static void Destroy( vlc_object_t * );
/* The RenderText call maps to pf_render_string, defined in vlc_filter.h */
-static subpicture_region_t *RenderText( filter_t *, subpicture_t *,
- subpicture_region_t* );
+static int RenderText( filter_t *, subpicture_region_t *,
+ subpicture_region_t * );
static line_desc_t *NewLine( byte_t * );
/*****************************************************************************
"If set to something different than 0 this option will override the " \
"relative font size " )
#define OPACITY_TEXT N_("Opacity, 0..255")
-#define OPACITY_LONGTEXT N_("The opacity (inverse of transparency) of overlay text. " \
- "1 = transparent, 255 = totally opaque. " )
+#define OPACITY_LONGTEXT N_("The opacity (inverse of transparency) of " \
+ "overlay text. 0 = transparent, 255 = totally opaque. " )
#define COLOR_TEXT N_("Text Default Color")
-#define COLOR_LONGTEXT N_("The color of overlay text. 1 byte for each color, hexadecimal." \
- "#000000 = all colors off, 0xFF0000 = just Red, 0xFFFFFF = all color on [White]" )
+#define COLOR_LONGTEXT N_("The color of overlay text. 1 byte for each color, "\
+ "hexadecimal. #000000 = all colors off, 0xFF0000 = just Red, " \
+ "0xFFFFFF = all color on [White]" )
#define FONTSIZER_TEXT N_("Font size")
#define FONTSIZER_LONGTEXT N_("The size of the fonts used by the osd module" )
set_callbacks( Create, Destroy );
vlc_module_end();
-/**
- * Private data in a subpicture. Describes a string.
- */
-typedef struct subpicture_data_t
-{
- int i_width;
- int i_height;
- /** The string associated with this subpicture */
- byte_t *psz_text;
- line_desc_t *p_lines;
-
-} subpicture_data_t;
-
struct line_desc_t
{
/** NULL-terminated list of glyphs making the string */
FT_BitmapGlyph *pp_glyphs;
/** list of relative positions for the glyphs */
FT_Vector *p_glyph_pos;
+
int i_height;
int i_width;
+ int i_red, i_green, i_blue;
+ int i_alpha;
+
line_desc_t *p_next;
};
-static subpicture_region_t *Render( filter_t *, subpicture_t *, subpicture_data_t *, uint8_t, int, int, int );
-static void FreeString( subpicture_data_t * );
+static int Render( filter_t *, subpicture_region_t *, line_desc_t *, int, int);
+static void FreeLines( line_desc_t * );
static void FreeLine( line_desc_t * );
/*****************************************************************************
FT_Library p_library; /* handle to library */
FT_Face p_face; /* handle to face object */
vlc_bool_t i_use_kerning;
- uint8_t i_font_opacity; /* freetype-opacity */
- int i_font_color; /* freetype-color */
- int i_red, i_blue, i_green; /* function vars to render */
+ uint8_t i_font_opacity;
+ int i_font_color;
int i_font_size;
- uint8_t i_opacity; /* function var to render */
- uint8_t pi_gamma[256];
};
/*****************************************************************************
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys;
char *psz_fontfile = NULL;
- int i, i_error;
+ int i_error;
vlc_value_t val;
/* Allocate structure */
p_sys->p_face = 0;
p_sys->p_library = 0;
p_sys->i_font_size = 0;
-
- for( i = 0; i < 256; i++ ) p_sys->pi_gamma[i] = i + (256 - i) / 16;
- p_sys->pi_gamma[0] = 0;
var_Create( p_filter, "freetype-font",
VLC_VAR_STRING | VLC_VAR_DOINHERIT );
var_Create( p_filter, "freetype-color",
VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
var_Get( p_filter, "freetype-color", &val );
- if( ( val.i_int > -1 ) && ( val.i_int < 0x01000000 ) ) /* valid range */
- {
- p_sys->i_font_color = val.i_int;
- }
- else msg_Warn(p_filter, "Invalid freetype color specified, using white [0xFFFFFF]");
+ p_sys->i_font_color = __MIN( val.i_int, 0xFFFFFF );
/* Look what method was requested */
var_Get( p_filter, "freetype-font", &val );
msg_Warn( p_filter, "Invalid fontsize, using 12" );
p_sys->i_font_size = 12;
}
- msg_Dbg( p_filter, "Using fontsize: %i", p_sys->i_font_size);
+ msg_Dbg( p_filter, "Using fontsize: %i", p_sys->i_font_size );
i_error = FT_Set_Pixel_Sizes( p_sys->p_face, 0, p_sys->i_font_size );
if( i_error )
}
if( psz_fontfile ) free( psz_fontfile );
- p_filter->pf_render_string = RenderText;
+ p_filter->pf_render_text = RenderText;
p_filter->p_sys = p_sys;
return VLC_SUCCESS;
*****************************************************************************
* This function merges the previously rendered freetype glyphs into a picture
*****************************************************************************/
-static subpicture_region_t *Render( filter_t *p_filter, subpicture_t *p_spu,
- subpicture_data_t *p_string,
- uint8_t opacity,
- int red, int green, int blue)
+static int Render( filter_t *p_filter, subpicture_region_t *p_region,
+ line_desc_t *p_line, int i_width, int i_height )
{
- filter_sys_t *p_sys = p_filter->p_sys;
- line_desc_t *p_line;
- uint8_t *p_y, *p_u, *p_v, *p_a;
+ uint8_t *p_dst;
video_format_t fmt;
int i, x, y, i_pitch;
- uint8_t i_y, i_u, i_v; /* YUV values, derived from incoming RGB */
- subpicture_region_t *p_region;
-
- /* Calculate text color components */
- i_y = (uint8_t)(( 66 * red + 129 * green + 25 * blue + 128) >> 8) + 16;
- i_u = (uint8_t)(( -38 * red - 74 * green + 112 * blue + 128) >> 8) + 128;
- i_v = (uint8_t)(( 112 * red - 94 * green - 18 * blue + 128) >> 8) + 128;
+ uint8_t i_y; /* YUV values, derived from incoming RGB */
+ int8_t i_u, i_v;
+ subpicture_region_t *p_region_tmp;
/* Create a new subpicture region */
memset( &fmt, 0, sizeof(video_format_t) );
- fmt.i_chroma = VLC_FOURCC('Y','U','V','A');
+ fmt.i_chroma = VLC_FOURCC('Y','U','V','P');
fmt.i_aspect = VOUT_ASPECT_FACTOR;
- fmt.i_width = fmt.i_visible_width = p_string->i_width + 2;
- fmt.i_height = fmt.i_visible_height = p_string->i_height + 2;
+ fmt.i_width = fmt.i_visible_width = i_width + 2;
+ fmt.i_height = fmt.i_visible_height = i_height + 2;
fmt.i_x_offset = fmt.i_y_offset = 0;
- p_region = p_spu->pf_create_region( VLC_OBJECT(p_filter), &fmt );
- if( !p_region )
+ p_region_tmp = spu_CreateRegion( p_filter, &fmt );
+ if( !p_region_tmp )
{
msg_Err( p_filter, "cannot allocate SPU region" );
- return NULL;
+ return VLC_EGENERIC;
}
- p_region->i_x = p_region->i_y = 0;
- p_y = p_region->picture.Y_PIXELS;
- p_u = p_region->picture.U_PIXELS;
- p_v = p_region->picture.V_PIXELS;
- p_a = p_region->picture.A_PIXELS;
+ p_region->fmt = p_region_tmp->fmt;
+ p_region->picture = p_region_tmp->picture;
+ free( p_region_tmp );
+
+ /* Calculate text color components */
+ i_y = (uint8_t)(( 66 * p_line->i_red + 129 * p_line->i_green +
+ 25 * p_line->i_blue + 128) >> 8) + 16;
+ i_u = (int8_t)(( -38 * p_line->i_red - 74 * p_line->i_green +
+ 112 * p_line->i_blue + 128) >> 8) + 128;
+ i_v = (int8_t)(( 112 * p_line->i_red - 94 * p_line->i_green -
+ 18 * p_line->i_blue + 128) >> 8) + 128;
+
+ /* Build palette */
+ fmt.p_palette->i_entries = 256;
+ for( i = 0; i < fmt.p_palette->i_entries; i++ )
+ {
+ fmt.p_palette->palette[i][0] = i * i_y / 256;
+ fmt.p_palette->palette[i][1] = i_u;
+ fmt.p_palette->palette[i][2] = i_v;
+ fmt.p_palette->palette[i][3] =
+ i + (256 - i) * (256 / (255 - p_line->i_alpha)) / 16;
+ }
+ fmt.p_palette->palette[0][3] = 0;
+
+ p_dst = p_region->picture.Y_PIXELS;
i_pitch = p_region->picture.Y_PITCH;
/* Initialize the region pixels */
- memset( p_y, 0x00, i_pitch * p_region->fmt.i_height );
- memset( p_u, 0x80, i_pitch * p_region->fmt.i_height );
- memset( p_v, 0x80, i_pitch * p_region->fmt.i_height );
- memset( p_a, 0x00, i_pitch * p_region->fmt.i_height );
-
-#define pi_gamma p_sys->pi_gamma
+ memset( p_dst, 0, i_pitch * p_region->fmt.i_height );
- for( p_line = p_string->p_lines; p_line != NULL; p_line = p_line->p_next )
+ for( ; p_line != NULL; p_line = p_line->p_next )
{
int i_glyph_tmax = 0;
int i_bitmap_offset, i_offset;
{
for( x = 0; x < p_glyph->bitmap.width; x++, i_bitmap_offset++ )
{
- if( !pi_gamma[p_glyph->bitmap.buffer[i_bitmap_offset]] )
+ if( !p_glyph->bitmap.buffer[i_bitmap_offset] )
continue;
i_offset -= i_pitch;
- p_a[i_offset + x] = ((uint16_t)p_a[i_offset + x] +
- pi_gamma[p_glyph->bitmap.buffer[i_bitmap_offset]])*opacity/512;
+ p_dst[i_offset + x] = ((uint16_t)p_dst[i_offset + x]*2 +
+ p_glyph->bitmap.buffer[i_bitmap_offset])/3;
i_offset += i_pitch; x--;
- p_a[i_offset + x] = ((uint16_t)p_a[i_offset + x] +
- pi_gamma[p_glyph->bitmap.buffer[i_bitmap_offset]])*opacity/512;
+ p_dst[i_offset + x] = ((uint16_t)p_dst[i_offset + x]*2 +
+ p_glyph->bitmap.buffer[i_bitmap_offset])/3;
x += 2;
- p_a[i_offset + x] = ((uint16_t)p_a[i_offset + x] +
- pi_gamma[p_glyph->bitmap.buffer[i_bitmap_offset]])*opacity/512;
+ p_dst[i_offset + x] = ((uint16_t)p_dst[i_offset + x]*2 +
+ p_glyph->bitmap.buffer[i_bitmap_offset])/3;
i_offset += i_pitch; x--;
- p_a[i_offset + x] = ((uint16_t)p_a[i_offset + x] +
- pi_gamma[p_glyph->bitmap.buffer[i_bitmap_offset]])*opacity/512;
+ p_dst[i_offset + x] = ((uint16_t)p_dst[i_offset + x]*2 +
+ p_glyph->bitmap.buffer[i_bitmap_offset])/3;
i_offset -= i_pitch;
}
i_offset += i_pitch;
{
for( x = 0; x < p_glyph->bitmap.width; x++, i_bitmap_offset++ )
{
- p_y[i_offset + x] = i_y*opacity*pi_gamma[p_glyph->bitmap.buffer[i_bitmap_offset]]/(256*256);
- p_u[i_offset + x] = i_u;
- p_v[i_offset + x] = i_v;
+ if( p_glyph->bitmap.buffer[i_bitmap_offset] > 16 )
+ p_dst[i_offset+x] = p_glyph->bitmap.buffer[i_bitmap_offset];
}
i_offset += i_pitch;
}
-
-#undef pi_gamma
}
}
- return p_region;
+
+ return VLC_SUCCESS;
}
/**
- * This function receives a string and creates a subpicture for it. It
- * also calculates the size needed for this string, and renders the
+ * This function renders a text subpicture region into another one.
+ * It also calculates the size needed for this string, and renders the
* needed glyphs into memory. It is used as pf_add_string callback in
* the vout method by this module
*/
-static subpicture_region_t *RenderText( filter_t *p_filter,
- subpicture_t *p_subpic,
- subpicture_region_t *p_region )
+static int RenderText( filter_t *p_filter, subpicture_region_t *p_region_out,
+ subpicture_region_t *p_region_in )
{
filter_sys_t *p_sys = p_filter->p_sys;
- subpicture_data_t *p_string = 0;
- line_desc_t *p_line = 0, *p_next = 0, *p_prev = 0;
+ line_desc_t *p_lines = 0, *p_line = 0, *p_next = 0, *p_prev = 0;
int i, i_pen_y, i_pen_x, i_error, i_glyph_index, i_previous;
uint32_t *psz_unicode, *psz_unicode_orig = 0, i_char, *psz_line_start;
int i_string_length;
char *psz_string;
vlc_iconv_t iconv_handle = (vlc_iconv_t)(-1);
- int i_font_color, i_font_opacity, i_font_size;
- subpicture_region_t *p_res;
+ int i_font_color, i_font_alpha, i_font_size, i_red, i_green, i_blue;
FT_BBox line;
FT_BBox glyph_size;
FT_Glyph tmp_glyph;
/* Sanity check */
- if( !p_region ) return NULL;
- psz_string = p_region->psz_text;
- if( !psz_string || !*psz_string ) goto error;
- i_font_color = p_region->i_font_color;
- i_font_opacity = p_region->i_font_opacity;
- i_font_size = p_region->i_font_size;
-
- result.x = 0;
- result.y = 0;
- line.xMin = 0;
- line.xMax = 0;
- line.yMin = 0;
- line.yMax = 0;
-
- /* Create and initialize private data for the subpicture */
- p_string = malloc( sizeof(subpicture_data_t) );
- if( !p_string )
- {
- msg_Err( p_filter, "out of memory" );
- goto error;
- }
- p_string->p_lines = 0;
- p_string->psz_text = strdup( psz_string );
+ if( !p_region_in || !p_region_out ) return VLC_EGENERIC;
+ psz_string = p_region_in->psz_text;
+ if( !psz_string || !*psz_string ) return VLC_EGENERIC;
+
+ i_font_color = 0xFFFFFF;//p_region_in->i_text_color;
+ if( i_font_color == 0xFFFFFF ) i_font_color = p_sys->i_font_color;
+
+ i_font_alpha = p_region_in->i_text_alpha;
+ if( !i_font_alpha ) i_font_alpha = 255 - p_sys->i_font_opacity;
+
+ i_font_size = p_region_in->i_text_size;
+ if( !i_font_size ) i_font_size = p_sys->i_font_size;
+
+ i_red = ( i_font_color & 0x00FF0000 ) >> 16;
+ i_green = ( i_font_color & 0x0000FF00 ) >> 8;
+ i_blue = i_font_color & 0x000000FF;
+
+ result.x = result.y = 0;
+ line.xMin = line.xMax = line.yMin = line.yMax = 0;
psz_unicode = psz_unicode_orig =
malloc( ( strlen(psz_string) + 1 ) * sizeof(uint32_t) );
/* Calculate relative glyph positions and a bounding box for the
* entire string */
- p_line = NewLine( psz_string );
- if( p_line == NULL )
+ if( !(p_line = NewLine( psz_string )) )
{
msg_Err( p_filter, "out of memory" );
goto error;
}
- p_string->p_lines = p_line;
- i_pen_x = 0;
- i_pen_y = 0;
- i_previous = 0;
- i = 0;
+ p_lines = p_line;
+ i_pen_x = i_pen_y = 0;
+ i_previous = i = 0;
psz_line_start = psz_unicode;
#define face p_sys->p_face
if( i_char == '\n' )
{
psz_line_start = psz_unicode;
- p_next = NewLine( psz_string );
- if( p_next == NULL )
+ if( !(p_next = NewLine( psz_string )) )
{
msg_Err( p_filter, "out of memory" );
goto error;
p_line->i_width = line.xMax;
p_line->i_height = face->size->metrics.height >> 6;
p_line->pp_glyphs[ i ] = NULL;
+ p_line->i_alpha = i_font_alpha;
+ p_line->i_red = i_red;
+ p_line->i_green = i_green;
+ p_line->i_blue = i_blue;
p_prev = p_line;
p_line = p_next;
result.x = __MAX( result.x, line.xMax );
result.y += face->size->metrics.height >> 6;
i_pen_x = 0;
- i_previous = 0;
- line.xMin = 0;
- line.xMax = 0;
- line.yMin = 0;
- line.yMax = 0;
+ i_previous = i = 0;
+ line.xMin = line.xMax = line.yMin = line.yMax = 0;
i_pen_y += face->size->metrics.height >> 6;
#if 0
msg_Dbg( p_filter, "Creating new line, i is %d", i );
#endif
- i = 0;
continue;
}
goto error;
}
FT_Glyph_Get_CBox( tmp_glyph, ft_glyph_bbox_pixels, &glyph_size );
- i_error = FT_Glyph_To_Bitmap( &tmp_glyph, ft_render_mode_normal,
- NULL, 1 );
+ i_error = FT_Glyph_To_Bitmap( &tmp_glyph, ft_render_mode_normal, 0, 1);
if( i_error ) continue;
p_line->pp_glyphs[ i ] = (FT_BitmapGlyph)tmp_glyph;
/* Do rest */
- line.xMax = p_line->p_glyph_pos[i].x + glyph_size.xMax - glyph_size.xMin + ((FT_BitmapGlyph)tmp_glyph)->left;
- if( line.xMax > p_filter->fmt_out.video.i_visible_width - 20 )
+ 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 )
{
p_line->pp_glyphs[ i ] = NULL;
FreeLine( p_line );
p_line = NewLine( psz_string );
- if( p_prev )
- {
- p_prev->p_next = p_line;
- }
- else
- {
- p_string->p_lines = p_line;
- }
+ if( p_prev ) p_prev->p_next = p_line;
+ else p_lines = p_line;
+
while( psz_unicode > psz_line_start && *psz_unicode != ' ' )
{
psz_unicode--;
}
else
{
-
*psz_unicode = '\n';
}
psz_unicode = psz_line_start;
i_pen_x = 0;
- i_previous = 0;
- line.xMin = 0;
- line.xMax = 0;
- line.yMin = 0;
- line.yMax = 0;
- i = 0;
+ i_previous = i = 0;
+ line.xMin = line.xMax = line.yMin = line.yMax = 0;
continue;
}
line.yMax = __MAX( line.yMax, glyph_size.yMax );
p_line->i_width = line.xMax;
p_line->i_height = face->size->metrics.height >> 6;
p_line->pp_glyphs[ i ] = NULL;
+ p_line->i_alpha = i_font_alpha;
+ p_line->i_red = i_red;
+ p_line->i_green = i_green;
+ p_line->i_blue = i_blue;
result.x = __MAX( result.x, line.xMax );
result.y += line.yMax - line.yMin;
- p_string->i_height = result.y;
- p_string->i_width = result.x;
#undef face
#undef glyph
-/* check to see whether to use the default color/opacity, or another one: */
- if( i_font_color < 0 )
- {
- p_sys->i_blue = p_sys->i_font_color & 0x000000FF;
- p_sys->i_green = ( p_sys->i_font_color & 0x0000FF00 ) >> 8;
- p_sys->i_red = ( p_sys->i_font_color & 0x00FF0000 ) >> 16;
- }
- else
- {
- p_sys->i_blue = i_font_color & 0x000000FF;
- p_sys->i_green = ( i_font_color & 0x0000FF00 ) >> 8;
- p_sys->i_red = ( i_font_color & 0x00FF0000 ) >> 16;
- }
- if( i_font_opacity < 0 )
- {
- p_sys->i_opacity = p_sys->i_font_opacity;
- }
- else
- {
- p_sys->i_opacity = (uint8_t)( i_font_opacity & 0x000000FF );
- }
- p_res = Render( p_filter, p_subpic, p_string, p_sys->i_opacity,
- p_sys->i_red, p_sys->i_green, p_sys->i_blue );
- FreeString( p_string );
+ p_region_out->i_x = p_region_in->i_x;
+ p_region_out->i_y = p_region_in->i_y;
+
+ Render( p_filter, p_region_out, p_line, result.x, result.y );
+
if( psz_unicode_orig ) free( psz_unicode_orig );
- return p_res;
+ FreeLines( p_lines );
+ return VLC_SUCCESS;
error:
- FreeString( p_string );
- if( p_subpic ) p_filter->pf_sub_buffer_del( p_filter, p_subpic );
if( psz_unicode_orig ) free( psz_unicode_orig );
- return NULL;
+ FreeLines( p_lines );
+ return VLC_EGENERIC;
}
static void FreeLine( line_desc_t *p_line )
free( p_line );
}
-static void FreeString( subpicture_data_t *p_string )
+static void FreeLines( line_desc_t *p_lines )
{
line_desc_t *p_line, *p_next;
- if( !p_string ) return;
+ if( !p_lines ) return;
- for( p_line = p_string->p_lines; p_line != NULL; p_line = p_next )
+ for( p_line = p_lines; p_line != NULL; p_line = p_next )
{
p_next = p_line->p_next;
FreeLine( p_line );
}
-
- free( p_string->psz_text );
- free( p_string );
}
static line_desc_t *NewLine( byte_t *psz_string )
{
int i_count;
line_desc_t *p_line = malloc( sizeof(line_desc_t) );
- if( !p_line )
- {
- return NULL;
- }
+
+ if( !p_line ) return NULL;
p_line->i_height = 0;
p_line->i_width = 0;
p_line->p_next = NULL;
* sure the string is utf8. Better be safe than sorry. */
i_count = strlen( psz_string );
- p_line->pp_glyphs = malloc( sizeof(FT_BitmapGlyph)
- * ( i_count + 1 ) );
+ p_line->pp_glyphs = malloc( sizeof(FT_BitmapGlyph) * ( i_count + 1 ) );
if( p_line->pp_glyphs == NULL )
{
free( p_line );
}
p_line->pp_glyphs[0] = NULL;
- p_line->p_glyph_pos = malloc( sizeof( FT_Vector )
- * i_count + 1 );
+ p_line->p_glyph_pos = malloc( sizeof( FT_Vector ) * i_count + 1 );
if( p_line->p_glyph_pos == NULL )
{
free( p_line->pp_glyphs );
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