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swscale/ppc: Move VSX-using code to its own file
Passes fate on LE (with "lavc/jrevdct: Avoid an aliasing violation" applied). Signed-off-by: Lauri Kasanen <cand@gmx.com> Tested-by: Michael Kostylev on BE Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Lauri Kasanen
Michael Niedermayer
parent
060ea5261d
commit
78c7ff7d25
@ -1,3 +1,4 @@
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OBJS += ppc/swscale_altivec.o \
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ppc/yuv2rgb_altivec.o \
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ppc/yuv2yuv_altivec.o \
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ppc/swscale_vsx.o
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@ -31,21 +31,14 @@
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#include "yuv2rgb_altivec.h"
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#include "libavutil/ppc/util_altivec.h"
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#if HAVE_ALTIVEC
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#if HAVE_ALTIVEC && HAVE_BIGENDIAN
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#define vzero vec_splat_s32(0)
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#if HAVE_BIGENDIAN
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#define GET_LS(a,b,c,s) {\
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vector signed short l2 = vec_ld(((b) << 1) + 16, s);\
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ls = vec_perm(a, l2, c);\
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a = l2;\
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}
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#else
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#define GET_LS(a,b,c,s) {\
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ls = a;\
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a = vec_vsx_ld(((b) << 1) + 16, s);\
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}
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#endif
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#define yuv2planeX_8(d1, d2, l1, src, x, perm, filter) do {\
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vector signed short ls;\
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@ -59,7 +52,6 @@
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d2 = vec_add(d2, vf2);\
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} while (0)
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#if HAVE_BIGENDIAN
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#define LOAD_FILTER(vf,f) {\
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vector unsigned char perm0 = vec_lvsl(joffset, f);\
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vf = vec_ld(joffset, f);\
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@ -69,89 +61,7 @@
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p = vec_lvsl(xoffset, s);\
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ll1 = vec_ld(xoffset, s);\
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}
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#else
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#define LOAD_FILTER(vf,f) {\
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vf = vec_vsx_ld(joffset, f);\
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}
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#define LOAD_L1(ll1,s,p){\
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ll1 = vec_vsx_ld(xoffset, s);\
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}
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#endif
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static void yuv2planeX_16_altivec(const int16_t *filter, int filterSize,
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const int16_t **src, uint8_t *dest,
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const uint8_t *dither, int offset, int x)
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{
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register int i, j;
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LOCAL_ALIGNED(16, int, val, [16]);
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vector signed int vo1, vo2, vo3, vo4;
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vector unsigned short vs1, vs2;
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vector unsigned char vf;
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vector unsigned int altivec_vectorShiftInt19 =
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vec_add(vec_splat_u32(10), vec_splat_u32(9));
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for (i = 0; i < 16; i++)
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val[i] = dither[(x + i + offset) & 7] << 12;
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vo1 = vec_ld(0, val);
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vo2 = vec_ld(16, val);
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vo3 = vec_ld(32, val);
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vo4 = vec_ld(48, val);
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for (j = 0; j < filterSize; j++) {
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unsigned int joffset=j<<1;
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unsigned int xoffset=x<<1;
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vector unsigned char perm;
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vector signed short l1,vLumFilter;
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LOAD_FILTER(vLumFilter,filter);
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vLumFilter = vec_splat(vLumFilter, 0);
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LOAD_L1(l1,src[j],perm);
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yuv2planeX_8(vo1, vo2, l1, src[j], x, perm, vLumFilter);
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yuv2planeX_8(vo3, vo4, l1, src[j], x + 8, perm, vLumFilter);
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}
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vo1 = vec_sra(vo1, altivec_vectorShiftInt19);
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vo2 = vec_sra(vo2, altivec_vectorShiftInt19);
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vo3 = vec_sra(vo3, altivec_vectorShiftInt19);
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vo4 = vec_sra(vo4, altivec_vectorShiftInt19);
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vs1 = vec_packsu(vo1, vo2);
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vs2 = vec_packsu(vo3, vo4);
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vf = vec_packsu(vs1, vs2);
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VEC_ST(vf, 0, dest);
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}
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static inline void yuv2planeX_u(const int16_t *filter, int filterSize,
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const int16_t **src, uint8_t *dest, int dstW,
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const uint8_t *dither, int offset, int x)
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{
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int i, j;
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for (i = x; i < dstW; i++) {
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int t = dither[(i + offset) & 7] << 12;
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for (j = 0; j < filterSize; j++)
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t += src[j][i] * filter[j];
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dest[i] = av_clip_uint8(t >> 19);
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}
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}
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static void yuv2planeX_altivec(const int16_t *filter, int filterSize,
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const int16_t **src, uint8_t *dest, int dstW,
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const uint8_t *dither, int offset)
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{
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int dst_u = -(uintptr_t)dest & 15;
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int i;
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yuv2planeX_u(filter, filterSize, src, dest, dst_u, dither, offset, 0);
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for (i = dst_u; i < dstW - 15; i += 16)
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yuv2planeX_16_altivec(filter, filterSize, src, dest + i, dither,
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offset, i);
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yuv2planeX_u(filter, filterSize, src, dest, dstW, dither, offset, i);
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}
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#if HAVE_BIGENDIAN
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// The 3 above is 2 (filterSize == 4) + 1 (sizeof(short) == 2).
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// The neat trick: We only care for half the elements,
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@ -187,191 +97,12 @@ static void yuv2planeX_altivec(const int16_t *filter, int filterSize,
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vf1 = vec_ld((a * 2 * filterSize) + (b * 2) + 16 + off, f);\
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vf = vec_perm(vf0, vf1, per);\
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}
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#else /* else of #if HAVE_BIGENDIAN */
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#define GET_VF4(a, vf, f) {\
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vf = (vector signed short)vec_vsx_ld(a << 3, f);\
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vf = vec_mergeh(vf, (vector signed short)vzero);\
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}
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#define FIRST_LOAD(sv, pos, s, per) {}
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#define UPDATE_PTR(s0, d0, s1, d1) {}
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#define LOAD_SRCV(pos, a, s, per, v0, v1, vf) {\
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vf = vec_vsx_ld(pos + a, s);\
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}
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#define LOAD_SRCV8(pos, a, s, per, v0, v1, vf) LOAD_SRCV(pos, a, s, per, v0, v1, vf)
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#define GET_VFD(a, b, f, vf0, vf1, per, vf, off) {\
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vf = vec_vsx_ld((a * 2 * filterSize) + (b * 2) + off, f);\
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}
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#endif /* end of #if HAVE_BIGENDIAN */
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static void hScale_altivec_real(SwsContext *c, int16_t *dst, int dstW,
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const uint8_t *src, const int16_t *filter,
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const int32_t *filterPos, int filterSize)
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{
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register int i;
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LOCAL_ALIGNED(16, int, tempo, [4]);
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#define FUNC(name) name ## _altivec
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#include "swscale_ppc_template.c"
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#undef FUNC
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if (filterSize % 4) {
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for (i = 0; i < dstW; i++) {
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register int j;
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register int srcPos = filterPos[i];
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register int val = 0;
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for (j = 0; j < filterSize; j++)
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val += ((int)src[srcPos + j]) * filter[filterSize * i + j];
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dst[i] = FFMIN(val >> 7, (1 << 15) - 1);
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}
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} else
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switch (filterSize) {
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case 4:
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for (i = 0; i < dstW; i++) {
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register int srcPos = filterPos[i];
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vector unsigned char src_vF = unaligned_load(srcPos, src);
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vector signed short src_v, filter_v;
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vector signed int val_vEven, val_s;
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src_v = // vec_unpackh sign-extends...
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(vector signed short)(VEC_MERGEH((vector unsigned char)vzero, src_vF));
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// now put our elements in the even slots
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src_v = vec_mergeh(src_v, (vector signed short)vzero);
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GET_VF4(i, filter_v, filter);
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val_vEven = vec_mule(src_v, filter_v);
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val_s = vec_sums(val_vEven, vzero);
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vec_st(val_s, 0, tempo);
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dst[i] = FFMIN(tempo[3] >> 7, (1 << 15) - 1);
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}
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break;
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case 8:
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for (i = 0; i < dstW; i++) {
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register int srcPos = filterPos[i];
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vector unsigned char src_vF, src_v0, src_v1;
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vector unsigned char permS;
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vector signed short src_v, filter_v;
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vector signed int val_v, val_s;
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FIRST_LOAD(src_v0, srcPos, src, permS);
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LOAD_SRCV8(srcPos, 0, src, permS, src_v0, src_v1, src_vF);
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src_v = // vec_unpackh sign-extends...
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(vector signed short)(VEC_MERGEH((vector unsigned char)vzero, src_vF));
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filter_v = vec_ld(i << 4, filter);
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val_v = vec_msums(src_v, filter_v, (vector signed int)vzero);
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val_s = vec_sums(val_v, vzero);
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vec_st(val_s, 0, tempo);
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dst[i] = FFMIN(tempo[3] >> 7, (1 << 15) - 1);
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}
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break;
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case 16:
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for (i = 0; i < dstW; i++) {
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register int srcPos = filterPos[i];
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vector unsigned char src_vF = unaligned_load(srcPos, src);
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vector signed short src_vA = // vec_unpackh sign-extends...
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(vector signed short)(VEC_MERGEH((vector unsigned char)vzero, src_vF));
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vector signed short src_vB = // vec_unpackh sign-extends...
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(vector signed short)(VEC_MERGEL((vector unsigned char)vzero, src_vF));
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vector signed short filter_v0 = vec_ld(i << 5, filter);
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vector signed short filter_v1 = vec_ld((i << 5) + 16, filter);
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vector signed int val_acc = vec_msums(src_vA, filter_v0, (vector signed int)vzero);
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vector signed int val_v = vec_msums(src_vB, filter_v1, val_acc);
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vector signed int val_s = vec_sums(val_v, vzero);
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VEC_ST(val_s, 0, tempo);
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dst[i] = FFMIN(tempo[3] >> 7, (1 << 15) - 1);
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}
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break;
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default:
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for (i = 0; i < dstW; i++) {
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register int j, offset = i * 2 * filterSize;
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register int srcPos = filterPos[i];
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vector signed int val_s, val_v = (vector signed int)vzero;
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vector signed short filter_v0R;
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vector unsigned char permF, src_v0, permS;
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FIRST_LOAD(filter_v0R, offset, filter, permF);
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FIRST_LOAD(src_v0, srcPos, src, permS);
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for (j = 0; j < filterSize - 15; j += 16) {
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vector unsigned char src_v1, src_vF;
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vector signed short filter_v1R, filter_v2R, filter_v0, filter_v1;
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LOAD_SRCV(srcPos, j, src, permS, src_v0, src_v1, src_vF);
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vector signed short src_vA = // vec_unpackh sign-extends...
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(vector signed short)(VEC_MERGEH((vector unsigned char)vzero, src_vF));
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vector signed short src_vB = // vec_unpackh sign-extends...
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(vector signed short)(VEC_MERGEL((vector unsigned char)vzero, src_vF));
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GET_VFD(i, j, filter, filter_v0R, filter_v1R, permF, filter_v0, 0);
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GET_VFD(i, j, filter, filter_v1R, filter_v2R, permF, filter_v1, 16);
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vector signed int val_acc = vec_msums(src_vA, filter_v0, val_v);
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val_v = vec_msums(src_vB, filter_v1, val_acc);
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UPDATE_PTR(filter_v2R, filter_v0R, src_v1, src_v0);
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}
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if (j < filterSize - 7) {
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// loading src_v0 is useless, it's already done above
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vector unsigned char src_v1, src_vF;
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vector signed short src_v, filter_v1R, filter_v;
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LOAD_SRCV8(srcPos, j, src, permS, src_v0, src_v1, src_vF);
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src_v = // vec_unpackh sign-extends...
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(vector signed short)(VEC_MERGEH((vector unsigned char)vzero, src_vF));
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GET_VFD(i, j, filter, filter_v0R, filter_v1R, permF, filter_v, 0);
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val_v = vec_msums(src_v, filter_v, val_v);
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}
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val_s = vec_sums(val_v, vzero);
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VEC_ST(val_s, 0, tempo);
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dst[i] = FFMIN(tempo[3] >> 7, (1 << 15) - 1);
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}
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}
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}
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static void yuv2plane1_8_u(const int16_t *src, uint8_t *dest, int dstW,
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const uint8_t *dither, int offset, int start)
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{
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int i;
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for (i = start; i < dstW; i++) {
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int val = (src[i] + dither[(i + offset) & 7]) >> 7;
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dest[i] = av_clip_uint8(val);
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}
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}
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static void yuv2plane1_8_altivec(const int16_t *src, uint8_t *dest, int dstW,
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const uint8_t *dither, int offset)
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{
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const int dst_u = -(uintptr_t)dest & 15;
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int i, j;
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LOCAL_ALIGNED(16, int16_t, val, [16]);
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const vector uint16_t shifts = (vector uint16_t) {7, 7, 7, 7, 7, 7, 7, 7};
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vector int16_t vi, vileft, ditherleft, ditherright;
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vector uint8_t vd;
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for (j = 0; j < 16; j++) {
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val[j] = dither[(dst_u + offset + j) & 7];
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}
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ditherleft = vec_ld(0, val);
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ditherright = vec_ld(0, &val[8]);
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yuv2plane1_8_u(src, dest, dst_u, dither, offset, 0);
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for (i = dst_u; i < dstW - 15; i += 16) {
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vi = vec_vsx_ld(0, &src[i]);
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vi = vec_adds(ditherleft, vi);
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vileft = vec_sra(vi, shifts);
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vi = vec_vsx_ld(0, &src[i + 8]);
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vi = vec_adds(ditherright, vi);
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vi = vec_sra(vi, shifts);
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vd = vec_packsu(vileft, vi);
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vec_st(vd, 0, &dest[i]);
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}
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yuv2plane1_8_u(src, dest, dstW, dither, offset, i);
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}
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#endif /* HAVE_ALTIVEC */
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#endif /* HAVE_ALTIVEC && HAVE_BIGENDIAN */
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av_cold void ff_sws_init_swscale_ppc(SwsContext *c)
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{
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@ -381,8 +112,9 @@ av_cold void ff_sws_init_swscale_ppc(SwsContext *c)
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if (!(av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC))
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return;
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#if HAVE_BIGENDIAN
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if (c->srcBpc == 8 && c->dstBpc <= 14) {
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c->hyScale = c->hcScale = hScale_altivec_real;
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c->hyScale = c->hcScale = hScale_real_altivec;
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}
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if (!is16BPS(dstFormat) && !isNBPS(dstFormat) &&
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dstFormat != AV_PIX_FMT_NV12 && dstFormat != AV_PIX_FMT_NV21 &&
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@ -390,6 +122,7 @@ av_cold void ff_sws_init_swscale_ppc(SwsContext *c)
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!c->needAlpha) {
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c->yuv2planeX = yuv2planeX_altivec;
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}
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#endif
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/* The following list of supported dstFormat values should
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* match what's found in the body of ff_yuv2packedX_altivec() */
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@ -414,12 +147,8 @@ av_cold void ff_sws_init_swscale_ppc(SwsContext *c)
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c->yuv2packedX = ff_yuv2rgb24_X_altivec;
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break;
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}
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switch (c->dstBpc) {
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case 8:
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c->yuv2plane1 = yuv2plane1_8_altivec;
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break;
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}
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}
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#endif /* HAVE_ALTIVEC */
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ff_sws_init_swscale_vsx(c);
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}
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217
libswscale/ppc/swscale_ppc_template.c
Normal file
217
libswscale/ppc/swscale_ppc_template.c
Normal file
@ -0,0 +1,217 @@
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/*
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* AltiVec-enhanced yuv2yuvX
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*
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* Copyright (C) 2004 Romain Dolbeau <romain@dolbeau.org>
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* based on the equivalent C code in swscale.c
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
|
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* License along with FFmpeg; if not, write to the Free Software
|
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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static void FUNC(yuv2planeX_16)(const int16_t *filter, int filterSize,
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const int16_t **src, uint8_t *dest,
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const uint8_t *dither, int offset, int x)
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{
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register int i, j;
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LOCAL_ALIGNED(16, int, val, [16]);
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vector signed int vo1, vo2, vo3, vo4;
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vector unsigned short vs1, vs2;
|
||||
vector unsigned char vf;
|
||||
vector unsigned int altivec_vectorShiftInt19 =
|
||||
vec_add(vec_splat_u32(10), vec_splat_u32(9));
|
||||
|
||||
for (i = 0; i < 16; i++)
|
||||
val[i] = dither[(x + i + offset) & 7] << 12;
|
||||
|
||||
vo1 = vec_ld(0, val);
|
||||
vo2 = vec_ld(16, val);
|
||||
vo3 = vec_ld(32, val);
|
||||
vo4 = vec_ld(48, val);
|
||||
|
||||
for (j = 0; j < filterSize; j++) {
|
||||
unsigned int joffset=j<<1;
|
||||
unsigned int xoffset=x<<1;
|
||||
vector unsigned char perm;
|
||||
vector signed short l1,vLumFilter;
|
||||
LOAD_FILTER(vLumFilter,filter);
|
||||
vLumFilter = vec_splat(vLumFilter, 0);
|
||||
LOAD_L1(l1,src[j],perm);
|
||||
yuv2planeX_8(vo1, vo2, l1, src[j], x, perm, vLumFilter);
|
||||
yuv2planeX_8(vo3, vo4, l1, src[j], x + 8, perm, vLumFilter);
|
||||
}
|
||||
|
||||
vo1 = vec_sra(vo1, altivec_vectorShiftInt19);
|
||||
vo2 = vec_sra(vo2, altivec_vectorShiftInt19);
|
||||
vo3 = vec_sra(vo3, altivec_vectorShiftInt19);
|
||||
vo4 = vec_sra(vo4, altivec_vectorShiftInt19);
|
||||
vs1 = vec_packsu(vo1, vo2);
|
||||
vs2 = vec_packsu(vo3, vo4);
|
||||
vf = vec_packsu(vs1, vs2);
|
||||
VEC_ST(vf, 0, dest);
|
||||
}
|
||||
|
||||
|
||||
static inline void yuv2planeX_u(const int16_t *filter, int filterSize,
|
||||
const int16_t **src, uint8_t *dest, int dstW,
|
||||
const uint8_t *dither, int offset, int x)
|
||||
{
|
||||
int i, j;
|
||||
|
||||
for (i = x; i < dstW; i++) {
|
||||
int t = dither[(i + offset) & 7] << 12;
|
||||
for (j = 0; j < filterSize; j++)
|
||||
t += src[j][i] * filter[j];
|
||||
dest[i] = av_clip_uint8(t >> 19);
|
||||
}
|
||||
}
|
||||
|
||||
static void FUNC(yuv2planeX)(const int16_t *filter, int filterSize,
|
||||
const int16_t **src, uint8_t *dest, int dstW,
|
||||
const uint8_t *dither, int offset)
|
||||
{
|
||||
int dst_u = -(uintptr_t)dest & 15;
|
||||
int i;
|
||||
|
||||
yuv2planeX_u(filter, filterSize, src, dest, dst_u, dither, offset, 0);
|
||||
|
||||
for (i = dst_u; i < dstW - 15; i += 16)
|
||||
FUNC(yuv2planeX_16)(filter, filterSize, src, dest + i, dither,
|
||||
offset, i);
|
||||
|
||||
yuv2planeX_u(filter, filterSize, src, dest, dstW, dither, offset, i);
|
||||
}
|
||||
|
||||
static void FUNC(hScale_real)(SwsContext *c, int16_t *dst, int dstW,
|
||||
const uint8_t *src, const int16_t *filter,
|
||||
const int32_t *filterPos, int filterSize)
|
||||
{
|
||||
register int i;
|
||||
LOCAL_ALIGNED(16, int, tempo, [4]);
|
||||
|
||||
if (filterSize % 4) {
|
||||
for (i = 0; i < dstW; i++) {
|
||||
register int j;
|
||||
register int srcPos = filterPos[i];
|
||||
register int val = 0;
|
||||
for (j = 0; j < filterSize; j++)
|
||||
val += ((int)src[srcPos + j]) * filter[filterSize * i + j];
|
||||
dst[i] = FFMIN(val >> 7, (1 << 15) - 1);
|
||||
}
|
||||
} else
|
||||
switch (filterSize) {
|
||||
case 4:
|
||||
for (i = 0; i < dstW; i++) {
|
||||
register int srcPos = filterPos[i];
|
||||
|
||||
vector unsigned char src_vF = unaligned_load(srcPos, src);
|
||||
vector signed short src_v, filter_v;
|
||||
vector signed int val_vEven, val_s;
|
||||
src_v = // vec_unpackh sign-extends...
|
||||
(vector signed short)(VEC_MERGEH((vector unsigned char)vzero, src_vF));
|
||||
// now put our elements in the even slots
|
||||
src_v = vec_mergeh(src_v, (vector signed short)vzero);
|
||||
GET_VF4(i, filter_v, filter);
|
||||
val_vEven = vec_mule(src_v, filter_v);
|
||||
val_s = vec_sums(val_vEven, vzero);
|
||||
vec_st(val_s, 0, tempo);
|
||||
dst[i] = FFMIN(tempo[3] >> 7, (1 << 15) - 1);
|
||||
}
|
||||
break;
|
||||
case 8:
|
||||
for (i = 0; i < dstW; i++) {
|
||||
register int srcPos = filterPos[i];
|
||||
vector unsigned char src_vF, src_v0, src_v1;
|
||||
vector unsigned char permS;
|
||||
vector signed short src_v, filter_v;
|
||||
vector signed int val_v, val_s;
|
||||
FIRST_LOAD(src_v0, srcPos, src, permS);
|
||||
LOAD_SRCV8(srcPos, 0, src, permS, src_v0, src_v1, src_vF);
|
||||
src_v = // vec_unpackh sign-extends...
|
||||
(vector signed short)(VEC_MERGEH((vector unsigned char)vzero, src_vF));
|
||||
filter_v = vec_ld(i << 4, filter);
|
||||
val_v = vec_msums(src_v, filter_v, (vector signed int)vzero);
|
||||
val_s = vec_sums(val_v, vzero);
|
||||
vec_st(val_s, 0, tempo);
|
||||
dst[i] = FFMIN(tempo[3] >> 7, (1 << 15) - 1);
|
||||
}
|
||||
break;
|
||||
|
||||
case 16:
|
||||
for (i = 0; i < dstW; i++) {
|
||||
register int srcPos = filterPos[i];
|
||||
|
||||
vector unsigned char src_vF = unaligned_load(srcPos, src);
|
||||
vector signed short src_vA = // vec_unpackh sign-extends...
|
||||
(vector signed short)(VEC_MERGEH((vector unsigned char)vzero, src_vF));
|
||||
vector signed short src_vB = // vec_unpackh sign-extends...
|
||||
(vector signed short)(VEC_MERGEL((vector unsigned char)vzero, src_vF));
|
||||
vector signed short filter_v0 = vec_ld(i << 5, filter);
|
||||
vector signed short filter_v1 = vec_ld((i << 5) + 16, filter);
|
||||
|
||||
vector signed int val_acc = vec_msums(src_vA, filter_v0, (vector signed int)vzero);
|
||||
vector signed int val_v = vec_msums(src_vB, filter_v1, val_acc);
|
||||
|
||||
vector signed int val_s = vec_sums(val_v, vzero);
|
||||
|
||||
VEC_ST(val_s, 0, tempo);
|
||||
dst[i] = FFMIN(tempo[3] >> 7, (1 << 15) - 1);
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
for (i = 0; i < dstW; i++) {
|
||||
register int j, offset = i * 2 * filterSize;
|
||||
register int srcPos = filterPos[i];
|
||||
|
||||
vector signed int val_s, val_v = (vector signed int)vzero;
|
||||
vector signed short filter_v0R;
|
||||
vector unsigned char permF, src_v0, permS;
|
||||
FIRST_LOAD(filter_v0R, offset, filter, permF);
|
||||
FIRST_LOAD(src_v0, srcPos, src, permS);
|
||||
|
||||
for (j = 0; j < filterSize - 15; j += 16) {
|
||||
vector unsigned char src_v1, src_vF;
|
||||
vector signed short filter_v1R, filter_v2R, filter_v0, filter_v1;
|
||||
LOAD_SRCV(srcPos, j, src, permS, src_v0, src_v1, src_vF);
|
||||
vector signed short src_vA = // vec_unpackh sign-extends...
|
||||
(vector signed short)(VEC_MERGEH((vector unsigned char)vzero, src_vF));
|
||||
vector signed short src_vB = // vec_unpackh sign-extends...
|
||||
(vector signed short)(VEC_MERGEL((vector unsigned char)vzero, src_vF));
|
||||
GET_VFD(i, j, filter, filter_v0R, filter_v1R, permF, filter_v0, 0);
|
||||
GET_VFD(i, j, filter, filter_v1R, filter_v2R, permF, filter_v1, 16);
|
||||
|
||||
vector signed int val_acc = vec_msums(src_vA, filter_v0, val_v);
|
||||
val_v = vec_msums(src_vB, filter_v1, val_acc);
|
||||
UPDATE_PTR(filter_v2R, filter_v0R, src_v1, src_v0);
|
||||
}
|
||||
|
||||
if (j < filterSize - 7) {
|
||||
// loading src_v0 is useless, it's already done above
|
||||
vector unsigned char src_v1, src_vF;
|
||||
vector signed short src_v, filter_v1R, filter_v;
|
||||
LOAD_SRCV8(srcPos, j, src, permS, src_v0, src_v1, src_vF);
|
||||
src_v = // vec_unpackh sign-extends...
|
||||
(vector signed short)(VEC_MERGEH((vector unsigned char)vzero, src_vF));
|
||||
GET_VFD(i, j, filter, filter_v0R, filter_v1R, permF, filter_v, 0);
|
||||
val_v = vec_msums(src_v, filter_v, val_v);
|
||||
}
|
||||
val_s = vec_sums(val_v, vzero);
|
||||
|
||||
VEC_ST(val_s, 0, tempo);
|
||||
dst[i] = FFMIN(tempo[3] >> 7, (1 << 15) - 1);
|
||||
}
|
||||
}
|
||||
}
|
||||
164
libswscale/ppc/swscale_vsx.c
Normal file
164
libswscale/ppc/swscale_vsx.c
Normal file
@ -0,0 +1,164 @@
|
||||
/*
|
||||
* AltiVec-enhanced yuv2yuvX
|
||||
*
|
||||
* Copyright (C) 2004 Romain Dolbeau <romain@dolbeau.org>
|
||||
* based on the equivalent C code in swscale.c
|
||||
*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <inttypes.h>
|
||||
|
||||
#include "config.h"
|
||||
#include "libswscale/swscale.h"
|
||||
#include "libswscale/swscale_internal.h"
|
||||
#include "libavutil/attributes.h"
|
||||
#include "libavutil/cpu.h"
|
||||
#include "yuv2rgb_altivec.h"
|
||||
#include "libavutil/ppc/util_altivec.h"
|
||||
|
||||
#if HAVE_VSX
|
||||
#define vzero vec_splat_s32(0)
|
||||
|
||||
#if !HAVE_BIGENDIAN
|
||||
#define GET_LS(a,b,c,s) {\
|
||||
ls = a;\
|
||||
a = vec_vsx_ld(((b) << 1) + 16, s);\
|
||||
}
|
||||
|
||||
#define yuv2planeX_8(d1, d2, l1, src, x, perm, filter) do {\
|
||||
vector signed short ls;\
|
||||
GET_LS(l1, x, perm, src);\
|
||||
vector signed int i1 = vec_mule(filter, ls);\
|
||||
vector signed int i2 = vec_mulo(filter, ls);\
|
||||
vector signed int vf1, vf2;\
|
||||
vf1 = vec_mergeh(i1, i2);\
|
||||
vf2 = vec_mergel(i1, i2);\
|
||||
d1 = vec_add(d1, vf1);\
|
||||
d2 = vec_add(d2, vf2);\
|
||||
} while (0)
|
||||
|
||||
#define LOAD_FILTER(vf,f) {\
|
||||
vf = vec_vsx_ld(joffset, f);\
|
||||
}
|
||||
#define LOAD_L1(ll1,s,p){\
|
||||
ll1 = vec_vsx_ld(xoffset, s);\
|
||||
}
|
||||
|
||||
// The 3 above is 2 (filterSize == 4) + 1 (sizeof(short) == 2).
|
||||
|
||||
// The neat trick: We only care for half the elements,
|
||||
// high or low depending on (i<<3)%16 (it's 0 or 8 here),
|
||||
// and we're going to use vec_mule, so we choose
|
||||
// carefully how to "unpack" the elements into the even slots.
|
||||
#define GET_VF4(a, vf, f) {\
|
||||
vf = (vector signed short)vec_vsx_ld(a << 3, f);\
|
||||
vf = vec_mergeh(vf, (vector signed short)vzero);\
|
||||
}
|
||||
#define FIRST_LOAD(sv, pos, s, per) {}
|
||||
#define UPDATE_PTR(s0, d0, s1, d1) {}
|
||||
#define LOAD_SRCV(pos, a, s, per, v0, v1, vf) {\
|
||||
vf = vec_vsx_ld(pos + a, s);\
|
||||
}
|
||||
#define LOAD_SRCV8(pos, a, s, per, v0, v1, vf) LOAD_SRCV(pos, a, s, per, v0, v1, vf)
|
||||
#define GET_VFD(a, b, f, vf0, vf1, per, vf, off) {\
|
||||
vf = vec_vsx_ld((a * 2 * filterSize) + (b * 2) + off, f);\
|
||||
}
|
||||
|
||||
#define FUNC(name) name ## _vsx
|
||||
#include "swscale_ppc_template.c"
|
||||
#undef FUNC
|
||||
|
||||
#endif /* !HAVE_BIGENDIAN */
|
||||
|
||||
static void yuv2plane1_8_u(const int16_t *src, uint8_t *dest, int dstW,
|
||||
const uint8_t *dither, int offset, int start)
|
||||
{
|
||||
int i;
|
||||
for (i = start; i < dstW; i++) {
|
||||
int val = (src[i] + dither[(i + offset) & 7]) >> 7;
|
||||
dest[i] = av_clip_uint8(val);
|
||||
}
|
||||
}
|
||||
|
||||
static void yuv2plane1_8_vsx(const int16_t *src, uint8_t *dest, int dstW,
|
||||
const uint8_t *dither, int offset)
|
||||
{
|
||||
const int dst_u = -(uintptr_t)dest & 15;
|
||||
int i, j;
|
||||
LOCAL_ALIGNED(16, int16_t, val, [16]);
|
||||
const vector uint16_t shifts = (vector uint16_t) {7, 7, 7, 7, 7, 7, 7, 7};
|
||||
vector int16_t vi, vileft, ditherleft, ditherright;
|
||||
vector uint8_t vd;
|
||||
|
||||
for (j = 0; j < 16; j++) {
|
||||
val[j] = dither[(dst_u + offset + j) & 7];
|
||||
}
|
||||
|
||||
ditherleft = vec_ld(0, val);
|
||||
ditherright = vec_ld(0, &val[8]);
|
||||
|
||||
yuv2plane1_8_u(src, dest, dst_u, dither, offset, 0);
|
||||
|
||||
for (i = dst_u; i < dstW - 15; i += 16) {
|
||||
|
||||
vi = vec_vsx_ld(0, &src[i]);
|
||||
vi = vec_adds(ditherleft, vi);
|
||||
vileft = vec_sra(vi, shifts);
|
||||
|
||||
vi = vec_vsx_ld(0, &src[i + 8]);
|
||||
vi = vec_adds(ditherright, vi);
|
||||
vi = vec_sra(vi, shifts);
|
||||
|
||||
vd = vec_packsu(vileft, vi);
|
||||
vec_st(vd, 0, &dest[i]);
|
||||
}
|
||||
|
||||
yuv2plane1_8_u(src, dest, dstW, dither, offset, i);
|
||||
}
|
||||
|
||||
#endif /* HAVE_VSX */
|
||||
|
||||
av_cold void ff_sws_init_swscale_vsx(SwsContext *c)
|
||||
{
|
||||
#if HAVE_VSX
|
||||
enum AVPixelFormat dstFormat = c->dstFormat;
|
||||
|
||||
if (!(av_get_cpu_flags() & AV_CPU_FLAG_VSX))
|
||||
return;
|
||||
|
||||
#if !HAVE_BIGENDIAN
|
||||
if (c->srcBpc == 8 && c->dstBpc <= 14) {
|
||||
c->hyScale = c->hcScale = hScale_real_vsx;
|
||||
}
|
||||
if (!is16BPS(dstFormat) && !isNBPS(dstFormat) &&
|
||||
dstFormat != AV_PIX_FMT_NV12 && dstFormat != AV_PIX_FMT_NV21 &&
|
||||
dstFormat != AV_PIX_FMT_GRAYF32BE && dstFormat != AV_PIX_FMT_GRAYF32LE &&
|
||||
!c->needAlpha) {
|
||||
c->yuv2planeX = yuv2planeX_vsx;
|
||||
}
|
||||
#endif
|
||||
|
||||
if (!(c->flags & (SWS_BITEXACT | SWS_FULL_CHR_H_INT)) && !c->needAlpha) {
|
||||
switch (c->dstBpc) {
|
||||
case 8:
|
||||
c->yuv2plane1 = yuv2plane1_8_vsx;
|
||||
break;
|
||||
}
|
||||
}
|
||||
#endif /* HAVE_VSX */
|
||||
}
|
||||
@ -868,6 +868,7 @@ void ff_sws_init_output_funcs(SwsContext *c,
|
||||
yuv2packedX_fn *yuv2packedX,
|
||||
yuv2anyX_fn *yuv2anyX);
|
||||
void ff_sws_init_swscale_ppc(SwsContext *c);
|
||||
void ff_sws_init_swscale_vsx(SwsContext *c);
|
||||
void ff_sws_init_swscale_x86(SwsContext *c);
|
||||
void ff_sws_init_swscale_aarch64(SwsContext *c);
|
||||
void ff_sws_init_swscale_arm(SwsContext *c);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user