Commit 53fe16e5 authored by sasshka's avatar sasshka Committed by Henrik Gramner
Browse files

ppc: Optimize add8x8_idct_dc

parent 62dcebbc
......@@ -294,29 +294,64 @@ void x264_sub16x16_dct8_altivec( int16_t dct[4][64], uint8_t *pix1, uint8_t *pix
vec_vsx_st( dcvsum8, 0, dest ); \
}
static void idct8_dc_altivec( uint8_t *dst, vec_s16_t dcv )
{
LOAD_ZERO;
ALTIVEC_STORE8_DC_SUM_CLIP( &dst[0*FDEC_STRIDE], dcv );
ALTIVEC_STORE8_DC_SUM_CLIP( &dst[1*FDEC_STRIDE], dcv );
ALTIVEC_STORE8_DC_SUM_CLIP( &dst[2*FDEC_STRIDE], dcv );
ALTIVEC_STORE8_DC_SUM_CLIP( &dst[3*FDEC_STRIDE], dcv );
}
void x264_add8x8_idct_dc_altivec( uint8_t *p_dst, int16_t dct[4] )
{
vec_s16_t dcv;
vec_s16_t dcv0, dcv1;
vec_s16_t v32 = vec_sl( vec_splat_s16( 8 ), vec_splat_u16( 2 ) );
vec_u16_t v6 = vec_splat_u16( 6 );
vec_s16_t dctv = vec_vsx_ld( 0, dct );
vec_s16_t dctv = vec_ld( 0, dct );
vec_u8_t dstv0, dstv1, dstv2, dstv3, dstv4, dstv5, dstv6, dstv7;
vec_s16_t dcvsum0, dcvsum1, dcvsum2, dcvsum3, dcvsum4, dcvsum5, dcvsum6, dcvsum7;
vec_u8_t dcvsum8_0, dcvsum8_1, dcvsum8_2, dcvsum8_3, dcvsum8_4, dcvsum8_5, dcvsum8_6, dcvsum8_7;
LOAD_ZERO;
dctv = vec_sra( vec_add( dctv, v32 ), v6 );
dcv = (vec_s16_t)vec_mergeh( (vec_s32_t)vec_splat( dctv, 0 ), (vec_s32_t)vec_splat( dctv, 1 ) );
dcv = (vec_s16_t)vec_mergeh( (vec_s32_t)dcv, (vec_s32_t)dcv );
idct8_dc_altivec( &p_dst[0], dcv );
dcv = (vec_s16_t)vec_mergeh( (vec_s32_t)vec_splat( dctv, 2 ), (vec_s32_t)vec_splat( dctv, 3 ) );
dcv = (vec_s16_t)vec_mergeh( (vec_s32_t)dcv, (vec_s32_t)dcv );
idct8_dc_altivec( &p_dst[4*FDEC_STRIDE+0], dcv );
dcv1 = (vec_s16_t)vec_mergeh( dctv, dctv );
dcv0 = (vec_s16_t)vec_mergeh( (vec_s32_t)dcv1, (vec_s32_t)dcv1 );
dcv1 = (vec_s16_t)vec_mergel( (vec_s32_t)dcv1, (vec_s32_t)dcv1 );
dstv0 = vec_vsx_ld( 0, p_dst );
dstv4 = vec_vsx_ld( 0, p_dst + 4*FDEC_STRIDE );
dstv1 = vec_vsx_ld( 0, p_dst + 1*FDEC_STRIDE );
dstv5 = vec_vsx_ld( 0, p_dst + 4*FDEC_STRIDE + 1*FDEC_STRIDE );
dstv2 = vec_vsx_ld( 0, p_dst + 2*FDEC_STRIDE);
dstv6 = vec_vsx_ld( 0, p_dst + 4*FDEC_STRIDE + 2*FDEC_STRIDE );
dstv3 = vec_vsx_ld( 0, p_dst + 3*FDEC_STRIDE);
dstv7 = vec_vsx_ld( 0, p_dst + 4*FDEC_STRIDE + 3*FDEC_STRIDE );
vec_s16_t s0 = vec_u8_to_s16_h( dstv0 );
vec_s16_t s1 = vec_u8_to_s16_h( dstv4 );
vec_s16_t s2 = vec_u8_to_s16_h( dstv1 );
vec_s16_t s3 = vec_u8_to_s16_h( dstv5 );
vec_s16_t s4 = vec_u8_to_s16_h( dstv2 );
vec_s16_t s5 = vec_u8_to_s16_h( dstv6 );
vec_s16_t s6 = vec_u8_to_s16_h( dstv3 );
vec_s16_t s7 = vec_u8_to_s16_h( dstv7 );
dcvsum0 = vec_adds( dcv0, s0 );
dcvsum4 = vec_adds( dcv1, s1 );
dcvsum1 = vec_adds( dcv0, s2 );
dcvsum5 = vec_adds( dcv1, s3 );
dcvsum2 = vec_adds( dcv0, s4 );
dcvsum6 = vec_adds( dcv1, s5 );
dcvsum3 = vec_adds( dcv0, s6 );
dcvsum7 = vec_adds( dcv1, s7 );
dcvsum8_0 = vec_packsu( dcvsum0, vec_u8_to_s16_l( dstv0 ) );
dcvsum8_1 = vec_packsu( dcvsum1, vec_u8_to_s16_l( dstv1 ) );
dcvsum8_2 = vec_packsu( dcvsum2, vec_u8_to_s16_l( dstv2 ) );
dcvsum8_3 = vec_packsu( dcvsum3, vec_u8_to_s16_l( dstv3 ) );
dcvsum8_4 = vec_packsu( dcvsum4, vec_u8_to_s16_l( dstv4 ) );
dcvsum8_5 = vec_packsu( dcvsum5, vec_u8_to_s16_l( dstv5 ) );
dcvsum8_6 = vec_packsu( dcvsum6, vec_u8_to_s16_l( dstv6 ) );
dcvsum8_7 = vec_packsu( dcvsum7, vec_u8_to_s16_l( dstv7 ) );
vec_vsx_st( dcvsum8_0, 0, p_dst );
vec_vsx_st( dcvsum8_4, 0, p_dst + 4*FDEC_STRIDE );
vec_vsx_st( dcvsum8_1, 0, p_dst + 1*FDEC_STRIDE );
vec_vsx_st( dcvsum8_5, 0, p_dst + 4*FDEC_STRIDE + 1*FDEC_STRIDE );
vec_vsx_st( dcvsum8_2, 0, p_dst + 2*FDEC_STRIDE );
vec_vsx_st( dcvsum8_6, 0, p_dst + 4*FDEC_STRIDE + 2*FDEC_STRIDE );
vec_vsx_st( dcvsum8_3, 0, p_dst + 3*FDEC_STRIDE );
vec_vsx_st( dcvsum8_7, 0, p_dst + 4*FDEC_STRIDE + 3*FDEC_STRIDE );
}
#define IDCT_1D_ALTIVEC(s0, s1, s2, s3, d0, d1, d2, d3) \
......
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