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vlc-2-2
Commit a64b8e49 authored by Laurent Aimar's avatar Laurent Aimar
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Moved down a function in freetype.c

parent 325b6265
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Showing with 201 additions and 201 deletions
modules/misc/text_renderer/freetype.c
View file @ a64b8e49
......@@ -1418,207 +1418,6 @@ static text_style_t *GetStyleFromFontStack( filter_sys_t *p_sys,
i_style_flags );
}
static int RenderTag( filter_t *p_filter, FT_Face p_face,
const text_style_t *p_style,
line_desc_t *p_line, uint32_t *psz_unicode,
int *pi_pen_x, int i_pen_y, int *pi_start,
FT_Vector *p_result )
{
FT_BBox line;
int i_yMin, i_yMax;
int i;
bool b_first_on_line = true;
int i_previous = 0;
int i_pen_x_start = *pi_pen_x;
uint32_t *psz_unicode_start = psz_unicode;
line.xMin = line.xMax = line.yMin = line.yMax = 0;
/* Account for part of line already in position */
for( i = 0; i<*pi_start; i++ )
{
FT_BBox glyph_size;
FT_Glyph_Get_CBox( (FT_Glyph) p_line->pp_glyphs[ i ],
ft_glyph_bbox_pixels, &glyph_size );
line.xMax = p_line->p_glyph_pos[ i ].x + glyph_size.xMax -
glyph_size.xMin + p_line->pp_glyphs[ i ]->left;
line.yMax = __MAX( line.yMax, glyph_size.yMax );
line.yMin = __MIN( line.yMin, glyph_size.yMin );
}
i_yMin = line.yMin;
i_yMax = line.yMax;
if( line.xMax > 0 )
b_first_on_line = false;
while( *psz_unicode && ( *psz_unicode != '\n' ) )
{
FT_BBox glyph_size;
FT_Glyph tmp_glyph;
int i_error;
int i_glyph_index = FT_Get_Char_Index( p_face, *psz_unicode++ );
if( FT_HAS_KERNING( p_face ) && i_glyph_index
&& i_previous )
{
FT_Vector delta;
FT_Get_Kerning( p_face, i_previous, i_glyph_index,
ft_kerning_default, &delta );
*pi_pen_x += delta.x >> 6;
}
p_line->p_glyph_pos[ i ].x = *pi_pen_x;
p_line->p_glyph_pos[ i ].y = i_pen_y;
i_error = FT_Load_Glyph( p_face, i_glyph_index, FT_LOAD_NO_BITMAP | FT_LOAD_DEFAULT );
if( i_error )
{
i_error = FT_Load_Glyph( p_face, i_glyph_index, FT_LOAD_DEFAULT );
if( i_error )
{
msg_Err( p_filter,
"unable to render text FT_Load_Glyph returned %d", i_error );
p_line->pp_glyphs[ i ] = NULL;
return VLC_EGENERIC;
}
}
/* Do synthetic styling now that Freetype supports it;
* ie. if the font we have loaded is NOT already in the
* style that the tags want, then switch it on; if they
* are then don't. */
if ((p_style->i_style_flags & STYLE_BOLD) && !(p_face->style_flags & FT_STYLE_FLAG_BOLD))
FT_GlyphSlot_Embolden( p_face->glyph );
if ((p_style->i_style_flags & STYLE_ITALIC) && !(p_face->style_flags & FT_STYLE_FLAG_ITALIC))
FT_GlyphSlot_Oblique( p_face->glyph );
i_error = FT_Get_Glyph( p_face->glyph, &tmp_glyph );
if( i_error )
{
msg_Err( p_filter,
"unable to render text FT_Get_Glyph returned %d", i_error );
p_line->pp_glyphs[ i ] = NULL;
return VLC_EGENERIC;
}
FT_Glyph_Get_CBox( tmp_glyph, ft_glyph_bbox_pixels, &glyph_size );
i_error = FT_Glyph_To_Bitmap( &tmp_glyph, FT_RENDER_MODE_NORMAL, 0, 1);
if( i_error )
{
FT_Done_Glyph( tmp_glyph );
continue;
}
if( p_style->i_style_flags & (STYLE_UNDERLINE | STYLE_STRIKEOUT) )
{
float aOffset = FT_FLOOR(FT_MulFix(p_face->underline_position,
p_face->size->metrics.y_scale));
float aSize = FT_CEIL(FT_MulFix(p_face->underline_thickness,
p_face->size->metrics.y_scale));
p_line->pi_underline_offset[ i ] =
( aOffset < 0 ) ? -aOffset : aOffset;
p_line->pi_underline_thickness[ i ] =
( aSize < 0 ) ? -aSize : aSize;
if( p_style->i_style_flags & STYLE_STRIKEOUT )
{
/* Move the baseline to make it strikethrough instead of
* underline. That means that strikethrough takes precedence
*/
float aDescent = FT_FLOOR(FT_MulFix(p_face->descender*2,
p_face->size->metrics.y_scale));
p_line->pi_underline_offset[ i ] -=
( aDescent < 0 ) ? -aDescent : aDescent;
}
}
p_line->pp_glyphs[ i ] = (FT_BitmapGlyph)tmp_glyph;
p_line->p_fg_rgb[ i ] = p_style->i_font_color;
p_line->p_bg_rgb[ i ] = p_style->i_karaoke_background_color;
p_line->p_fg_bg_ratio[ i ] = 0x00;
line.xMax = p_line->p_glyph_pos[i].x + glyph_size.xMax -
glyph_size.xMin + ((FT_BitmapGlyph)tmp_glyph)->left;
if( line.xMax > (int)p_filter->fmt_out.video.i_visible_width - 20 )
{
for( ; i >= *pi_start; i-- )
FT_Done_Glyph( (FT_Glyph)p_line->pp_glyphs[ i ] );
i = *pi_start;
while( psz_unicode > psz_unicode_start && *psz_unicode != ' ' )
{
psz_unicode--;
}
if( psz_unicode == psz_unicode_start )
{
if( b_first_on_line )
{
msg_Warn( p_filter, "unbreakable string" );
p_line->pp_glyphs[ i ] = NULL;
return VLC_EGENERIC;
}
*pi_pen_x = i_pen_x_start;
p_line->i_width = line.xMax;
p_line->i_height = __MAX( p_line->i_height,
p_face->size->metrics.height >> 6 );
p_line->pp_glyphs[ i ] = NULL;
p_result->x = __MAX( p_result->x, line.xMax );
p_result->y = __MAX( p_result->y, __MAX( p_line->i_height,
i_yMax - i_yMin ) );
return VLC_SUCCESS;
}
else
{
*psz_unicode = '\n';
}
psz_unicode = psz_unicode_start;
*pi_pen_x = i_pen_x_start;
i_previous = 0;
line.yMax = i_yMax;
line.yMin = i_yMin;
continue;
}
line.yMax = __MAX( line.yMax, glyph_size.yMax );
line.yMin = __MIN( line.yMin, glyph_size.yMin );
i_previous = i_glyph_index;
*pi_pen_x += p_face->glyph->advance.x >> 6;
i++;
}
p_line->i_width = line.xMax;
p_line->i_height = __MAX( p_line->i_height,
p_face->size->metrics.height >> 6 );
p_line->pp_glyphs[ i ] = NULL;
p_result->x = __MAX( p_result->x, line.xMax );
p_result->y = __MAX( p_result->y, __MAX( p_line->i_height,
line.yMax - line.yMin ) );
*pi_start = i;
/* Get rid of any text processed - if necessary repositioning
* at the start of a new line of text
*/
if( !*psz_unicode )
{
*psz_unicode_start = '\0';
}
else if( psz_unicode > psz_unicode_start )
{
for( i=0; psz_unicode[ i ]; i++ )
psz_unicode_start[ i ] = psz_unicode[ i ];
psz_unicode_start[ i ] = '\0';
}
return VLC_SUCCESS;
}
static unsigned SetupText( filter_t *p_filter,
uint32_t *psz_text_out,
text_style_t **pp_styles,
......@@ -1886,6 +1685,207 @@ static line_desc_t *NewLine( int i_count )
return p_line;
}
static int RenderTag( filter_t *p_filter, FT_Face p_face,
const text_style_t *p_style,
line_desc_t *p_line, uint32_t *psz_unicode,
int *pi_pen_x, int i_pen_y, int *pi_start,
FT_Vector *p_result )
{
FT_BBox line;
int i_yMin, i_yMax;
int i;
bool b_first_on_line = true;
int i_previous = 0;
int i_pen_x_start = *pi_pen_x;
uint32_t *psz_unicode_start = psz_unicode;
line.xMin = line.xMax = line.yMin = line.yMax = 0;
/* Account for part of line already in position */
for( i = 0; i<*pi_start; i++ )
{
FT_BBox glyph_size;
FT_Glyph_Get_CBox( (FT_Glyph) p_line->pp_glyphs[ i ],
ft_glyph_bbox_pixels, &glyph_size );
line.xMax = p_line->p_glyph_pos[ i ].x + glyph_size.xMax -
glyph_size.xMin + p_line->pp_glyphs[ i ]->left;
line.yMax = __MAX( line.yMax, glyph_size.yMax );
line.yMin = __MIN( line.yMin, glyph_size.yMin );
}
i_yMin = line.yMin;
i_yMax = line.yMax;
if( line.xMax > 0 )
b_first_on_line = false;
while( *psz_unicode && ( *psz_unicode != '\n' ) )
{
FT_BBox glyph_size;
FT_Glyph tmp_glyph;
int i_error;
int i_glyph_index = FT_Get_Char_Index( p_face, *psz_unicode++ );
if( FT_HAS_KERNING( p_face ) && i_glyph_index
&& i_previous )
{
FT_Vector delta;
FT_Get_Kerning( p_face, i_previous, i_glyph_index,
ft_kerning_default, &delta );
*pi_pen_x += delta.x >> 6;
}
p_line->p_glyph_pos[ i ].x = *pi_pen_x;
p_line->p_glyph_pos[ i ].y = i_pen_y;
i_error = FT_Load_Glyph( p_face, i_glyph_index, FT_LOAD_NO_BITMAP | FT_LOAD_DEFAULT );
if( i_error )
{
i_error = FT_Load_Glyph( p_face, i_glyph_index, FT_LOAD_DEFAULT );
if( i_error )
{
msg_Err( p_filter,
"unable to render text FT_Load_Glyph returned %d", i_error );
p_line->pp_glyphs[ i ] = NULL;
return VLC_EGENERIC;
}
}
/* Do synthetic styling now that Freetype supports it;
* ie. if the font we have loaded is NOT already in the
* style that the tags want, then switch it on; if they
* are then don't. */
if ((p_style->i_style_flags & STYLE_BOLD) && !(p_face->style_flags & FT_STYLE_FLAG_BOLD))
FT_GlyphSlot_Embolden( p_face->glyph );
if ((p_style->i_style_flags & STYLE_ITALIC) && !(p_face->style_flags & FT_STYLE_FLAG_ITALIC))
FT_GlyphSlot_Oblique( p_face->glyph );
i_error = FT_Get_Glyph( p_face->glyph, &tmp_glyph );
if( i_error )
{
msg_Err( p_filter,
"unable to render text FT_Get_Glyph returned %d", i_error );
p_line->pp_glyphs[ i ] = NULL;
return VLC_EGENERIC;
}
FT_Glyph_Get_CBox( tmp_glyph, ft_glyph_bbox_pixels, &glyph_size );
i_error = FT_Glyph_To_Bitmap( &tmp_glyph, FT_RENDER_MODE_NORMAL, 0, 1);
if( i_error )
{
FT_Done_Glyph( tmp_glyph );
continue;
}
if( p_style->i_style_flags & (STYLE_UNDERLINE | STYLE_STRIKEOUT) )
{
float aOffset = FT_FLOOR(FT_MulFix(p_face->underline_position,
p_face->size->metrics.y_scale));
float aSize = FT_CEIL(FT_MulFix(p_face->underline_thickness,
p_face->size->metrics.y_scale));
p_line->pi_underline_offset[ i ] =
( aOffset < 0 ) ? -aOffset : aOffset;
p_line->pi_underline_thickness[ i ] =
( aSize < 0 ) ? -aSize : aSize;
if( p_style->i_style_flags & STYLE_STRIKEOUT )
{
/* Move the baseline to make it strikethrough instead of
* underline. That means that strikethrough takes precedence
*/
float aDescent = FT_FLOOR(FT_MulFix(p_face->descender*2,
p_face->size->metrics.y_scale));
p_line->pi_underline_offset[ i ] -=
( aDescent < 0 ) ? -aDescent : aDescent;
}
}
p_line->pp_glyphs[ i ] = (FT_BitmapGlyph)tmp_glyph;
p_line->p_fg_rgb[ i ] = p_style->i_font_color;
p_line->p_bg_rgb[ i ] = p_style->i_karaoke_background_color;
p_line->p_fg_bg_ratio[ i ] = 0x00;
line.xMax = p_line->p_glyph_pos[i].x + glyph_size.xMax -
glyph_size.xMin + ((FT_BitmapGlyph)tmp_glyph)->left;
if( line.xMax > (int)p_filter->fmt_out.video.i_visible_width - 20 )
{
for( ; i >= *pi_start; i-- )
FT_Done_Glyph( (FT_Glyph)p_line->pp_glyphs[ i ] );
i = *pi_start;
while( psz_unicode > psz_unicode_start && *psz_unicode != ' ' )
{
psz_unicode--;
}
if( psz_unicode == psz_unicode_start )
{
if( b_first_on_line )
{
msg_Warn( p_filter, "unbreakable string" );
p_line->pp_glyphs[ i ] = NULL;
return VLC_EGENERIC;
}
*pi_pen_x = i_pen_x_start;
p_line->i_width = line.xMax;
p_line->i_height = __MAX( p_line->i_height,
p_face->size->metrics.height >> 6 );
p_line->pp_glyphs[ i ] = NULL;
p_result->x = __MAX( p_result->x, line.xMax );
p_result->y = __MAX( p_result->y, __MAX( p_line->i_height,
i_yMax - i_yMin ) );
return VLC_SUCCESS;
}
else
{
*psz_unicode = '\n';
}
psz_unicode = psz_unicode_start;
*pi_pen_x = i_pen_x_start;
i_previous = 0;
line.yMax = i_yMax;
line.yMin = i_yMin;
continue;
}
line.yMax = __MAX( line.yMax, glyph_size.yMax );
line.yMin = __MIN( line.yMin, glyph_size.yMin );
i_previous = i_glyph_index;
*pi_pen_x += p_face->glyph->advance.x >> 6;
i++;
}
p_line->i_width = line.xMax;
p_line->i_height = __MAX( p_line->i_height,
p_face->size->metrics.height >> 6 );
p_line->pp_glyphs[ i ] = NULL;
p_result->x = __MAX( p_result->x, line.xMax );
p_result->y = __MAX( p_result->y, __MAX( p_line->i_height,
line.yMax - line.yMin ) );
*pi_start = i;
/* Get rid of any text processed - if necessary repositioning
* at the start of a new line of text
*/
if( !*psz_unicode )
{
*psz_unicode_start = '\0';
}
else if( psz_unicode > psz_unicode_start )
{
for( i=0; psz_unicode[ i ]; i++ )
psz_unicode_start[ i ] = psz_unicode[ i ];
psz_unicode_start[ i ] = '\0';
}
return VLC_SUCCESS;
}
static int ProcessLines( filter_t *p_filter,
line_desc_t **pp_lines,
......
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