* freetype.c : Put text on the video, using freetype2
*****************************************************************************
* Copyright (C) 2002, 2003 VideoLAN
- * $Id: freetype.c,v 1.3 2003/07/19 15:15:01 sigmunau Exp $
+ * $Id: freetype.c,v 1.4 2003/07/20 16:26:33 sigmunau Exp $
*
* Authors: Sigmund Augdal <sigmunau@idi.ntnu.no>
*
static void Render ( vout_thread_t *, picture_t *,
const subpicture_t * );
+static void RenderI420( vout_thread_t *, picture_t *,
+ const subpicture_t * );
static int AddText ( vout_thread_t *, byte_t *, text_style_t *, int,
int, int, mtime_t, mtime_t );
static int GetUnicodeCharFromUTF8( byte_t ** );
* This function merges the previously rendered freetype glyphs into a picture
*****************************************************************************/
static void Render( vout_thread_t *p_vout, picture_t *p_pic,
+ const subpicture_t *p_subpic )
+{
+ switch( p_vout->output.i_chroma )
+ {
+ /* I420 target, no scaling */
+ case VLC_FOURCC('I','4','2','0'):
+ case VLC_FOURCC('I','Y','U','V'):
+ case VLC_FOURCC('Y','V','1','2'):
+ RenderI420( p_vout, p_pic, p_subpic );
+ break;
+#if 0
+ /* RV16 target, scaling */
+ case VLC_FOURCC('R','V','1','6'):
+ RenderRV16( p_vout, p_pic, p_spu, p_spu->p_sys->b_crop );
+ break;
+
+ /* RV32 target, scaling */
+ case VLC_FOURCC('R','V','2','4'):
+ case VLC_FOURCC('R','V','3','2'):
+ RenderRV32( p_vout, p_pic, p_spu, p_spu->p_sys->b_crop );
+ break;
+
+ /* NVidia overlay, no scaling */
+ case VLC_FOURCC('Y','U','Y','2'):
+ RenderYUY2( p_vout, p_pic, p_spu, p_spu->p_sys->b_crop );
+ break;
+#endif
+ default:
+ msg_Err( p_vout, "unknown chroma, can't render SPU" );
+ break;
+ }
+}
+
+static void RenderI420( vout_thread_t *p_vout, picture_t *p_pic,
const subpicture_t *p_subpic )
{
subpicture_sys_t *p_string = p_subpic->p_sys;
// pixel = (pixel^alpha)^pixel;
pixel = ( ( pixel * ( 255 - alpha ) ) >> 8 ) +
( 255 * alpha >> 8 );
+#undef alpha
+#undef pixel
}
}
}
}
}
+ else
+ {
+ if ( p_string->i_flags & OSD_ALIGN_BOTTOM )
+ {
+ pen_y = p_pic->p[i_plane].i_lines - ( p_string->i_height>>1) -
+ (p_string->i_y_margin>>1);
+ }
+ else
+ {
+ pen_y = p_string->i_y_margin >> 1;
+ }
+ if ( p_string->i_flags & OSD_ALIGN_RIGHT )
+ {
+ pen_x = i_pitch - ( p_string->i_width >> 1 )
+ - ( p_string->i_x_margin >> 1 );
+ }
+ else
+ {
+ pen_x = p_string->i_x_margin >> 1;
+ }
+
+ for( i = 0; p_string->pp_glyphs[i] != NULL; i++ )
+ {
+ if( p_string->pp_glyphs[i] )
+ {
+ FT_BitmapGlyph p_glyph = p_string->pp_glyphs[ i ];
+#define alpha p_vout->p_text_renderer_data->pi_gamma[ p_glyph->bitmap.buffer[ ( x + y * p_glyph->bitmap.width ) ] ]
+#define pixel p_in[ ( (p_string->p_glyph_pos[ i ].y>>1) + pen_y + (y>>1) - ( p_glyph->top >> 1 ) ) * i_pitch + ( x >> 1 ) + pen_x + ( p_string->p_glyph_pos[ i ].x >> 1 ) + ( p_glyph->left >>1) ]
+ for(y = 0; y < p_glyph->bitmap.rows; y+=2 )
+ {
+ for( x = 0; x < p_glyph->bitmap.width; x+=2 )
+ {
+ // pixel = alpha;
+ // pixel = (pixel^alpha)^pixel;
+ pixel = ( ( pixel * ( 0xFF - alpha ) ) >> 8 ) +
+ ( 0x80 * alpha >> 8 );
+#undef alpha
+#undef pixel
+ }
+ }
+ }
+ }
+ }
}
}