Implemented filter_avg for PowerPC VXS
This commit is contained in:
Vadim Barkov
parent
6ddcd33daa
commit
c43aaa8b20
@ -100,6 +100,15 @@ void png_read_filter_row_up_vsx(png_row_infop row_info, png_bytep row,
|
|||||||
#define VEC_SELECT4_3 (vector unsigned char){16,16,16,16,16,16,16,16,16,16,16,16,9,10,11,16}
|
#define VEC_SELECT4_3 (vector unsigned char){16,16,16,16,16,16,16,16,16,16,16,16,9,10,11,16}
|
||||||
|
|
||||||
|
|
||||||
|
#define VEC_AVG_SELECT1_4 (vector unsigned char){16,16,16,16, 4, 5, 6, 7,16,16,16,16,16,16,16,16}
|
||||||
|
#define VEC_AVG_SELECT2_4 (vector unsigned char){16,16,16,16,16,16,16,16, 8, 9,10,11,16,16,16,16}
|
||||||
|
#define VEC_AVG_SELECT3_4 (vector unsigned char){16,16,16,16,16,16,16,16,16,16,16,16,12,13,14,15}
|
||||||
|
|
||||||
|
#define VEC_AVG_SELECT1_3 (vector unsigned char){16,16,16, 3, 4, 5,16,16,16,16,16,16,16,16,16,16}
|
||||||
|
#define VEC_AVG_SELECT2_3 (vector unsigned char){16,16,16,16,16,16, 6, 7, 8,16,16,16,16,16,16,16}
|
||||||
|
#define VEC_AVG_SELECT3_3 (vector unsigned char){16,16,16,16,16,16,16,16,16, 9,10,11,16,16,16,16}
|
||||||
|
#define VEC_AVG_SELECT4_3 (vector unsigned char){16,16,16,16,16,16,16,16,16,16,16,16,12,13,14,16}
|
||||||
|
|
||||||
void png_read_filter_row_sub4_vsx(png_row_infop row_info, png_bytep row,
|
void png_read_filter_row_sub4_vsx(png_row_infop row_info, png_bytep row,
|
||||||
png_const_bytep prev_row)
|
png_const_bytep prev_row)
|
||||||
{
|
{
|
||||||
@ -224,53 +233,187 @@ void png_read_filter_row_sub3_vsx(png_row_infop row_info, png_bytep row,
|
|||||||
void png_read_filter_row_avg4_vsx(png_row_infop row_info, png_bytep row,
|
void png_read_filter_row_avg4_vsx(png_row_infop row_info, png_bytep row,
|
||||||
png_const_bytep prev_row)
|
png_const_bytep prev_row)
|
||||||
{
|
{
|
||||||
png_size_t i;
|
const unsigned int bpp = 4;
|
||||||
png_bytep rp = row;
|
png_size_t i;
|
||||||
png_const_bytep pp = prev_row;
|
|
||||||
unsigned int bpp = (row_info->pixel_depth + 7) >> 3;
|
|
||||||
png_size_t istop = row_info->rowbytes - bpp;
|
|
||||||
|
|
||||||
for (i = 0; i < bpp; i++)
|
png_size_t unaligned_top = 16 - ((png_size_t)row % 16);
|
||||||
{
|
png_size_t istop = row_info->rowbytes - unaligned_top;
|
||||||
*rp = (png_byte)(((int)(*rp) +
|
|
||||||
((int)(*pp++) / 2 )) & 0xff);
|
|
||||||
|
|
||||||
rp++;
|
png_bytep rp = row;
|
||||||
}
|
png_const_bytep pp = prev_row;
|
||||||
|
|
||||||
for (i = 0; i < istop; i++)
|
vector unsigned char rp_vec;
|
||||||
{
|
vector unsigned char pp_vec;
|
||||||
*rp = (png_byte)(((int)(*rp) +
|
vector unsigned char pp_part_vec;
|
||||||
(int)(*pp++ + *(rp-bpp)) / 2 ) & 0xff);
|
vector unsigned char rp_part_vec;
|
||||||
|
vector unsigned char avg_vec;
|
||||||
|
vector unsigned char zero_vec = {0};
|
||||||
|
|
||||||
rp++;
|
for (i = 0; i < bpp; i++)
|
||||||
}
|
{
|
||||||
|
*rp = (png_byte)(((int)(*rp) +
|
||||||
|
((int)(*pp++) / 2 )) & 0xff);
|
||||||
|
|
||||||
|
rp++;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Altivec operations require 16-byte aligned data
|
||||||
|
* but input can be unaligned. So we calculate
|
||||||
|
* unaligned part as usual.
|
||||||
|
*/
|
||||||
|
for (i = bpp; i < unaligned_top; i++)
|
||||||
|
{
|
||||||
|
*rp = (png_byte)(((int)(*rp) +
|
||||||
|
(int)(*pp++ + *(rp-bpp)) / 2 ) & 0xff);
|
||||||
|
|
||||||
|
rp++;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Using SIMD while we can */
|
||||||
|
while( istop >= 16 )
|
||||||
|
{
|
||||||
|
for(i=0;i < bpp ; i++)
|
||||||
|
{
|
||||||
|
*rp = (png_byte)(((int)(*rp) +
|
||||||
|
(int)(*pp++ + *(rp-bpp)) / 2 ) & 0xff);
|
||||||
|
|
||||||
|
rp++;
|
||||||
|
}
|
||||||
|
rp -= bpp;
|
||||||
|
pp -= bpp;
|
||||||
|
|
||||||
|
vec_ld_unaligned(pp_vec,pp);
|
||||||
|
rp_vec = vec_ld(0,rp);
|
||||||
|
|
||||||
|
rp_part_vec = vec_perm(rp_vec,zero_vec,VEC_SELECT1_4);
|
||||||
|
pp_part_vec = vec_perm(pp_vec,zero_vec,VEC_AVG_SELECT1_4);
|
||||||
|
avg_vec = vec_avg(rp_part_vec,pp_part_vec);
|
||||||
|
avg_vec = vec_sub(avg_vec, vec_and(vec_xor(rp_part_vec,pp_part_vec),vec_splat_u8(1)));
|
||||||
|
rp_vec = vec_add(rp_vec,avg_vec);
|
||||||
|
|
||||||
|
rp_part_vec = vec_perm(rp_vec,zero_vec,VEC_SELECT2_4);
|
||||||
|
pp_part_vec = vec_perm(pp_vec,zero_vec,VEC_AVG_SELECT2_4);
|
||||||
|
avg_vec = vec_avg(rp_part_vec,pp_part_vec);
|
||||||
|
avg_vec = vec_sub(avg_vec, vec_and(vec_xor(rp_part_vec,pp_part_vec),vec_splat_u8(1)));
|
||||||
|
rp_vec = vec_add(rp_vec,avg_vec);
|
||||||
|
|
||||||
|
rp_part_vec = vec_perm(rp_vec,zero_vec,VEC_SELECT3_4);
|
||||||
|
pp_part_vec = vec_perm(pp_vec,zero_vec,VEC_AVG_SELECT3_4);
|
||||||
|
avg_vec = vec_avg(rp_part_vec,pp_part_vec);
|
||||||
|
avg_vec = vec_sub(avg_vec, vec_and(vec_xor(rp_part_vec,pp_part_vec),vec_splat_u8(1)));
|
||||||
|
rp_vec = vec_add(rp_vec,avg_vec);
|
||||||
|
|
||||||
|
vec_st(rp_vec,0,rp);
|
||||||
|
|
||||||
|
rp += 16;
|
||||||
|
pp += 16;
|
||||||
|
istop -= 16;
|
||||||
|
}
|
||||||
|
|
||||||
|
if(istop % 16 > 0)
|
||||||
|
for (i = 0; i < istop % 16; i++)
|
||||||
|
{
|
||||||
|
*rp = (png_byte)(((int)(*rp) +
|
||||||
|
(int)(*pp++ + *(rp-bpp)) / 2 ) & 0xff);
|
||||||
|
|
||||||
|
rp++;
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
void png_read_filter_row_avg3_vsx(png_row_infop row_info, png_bytep row,
|
void png_read_filter_row_avg3_vsx(png_row_infop row_info, png_bytep row,
|
||||||
png_const_bytep prev_row)
|
png_const_bytep prev_row)
|
||||||
{
|
{
|
||||||
png_size_t i;
|
const unsigned int bpp = 3;
|
||||||
png_bytep rp = row;
|
png_size_t i;
|
||||||
png_const_bytep pp = prev_row;
|
|
||||||
unsigned int bpp = (row_info->pixel_depth + 7) >> 3;
|
|
||||||
png_size_t istop = row_info->rowbytes - bpp;
|
|
||||||
|
|
||||||
for (i = 0; i < bpp; i++)
|
png_size_t unaligned_top = 16 - ((png_size_t)row % 16);
|
||||||
{
|
png_size_t istop = row_info->rowbytes - unaligned_top;
|
||||||
*rp = (png_byte)(((int)(*rp) +
|
|
||||||
((int)(*pp++) / 2 )) & 0xff);
|
|
||||||
|
|
||||||
rp++;
|
png_bytep rp = row;
|
||||||
}
|
png_const_bytep pp = prev_row;
|
||||||
|
|
||||||
for (i = 0; i < istop; i++)
|
vector unsigned char rp_vec;
|
||||||
{
|
vector unsigned char pp_vec;
|
||||||
*rp = (png_byte)(((int)(*rp) +
|
vector unsigned char pp_part_vec;
|
||||||
(int)(*pp++ + *(rp-bpp)) / 2 ) & 0xff);
|
vector unsigned char rp_part_vec;
|
||||||
|
vector unsigned char avg_vec;
|
||||||
|
vector unsigned char zero_vec = {0};
|
||||||
|
|
||||||
|
for (i = 0; i < bpp; i++)
|
||||||
|
{
|
||||||
|
*rp = (png_byte)(((int)(*rp) +
|
||||||
|
((int)(*pp++) / 2 )) & 0xff);
|
||||||
|
|
||||||
|
rp++;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Altivec operations require 16-byte aligned data
|
||||||
|
* but input can be unaligned. So we calculate
|
||||||
|
* unaligned part as usual.
|
||||||
|
*/
|
||||||
|
for (i = bpp; i < unaligned_top; i++)
|
||||||
|
{
|
||||||
|
*rp = (png_byte)(((int)(*rp) +
|
||||||
|
(int)(*pp++ + *(rp-bpp)) / 2 ) & 0xff);
|
||||||
|
|
||||||
|
rp++;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Using SIMD while we can */
|
||||||
|
while( istop >= 16 )
|
||||||
|
{
|
||||||
|
for(i=0;i < bpp ; i++)
|
||||||
|
{
|
||||||
|
*rp = (png_byte)(((int)(*rp) +
|
||||||
|
(int)(*pp++ + *(rp-bpp)) / 2 ) & 0xff);
|
||||||
|
|
||||||
|
rp++;
|
||||||
|
}
|
||||||
|
rp -= bpp;
|
||||||
|
pp -= bpp;
|
||||||
|
|
||||||
|
vec_ld_unaligned(pp_vec,pp);
|
||||||
|
rp_vec = vec_ld(0,rp);
|
||||||
|
|
||||||
|
rp_part_vec = vec_perm(rp_vec,zero_vec,VEC_SELECT1_3);
|
||||||
|
pp_part_vec = vec_perm(pp_vec,zero_vec,VEC_AVG_SELECT1_3);
|
||||||
|
avg_vec = vec_avg(rp_part_vec,pp_part_vec);
|
||||||
|
avg_vec = vec_sub(avg_vec, vec_and(vec_xor(rp_part_vec,pp_part_vec),vec_splat_u8(1)));
|
||||||
|
rp_vec = vec_add(rp_vec,avg_vec);
|
||||||
|
|
||||||
|
rp_part_vec = vec_perm(rp_vec,zero_vec,VEC_SELECT2_3);
|
||||||
|
pp_part_vec = vec_perm(pp_vec,zero_vec,VEC_AVG_SELECT2_3);
|
||||||
|
avg_vec = vec_avg(rp_part_vec,pp_part_vec);
|
||||||
|
avg_vec = vec_sub(avg_vec, vec_and(vec_xor(rp_part_vec,pp_part_vec),vec_splat_u8(1)));
|
||||||
|
rp_vec = vec_add(rp_vec,avg_vec);
|
||||||
|
|
||||||
|
rp_part_vec = vec_perm(rp_vec,zero_vec,VEC_SELECT3_3);
|
||||||
|
pp_part_vec = vec_perm(pp_vec,zero_vec,VEC_AVG_SELECT3_3);
|
||||||
|
avg_vec = vec_avg(rp_part_vec,pp_part_vec);
|
||||||
|
avg_vec = vec_sub(avg_vec, vec_and(vec_xor(rp_part_vec,pp_part_vec),vec_splat_u8(1)));
|
||||||
|
rp_vec = vec_add(rp_vec,avg_vec);
|
||||||
|
|
||||||
|
vec_st(rp_vec,0,rp);
|
||||||
|
|
||||||
|
rp += 16;
|
||||||
|
pp += 16;
|
||||||
|
istop -= 16;
|
||||||
|
/* Since 16 % bpp = 16 % 3 = 1, last element of array must
|
||||||
|
* be proceeded manually
|
||||||
|
*/
|
||||||
|
*(rp - 1) += ((int)(*(pp-1) + *(rp-1-bpp)) / 2 ) & 0xff;
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
if(istop % 16 > 0)
|
||||||
|
for (i = 0; i < istop % 16; i++)
|
||||||
|
{
|
||||||
|
*rp = (png_byte)(((int)(*rp) +
|
||||||
|
(int)(*pp++ + *(rp-bpp)) / 2 ) & 0xff);
|
||||||
|
|
||||||
|
rp++;
|
||||||
|
}
|
||||||
|
|
||||||
rp++;
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
|
||||||
void png_read_filter_row_paeth4_vsx(png_row_infop row_info,
|
void png_read_filter_row_paeth4_vsx(png_row_infop row_info,
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user