/*****************************************************************************
* blend.c: alpha blend 2 pictures together
*****************************************************************************
- * Copyright (C) 2003 the VideoLAN team
+ * Copyright (C) 2003-2007 the VideoLAN team
* $Id$
*
- * Author: Gildas Bazin <gbazin@videolan.org>
+ * Authors: Gildas Bazin <gbazin@videolan.org>
+ * Antoine Cellerier <dionoea @t videolan dot org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <vlc/vlc.h>
-#include <vlc/decoder.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_vout.h>
#include "vlc_filter.h"
/*****************************************************************************
static int OpenFilter ( vlc_object_t * );
static void CloseFilter( vlc_object_t * );
-/* TODO i_alpha support for BlendR16 */
static void Blend( filter_t *, picture_t *, picture_t *, picture_t *,
int, int, int );
+
+/* TODO i_alpha support for BlendR16 */
+/* YUVA */
static void BlendI420( filter_t *, picture_t *, picture_t *, picture_t *,
int, int, int, int, int );
static void BlendR16( filter_t *, picture_t *, picture_t *, picture_t *,
int, int, int, int, int );
static void BlendYUVPacked( filter_t *, picture_t *, picture_t *, picture_t *,
int, int, int, int, int );
+
+/* I420, YV12 */
+static void BlendI420I420( filter_t *, picture_t *, picture_t *, picture_t *,
+ int, int, int, int, int );
+static void BlendI420I420_no_alpha(
+ filter_t *, picture_t *, picture_t *, picture_t *,
+ int, int, int, int );
+static void BlendI420R16( filter_t *, picture_t *, picture_t *, picture_t *,
+ int, int, int, int, int );
+static void BlendI420R24( filter_t *, picture_t *, picture_t *, picture_t *,
+ int, int, int, int, int );
+static void BlendI420YUVPacked( filter_t *, picture_t *, picture_t *,
+ picture_t *, int, int, int, int, int );
+
+/* YUVP */
static void BlendPalI420( filter_t *, picture_t *, picture_t *, picture_t *,
int, int, int, int, int );
static void BlendPalYUVPacked( filter_t *, picture_t *, picture_t *, picture_t *,
static void BlendPalRV( filter_t *, picture_t *, picture_t *, picture_t *,
int, int, int, int, int );
+/* RGBA */
+static void BlendRGBAI420( filter_t *, picture_t *, picture_t *, picture_t *,
+ int, int, int, int, int );
+static void BlendRGBAYUVPacked( filter_t *, picture_t *, picture_t *,
+ picture_t *, int, int, int, int, int );
+static void BlendRGBAR16( filter_t *, picture_t *, picture_t *, picture_t *,
+ int, int, int, int, int );
+static void BlendRGBAR24( filter_t *, picture_t *, picture_t *, picture_t *,
+ int, int, int, int, int );
+
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin();
- set_description( _("Video pictures blending") );
+ set_description( N_("Video pictures blending") );
set_capability( "video blending", 100 );
set_callbacks( OpenFilter, CloseFilter );
vlc_module_end();
/* Check if we can handle that format.
* We could try to use a chroma filter if we can't. */
- if( ( p_filter->fmt_in.video.i_chroma != VLC_FOURCC('Y','U','V','A') &&
- p_filter->fmt_in.video.i_chroma != VLC_FOURCC('Y','U','V','P') ) ||
- ( p_filter->fmt_out.video.i_chroma != VLC_FOURCC('I','4','2','0') &&
- p_filter->fmt_out.video.i_chroma != VLC_FOURCC('Y','U','Y','2') &&
- p_filter->fmt_out.video.i_chroma != VLC_FOURCC('Y','V','1','2') &&
- p_filter->fmt_out.video.i_chroma != VLC_FOURCC('U','Y','V','Y') &&
- p_filter->fmt_out.video.i_chroma != VLC_FOURCC('R','V','1','6') &&
- p_filter->fmt_out.video.i_chroma != VLC_FOURCC('R','V','2','4') &&
- p_filter->fmt_out.video.i_chroma != VLC_FOURCC('R','V','3','2') ) )
+ int in_chroma = p_filter->fmt_in.video.i_chroma;
+ int out_chroma = p_filter->fmt_out.video.i_chroma;
+ if( ( in_chroma != VLC_FOURCC('Y','U','V','A') &&
+ in_chroma != VLC_FOURCC('I','4','2','0') &&
+ in_chroma != VLC_FOURCC('Y','V','1','2') &&
+ in_chroma != VLC_FOURCC('Y','U','V','P') &&
+ in_chroma != VLC_FOURCC('R','G','B','A') ) ||
+ ( out_chroma != VLC_FOURCC('I','4','2','0') &&
+ out_chroma != VLC_FOURCC('Y','U','Y','2') &&
+ out_chroma != VLC_FOURCC('Y','V','1','2') &&
+ out_chroma != VLC_FOURCC('U','Y','V','Y') &&
+ out_chroma != VLC_FOURCC('Y','V','Y','U') &&
+ out_chroma != VLC_FOURCC('R','V','1','6') &&
+ out_chroma != VLC_FOURCC('R','V','2','4') &&
+ out_chroma != VLC_FOURCC('R','V','3','2') ) )
{
return VLC_EGENERIC;
}
/* Allocate the memory needed to store the decoder's structure */
if( ( p_filter->p_sys = p_sys =
(filter_sys_t *)malloc(sizeof(filter_sys_t)) ) == NULL )
- {
- msg_Err( p_filter, "out of memory" );
- return VLC_EGENERIC;
- }
+ return VLC_ENOMEM;
/* Misc init */
p_filter->pf_video_blend = Blend;
(char *)&p_filter->fmt_in.video.i_chroma,
(char *)&p_filter->fmt_out.video.i_chroma );
-
return VLC_SUCCESS;
}
+/*****************************************************************************
+ * CloseFilter: clean up the filter
+ *****************************************************************************/
+static void CloseFilter( vlc_object_t *p_this )
+{
+ filter_t *p_filter = (filter_t*)p_this;
+ filter_sys_t *p_sys = p_filter->p_sys;
+
+ free( p_sys );
+}
+
/****************************************************************************
* Blend: the whole thing
****************************************************************************
{
int i_width, i_height;
+ if( i_alpha == 0 ) return;
+
i_width = __MIN((int)p_filter->fmt_out.video.i_visible_width - i_x_offset,
(int)p_filter->fmt_in.video.i_visible_width);
if( i_width <= 0 || i_height <= 0 ) return;
- if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','U','V','A') &&
- ( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('I','4','2','0') ||
- p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','V','1','2') ) )
- {
- BlendI420( p_filter, p_dst, p_dst_orig, p_src,
- i_x_offset, i_y_offset, i_width, i_height, i_alpha );
- return;
- }
- if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','U','V','A') &&
- ( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','U','Y','2') ||
- p_filter->fmt_out.video.i_chroma == VLC_FOURCC('U','Y','V','Y') ) )
- {
- BlendYUVPacked( p_filter, p_dst, p_dst_orig, p_src,
- i_x_offset, i_y_offset, i_width, i_height, i_alpha );
- return;
- }
- if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','U','V','A') &&
- p_filter->fmt_out.video.i_chroma == VLC_FOURCC('R','V','1','6') )
- {
- BlendR16( p_filter, p_dst, p_dst_orig, p_src,
- i_x_offset, i_y_offset, i_width, i_height, i_alpha );
- return;
- }
- if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','U','V','A') &&
- ( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('R','V','2','4') ||
- p_filter->fmt_out.video.i_chroma == VLC_FOURCC('R','V','3','2') ) )
- {
- BlendR24( p_filter, p_dst, p_dst_orig, p_src,
- i_x_offset, i_y_offset, i_width, i_height, i_alpha );
- return;
- }
- if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','U','V','P') &&
- ( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('I','4','2','0') ||
- p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','V','1','2') ) )
- {
- BlendPalI420( p_filter, p_dst, p_dst_orig, p_src,
- i_x_offset, i_y_offset, i_width, i_height, i_alpha );
- return;
- }
- if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','U','V','P') &&
- ( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','U','Y','2') ||
- p_filter->fmt_out.video.i_chroma == VLC_FOURCC('U','Y','V','Y') ) )
- {
- BlendPalYUVPacked( p_filter, p_dst, p_dst_orig, p_src,
- i_x_offset, i_y_offset, i_width, i_height, i_alpha );
- return;
- }
- if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','U','V','P') &&
- ( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('R','V','1','6') ||
- p_filter->fmt_out.video.i_chroma == VLC_FOURCC('R','V','2','4') ||
- p_filter->fmt_out.video.i_chroma == VLC_FOURCC('R','V','3','2') ) )
+#if 0
+ msg_Dbg( p_filter, "chroma: %4.4s -> %4.4s\n",
+ (char *)&p_filter->fmt_in.video.i_chroma,
+ (char *)&p_filter->fmt_out.video.i_chroma );
+#endif
+
+ switch( p_filter->fmt_in.video.i_chroma )
{
- BlendPalRV( p_filter, p_dst, p_dst_orig, p_src,
- i_x_offset, i_y_offset, i_width, i_height, i_alpha );
- return;
+ case VLC_FOURCC('Y','U','V','A'):
+ switch( p_filter->fmt_out.video.i_chroma )
+ {
+ case VLC_FOURCC('I','4','2','0'):
+ case VLC_FOURCC('Y','V','1','2'):
+ BlendI420( p_filter, p_dst, p_dst_orig, p_src,
+ i_x_offset, i_y_offset,
+ i_width, i_height, i_alpha );
+ return;
+ case VLC_FOURCC('Y','U','Y','2'):
+ case VLC_FOURCC('U','Y','V','Y'):
+ case VLC_FOURCC('Y','V','Y','U'):
+ BlendYUVPacked( p_filter, p_dst, p_dst_orig, p_src,
+ i_x_offset, i_y_offset,
+ i_width, i_height, i_alpha );
+ return;
+ case VLC_FOURCC('R','V','1','6'):
+ BlendR16( p_filter, p_dst, p_dst_orig, p_src,
+ i_x_offset, i_y_offset,
+ i_width, i_height, i_alpha );
+ return;
+ case VLC_FOURCC('R','V','2','4'):
+ case VLC_FOURCC('R','V','3','2'):
+ BlendR24( p_filter, p_dst, p_dst_orig, p_src,
+ i_x_offset, i_y_offset,
+ i_width, i_height, i_alpha );
+ return;
+ }
+ case VLC_FOURCC('Y','U','V','P'):
+ switch( p_filter->fmt_out.video.i_chroma )
+ {
+ case VLC_FOURCC('I','4','2','0'):
+ case VLC_FOURCC('Y','V','1','2'):
+ BlendPalI420( p_filter, p_dst, p_dst_orig, p_src,
+ i_x_offset, i_y_offset,
+ i_width, i_height, i_alpha );
+ return;
+ case VLC_FOURCC('Y','U','Y','2'):
+ case VLC_FOURCC('U','Y','V','Y'):
+ case VLC_FOURCC('Y','V','Y','U'):
+ BlendPalYUVPacked( p_filter, p_dst, p_dst_orig, p_src,
+ i_x_offset, i_y_offset,
+ i_width, i_height, i_alpha );
+ return;
+ case VLC_FOURCC('R','V','1','6'):
+ case VLC_FOURCC('R','V','2','4'):
+ case VLC_FOURCC('R','V','3','2'):
+ BlendPalRV( p_filter, p_dst, p_dst_orig, p_src,
+ i_x_offset, i_y_offset,
+ i_width, i_height, i_alpha );
+ return;
+ }
+ case VLC_FOURCC('Y','V','1','2'):
+ case VLC_FOURCC('I','4','2','0'):
+ switch( p_filter->fmt_out.video.i_chroma )
+ {
+ case VLC_FOURCC('I','4','2','0'):
+ case VLC_FOURCC('Y','V','1','2'):
+ if( i_alpha == 0xff )
+ BlendI420I420_no_alpha(
+ p_filter, p_dst, p_dst_orig, p_src,
+ i_x_offset, i_y_offset,
+ i_width, i_height );
+ else
+ BlendI420I420( p_filter, p_dst, p_dst_orig, p_src,
+ i_x_offset, i_y_offset,
+ i_width, i_height, i_alpha );
+ return;
+ case VLC_FOURCC('Y','U','Y','2'):
+ case VLC_FOURCC('U','Y','V','Y'):
+ case VLC_FOURCC('Y','V','Y','U'):
+ BlendI420YUVPacked( p_filter, p_dst, p_dst_orig, p_src,
+ i_x_offset, i_y_offset,
+ i_width, i_height, i_alpha );
+ return;
+ case VLC_FOURCC('R','V','1','6'):
+ BlendI420R16( p_filter, p_dst, p_dst_orig, p_src,
+ i_x_offset, i_y_offset,
+ i_width, i_height, i_alpha );
+ return;
+ case VLC_FOURCC('R','V','2','4'):
+ case VLC_FOURCC('R','V','3','2'):
+ BlendI420R24( p_filter, p_dst, p_dst_orig, p_src,
+ i_x_offset, i_y_offset,
+ i_width, i_height, i_alpha );
+ return;
+ }
+ case VLC_FOURCC('R','G','B','A'):
+ switch( p_filter->fmt_out.video.i_chroma )
+ {
+ case VLC_FOURCC('I','4','2','0'):
+ case VLC_FOURCC('Y','V','1','2'):
+ BlendRGBAI420( p_filter, p_dst, p_dst_orig, p_src,
+ i_x_offset, i_y_offset,
+ i_width, i_height, i_alpha );
+ return;
+ case VLC_FOURCC('Y','U','Y','2'):
+ case VLC_FOURCC('U','Y','V','Y'):
+ case VLC_FOURCC('Y','V','Y','U'):
+ BlendRGBAYUVPacked( p_filter, p_dst, p_dst_orig, p_src,
+ i_x_offset, i_y_offset,
+ i_width, i_height, i_alpha );
+ return;
+ case VLC_FOURCC('R','V','2','4'):
+ case VLC_FOURCC('R','V','3','2'):
+ BlendRGBAR24( p_filter, p_dst, p_dst_orig, p_src,
+ i_x_offset, i_y_offset,
+ i_width, i_height, i_alpha );
+ return;
+ case VLC_FOURCC('R','V','1','6'):
+ BlendRGBAR16( p_filter, p_dst, p_dst_orig, p_src,
+ i_x_offset, i_y_offset,
+ i_width, i_height, i_alpha );
+ return;
+ }
}
- msg_Dbg( p_filter, "no matching alpha blending routine" );
+ msg_Dbg( p_filter, "no matching alpha blending routine "
+ "(chroma: %4.4s -> %4.4s)",
+ (char *)&p_filter->fmt_in.video.i_chroma,
+ (char *)&p_filter->fmt_out.video.i_chroma );
+}
+
+/***********************************************************************
+ * Utils
+ ***********************************************************************/
+static inline uint8_t vlc_uint8( int v )
+{
+ if( v > 255 )
+ return 255;
+ else if( v < 0 )
+ return 0;
+ return v;
+}
+
+static inline void yuv_to_rgb( int *r, int *g, int *b,
+ uint8_t y1, uint8_t u1, uint8_t v1 )
+{
+ /* macros used for YUV pixel conversions */
+# define SCALEBITS 10
+# define ONE_HALF (1 << (SCALEBITS - 1))
+# define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
+
+ int y, cb, cr, r_add, g_add, b_add;
+
+ cb = u1 - 128;
+ cr = v1 - 128;
+ r_add = FIX(1.40200*255.0/224.0) * cr + ONE_HALF;
+ g_add = - FIX(0.34414*255.0/224.0) * cb
+ - FIX(0.71414*255.0/224.0) * cr + ONE_HALF;
+ b_add = FIX(1.77200*255.0/224.0) * cb + ONE_HALF;
+ y = (y1 - 16) * FIX(255.0/219.0);
+ *r = vlc_uint8( (y + r_add) >> SCALEBITS );
+ *g = vlc_uint8( (y + g_add) >> SCALEBITS );
+ *b = vlc_uint8( (y + b_add) >> SCALEBITS );
+#undef FIX
+#undef ONE_HALF
+#undef SCALEBITS
+}
+
+static inline void rgb_to_yuv( uint8_t *y, uint8_t *u, uint8_t *v,
+ int r, int g, int b )
+{
+ *y = ( ( ( 66 * r + 129 * g + 25 * b + 128 ) >> 8 ) + 16 );
+ *u = ( ( -38 * r - 74 * g + 112 * b + 128 ) >> 8 ) + 128 ;
+ *v = ( ( 112 * r - 94 * g - 18 * b + 128 ) >> 8 ) + 128 ;
}
+/***********************************************************************
+ * YUVA
+ ***********************************************************************/
static void BlendI420( filter_t *p_filter, picture_t *p_dst,
picture_t *p_dst_orig, picture_t *p_src,
int i_x_offset, int i_y_offset,
uint8_t *p_src1_u, *p_src2_u, *p_dst_u;
uint8_t *p_src1_v, *p_src2_v, *p_dst_v;
uint8_t *p_trans;
- int i_x, i_y, i_trans;
- vlc_bool_t b_even_scanline = i_y_offset % 2;
+ int i_x, i_y, i_trans = 0;
+ bool b_even_scanline = i_y_offset % 2;
i_dst_pitch = p_dst->p[Y_PLANE].i_pitch;
p_dst_y = p_dst->p[Y_PLANE].p_pixels + i_x_offset +
/* Draw until we reach the end of the line */
for( i_x = 0; i_x < i_width; i_x++ )
{
- i_trans = ( p_trans[i_x] * i_alpha ) / 255;
+ if( p_trans )
+ i_trans = ( p_trans[i_x] * i_alpha ) / 255;
if( !i_trans )
{
/* Completely transparent. Don't change pixel */
return;
}
-static inline void yuv_to_rgb( int *r, int *g, int *b,
- uint8_t y1, uint8_t u1, uint8_t v1 )
-{
- /* macros used for YUV pixel conversions */
-# define SCALEBITS 10
-# define ONE_HALF (1 << (SCALEBITS - 1))
-# define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
-# define CLAMP( x ) (((x) > 255) ? 255 : ((x) < 0) ? 0 : (x));
-
- int y, cb, cr, r_add, g_add, b_add;
-
- cb = u1 - 128;
- cr = v1 - 128;
- r_add = FIX(1.40200*255.0/224.0) * cr + ONE_HALF;
- g_add = - FIX(0.34414*255.0/224.0) * cb
- - FIX(0.71414*255.0/224.0) * cr + ONE_HALF;
- b_add = FIX(1.77200*255.0/224.0) * cb + ONE_HALF;
- y = (y1 - 16) * FIX(255.0/219.0);
- *r = CLAMP((y + r_add) >> SCALEBITS);
- *g = CLAMP((y + g_add) >> SCALEBITS);
- *b = CLAMP((y + b_add) >> SCALEBITS);
-}
-
static void BlendR16( filter_t *p_filter, picture_t *p_dst_pic,
picture_t *p_dst_orig, picture_t *p_src,
int i_x_offset, int i_y_offset,
uint8_t *p_dst, *p_src1, *p_src2_y;
uint8_t *p_src2_u, *p_src2_v;
uint8_t *p_trans;
- int i_x, i_y, i_pix_pitch;
+ int i_x, i_y, i_pix_pitch, i_trans = 0;
int r, g, b;
i_pix_pitch = p_dst_pic->p->i_pixel_pitch;
/* Draw until we reach the end of the line */
for( i_x = 0; i_x < i_width; i_x++ )
{
- if( !p_trans[i_x] )
+ if( p_trans )
+ i_trans = ( p_trans[i_x] * i_alpha ) / 255;
+ if( !i_trans )
{
/* Completely transparent. Don't change pixel */
continue;
}
- else if( p_trans[i_x] == MAX_TRANS )
+ else if( i_trans == MAX_TRANS )
{
/* Completely opaque. Completely overwrite underlying pixel */
yuv_to_rgb( &r, &g, &b,
}
/* Blending */
+ /* FIXME: do the blending */
yuv_to_rgb( &r, &g, &b,
p_src2_y[i_x], p_src2_u[i_x], p_src2_v[i_x] );
uint8_t *p_dst, *p_src1, *p_src2_y;
uint8_t *p_src2_u, *p_src2_v;
uint8_t *p_trans;
- int i_x, i_y, i_pix_pitch, i_trans;
+ int i_x, i_y, i_pix_pitch, i_trans = 0;
int r, g, b;
i_pix_pitch = p_dst_pic->p->i_pixel_pitch;
p_dst_pic->p->i_pitch *
( i_y_offset + p_filter->fmt_out.video.i_y_offset );
- i_src1_pitch = p_dst_orig->p[Y_PLANE].i_pitch;
+ i_src1_pitch = p_dst_orig->p->i_pitch;
p_src1 = p_dst_orig->p->p_pixels + i_x_offset * i_pix_pitch +
p_filter->fmt_out.video.i_x_offset * i_pix_pitch +
p_dst_orig->p->i_pitch *
#define MAX_TRANS 255
#define TRANS_BITS 8
- /* Draw until we reach the bottom of the subtitle */
- for( i_y = 0; i_y < i_height; i_y++, p_trans += i_src2_pitch,
- p_dst += i_dst_pitch, p_src1 += i_src1_pitch,
- p_src2_y += i_src2_pitch, p_src2_u += i_src2_pitch,
- p_src2_v += i_src2_pitch )
+ if( (i_pix_pitch == 4)
+ && (((((intptr_t)p_dst)|((intptr_t)p_src1)|i_dst_pitch|i_src1_pitch)
+ & 3) == 0) )
{
- /* Draw until we reach the end of the line */
- for( i_x = 0; i_x < i_width; i_x++ )
+ /*
+ ** if picture pixels are 32 bits long and lines addresses are 32 bit
+ ** aligned, optimize rendering
+ */
+ uint32_t *p32_dst = (uint32_t *)p_dst;
+ uint32_t i32_dst_pitch = (uint32_t)(i_dst_pitch>>2);
+ uint32_t *p32_src1 = (uint32_t *)p_src1;
+ uint32_t i32_src1_pitch = (uint32_t)(i_src1_pitch>>2);
+
+ int i_rshift, i_gshift, i_bshift;
+ uint32_t i_rmask, i_gmask, i_bmask;
+
+ if( p_dst_pic->p_heap )
{
- i_trans = ( p_trans[i_x] * i_alpha ) / 255;
- if( !i_trans )
+ i_rmask = p_dst_pic->p_heap->i_rmask;
+ i_gmask = p_dst_pic->p_heap->i_gmask;
+ i_bmask = p_dst_pic->p_heap->i_bmask;
+ i_rshift = p_dst_pic->p_heap->i_lrshift;
+ i_gshift = p_dst_pic->p_heap->i_lgshift;
+ i_bshift = p_dst_pic->p_heap->i_lbshift;
+ }
+ else
+ {
+ i_rmask = p_dst_pic->format.i_rmask;
+ i_gmask = p_dst_pic->format.i_gmask;
+ i_bmask = p_dst_pic->format.i_bmask;
+
+ if( (i_rmask == 0x00FF0000)
+ && (i_gmask == 0x0000FF00)
+ && (i_bmask == 0x000000FF) )
{
- /* Completely transparent. Don't change pixel */
- continue;
+ /* X8R8G8B8 pixel layout */
+ i_rshift = 16;
+ i_bshift = 8;
+ i_gshift = 0;
}
- else if( i_trans == MAX_TRANS )
+ else if( (i_rmask == 0xFF000000)
+ && (i_gmask == 0x00FF0000)
+ && (i_bmask == 0x0000FF00) )
{
- /* Completely opaque. Completely overwrite underlying pixel */
- yuv_to_rgb( &r, &g, &b,
- p_src2_y[i_x], p_src2_u[i_x], p_src2_v[i_x] );
-
- p_dst[i_x * i_pix_pitch] = r;
- p_dst[i_x * i_pix_pitch + 1] = g;
- p_dst[i_x * i_pix_pitch + 2] = b;
- continue;
+ /* R8G8B8X8 pixel layout */
+ i_rshift = 24;
+ i_bshift = 16;
+ i_gshift = 8;
}
+ else
+ {
+ goto slower;
+ }
+ }
+ /* Draw until we reach the bottom of the subtitle */
+ for( i_y = 0; i_y < i_height; i_y++, p_trans += i_src2_pitch,
+ p32_dst += i32_dst_pitch, p32_src1 += i32_src1_pitch,
+ p_src2_y += i_src2_pitch, p_src2_u += i_src2_pitch,
+ p_src2_v += i_src2_pitch )
+ {
+ /* Draw until we reach the end of the line */
+ for( i_x = 0; i_x < i_width; i_x++ )
+ {
+ if( p_trans )
+ i_trans = ( p_trans[i_x] * i_alpha ) / 255;
+ if( !i_trans )
+ {
+ /* Completely transparent. Don't change pixel */
+ continue;
+ }
+ else if( i_trans == MAX_TRANS )
+ {
+ /* Completely opaque. Completely overwrite underlying pixel */
+ yuv_to_rgb( &r, &g, &b,
+ p_src2_y[i_x], p_src2_u[i_x], p_src2_v[i_x] );
- /* Blending */
- yuv_to_rgb( &r, &g, &b,
- p_src2_y[i_x], p_src2_u[i_x], p_src2_v[i_x] );
-
- p_dst[i_x * i_pix_pitch] = ( r * i_trans +
- (uint16_t)p_src1[i_x * i_pix_pitch] *
- (MAX_TRANS - i_trans) ) >> TRANS_BITS;
- p_dst[i_x * i_pix_pitch + 1] = ( g * i_trans +
- (uint16_t)p_src1[i_x * i_pix_pitch + 1] *
- (MAX_TRANS - i_trans) ) >> TRANS_BITS;
- p_dst[i_x * i_pix_pitch + 2] = ( b * i_trans +
- (uint16_t)p_src1[i_x * i_pix_pitch + 2] *
- (MAX_TRANS - i_trans) ) >> TRANS_BITS;
+ p32_dst[i_x] = (r<<i_rshift)
+ + (g<<i_gshift)
+ + (b<<i_bshift);
+ }
+ else
+ {
+ /* Blending */
+ uint32_t i_pix_src1 = p32_src1[i_x];
+ yuv_to_rgb( &r, &g, &b,
+ p_src2_y[i_x], p_src2_u[i_x], p_src2_v[i_x] );
+
+ p32_dst[i_x] = ( ( r * i_trans +
+ (uint16_t)((i_pix_src1 & i_rmask)>>i_rshift) *
+ (MAX_TRANS - i_trans) ) >> TRANS_BITS) << i_rshift
+ | ( ( g * i_trans +
+ (uint16_t)((i_pix_src1 & i_gmask)>>i_gshift) *
+ (MAX_TRANS - i_trans) ) >> TRANS_BITS) << i_gshift
+ | ( ( b * i_trans +
+ (uint16_t)((i_pix_src1 & i_bmask)>>i_bshift) *
+ (MAX_TRANS - i_trans) ) >> TRANS_BITS) << i_bshift;
+ }
+ }
+ }
+ }
+ else
+ {
+ int i_rindex, i_bindex, i_gindex;
+ uint32_t i_rmask, i_gmask, i_bmask;
+
+ slower:
+
+ i_rmask = p_dst_pic->format.i_rmask;
+ i_gmask = p_dst_pic->format.i_gmask;
+ i_bmask = p_dst_pic->format.i_bmask;
+
+ /*
+ ** quick and dirty way to get byte index from mask
+ ** will only work correctly if mask are 8 bit aligned
+ ** and are 8 bit long
+ */
+#ifdef WORDS_BIGENDIAN
+ i_rindex = ((i_rmask>>16) & 1)
+ | ((i_rmask>>8) & 2)
+ | ((i_rmask) & 3);
+ i_gindex = ((i_gmask>>16) & 1)
+ | ((i_gmask>>8) & 2)
+ | ((i_gmask) & 3);
+ i_bindex = ((i_bmask>>16) & 1)
+ | ((i_bmask>>8) & 2)
+ | ((i_bmask) & 3);
+#else
+ i_rindex = ((i_rmask>>24) & 3)
+ | ((i_rmask>>16) & 2)
+ | ((i_rmask>>8) & 1);
+ i_gindex = ((i_gmask>>24) & 3)
+ | ((i_gmask>>16) & 2)
+ | ((i_gmask>>8) & 1);
+ i_bindex = ((i_bmask>>24) & 3)
+ | ((i_bmask>>16) & 2)
+ | ((i_bmask>>8) & 1);
+#endif
+
+ /* Draw until we reach the bottom of the subtitle */
+ for( i_y = 0; i_y < i_height; i_y++, p_trans += i_src2_pitch,
+ p_dst += i_dst_pitch, p_src1 += i_src1_pitch,
+ p_src2_y += i_src2_pitch, p_src2_u += i_src2_pitch,
+ p_src2_v += i_src2_pitch )
+ {
+ /* Draw until we reach the end of the line */
+ for( i_x = 0; i_x < i_width; i_x++ )
+ {
+ if( p_trans )
+ i_trans = ( p_trans[i_x] * i_alpha ) / 255;
+ if( !i_trans )
+ {
+ /* Completely transparent. Don't change pixel */
+ continue;
+ }
+ else
+ {
+ int i_pos = i_x * i_pix_pitch;
+ if( i_trans == MAX_TRANS )
+ {
+
+ /* Completely opaque. Completely overwrite underlying pixel */
+ yuv_to_rgb( &r, &g, &b,
+ p_src2_y[i_x], p_src2_u[i_x], p_src2_v[i_x] );
+
+ p_dst[i_pos + i_rindex ] = r;
+ p_dst[i_pos + i_gindex ] = g;
+ p_dst[i_pos + i_bindex ] = b;
+ }
+ else
+ {
+ int i_rpos = i_pos + i_rindex;
+ int i_gpos = i_pos + i_gindex;
+ int i_bpos = i_pos + i_bindex;
+
+ /* Blending */
+ yuv_to_rgb( &r, &g, &b,
+ p_src2_y[i_x], p_src2_u[i_x], p_src2_v[i_x] );
+
+ p_dst[i_rpos] = ( r * i_trans +
+ (uint16_t)p_src1[i_rpos] *
+ (MAX_TRANS - i_trans) ) >> TRANS_BITS;
+ p_dst[i_gpos] = ( r * i_trans +
+ (uint16_t)p_src1[i_gpos] *
+ (MAX_TRANS - i_trans) ) >> TRANS_BITS;
+ p_dst[i_bpos] = ( r * i_trans +
+ (uint16_t)p_src1[i_gpos] *
+ (MAX_TRANS - i_trans) ) >> TRANS_BITS;
+ }
+ }
+ }
}
}
uint8_t *p_dst, *p_src1, *p_src2_y;
uint8_t *p_src2_u, *p_src2_v;
uint8_t *p_trans;
- int i_x, i_y, i_pix_pitch, i_trans;
- vlc_bool_t b_even = !((i_x_offset + p_filter->fmt_out.video.i_x_offset)%2);
- int i_u_offset, i_v_offset;
+ int i_x, i_y, i_pix_pitch, i_trans = 0;
+ bool b_even = !((i_x_offset + p_filter->fmt_out.video.i_x_offset)%2);
+ int i_l_offset = 0, i_u_offset = 0, i_v_offset = 0;
if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','U','Y','2') )
{
+ i_l_offset = 0;
i_u_offset = 1;
i_v_offset = 3;
}
else if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('U','Y','V','Y') )
{
+ i_l_offset = 1;
i_u_offset = 0;
i_v_offset = 2;
}
+ else if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','V','Y','U') )
+ {
+ i_l_offset = 0;
+ i_u_offset = 3;
+ i_v_offset = 1;
+ }
i_pix_pitch = 2;
i_dst_pitch = p_dst_pic->p->i_pitch;
else if( i_trans == MAX_TRANS )
{
/* Completely opaque. Completely overwrite underlying pixel */
- p_dst[i_x * 2] = p_src2_y[i_x];
+ p_dst[i_x * 2 + i_l_offset] = p_src2_y[i_x];
if( b_even )
{
- p_dst[i_x * 2 + i_u_offset] = p_src2_u[i_x];
- p_dst[i_x * 2 + i_v_offset] = p_src2_v[i_x];
+ if( p_trans[i_x+1] > 0xaa )
+ {
+ p_dst[i_x * 2 + i_u_offset] = (p_src2_u[i_x]+p_src2_u[i_x+1])>>1;
+ p_dst[i_x * 2 + i_v_offset] = (p_src2_v[i_x]+p_src2_v[i_x+1])>>1;
+ }
+ else
+ {
+ p_dst[i_x * 2 + i_u_offset] = p_src2_u[i_x];
+ p_dst[i_x * 2 + i_v_offset] = p_src2_v[i_x];
+ }
}
}
else
{
/* Blending */
- p_dst[i_x * 2] = ( (uint16_t)p_src2_y[i_x] * i_trans +
- (uint16_t)p_src1[i_x * 2] * (MAX_TRANS - i_trans) )
+ p_dst[i_x * 2 + i_l_offset] = ( (uint16_t)p_src2_y[i_x] * i_trans +
+ (uint16_t)p_src1[i_x * 2 + i_l_offset] * (MAX_TRANS - i_trans) )
>> TRANS_BITS;
if( b_even )
{
- p_dst[i_x * 2 + i_u_offset] = ( (uint16_t)p_src2_u[i_x] * i_trans +
+ uint16_t i_u = 0;
+ uint16_t i_v = 0;
+ if( p_trans[i_x+1] > 0xaa )
+ {
+ i_u = (p_src2_u[i_x]+p_src2_u[i_x+1])>>1;
+ i_v = (p_src2_v[i_x]+p_src2_v[i_x+1])>>1;
+ }
+ else
+ {
+ i_u = p_src2_u[i_x];
+ i_v = p_src2_v[i_x];
+ }
+ p_dst[i_x * 2 + i_u_offset] = ( (uint16_t)i_u * i_trans +
(uint16_t)p_src1[i_x * 2 + i_u_offset] * (MAX_TRANS - i_trans) )
>> TRANS_BITS;
- p_dst[i_x * 2 + i_v_offset] = ( (uint16_t)p_src2_v[i_x] * i_trans +
+ p_dst[i_x * 2 + i_v_offset] = ( (uint16_t)i_v * i_trans +
(uint16_t)p_src1[i_x * 2 + i_v_offset] * (MAX_TRANS - i_trans) )
>> TRANS_BITS;
}
return;
}
-
-static void BlendPalI420( filter_t *p_filter, picture_t *p_dst,
- picture_t *p_dst_orig, picture_t *p_src,
- int i_x_offset, int i_y_offset,
- int i_width, int i_height, int i_alpha )
+/***********************************************************************
+ * I420, YV12
+ ***********************************************************************/
+static void BlendI420I420( filter_t *p_filter, picture_t *p_dst,
+ picture_t *p_dst_orig, picture_t *p_src,
+ int i_x_offset, int i_y_offset,
+ int i_width, int i_height, int i_alpha )
{
int i_src1_pitch, i_src2_pitch, i_dst_pitch;
- uint8_t *p_src1_y, *p_src2, *p_dst_y;
- uint8_t *p_src1_u, *p_dst_u;
- uint8_t *p_src1_v, *p_dst_v;
- int i_x, i_y, i_trans;
- vlc_bool_t b_even_scanline = i_y_offset % 2;
+ uint8_t *p_src1_y, *p_src2_y, *p_dst_y;
+ uint8_t *p_src1_u, *p_src2_u, *p_dst_u;
+ uint8_t *p_src1_v, *p_src2_v, *p_dst_v;
+ int i_x, i_y;
+ bool b_even_scanline = i_y_offset % 2;
i_dst_pitch = p_dst->p[Y_PLANE].i_pitch;
p_dst_y = p_dst->p[Y_PLANE].p_pixels + i_x_offset +
( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 *
p_dst_orig->p[V_PLANE].i_pitch;
- i_src2_pitch = p_src->p->i_pitch;
- p_src2 = p_src->p->p_pixels + p_filter->fmt_in.video.i_x_offset +
- i_src2_pitch * p_filter->fmt_in.video.i_y_offset;
+ i_src2_pitch = p_src->p[Y_PLANE].i_pitch;
+ p_src2_y = p_src->p[Y_PLANE].p_pixels +
+ p_filter->fmt_in.video.i_x_offset +
+ p_src->p[Y_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset;
+ p_src2_u = p_src->p[U_PLANE].p_pixels +
+ p_filter->fmt_in.video.i_x_offset/2 +
+ p_src->p[U_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2;
+ p_src2_v = p_src->p[V_PLANE].p_pixels +
+ p_filter->fmt_in.video.i_x_offset/2 +
+ p_src->p[V_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2;
#define MAX_TRANS 255
#define TRANS_BITS 8
-#define p_trans p_src2
-#define p_pal p_filter->fmt_in.video.p_palette->palette
/* Draw until we reach the bottom of the subtitle */
for( i_y = 0; i_y < i_height; i_y++,
p_dst_y += i_dst_pitch, p_src1_y += i_src1_pitch,
- p_src2 += i_src2_pitch,
- p_dst_u += b_even_scanline ? i_dst_pitch/2 : 0,
- p_src1_u += b_even_scanline ? i_src1_pitch/2 : 0,
- p_dst_v += b_even_scanline ? i_dst_pitch/2 : 0,
- p_src1_v += b_even_scanline ? i_src1_pitch/2 : 0 )
+ p_src2_y += i_src2_pitch )
{
+ if( b_even_scanline )
+ {
+ p_dst_u += i_dst_pitch/2;
+ p_dst_v += i_dst_pitch/2;
+ p_src1_u += i_src1_pitch/2;
+ p_src1_v += i_src1_pitch/2;
+ }
b_even_scanline = !b_even_scanline;
/* Draw until we reach the end of the line */
for( i_x = 0; i_x < i_width; i_x++ )
{
- i_trans = ( p_pal[p_trans[i_x]][3] * i_alpha ) / 255;
- if( !i_trans )
- {
- /* Completely transparent. Don't change pixel */
- continue;
- }
- else if( i_trans == MAX_TRANS )
+ if( i_alpha == MAX_TRANS )
{
/* Completely opaque. Completely overwrite underlying pixel */
- p_dst_y[i_x] = p_pal[p_src2[i_x]][0];
+ p_dst_y[i_x] = p_src2_y[i_x];
if( b_even_scanline && i_x % 2 == 0 )
{
- p_dst_u[i_x/2] = p_pal[p_src2[i_x]][1];
- p_dst_v[i_x/2] = p_pal[p_src2[i_x]][2];
+ p_dst_u[i_x/2] = p_src2_u[i_x/2];
+ p_dst_v[i_x/2] = p_src2_v[i_x/2];
}
continue;
}
/* Blending */
- p_dst_y[i_x] = ( (uint16_t)p_pal[p_src2[i_x]][0] * i_trans +
- (uint16_t)p_src1_y[i_x] * (MAX_TRANS - i_trans) )
+ p_dst_y[i_x] = ( (uint16_t)p_src2_y[i_x] * i_alpha +
+ (uint16_t)p_src1_y[i_x] * (MAX_TRANS - i_alpha) )
>> TRANS_BITS;
if( b_even_scanline && i_x % 2 == 0 )
{
- p_dst_u[i_x/2] = ( (uint16_t)p_pal[p_src2[i_x]][1] * i_trans +
- (uint16_t)p_src1_u[i_x/2] * (MAX_TRANS - i_trans) )
- >> TRANS_BITS;
- p_dst_v[i_x/2] = ( (uint16_t)p_pal[p_src2[i_x]][2] * i_trans +
- (uint16_t)p_src1_v[i_x/2] * (MAX_TRANS - i_trans) )
- >> TRANS_BITS;
+ p_dst_u[i_x/2] = ( (uint16_t)p_src2_u[i_x/2] * i_alpha +
+ (uint16_t)p_src1_u[i_x/2] * (MAX_TRANS - i_alpha) )
+ >> TRANS_BITS;
+ p_dst_v[i_x/2] = ( (uint16_t)p_src2_v[i_x/2] * i_alpha +
+ (uint16_t)p_src1_v[i_x/2] * (MAX_TRANS - i_alpha) )
+ >> TRANS_BITS;
}
}
+ if( i_y%2 == 1 )
+ {
+ p_src2_u += i_src2_pitch/2;
+ p_src2_v += i_src2_pitch/2;
+ }
}
#undef MAX_TRANS
#undef TRANS_BITS
-#undef p_trans
-#undef p_pal
return;
}
-
-static void BlendPalYUVPacked( filter_t *p_filter, picture_t *p_dst_pic,
- picture_t *p_dst_orig, picture_t *p_src,
- int i_x_offset, int i_y_offset,
- int i_width, int i_height, int i_alpha )
+static void BlendI420I420_no_alpha( filter_t *p_filter, picture_t *p_dst,
+ picture_t *p_dst_orig, picture_t *p_src,
+ int i_x_offset, int i_y_offset,
+ int i_width, int i_height )
{
int i_src1_pitch, i_src2_pitch, i_dst_pitch;
- uint8_t *p_src1, *p_src2, *p_dst;
- int i_x, i_y, i_pix_pitch, i_trans;
- vlc_bool_t b_even = !((i_x_offset + p_filter->fmt_out.video.i_x_offset)%2);
- int i_u_offset, i_v_offset;
+ uint8_t *p_src1_y, *p_src2_y, *p_dst_y;
+ uint8_t *p_src1_u, *p_src2_u, *p_dst_u;
+ uint8_t *p_src1_v, *p_src2_v, *p_dst_v;
+ int i_y;
+ bool b_even_scanline = i_y_offset % 2;
- if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','U','Y','2') )
- {
- i_u_offset = 1;
- i_v_offset = 3;
- }
- else if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('U','Y','V','Y') )
- {
- i_u_offset = 0;
- i_v_offset = 2;
- }
+ i_dst_pitch = p_dst->p[Y_PLANE].i_pitch;
+ p_dst_y = p_dst->p[Y_PLANE].p_pixels + i_x_offset +
+ p_filter->fmt_out.video.i_x_offset +
+ p_dst->p[Y_PLANE].i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+ p_dst_u = p_dst->p[U_PLANE].p_pixels + i_x_offset/2 +
+ p_filter->fmt_out.video.i_x_offset/2 +
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 *
+ p_dst->p[U_PLANE].i_pitch;
+ p_dst_v = p_dst->p[V_PLANE].p_pixels + i_x_offset/2 +
+ p_filter->fmt_out.video.i_x_offset/2 +
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 *
+ p_dst->p[V_PLANE].i_pitch;
- i_pix_pitch = 2;
+ i_src1_pitch = p_dst_orig->p[Y_PLANE].i_pitch;
+ p_src1_y = p_dst_orig->p[Y_PLANE].p_pixels + i_x_offset +
+ p_filter->fmt_out.video.i_x_offset +
+ p_dst_orig->p[Y_PLANE].i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+ p_src1_u = p_dst_orig->p[U_PLANE].p_pixels + i_x_offset/2 +
+ p_filter->fmt_out.video.i_x_offset/2 +
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 *
+ p_dst_orig->p[U_PLANE].i_pitch;
+ p_src1_v = p_dst_orig->p[V_PLANE].p_pixels + i_x_offset/2 +
+ p_filter->fmt_out.video.i_x_offset/2 +
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 *
+ p_dst_orig->p[V_PLANE].i_pitch;
+
+ i_src2_pitch = p_src->p[Y_PLANE].i_pitch;
+ p_src2_y = p_src->p[Y_PLANE].p_pixels +
+ p_filter->fmt_in.video.i_x_offset +
+ p_src->p[Y_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset;
+ p_src2_u = p_src->p[U_PLANE].p_pixels +
+ p_filter->fmt_in.video.i_x_offset/2 +
+ p_src->p[U_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2;
+ p_src2_v = p_src->p[V_PLANE].p_pixels +
+ p_filter->fmt_in.video.i_x_offset/2 +
+ p_src->p[V_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2;
+
+ i_width &= ~1;
+
+ /* Draw until we reach the bottom of the subtitle */
+ for( i_y = 0; i_y < i_height; i_y++,
+ p_dst_y += i_dst_pitch, p_src1_y += i_src1_pitch,
+ p_src2_y += i_src2_pitch )
+ {
+ /* Completely opaque. Completely overwrite underlying pixel */
+ vlc_memcpy( p_dst_y, p_src2_y, i_width );
+ if( b_even_scanline )
+ {
+ p_dst_u += i_dst_pitch/2;
+ p_dst_v += i_dst_pitch/2;
+ p_src1_u += i_src1_pitch/2;
+ p_src1_v += i_src1_pitch/2;
+ }
+ else
+ {
+ vlc_memcpy( p_dst_u, p_src2_u, i_width/2 );
+ vlc_memcpy( p_dst_v, p_src2_v, i_width/2 );
+ }
+ b_even_scanline = !b_even_scanline;
+ if( i_y%2 == 1 )
+ {
+ p_src2_u += i_src2_pitch/2;
+ p_src2_v += i_src2_pitch/2;
+ }
+ }
+
+ return;
+}
+
+static void BlendI420R16( filter_t *p_filter, picture_t *p_dst_pic,
+ picture_t *p_dst_orig, picture_t *p_src,
+ int i_x_offset, int i_y_offset,
+ int i_width, int i_height, int i_alpha )
+{
+ int i_src1_pitch, i_src2_pitch, i_dst_pitch;
+ uint8_t *p_dst, *p_src1, *p_src2_y;
+ uint8_t *p_src2_u, *p_src2_v;
+ int i_x, i_y, i_pix_pitch;
+ int r, g, b;
+
+ i_pix_pitch = p_dst_pic->p->i_pixel_pitch;
+ i_dst_pitch = p_dst_pic->p->i_pitch;
+ p_dst = p_dst_pic->p->p_pixels + i_x_offset * i_pix_pitch +
+ p_filter->fmt_out.video.i_x_offset * i_pix_pitch +
+ p_dst_pic->p->i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+
+ i_src1_pitch = p_dst_orig->p[Y_PLANE].i_pitch;
+ p_src1 = p_dst_orig->p->p_pixels + i_x_offset * i_pix_pitch +
+ p_filter->fmt_out.video.i_x_offset * i_pix_pitch +
+ p_dst_orig->p->i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+
+ i_src2_pitch = p_src->p[Y_PLANE].i_pitch;
+ p_src2_y = p_src->p[Y_PLANE].p_pixels +
+ p_filter->fmt_in.video.i_x_offset +
+ p_src->p[Y_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset;
+ p_src2_u = p_src->p[U_PLANE].p_pixels +
+ p_filter->fmt_in.video.i_x_offset/2 +
+ p_src->p[U_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2;
+ p_src2_v = p_src->p[V_PLANE].p_pixels +
+ p_filter->fmt_in.video.i_x_offset/2 +
+ p_src->p[V_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2;
+
+#define MAX_TRANS 255
+#define TRANS_BITS 8
+
+ /* Draw until we reach the bottom of the subtitle */
+ for( i_y = 0; i_y < i_height; i_y++,
+ p_dst += i_dst_pitch, p_src1 += i_src1_pitch,
+ p_src2_y += i_src2_pitch )
+ {
+ /* Draw until we reach the end of the line */
+ for( i_x = 0; i_x < i_width; i_x++ )
+ {
+ if( i_alpha == MAX_TRANS )
+ {
+ /* Completely opaque. Completely overwrite underlying pixel */
+ yuv_to_rgb( &r, &g, &b,
+ p_src2_y[i_x], p_src2_u[i_x/2], p_src2_v[i_x/2] );
+
+ ((uint16_t *)(&p_dst[i_x * i_pix_pitch]))[0] = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);
+ continue;
+ }
+
+ /* Blending */
+ /* FIXME: do the blending */
+ yuv_to_rgb( &r, &g, &b,
+ p_src2_y[i_x], p_src2_u[i_x/2], p_src2_v[i_x/2] );
+
+ ((uint16_t *)(&p_dst[i_x * i_pix_pitch]))[0] = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);
+ }
+ if( i_y%2 == 1 )
+ {
+ p_src2_u += i_src2_pitch/2;
+ p_src2_v += i_src2_pitch/2;
+ }
+ }
+
+#undef MAX_TRANS
+#undef TRANS_BITS
+
+ return;
+}
+
+static void BlendI420R24( filter_t *p_filter, picture_t *p_dst_pic,
+ picture_t *p_dst_orig, picture_t *p_src,
+ int i_x_offset, int i_y_offset,
+ int i_width, int i_height, int i_alpha )
+{
+ int i_src1_pitch, i_src2_pitch, i_dst_pitch;
+ uint8_t *p_dst, *p_src1, *p_src2_y;
+ uint8_t *p_src2_u, *p_src2_v;
+ int i_x, i_y, i_pix_pitch;
+ int r, g, b;
+
+ i_pix_pitch = p_dst_pic->p->i_pixel_pitch;
+ i_dst_pitch = p_dst_pic->p->i_pitch;
+ p_dst = p_dst_pic->p->p_pixels + i_x_offset * i_pix_pitch +
+ p_filter->fmt_out.video.i_x_offset * i_pix_pitch +
+ p_dst_pic->p->i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+
+ i_src1_pitch = p_dst_orig->p[Y_PLANE].i_pitch;
+ p_src1 = p_dst_orig->p->p_pixels + i_x_offset * i_pix_pitch +
+ p_filter->fmt_out.video.i_x_offset * i_pix_pitch +
+ p_dst_orig->p->i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+
+ i_src2_pitch = p_src->p[Y_PLANE].i_pitch;
+ p_src2_y = p_src->p[Y_PLANE].p_pixels +
+ p_filter->fmt_in.video.i_x_offset +
+ p_src->p[Y_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset;
+ p_src2_u = p_src->p[U_PLANE].p_pixels +
+ p_filter->fmt_in.video.i_x_offset/2 +
+ p_src->p[U_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2;
+ p_src2_v = p_src->p[V_PLANE].p_pixels +
+ p_filter->fmt_in.video.i_x_offset/2 +
+ p_src->p[V_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2;
+
+#define MAX_TRANS 255
+#define TRANS_BITS 8
+
+ /* Draw until we reach the bottom of the subtitle */
+ for( i_y = 0; i_y < i_height; i_y++,
+ p_dst += i_dst_pitch, p_src1 += i_src1_pitch,
+ p_src2_y += i_src2_pitch, p_src2_u += i_src2_pitch,
+ p_src2_v += i_src2_pitch )
+ {
+ /* Draw until we reach the end of the line */
+ for( i_x = 0; i_x < i_width; i_x++ )
+ {
+ if( i_alpha == MAX_TRANS )
+ {
+ /* Completely opaque. Completely overwrite underlying pixel */
+ yuv_to_rgb( &r, &g, &b,
+ p_src2_y[i_x], p_src2_u[i_x/2], p_src2_v[i_x/2] );
+
+ p_dst[i_x * i_pix_pitch] = r;
+ p_dst[i_x * i_pix_pitch + 1] = g;
+ p_dst[i_x * i_pix_pitch + 2] = b;
+ continue;
+ }
+
+ /* Blending */
+ yuv_to_rgb( &r, &g, &b,
+ p_src2_y[i_x], p_src2_u[i_x/2], p_src2_v[i_x/2] );
+
+ p_dst[i_x * i_pix_pitch] = ( r * i_alpha +
+ (uint16_t)p_src1[i_x * i_pix_pitch] *
+ (MAX_TRANS - i_alpha) ) >> TRANS_BITS;
+ p_dst[i_x * i_pix_pitch + 1] = ( g * i_alpha +
+ (uint16_t)p_src1[i_x * i_pix_pitch + 1] *
+ (MAX_TRANS - i_alpha) ) >> TRANS_BITS;
+ p_dst[i_x * i_pix_pitch + 2] = ( b * i_alpha +
+ (uint16_t)p_src1[i_x * i_pix_pitch + 2] *
+ (MAX_TRANS - i_alpha) ) >> TRANS_BITS;
+ }
+ if( i_y%2 == 1 )
+ {
+ p_src2_u += i_src2_pitch/2;
+ p_src2_v += i_src2_pitch/2;
+ }
+ }
+
+#undef MAX_TRANS
+#undef TRANS_BITS
+
+ return;
+}
+
+static void BlendI420YUVPacked( filter_t *p_filter, picture_t *p_dst_pic,
+ picture_t *p_dst_orig, picture_t *p_src,
+ int i_x_offset, int i_y_offset,
+ int i_width, int i_height, int i_alpha )
+{
+ int i_src1_pitch, i_src2_pitch, i_dst_pitch;
+ uint8_t *p_dst, *p_src1, *p_src2_y;
+ uint8_t *p_src2_u, *p_src2_v;
+ int i_x, i_y, i_pix_pitch;
+ bool b_even = !((i_x_offset + p_filter->fmt_out.video.i_x_offset)%2);
+ int i_l_offset = 0, i_u_offset = 0, i_v_offset = 0;
+
+ if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','U','Y','2') )
+ {
+ i_l_offset = 0;
+ i_u_offset = 1;
+ i_v_offset = 3;
+ }
+ else if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('U','Y','V','Y') )
+ {
+ i_l_offset = 1;
+ i_u_offset = 0;
+ i_v_offset = 2;
+ }
+ else if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','V','Y','U') )
+ {
+ i_l_offset = 0;
+ i_u_offset = 3;
+ i_v_offset = 1;
+ }
+
+ i_pix_pitch = 2;
+ i_dst_pitch = p_dst_pic->p->i_pitch;
+ p_dst = p_dst_pic->p->p_pixels + i_x_offset * i_pix_pitch +
+ p_filter->fmt_out.video.i_x_offset * i_pix_pitch +
+ p_dst_pic->p->i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+
+ i_src1_pitch = p_dst_orig->p[Y_PLANE].i_pitch;
+ p_src1 = p_dst_orig->p->p_pixels + i_x_offset * i_pix_pitch +
+ p_filter->fmt_out.video.i_x_offset * i_pix_pitch +
+ p_dst_orig->p->i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+
+ i_src2_pitch = p_src->p[Y_PLANE].i_pitch;
+ p_src2_y = p_src->p[Y_PLANE].p_pixels +
+ p_filter->fmt_in.video.i_x_offset +
+ p_src->p[Y_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset;
+ p_src2_u = p_src->p[U_PLANE].p_pixels +
+ p_filter->fmt_in.video.i_x_offset/2 +
+ p_src->p[U_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2;
+ p_src2_v = p_src->p[V_PLANE].p_pixels +
+ p_filter->fmt_in.video.i_x_offset/2 +
+ p_src->p[V_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2;
+
+ i_width &= ~1; /* Needs to be a multiple of 2 */
+
+#define MAX_TRANS 255
+#define TRANS_BITS 8
+
+ /* Draw until we reach the bottom of the subtitle */
+ for( i_y = 0; i_y < i_height; i_y++,
+ p_dst += i_dst_pitch, p_src1 += i_src1_pitch,
+ p_src2_y += i_src2_pitch, p_src2_u += i_src2_pitch,
+ p_src2_v += i_src2_pitch )
+ {
+ /* Draw until we reach the end of the line */
+ for( i_x = 0; i_x < i_width; i_x++, b_even = !b_even )
+ {
+ if( i_alpha == MAX_TRANS )
+ {
+ /* Completely opaque. Completely overwrite underlying pixel */
+ p_dst[i_x * 2 + i_l_offset] = p_src2_y[i_x];
+
+ if( b_even )
+ {
+ p_dst[i_x * 2 + i_u_offset] = p_src2_u[i_x/2];
+ p_dst[i_x * 2 + i_v_offset] = p_src2_v[i_x/2];
+ }
+ }
+ else
+ {
+ /* Blending */
+ p_dst[i_x * 2 + i_l_offset] = ( (uint16_t)p_src2_y[i_x] * i_alpha +
+ (uint16_t)p_src1[i_x * 2 + i_l_offset] * (MAX_TRANS - i_alpha) )
+ >> TRANS_BITS;
+
+ if( b_even )
+ {
+ uint16_t i_u = p_src2_u[i_x/2];
+ uint16_t i_v = p_src2_v[i_x/2];
+ p_dst[i_x * 2 + i_u_offset] = ( (uint16_t)i_u * i_alpha +
+ (uint16_t)p_src1[i_x * 2 + i_u_offset] * (MAX_TRANS - i_alpha) )
+ >> TRANS_BITS;
+ p_dst[i_x * 2 + i_v_offset] = ( (uint16_t)i_v * i_alpha +
+ (uint16_t)p_src1[i_x * 2 + i_v_offset] * (MAX_TRANS - i_alpha) )
+ >> TRANS_BITS;
+ }
+ }
+ }
+ if( i_y%2 == 1 )
+ {
+ p_src2_u += i_src2_pitch/2;
+ p_src2_v += i_src2_pitch/2;
+ }
+ }
+
+#undef MAX_TRANS
+#undef TRANS_BITS
+
+ return;
+}
+
+/***********************************************************************
+ * YUVP
+ ***********************************************************************/
+static void BlendPalI420( filter_t *p_filter, picture_t *p_dst,
+ picture_t *p_dst_orig, picture_t *p_src,
+ int i_x_offset, int i_y_offset,
+ int i_width, int i_height, int i_alpha )
+{
+ int i_src1_pitch, i_src2_pitch, i_dst_pitch;
+ uint8_t *p_src1_y, *p_src2, *p_dst_y;
+ uint8_t *p_src1_u, *p_dst_u;
+ uint8_t *p_src1_v, *p_dst_v;
+ int i_x, i_y, i_trans;
+ bool b_even_scanline = i_y_offset % 2;
+
+ i_dst_pitch = p_dst->p[Y_PLANE].i_pitch;
+ p_dst_y = p_dst->p[Y_PLANE].p_pixels + i_x_offset +
+ p_filter->fmt_out.video.i_x_offset +
+ p_dst->p[Y_PLANE].i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+ p_dst_u = p_dst->p[U_PLANE].p_pixels + i_x_offset/2 +
+ p_filter->fmt_out.video.i_x_offset/2 +
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 *
+ p_dst->p[U_PLANE].i_pitch;
+ p_dst_v = p_dst->p[V_PLANE].p_pixels + i_x_offset/2 +
+ p_filter->fmt_out.video.i_x_offset/2 +
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 *
+ p_dst->p[V_PLANE].i_pitch;
+
+ i_src1_pitch = p_dst_orig->p[Y_PLANE].i_pitch;
+ p_src1_y = p_dst_orig->p[Y_PLANE].p_pixels + i_x_offset +
+ p_filter->fmt_out.video.i_x_offset +
+ p_dst_orig->p[Y_PLANE].i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+ p_src1_u = p_dst_orig->p[U_PLANE].p_pixels + i_x_offset/2 +
+ p_filter->fmt_out.video.i_x_offset/2 +
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 *
+ p_dst_orig->p[U_PLANE].i_pitch;
+ p_src1_v = p_dst_orig->p[V_PLANE].p_pixels + i_x_offset/2 +
+ p_filter->fmt_out.video.i_x_offset/2 +
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 *
+ p_dst_orig->p[V_PLANE].i_pitch;
+
+ i_src2_pitch = p_src->p->i_pitch;
+ p_src2 = p_src->p->p_pixels + p_filter->fmt_in.video.i_x_offset +
+ i_src2_pitch * p_filter->fmt_in.video.i_y_offset;
+
+#define MAX_TRANS 255
+#define TRANS_BITS 8
+#define p_trans p_src2
+#define p_pal p_filter->fmt_in.video.p_palette->palette
+
+ /* Draw until we reach the bottom of the subtitle */
+ for( i_y = 0; i_y < i_height; i_y++,
+ p_dst_y += i_dst_pitch, p_src1_y += i_src1_pitch,
+ p_src2 += i_src2_pitch,
+ p_dst_u += b_even_scanline ? i_dst_pitch/2 : 0,
+ p_src1_u += b_even_scanline ? i_src1_pitch/2 : 0,
+ p_dst_v += b_even_scanline ? i_dst_pitch/2 : 0,
+ p_src1_v += b_even_scanline ? i_src1_pitch/2 : 0 )
+ {
+ b_even_scanline = !b_even_scanline;
+
+ /* Draw until we reach the end of the line */
+ for( i_x = 0; i_x < i_width; i_x++ )
+ {
+ i_trans = ( p_pal[p_trans[i_x]][3] * i_alpha ) / 255;
+ if( !i_trans )
+ {
+ /* Completely transparent. Don't change pixel */
+ continue;
+ }
+ else if( i_trans == MAX_TRANS )
+ {
+ /* Completely opaque. Completely overwrite underlying pixel */
+ p_dst_y[i_x] = p_pal[p_src2[i_x]][0];
+
+ if( b_even_scanline && ((i_x % 2) == 0) )
+ {
+ p_dst_u[i_x/2] = p_pal[p_src2[i_x]][1];
+ p_dst_v[i_x/2] = p_pal[p_src2[i_x]][2];
+ }
+ continue;
+ }
+
+ /* Blending */
+ p_dst_y[i_x] = ( (uint16_t)p_pal[p_src2[i_x]][0] * i_trans +
+ (uint16_t)p_src1_y[i_x] * (MAX_TRANS - i_trans) )
+ >> TRANS_BITS;
+
+ if( b_even_scanline && ((i_x % 2) == 0) )
+ {
+ p_dst_u[i_x/2] = ( (uint16_t)p_pal[p_src2[i_x]][1] * i_trans +
+ (uint16_t)p_src1_u[i_x/2] * (MAX_TRANS - i_trans) )
+ >> TRANS_BITS;
+ p_dst_v[i_x/2] = ( (uint16_t)p_pal[p_src2[i_x]][2] * i_trans +
+ (uint16_t)p_src1_v[i_x/2] * (MAX_TRANS - i_trans) )
+ >> TRANS_BITS;
+ }
+ }
+ }
+
+#undef MAX_TRANS
+#undef TRANS_BITS
+#undef p_trans
+#undef p_pal
+
+ return;
+}
+
+static void BlendPalYUVPacked( filter_t *p_filter, picture_t *p_dst_pic,
+ picture_t *p_dst_orig, picture_t *p_src,
+ int i_x_offset, int i_y_offset,
+ int i_width, int i_height, int i_alpha )
+{
+ int i_src1_pitch, i_src2_pitch, i_dst_pitch;
+ uint8_t *p_src1, *p_src2, *p_dst;
+ int i_x, i_y, i_pix_pitch, i_trans;
+ bool b_even = !((i_x_offset + p_filter->fmt_out.video.i_x_offset)%2);
+ int i_l_offset = 0, i_u_offset = 0, i_v_offset = 0;
+
+ if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','U','Y','2') )
+ {
+ i_l_offset = 0;
+ i_u_offset = 1;
+ i_v_offset = 3;
+ }
+ else if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('U','Y','V','Y') )
+ {
+ i_l_offset = 1;
+ i_u_offset = 0;
+ i_v_offset = 2;
+ }
+ else if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','V','Y','U') )
+ {
+ i_l_offset = 0;
+ i_u_offset = 3;
+ i_v_offset = 1;
+ }
+
+ i_pix_pitch = 2;
+ i_dst_pitch = p_dst_pic->p->i_pitch;
+ p_dst = p_dst_pic->p->p_pixels + i_pix_pitch * (i_x_offset +
+ p_filter->fmt_out.video.i_x_offset) + p_dst_pic->p->i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+
+ i_src1_pitch = p_dst_orig->p->i_pitch;
+ p_src1 = p_dst_orig->p->p_pixels + i_pix_pitch * (i_x_offset +
+ p_filter->fmt_out.video.i_x_offset) + p_dst_orig->p->i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+
+ i_src2_pitch = p_src->p->i_pitch;
+ p_src2 = p_src->p->p_pixels + p_filter->fmt_in.video.i_x_offset +
+ i_src2_pitch * p_filter->fmt_in.video.i_y_offset;
+
+ i_width = (i_width >> 1) << 1; /* Needs to be a multiple of 2 */
+
+#define MAX_TRANS 255
+#define TRANS_BITS 8
+#define p_trans p_src2
+#define p_pal p_filter->fmt_in.video.p_palette->palette
+
+ /* Draw until we reach the bottom of the subtitle */
+ for( i_y = 0; i_y < i_height; i_y++,
+ p_dst += i_dst_pitch, p_src1 += i_src1_pitch, p_src2 += i_src2_pitch )
+ {
+ /* Draw until we reach the end of the line */
+ for( i_x = 0; i_x < i_width; i_x++, b_even = !b_even )
+ {
+ i_trans = ( p_pal[p_trans[i_x]][3] * i_alpha ) / 255;
+ if( !i_trans )
+ {
+ /* Completely transparent. Don't change pixel */
+ }
+ else if( i_trans == MAX_TRANS )
+ {
+ /* Completely opaque. Completely overwrite underlying pixel */
+ p_dst[i_x * 2 + i_l_offset] = p_pal[p_src2[i_x]][0];
+
+ if( b_even )
+ {
+ if( p_trans[i_x+1] > 0xaa )
+ {
+ p_dst[i_x * 2 + i_u_offset] = (p_pal[p_src2[i_x]][1] + p_pal[p_src2[i_x+1]][1]) >> 1;
+ p_dst[i_x * 2 + i_v_offset] = (p_pal[p_src2[i_x]][2] + p_pal[p_src2[i_x+1]][2]) >> 1;
+ }
+ else
+ {
+ p_dst[i_x * 2 + i_u_offset] = p_pal[p_src2[i_x]][1];
+ p_dst[i_x * 2 + i_v_offset] = p_pal[p_src2[i_x]][2];
+ }
+ }
+ }
+ else
+ {
+ /* Blending */
+ p_dst[i_x * 2 + i_l_offset] = ( (uint16_t)p_pal[p_src2[i_x]][0] *
+ i_trans + (uint16_t)p_src1[i_x * 2 + i_l_offset] *
+ (MAX_TRANS - i_trans) ) >> TRANS_BITS;
+
+ if( b_even )
+ {
+ uint16_t i_u = 0;
+ uint16_t i_v = 0;
+ if( p_trans[i_x+1] > 0xaa )
+ {
+ i_u = (p_pal[p_src2[i_x]][1] + p_pal[p_src2[i_x+1]][1]) >> 1;
+ i_v = (p_pal[p_src2[i_x]][2] + p_pal[p_src2[i_x+1]][2]) >> 1;
+ }
+ else
+ {
+ i_u = p_pal[p_src2[i_x]][1];
+ i_v = p_pal[p_src2[i_x]][2];
+ }
+
+ p_dst[i_x * 2 + i_u_offset] = ( (uint16_t)i_u *
+ i_trans + (uint16_t)p_src1[i_x * 2 + i_u_offset] *
+ (MAX_TRANS - i_trans) ) >> TRANS_BITS;
+ p_dst[i_x * 2 + i_v_offset] = ( (uint16_t)i_v *
+ i_trans + (uint16_t)p_src1[i_x * 2 + i_v_offset] *
+ (MAX_TRANS - i_trans) ) >> TRANS_BITS;
+ }
+ }
+ }
+ }
+
+#undef MAX_TRANS
+#undef TRANS_BITS
+#undef p_trans
+#undef p_pal
+
+ return;
+}
+
+static void BlendPalRV( filter_t *p_filter, picture_t *p_dst_pic,
+ picture_t *p_dst_orig, picture_t *p_src,
+ int i_x_offset, int i_y_offset,
+ int i_width, int i_height, int i_alpha )
+{
+ int i_src1_pitch, i_src2_pitch, i_dst_pitch;
+ uint8_t *p_src1, *p_src2, *p_dst;
+ int i_x, i_y, i_pix_pitch, i_trans;
+ int r, g, b;
+ video_palette_t rgbpalette;
+
+ i_pix_pitch = p_dst_pic->p->i_pixel_pitch;
i_dst_pitch = p_dst_pic->p->i_pitch;
p_dst = p_dst_pic->p->p_pixels + i_pix_pitch * (i_x_offset +
p_filter->fmt_out.video.i_x_offset) + p_dst_pic->p->i_pitch *
( i_y_offset + p_filter->fmt_out.video.i_y_offset );
- i_src1_pitch = p_dst_orig->p->i_pitch;
- p_src1 = p_dst_orig->p->p_pixels + i_pix_pitch * (i_x_offset +
- p_filter->fmt_out.video.i_x_offset) + p_dst_orig->p->i_pitch *
- ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+ i_src1_pitch = p_dst_orig->p->i_pitch;
+ p_src1 = p_dst_orig->p->p_pixels + i_pix_pitch * (i_x_offset +
+ p_filter->fmt_out.video.i_x_offset) + p_dst_orig->p->i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+
+ i_src2_pitch = p_src->p->i_pitch;
+ p_src2 = p_src->p->p_pixels + p_filter->fmt_in.video.i_x_offset +
+ i_src2_pitch * p_filter->fmt_in.video.i_y_offset;
+
+#define MAX_TRANS 255
+#define TRANS_BITS 8
+#define p_trans p_src2
+#define p_pal p_filter->fmt_in.video.p_palette->palette
+#define rgbpal rgbpalette.palette
+
+ /* Convert palette first */
+ for( i_y = 0; i_y < p_filter->fmt_in.video.p_palette->i_entries &&
+ i_y < 256; i_y++ )
+ {
+ yuv_to_rgb( &r, &g, &b, p_pal[i_y][0], p_pal[i_y][1], p_pal[i_y][2] );
+
+ if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('R','V','1','6') )
+ {
+ *(uint16_t *)rgbpal[i_y] =
+ ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);
+ }
+ else
+ {
+ rgbpal[i_y][0] = r; rgbpal[i_y][1] = g; rgbpal[i_y][2] = b;
+ }
+ }
+
+ /* Draw until we reach the bottom of the subtitle */
+ for( i_y = 0; i_y < i_height; i_y++,
+ p_dst += i_dst_pitch, p_src1 += i_src1_pitch, p_src2 += i_src2_pitch )
+ {
+ /* Draw until we reach the end of the line */
+ for( i_x = 0; i_x < i_width; i_x++ )
+ {
+ i_trans = ( p_pal[p_trans[i_x]][3] * i_alpha ) / 255;
+ if( !i_trans )
+ {
+ /* Completely transparent. Don't change pixel */
+ continue;
+ }
+ else if( i_trans == MAX_TRANS ||
+ p_filter->fmt_out.video.i_chroma ==
+ VLC_FOURCC('R','V','1','6') )
+ {
+ /* Completely opaque. Completely overwrite underlying pixel */
+ p_dst[i_x * i_pix_pitch] = rgbpal[p_src2[i_x]][0];
+ p_dst[i_x * i_pix_pitch + 1] = rgbpal[p_src2[i_x]][1];
+ if( p_filter->fmt_out.video.i_chroma !=
+ VLC_FOURCC('R','V','1','6') )
+ p_dst[i_x * i_pix_pitch + 2] = rgbpal[p_src2[i_x]][2];
+ continue;
+ }
+
+ /* Blending */
+ p_dst[i_x * i_pix_pitch] = ( (uint16_t)rgbpal[p_src2[i_x]][0] *
+ i_trans + (uint16_t)p_src1[i_x * i_pix_pitch] *
+ (MAX_TRANS - i_trans) ) >> TRANS_BITS;
+ p_dst[i_x * i_pix_pitch + 1] = ( (uint16_t)rgbpal[p_src2[i_x]][1] *
+ i_trans + (uint16_t)p_src1[i_x * i_pix_pitch + 1] *
+ (MAX_TRANS - i_trans) ) >> TRANS_BITS;
+ p_dst[i_x * i_pix_pitch + 2] = ( (uint16_t)rgbpal[p_src2[i_x]][2] *
+ i_trans + (uint16_t)p_src1[i_x * i_pix_pitch + 2] *
+ (MAX_TRANS - i_trans) ) >> TRANS_BITS;
+ }
+ }
+
+#undef MAX_TRANS
+#undef TRANS_BITS
+#undef p_trans
+#undef p_pal
+#undef rgbpal
+
+ return;
+}
+
+/***********************************************************************
+ * RGBA
+ ***********************************************************************/
+static void BlendRGBAI420( filter_t *p_filter, picture_t *p_dst,
+ picture_t *p_dst_orig, picture_t *p_src,
+ int i_x_offset, int i_y_offset,
+ int i_width, int i_height, int i_alpha )
+{
+ int i_src1_pitch, i_src2_pitch, i_dst_pitch, i_src_pix_pitch;
+ uint8_t *p_src1_y, *p_dst_y;
+ uint8_t *p_src1_u, *p_dst_u;
+ uint8_t *p_src1_v, *p_dst_v;
+ uint8_t *p_src2;
+ int i_x, i_y, i_trans;
+ uint8_t y, u, v;
+
+ bool b_even_scanline = i_y_offset % 2;
+
+ i_dst_pitch = p_dst->p[Y_PLANE].i_pitch;
+ p_dst_y = p_dst->p[Y_PLANE].p_pixels + i_x_offset +
+ p_filter->fmt_out.video.i_x_offset +
+ p_dst->p[Y_PLANE].i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+ p_dst_u = p_dst->p[U_PLANE].p_pixels + i_x_offset/2 +
+ p_filter->fmt_out.video.i_x_offset/2 +
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 *
+ p_dst->p[U_PLANE].i_pitch;
+ p_dst_v = p_dst->p[V_PLANE].p_pixels + i_x_offset/2 +
+ p_filter->fmt_out.video.i_x_offset/2 +
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 *
+ p_dst->p[V_PLANE].i_pitch;
+
+ i_src1_pitch = p_dst_orig->p[Y_PLANE].i_pitch;
+ p_src1_y = p_dst_orig->p[Y_PLANE].p_pixels + i_x_offset +
+ p_filter->fmt_out.video.i_x_offset +
+ p_dst_orig->p[Y_PLANE].i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+ p_src1_u = p_dst_orig->p[U_PLANE].p_pixels + i_x_offset/2 +
+ p_filter->fmt_out.video.i_x_offset/2 +
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 *
+ p_dst_orig->p[U_PLANE].i_pitch;
+ p_src1_v = p_dst_orig->p[V_PLANE].p_pixels + i_x_offset/2 +
+ p_filter->fmt_out.video.i_x_offset/2 +
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 *
+ p_dst_orig->p[V_PLANE].i_pitch;
+ i_src_pix_pitch = p_src->p->i_pixel_pitch;
i_src2_pitch = p_src->p->i_pitch;
- p_src2 = p_src->p->p_pixels + p_filter->fmt_in.video.i_x_offset +
- i_src2_pitch * p_filter->fmt_in.video.i_y_offset;
+ p_src2 = p_src->p->p_pixels +
+ p_filter->fmt_in.video.i_x_offset * i_src2_pitch +
+ p_src->p->i_pitch * p_filter->fmt_in.video.i_y_offset;
- i_width = (i_width >> 1) << 1; /* Needs to be a multiple of 2 */
#define MAX_TRANS 255
#define TRANS_BITS 8
-#define p_trans p_src2
-#define p_pal p_filter->fmt_in.video.p_palette->palette
/* Draw until we reach the bottom of the subtitle */
for( i_y = 0; i_y < i_height; i_y++,
- p_dst += i_dst_pitch, p_src1 += i_src1_pitch, p_src2 += i_src2_pitch )
+ p_dst_y += i_dst_pitch, p_src1_y += i_src1_pitch,
+ p_dst_u += b_even_scanline ? i_dst_pitch/2 : 0,
+ p_src1_u += b_even_scanline ? i_src1_pitch/2 : 0,
+ p_dst_v += b_even_scanline ? i_dst_pitch/2 : 0,
+ p_src1_v += b_even_scanline ? i_src1_pitch/2 : 0,
+ p_src2 += i_src2_pitch )
{
+ b_even_scanline = !b_even_scanline;
+
/* Draw until we reach the end of the line */
- for( i_x = 0; i_x < i_width; i_x++, b_even = !b_even )
+ for( i_x = 0; i_x < i_width; i_x++ )
{
- i_trans = ( p_pal[p_trans[i_x]][3] * i_alpha ) / 255;
+#define R ( p_src2[i_x * i_src_pix_pitch + 0] )
+#define G ( p_src2[i_x * i_src_pix_pitch + 1] )
+#define B ( p_src2[i_x * i_src_pix_pitch + 2] )
+ i_trans = ( p_src2[i_x * i_src_pix_pitch + 3] * i_alpha ) / 255;
if( !i_trans )
{
/* Completely transparent. Don't change pixel */
+ continue;
}
else if( i_trans == MAX_TRANS )
{
/* Completely opaque. Completely overwrite underlying pixel */
- p_dst[i_x * 2] = p_pal[p_src2[i_x]][0];
+ rgb_to_yuv( &y, &u, &v, R, G, B );
+ p_dst_y[i_x] = y;
- if( b_even )
+ if( b_even_scanline && i_x % 2 == 0 )
{
- p_dst[i_x * 2 + i_u_offset] = p_pal[p_src2[i_x]][1];
- p_dst[i_x * 2 + i_v_offset] = p_pal[p_src2[i_x]][2];
+ p_dst_u[i_x/2] = u;
+ p_dst_v[i_x/2] = v;
}
+ continue;
}
- else
- {
- /* Blending */
- p_dst[i_x * 2] = ( (uint16_t)p_pal[p_src2[i_x]][0] *
- i_trans + (uint16_t)p_src1[i_x * 2] *
- (MAX_TRANS - i_trans) ) >> TRANS_BITS;
- if( b_even )
- {
- p_dst[i_x * 2 + i_u_offset] = ( (uint16_t)p_pal[p_src2[i_x]][1] *
- i_trans + (uint16_t)p_src1[i_x * 2 + i_u_offset] *
- (MAX_TRANS - i_trans) ) >> TRANS_BITS;
- p_dst[i_x * 2 + i_v_offset] = ( (uint16_t)p_pal[p_src2[i_x]][2] *
- i_trans + (uint16_t)p_src1[i_x * 2 + i_v_offset] *
- (MAX_TRANS - i_trans) ) >> TRANS_BITS;
- }
+ /* Blending */
+ rgb_to_yuv( &y, &u, &v, R, G, B );
+ p_dst_y[i_x] = ( (uint16_t)y * i_trans +
+ (uint16_t)p_src1_y[i_x] * (MAX_TRANS - i_trans) )
+ >> TRANS_BITS;
+
+ if( b_even_scanline && i_x % 2 == 0 )
+ {
+ p_dst_u[i_x/2] = ( (uint16_t)u * i_trans +
+ (uint16_t)p_src1_u[i_x/2] * (MAX_TRANS - i_trans) )
+ >> TRANS_BITS;
+ p_dst_v[i_x/2] = ( (uint16_t)v * i_trans +
+ (uint16_t)p_src1_v[i_x/2] * (MAX_TRANS - i_trans) )
+ >> TRANS_BITS;
}
+#undef R
+#undef G
+#undef B
}
}
#undef MAX_TRANS
#undef TRANS_BITS
-#undef p_trans
-#undef p_pal
return;
}
-static void BlendPalRV( filter_t *p_filter, picture_t *p_dst_pic,
- picture_t *p_dst_orig, picture_t *p_src,
- int i_x_offset, int i_y_offset,
- int i_width, int i_height, int i_alpha )
+static void BlendRGBAR24( filter_t *p_filter, picture_t *p_dst_pic,
+ picture_t *p_dst_orig, picture_t *p_src,
+ int i_x_offset, int i_y_offset,
+ int i_width, int i_height, int i_alpha )
{
int i_src1_pitch, i_src2_pitch, i_dst_pitch;
- uint8_t *p_src1, *p_src2, *p_dst;
- int i_x, i_y, i_pix_pitch, i_trans;
- int r, g, b;
- video_palette_t rgbpalette;
+ uint8_t *p_dst, *p_src1, *p_src2;
+ int i_x, i_y, i_pix_pitch, i_trans, i_src_pix_pitch;
i_pix_pitch = p_dst_pic->p->i_pixel_pitch;
i_dst_pitch = p_dst_pic->p->i_pitch;
- p_dst = p_dst_pic->p->p_pixels + i_pix_pitch * (i_x_offset +
- p_filter->fmt_out.video.i_x_offset) + p_dst_pic->p->i_pitch *
+ p_dst = p_dst_pic->p->p_pixels + i_x_offset * i_pix_pitch +
+ p_filter->fmt_out.video.i_x_offset * i_pix_pitch +
+ p_dst_pic->p->i_pitch *
( i_y_offset + p_filter->fmt_out.video.i_y_offset );
i_src1_pitch = p_dst_orig->p->i_pitch;
- p_src1 = p_dst_orig->p->p_pixels + i_pix_pitch * (i_x_offset +
- p_filter->fmt_out.video.i_x_offset) + p_dst_orig->p->i_pitch *
+ p_src1 = p_dst_orig->p->p_pixels + i_x_offset * i_pix_pitch +
+ p_filter->fmt_out.video.i_x_offset * i_pix_pitch +
+ p_dst_orig->p->i_pitch *
( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+ i_src_pix_pitch = p_src->p->i_pixel_pitch;
i_src2_pitch = p_src->p->i_pitch;
- p_src2 = p_src->p->p_pixels + p_filter->fmt_in.video.i_x_offset +
- i_src2_pitch * p_filter->fmt_in.video.i_y_offset;
+ p_src2 = p_src->p->p_pixels +
+ p_filter->fmt_in.video.i_x_offset * i_pix_pitch +
+ p_src->p->i_pitch * p_filter->fmt_in.video.i_y_offset;
#define MAX_TRANS 255
#define TRANS_BITS 8
-#define p_trans p_src2
-#define p_pal p_filter->fmt_in.video.p_palette->palette
-#define rgbpal rgbpalette.palette
- /* Convert palette first */
- for( i_y = 0; i_y < p_filter->fmt_in.video.p_palette->i_entries &&
- i_y < 256; i_y++ )
+ /* Draw until we reach the bottom of the subtitle */
+ for( i_y = 0; i_y < i_height; i_y++,
+ p_dst += i_dst_pitch, p_src1 += i_src1_pitch, p_src2 += i_src2_pitch )
{
- yuv_to_rgb( &r, &g, &b, p_pal[i_y][0], p_pal[i_y][1], p_pal[i_y][2] );
-
- if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('R','V','1','6') )
- {
- *(uint16_t *)rgbpal[i_y] =
- ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);
- }
- else
+ /* Draw until we reach the end of the line */
+ for( i_x = 0; i_x < i_width; i_x++ )
{
- rgbpal[i_y][0] = r; rgbpal[i_y][1] = g; rgbpal[i_y][2] = b;
+#define R ( p_src2[i_x * i_src_pix_pitch + 0] )
+#define G ( p_src2[i_x * i_src_pix_pitch + 1] )
+#define B ( p_src2[i_x * i_src_pix_pitch + 2] )
+ i_trans = ( p_src2[i_x * i_src_pix_pitch + 3] * i_alpha ) / 255;
+ if( !i_trans )
+ {
+ /* Completely transparent. Don't change pixel */
+ continue;
+ }
+ else if( i_trans == MAX_TRANS )
+ {
+ /* Completely opaque. Completely overwrite underlying pixel */
+ p_dst[i_x * i_pix_pitch + 0] = R;
+ p_dst[i_x * i_pix_pitch + 1] = G;
+ p_dst[i_x * i_pix_pitch + 2] = B;
+ continue;
+ }
+
+ /* Blending */
+ p_dst[i_x * i_pix_pitch + 0] = ( R * i_trans +
+ (uint16_t)p_src1[i_x * i_pix_pitch + 0] *
+ (MAX_TRANS - i_trans) ) >> TRANS_BITS;
+ p_dst[i_x * i_pix_pitch + 1] = ( G * i_trans +
+ (uint16_t)p_src1[i_x * i_pix_pitch + 1] *
+ (MAX_TRANS - i_trans) ) >> TRANS_BITS;
+ p_dst[i_x * i_pix_pitch + 2] = ( B * i_trans +
+ (uint16_t)p_src1[i_x * i_pix_pitch + 2] *
+ (MAX_TRANS - i_trans) ) >> TRANS_BITS;
+#undef R
+#undef G
+#undef B
}
}
+#undef MAX_TRANS
+#undef TRANS_BITS
+
+ return;
+}
+
+static void BlendRGBAR16( filter_t *p_filter, picture_t *p_dst_pic,
+ picture_t *p_dst_orig, picture_t *p_src,
+ int i_x_offset, int i_y_offset,
+ int i_width, int i_height, int i_alpha )
+{
+ int i_src1_pitch, i_src2_pitch, i_dst_pitch;
+ uint8_t *p_dst, *p_src1, *p_src2;
+ int i_x, i_y, i_pix_pitch, i_trans, i_src_pix_pitch;
+ uint16_t i_pix;
+
+ i_pix_pitch = p_dst_pic->p->i_pixel_pitch;
+ i_dst_pitch = p_dst_pic->p->i_pitch;
+ p_dst = p_dst_pic->p->p_pixels + i_x_offset * i_pix_pitch +
+ p_filter->fmt_out.video.i_x_offset * i_pix_pitch +
+ p_dst_pic->p->i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+
+ i_src1_pitch = p_dst_orig->p->i_pitch;
+ p_src1 = p_dst_orig->p->p_pixels + i_x_offset * i_pix_pitch +
+ p_filter->fmt_out.video.i_x_offset * i_pix_pitch +
+ p_dst_orig->p->i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+
+ i_src_pix_pitch = p_src->p->i_pixel_pitch;
+ i_src2_pitch = p_src->p->i_pitch;
+ p_src2 = p_src->p->p_pixels +
+ p_filter->fmt_in.video.i_x_offset * i_pix_pitch +
+ p_src->p->i_pitch * p_filter->fmt_in.video.i_y_offset;
+
+#define MAX_TRANS 255
+#define TRANS_BITS 8
+
/* Draw until we reach the bottom of the subtitle */
for( i_y = 0; i_y < i_height; i_y++,
p_dst += i_dst_pitch, p_src1 += i_src1_pitch, p_src2 += i_src2_pitch )
/* Draw until we reach the end of the line */
for( i_x = 0; i_x < i_width; i_x++ )
{
- i_trans = ( p_pal[p_trans[i_x]][3] * i_alpha ) / 255;
+#define R ( p_src2[i_x * i_src_pix_pitch + 0] )
+#define G ( p_src2[i_x * i_src_pix_pitch + 1] )
+#define B ( p_src2[i_x * i_src_pix_pitch + 2] )
+ i_trans = ( p_src2[i_x * i_src_pix_pitch + 3] * i_alpha ) / 255;
if( !i_trans )
{
/* Completely transparent. Don't change pixel */
continue;
}
- else if( i_trans == MAX_TRANS ||
- p_filter->fmt_out.video.i_chroma ==
- VLC_FOURCC('R','V','1','6') )
+ else if( i_trans == MAX_TRANS )
{
/* Completely opaque. Completely overwrite underlying pixel */
- p_dst[i_x * i_pix_pitch] = rgbpal[p_src2[i_x]][0];
- p_dst[i_x * i_pix_pitch + 1] = rgbpal[p_src2[i_x]][1];
- if( p_filter->fmt_out.video.i_chroma !=
- VLC_FOURCC('R','V','1','6') )
- p_dst[i_x * i_pix_pitch + 2] = rgbpal[p_src2[i_x]][2];
+ *((uint16_t *)(&p_dst[i_x * i_pix_pitch])) = ((R >> 3) << 11) | ((G >> 2) << 5) | (B >> 3);
continue;
}
/* Blending */
- p_dst[i_x * i_pix_pitch] = ( (uint16_t)rgbpal[p_src2[i_x]][0] *
- i_trans + (uint16_t)p_src1[i_x * i_pix_pitch] *
- (MAX_TRANS - i_trans) ) >> TRANS_BITS;
- p_dst[i_x * i_pix_pitch + 1] = ( (uint16_t)rgbpal[p_src2[i_x]][1] *
- i_trans + (uint16_t)p_src1[i_x * i_pix_pitch + 1] *
- (MAX_TRANS - i_trans) ) >> TRANS_BITS;
- p_dst[i_x * i_pix_pitch + 2] = ( (uint16_t)rgbpal[p_src2[i_x]][2] *
- i_trans + (uint16_t)p_src1[i_x * i_pix_pitch + 2] *
- (MAX_TRANS - i_trans) ) >> TRANS_BITS;
+ i_pix = *((uint16_t *)(&p_dst[i_x * i_pix_pitch]));
+ *((uint16_t *)(&p_dst[i_x * i_pix_pitch])) =
+ ( ( ( (R >> 3)*i_trans
+ + (i_pix >> 11) * (MAX_TRANS - i_trans) )
+ >> TRANS_BITS ) << 11 )
+ | ( ( ( (G >> 2)*i_trans
+ + ((i_pix & 0x07e0)>> 5) * (MAX_TRANS - i_trans) )
+ >> TRANS_BITS ) << 5 )
+ | ( ( ( (B >> 3)*i_trans
+ + (i_pix & 0x001f) * (MAX_TRANS - i_trans) )
+ >> TRANS_BITS ) );
+#undef R
+#undef G
+#undef B
}
}
#undef MAX_TRANS
#undef TRANS_BITS
-#undef p_trans
-#undef p_pal
-#undef rgbpal
return;
}
-/*****************************************************************************
- * CloseFilter: clean up the filter
- *****************************************************************************/
-static void CloseFilter( vlc_object_t *p_this )
+static void BlendRGBAYUVPacked( filter_t *p_filter, picture_t *p_dst_pic,
+ picture_t *p_dst_orig, picture_t *p_src,
+ int i_x_offset, int i_y_offset,
+ int i_width, int i_height, int i_alpha )
{
- filter_t *p_filter = (filter_t*)p_this;
- filter_sys_t *p_sys = p_filter->p_sys;
+ int i_src1_pitch, i_src2_pitch, i_dst_pitch, i_src_pix_pitch;
+ uint8_t *p_dst, *p_src1, *p_src2;
+ uint8_t *p_trans;
+ int i_x, i_y, i_pix_pitch, i_trans;
+ bool b_even = !((i_x_offset + p_filter->fmt_out.video.i_x_offset)%2);
+ int i_l_offset = 0, i_u_offset = 0, i_v_offset = 0;
+ uint8_t y, u, v;
- free( p_sys );
+ if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','U','Y','2') )
+ {
+ i_l_offset = 0;
+ i_u_offset = 1;
+ i_v_offset = 3;
+ }
+ else if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('U','Y','V','Y') )
+ {
+ i_l_offset = 1;
+ i_u_offset = 0;
+ i_v_offset = 2;
+ }
+ else if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','V','Y','U') )
+ {
+ i_l_offset = 0;
+ i_u_offset = 3;
+ i_v_offset = 1;
+ }
+
+ i_pix_pitch = 2;
+ i_dst_pitch = p_dst_pic->p->i_pitch;
+ p_dst = p_dst_pic->p->p_pixels + i_x_offset * i_pix_pitch +
+ p_filter->fmt_out.video.i_x_offset * i_pix_pitch +
+ p_dst_pic->p->i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+
+ i_src1_pitch = p_dst_orig->p[Y_PLANE].i_pitch;
+ p_src1 = p_dst_orig->p->p_pixels + i_x_offset * i_pix_pitch +
+ p_filter->fmt_out.video.i_x_offset * i_pix_pitch +
+ p_dst_orig->p->i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+
+ i_src_pix_pitch = p_src->p->i_pixel_pitch;
+ i_src2_pitch = p_src->p->i_pitch;
+ p_src2 = p_src->p->p_pixels +
+ p_filter->fmt_in.video.i_x_offset * i_src2_pitch +
+ p_src->p->i_pitch * p_filter->fmt_in.video.i_y_offset;
+
+ i_width = (i_width >> 1) << 1; /* Needs to be a multiple of 2 */
+
+#define MAX_TRANS 255
+#define TRANS_BITS 8
+
+ /* Draw until we reach the bottom of the subtitle */
+ for( i_y = 0; i_y < i_height; i_y++, p_trans += i_src2_pitch,
+ p_dst += i_dst_pitch, p_src1 += i_src1_pitch,
+ p_src2 += i_src2_pitch )
+ {
+ /* Draw until we reach the end of the line */
+ for( i_x = 0; i_x < i_width; i_x++, b_even = !b_even )
+ {
+#define R ( p_src2[i_x * i_src_pix_pitch + 0] )
+#define G ( p_src2[i_x * i_src_pix_pitch + 1] )
+#define B ( p_src2[i_x * i_src_pix_pitch + 2] )
+ i_trans = ( p_src2[i_x * i_src_pix_pitch + 3] * i_alpha ) / 255;
+ if( !i_trans )
+ {
+ /* Completely transparent. Don't change pixel */
+ }
+ else if( i_trans == MAX_TRANS )
+ {
+ /* Completely opaque. Completely overwrite underlying pixel */
+ rgb_to_yuv( &y, &u, &v, R, G, B );
+ p_dst[i_x * 2 + i_l_offset] = y;
+
+ if( b_even )
+ {
+ p_dst[i_x * 2 + i_u_offset] = u;
+ p_dst[i_x * 2 + i_v_offset] = v;
+ }
+ }
+ else
+ {
+ /* Blending */
+ rgb_to_yuv( &y, &u, &v, R, G, B );
+ p_dst[i_x * 2 + i_l_offset] = ( (uint16_t)y * i_trans +
+ (uint16_t)p_src1[i_x * 2 + i_l_offset] * (MAX_TRANS - i_trans) )
+ >> TRANS_BITS;
+
+ if( b_even )
+ {
+ p_dst[i_x * 2 + i_u_offset] = ( (uint16_t)u * i_trans +
+ (uint16_t)p_src1[i_x * 2 + i_u_offset] * (MAX_TRANS - i_trans) )
+ >> TRANS_BITS;
+ p_dst[i_x * 2 + i_v_offset] = ( (uint16_t)v * i_trans +
+ (uint16_t)p_src1[i_x * 2 + i_v_offset] * (MAX_TRANS - i_trans) )
+ >> TRANS_BITS;
+ }
+ }
+ }
+ }
+
+#undef MAX_TRANS
+#undef TRANS_BITS
+
+ return;
}
projects / vlc / blobdiff