diff options
Diffstat (limited to 'libavcodec/ppc/h264_template_altivec.c')
| -rw-r--r-- | libavcodec/ppc/h264_template_altivec.c | 97 |
1 files changed, 93 insertions, 4 deletions
diff --git a/libavcodec/ppc/h264_template_altivec.c b/libavcodec/ppc/h264_template_altivec.c index b41024a03e..954fd16bd9 100644 --- a/libavcodec/ppc/h264_template_altivec.c +++ b/libavcodec/ppc/h264_template_altivec.c @@ -27,14 +27,15 @@ /* this code assume that stride % 16 == 0 */ -#define CHROMA_MC8_ALTIVEC_CORE \ +#define CHROMA_MC8_ALTIVEC_CORE(BIAS1, BIAS2) \ vsrc2ssH = (vec_s16)vec_mergeh(zero_u8v,(vec_u8)vsrc2uc);\ vsrc3ssH = (vec_s16)vec_mergeh(zero_u8v,(vec_u8)vsrc3uc);\ \ - psum = vec_mladd(vA, vsrc0ssH, v32ss);\ + psum = vec_mladd(vA, vsrc0ssH, BIAS1);\ psum = vec_mladd(vB, vsrc1ssH, psum);\ psum = vec_mladd(vC, vsrc2ssH, psum);\ psum = vec_mladd(vD, vsrc3ssH, psum);\ + psum = BIAS2(psum);\ psum = vec_sr(psum, v6us);\ \ vdst = vec_ld(0, dst);\ @@ -71,6 +72,9 @@ dst += stride;\ src += stride; +#define noop(a) a +#define add28(a) vec_add(v28ss, a) + 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); @@ -136,7 +140,7 @@ void PREFIX_h264_chroma_mc8_altivec(uint8_t * dst, uint8_t * src, vsrc2uc = vec_perm(vsrcCuc, vsrcCuc, vsrcperm0); vsrc3uc = vec_perm(vsrcCuc, vsrcCuc, vsrcperm1); - CHROMA_MC8_ALTIVEC_CORE + CHROMA_MC8_ALTIVEC_CORE(v32ss, noop) } } else { vec_u8 vsrcDuc; @@ -149,7 +153,7 @@ void PREFIX_h264_chroma_mc8_altivec(uint8_t * dst, uint8_t * src, else vsrc3uc = vec_perm(vsrcCuc, vsrcDuc, vsrcperm1); - CHROMA_MC8_ALTIVEC_CORE + CHROMA_MC8_ALTIVEC_CORE(v32ss, noop) } } } else { @@ -202,6 +206,91 @@ void PREFIX_h264_chroma_mc8_altivec(uint8_t * dst, uint8_t * src, POWERPC_PERF_STOP_COUNT(PREFIX_h264_chroma_mc8_num, 1); } +/* this code assume that stride % 16 == 0 */ +void PREFIX_no_rnd_vc1_chroma_mc8_altivec(uint8_t * dst, uint8_t * src, int stride, int h, int x, int y) { + DECLARE_ALIGNED_16(signed int, ABCD[4]) = + {((8 - x) * (8 - y)), + (( x) * (8 - y)), + ((8 - x) * ( y)), + (( x) * ( y))}; + register int i; + vec_u8 fperm; + const vec_s32 vABCD = vec_ld(0, ABCD); + const vec_s16 vA = vec_splat((vec_s16)vABCD, 1); + const vec_s16 vB = vec_splat((vec_s16)vABCD, 3); + const vec_s16 vC = vec_splat((vec_s16)vABCD, 5); + const vec_s16 vD = vec_splat((vec_s16)vABCD, 7); + LOAD_ZERO; + const vec_s16 v28ss = vec_sub(vec_sl(vec_splat_s16(1),vec_splat_u16(5)),vec_splat_s16(4)); + const vec_u16 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; + + vec_u8 vsrcAuc, av_uninit(vsrcBuc), vsrcperm0, vsrcperm1; + vec_u8 vsrc0uc, vsrc1uc; + vec_s16 vsrc0ssH, vsrc1ssH; + vec_u8 vsrcCuc, vsrc2uc, vsrc3uc; + vec_s16 vsrc2ssH, vsrc3ssH, psum; + vec_u8 vdst, ppsum, vfdst, fsum; + + if (((unsigned long)dst) % 16 == 0) { + fperm = (vec_u8){0x10, 0x11, 0x12, 0x13, + 0x14, 0x15, 0x16, 0x17, + 0x08, 0x09, 0x0A, 0x0B, + 0x0C, 0x0D, 0x0E, 0x0F}; + } else { + fperm = (vec_u8){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 = (vec_s16)vec_mergeh(zero_u8v, (vec_u8)vsrc0uc); + vsrc1ssH = (vec_s16)vec_mergeh(zero_u8v, (vec_u8)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); + + CHROMA_MC8_ALTIVEC_CORE(vec_splat_s16(0), add28) + } + } else { + vec_u8 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); + + CHROMA_MC8_ALTIVEC_CORE(vec_splat_s16(0), add28) + } + } +} + +#undef noop +#undef add28 #undef CHROMA_MC8_ALTIVEC_CORE /* this code assume stride % 16 == 0 */ |