42 #if HAVE_GNU_AS && HAVE_ALTIVEC && HAVE_BIGENDIAN 50 const uint16_t *revtabj = s->
revtab;
51 const uint16_t *revtabk = s->
revtab+n4;
60 vec_f cos,sin,cos0,sin0,cos1,sin1,
re,
im,r0,i0,r1,i1,
a,
b,c,d;
61 #define CMULA(p,o0,o1,o2,o3)\ 64 re = vec_perm(a, b, vcprm(0,2,s0,s2)); \ 65 im = vec_perm(a, b, vcprm(s3,s1,3,1)); \ 66 cos = vec_perm(cos0, cos1, vcprm(o0,o1,s##o2,s##o3)); \ 67 sin = vec_perm(sin0, sin1, vcprm(o0,o1,s##o2,s##o3));\ 68 r##p = im*cos - re*sin;\ 69 i##p = re*cos + im*sin; 70 #define STORE2(v,dst)\ 72 vec_ste(v, 0, output+j*2);\ 73 vec_ste(v, 4, output+j*2); 75 a = vec_perm(r##p, i##p, vcprm(0,s0,0,s0));\ 76 b = vec_perm(r##p, i##p, vcprm(1,s1,1,s1));\ 77 c = vec_perm(r##p, i##p, vcprm(2,s2,2,s2));\ 78 d = vec_perm(r##p, i##p, vcprm(3,s3,3,s3));\ 79 STORE2(a, revtabk[ p*2-4]);\ 80 STORE2(b, revtabk[ p*2-3]);\ 81 STORE2(c, revtabj[-p*2+2]);\ 82 STORE2(d, revtabj[-p*2+3]); 104 #define CMULB(d0,d1,o)\ 109 d0 = im*sin - re*cos;\ 110 d1 = re*sin + im*cos; 114 pout[2*j] = vec_perm(a, d, vcprm(0,s3,1,s2));
115 pout[2*j+1] = vec_perm(a, d, vcprm(2,s1,3,s0));
116 pout[2*k] = vec_perm(c, b, vcprm(0,s3,1,s2));
117 pout[2*k+1] = vec_perm(c, b, vcprm(2,s1,3,s0));
129 vec_u32 sign = {1
U<<31,1
U<<31,1U<<31,1U<<31};
133 imdct_half_altivec(s, output + n4, input);
135 for (k = 0; k < n16; k++) {
138 p0[-k-1] = vec_perm(a, a, vcprm(3,2,1,0));
139 p1[k] = vec_perm(b, b, vcprm(3,2,1,0));
146 #if HAVE_GNU_AS && HAVE_ALTIVEC && HAVE_BIGENDIAN
av_cold void ff_fft_init_ppc(FFTContext *s)
#define PPC_ALTIVEC(flags)
void(* imdct_calc)(struct FFTContext *s, FFTSample *output, const FFTSample *input)
void ff_fft_calc_interleave_altivec(FFTContext *s, FFTComplex *z)
void ff_fft_calc_altivec(FFTContext *s, FFTComplex *z)
Do a complex FFT with the parameters defined in ff_fft_init().
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
void(* imdct_half)(struct FFTContext *s, FFTSample *output, const FFTSample *input)
Contains misc utility macros and inline functions.
void(* fft_calc)(struct FFTContext *s, FFTComplex *z)
Do a complex FFT with the parameters defined in ff_fft_init().