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swscale: update altivec yuv2planeX asm to new per-plane API.

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pull/2/head
Ronald S. Bultje 13 years ago
parent 6cacecdca3
commit f48b12e0a6
1 changed files with 13 additions and 81 deletions
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  1. 94
      libswscale/ppc/swscale_altivec.c

94
libswscale/ppc/swscale_altivec.c
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@ -94,34 +94,29 @@ altivec_packIntArrayToCharArray(int *val, uint8_t* dest, int dstW)
//FIXME remove the usage of scratch buffers.
static void
yuv2yuvX_altivec_real(SwsContext *c,
const int16_t *lumFilter, const int16_t **lumSrc,
int lumFilterSize, const int16_t *chrFilter,
const int16_t **chrUSrc, const int16_t **chrVSrc,
int chrFilterSize, const int16_t **alpSrc,
uint8_t *dest[4], int dstW, int chrDstW)
yuv2planeX_altivec(const int16_t *filter, int filterSize,
const int16_t **src, uint8_t *dest, int dstW,
const uint8_t *dither, int offset)
{
uint8_t *yDest = dest[0], *uDest = dest[1], *vDest = dest[2];
const uint8_t *lumDither = c->lumDither8, *chrDither = c->chrDither8;
register int i, j;
{
DECLARE_ALIGNED(16, int, val)[dstW];
for (i=0; i<dstW; i++)
val[i] = lumDither[i & 7] << 12;
val[i] = dither[(i + offset) & 7] << 12;
for (j = 0; j < lumFilterSize; j++) {
vector signed short l1, vLumFilter = vec_ld(j << 1, lumFilter);
vector unsigned char perm, perm0 = vec_lvsl(j << 1, lumFilter);
for (j = 0; j < filterSize; j++) {
vector signed short l1, vLumFilter = vec_ld(j << 1, filter);
vector unsigned char perm, perm0 = vec_lvsl(j << 1, filter);
vLumFilter = vec_perm(vLumFilter, vLumFilter, perm0);
vLumFilter = vec_splat(vLumFilter, 0); // lumFilter[j] is loaded 8 times in vLumFilter
perm = vec_lvsl(0, lumSrc[j]);
l1 = vec_ld(0, lumSrc[j]);
perm = vec_lvsl(0, src[j]);
l1 = vec_ld(0, src[j]);
for (i = 0; i < (dstW - 7); i+=8) {
int offset = i << 2;
vector signed short l2 = vec_ld((i << 1) + 16, lumSrc[j]);
vector signed short l2 = vec_ld((i << 1) + 16, src[j]);
vector signed int v1 = vec_ld(offset, val);
vector signed int v2 = vec_ld(offset + 16, val);
@ -143,73 +138,10 @@ yuv2yuvX_altivec_real(SwsContext *c,
l1 = l2;
}
for ( ; i < dstW; i++) {
val[i] += lumSrc[j][i] * lumFilter[j];
val[i] += src[j][i] * filter[j];
}
}
altivec_packIntArrayToCharArray(val, yDest, dstW);
}
if (uDest != 0) {
DECLARE_ALIGNED(16, int, u)[chrDstW];
DECLARE_ALIGNED(16, int, v)[chrDstW];
for (i=0; i<chrDstW; i++) {
u[i] = chrDither[i & 7] << 12;
v[i] = chrDither[(i + 3) & 7] << 12;
}
for (j = 0; j < chrFilterSize; j++) {
vector signed short l1, l1_V, vChrFilter = vec_ld(j << 1, chrFilter);
vector unsigned char perm, perm0 = vec_lvsl(j << 1, chrFilter);
vChrFilter = vec_perm(vChrFilter, vChrFilter, perm0);
vChrFilter = vec_splat(vChrFilter, 0); // chrFilter[j] is loaded 8 times in vChrFilter
perm = vec_lvsl(0, chrUSrc[j]);
l1 = vec_ld(0, chrUSrc[j]);
l1_V = vec_ld(0, chrVSrc[j]);
for (i = 0; i < (chrDstW - 7); i+=8) {
int offset = i << 2;
vector signed short l2 = vec_ld((i << 1) + 16, chrUSrc[j]);
vector signed short l2_V = vec_ld((i << 1) + 16, chrVSrc[j]);
vector signed int v1 = vec_ld(offset, u);
vector signed int v2 = vec_ld(offset + 16, u);
vector signed int v1_V = vec_ld(offset, v);
vector signed int v2_V = vec_ld(offset + 16, v);
vector signed short ls = vec_perm(l1, l2, perm); // chrUSrc[j][i] ... chrUSrc[j][i+7]
vector signed short ls_V = vec_perm(l1_V, l2_V, perm); // chrVSrc[j][i] ... chrVSrc[j][i]
vector signed int i1 = vec_mule(vChrFilter, ls);
vector signed int i2 = vec_mulo(vChrFilter, ls);
vector signed int i1_V = vec_mule(vChrFilter, ls_V);
vector signed int i2_V = vec_mulo(vChrFilter, ls_V);
vector signed int vf1 = vec_mergeh(i1, i2);
vector signed int vf2 = vec_mergel(i1, i2); // chrUSrc[j][i] * chrFilter[j] ... chrUSrc[j][i+7] * chrFilter[j]
vector signed int vf1_V = vec_mergeh(i1_V, i2_V);
vector signed int vf2_V = vec_mergel(i1_V, i2_V); // chrVSrc[j][i] * chrFilter[j] ... chrVSrc[j][i+7] * chrFilter[j]
vector signed int vo1 = vec_add(v1, vf1);
vector signed int vo2 = vec_add(v2, vf2);
vector signed int vo1_V = vec_add(v1_V, vf1_V);
vector signed int vo2_V = vec_add(v2_V, vf2_V);
vec_st(vo1, offset, u);
vec_st(vo2, offset + 16, u);
vec_st(vo1_V, offset, v);
vec_st(vo2_V, offset + 16, v);
l1 = l2;
l1_V = l2_V;
}
for ( ; i < chrDstW; i++) {
u[i] += chrUSrc[j][i] * chrFilter[j];
v[i] += chrVSrc[j][i] * chrFilter[j];
}
}
altivec_packIntArrayToCharArray(u, uDest, chrDstW);
altivec_packIntArrayToCharArray(v, vDest, chrDstW);
altivec_packIntArrayToCharArray(val, dest, dstW);
}
}
@ -405,7 +337,7 @@ void ff_sws_init_swScale_altivec(SwsContext *c)
if (!is16BPS(dstFormat) && !is9_OR_10BPS(dstFormat) &&
dstFormat != PIX_FMT_NV12 && dstFormat != PIX_FMT_NV21 &&
!c->alpPixBuf) {
// c->yuv2yuvX = yuv2yuvX_altivec_real;
c->yuv2planeX = yuv2planeX_altivec;
}
/* The following list of supported dstFormat values should

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