#include "libavutil/ppc/util_altivec.h"
#if HAVE_ALTIVEC
+#if HAVE_BIGENDIAN
#define vzero vec_splat_s32(0)
-#if HAVE_BIGENDIAN
#define GET_LS(a,b,c,s) {\
vector signed short l2 = vec_ld(((b) << 1) + 16, s);\
ls = vec_perm(a, l2, c);\
a = l2;\
}
-#else
-#define GET_LS(a,b,c,s) {\
- ls = a;\
- a = vec_vsx_ld(((b) << 1) + 16, s);\
- }
-#endif
#define yuv2planeX_8(d1, d2, l1, src, x, perm, filter) do {\
vector signed short ls;\
+ vector signed int vf1, vf2, i1, i2;\
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;\
+ i1 = vec_mule(filter, ls);\
+ i2 = vec_mulo(filter, ls);\
vf1 = vec_mergeh(i1, i2);\
vf2 = vec_mergel(i1, i2);\
d1 = vec_add(d1, vf1);\
d2 = vec_add(d2, vf2);\
} while (0)
-#if HAVE_BIGENDIAN
#define LOAD_FILTER(vf,f) {\
vector unsigned char perm0 = vec_lvsl(joffset, f);\
vf = vec_ld(joffset, f);\
p = vec_lvsl(xoffset, s);\
ll1 = vec_ld(xoffset, s);\
}
-#else
-#define LOAD_FILTER(vf,f) {\
- vf = vec_vsx_ld(joffset, f);\
-}
-#define LOAD_L1(ll1,s,p){\
- ll1 = vec_vsx_ld(xoffset, s);\
-}
-#endif
-
-static void yuv2planeX_16_altivec(const int16_t *filter, int filterSize,
- const int16_t **src, uint8_t *dest,
- const uint8_t *dither, int offset, int x)
-{
- register int i, j;
- LOCAL_ALIGNED(16, int, val, [16]);
- vector signed int vo1, vo2, vo3, vo4;
- 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 yuv2planeX_altivec(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)
- yuv2planeX_16_altivec(filter, filterSize, src, dest + i, dither,
- offset, i);
-
- yuv2planeX_u(filter, filterSize, src, dest, dstW, dither, offset, i);
-}
-
-#if HAVE_BIGENDIAN
// The 3 above is 2 (filterSize == 4) + 1 (sizeof(short) == 2).
// The neat trick: We only care for half the elements,
vf1 = vec_ld((a * 2 * filterSize) + (b * 2) + 16 + off, f);\
vf = vec_perm(vf0, vf1, per);\
}
-#else /* else of #if HAVE_BIGENDIAN */
-#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 FUNC(name) name ## _altivec
+#include "swscale_ppc_template.c"
+#undef FUNC
+
+#undef vzero
+
+#endif /* HAVE_BIGENDIAN */
+
+#define output_pixel(pos, val, bias, signedness) \
+ if (big_endian) { \
+ AV_WB16(pos, bias + av_clip_ ## signedness ## 16(val >> shift)); \
+ } else { \
+ AV_WL16(pos, bias + av_clip_ ## signedness ## 16(val >> shift)); \
+ }
+
+static void
+yuv2plane1_float_u(const int32_t *src, float *dest, int dstW, int start)
+{
+ static const int big_endian = HAVE_BIGENDIAN;
+ static const int shift = 3;
+ static const float float_mult = 1.0f / 65535.0f;
+ int i, val;
+ uint16_t val_uint;
+
+ for (i = start; i < dstW; ++i){
+ val = src[i] + (1 << (shift - 1));
+ output_pixel(&val_uint, val, 0, uint);
+ dest[i] = float_mult * (float)val_uint;
+ }
}
-#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);\
+
+static void
+yuv2plane1_float_bswap_u(const int32_t *src, uint32_t *dest, int dstW, int start)
+{
+ static const int big_endian = HAVE_BIGENDIAN;
+ static const int shift = 3;
+ static const float float_mult = 1.0f / 65535.0f;
+ int i, val;
+ uint16_t val_uint;
+
+ for (i = start; i < dstW; ++i){
+ val = src[i] + (1 << (shift - 1));
+ output_pixel(&val_uint, val, 0, uint);
+ dest[i] = av_bswap32(av_float2int(float_mult * (float)val_uint));
+ }
}
-#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);\
+
+static void yuv2plane1_float_altivec(const int32_t *src, float *dest, int dstW)
+{
+ const int dst_u = -(uintptr_t)dest & 3;
+ const int shift = 3;
+ const int add = (1 << (shift - 1));
+ const int clip = (1 << 16) - 1;
+ const float fmult = 1.0f / 65535.0f;
+ const vec_u32 vadd = (vec_u32) {add, add, add, add};
+ const vec_u32 vshift = (vec_u32) vec_splat_u32(shift);
+ const vec_u32 vlargest = (vec_u32) {clip, clip, clip, clip};
+ const vec_f vmul = (vec_f) {fmult, fmult, fmult, fmult};
+ const vec_f vzero = (vec_f) {0, 0, 0, 0};
+ vec_u32 v;
+ vec_f vd;
+ int i;
+
+ yuv2plane1_float_u(src, dest, dst_u, 0);
+
+ for (i = dst_u; i < dstW - 3; i += 4) {
+ v = vec_ld(0, (const uint32_t *) &src[i]);
+ v = vec_add(v, vadd);
+ v = vec_sr(v, vshift);
+ v = vec_min(v, vlargest);
+
+ vd = vec_ctf(v, 0);
+ vd = vec_madd(vd, vmul, vzero);
+
+ vec_st(vd, 0, &dest[i]);
+ }
+
+ yuv2plane1_float_u(src, dest, dstW, i);
}
-#endif /* end of #if HAVE_BIGENDIAN */
-static void hScale_altivec_real(SwsContext *c, int16_t *dst, int dstW,
- const uint8_t *src, const int16_t *filter,
- const int32_t *filterPos, int filterSize)
+static void yuv2plane1_float_bswap_altivec(const int32_t *src, uint32_t *dest, int dstW)
{
- 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);
- }
- }
+ const int dst_u = -(uintptr_t)dest & 3;
+ const int shift = 3;
+ const int add = (1 << (shift - 1));
+ const int clip = (1 << 16) - 1;
+ const float fmult = 1.0f / 65535.0f;
+ const vec_u32 vadd = (vec_u32) {add, add, add, add};
+ const vec_u32 vshift = (vec_u32) vec_splat_u32(shift);
+ const vec_u32 vlargest = (vec_u32) {clip, clip, clip, clip};
+ const vec_f vmul = (vec_f) {fmult, fmult, fmult, fmult};
+ const vec_f vzero = (vec_f) {0, 0, 0, 0};
+ const vec_u32 vswapbig = (vec_u32) {16, 16, 16, 16};
+ const vec_u16 vswapsmall = vec_splat_u16(8);
+ vec_u32 v;
+ vec_f vd;
+ int i;
+
+ yuv2plane1_float_bswap_u(src, dest, dst_u, 0);
+
+ for (i = dst_u; i < dstW - 3; i += 4) {
+ v = vec_ld(0, (const uint32_t *) &src[i]);
+ v = vec_add(v, vadd);
+ v = vec_sr(v, vshift);
+ v = vec_min(v, vlargest);
+
+ vd = vec_ctf(v, 0);
+ vd = vec_madd(vd, vmul, vzero);
+
+ vd = (vec_f) vec_rl((vec_u32) vd, vswapbig);
+ vd = (vec_f) vec_rl((vec_u16) vd, vswapsmall);
+
+ vec_st(vd, 0, (float *) &dest[i]);
+ }
+
+ yuv2plane1_float_bswap_u(src, dest, dstW, i);
}
+
+#define yuv2plane1_float(template, dest_type, BE_LE) \
+static void yuv2plane1_float ## BE_LE ## _altivec(const int16_t *src, uint8_t *dest, \
+ int dstW, \
+ const uint8_t *dither, int offset) \
+{ \
+ template((const int32_t *)src, (dest_type *)dest, dstW); \
+}
+
+#if HAVE_BIGENDIAN
+yuv2plane1_float(yuv2plane1_float_altivec, float, BE)
+yuv2plane1_float(yuv2plane1_float_bswap_altivec, uint32_t, LE)
+#else
+yuv2plane1_float(yuv2plane1_float_altivec, float, LE)
+yuv2plane1_float(yuv2plane1_float_bswap_altivec, uint32_t, BE)
+#endif
+
#endif /* HAVE_ALTIVEC */
av_cold void ff_sws_init_swscale_ppc(SwsContext *c)
if (!(av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC))
return;
+#if HAVE_BIGENDIAN
if (c->srcBpc == 8 && c->dstBpc <= 14) {
- c->hyScale = c->hcScale = hScale_altivec_real;
+ c->hyScale = c->hcScale = hScale_real_altivec;
}
- if (!is16BPS(dstFormat) && !isNBPS(dstFormat) &&
- dstFormat != AV_PIX_FMT_NV12 && dstFormat != AV_PIX_FMT_NV21 &&
+ if (!is16BPS(dstFormat) && !isNBPS(dstFormat) && !isSemiPlanarYUV(dstFormat) &&
dstFormat != AV_PIX_FMT_GRAYF32BE && dstFormat != AV_PIX_FMT_GRAYF32LE &&
!c->needAlpha) {
c->yuv2planeX = yuv2planeX_altivec;
}
+#endif
+
+ if (dstFormat == AV_PIX_FMT_GRAYF32BE) {
+ c->yuv2plane1 = yuv2plane1_floatBE_altivec;
+ } else if (dstFormat == AV_PIX_FMT_GRAYF32LE) {
+ c->yuv2plane1 = yuv2plane1_floatLE_altivec;
+ }
/* The following list of supported dstFormat values should
* match what's found in the body of ff_yuv2packedX_altivec() */
}
}
#endif /* HAVE_ALTIVEC */
+
+ ff_sws_init_swscale_vsx(c);
}
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