**ppi_run_lengths) );
}
else if( *pi_runs == 1 )
else
{
*ppi_run_lengths = malloc( *pi_runs * sizeof(**ppi_run_lengths) );
text_style_Delete( p_style );
}
/* same remarks here */
if( *ppi_run_lengths )
if( i_string_length > 0 && pi_k_dates )
{
(*ppi_run_lengths)[ *pi_runs - 1 ] = i_string_length;
}
for( unsigned i = 0; i < i_string_length; i++ )
pi_k_dates[i] = i_k_date;
}
/* If we couldn't use the p_style argument due to memory allocation
* problems above, release it here.
*/
text_style_Delete( p_style );
return i_string_length;
}
......@@ -1801,24 +1698,18 @@ static int CheckForEmbeddedFont( filter_sys_t *p_sys, FT_Face *pp_face, text_sty
}
static int ProcessNodes( filter_t *p_filter,
xml_reader_t *p_xml_reader,
text_style_t *p_font_style,
uint32_t *psz_text,
text_style_t **pp_styles,
uint32_t *pi_k_dates,
int *pi_len,
uint32_t *pi_runs,
uint32_t **ppi_run_lengths,
text_style_t * **ppp_styles,
bool b_karaoke,
uint32_t *pi_k_runs,
uint32_t **ppi_k_run_lengths,
uint32_t **ppi_k_durations )
xml_reader_t *p_xml_reader,
text_style_t *p_font_style )
{
int rv = VLC_SUCCESS;
filter_sys_t *p_sys = p_filter->p_sys;
int i_text_length = 0;
font_stack_t *p_fonts = NULL;
uint32_t i_k_date = 0;
int i_style_flags = 0;
......@@ -1874,7 +1765,7 @@ static int ProcessNodes( filter_t *p_filter,
case XML_READER_STARTELEM:
if( !strcasecmp( "font", node ) )
rv = HandleFontAttributes( p_xml_reader, &p_fonts );
HandleFontAttributes( p_xml_reader, &p_fonts );
else if( !strcasecmp( "b", node ) )
i_style_flags |= STYLE_BOLD;
else if( !strcasecmp( "i", node ) )
......@@ -1887,22 +1778,22 @@ static int ProcessNodes( filter_t *p_filter,
{
i_text_length += SetupText( p_filter,
&psz_text[i_text_length],
pi_runs, ppi_run_lengths, ppp_styles,
&pp_styles[i_text_length],
pi_k_dates ? &pi_k_dates[i_text_length] : NULL,
"\n",
GetStyleFromFontStack( p_sys,
&p_fonts,
i_style_flags ) );
i_style_flags ),
i_k_date );
}
else if( !strcasecmp( "k", node ) )
{
/* Only valid in karaoke */
if( b_karaoke )
/* Karaoke tags */
const char *name, *value;
while( (name = xml_ReaderNextAttr( p_xml_reader, &value )) != NULL )
{
if( *pi_k_runs > 0 )
SetKaraokeLen( *pi_runs, *ppi_run_lengths,
*pi_k_runs, *ppi_k_run_lengths );
SetupKaraoke( p_xml_reader, pi_k_runs,
ppi_k_run_lengths, ppi_k_durations );
if( !strcasecmp( "t", name ) && value )
i_k_date += atoi( value );
}
}
break;
......@@ -1918,32 +1809,24 @@ static int ProcessNodes( filter_t *p_filter,
i_text_length += SetupText( p_filter,
&psz_text[i_text_length],
pi_runs, ppi_run_lengths, ppp_styles,
&pp_styles[i_text_length],
pi_k_dates ? &pi_k_dates[i_text_length] : NULL,
psz_node,
GetStyleFromFontStack( p_sys,
&p_fonts,
i_style_flags ) );
i_style_flags ),
i_k_date );
free( psz_node );
break;
}
}
if( rv != VLC_SUCCESS )
{
i_text_length = 0;
break;
}
}
if( b_karaoke )
{
SetKaraokeLen( *pi_runs, *ppi_run_lengths,
*pi_k_runs, *ppi_k_run_lengths );
}
*pi_len = i_text_length;
while( VLC_SUCCESS == PopFont( &p_fonts ) );
return rv;
return VLC_SUCCESS;
}
static void FreeLine( line_desc_t *p_line )
......@@ -2005,38 +1888,22 @@ static line_desc_t *NewLine( int i_count )
static int ProcessLines( filter_t *p_filter,
uint32_t *psz_text,
int i_len,
uint32_t i_runs,
uint32_t *pi_run_lengths,
text_style_t **pp_styles,
line_desc_t **pp_lines,
FT_Vector *p_result,
bool b_karaoke,
uint32_t i_k_runs,
uint32_t *pi_k_run_lengths,
uint32_t *pi_k_durations )
uint32_t *psz_text,
text_style_t **pp_styles,
uint32_t *pi_k_dates,
int i_len )
{
filter_sys_t *p_sys = p_filter->p_sys;
text_style_t **pp_char_styles;
uint32_t *p_fribidi_string = NULL;
text_style_t **pp_fribidi_styles = NULL;
int *p_new_positions = NULL;
int8_t *p_levels = NULL;
uint8_t *pi_karaoke_bar = NULL;
uint32_t i, j, k;
int i_prev;
/* Assign each character in the text string its style explicitly, so that
* after the characters have been shuffled around by Fribidi, we can re-apply
* the styles, and to simplify the calculation of runs within a line.
*/
pp_char_styles = malloc( i_len * sizeof(*pp_char_styles));
if( !pp_char_styles )
return VLC_ENOMEM;
if( b_karaoke )
if( pi_k_dates )
{
pi_karaoke_bar = malloc( i_len * sizeof(*pi_karaoke_bar));
/* If we can't allocate sufficient memory for karaoke, continue anyway -
......@@ -2045,26 +1912,20 @@ static int ProcessLines( filter_t *p_filter,
*/
}
i = 0;
for( j = 0; j < i_runs; j++ )
for( k = 0; k < pi_run_lengths[ j ]; k++ )
pp_char_styles[ i++ ] = pp_styles[ j ];
#if defined(HAVE_FRIBIDI)
{
text_style_t **pp_char_styles_new;
int *p_old_positions;
uint32_t *p_fribidi_string;
int8_t *p_levels;
int start_pos, pos = 0;
pp_char_styles_new = malloc( i_len * sizeof(*pp_char_styles_new));
pp_fribidi_styles = calloc( i_len, sizeof(*pp_fribidi_styles) );
p_fribidi_string = malloc( (i_len + 1) * sizeof(*p_fribidi_string) );
p_old_positions = malloc( (i_len + 1) * sizeof(*p_old_positions) );
p_new_positions = malloc( (i_len + 1) * sizeof(*p_new_positions) );
p_levels = malloc( (i_len + 1) * sizeof(*p_levels) );
if( ! pp_char_styles_new ||
if( ! pp_fribidi_styles ||
! p_fribidi_string ||
! p_old_positions ||
! p_new_positions ||
......@@ -2074,10 +1935,8 @@ static int ProcessLines( filter_t *p_filter,
free( p_old_positions );
free( p_new_positions );
free( p_fribidi_string );
free( pp_char_styles_new );
free( pp_fribidi_styles );
free( pi_karaoke_bar );
free( pp_char_styles );
return VLC_ENOMEM;
}
......@@ -2088,7 +1947,7 @@ static int ProcessLines( filter_t *p_filter,
if (psz_text[pos] != '\n')
break;
p_fribidi_string[pos] = psz_text[pos];
pp_char_styles_new[pos] = pp_char_styles[pos];
pp_fribidi_styles[pos] = pp_styles[pos];
p_new_positions[pos] = pos;
p_levels[pos] = 0;
++pos;
......@@ -2112,82 +1971,34 @@ static int ProcessLines( filter_t *p_filter,
p_new_positions + start_pos,
p_old_positions,
p_levels + start_pos );
for( j = (uint32_t) start_pos; j < (uint32_t) pos; j++ )
for( int j = start_pos; j < pos; j++ )
{
pp_char_styles_new[ j ] = pp_char_styles[ start_pos +
p_old_positions[ j - start_pos ] ];
pp_fribidi_styles[ j ] = pp_styles[ start_pos + p_old_positions[j - start_pos] ];
p_new_positions[ j ] += start_pos;
}
}
}
p_fribidi_string[ i_len ] = 0;
free( p_old_positions );
free( pp_char_styles );
pp_char_styles = pp_char_styles_new;
free( p_levels );
pp_styles = pp_fribidi_styles;
psz_text = p_fribidi_string;
p_fribidi_string[ i_len ] = 0;
}
#endif
/* Work out the karaoke */
if( pi_karaoke_bar )
{
int64_t i_last_duration = 0;
int64_t i_duration = 0;
int64_t i_start_pos = 0;
int64_t i_elapsed = var_GetTime( p_filter, "spu-elapsed" ) / 1000;
for( k = 0; k< i_k_runs; k++ )
{
double fraction = 0.0;
i_duration += pi_k_durations[ k ];
if( i_duration < i_elapsed )
{
/* Completely finished this run-length -
* let it render normally */
fraction = 1.0;
}
else if( i_elapsed < i_last_duration )
{
/* Haven't got up to this segment yet -
* render it completely in karaoke BG mode */
fraction = 0.0;
}
else
{
/* Partway through this run */
fraction = (double)(i_elapsed - i_last_duration) /
(double)pi_k_durations[ k ];
}
for( i = 0; i < pi_k_run_lengths[ k ]; i++ )
for( int i = 0; i < i_len; i++ )
{
double shade = pi_k_run_lengths[ k ] * fraction;
if( p_new_positions )
j = p_new_positions[ i_start_pos + i ];
else
j = i_start_pos + i;
if( i < (uint32_t)shade )
pi_karaoke_bar[ j ] = 0xff;
else if( (double)i > shade )
pi_karaoke_bar[ j ] = 0x00;
unsigned i_bar = p_new_positions ? p_new_positions[i] : i;
if( pi_k_dates[i] < i_elapsed )
pi_karaoke_bar[i_bar] = 0x7f;
else
{
shade -= (int)shade;
pi_karaoke_bar[ j ] = ((int)(shade * 128.0) & 0x7f) |
((p_levels ? (p_levels[ j ] % 2) : 0 ) << 7);
}
pi_karaoke_bar[i_bar] = 0x00;
}
i_last_duration = i_duration;
i_start_pos += pi_k_run_lengths[ k ];
}
}
free( p_levels );
free( p_new_positions );
FT_Vector tmp_result;
......@@ -2203,13 +2014,13 @@ static int ProcessLines( filter_t *p_filter,
tmp_result.x = tmp_result.y = 0;
i_prev = 0;
for( k = 0; k <= (uint32_t) i_len; k++ )
for( uint32_t k = 0; k <= (uint32_t) i_len; k++ )
{
if( ( k == (uint32_t) i_len ) ||
( ( k > 0 ) &&
!StyleEquals( pp_char_styles[ k ], pp_char_styles[ k - 1] ) ) )
!StyleEquals( pp_styles[ k ], pp_styles[ k - 1] ) ) )
{
text_style_t *p_style = pp_char_styles[ k - 1 ];
text_style_t *p_style = pp_styles[ k - 1 ];
/* End of the current style run */
FT_Face p_face = NULL;
......@@ -2257,10 +2068,8 @@ static int ProcessLines( filter_t *p_filter,
psz_fontfile, i_idx, &p_face ) )
{
free( psz_fontfile );
free( pp_char_styles );
#if defined(HAVE_FRIBIDI)
free( psz_text );
#endif
free( pp_fribidi_styles );
free( p_fribidi_string );
free( pi_karaoke_bar );
return VLC_EGENERIC;
}
......@@ -2283,10 +2092,8 @@ static int ProcessLines( filter_t *p_filter,
p_style->i_font_size ) )
{
if( p_face ) FT_Done_Face( p_face );
free( pp_char_styles );
#if defined(HAVE_FRIBIDI)
free( psz_text );
#endif
free( pp_fribidi_styles );
free( p_fribidi_string );
free( pi_karaoke_bar );
return VLC_EGENERIC;
}
......@@ -2298,11 +2105,9 @@ static int ProcessLines( filter_t *p_filter,
if( !psz_unicode )
{
if( p_face ) FT_Done_Face( p_face );
free( pp_char_styles );
free( pp_fribidi_styles );
free( psz_unicode );
#if defined(HAVE_FRIBIDI)
free( psz_text );
#endif
free( p_fribidi_string );
free( pi_karaoke_bar );
return VLC_ENOMEM;
}
......@@ -2316,11 +2121,9 @@ static int ProcessLines( filter_t *p_filter,
if( !(p_line = NewLine( i_len - i_prev)) )
{
if( p_face ) FT_Done_Face( p_face );
free( pp_char_styles );
free( pp_fribidi_styles );
free( psz_unicode );
#if defined(HAVE_FRIBIDI)
free( psz_text );
#endif
free( p_fribidi_string );
free( pi_karaoke_bar );
return VLC_ENOMEM;
}
......@@ -2340,11 +2143,9 @@ static int ProcessLines( filter_t *p_filter,
&tmp_result ) != VLC_SUCCESS )
{
if( p_face ) FT_Done_Face( p_face );
free( pp_char_styles );
free( pp_fribidi_styles );
free( psz_unicode );
#if defined(HAVE_FRIBIDI)
free( psz_text );
#endif
free( p_fribidi_string );
free( pi_karaoke_bar );
return VLC_EGENERIC;
}
......@@ -2373,10 +2174,9 @@ static int ProcessLines( filter_t *p_filter,
i_prev = k;
}
}
free( pp_char_styles );
#if defined(HAVE_FRIBIDI)
free( psz_text );
#endif
free( pp_fribidi_styles );
free( p_fribidi_string );
if( p_line )
{
p_result->x = __MAX( p_result->x, tmp_result.x );
......@@ -2388,7 +2188,7 @@ static int ProcessLines( filter_t *p_filter,
int i = 0;
for( p_line = *pp_lines; p_line; p_line=p_line->p_next )
{
for( k = 0; p_line->pp_glyphs[ k ]; k++, i++ )
for( uint32_t k = 0; p_line->pp_glyphs[ k ]; k++, i++ )
{
if( (pi_karaoke_bar[ i ] & 0x7f) == 0x7f)
{
......@@ -2444,12 +2244,17 @@ static int RenderCommon( filter_t *p_filter, subpicture_region_t *p_region_out,
if( !b_html && !p_region_in->psz_text )
return VLC_EGENERIC;
uint32_t *psz_text = calloc( strlen( b_html ? p_region_in->psz_html
: p_region_in->psz_text ),
sizeof( *psz_text ) );
if( !psz_text )
return VLC_EGENERIC;
const size_t i_text_max = strlen( b_html ? p_region_in->psz_html
: p_region_in->psz_text );
uint32_t *psz_text = calloc( i_text_max, sizeof( *psz_text ) );
text_style_t **pp_styles = calloc( i_text_max, sizeof( *pp_styles ) );
if( !psz_text || !pp_styles )
{
free( psz_text );
free( pp_styles );
return VLC_EGENERIC;
}
/* Reset the default fontsize in case screen metrics have changed */
p_filter->p_sys->i_font_size = GetFontSize( p_filter );
......@@ -2460,13 +2265,7 @@ static int RenderCommon( filter_t *p_filter, subpicture_region_t *p_region_out,
FT_Vector result = {0, 0};
line_desc_t *p_lines = NULL;
uint32_t i_runs = 0;
uint32_t i_k_runs = 0;
uint32_t *pi_run_lengths = NULL;
uint32_t *pi_k_run_lengths = NULL;
uint32_t *pi_k_durations = NULL;
text_style_t **pp_styles = NULL;
bool b_karaoke = false;
#ifdef HAVE_STYLES
if( b_html )
......@@ -2495,15 +2294,11 @@ static int RenderCommon( filter_t *p_filter, subpicture_region_t *p_region_out,
if( xml_ReaderNextNode( p_xml_reader, &node ) == XML_READER_STARTELEM )
{
if( !strcasecmp( "karaoke", node ) )
{
b_karaoke = true;
}
else if( !strcasecmp( "text", node ) )
if( strcasecmp( "karaoke", node ) == 0 )
{
b_karaoke = false;
pi_k_durations = calloc( i_text_max, sizeof( *pi_k_durations ) );
}
else
else if( strcasecmp( "text", node ) != 0 )
{
/* Only text and karaoke tags are supported */
msg_Dbg( p_filter, "Unsupported top-level tag <%s> ignored.",
......@@ -2519,11 +2314,9 @@ static int RenderCommon( filter_t *p_filter, subpicture_region_t *p_region_out,
}
if( !rv )
{
rv = ProcessNodes( p_filter, p_xml_reader,
p_region_in->p_style, psz_text, &i_text_length,
&i_runs, &pi_run_lengths, &pp_styles,
b_karaoke, &i_k_runs, &pi_k_run_lengths,
&pi_k_durations );
rv = ProcessNodes( p_filter,
psz_text, pp_styles, pi_k_durations, &i_text_length,
p_xml_reader, p_region_in->p_style );
}
if( p_xml_reader )
......@@ -2554,28 +2347,18 @@ static int RenderCommon( filter_t *p_filter, subpicture_region_t *p_region_out,
i_text_length = SetupText( p_filter,
psz_text,
&i_runs, &pi_run_lengths, &pp_styles,
p_region_in->psz_text, p_style );
pp_styles,
NULL,
p_region_in->psz_text, p_style, 0 );
}
if( !rv && i_text_length > 0 )
{
rv = ProcessLines( p_filter, psz_text, i_text_length, i_runs,
pi_run_lengths, pp_styles, &p_lines,
&result, b_karaoke, i_k_runs,
pi_k_run_lengths, pi_k_durations );
rv = ProcessLines( p_filter,
&p_lines, &result,
psz_text, pp_styles, pi_k_durations, i_text_length );
}
free( psz_text );
for( uint32_t k = 0; k < i_runs; k++ )
text_style_Delete( pp_styles[k] );
free( pp_styles );
free( pi_run_lengths );
free( pi_k_run_lengths );
free( pi_k_durations );
p_region_out->i_x = p_region_in->i_x;
p_region_out->i_y = p_region_in->i_y;
......@@ -2594,11 +2377,21 @@ static int RenderCommon( filter_t *p_filter, subpicture_region_t *p_region_out,
/* With karaoke, we're going to have to render the text a number
* of times to show the progress marker on the text.
*/
if( b_karaoke )
if( pi_k_durations )
var_SetBool( p_filter, "text-rerender", true );
}
FreeLines( p_lines );
free( psz_text );
for( int i = 0; i < i_text_length; i++ )
{
if( pp_styles[i] && ( i + 1 == i_text_length || pp_styles[i] != pp_styles[i + 1] ) )
text_style_Delete( pp_styles[i] );
}
free( pp_styles );
free( pi_k_durations );
return rv;
}
......
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