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vlc-gpu
Commit a147594c authored by Laurent Aimar's avatar Laurent Aimar
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Implemented per glyph alpha support.

parent d16401e2
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Showing with 10 additions and 11 deletions
modules/misc/text_renderer/freetype.c
View file @ a147594c
......@@ -203,7 +203,7 @@ struct line_desc_t
FT_BitmapGlyph *pp_glyphs;
/** list of relative positions for the glyphs */
FT_Vector *p_glyph_pos;
/** list of RGB information for styled text */
/** list of ARGB information for styled text */
uint32_t *pi_color;
/** underline information -- only supplied if text should be underlined */
int *pi_underline_offset;
......@@ -211,8 +211,6 @@ struct line_desc_t
int i_width;
int i_alpha;
line_desc_t *p_next;
};
......@@ -599,6 +597,7 @@ static int RenderYUVP( filter_t *p_filter, subpicture_region_t *p_region,
/* Calculate text color components
* Only use the first color */
int i_alpha = 0xff - ((p_line->pi_color[ 0 ] >> 24) & 0xff);
YUVFromRGB( p_line->pi_color[ 0 ], &i_y, &i_u, &i_v );
/* Build palette */
......@@ -610,7 +609,7 @@ static int RenderYUVP( filter_t *p_filter, subpicture_region_t *p_region,
fmt.p_palette->palette[i][2] = 0x80;
fmt.p_palette->palette[i][3] = pi_gamma[i];
fmt.p_palette->palette[i][3] =
(int)fmt.p_palette->palette[i][3] * (255 - p_line->i_alpha) / 255;
(int)fmt.p_palette->palette[i][3] * i_alpha / 255;
}
for( i = 8; i < fmt.p_palette->i_entries; i++ )
{
......@@ -619,7 +618,7 @@ static int RenderYUVP( filter_t *p_filter, subpicture_region_t *p_region,
fmt.p_palette->palette[i][2] = i_v;
fmt.p_palette->palette[i][3] = pi_gamma[i];
fmt.p_palette->palette[i][3] =
(int)fmt.p_palette->palette[i][3] * (255 - p_line->i_alpha) / 255;
(int)fmt.p_palette->palette[i][3] * i_alpha / 255;
}
p_dst = p_region->p_picture->Y_PIXELS;
......@@ -864,7 +863,7 @@ static int RenderYUVA( filter_t *p_filter,
FT_BitmapGlyph p_glyph = p_line->pp_glyphs[i];
uint32_t i_color = p_line->pi_color[i];
i_a = 0xff; /* FIXME */
i_a = 0xff - ((i_color >> 24) & 0xff);
YUVFromRGB( i_color, &i_y, &i_u, &i_v );
int i_picture_y = p_line->p_glyph_pos[i].y + i_align_top;
......@@ -1498,7 +1497,6 @@ static line_desc_t *NewLine( int i_count )
return NULL;
p_line->i_width = 0;
p_line->i_alpha = 0xff;
p_line->p_next = NULL;
......@@ -1877,8 +1875,10 @@ static int ProcessLines( filter_t *p_filter,
.y = pen.y
};
bool b_karaoke = pi_karaoke_bar && pi_karaoke_bar[i_index] != 0;
uint32_t i_color = b_karaoke ? p_glyph_style->i_karaoke_background_color
: p_glyph_style->i_font_color;
uint32_t i_color = b_karaoke ? (p_glyph_style->i_karaoke_background_color |
(p_glyph_style->i_karaoke_background_alpha << 24))
: (p_glyph_style->i_font_color |
(p_glyph_style->i_font_alpha << 24));
int i_ul_offset = 0;
int i_ul_thickness = 0;
if( p_glyph_style->i_style_flags & (STYLE_UNDERLINE | STYLE_STRIKEOUT) )
......@@ -1943,7 +1943,7 @@ static int ProcessLines( filter_t *p_filter,
int i_line_index = i_index - i_start;
p_line->pp_glyphs[i_line_index] = (FT_BitmapGlyph)glyph;
p_line->p_glyph_pos[i_line_index] = glyph_pos;
p_line->pi_color[i_line_index] = i_color; /* FIXME alpha per glyph */
p_line->pi_color[i_line_index] = i_color;
p_line->pi_underline_offset[i_line_index] = i_ul_offset;
p_line->pi_underline_thickness[i_line_index] = i_ul_thickness;
......@@ -1971,7 +1971,6 @@ static int ProcessLines( filter_t *p_filter,
/* Terminate and append the line */
if( p_line )
{
p_line->i_alpha = 0x00;
p_line->i_width = line_bbox.xMax - line_bbox.xMin;
*pp_line_next = p_line;
pp_line_next = &p_line->p_next;
......
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