#include "libavcodec/fft.h"
#include "util_altivec.h"
#include "types_altivec.h"
-#include "regs.h"
/**
* Do a complex FFT with the parameters defined in ff_fft_init(). The
* It also assumes all FFTComplex are 8 bytes-aligned pair of float
*/
-// Pointers to functions. Not using function pointer syntax, because
-// that involves an extra level of indirection on some PPC ABIs.
-extern void *ff_fft_dispatch_altivec[2][15];
+void ff_fft_calc_altivec(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_interleave_altivec(FFTContext *s, FFTComplex *z);
#if HAVE_GNU_AS
-static av_always_inline void fft_dispatch(FFTContext *s, FFTComplex *z, int do_swizzle)
-{
- register vec_f v14 __asm__("v14") = {0,0,0,0};
- register vec_f v15 __asm__("v15") = *(const vec_f*)ff_cos_16;
- register vec_f v16 __asm__("v16") = {0, 0.38268343, M_SQRT1_2, 0.92387953};
- register vec_f v17 __asm__("v17") = {-M_SQRT1_2, M_SQRT1_2, M_SQRT1_2,-M_SQRT1_2};
- register vec_f v18 __asm__("v18") = { M_SQRT1_2, M_SQRT1_2, M_SQRT1_2, M_SQRT1_2};
- register vec_u8 v19 __asm__("v19") = vcprm(s0,3,2,1);
- register vec_u8 v20 __asm__("v20") = vcprm(0,1,s2,s1);
- register vec_u8 v21 __asm__("v21") = vcprm(2,3,s0,s3);
- register vec_u8 v22 __asm__("v22") = vcprm(2,s3,3,s2);
- register vec_u8 v23 __asm__("v23") = vcprm(0,1,s0,s1);
- register vec_u8 v24 __asm__("v24") = vcprm(2,3,s2,s3);
- register vec_u8 v25 __asm__("v25") = vcprm(2,3,0,1);
- register vec_u8 v26 __asm__("v26") = vcprm(1,2,s3,s0);
- register vec_u8 v27 __asm__("v27") = vcprm(0,3,s2,s1);
- register vec_u8 v28 __asm__("v28") = vcprm(0,2,s1,s3);
- register vec_u8 v29 __asm__("v29") = vcprm(1,3,s0,s2);
- register FFTSample *const*cos_tabs __asm__("r12") = ff_cos_tabs;
- register FFTComplex *zarg __asm__("r3") = z;
- __asm__(
- "mtctr %0 \n"
- "li "r(9)", 16 \n"
- "subi "r(1)","r(1) ",%1 \n"
- "bctrl \n"
- "addi "r(1)","r(1) ",%1 \n"
- ::"r"(ff_fft_dispatch_altivec[do_swizzle][s->nbits-2]), "i"(12*sizeof(void*)),
- "r"(zarg), "r"(cos_tabs),
- "v"(v14),"v"(v15),"v"(v16),"v"(v17),"v"(v18),"v"(v19),"v"(v20),"v"(v21),
- "v"(v22),"v"(v23),"v"(v24),"v"(v25),"v"(v26),"v"(v27),"v"(v28),"v"(v29)
- : "lr","ctr","r0","r4","r5","r6","r7","r8","r9","r10","r11",
- "v0","v1","v2","v3","v4","v5","v6","v7","v8","v9","v10","v11","v12","v13"
- );
-}
-
-static void ff_fft_calc_altivec(FFTContext *s, FFTComplex *z)
-{
- fft_dispatch(s, z, 1);
-}
-
static void ff_imdct_half_altivec(FFTContext *s, FFTSample *output, const FFTSample *input)
{
int j, k;
k--;
} while(k >= 0);
- fft_dispatch(s, (FFTComplex*)output, 0);
+ ff_fft_calc_altivec(s, (FFTComplex*)output);
/* post rotation + reordering */
j = -n32;
av_cold void ff_fft_init_altivec(FFTContext *s)
{
#if HAVE_GNU_AS
- s->fft_calc = ff_fft_calc_altivec;
+ s->fft_calc = ff_fft_calc_interleave_altivec;
s->imdct_calc = ff_imdct_calc_altivec;
s->imdct_half = ff_imdct_half_altivec;
#endif