diff options
| -rw-r--r-- | libavcodec/ppc/h264_altivec.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/libavcodec/ppc/h264_altivec.c b/libavcodec/ppc/h264_altivec.c index 6caf4c153c..c83da0e0ba 100644 --- a/libavcodec/ppc/h264_altivec.c +++ b/libavcodec/ppc/h264_altivec.c @@ -175,6 +175,135 @@ static void OPNAME ## h264_qpel ## SIZE ## _mc32_ ## CODETYPE(uint8_t *dst, uint OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfV, halfHV, stride, SIZE, SIZE);\ }\ +/* 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, vfdst, 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; + } + } +} + static inline void put_pixels16_l2_altivec( uint8_t * dst, const uint8_t * src1, const uint8_t * src2, int dst_stride, int src_stride1, int h) @@ -272,6 +401,7 @@ void dsputil_h264_init_ppc(DSPContext* c, AVCodecContext *avctx) { #ifdef HAVE_ALTIVEC if (has_altivec()) { c->put_h264_chroma_pixels_tab[0] = put_h264_chroma_mc8_altivec; + c->put_no_rnd_h264_chroma_pixels_tab[0] = put_no_rnd_h264_chroma_mc8_altivec; c->avg_h264_chroma_pixels_tab[0] = avg_h264_chroma_mc8_altivec; #define dspfunc(PFX, IDX, NUM) \ |