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Refactoring

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This commit is contained in:
Vadim Barkov 2017-02-02 22:37:36 +00:00
parent ae15e839d9
commit 58e9d5d59d
1 changed files with 31 additions and 49 deletions
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74
powerpc/filter_vsx_intrinsics.c
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@ -39,18 +39,25 @@
* ( this is taken from ../intel/filter_sse2_intrinsics.c )
*/
#define declare_common_vars(row_info,row,prev_row) \
png_size_t i;\
png_bytep rp = row;\
png_const_bytep pp = prev_row;\
png_size_t unaligned_top = 16 - (((png_size_t)row % 16));\
png_size_t istop;\
if(unaligned_top == 16)\
unaligned_top = 0;\
istop = row_info->rowbytes - unaligned_top;
void png_read_filter_row_up_vsx(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
{
png_size_t i;
png_size_t unaligned_top = 16 - ((png_size_t)row % 16);
png_size_t istop = row_info->rowbytes - unaligned_top;
png_bytep rp = row;
png_const_bytep pp = prev_row;
vector unsigned char rp_vec;
vector unsigned char pp_vec;
declare_common_vars(row_info,row,prev_row)
/* Altivec operations require 16-byte aligned data
* but input can be unaligned. So we calculate
* unaligned part as usual.
@ -120,18 +127,16 @@ void png_read_filter_row_up_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_size_t i;
png_size_t unaligned_top = 16 - ((png_size_t)row % 16);
png_size_t istop = row_info->rowbytes - unaligned_top;
const unsigned int bpp = 4;
png_bytep rp = row + bpp;
vector unsigned char rp_vec;
vector unsigned char part_vec;
vector unsigned char zero_vec = {0};
PNG_UNUSED(prev_row)
declare_common_vars(row_info,row,prev_row)
rp += bpp;
PNG_UNUSED(pp)
/* Altivec operations require 16-byte aligned data
* but input can be unaligned. So we calculate
@ -177,18 +182,15 @@ void png_read_filter_row_sub4_vsx(png_row_infop row_info, png_bytep row,
void png_read_filter_row_sub3_vsx(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
{
png_size_t i;
png_size_t unaligned_top = 16 - ((png_size_t)row % 16);
png_size_t istop = row_info->rowbytes - unaligned_top;
const unsigned int bpp = 3;
png_bytep rp = row + bpp;
vector unsigned char rp_vec;
vector unsigned char part_vec;
vector unsigned char zero_vec = {0};
PNG_UNUSED(prev_row)
declare_common_vars(row_info,row,prev_row)
rp += bpp;
PNG_UNUSED(pp)
/* Altivec operations require 16-byte aligned data
* but input can be unaligned. So we calculate
@ -242,13 +244,6 @@ void png_read_filter_row_avg4_vsx(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
{
const unsigned int bpp = 4;
png_size_t i;
png_size_t unaligned_top = 16 - ((png_size_t)row % 16);
png_size_t istop = row_info->rowbytes - unaligned_top;
png_bytep rp = row;
png_const_bytep pp = prev_row;
vector unsigned char rp_vec;
vector unsigned char pp_vec;
@ -257,6 +252,8 @@ void png_read_filter_row_avg4_vsx(png_row_infop row_info, png_bytep row,
vector unsigned char avg_vec;
vector unsigned char zero_vec = {0};
declare_common_vars(row_info,row,prev_row)
for (i = 0; i < bpp; i++)
{
*rp = (png_byte)(((int)(*rp) +
@ -332,13 +329,6 @@ void png_read_filter_row_avg3_vsx(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
{
const unsigned int bpp = 3;
png_size_t i;
png_size_t unaligned_top = 16 - ((png_size_t)row % 16);
png_size_t istop = row_info->rowbytes - unaligned_top;
png_bytep rp = row;
png_const_bytep pp = prev_row;
vector unsigned char rp_vec;
vector unsigned char pp_vec;
@ -347,6 +337,8 @@ void png_read_filter_row_avg3_vsx(png_row_infop row_info, png_bytep row,
vector unsigned char avg_vec;
vector unsigned char zero_vec = {0};
declare_common_vars(row_info,row,prev_row)
for (i = 0; i < bpp; i++)
{
*rp = (png_byte)(((int)(*rp) +
@ -446,13 +438,6 @@ void png_read_filter_row_paeth4_vsx(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
{
const unsigned int bpp = 4;
png_size_t i;
png_size_t unaligned_top = 16 - ((png_size_t)row % 16);
png_size_t istop = row_info->rowbytes - unaligned_top;
png_bytep rp = row;
png_const_bytep pp = prev_row;
int a, b, c, pa, pb, pc, p;
vector unsigned char rp_vec;
@ -461,6 +446,8 @@ void png_read_filter_row_paeth4_vsx(png_row_infop row_info, png_bytep row,
vector signed char pa_vec,pb_vec,pc_vec,smallest_vec;
vector unsigned char zero_vec = {0};
declare_common_vars(row_info,row,prev_row)
/* Process the first pixel in the row completely (this is the same as 'up'
* because there is only one candidate predictor for the first row).
*/
@ -559,13 +546,6 @@ void png_read_filter_row_paeth3_vsx(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
{
const unsigned int bpp = 3;
png_size_t i;
png_size_t unaligned_top = 16 - ((png_size_t)row % 16);
png_size_t istop = row_info->rowbytes - unaligned_top;
png_bytep rp = row;
png_const_bytep pp = prev_row;
int a, b, c, pa, pb, pc, p;
vector unsigned char rp_vec;
@ -574,6 +554,8 @@ void png_read_filter_row_paeth3_vsx(png_row_infop row_info, png_bytep row,
vector signed char pa_vec,pb_vec,pc_vec,smallest_vec;
vector unsigned char zero_vec = {0};
declare_common_vars(row_info,row,prev_row)
/* Process the first pixel in the row completely (this is the same as 'up'
* because there is only one candidate predictor for the first row).
*/