diff options
Diffstat (limited to 'vpx_dsp/ppc/sad_vsx.c')
| -rw-r--r-- | vpx_dsp/ppc/sad_vsx.c | 72 |
1 files changed, 27 insertions, 45 deletions
diff --git a/vpx_dsp/ppc/sad_vsx.c b/vpx_dsp/ppc/sad_vsx.c index b41c05b48..18673f682 100644 --- a/vpx_dsp/ppc/sad_vsx.c +++ b/vpx_dsp/ppc/sad_vsx.c @@ -17,19 +17,11 @@ #include "vpx/vpx_integer.h" #include "vpx_ports/mem.h" -#define PROCESS16(offset) \ - v_a = vec_vsx_ld(offset, a); \ - v_b = vec_vsx_ld(offset, b); \ - v_ah = unpack_to_s16_h(v_a); \ - v_al = unpack_to_s16_l(v_a); \ - v_bh = unpack_to_s16_h(v_b); \ - v_bl = unpack_to_s16_l(v_b); \ - v_subh = vec_sub(v_ah, v_bh); \ - v_subl = vec_sub(v_al, v_bl); \ - v_absh = vec_abs(v_subh); \ - v_absl = vec_abs(v_subl); \ - v_sad = vec_sum4s(v_absh, v_sad); \ - v_sad = vec_sum4s(v_absl, v_sad); +#define PROCESS16(offset) \ + v_a = vec_vsx_ld(offset, a); \ + v_b = vec_vsx_ld(offset, b); \ + v_abs = vec_sub(vec_max(v_a, v_b), vec_min(v_a, v_b)); \ + v_sad = vec_sum4s(v_abs, v_sad); #define SAD8(height) \ unsigned int vpx_sad8x##height##_vsx(const uint8_t *a, int a_stride, \ @@ -39,11 +31,7 @@ uint32x4_t v_sad = vec_zeros_u32; \ \ do { \ - v_a = vec_vsx_ld(0, a); \ - v_b = vec_vsx_ld(0, b); \ - \ - v_abs = vec_sub(vec_max(v_a, v_b), vec_min(v_a, v_b)); \ - v_sad = vec_sum4s(v_abs, v_sad); \ + PROCESS16(0) \ \ a += a_stride; \ b += b_stride; \ @@ -56,54 +44,48 @@ #define SAD16(height) \ unsigned int vpx_sad16x##height##_vsx(const uint8_t *a, int a_stride, \ const uint8_t *b, int b_stride) { \ - int y; \ - unsigned int sad[4]; \ - uint8x16_t v_a, v_b; \ - int16x8_t v_ah, v_al, v_bh, v_bl, v_absh, v_absl, v_subh, v_subl; \ - int32x4_t v_sad = vec_splat_s32(0); \ + int y = 0; \ + uint8x16_t v_a, v_b, v_abs; \ + uint32x4_t v_sad = vec_zeros_u32; \ \ - for (y = 0; y < height; y++) { \ + do { \ PROCESS16(0); \ \ a += a_stride; \ b += b_stride; \ - } \ - vec_vsx_st((uint32x4_t)v_sad, 0, sad); \ + y++; \ + } while (y < height); \ \ - return sad[3] + sad[2] + sad[1] + sad[0]; \ + return v_sad[3] + v_sad[2] + v_sad[1] + v_sad[0]; \ } #define SAD32(height) \ unsigned int vpx_sad32x##height##_vsx(const uint8_t *a, int a_stride, \ const uint8_t *b, int b_stride) { \ - int y; \ - unsigned int sad[4]; \ - uint8x16_t v_a, v_b; \ - int16x8_t v_ah, v_al, v_bh, v_bl, v_absh, v_absl, v_subh, v_subl; \ - int32x4_t v_sad = vec_splat_s32(0); \ + int y = 0; \ + uint8x16_t v_a, v_b, v_abs; \ + uint32x4_t v_sad = vec_zeros_u32; \ \ - for (y = 0; y < height; y++) { \ + do { \ PROCESS16(0); \ PROCESS16(16); \ \ a += a_stride; \ b += b_stride; \ - } \ - vec_vsx_st((uint32x4_t)v_sad, 0, sad); \ + y++; \ + } while (y < height); \ \ - return sad[3] + sad[2] + sad[1] + sad[0]; \ + return v_sad[3] + v_sad[2] + v_sad[1] + v_sad[0]; \ } #define SAD64(height) \ unsigned int vpx_sad64x##height##_vsx(const uint8_t *a, int a_stride, \ const uint8_t *b, int b_stride) { \ - int y; \ - unsigned int sad[4]; \ - uint8x16_t v_a, v_b; \ - int16x8_t v_ah, v_al, v_bh, v_bl, v_absh, v_absl, v_subh, v_subl; \ - int32x4_t v_sad = vec_splat_s32(0); \ + int y = 0; \ + uint8x16_t v_a, v_b, v_abs; \ + uint32x4_t v_sad = vec_zeros_u32; \ \ - for (y = 0; y < height; y++) { \ + do { \ PROCESS16(0); \ PROCESS16(16); \ PROCESS16(32); \ @@ -111,10 +93,10 @@ \ a += a_stride; \ b += b_stride; \ - } \ - vec_vsx_st((uint32x4_t)v_sad, 0, sad); \ + y++; \ + } while (y < height); \ \ - return sad[3] + sad[2] + sad[1] + sad[0]; \ + return v_sad[3] + v_sad[2] + v_sad[1] + v_sad[0]; \ } SAD8(4); |