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vlc-2-2
Commit 9a1b826c authored by Damien Fouilleul's avatar Damien Fouilleul
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- blend.c: fix for BlendRV24, needs testing, dionoea ?

parent da36c9fc
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Showing with 181 additions and 33 deletions
modules/video_filter/blend.c
View file @ 9a1b826c
......@@ -566,7 +566,7 @@ static void BlendR24( filter_t *p_filter, picture_t *p_dst_pic,
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 *
......@@ -590,9 +590,62 @@ static void BlendR24( filter_t *p_filter, picture_t *p_dst_pic,
#define MAX_TRANS 255
#define TRANS_BITS 8
if( (i_pix_pitch == 4)
&& (((((int)p_dst)|((int)p_src1)|i_dst_pitch|i_src1_pitch) & 3) == 0) )
{
/*
** 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_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) )
{
/* X8R8G8B8 pixel layout */
i_rshift = 16;
i_bshift = 8;
i_gshift = 0;
}
else if( (i_rmask == 0xFF000000)
&& (i_gmask == 0x00FF0000)
&& (i_bmask == 0x0000FF00) )
{
/* 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,
p_dst += i_dst_pitch, p_src1 += i_src1_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 )
{
......@@ -612,27 +665,122 @@ static void BlendR24( filter_t *p_filter, picture_t *p_dst_pic,
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;
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_x * i_pix_pitch] = ( r * i_trans +
(uint16_t)p_src1[i_x * i_pix_pitch] *
p_dst[i_rpos] = ( r * i_trans +
(uint16_t)p_src1[i_rpos] *
(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] *
p_dst[i_gpos] = ( r * i_trans +
(uint16_t)p_src1[i_gpos] *
(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] *
p_dst[i_bpos] = ( r * i_trans +
(uint16_t)p_src1[i_gpos] *
(MAX_TRANS - i_trans) ) >> TRANS_BITS;
}
}
}
}
}
#undef MAX_TRANS
#undef TRANS_BITS
......
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