uint32_t
sse8_16bit_altivec_c(const int16_t * b1,
const int16_t * b2,
const uint32_t stride)
{
register vector signed short b1_vec;
register vector signed short b2_vec;
register vector signed short diff;
register vector signed int sum;
uint32_t result;
/* initialize */
sum = vec_splat_s32(0);
SSE8_16BIT();
SSE8_16BIT();
SSE8_16BIT();
SSE8_16BIT();
SSE8_16BIT();
SSE8_16BIT();
SSE8_16BIT();
SSE8_16BIT();
/* sum the vector */
sum = vec_sums(sum, vec_splat_s32(0));
sum = vec_splat(sum,3);
vec_ste(sum,0,(int*)&result);
/* and return */
return result;
}
static int32_t scalarproduct_int16_altivec(const int16_t * v1, const int16_t * v2, int order, const int shift)
{
int i;
LOAD_ZERO;
register vec_s16 vec1, *pv;
register vec_s32 res = vec_splat_s32(0), t;
register vec_u32 shifts;
int32_t ires;
shifts = zero_u32v;
if(shift & 0x10) shifts = vec_add(shifts, vec_sl(vec_splat_u32(0x08), vec_splat_u32(0x1)));
if(shift & 0x08) shifts = vec_add(shifts, vec_splat_u32(0x08));
if(shift & 0x04) shifts = vec_add(shifts, vec_splat_u32(0x04));
if(shift & 0x02) shifts = vec_add(shifts, vec_splat_u32(0x02));
if(shift & 0x01) shifts = vec_add(shifts, vec_splat_u32(0x01));
for(i = 0; i < order; i += 8){
pv = (vec_s16*)v1;
vec1 = vec_perm(pv[0], pv[1], vec_lvsl(0, v1));
t = vec_msum(vec1, vec_ld(0, v2), zero_s32v);
t = vec_sr(t, shifts);
res = vec_sums(t, res);
v1 += 8;
v2 += 8;
}
res = vec_splat(res, 3);
vec_ste(res, 0, &ires);
return ires;
}
uint32_t
sad8_altivec_c(const uint8_t * cur,
const uint8_t *ref,
const uint32_t stride)
{
uint32_t result = 0;
register vector unsigned int sad;
register vector unsigned char c;
register vector unsigned char r;
/* initialize */
sad = vec_splat_u32(0);
/* Perform sad operations */
SAD8();
SAD8();
SAD8();
SAD8();
SAD8();
SAD8();
SAD8();
SAD8();
/* finish addition, add the first 2 together */
sad = vec_and(sad, (vector unsigned int)vec_pack(vec_splat_u16(-1),vec_splat_u16(0)));
sad = (vector unsigned int)vec_sums((vector signed int)sad, vec_splat_s32(0));
sad = vec_splat(sad,3);
vec_ste(sad, 0, &result);
return result;
}
void x264_sub8x8_dct_dc_altivec( int16_t dct[4], uint8_t *pix1, uint8_t *pix2 )
{
vec_s16_t diff[2];
vec_s32_t sum[2];
vec_s32_t zero32 = vec_splat_s32(0);
vec_u8_t mask = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F };
pix_diff( &pix1[0], &pix2[0], diff, 0 );
pix_diff( &pix1[4*FENC_STRIDE], &pix2[4*FDEC_STRIDE], diff, 1 );
sum[0] = vec_sum4s( diff[0], zero32 );
sum[1] = vec_sum4s( diff[1], zero32 );
diff[0] = vec_packs( sum[0], sum[1] );
sum[0] = vec_sum4s( diff[0], zero32 );
diff[0] = vec_packs( sum[0], zero32 );
diff[1] = vec_vsx_ld( 0, dct );
diff[0] = vec_perm( diff[0], diff[1], mask );
vec_vsx_st( diff[0], 0, dct );
/* 2x2 DC transform */
int d0 = dct[0] + dct[1];
int d1 = dct[2] + dct[3];
int d2 = dct[0] - dct[1];
int d3 = dct[2] - dct[3];
dct[0] = d0 + d1;
dct[1] = d0 - d1;
dct[2] = d2 + d3;
dct[3] = d2 - d3;
}
static int ssd_int8_vs_int16_altivec(const int8_t *pix1, const int16_t *pix2,
int size) {
int i, size16;
vector signed char vpix1;
vector signed short vpix2, vdiff, vpix1l,vpix1h;
union { vector signed int vscore;
int32_t score[4];
} u;
u.vscore = vec_splat_s32(0);
//
//XXX lazy way, fix it later
#define vec_unaligned_load(b) \
vec_perm(vec_ld(0,b),vec_ld(15,b),vec_lvsl(0, b));
size16 = size >> 4;
while(size16) {
// score += (pix1[i]-pix2[i])*(pix1[i]-pix2[i]);
//load pix1 and the first batch of pix2
vpix1 = vec_unaligned_load(pix1);
vpix2 = vec_unaligned_load(pix2);
pix2 += 8;
//unpack
vpix1h = vec_unpackh(vpix1);
vdiff = vec_sub(vpix1h, vpix2);
vpix1l = vec_unpackl(vpix1);
// load another batch from pix2
vpix2 = vec_unaligned_load(pix2);
u.vscore = vec_msum(vdiff, vdiff, u.vscore);
vdiff = vec_sub(vpix1l, vpix2);
u.vscore = vec_msum(vdiff, vdiff, u.vscore);
pix1 += 16;
pix2 += 8;
size16--;
}
u.vscore = vec_sums(u.vscore, vec_splat_s32(0));
size %= 16;
for (i = 0; i < size; i++) {
u.score[3] += (pix1[i]-pix2[i])*(pix1[i]-pix2[i]);
}
return u.score[3];
}
uint32_t
sad16bi_altivec_c(vector unsigned char *cur,
vector unsigned char *ref1,
vector unsigned char *ref2,
uint32_t stride)
{
vector unsigned char t1, t2;
vector unsigned char mask1, mask2;
vector unsigned char sad;
vector unsigned int sum;
uint32_t result;
#ifdef DEBUG
/* print alignment errors if this is on */
if((long)cur & 0xf)
fprintf(stderr, "sad16bi_altivec:incorrect align, cur: %lx\n", (long)cur);
if(stride & 0xf)
fprintf(stderr, "sad16bi_altivec:incorrect align, cur: %lu\n", stride);
#endif
/* Initialisation stuff */
stride >>= 4;
mask1 = vec_lvsl(0, (unsigned char*)ref1);
mask2 = vec_lvsl(0, (unsigned char*)ref2);
sad = vec_splat_u8(0);
sum = (vector unsigned int)sad;
SAD16BI();
SAD16BI();
SAD16BI();
SAD16BI();
SAD16BI();
SAD16BI();
SAD16BI();
SAD16BI();
SAD16BI();
SAD16BI();
SAD16BI();
SAD16BI();
SAD16BI();
SAD16BI();
SAD16BI();
SAD16BI();
sum = (vector unsigned int)vec_sums((vector signed int)sum, vec_splat_s32(0));
sum = vec_splat(sum, 3);
vec_ste(sum, 0, (uint32_t*)&result);
return result;
}
static int ssd_int8_vs_int16_altivec(const int8_t *pix1, const int16_t *pix2,
int size)
{
int i, size16 = size >> 4;
vector signed char vpix1;
vector signed short vpix2, vdiff, vpix1l, vpix1h;
union {
vector signed int vscore;
int32_t score[4];
} u = { .vscore = vec_splat_s32(0) };
while (size16) {
// score += (pix1[i] - pix2[i]) * (pix1[i] - pix2[i]);
// load pix1 and the first batch of pix2
vpix1 = vec_unaligned_load(pix1);
vpix2 = vec_unaligned_load(pix2);
pix2 += 8;
// unpack
vpix1h = vec_unpackh(vpix1);
vdiff = vec_sub(vpix1h, vpix2);
vpix1l = vec_unpackl(vpix1);
// load another batch from pix2
vpix2 = vec_unaligned_load(pix2);
u.vscore = vec_msum(vdiff, vdiff, u.vscore);
vdiff = vec_sub(vpix1l, vpix2);
u.vscore = vec_msum(vdiff, vdiff, u.vscore);
pix1 += 16;
pix2 += 8;
size16--;
}
u.vscore = vec_sums(u.vscore, vec_splat_s32(0));
size %= 16;
for (i = 0; i < size; i++)
u.score[3] += (pix1[i] - pix2[i]) * (pix1[i] - pix2[i]);
return u.score[3];
}
#endif /* HAVE_ALTIVEC */
av_cold void ff_svq1enc_init_ppc(SVQ1EncContext *c)
{
#if HAVE_ALTIVEC
c->ssd_int8_vs_int16 = ssd_int8_vs_int16_altivec;
#endif /* HAVE_ALTIVEC */
}
static av_always_inline
void put_vp8_epel_h_altivec_core(uint8_t *dst, ptrdiff_t dst_stride,
uint8_t *src, ptrdiff_t src_stride,
int h, int mx, int w, int is6tap)
{
LOAD_H_SUBPEL_FILTER(mx-1);
vec_u8 align_vec0, align_vec8, permh0, permh8, filt;
vec_u8 perm_6tap0, perm_6tap8, perml0, perml8;
vec_u8 a, b, pixh, pixl, outer;
vec_s16 f16h, f16l;
vec_s32 filth, filtl;
vec_u8 perm_inner6 = { 1,2,3,4, 2,3,4,5, 3,4,5,6, 4,5,6,7 };
vec_u8 perm_inner4 = { 0,1,2,3, 1,2,3,4, 2,3,4,5, 3,4,5,6 };
vec_u8 perm_inner = is6tap ? perm_inner6 : perm_inner4;
vec_u8 perm_outer = { 4,9, 0,5, 5,10, 1,6, 6,11, 2,7, 7,12, 3,8 };
vec_s32 c64 = vec_sl(vec_splat_s32(1), vec_splat_u32(6));
vec_u16 c7 = vec_splat_u16(7);
align_vec0 = vec_lvsl( -is6tap-1, src);
align_vec8 = vec_lvsl(8-is6tap-1, src);
permh0 = vec_perm(align_vec0, align_vec0, perm_inner);
permh8 = vec_perm(align_vec8, align_vec8, perm_inner);
perm_inner = vec_add(perm_inner, vec_splat_u8(4));
perml0 = vec_perm(align_vec0, align_vec0, perm_inner);
perml8 = vec_perm(align_vec8, align_vec8, perm_inner);
perm_6tap0 = vec_perm(align_vec0, align_vec0, perm_outer);
perm_6tap8 = vec_perm(align_vec8, align_vec8, perm_outer);
while (h --> 0) {
FILTER_H(f16h, 0);
if (w == 16) {
FILTER_H(f16l, 8);
filt = vec_packsu(f16h, f16l);
vec_st(filt, 0, dst);
} else {
filt = vec_packsu(f16h, f16h);
vec_ste((vec_u32)filt, 0, (uint32_t*)dst);
if (w == 8)
vec_ste((vec_u32)filt, 4, (uint32_t*)dst);
}
src += src_stride;
dst += dst_stride;
}
}
static int32_t scalarproduct_int16_altivec(const int16_t *v1, const int16_t *v2,
int order)
{
int i;
LOAD_ZERO;
register vec_s16 vec1;
register vec_s32 res = vec_splat_s32(0), t;
int32_t ires;
for(i = 0; i < order; i += 8){
vec1 = vec_unaligned_load(v1);
t = vec_msum(vec1, vec_ld(0, v2), zero_s32v);
res = vec_sums(t, res);
v1 += 8;
v2 += 8;
}
res = vec_splat(res, 3);
vec_ste(res, 0, &ires);
return ires;
}
scalarproduct_int16_vsx (const signed short *v1, const signed short *v2,
int order)
{
int i;
LOAD_ZERO;
register vec_s16 vec1;
register vec_s32 res = vec_splat_s32 (0), t;
signed int ires;
for (i = 0; i < order; i += 8) {
vec1 = vec_vsx_ld (0, v1);
t = vec_msum (vec1, vec_vsx_ld (0, v2), zero_s32v);
res = vec_sums (t, res);
v1 += 8;
v2 += 8;
}
res = vec_splat (res, 3);
vec_ste (res, 0, &ires);
return ires;
}
static int32_t scalarproduct_int16_altivec(const int16_t *v1, const int16_t *v2,
int order)
{
int i;
LOAD_ZERO;
const vec_s16 *pv;
register vec_s16 vec1;
register vec_s32 res = vec_splat_s32(0), t;
int32_t ires;
for(i = 0; i < order; i += 8){
pv = (const vec_s16*)v1;
vec1 = vec_perm(pv[0], pv[1], vec_lvsl(0, v1));
t = vec_msum(vec1, vec_ld(0, v2), zero_s32v);
res = vec_sums(t, res);
v1 += 8;
v2 += 8;
}
res = vec_splat(res, 3);
vec_ste(res, 0, &ires);
return ires;
}
/** Do inverse transform on 8x4 part of block
*/
static void vc1_inv_trans_8x4_altivec(uint8_t *dest, int stride, int16_t *block)
{
vector signed short src0, src1, src2, src3, src4, src5, src6, src7;
vector signed int s0, s1, s2, s3, s4, s5, s6, s7;
vector signed int s8, s9, sA, sB, sC, sD, sE, sF;
vector signed int t0, t1, t2, t3, t4, t5, t6, t7;
const vector signed int vec_64 = vec_sl(vec_splat_s32(4), vec_splat_u32(4));
const vector unsigned int vec_7 = vec_splat_u32(7);
const vector unsigned int vec_5 = vec_splat_u32(5);
const vector unsigned int vec_4 = vec_splat_u32(4);
const vector signed int vec_4s = vec_splat_s32(4);
const vector unsigned int vec_3 = vec_splat_u32(3);
const vector unsigned int vec_2 = vec_splat_u32(2);
const vector unsigned int vec_1 = vec_splat_u32(1);
vector unsigned char tmp;
vector signed short tmp2, tmp3;
vector unsigned char perm0, perm1, p0, p1, p;
src0 = vec_ld( 0, block);
src1 = vec_ld( 16, block);
src2 = vec_ld( 32, block);
src3 = vec_ld( 48, block);
src4 = vec_ld( 64, block);
src5 = vec_ld( 80, block);
src6 = vec_ld( 96, block);
src7 = vec_ld(112, block);
TRANSPOSE8(src0, src1, src2, src3, src4, src5, src6, src7);
s0 = vec_unpackl(src0);
s1 = vec_unpackl(src1);
s2 = vec_unpackl(src2);
s3 = vec_unpackl(src3);
s4 = vec_unpackl(src4);
s5 = vec_unpackl(src5);
s6 = vec_unpackl(src6);
s7 = vec_unpackl(src7);
s8 = vec_unpackh(src0);
s9 = vec_unpackh(src1);
sA = vec_unpackh(src2);
sB = vec_unpackh(src3);
sC = vec_unpackh(src4);
sD = vec_unpackh(src5);
sE = vec_unpackh(src6);
sF = vec_unpackh(src7);
STEP8(s0, s1, s2, s3, s4, s5, s6, s7, vec_4s);
SHIFT_HOR8(s0, s1, s2, s3, s4, s5, s6, s7);
STEP8(s8, s9, sA, sB, sC, sD, sE, sF, vec_4s);
SHIFT_HOR8(s8, s9, sA, sB, sC, sD, sE, sF);
src0 = vec_pack(s8, s0);
src1 = vec_pack(s9, s1);
src2 = vec_pack(sA, s2);
src3 = vec_pack(sB, s3);
src4 = vec_pack(sC, s4);
src5 = vec_pack(sD, s5);
src6 = vec_pack(sE, s6);
src7 = vec_pack(sF, s7);
TRANSPOSE8(src0, src1, src2, src3, src4, src5, src6, src7);
s0 = vec_unpackh(src0);
s1 = vec_unpackh(src1);
s2 = vec_unpackh(src2);
s3 = vec_unpackh(src3);
s8 = vec_unpackl(src0);
s9 = vec_unpackl(src1);
sA = vec_unpackl(src2);
sB = vec_unpackl(src3);
STEP4(s0, s1, s2, s3, vec_64);
SHIFT_VERT4(s0, s1, s2, s3);
STEP4(s8, s9, sA, sB, vec_64);
SHIFT_VERT4(s8, s9, sA, sB);
src0 = vec_pack(s0, s8);
src1 = vec_pack(s1, s9);
src2 = vec_pack(s2, sA);
src3 = vec_pack(s3, sB);
p0 = vec_lvsl (0, dest);
p1 = vec_lvsl (stride, dest);
p = vec_splat_u8 (-1);
perm0 = vec_mergeh (p, p0);
perm1 = vec_mergeh (p, p1);
#define ADD(dest,src,perm) \
/* *(uint64_t *)&tmp = *(uint64_t *)dest; */ \
tmp = vec_ld (0, dest); \
tmp2 = (vector signed short)vec_perm (tmp, vec_splat_u8(0), perm); \
tmp3 = vec_adds (tmp2, src); \
tmp = vec_packsu (tmp3, tmp3); \
vec_ste ((vector unsigned int)tmp, 0, (unsigned int *)dest); \
vec_ste ((vector unsigned int)tmp, 4, (unsigned int *)dest);
ADD (dest, src0, perm0) dest += stride;
ADD (dest, src1, perm1) dest += stride;
ADD (dest, src2, perm0) dest += stride;
ADD (dest, src3, perm1)
}
/* this code assume that stride % 16 == 0 */
void put_no_rnd_h264_chroma_mc8_altivec(uint8_t * dst, uint8_t * src, int stride, int h, int x, int y) {
signed int ABCD[4] __attribute__((aligned(16))) =
{((8 - x) * (8 - y)),
((x) * (8 - y)),
((8 - x) * (y)),
((x) * (y))};
register int i;
vector unsigned char fperm;
const vector signed int vABCD = vec_ld(0, ABCD);
const vector signed short vA = vec_splat((vector signed short)vABCD, 1);
const vector signed short vB = vec_splat((vector signed short)vABCD, 3);
const vector signed short vC = vec_splat((vector signed short)vABCD, 5);
const vector signed short vD = vec_splat((vector signed short)vABCD, 7);
const vector signed int vzero = vec_splat_s32(0);
const vector signed short v28ss = vec_sub(vec_sl(vec_splat_s16(1),vec_splat_u16(5)),vec_splat_s16(4));
const vector unsigned short v6us = vec_splat_u16(6);
register int loadSecond = (((unsigned long)src) % 16) <= 7 ? 0 : 1;
register int reallyBadAlign = (((unsigned long)src) % 16) == 15 ? 1 : 0;
vector unsigned char vsrcAuc, vsrcBuc, vsrcperm0, vsrcperm1;
vector unsigned char vsrc0uc, vsrc1uc;
vector signed short vsrc0ssH, vsrc1ssH;
vector unsigned char vsrcCuc, vsrc2uc, vsrc3uc;
vector signed short vsrc2ssH, vsrc3ssH, psum;
vector unsigned char vdst, ppsum, fsum;
if (((unsigned long)dst) % 16 == 0) {
fperm = (vector unsigned char)AVV(0x10, 0x11, 0x12, 0x13,
0x14, 0x15, 0x16, 0x17,
0x08, 0x09, 0x0A, 0x0B,
0x0C, 0x0D, 0x0E, 0x0F);
} else {
fperm = (vector unsigned char)AVV(0x00, 0x01, 0x02, 0x03,
0x04, 0x05, 0x06, 0x07,
0x18, 0x19, 0x1A, 0x1B,
0x1C, 0x1D, 0x1E, 0x1F);
}
vsrcAuc = vec_ld(0, src);
if (loadSecond)
vsrcBuc = vec_ld(16, src);
vsrcperm0 = vec_lvsl(0, src);
vsrcperm1 = vec_lvsl(1, src);
vsrc0uc = vec_perm(vsrcAuc, vsrcBuc, vsrcperm0);
if (reallyBadAlign)
vsrc1uc = vsrcBuc;
else
vsrc1uc = vec_perm(vsrcAuc, vsrcBuc, vsrcperm1);
vsrc0ssH = (vector signed short)vec_mergeh((vector unsigned char)vzero,
(vector unsigned char)vsrc0uc);
vsrc1ssH = (vector signed short)vec_mergeh((vector unsigned char)vzero,
(vector unsigned char)vsrc1uc);
if (!loadSecond) {// -> !reallyBadAlign
for (i = 0 ; i < h ; i++) {
vsrcCuc = vec_ld(stride + 0, src);
vsrc2uc = vec_perm(vsrcCuc, vsrcCuc, vsrcperm0);
vsrc3uc = vec_perm(vsrcCuc, vsrcCuc, vsrcperm1);
vsrc2ssH = (vector signed short)vec_mergeh((vector unsigned char)vzero,
(vector unsigned char)vsrc2uc);
vsrc3ssH = (vector signed short)vec_mergeh((vector unsigned char)vzero,
(vector unsigned char)vsrc3uc);
psum = vec_mladd(vA, vsrc0ssH, vec_splat_s16(0));
psum = vec_mladd(vB, vsrc1ssH, psum);
psum = vec_mladd(vC, vsrc2ssH, psum);
psum = vec_mladd(vD, vsrc3ssH, psum);
psum = vec_add(v28ss, psum);
psum = vec_sra(psum, v6us);
vdst = vec_ld(0, dst);
ppsum = (vector unsigned char)vec_packsu(psum, psum);
fsum = vec_perm(vdst, ppsum, fperm);
vec_st(fsum, 0, dst);
vsrc0ssH = vsrc2ssH;
vsrc1ssH = vsrc3ssH;
dst += stride;
src += stride;
}
} else {
vector unsigned char vsrcDuc;
for (i = 0 ; i < h ; i++) {
vsrcCuc = vec_ld(stride + 0, src);
vsrcDuc = vec_ld(stride + 16, src);
vsrc2uc = vec_perm(vsrcCuc, vsrcDuc, vsrcperm0);
if (reallyBadAlign)
vsrc3uc = vsrcDuc;
else
vsrc3uc = vec_perm(vsrcCuc, vsrcDuc, vsrcperm1);
vsrc2ssH = (vector signed short)vec_mergeh((vector unsigned char)vzero,
(vector unsigned char)vsrc2uc);
vsrc3ssH = (vector signed short)vec_mergeh((vector unsigned char)vzero,
(vector unsigned char)vsrc3uc);
psum = vec_mladd(vA, vsrc0ssH, vec_splat_s16(0));
psum = vec_mladd(vB, vsrc1ssH, psum);
psum = vec_mladd(vC, vsrc2ssH, psum);
psum = vec_mladd(vD, vsrc3ssH, psum);
psum = vec_add(v28ss, psum);
psum = vec_sr(psum, v6us);
vdst = vec_ld(0, dst);
ppsum = (vector unsigned char)vec_pack(psum, psum);
fsum = vec_perm(vdst, ppsum, fperm);
vec_st(fsum, 0, dst);
vsrc0ssH = vsrc2ssH;
vsrc1ssH = vsrc3ssH;
dst += stride;
src += stride;
}
}
}
/* this code assume stride % 16 == 0 */
static void PREFIX_h264_qpel16_v_lowpass_altivec(uint8_t * dst, uint8_t * src, int dstStride, int srcStride) {
POWERPC_PERF_DECLARE(PREFIX_h264_qpel16_v_lowpass_num, 1);
POWERPC_PERF_START_COUNT(PREFIX_h264_qpel16_v_lowpass_num, 1);
register int i;
const vector signed int vzero = vec_splat_s32(0);
const vector unsigned char perm = vec_lvsl(0, src);
const vector signed short v20ss = (const vector signed short)AVV(20);
const vector unsigned short v5us = vec_splat_u16(5);
const vector signed short v5ss = vec_splat_s16(5);
const vector signed short v16ss = (const vector signed short)AVV(16);
const vector unsigned char dstperm = vec_lvsr(0, dst);
const vector unsigned char neg1 = (const vector unsigned char)vec_splat_s8(-1);
const vector unsigned char dstmask = vec_perm((const vector unsigned char)vzero, neg1, dstperm);
uint8_t *srcbis = src - (srcStride * 2);
const vector unsigned char srcM2a = vec_ld(0, srcbis);
const vector unsigned char srcM2b = vec_ld(16, srcbis);
const vector unsigned char srcM2 = vec_perm(srcM2a, srcM2b, perm);
srcbis += srcStride;
const vector unsigned char srcM1a = vec_ld(0, srcbis);
const vector unsigned char srcM1b = vec_ld(16, srcbis);
const vector unsigned char srcM1 = vec_perm(srcM1a, srcM1b, perm);
srcbis += srcStride;
const vector unsigned char srcP0a = vec_ld(0, srcbis);
const vector unsigned char srcP0b = vec_ld(16, srcbis);
const vector unsigned char srcP0 = vec_perm(srcP0a, srcP0b, perm);
srcbis += srcStride;
const vector unsigned char srcP1a = vec_ld(0, srcbis);
const vector unsigned char srcP1b = vec_ld(16, srcbis);
const vector unsigned char srcP1 = vec_perm(srcP1a, srcP1b, perm);
srcbis += srcStride;
const vector unsigned char srcP2a = vec_ld(0, srcbis);
const vector unsigned char srcP2b = vec_ld(16, srcbis);
const vector unsigned char srcP2 = vec_perm(srcP2a, srcP2b, perm);
srcbis += srcStride;
vector signed short srcM2ssA = (vector signed short)vec_mergeh((vector unsigned char)vzero, srcM2);
vector signed short srcM2ssB = (vector signed short)vec_mergel((vector unsigned char)vzero, srcM2);
vector signed short srcM1ssA = (vector signed short)vec_mergeh((vector unsigned char)vzero, srcM1);
vector signed short srcM1ssB = (vector signed short)vec_mergel((vector unsigned char)vzero, srcM1);
vector signed short srcP0ssA = (vector signed short)vec_mergeh((vector unsigned char)vzero, srcP0);
vector signed short srcP0ssB = (vector signed short)vec_mergel((vector unsigned char)vzero, srcP0);
vector signed short srcP1ssA = (vector signed short)vec_mergeh((vector unsigned char)vzero, srcP1);
vector signed short srcP1ssB = (vector signed short)vec_mergel((vector unsigned char)vzero, srcP1);
vector signed short srcP2ssA = (vector signed short)vec_mergeh((vector unsigned char)vzero, srcP2);
vector signed short srcP2ssB = (vector signed short)vec_mergel((vector unsigned char)vzero, srcP2);
for (i = 0 ; i < 16 ; i++) {
const vector unsigned char srcP3a = vec_ld(0, srcbis);
const vector unsigned char srcP3b = vec_ld(16, srcbis);
const vector unsigned char srcP3 = vec_perm(srcP3a, srcP3b, perm);
const vector signed short srcP3ssA = (vector signed short)vec_mergeh((vector unsigned char)vzero, srcP3);
const vector signed short srcP3ssB = (vector signed short)vec_mergel((vector unsigned char)vzero, srcP3);
srcbis += srcStride;
const vector signed short sum1A = vec_adds(srcP0ssA, srcP1ssA);
const vector signed short sum1B = vec_adds(srcP0ssB, srcP1ssB);
const vector signed short sum2A = vec_adds(srcM1ssA, srcP2ssA);
const vector signed short sum2B = vec_adds(srcM1ssB, srcP2ssB);
const vector signed short sum3A = vec_adds(srcM2ssA, srcP3ssA);
const vector signed short sum3B = vec_adds(srcM2ssB, srcP3ssB);
srcM2ssA = srcM1ssA;
srcM2ssB = srcM1ssB;
srcM1ssA = srcP0ssA;
srcM1ssB = srcP0ssB;
srcP0ssA = srcP1ssA;
srcP0ssB = srcP1ssB;
srcP1ssA = srcP2ssA;
srcP1ssB = srcP2ssB;
srcP2ssA = srcP3ssA;
srcP2ssB = srcP3ssB;
const vector signed short pp1A = vec_mladd(sum1A, v20ss, v16ss);
const vector signed short pp1B = vec_mladd(sum1B, v20ss, v16ss);
const vector signed short pp2A = vec_mladd(sum2A, v5ss, (vector signed short)vzero);
const vector signed short pp2B = vec_mladd(sum2B, v5ss, (vector signed short)vzero);
const vector signed short pp3A = vec_add(sum3A, pp1A);
const vector signed short pp3B = vec_add(sum3B, pp1B);
const vector signed short psumA = vec_sub(pp3A, pp2A);
const vector signed short psumB = vec_sub(pp3B, pp2B);
const vector signed short sumA = vec_sra(psumA, v5us);
const vector signed short sumB = vec_sra(psumB, v5us);
const vector unsigned char sum = vec_packsu(sumA, sumB);
const vector unsigned char dst1 = vec_ld(0, dst);
const vector unsigned char dst2 = vec_ld(16, dst);
const vector unsigned char vdst = vec_perm(dst1, dst2, vec_lvsl(0, dst));
vector unsigned char fsum;
OP_U8_ALTIVEC(fsum, sum, vdst);
const vector unsigned char rsum = vec_perm(fsum, fsum, dstperm);
const vector unsigned char fdst1 = vec_sel(dst1, rsum, dstmask);
const vector unsigned char fdst2 = vec_sel(rsum, dst2, dstmask);
vec_st(fdst1, 0, dst);
vec_st(fdst2, 16, dst);
dst += dstStride;
}
POWERPC_PERF_STOP_COUNT(PREFIX_h264_qpel16_v_lowpass_num, 1);
}
/* this code assume stride % 16 == 0 *and* tmp is properly aligned */
static void PREFIX_h264_qpel16_hv_lowpass_altivec(uint8_t * dst, int16_t * tmp, uint8_t * src, int dstStride, int tmpStride, int srcStride) {
POWERPC_PERF_DECLARE(PREFIX_h264_qpel16_hv_lowpass_num, 1);
POWERPC_PERF_START_COUNT(PREFIX_h264_qpel16_hv_lowpass_num, 1);
register int i;
const vector signed int vzero = vec_splat_s32(0);
const vector unsigned char permM2 = vec_lvsl(-2, src);
const vector unsigned char permM1 = vec_lvsl(-1, src);
const vector unsigned char permP0 = vec_lvsl(+0, src);
const vector unsigned char permP1 = vec_lvsl(+1, src);
const vector unsigned char permP2 = vec_lvsl(+2, src);
const vector unsigned char permP3 = vec_lvsl(+3, src);
const vector signed short v20ss = (const vector signed short)AVV(20);
const vector unsigned int v10ui = vec_splat_u32(10);
const vector signed short v5ss = vec_splat_s16(5);
const vector signed short v1ss = vec_splat_s16(1);
const vector signed int v512si = (const vector signed int)AVV(512);
const vector unsigned int v16ui = (const vector unsigned int)AVV(16);
register int align = ((((unsigned long)src) - 2) % 16);
src -= (2 * srcStride);
for (i = 0 ; i < 21 ; i ++) {
vector unsigned char srcM2, srcM1, srcP0, srcP1, srcP2, srcP3;
vector unsigned char srcR1 = vec_ld(-2, src);
vector unsigned char srcR2 = vec_ld(14, src);
switch (align) {
default: {
srcM2 = vec_perm(srcR1, srcR2, permM2);
srcM1 = vec_perm(srcR1, srcR2, permM1);
srcP0 = vec_perm(srcR1, srcR2, permP0);
srcP1 = vec_perm(srcR1, srcR2, permP1);
srcP2 = vec_perm(srcR1, srcR2, permP2);
srcP3 = vec_perm(srcR1, srcR2, permP3);
} break;
case 11: {
srcM2 = vec_perm(srcR1, srcR2, permM2);
srcM1 = vec_perm(srcR1, srcR2, permM1);
srcP0 = vec_perm(srcR1, srcR2, permP0);
srcP1 = vec_perm(srcR1, srcR2, permP1);
srcP2 = vec_perm(srcR1, srcR2, permP2);
srcP3 = srcR2;
} break;
case 12: {
vector unsigned char srcR3 = vec_ld(30, src);
srcM2 = vec_perm(srcR1, srcR2, permM2);
srcM1 = vec_perm(srcR1, srcR2, permM1);
srcP0 = vec_perm(srcR1, srcR2, permP0);
srcP1 = vec_perm(srcR1, srcR2, permP1);
srcP2 = srcR2;
srcP3 = vec_perm(srcR2, srcR3, permP3);
} break;
case 13: {
vector unsigned char srcR3 = vec_ld(30, src);
srcM2 = vec_perm(srcR1, srcR2, permM2);
srcM1 = vec_perm(srcR1, srcR2, permM1);
srcP0 = vec_perm(srcR1, srcR2, permP0);
srcP1 = srcR2;
srcP2 = vec_perm(srcR2, srcR3, permP2);
srcP3 = vec_perm(srcR2, srcR3, permP3);
} break;
case 14: {
vector unsigned char srcR3 = vec_ld(30, src);
srcM2 = vec_perm(srcR1, srcR2, permM2);
srcM1 = vec_perm(srcR1, srcR2, permM1);
srcP0 = srcR2;
srcP1 = vec_perm(srcR2, srcR3, permP1);
srcP2 = vec_perm(srcR2, srcR3, permP2);
srcP3 = vec_perm(srcR2, srcR3, permP3);
} break;
case 15: {
vector unsigned char srcR3 = vec_ld(30, src);
srcM2 = vec_perm(srcR1, srcR2, permM2);
srcM1 = srcR2;
srcP0 = vec_perm(srcR2, srcR3, permP0);
srcP1 = vec_perm(srcR2, srcR3, permP1);
srcP2 = vec_perm(srcR2, srcR3, permP2);
srcP3 = vec_perm(srcR2, srcR3, permP3);
} break;
}
const vector signed short srcP0A = (vector signed short)vec_mergeh((vector unsigned char)vzero, srcP0);
const vector signed short srcP0B = (vector signed short)vec_mergel((vector unsigned char)vzero, srcP0);
const vector signed short srcP1A = (vector signed short)vec_mergeh((vector unsigned char)vzero, srcP1);
const vector signed short srcP1B = (vector signed short)vec_mergel((vector unsigned char)vzero, srcP1);
const vector signed short srcP2A = (vector signed short)vec_mergeh((vector unsigned char)vzero, srcP2);
const vector signed short srcP2B = (vector signed short)vec_mergel((vector unsigned char)vzero, srcP2);
const vector signed short srcP3A = (vector signed short)vec_mergeh((vector unsigned char)vzero, srcP3);
const vector signed short srcP3B = (vector signed short)vec_mergel((vector unsigned char)vzero, srcP3);
const vector signed short srcM1A = (vector signed short)vec_mergeh((vector unsigned char)vzero, srcM1);
const vector signed short srcM1B = (vector signed short)vec_mergel((vector unsigned char)vzero, srcM1);
const vector signed short srcM2A = (vector signed short)vec_mergeh((vector unsigned char)vzero, srcM2);
const vector signed short srcM2B = (vector signed short)vec_mergel((vector unsigned char)vzero, srcM2);
const vector signed short sum1A = vec_adds(srcP0A, srcP1A);
const vector signed short sum1B = vec_adds(srcP0B, srcP1B);
const vector signed short sum2A = vec_adds(srcM1A, srcP2A);
const vector signed short sum2B = vec_adds(srcM1B, srcP2B);
const vector signed short sum3A = vec_adds(srcM2A, srcP3A);
const vector signed short sum3B = vec_adds(srcM2B, srcP3B);
const vector signed short pp1A = vec_mladd(sum1A, v20ss, sum3A);
const vector signed short pp1B = vec_mladd(sum1B, v20ss, sum3B);
const vector signed short pp2A = vec_mladd(sum2A, v5ss, (vector signed short)vzero);
const vector signed short pp2B = vec_mladd(sum2B, v5ss, (vector signed short)vzero);
const vector signed short psumA = vec_sub(pp1A, pp2A);
const vector signed short psumB = vec_sub(pp1B, pp2B);
vec_st(psumA, 0, tmp);
vec_st(psumB, 16, tmp);
src += srcStride;
tmp += tmpStride; /* int16_t*, and stride is 16, so it's OK here */
}
const vector unsigned char dstperm = vec_lvsr(0, dst);
const vector unsigned char neg1 = (const vector unsigned char)vec_splat_s8(-1);
const vector unsigned char dstmask = vec_perm((const vector unsigned char)vzero, neg1, dstperm);
const vector unsigned char mperm = (const vector unsigned char)
AVV(0x00, 0x08, 0x01, 0x09, 0x02, 0x0A, 0x03, 0x0B,
0x04, 0x0C, 0x05, 0x0D, 0x06, 0x0E, 0x07, 0x0F);
int16_t *tmpbis = tmp - (tmpStride * 21);
vector signed short tmpM2ssA = vec_ld(0, tmpbis);
vector signed short tmpM2ssB = vec_ld(16, tmpbis);
tmpbis += tmpStride;
vector signed short tmpM1ssA = vec_ld(0, tmpbis);
vector signed short tmpM1ssB = vec_ld(16, tmpbis);
tmpbis += tmpStride;
vector signed short tmpP0ssA = vec_ld(0, tmpbis);
vector signed short tmpP0ssB = vec_ld(16, tmpbis);
tmpbis += tmpStride;
vector signed short tmpP1ssA = vec_ld(0, tmpbis);
vector signed short tmpP1ssB = vec_ld(16, tmpbis);
tmpbis += tmpStride;
vector signed short tmpP2ssA = vec_ld(0, tmpbis);
vector signed short tmpP2ssB = vec_ld(16, tmpbis);
tmpbis += tmpStride;
for (i = 0 ; i < 16 ; i++) {
const vector signed short tmpP3ssA = vec_ld(0, tmpbis);
const vector signed short tmpP3ssB = vec_ld(16, tmpbis);
tmpbis += tmpStride;
const vector signed short sum1A = vec_adds(tmpP0ssA, tmpP1ssA);
const vector signed short sum1B = vec_adds(tmpP0ssB, tmpP1ssB);
const vector signed short sum2A = vec_adds(tmpM1ssA, tmpP2ssA);
const vector signed short sum2B = vec_adds(tmpM1ssB, tmpP2ssB);
const vector signed short sum3A = vec_adds(tmpM2ssA, tmpP3ssA);
const vector signed short sum3B = vec_adds(tmpM2ssB, tmpP3ssB);
tmpM2ssA = tmpM1ssA;
tmpM2ssB = tmpM1ssB;
tmpM1ssA = tmpP0ssA;
tmpM1ssB = tmpP0ssB;
tmpP0ssA = tmpP1ssA;
tmpP0ssB = tmpP1ssB;
tmpP1ssA = tmpP2ssA;
tmpP1ssB = tmpP2ssB;
tmpP2ssA = tmpP3ssA;
tmpP2ssB = tmpP3ssB;
const vector signed int pp1Ae = vec_mule(sum1A, v20ss);
const vector signed int pp1Ao = vec_mulo(sum1A, v20ss);
const vector signed int pp1Be = vec_mule(sum1B, v20ss);
const vector signed int pp1Bo = vec_mulo(sum1B, v20ss);
const vector signed int pp2Ae = vec_mule(sum2A, v5ss);
const vector signed int pp2Ao = vec_mulo(sum2A, v5ss);
const vector signed int pp2Be = vec_mule(sum2B, v5ss);
const vector signed int pp2Bo = vec_mulo(sum2B, v5ss);
const vector signed int pp3Ae = vec_sra((vector signed int)sum3A, v16ui);
const vector signed int pp3Ao = vec_mulo(sum3A, v1ss);
const vector signed int pp3Be = vec_sra((vector signed int)sum3B, v16ui);
const vector signed int pp3Bo = vec_mulo(sum3B, v1ss);
const vector signed int pp1cAe = vec_add(pp1Ae, v512si);
const vector signed int pp1cAo = vec_add(pp1Ao, v512si);
const vector signed int pp1cBe = vec_add(pp1Be, v512si);
const vector signed int pp1cBo = vec_add(pp1Bo, v512si);
const vector signed int pp32Ae = vec_sub(pp3Ae, pp2Ae);
const vector signed int pp32Ao = vec_sub(pp3Ao, pp2Ao);
const vector signed int pp32Be = vec_sub(pp3Be, pp2Be);
const vector signed int pp32Bo = vec_sub(pp3Bo, pp2Bo);
const vector signed int sumAe = vec_add(pp1cAe, pp32Ae);
const vector signed int sumAo = vec_add(pp1cAo, pp32Ao);
const vector signed int sumBe = vec_add(pp1cBe, pp32Be);
const vector signed int sumBo = vec_add(pp1cBo, pp32Bo);
const vector signed int ssumAe = vec_sra(sumAe, v10ui);
const vector signed int ssumAo = vec_sra(sumAo, v10ui);
const vector signed int ssumBe = vec_sra(sumBe, v10ui);
const vector signed int ssumBo = vec_sra(sumBo, v10ui);
const vector signed short ssume = vec_packs(ssumAe, ssumBe);
const vector signed short ssumo = vec_packs(ssumAo, ssumBo);
const vector unsigned char sumv = vec_packsu(ssume, ssumo);
const vector unsigned char sum = vec_perm(sumv, sumv, mperm);
const vector unsigned char dst1 = vec_ld(0, dst);
const vector unsigned char dst2 = vec_ld(16, dst);
const vector unsigned char vdst = vec_perm(dst1, dst2, vec_lvsl(0, dst));
vector unsigned char fsum;
OP_U8_ALTIVEC(fsum, sum, vdst);
const vector unsigned char rsum = vec_perm(fsum, fsum, dstperm);
const vector unsigned char fdst1 = vec_sel(dst1, rsum, dstmask);
const vector unsigned char fdst2 = vec_sel(rsum, dst2, dstmask);
vec_st(fdst1, 0, dst);
vec_st(fdst2, 16, dst);
dst += dstStride;
}
POWERPC_PERF_STOP_COUNT(PREFIX_h264_qpel16_hv_lowpass_num, 1);
}
/* this code assume that stride % 16 == 0 */
void PREFIX_h264_chroma_mc8_altivec(uint8_t * dst, uint8_t * src, int stride, int h, int x, int y) {
POWERPC_PERF_DECLARE(PREFIX_h264_chroma_mc8_num, 1);
POWERPC_PERF_START_COUNT(PREFIX_h264_chroma_mc8_num, 1);
signed int ABCD[4] __attribute__((aligned(16)));
register int i;
ABCD[0] = ((8 - x) * (8 - y));
ABCD[1] = ((x) * (8 - y));
ABCD[2] = ((8 - x) * (y));
ABCD[3] = ((x) * (y));
const vector signed int vABCD = vec_ld(0, ABCD);
const vector signed short vA = vec_splat((vector signed short)vABCD, 1);
const vector signed short vB = vec_splat((vector signed short)vABCD, 3);
const vector signed short vC = vec_splat((vector signed short)vABCD, 5);
const vector signed short vD = vec_splat((vector signed short)vABCD, 7);
const vector signed int vzero = vec_splat_s32(0);
const vector signed short v32ss = (const vector signed short)AVV(32);
const vector unsigned short v6us = vec_splat_u16(6);
vector unsigned char fperm;
if (((unsigned long)dst) % 16 == 0) {
fperm = (vector unsigned char)AVV(0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F);
} else {
fperm = (vector unsigned char)AVV(0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F);
}
register int loadSecond = (((unsigned long)src) % 16) <= 7 ? 0 : 1;
register int reallyBadAlign = (((unsigned long)src) % 16) == 15 ? 1 : 0;
vector unsigned char vsrcAuc;
vector unsigned char vsrcBuc;
vector unsigned char vsrcperm0;
vector unsigned char vsrcperm1;
vsrcAuc = vec_ld(0, src);
if (loadSecond)
vsrcBuc = vec_ld(16, src);
vsrcperm0 = vec_lvsl(0, src);
vsrcperm1 = vec_lvsl(1, src);
vector unsigned char vsrc0uc;
vector unsigned char vsrc1uc;
vsrc0uc = vec_perm(vsrcAuc, vsrcBuc, vsrcperm0);
if (reallyBadAlign)
vsrc1uc = vsrcBuc;
else
vsrc1uc = vec_perm(vsrcAuc, vsrcBuc, vsrcperm1);
vector signed short vsrc0ssH = (vector signed short)vec_mergeh((vector unsigned char)vzero, (vector unsigned char)vsrc0uc);
vector signed short vsrc1ssH = (vector signed short)vec_mergeh((vector unsigned char)vzero, (vector unsigned char)vsrc1uc);
if (!loadSecond) {// -> !reallyBadAlign
for (i = 0 ; i < h ; i++) {
vector unsigned char vsrcCuc;
vsrcCuc = vec_ld(stride + 0, src);
vector unsigned char vsrc2uc;
vector unsigned char vsrc3uc;
vsrc2uc = vec_perm(vsrcCuc, vsrcCuc, vsrcperm0);
vsrc3uc = vec_perm(vsrcCuc, vsrcCuc, vsrcperm1);
vector signed short vsrc2ssH = (vector signed short)vec_mergeh((vector unsigned char)vzero, (vector unsigned char)vsrc2uc);
vector signed short vsrc3ssH = (vector signed short)vec_mergeh((vector unsigned char)vzero, (vector unsigned char)vsrc3uc);
vector signed short psum;
psum = vec_mladd(vA, vsrc0ssH, vec_splat_s16(0));
psum = vec_mladd(vB, vsrc1ssH, psum);
psum = vec_mladd(vC, vsrc2ssH, psum);
psum = vec_mladd(vD, vsrc3ssH, psum);
psum = vec_add(v32ss, psum);
psum = vec_sra(psum, v6us);
vector unsigned char vdst = vec_ld(0, dst);
vector unsigned char ppsum = (vector unsigned char)vec_packsu(psum, psum);
vector unsigned char vfdst = vec_perm(vdst, ppsum, fperm);
vector unsigned char fsum;
OP_U8_ALTIVEC(fsum, vfdst, vdst);
vec_st(fsum, 0, dst);
vsrc0ssH = vsrc2ssH;
vsrc1ssH = vsrc3ssH;
dst += stride;
src += stride;
}
} else {
for (i = 0 ; i < h ; i++) {
vector unsigned char vsrcCuc;
vector unsigned char vsrcDuc;
vsrcCuc = vec_ld(stride + 0, src);
vsrcDuc = vec_ld(stride + 16, src);
vector unsigned char vsrc2uc;
vector unsigned char vsrc3uc;
vsrc2uc = vec_perm(vsrcCuc, vsrcDuc, vsrcperm0);
if (reallyBadAlign)
vsrc3uc = vsrcDuc;
else
vsrc3uc = vec_perm(vsrcCuc, vsrcDuc, vsrcperm1);
vector signed short vsrc2ssH = (vector signed short)vec_mergeh((vector unsigned char)vzero, (vector unsigned char)vsrc2uc);
vector signed short vsrc3ssH = (vector signed short)vec_mergeh((vector unsigned char)vzero, (vector unsigned char)vsrc3uc);
vector signed short psum;
psum = vec_mladd(vA, vsrc0ssH, vec_splat_s16(0));
psum = vec_mladd(vB, vsrc1ssH, psum);
psum = vec_mladd(vC, vsrc2ssH, psum);
psum = vec_mladd(vD, vsrc3ssH, psum);
psum = vec_add(v32ss, psum);
psum = vec_sr(psum, v6us);
vector unsigned char vdst = vec_ld(0, dst);
vector unsigned char ppsum = (vector unsigned char)vec_pack(psum, psum);
vector unsigned char vfdst = vec_perm(vdst, ppsum, fperm);
vector unsigned char fsum;
OP_U8_ALTIVEC(fsum, vfdst, vdst);
vec_st(fsum, 0, dst);
vsrc0ssH = vsrc2ssH;
vsrc1ssH = vsrc3ssH;
dst += stride;
src += stride;
}
}
POWERPC_PERF_STOP_COUNT(PREFIX_h264_chroma_mc8_num, 1);
}
/* this code assume stride % 16 == 0 */
static void PREFIX_h264_qpel16_h_lowpass_altivec(uint8_t * dst, uint8_t * src, int dstStride, int srcStride) {
POWERPC_PERF_DECLARE(PREFIX_h264_qpel16_h_lowpass_num, 1);
POWERPC_PERF_START_COUNT(PREFIX_h264_qpel16_h_lowpass_num, 1);
register int i;
const vector signed int vzero = vec_splat_s32(0);
const vector unsigned char permM2 = vec_lvsl(-2, src);
const vector unsigned char permM1 = vec_lvsl(-1, src);
const vector unsigned char permP0 = vec_lvsl(+0, src);
const vector unsigned char permP1 = vec_lvsl(+1, src);
const vector unsigned char permP2 = vec_lvsl(+2, src);
const vector unsigned char permP3 = vec_lvsl(+3, src);
const vector signed short v20ss = (const vector signed short)AVV(20);
const vector unsigned short v5us = vec_splat_u16(5);
const vector signed short v5ss = vec_splat_s16(5);
const vector signed short v16ss = (const vector signed short)AVV(16);
const vector unsigned char dstperm = vec_lvsr(0, dst);
const vector unsigned char neg1 = (const vector unsigned char)vec_splat_s8(-1);
const vector unsigned char dstmask = vec_perm((const vector unsigned char)vzero, neg1, dstperm);
register int align = ((((unsigned long)src) - 2) % 16);
for (i = 0 ; i < 16 ; i ++) {
vector unsigned char srcM2, srcM1, srcP0, srcP1, srcP2, srcP3;
vector unsigned char srcR1 = vec_ld(-2, src);
vector unsigned char srcR2 = vec_ld(14, src);
switch (align) {
default: {
srcM2 = vec_perm(srcR1, srcR2, permM2);
srcM1 = vec_perm(srcR1, srcR2, permM1);
srcP0 = vec_perm(srcR1, srcR2, permP0);
srcP1 = vec_perm(srcR1, srcR2, permP1);
srcP2 = vec_perm(srcR1, srcR2, permP2);
srcP3 = vec_perm(srcR1, srcR2, permP3);
} break;
case 11: {
srcM2 = vec_perm(srcR1, srcR2, permM2);
srcM1 = vec_perm(srcR1, srcR2, permM1);
srcP0 = vec_perm(srcR1, srcR2, permP0);
srcP1 = vec_perm(srcR1, srcR2, permP1);
srcP2 = vec_perm(srcR1, srcR2, permP2);
srcP3 = srcR2;
} break;
case 12: {
vector unsigned char srcR3 = vec_ld(30, src);
srcM2 = vec_perm(srcR1, srcR2, permM2);
srcM1 = vec_perm(srcR1, srcR2, permM1);
srcP0 = vec_perm(srcR1, srcR2, permP0);
srcP1 = vec_perm(srcR1, srcR2, permP1);
srcP2 = srcR2;
srcP3 = vec_perm(srcR2, srcR3, permP3);
} break;
case 13: {
vector unsigned char srcR3 = vec_ld(30, src);
srcM2 = vec_perm(srcR1, srcR2, permM2);
srcM1 = vec_perm(srcR1, srcR2, permM1);
srcP0 = vec_perm(srcR1, srcR2, permP0);
srcP1 = srcR2;
srcP2 = vec_perm(srcR2, srcR3, permP2);
srcP3 = vec_perm(srcR2, srcR3, permP3);
} break;
case 14: {
vector unsigned char srcR3 = vec_ld(30, src);
srcM2 = vec_perm(srcR1, srcR2, permM2);
srcM1 = vec_perm(srcR1, srcR2, permM1);
srcP0 = srcR2;
srcP1 = vec_perm(srcR2, srcR3, permP1);
srcP2 = vec_perm(srcR2, srcR3, permP2);
srcP3 = vec_perm(srcR2, srcR3, permP3);
} break;
case 15: {
vector unsigned char srcR3 = vec_ld(30, src);
srcM2 = vec_perm(srcR1, srcR2, permM2);
srcM1 = srcR2;
srcP0 = vec_perm(srcR2, srcR3, permP0);
srcP1 = vec_perm(srcR2, srcR3, permP1);
srcP2 = vec_perm(srcR2, srcR3, permP2);
srcP3 = vec_perm(srcR2, srcR3, permP3);
} break;
}
const vector signed short srcP0A = (vector signed short)vec_mergeh((vector unsigned char)vzero, srcP0);
const vector signed short srcP0B = (vector signed short)vec_mergel((vector unsigned char)vzero, srcP0);
const vector signed short srcP1A = (vector signed short)vec_mergeh((vector unsigned char)vzero, srcP1);
const vector signed short srcP1B = (vector signed short)vec_mergel((vector unsigned char)vzero, srcP1);
const vector signed short srcP2A = (vector signed short)vec_mergeh((vector unsigned char)vzero, srcP2);
const vector signed short srcP2B = (vector signed short)vec_mergel((vector unsigned char)vzero, srcP2);
const vector signed short srcP3A = (vector signed short)vec_mergeh((vector unsigned char)vzero, srcP3);
const vector signed short srcP3B = (vector signed short)vec_mergel((vector unsigned char)vzero, srcP3);
const vector signed short srcM1A = (vector signed short)vec_mergeh((vector unsigned char)vzero, srcM1);
const vector signed short srcM1B = (vector signed short)vec_mergel((vector unsigned char)vzero, srcM1);
const vector signed short srcM2A = (vector signed short)vec_mergeh((vector unsigned char)vzero, srcM2);
const vector signed short srcM2B = (vector signed short)vec_mergel((vector unsigned char)vzero, srcM2);
const vector signed short sum1A = vec_adds(srcP0A, srcP1A);
const vector signed short sum1B = vec_adds(srcP0B, srcP1B);
const vector signed short sum2A = vec_adds(srcM1A, srcP2A);
const vector signed short sum2B = vec_adds(srcM1B, srcP2B);
const vector signed short sum3A = vec_adds(srcM2A, srcP3A);
const vector signed short sum3B = vec_adds(srcM2B, srcP3B);
const vector signed short pp1A = vec_mladd(sum1A, v20ss, v16ss);
const vector signed short pp1B = vec_mladd(sum1B, v20ss, v16ss);
const vector signed short pp2A = vec_mladd(sum2A, v5ss, (vector signed short)vzero);
const vector signed short pp2B = vec_mladd(sum2B, v5ss, (vector signed short)vzero);
const vector signed short pp3A = vec_add(sum3A, pp1A);
const vector signed short pp3B = vec_add(sum3B, pp1B);
const vector signed short psumA = vec_sub(pp3A, pp2A);
const vector signed short psumB = vec_sub(pp3B, pp2B);
const vector signed short sumA = vec_sra(psumA, v5us);
const vector signed short sumB = vec_sra(psumB, v5us);
const vector unsigned char sum = vec_packsu(sumA, sumB);
const vector unsigned char dst1 = vec_ld(0, dst);
const vector unsigned char dst2 = vec_ld(16, dst);
const vector unsigned char vdst = vec_perm(dst1, dst2, vec_lvsl(0, dst));
vector unsigned char fsum;
OP_U8_ALTIVEC(fsum, sum, vdst);
const vector unsigned char rsum = vec_perm(fsum, fsum, dstperm);
const vector unsigned char fdst1 = vec_sel(dst1, rsum, dstmask);
const vector unsigned char fdst2 = vec_sel(rsum, dst2, dstmask);
vec_st(fdst1, 0, dst);
vec_st(fdst2, 16, dst);
src += srcStride;
dst += dstStride;
}
POWERPC_PERF_STOP_COUNT(PREFIX_h264_qpel16_h_lowpass_num, 1);
}
int field_dct_best_altivec(FIELD_DCT_BEST_PDECL)
{
/*
* calculate prediction error (cur-pred) for top (blk0)
* and bottom field (blk1)
*/
double r, d;
int sumtop, sumbot, sumsqtop, sumsqbot, sumbottop;
int topvar, botvar;
int whichdct;
int i;
vector unsigned char ct, pt, cb, pb;
vector unsigned char *ctp, *ptp, *cbp, *pbp;
unsigned int offset, stride2;
vector signed short cur, pred;
vector signed short dift, difb;
vector signed int vsumtop, vsumbot, vsumsqtop, vsumsqbot, vsumbottop;
vector signed int t0, t1, t2, t3;
vector signed int zero;
union {
vector signed int v;
struct {
signed int top;
signed int bot;
signed int sqtop;
signed int sqbot;
} sum;
struct {
signed int pad[3];
signed int sum;
} bottop;
} vo;
AMBER_START;
#ifdef ALTIVEC_VERIFY
if (NOT_VECTOR_ALIGNED(cur_lum_mb))
mjpeg_error_exit1("field_dct_best: cur_lum_mb %% 16 != 0, (%d)\n",
cur_lum_mb);
if (NOT_VECTOR_ALIGNED(pred_lum_mb))
mjpeg_error_exit1("field_dct_best: pred_lum_mb %% 16 != 0, (%d)\n",
pred_lum_mb);
if (NOT_VECTOR_ALIGNED(stride))
mjpeg_error_exit1("field_dct_best: stride %% 16 != 0, (%d)\n", stride);
#endif
zero = vec_splat_s32(0);
vsumtop = vec_splat_s32(0);
vsumbot = vec_splat_s32(0);
vsumsqtop = vec_splat_s32(0);
vsumsqbot = vec_splat_s32(0);
vsumbottop = vec_splat_s32(0);
ctp = (vector unsigned char*) cur_lum_mb;
ptp = (vector unsigned char*) pred_lum_mb;
cbp = (vector unsigned char*)(cur_lum_mb + stride);
pbp = (vector unsigned char*)(pred_lum_mb + stride);
offset = 0;
stride2 = stride << 1;
#if 1
ct = vec_ld(offset, ctp);
pt = vec_ld(offset, ptp);
cb = vec_ld(offset, cbp);
pb = vec_ld(offset, pbp);
i = 16/2 - 1;
do {
cur = (vector signed short)vec_mergeh(vu8(zero), ct);
pred = (vector signed short)vec_mergeh(vu8(zero), pt);
dift = vec_sub(cur, pred);
cur = (vector signed short)vec_mergeh(vu8(zero), cb);
pred = (vector signed short)vec_mergeh(vu8(zero), pb);
difb = vec_sub(cur, pred);
vsumtop = vec_sum4s(dift, vsumtop);
vsumbot = vec_sum4s(difb, vsumbot);
vsumsqtop = vec_msum(dift, dift, vsumsqtop);
vsumsqbot = vec_msum(difb, difb, vsumsqbot);
vsumbottop = vec_msum(dift, difb, vsumbottop);
cur = (vector signed short)vec_mergel(vu8(zero), ct);
pred = (vector signed short)vec_mergel(vu8(zero), pt);
dift = vec_sub(cur, pred);
cur = (vector signed short)vec_mergel(vu8(zero), cb);
pred = (vector signed short)vec_mergel(vu8(zero), pb);
difb = vec_sub(cur, pred);
offset += stride2;
ct = vec_ld(offset, ctp);
pt = vec_ld(offset, ptp);
cb = vec_ld(offset, cbp);
pb = vec_ld(offset, pbp);
vsumtop = vec_sum4s(dift, vsumtop);
vsumbot = vec_sum4s(difb, vsumbot);
vsumsqtop = vec_msum(dift, dift, vsumsqtop);
vsumsqbot = vec_msum(difb, difb, vsumsqbot);
vsumbottop = vec_msum(dift, difb, vsumbottop);
} while (--i);
cur = (vector signed short)vec_mergeh(vu8(zero), ct);
pred = (vector signed short)vec_mergeh(vu8(zero), pt);
dift = vec_sub(cur, pred);
cur = (vector signed short)vec_mergeh(vu8(zero), cb);
pred = (vector signed short)vec_mergeh(vu8(zero), pb);
difb = vec_sub(cur, pred);
vsumtop = vec_sum4s(dift, vsumtop);
vsumbot = vec_sum4s(difb, vsumbot);
vsumsqtop = vec_msum(dift, dift, vsumsqtop);
vsumsqbot = vec_msum(difb, difb, vsumsqbot);
vsumbottop = vec_msum(dift, difb, vsumbottop);
cur = (vector signed short)vec_mergel(vu8(zero), ct);
pred = (vector signed short)vec_mergel(vu8(zero), pt);
dift = vec_sub(cur, pred);
cur = (vector signed short)vec_mergel(vu8(zero), cb);
pred = (vector signed short)vec_mergel(vu8(zero), pb);
difb = vec_sub(cur, pred);
vsumtop = vec_sum4s(dift, vsumtop);
vsumbot = vec_sum4s(difb, vsumbot);
vsumsqtop = vec_msum(dift, dift, vsumsqtop);
vsumsqbot = vec_msum(difb, difb, vsumsqbot);
vsumbottop = vec_msum(dift, difb, vsumbottop);
#else
for (i = 0; i < 16/2; i++) { /* {{{ */
ct = vec_ld(offset, ctp);
pt = vec_ld(offset, ptp);
cb = vec_ld(offset, cbp);
pb = vec_ld(offset, pbp);
cur = (vector signed short)vec_mergeh(vu8(zero), ct);
pred = (vector signed short)vec_mergeh(vu8(zero), pt);
dift = vec_sub(cur, pred);
cur = (vector signed short)vec_mergeh(vu8(zero), cb);
pred = (vector signed short)vec_mergeh(vu8(zero), pb);
difb = vec_sub(cur, pred);
vsumtop = vec_sum4s(dift, vsumtop);
vsumbot = vec_sum4s(difb, vsumbot);
vsumsqtop = vec_msum(dift, dift, vsumsqtop);
vsumsqbot = vec_msum(difb, difb, vsumsqbot);
vsumbottop = vec_msum(dift, difb, vsumbottop);
cur = (vector signed short)vec_mergel(vu8(zero), ct);
pred = (vector signed short)vec_mergel(vu8(zero), pt);
dift = vec_sub(cur, pred);
cur = (vector signed short)vec_mergel(vu8(zero), cb);
pred = (vector signed short)vec_mergel(vu8(zero), pb);
difb = vec_sub(cur, pred);
vsumtop = vec_sum4s(dift, vsumtop);
vsumbot = vec_sum4s(difb, vsumbot);
vsumsqtop = vec_msum(dift, dift, vsumsqtop);
vsumsqbot = vec_msum(difb, difb, vsumsqbot);
vsumbottop = vec_msum(dift, difb, vsumbottop);
offset += stride2;
} /* }}} */
#endif
/* transpose [sumtop, sumbot, sumsqtop, sumsqbot] {{{ */
t0 = vec_mergel(vsumtop, vsumsqtop);
t1 = vec_mergeh(vsumtop, vsumsqtop);
t2 = vec_mergel(vsumbot, vsumsqbot);
t3 = vec_mergeh(vsumbot, vsumsqbot);
vsumtop = vec_mergeh(t1, t3);
vsumbot = vec_mergel(t1, t3);
vsumsqtop = vec_mergeh(t0, t2);
vsumsqbot = vec_mergel(t0, t2);
/* }}} */
/* sum final values for sumtop, sumbot, sumsqtop, sumsqbot */
vsumtop = vec_add(vsumtop, vsumbot);
vsumsqtop = vec_add(vsumsqtop, vsumsqbot);
vo.v = vec_add(vsumtop, vsumsqtop);
sumtop = vo.sum.top;
sumbot = vo.sum.bot;
sumsqtop = vo.sum.sqtop;
sumsqbot = vo.sum.sqbot;
vsumbottop = vec_sums(vsumbottop, zero);
vo.v = vsumbottop;
/* Calculate Variances top and bottom. If they're of similar
sign estimate correlation if its good use frame DCT otherwise
use field.
*/
whichdct = FIELD_DCT;
r = 0.0;
topvar = sumsqtop-sumtop*sumtop/128;
botvar = sumsqbot-sumbot*sumbot/128;
if (!((topvar > 0) ^ (botvar > 0)))
{
sumbottop = vo.bottop.sum;
d = ((double) topvar) * ((double)botvar);
r = (sumbottop-(sumtop*sumbot)/128);
if (r > (0.5 * sqrt(d)))
whichdct = FRAME_DCT;
}
AMBER_STOP;
return whichdct;
}
uint32_t
dev16_altivec_c(vector unsigned char *cur,
uint32_t stride)
{
vector unsigned char t2, t3, mn;
vector unsigned int mean, dev;
vector unsigned int sumdiffs;
vector unsigned char *ptr;
uint32_t result;
#ifdef DEBUG
/* print alignment errors if DEBUG is on */
if(((unsigned long)cur) & 0x7)
fprintf(stderr, "dev16_altivec:incorrect align, cur: %lx\n", (long)cur);
if(stride & 0xf)
fprintf(stderr, "dev16_altivec:incorrect align, stride: %lu\n", stride);
#endif
dev = mean = vec_splat_u32(0);
stride >>= 4;
/* set pointer to iterate through cur */
ptr = cur;
MEAN16();
MEAN16();
MEAN16();
MEAN16();
MEAN16();
MEAN16();
MEAN16();
MEAN16();
MEAN16();
MEAN16();
MEAN16();
MEAN16();
MEAN16();
MEAN16();
MEAN16();
MEAN16();
/* Add all together in sumdiffs */
sumdiffs = (vector unsigned int)vec_sums((vector signed int) mean, vec_splat_s32(0));
/* teilen durch 16 * 16 */
mn = vec_perm((vector unsigned char)sumdiffs, (vector unsigned char)sumdiffs, vec_splat_u8(14));
/* set pointer to iterate through cur */
ptr = cur;
DEV16();
DEV16();
DEV16();
DEV16();
DEV16();
DEV16();
DEV16();
DEV16();
DEV16();
DEV16();
DEV16();
DEV16();
DEV16();
DEV16();
DEV16();
DEV16();
/* sum all parts of difference into one 32 bit quantity */
sumdiffs = (vector unsigned int)vec_sums((vector signed int) dev, vec_splat_s32(0));
/* copy vector sum into unaligned result */
sumdiffs = vec_splat(sumdiffs, 3);
vec_ste(sumdiffs, 0, (uint32_t*) &result);
return result;
}
/** Do inverse transform on 8x8 block
*/
static void vc1_inv_trans_8x8_altivec(int16_t block[64])
{
vector signed short src0, src1, src2, src3, src4, src5, src6, src7;
vector signed int s0, s1, s2, s3, s4, s5, s6, s7;
vector signed int s8, s9, sA, sB, sC, sD, sE, sF;
vector signed int t0, t1, t2, t3, t4, t5, t6, t7;
const vector signed int vec_64 = vec_sl(vec_splat_s32(4), vec_splat_u32(4));
const vector unsigned int vec_7 = vec_splat_u32(7);
const vector unsigned int vec_4 = vec_splat_u32(4);
const vector signed int vec_4s = vec_splat_s32(4);
const vector unsigned int vec_3 = vec_splat_u32(3);
const vector unsigned int vec_2 = vec_splat_u32(2);
const vector signed int vec_1s = vec_splat_s32(1);
const vector unsigned int vec_1 = vec_splat_u32(1);
src0 = vec_ld( 0, block);
src1 = vec_ld( 16, block);
src2 = vec_ld( 32, block);
src3 = vec_ld( 48, block);
src4 = vec_ld( 64, block);
src5 = vec_ld( 80, block);
src6 = vec_ld( 96, block);
src7 = vec_ld(112, block);
s0 = vec_unpackl(src0);
s1 = vec_unpackl(src1);
s2 = vec_unpackl(src2);
s3 = vec_unpackl(src3);
s4 = vec_unpackl(src4);
s5 = vec_unpackl(src5);
s6 = vec_unpackl(src6);
s7 = vec_unpackl(src7);
s8 = vec_unpackh(src0);
s9 = vec_unpackh(src1);
sA = vec_unpackh(src2);
sB = vec_unpackh(src3);
sC = vec_unpackh(src4);
sD = vec_unpackh(src5);
sE = vec_unpackh(src6);
sF = vec_unpackh(src7);
STEP8(s0, s1, s2, s3, s4, s5, s6, s7, vec_4s);
SHIFT_HOR8(s0, s1, s2, s3, s4, s5, s6, s7);
STEP8(s8, s9, sA, sB, sC, sD, sE, sF, vec_4s);
SHIFT_HOR8(s8, s9, sA, sB, sC, sD, sE, sF);
src0 = vec_pack(s8, s0);
src1 = vec_pack(s9, s1);
src2 = vec_pack(sA, s2);
src3 = vec_pack(sB, s3);
src4 = vec_pack(sC, s4);
src5 = vec_pack(sD, s5);
src6 = vec_pack(sE, s6);
src7 = vec_pack(sF, s7);
TRANSPOSE8(src0, src1, src2, src3, src4, src5, src6, src7);
s0 = vec_unpackl(src0);
s1 = vec_unpackl(src1);
s2 = vec_unpackl(src2);
s3 = vec_unpackl(src3);
s4 = vec_unpackl(src4);
s5 = vec_unpackl(src5);
s6 = vec_unpackl(src6);
s7 = vec_unpackl(src7);
s8 = vec_unpackh(src0);
s9 = vec_unpackh(src1);
sA = vec_unpackh(src2);
sB = vec_unpackh(src3);
sC = vec_unpackh(src4);
sD = vec_unpackh(src5);
sE = vec_unpackh(src6);
sF = vec_unpackh(src7);
STEP8(s0, s1, s2, s3, s4, s5, s6, s7, vec_64);
SHIFT_VERT8(s0, s1, s2, s3, s4, s5, s6, s7);
STEP8(s8, s9, sA, sB, sC, sD, sE, sF, vec_64);
SHIFT_VERT8(s8, s9, sA, sB, sC, sD, sE, sF);
src0 = vec_pack(s8, s0);
src1 = vec_pack(s9, s1);
src2 = vec_pack(sA, s2);
src3 = vec_pack(sB, s3);
src4 = vec_pack(sC, s4);
src5 = vec_pack(sD, s5);
src6 = vec_pack(sE, s6);
src7 = vec_pack(sF, s7);
vec_st(src0, 0, block);
vec_st(src1, 16, block);
vec_st(src2, 32, block);
vec_st(src3, 48, block);
vec_st(src4, 64, block);
vec_st(src5, 80, block);
vec_st(src6, 96, block);
vec_st(src7,112, block);
}
static void PREFIX_h264_qpel16_hv_lowpass_altivec(uint8_t * dst, int16_t * tmp, uint8_t * src, int dstStride, int tmpStride, int srcStride) {
register int i;
LOAD_ZERO;
const vec_u8 permM2 = vec_lvsl(-2, src);
const vec_u8 permM1 = vec_lvsl(-1, src);
const vec_u8 permP0 = vec_lvsl(+0, src);
const vec_u8 permP1 = vec_lvsl(+1, src);
const vec_u8 permP2 = vec_lvsl(+2, src);
const vec_u8 permP3 = vec_lvsl(+3, src);
const vec_s16 v20ss = vec_sl(vec_splat_s16(5),vec_splat_u16(2));
const vec_u32 v10ui = vec_splat_u32(10);
const vec_s16 v5ss = vec_splat_s16(5);
const vec_s16 v1ss = vec_splat_s16(1);
const vec_s32 v512si = vec_sl(vec_splat_s32(1),vec_splat_u32(9));
const vec_u32 v16ui = vec_sl(vec_splat_u32(1),vec_splat_u32(4));
register int align = ((((unsigned long)src) - 2) % 16);
vec_s16 srcP0A, srcP0B, srcP1A, srcP1B,
srcP2A, srcP2B, srcP3A, srcP3B,
srcM1A, srcM1B, srcM2A, srcM2B,
sum1A, sum1B, sum2A, sum2B, sum3A, sum3B,
pp1A, pp1B, pp2A, pp2B, psumA, psumB;
const vec_u8 mperm = (const vec_u8)
{0x00, 0x08, 0x01, 0x09, 0x02, 0x0A, 0x03, 0x0B,
0x04, 0x0C, 0x05, 0x0D, 0x06, 0x0E, 0x07, 0x0F};
int16_t *tmpbis = tmp;
vec_s16 tmpM1ssA, tmpM1ssB, tmpM2ssA, tmpM2ssB,
tmpP0ssA, tmpP0ssB, tmpP1ssA, tmpP1ssB,
tmpP2ssA, tmpP2ssB;
vec_s32 pp1Ae, pp1Ao, pp1Be, pp1Bo, pp2Ae, pp2Ao, pp2Be, pp2Bo,
pp3Ae, pp3Ao, pp3Be, pp3Bo, pp1cAe, pp1cAo, pp1cBe, pp1cBo,
pp32Ae, pp32Ao, pp32Be, pp32Bo, sumAe, sumAo, sumBe, sumBo,
ssumAe, ssumAo, ssumBe, ssumBo;
vec_u8 fsum, sumv, sum;
vec_s16 ssume, ssumo;
src -= (2 * srcStride);
for (i = 0 ; i < 21 ; i ++) {
vec_u8 srcM2, srcM1, srcP0, srcP1, srcP2, srcP3;
vec_u8 srcR1 = vec_ld(-2, src);
vec_u8 srcR2 = vec_ld(14, src);
switch (align) {
default: {
srcM2 = vec_perm(srcR1, srcR2, permM2);
srcM1 = vec_perm(srcR1, srcR2, permM1);
srcP0 = vec_perm(srcR1, srcR2, permP0);
srcP1 = vec_perm(srcR1, srcR2, permP1);
srcP2 = vec_perm(srcR1, srcR2, permP2);
srcP3 = vec_perm(srcR1, srcR2, permP3);
} break;
case 11: {
srcM2 = vec_perm(srcR1, srcR2, permM2);
srcM1 = vec_perm(srcR1, srcR2, permM1);
srcP0 = vec_perm(srcR1, srcR2, permP0);
srcP1 = vec_perm(srcR1, srcR2, permP1);
srcP2 = vec_perm(srcR1, srcR2, permP2);
srcP3 = srcR2;
} break;
case 12: {
vec_u8 srcR3 = vec_ld(30, src);
srcM2 = vec_perm(srcR1, srcR2, permM2);
srcM1 = vec_perm(srcR1, srcR2, permM1);
srcP0 = vec_perm(srcR1, srcR2, permP0);
srcP1 = vec_perm(srcR1, srcR2, permP1);
srcP2 = srcR2;
srcP3 = vec_perm(srcR2, srcR3, permP3);
} break;
case 13: {
vec_u8 srcR3 = vec_ld(30, src);
srcM2 = vec_perm(srcR1, srcR2, permM2);
srcM1 = vec_perm(srcR1, srcR2, permM1);
srcP0 = vec_perm(srcR1, srcR2, permP0);
srcP1 = srcR2;
srcP2 = vec_perm(srcR2, srcR3, permP2);
srcP3 = vec_perm(srcR2, srcR3, permP3);
} break;
case 14: {
vec_u8 srcR3 = vec_ld(30, src);
srcM2 = vec_perm(srcR1, srcR2, permM2);
srcM1 = vec_perm(srcR1, srcR2, permM1);
srcP0 = srcR2;
srcP1 = vec_perm(srcR2, srcR3, permP1);
srcP2 = vec_perm(srcR2, srcR3, permP2);
srcP3 = vec_perm(srcR2, srcR3, permP3);
} break;
case 15: {
vec_u8 srcR3 = vec_ld(30, src);
srcM2 = vec_perm(srcR1, srcR2, permM2);
srcM1 = srcR2;
srcP0 = vec_perm(srcR2, srcR3, permP0);
srcP1 = vec_perm(srcR2, srcR3, permP1);
srcP2 = vec_perm(srcR2, srcR3, permP2);
srcP3 = vec_perm(srcR2, srcR3, permP3);
} break;
}
srcP0A = (vec_s16) vec_mergeh(zero_u8v, srcP0);
srcP0B = (vec_s16) vec_mergel(zero_u8v, srcP0);
srcP1A = (vec_s16) vec_mergeh(zero_u8v, srcP1);
srcP1B = (vec_s16) vec_mergel(zero_u8v, srcP1);
srcP2A = (vec_s16) vec_mergeh(zero_u8v, srcP2);
srcP2B = (vec_s16) vec_mergel(zero_u8v, srcP2);
srcP3A = (vec_s16) vec_mergeh(zero_u8v, srcP3);
srcP3B = (vec_s16) vec_mergel(zero_u8v, srcP3);
srcM1A = (vec_s16) vec_mergeh(zero_u8v, srcM1);
srcM1B = (vec_s16) vec_mergel(zero_u8v, srcM1);
srcM2A = (vec_s16) vec_mergeh(zero_u8v, srcM2);
srcM2B = (vec_s16) vec_mergel(zero_u8v, srcM2);
sum1A = vec_adds(srcP0A, srcP1A);
sum1B = vec_adds(srcP0B, srcP1B);
sum2A = vec_adds(srcM1A, srcP2A);
sum2B = vec_adds(srcM1B, srcP2B);
sum3A = vec_adds(srcM2A, srcP3A);
sum3B = vec_adds(srcM2B, srcP3B);
pp1A = vec_mladd(sum1A, v20ss, sum3A);
pp1B = vec_mladd(sum1B, v20ss, sum3B);
pp2A = vec_mladd(sum2A, v5ss, zero_s16v);
pp2B = vec_mladd(sum2B, v5ss, zero_s16v);
psumA = vec_sub(pp1A, pp2A);
psumB = vec_sub(pp1B, pp2B);
vec_st(psumA, 0, tmp);
vec_st(psumB, 16, tmp);
src += srcStride;
tmp += tmpStride; /* int16_t*, and stride is 16, so it's OK here */
}
tmpM2ssA = vec_ld(0, tmpbis);
tmpM2ssB = vec_ld(16, tmpbis);
tmpbis += tmpStride;
tmpM1ssA = vec_ld(0, tmpbis);
tmpM1ssB = vec_ld(16, tmpbis);
tmpbis += tmpStride;
tmpP0ssA = vec_ld(0, tmpbis);
tmpP0ssB = vec_ld(16, tmpbis);
tmpbis += tmpStride;
tmpP1ssA = vec_ld(0, tmpbis);
tmpP1ssB = vec_ld(16, tmpbis);
tmpbis += tmpStride;
tmpP2ssA = vec_ld(0, tmpbis);
tmpP2ssB = vec_ld(16, tmpbis);
tmpbis += tmpStride;
for (i = 0 ; i < 16 ; i++) {
const vec_s16 tmpP3ssA = vec_ld(0, tmpbis);
const vec_s16 tmpP3ssB = vec_ld(16, tmpbis);
const vec_s16 sum1A = vec_adds(tmpP0ssA, tmpP1ssA);
const vec_s16 sum1B = vec_adds(tmpP0ssB, tmpP1ssB);
const vec_s16 sum2A = vec_adds(tmpM1ssA, tmpP2ssA);
const vec_s16 sum2B = vec_adds(tmpM1ssB, tmpP2ssB);
const vec_s16 sum3A = vec_adds(tmpM2ssA, tmpP3ssA);
const vec_s16 sum3B = vec_adds(tmpM2ssB, tmpP3ssB);
tmpbis += tmpStride;
tmpM2ssA = tmpM1ssA;
tmpM2ssB = tmpM1ssB;
tmpM1ssA = tmpP0ssA;
tmpM1ssB = tmpP0ssB;
tmpP0ssA = tmpP1ssA;
tmpP0ssB = tmpP1ssB;
tmpP1ssA = tmpP2ssA;
tmpP1ssB = tmpP2ssB;
tmpP2ssA = tmpP3ssA;
tmpP2ssB = tmpP3ssB;
pp1Ae = vec_mule(sum1A, v20ss);
pp1Ao = vec_mulo(sum1A, v20ss);
pp1Be = vec_mule(sum1B, v20ss);
pp1Bo = vec_mulo(sum1B, v20ss);
pp2Ae = vec_mule(sum2A, v5ss);
pp2Ao = vec_mulo(sum2A, v5ss);
pp2Be = vec_mule(sum2B, v5ss);
pp2Bo = vec_mulo(sum2B, v5ss);
pp3Ae = vec_sra((vec_s32)sum3A, v16ui);
pp3Ao = vec_mulo(sum3A, v1ss);
pp3Be = vec_sra((vec_s32)sum3B, v16ui);
pp3Bo = vec_mulo(sum3B, v1ss);
pp1cAe = vec_add(pp1Ae, v512si);
pp1cAo = vec_add(pp1Ao, v512si);
pp1cBe = vec_add(pp1Be, v512si);
pp1cBo = vec_add(pp1Bo, v512si);
pp32Ae = vec_sub(pp3Ae, pp2Ae);
pp32Ao = vec_sub(pp3Ao, pp2Ao);
pp32Be = vec_sub(pp3Be, pp2Be);
pp32Bo = vec_sub(pp3Bo, pp2Bo);
sumAe = vec_add(pp1cAe, pp32Ae);
sumAo = vec_add(pp1cAo, pp32Ao);
sumBe = vec_add(pp1cBe, pp32Be);
sumBo = vec_add(pp1cBo, pp32Bo);
ssumAe = vec_sra(sumAe, v10ui);
ssumAo = vec_sra(sumAo, v10ui);
ssumBe = vec_sra(sumBe, v10ui);
ssumBo = vec_sra(sumBo, v10ui);
ssume = vec_packs(ssumAe, ssumBe);
ssumo = vec_packs(ssumAo, ssumBo);
sumv = vec_packsu(ssume, ssumo);
sum = vec_perm(sumv, sumv, mperm);
ASSERT_ALIGNED(dst);
OP_U8_ALTIVEC(fsum, sum, vec_ld(0, dst));
vec_st(fsum, 0, dst);
dst += dstStride;
}
}
void iquant_intra_m2_altivec(IQUANT_INTRA_PDECL)
{
int i;
vector signed short vsrc;
uint16_t *qmat;
vector unsigned short vqmat;
vector unsigned short vmquant;
vector bool short ltzero;
vector signed short val, t0;
vector signed short zero;
vector unsigned int four;
vector signed short min, max;
vector signed int vsum;
int sum;
int offset, offset2;
int16_t dst0;
union {
vector unsigned short vu16;
unsigned short mquant;
vector signed int vs32;
struct {
signed int pad[3];
signed int sum;
} s;
} vu;
#ifdef ALTIVEC_DST
DataStreamControl dsc;
#endif
#ifdef ALTIVEC_VERIFY /* {{{ */
if (NOT_VECTOR_ALIGNED(wsp->intra_q_mat))
mjpeg_error_exit1("iquant_intra_m2: wsp->intra_q_mat %% 16 != 0, (%d)",
wsp->intra_q_mat);
if (NOT_VECTOR_ALIGNED(src))
mjpeg_error_exit1("iquant_intra_m2: src %% 16 != 0, (%d)", src);
if (NOT_VECTOR_ALIGNED(dst))
mjpeg_error_exit1("iquant_intra_m2: dst %% 16 != 0, (%d)", dst);
for (i = 0; i < 64; i++)
if (src[i] < -256 || src[i] > 255)
mjpeg_error_exit1("iquant_intra_m2: -256 > src[%i] > 255, (%d)",
i, src[i]);
#endif /* }}} */
AMBER_START;
dst0 = src[0] << (3 - dc_prec);
qmat = (uint16_t*)wsp->intra_q_mat;
#ifdef ALTIVEC_DST
dsc.control = DATA_STREAM_CONTROL(64/8,1,0);
vec_dst(src, dsc.control, 0);
vec_dst(qmat, dsc.control, 1);
#endif
/* vmquant = (vector unsigned short)(mquant); */
vu.mquant = (unsigned short)mquant;
vmquant = vec_splat(vu.vu16, 0);
vsum = vec_splat_s32(0);
zero = vec_splat_s16(0);
four = vec_splat_u32(4);
/* max = (2047); min = (-2048); {{{ */
vu8(max) = vec_splat_u8(0x7);
t0 = vec_splat_s16(-1); /* 0xffff */
vu8(max) = vec_mergeh(vu8(max), vu8(t0)); /* 0x07ff == 2047 */
min = vec_sub(t0, max);
/* }}} */
offset = 0;
#if 1
vsrc = vec_ld(offset, (signed short*)src);
vqmat = vec_ld(offset, (unsigned short*)qmat);
i = (64/8) - 1;
do {
/* intra_q[i] * mquant */
vu16(vqmat) = vec_mulo(vu8(vqmat), vu8(vmquant));
/* save sign */
ltzero = vec_cmplt(vsrc, zero);
/* val = abs(src) */
t0 = vec_sub(zero, vsrc);
val = vec_max(t0, vsrc);
/* val = (src * quant) >> 4 */
vs32(t0) = vec_mule(val, vs16(vqmat));
vs32(val) = vec_mulo(val, vs16(vqmat));
vs32(t0) = vec_sra(vs32(t0), four);
vs16(t0) = vec_pack(vs32(t0), vs32(t0));
vs32(val) = vec_sra(vs32(val), four);
vs16(val) = vec_pack(vs32(val), vs32(val));
val = vec_mergeh(vs16(t0), vs16(val));
offset2 = offset;
offset += 8*sizeof(int16_t);
vsrc = vec_ld(offset, (signed short*)src);
vqmat = vec_ld(offset, (unsigned short*)qmat);
/* restore sign */
t0 = vec_sub(zero, val);
val = vec_sel(val, t0, ltzero);
/* val = (val > 2047) ? ((val < -2048) ? -2048 : val); */
val = vec_min(val, max);
val = vec_max(val, min);
vsum = vec_sum4s(val, vsum);
vec_st(val, offset2, dst);
} while (--i);
/* intra_q[i] * mquant */
vu16(vqmat) = vec_mulo(vu8(vqmat), vu8(vmquant));
/* save sign */
ltzero = vec_cmplt(vsrc, zero);
/* val = abs(src) */
t0 = vec_sub(zero, vsrc);
val = vec_max(t0, vsrc);
/* val = (src * quant) >> 4 */
vs32(t0) = vec_mule(val, vs16(vqmat));
vs32(val) = vec_mulo(val, vs16(vqmat));
vs32(t0) = vec_sra(vs32(t0), four);
vs16(t0) = vec_pack(vs32(t0), vs32(t0));
vs32(val) = vec_sra(vs32(val), four);
vs16(val) = vec_pack(vs32(val), vs32(val));
val = vec_mergeh(vs16(t0), vs16(val));
/* restore sign */
t0 = vec_sub(zero, val);
val = vec_sel(val, t0, ltzero);
/* val = (val > 2047) ? ((val < -2048) ? -2048 : val); */
val = vec_min(val, max);
val = vec_max(val, min);
vsum = vec_sum4s(val, vsum);
vec_st(val, offset, dst);
#else
/* {{{ */
i = (64/8);
do {
vsrc = vec_ld(offset, (signed short*)src);
vqmat = vec_ld(offset, (unsigned short*)qmat);
/* intra_q[i] * mquant */
vu16(vqmat) = vec_mulo(vu8(vqmat), vu8(vmquant));
/* save sign */
ltzero = vec_cmplt(vsrc, zero);
/* val = abs(src) */
t0 = vec_sub(zero, vsrc);
val = vec_max(t0, vsrc);
/* val = (src * quant) >> 4 */
vs32(t0) = vec_mule(val, vs16(vqmat));
vs32(val) = vec_mulo(val, vs16(vqmat));
vs32(t0) = vec_sra(vs32(t0), four);
vs16(t0) = vec_pack(vs32(t0), vs32(t0));
vs32(val) = vec_sra(vs32(val), four);
vs16(val) = vec_pack(vs32(val), vs32(val));
val = vec_mergeh(vs16(t0), vs16(val));
/* restore sign */
t0 = vec_sub(zero, val);
val = vec_sel(val, t0, ltzero);
/* val = (val > 2047) ? ((val < -2048) ? -2048 : val); */
val = vec_min(val, max);
val = vec_max(val, min);
vsum = vec_sum4s(val, vsum);
vec_st(val, offset, dst);
offset += 8*sizeof(int16_t);
} while (--i);
/* }}} */
#endif
vu.vs32 = vec_sums(vsum, vs32(zero));
sum = vu.s.sum;
sum -= dst[0];
sum += dst0;
dst[0] = dst0;
/* mismatch control */
#if 1
dst[63] ^= !(sum & 1);
#else
if ((sum & 1) == 0)
dst[63] ^= 1;
#endif
AMBER_STOP;
}