void ff_vp3_idct_add_altivec(uint8_t *dst, int stride, DCTELEM block[64]) { LOAD_ZERO; vec_u8 t, vdst; vec_s16 vdst_16; vec_u8 vdst_mask = vec_mergeh(vec_splat_u8(-1), vec_lvsl(0, dst)); IDCT_START IDCT_1D(NOP, NOP) TRANSPOSE8(b0, b1, b2, b3, b4, b5, b6, b7); IDCT_1D(ADD8, SHIFT4) #define ADD(a)\ vdst = vec_ld(0, dst);\ vdst_16 = (vec_s16)vec_perm(vdst, zero_u8v, vdst_mask);\ vdst_16 = vec_adds(a, vdst_16);\ t = vec_packsu(vdst_16, vdst_16);\ vec_ste((vec_u32)t, 0, (unsigned int *)dst);\ vec_ste((vec_u32)t, 4, (unsigned int *)dst); ADD(b0) dst += stride; ADD(b1) dst += stride; ADD(b2) dst += stride; ADD(b3) dst += stride; ADD(b4) dst += stride; ADD(b5) dst += stride; ADD(b6) dst += stride; ADD(b7) }
void ff_vp3_idct_put_altivec(uint8_t *dst, int stride, DCTELEM block[64]) { vec_u8 t; IDCT_START // pixels are signed; so add 128*16 in addition to the normal 8 vec_s16 v2048 = vec_sl(vec_splat_s16(1), vec_splat_u16(11)); eight = vec_add(eight, v2048); IDCT_1D(NOP, NOP) TRANSPOSE8(b0, b1, b2, b3, b4, b5, b6, b7); IDCT_1D(ADD8, SHIFT4) #define PUT(a)\ t = vec_packsu(a, a);\ vec_ste((vec_u32)t, 0, (unsigned int *)dst);\ vec_ste((vec_u32)t, 4, (unsigned int *)dst); PUT(b0) dst += stride; PUT(b1) dst += stride; PUT(b2) dst += stride; PUT(b3) dst += stride; PUT(b4) dst += stride; PUT(b5) dst += stride; PUT(b6) dst += stride; PUT(b7) }
static void ff_h264_idct8_add_altivec( uint8_t *dst, DCTELEM *dct, int stride ) { vec_s16 s0, s1, s2, s3, s4, s5, s6, s7; vec_s16 d0, d1, d2, d3, d4, d5, d6, d7; vec_s16 idct0, idct1, idct2, idct3, idct4, idct5, idct6, idct7; vec_u8 perm_ldv = vec_lvsl(0, dst); vec_u8 perm_stv = vec_lvsr(8, dst); const vec_u16 onev = vec_splat_u16(1); const vec_u16 twov = vec_splat_u16(2); const vec_u16 sixv = vec_splat_u16(6); const vec_u8 sel = (vec_u8) { 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1 }; LOAD_ZERO; dct[0] += 32; // rounding for the >>6 at the end s0 = vec_ld(0x00, (int16_t *)dct); s1 = vec_ld(0x10, (int16_t *)dct); s2 = vec_ld(0x20, (int16_t *)dct); s3 = vec_ld(0x30, (int16_t *)dct); s4 = vec_ld(0x40, (int16_t *)dct); s5 = vec_ld(0x50, (int16_t *)dct); s6 = vec_ld(0x60, (int16_t *)dct); s7 = vec_ld(0x70, (int16_t *)dct); IDCT8_1D_ALTIVEC(s0, s1, s2, s3, s4, s5, s6, s7, d0, d1, d2, d3, d4, d5, d6, d7); TRANSPOSE8( d0, d1, d2, d3, d4, d5, d6, d7 ); IDCT8_1D_ALTIVEC(d0, d1, d2, d3, d4, d5, d6, d7, idct0, idct1, idct2, idct3, idct4, idct5, idct6, idct7); ALTIVEC_STORE_SUM_CLIP(&dst[0*stride], idct0, perm_ldv, perm_stv, sel); ALTIVEC_STORE_SUM_CLIP(&dst[1*stride], idct1, perm_ldv, perm_stv, sel); ALTIVEC_STORE_SUM_CLIP(&dst[2*stride], idct2, perm_ldv, perm_stv, sel); ALTIVEC_STORE_SUM_CLIP(&dst[3*stride], idct3, perm_ldv, perm_stv, sel); ALTIVEC_STORE_SUM_CLIP(&dst[4*stride], idct4, perm_ldv, perm_stv, sel); ALTIVEC_STORE_SUM_CLIP(&dst[5*stride], idct5, perm_ldv, perm_stv, sel); ALTIVEC_STORE_SUM_CLIP(&dst[6*stride], idct6, perm_ldv, perm_stv, sel); ALTIVEC_STORE_SUM_CLIP(&dst[7*stride], idct7, perm_ldv, perm_stv, sel); }
void ff_vp3_idct_altivec(DCTELEM block[64]) { IDCT_START IDCT_1D(NOP, NOP) TRANSPOSE8(b0, b1, b2, b3, b4, b5, b6, b7); IDCT_1D(ADD8, SHIFT4) vec_st(b0, 0x00, block); vec_st(b1, 0x10, block); vec_st(b2, 0x20, block); vec_st(b3, 0x30, block); vec_st(b4, 0x40, block); vec_st(b5, 0x50, block); vec_st(b6, 0x60, block); vec_st(b7, 0x70, block); }
static void vp3_idct_add_altivec(uint8_t *dst, int stride, int16_t block[64]) { LOAD_ZERO; vec_u8 t, vdst; vec_s16 vdst_16; vec_u8 vdst_mask = vec_mergeh(vec_splat_u8(-1), vec_lvsl(0, dst)); IDCT_START IDCT_1D(NOP, NOP) TRANSPOSE8(b0, b1, b2, b3, b4, b5, b6, b7); IDCT_1D(ADD8, SHIFT4) #if HAVE_BIGENDIAN #define GET_VDST16\ vdst = vec_ld(0, dst);\ vdst_16 = (vec_s16)vec_perm(vdst, zero_u8v, vdst_mask); #else #define GET_VDST16\ vdst = vec_vsx_ld(0,dst);\ vdst_16 = (vec_s16)vec_mergeh(vdst, zero_u8v); #endif #define ADD(a)\ GET_VDST16;\ vdst_16 = vec_adds(a, vdst_16);\ t = vec_packsu(vdst_16, vdst_16);\ vec_ste((vec_u32)t, 0, (unsigned int *)dst);\ vec_ste((vec_u32)t, 4, (unsigned int *)dst); ADD(b0) dst += stride; ADD(b1) dst += stride; ADD(b2) dst += stride; ADD(b3) dst += stride; ADD(b4) dst += stride; ADD(b5) dst += stride; ADD(b6) dst += stride; ADD(b7) memset(block, 0, sizeof(*block) * 64); }
static int dct_quantize_altivec(MpegEncContext* s, DCTELEM* data, int n, int qscale, int* overflow) { int lastNonZero; vector float row0, row1, row2, row3, row4, row5, row6, row7; vector float alt0, alt1, alt2, alt3, alt4, alt5, alt6, alt7; const vector float zero = (const vector float)FOUROF(0.); // used after quantize step int oldBaseValue = 0; // Load the data into the row/alt vectors { vector signed short data0, data1, data2, data3, data4, data5, data6, data7; data0 = vec_ld(0, data); data1 = vec_ld(16, data); data2 = vec_ld(32, data); data3 = vec_ld(48, data); data4 = vec_ld(64, data); data5 = vec_ld(80, data); data6 = vec_ld(96, data); data7 = vec_ld(112, data); // Transpose the data before we start TRANSPOSE8(data0, data1, data2, data3, data4, data5, data6, data7); // load the data into floating point vectors. We load // the high half of each row into the main row vectors // and the low half into the alt vectors. row0 = vec_ctf(vec_unpackh(data0), 0); alt0 = vec_ctf(vec_unpackl(data0), 0); row1 = vec_ctf(vec_unpackh(data1), 0); alt1 = vec_ctf(vec_unpackl(data1), 0); row2 = vec_ctf(vec_unpackh(data2), 0); alt2 = vec_ctf(vec_unpackl(data2), 0); row3 = vec_ctf(vec_unpackh(data3), 0); alt3 = vec_ctf(vec_unpackl(data3), 0); row4 = vec_ctf(vec_unpackh(data4), 0); alt4 = vec_ctf(vec_unpackl(data4), 0); row5 = vec_ctf(vec_unpackh(data5), 0); alt5 = vec_ctf(vec_unpackl(data5), 0); row6 = vec_ctf(vec_unpackh(data6), 0); alt6 = vec_ctf(vec_unpackl(data6), 0); row7 = vec_ctf(vec_unpackh(data7), 0); alt7 = vec_ctf(vec_unpackl(data7), 0); } // The following block could exist as a separate an altivec dct // function. However, if we put it inline, the DCT data can remain // in the vector local variables, as floats, which we'll use during the // quantize step... { const vector float vec_0_298631336 = (vector float)FOUROF(0.298631336f); const vector float vec_0_390180644 = (vector float)FOUROF(-0.390180644f); const vector float vec_0_541196100 = (vector float)FOUROF(0.541196100f); const vector float vec_0_765366865 = (vector float)FOUROF(0.765366865f); const vector float vec_0_899976223 = (vector float)FOUROF(-0.899976223f); const vector float vec_1_175875602 = (vector float)FOUROF(1.175875602f); const vector float vec_1_501321110 = (vector float)FOUROF(1.501321110f); const vector float vec_1_847759065 = (vector float)FOUROF(-1.847759065f); const vector float vec_1_961570560 = (vector float)FOUROF(-1.961570560f); const vector float vec_2_053119869 = (vector float)FOUROF(2.053119869f); const vector float vec_2_562915447 = (vector float)FOUROF(-2.562915447f); const vector float vec_3_072711026 = (vector float)FOUROF(3.072711026f); int whichPass, whichHalf; for(whichPass = 1; whichPass<=2; whichPass++) { for(whichHalf = 1; whichHalf<=2; whichHalf++) { vector float tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; vector float tmp10, tmp11, tmp12, tmp13; vector float z1, z2, z3, z4, z5; tmp0 = vec_add(row0, row7); // tmp0 = dataptr[0] + dataptr[7]; tmp7 = vec_sub(row0, row7); // tmp7 = dataptr[0] - dataptr[7]; tmp3 = vec_add(row3, row4); // tmp3 = dataptr[3] + dataptr[4]; tmp4 = vec_sub(row3, row4); // tmp4 = dataptr[3] - dataptr[4]; tmp1 = vec_add(row1, row6); // tmp1 = dataptr[1] + dataptr[6]; tmp6 = vec_sub(row1, row6); // tmp6 = dataptr[1] - dataptr[6]; tmp2 = vec_add(row2, row5); // tmp2 = dataptr[2] + dataptr[5]; tmp5 = vec_sub(row2, row5); // tmp5 = dataptr[2] - dataptr[5]; tmp10 = vec_add(tmp0, tmp3); // tmp10 = tmp0 + tmp3; tmp13 = vec_sub(tmp0, tmp3); // tmp13 = tmp0 - tmp3; tmp11 = vec_add(tmp1, tmp2); // tmp11 = tmp1 + tmp2; tmp12 = vec_sub(tmp1, tmp2); // tmp12 = tmp1 - tmp2; // dataptr[0] = (DCTELEM) ((tmp10 + tmp11) << PASS1_BITS); row0 = vec_add(tmp10, tmp11); // dataptr[4] = (DCTELEM) ((tmp10 - tmp11) << PASS1_BITS); row4 = vec_sub(tmp10, tmp11); // z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); z1 = vec_madd(vec_add(tmp12, tmp13), vec_0_541196100, (vector float)zero); // dataptr[2] = (DCTELEM) DESCALE(z1 + MULTIPLY(tmp13, FIX_0_765366865), // CONST_BITS-PASS1_BITS); row2 = vec_madd(tmp13, vec_0_765366865, z1); // dataptr[6] = (DCTELEM) DESCALE(z1 + MULTIPLY(tmp12, - FIX_1_847759065), // CONST_BITS-PASS1_BITS); row6 = vec_madd(tmp12, vec_1_847759065, z1); z1 = vec_add(tmp4, tmp7); // z1 = tmp4 + tmp7; z2 = vec_add(tmp5, tmp6); // z2 = tmp5 + tmp6; z3 = vec_add(tmp4, tmp6); // z3 = tmp4 + tmp6; z4 = vec_add(tmp5, tmp7); // z4 = tmp5 + tmp7; // z5 = MULTIPLY(z3 + z4, FIX_1_175875602); /* sqrt(2) * c3 */ z5 = vec_madd(vec_add(z3, z4), vec_1_175875602, (vector float)zero); // z3 = MULTIPLY(z3, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ z3 = vec_madd(z3, vec_1_961570560, z5); // z4 = MULTIPLY(z4, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ z4 = vec_madd(z4, vec_0_390180644, z5); // The following adds are rolled into the multiplies above // z3 = vec_add(z3, z5); // z3 += z5; // z4 = vec_add(z4, z5); // z4 += z5; // z2 = MULTIPLY(z2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ // Wow! It's actually more efficient to roll this multiply // into the adds below, even thought the multiply gets done twice! // z2 = vec_madd(z2, vec_2_562915447, (vector float)zero); // z1 = MULTIPLY(z1, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ // Same with this one... // z1 = vec_madd(z1, vec_0_899976223, (vector float)zero); // tmp4 = MULTIPLY(tmp4, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ // dataptr[7] = (DCTELEM) DESCALE(tmp4 + z1 + z3, CONST_BITS-PASS1_BITS); row7 = vec_madd(tmp4, vec_0_298631336, vec_madd(z1, vec_0_899976223, z3)); // tmp5 = MULTIPLY(tmp5, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ // dataptr[5] = (DCTELEM) DESCALE(tmp5 + z2 + z4, CONST_BITS-PASS1_BITS); row5 = vec_madd(tmp5, vec_2_053119869, vec_madd(z2, vec_2_562915447, z4)); // tmp6 = MULTIPLY(tmp6, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ // dataptr[3] = (DCTELEM) DESCALE(tmp6 + z2 + z3, CONST_BITS-PASS1_BITS); row3 = vec_madd(tmp6, vec_3_072711026, vec_madd(z2, vec_2_562915447, z3)); // tmp7 = MULTIPLY(tmp7, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ // dataptr[1] = (DCTELEM) DESCALE(tmp7 + z1 + z4, CONST_BITS-PASS1_BITS); row1 = vec_madd(z1, vec_0_899976223, vec_madd(tmp7, vec_1_501321110, z4)); // Swap the row values with the alts. If this is the first half, // this sets up the low values to be acted on in the second half. // If this is the second half, it puts the high values back in // the row values where they are expected to be when we're done. SWAP(row0, alt0); SWAP(row1, alt1); SWAP(row2, alt2); SWAP(row3, alt3); SWAP(row4, alt4); SWAP(row5, alt5); SWAP(row6, alt6); SWAP(row7, alt7); } if (whichPass == 1) { // transpose the data for the second pass // First, block transpose the upper right with lower left. SWAP(row4, alt0); SWAP(row5, alt1); SWAP(row6, alt2); SWAP(row7, alt3); // Now, transpose each block of four TRANSPOSE4(row0, row1, row2, row3); TRANSPOSE4(row4, row5, row6, row7); TRANSPOSE4(alt0, alt1, alt2, alt3); TRANSPOSE4(alt4, alt5, alt6, alt7); } } } // perform the quantize step, using the floating point data // still in the row/alt registers { const int* biasAddr; const vector signed int* qmat; vector float bias, negBias; if (s->mb_intra) { vector signed int baseVector; // We must cache element 0 in the intra case // (it needs special handling). baseVector = vec_cts(vec_splat(row0, 0), 0); vec_ste(baseVector, 0, &oldBaseValue); qmat = (vector signed int*)s->q_intra_matrix[qscale]; biasAddr = &(s->intra_quant_bias); } else { qmat = (vector signed int*)s->q_inter_matrix[qscale]; biasAddr = &(s->inter_quant_bias); } // Load the bias vector (We add 0.5 to the bias so that we're // rounding when we convert to int, instead of flooring.) { vector signed int biasInt; const vector float negOneFloat = (vector float)FOUROF(-1.0f); LOAD4(biasInt, biasAddr); bias = vec_ctf(biasInt, QUANT_BIAS_SHIFT); negBias = vec_madd(bias, negOneFloat, zero); } { vector float q0, q1, q2, q3, q4, q5, q6, q7; q0 = vec_ctf(qmat[0], QMAT_SHIFT); q1 = vec_ctf(qmat[2], QMAT_SHIFT); q2 = vec_ctf(qmat[4], QMAT_SHIFT); q3 = vec_ctf(qmat[6], QMAT_SHIFT); q4 = vec_ctf(qmat[8], QMAT_SHIFT); q5 = vec_ctf(qmat[10], QMAT_SHIFT); q6 = vec_ctf(qmat[12], QMAT_SHIFT); q7 = vec_ctf(qmat[14], QMAT_SHIFT); row0 = vec_sel(vec_madd(row0, q0, negBias), vec_madd(row0, q0, bias), vec_cmpgt(row0, zero)); row1 = vec_sel(vec_madd(row1, q1, negBias), vec_madd(row1, q1, bias), vec_cmpgt(row1, zero)); row2 = vec_sel(vec_madd(row2, q2, negBias), vec_madd(row2, q2, bias), vec_cmpgt(row2, zero)); row3 = vec_sel(vec_madd(row3, q3, negBias), vec_madd(row3, q3, bias), vec_cmpgt(row3, zero)); row4 = vec_sel(vec_madd(row4, q4, negBias), vec_madd(row4, q4, bias), vec_cmpgt(row4, zero)); row5 = vec_sel(vec_madd(row5, q5, negBias), vec_madd(row5, q5, bias), vec_cmpgt(row5, zero)); row6 = vec_sel(vec_madd(row6, q6, negBias), vec_madd(row6, q6, bias), vec_cmpgt(row6, zero)); row7 = vec_sel(vec_madd(row7, q7, negBias), vec_madd(row7, q7, bias), vec_cmpgt(row7, zero)); q0 = vec_ctf(qmat[1], QMAT_SHIFT); q1 = vec_ctf(qmat[3], QMAT_SHIFT); q2 = vec_ctf(qmat[5], QMAT_SHIFT); q3 = vec_ctf(qmat[7], QMAT_SHIFT); q4 = vec_ctf(qmat[9], QMAT_SHIFT); q5 = vec_ctf(qmat[11], QMAT_SHIFT); q6 = vec_ctf(qmat[13], QMAT_SHIFT); q7 = vec_ctf(qmat[15], QMAT_SHIFT); alt0 = vec_sel(vec_madd(alt0, q0, negBias), vec_madd(alt0, q0, bias), vec_cmpgt(alt0, zero)); alt1 = vec_sel(vec_madd(alt1, q1, negBias), vec_madd(alt1, q1, bias), vec_cmpgt(alt1, zero)); alt2 = vec_sel(vec_madd(alt2, q2, negBias), vec_madd(alt2, q2, bias), vec_cmpgt(alt2, zero)); alt3 = vec_sel(vec_madd(alt3, q3, negBias), vec_madd(alt3, q3, bias), vec_cmpgt(alt3, zero)); alt4 = vec_sel(vec_madd(alt4, q4, negBias), vec_madd(alt4, q4, bias), vec_cmpgt(alt4, zero)); alt5 = vec_sel(vec_madd(alt5, q5, negBias), vec_madd(alt5, q5, bias), vec_cmpgt(alt5, zero)); alt6 = vec_sel(vec_madd(alt6, q6, negBias), vec_madd(alt6, q6, bias), vec_cmpgt(alt6, zero)); alt7 = vec_sel(vec_madd(alt7, q7, negBias), vec_madd(alt7, q7, bias), vec_cmpgt(alt7, zero)); } } // Store the data back into the original block { vector signed short data0, data1, data2, data3, data4, data5, data6, data7; data0 = vec_pack(vec_cts(row0, 0), vec_cts(alt0, 0)); data1 = vec_pack(vec_cts(row1, 0), vec_cts(alt1, 0)); data2 = vec_pack(vec_cts(row2, 0), vec_cts(alt2, 0)); data3 = vec_pack(vec_cts(row3, 0), vec_cts(alt3, 0)); data4 = vec_pack(vec_cts(row4, 0), vec_cts(alt4, 0)); data5 = vec_pack(vec_cts(row5, 0), vec_cts(alt5, 0)); data6 = vec_pack(vec_cts(row6, 0), vec_cts(alt6, 0)); data7 = vec_pack(vec_cts(row7, 0), vec_cts(alt7, 0)); { // Clamp for overflow vector signed int max_q_int, min_q_int; vector signed short max_q, min_q; LOAD4(max_q_int, &(s->max_qcoeff)); LOAD4(min_q_int, &(s->min_qcoeff)); max_q = vec_pack(max_q_int, max_q_int); min_q = vec_pack(min_q_int, min_q_int); data0 = vec_max(vec_min(data0, max_q), min_q); data1 = vec_max(vec_min(data1, max_q), min_q); data2 = vec_max(vec_min(data2, max_q), min_q); data4 = vec_max(vec_min(data4, max_q), min_q); data5 = vec_max(vec_min(data5, max_q), min_q); data6 = vec_max(vec_min(data6, max_q), min_q); data7 = vec_max(vec_min(data7, max_q), min_q); } { vector bool char zero_01, zero_23, zero_45, zero_67; vector signed char scanIndexes_01, scanIndexes_23, scanIndexes_45, scanIndexes_67; vector signed char negOne = vec_splat_s8(-1); vector signed char* scanPtr = (vector signed char*)(s->intra_scantable.inverse); signed char lastNonZeroChar; // Determine the largest non-zero index. zero_01 = vec_pack(vec_cmpeq(data0, (vector signed short)zero), vec_cmpeq(data1, (vector signed short)zero)); zero_23 = vec_pack(vec_cmpeq(data2, (vector signed short)zero), vec_cmpeq(data3, (vector signed short)zero)); zero_45 = vec_pack(vec_cmpeq(data4, (vector signed short)zero), vec_cmpeq(data5, (vector signed short)zero)); zero_67 = vec_pack(vec_cmpeq(data6, (vector signed short)zero), vec_cmpeq(data7, (vector signed short)zero)); // 64 biggest values scanIndexes_01 = vec_sel(scanPtr[0], negOne, zero_01); scanIndexes_23 = vec_sel(scanPtr[1], negOne, zero_23); scanIndexes_45 = vec_sel(scanPtr[2], negOne, zero_45); scanIndexes_67 = vec_sel(scanPtr[3], negOne, zero_67); // 32 largest values scanIndexes_01 = vec_max(scanIndexes_01, scanIndexes_23); scanIndexes_45 = vec_max(scanIndexes_45, scanIndexes_67); // 16 largest values scanIndexes_01 = vec_max(scanIndexes_01, scanIndexes_45); // 8 largest values scanIndexes_01 = vec_max(vec_mergeh(scanIndexes_01, negOne), vec_mergel(scanIndexes_01, negOne)); // 4 largest values scanIndexes_01 = vec_max(vec_mergeh(scanIndexes_01, negOne), vec_mergel(scanIndexes_01, negOne)); // 2 largest values scanIndexes_01 = vec_max(vec_mergeh(scanIndexes_01, negOne), vec_mergel(scanIndexes_01, negOne)); // largest value scanIndexes_01 = vec_max(vec_mergeh(scanIndexes_01, negOne), vec_mergel(scanIndexes_01, negOne)); scanIndexes_01 = vec_splat(scanIndexes_01, 0); vec_ste(scanIndexes_01, 0, &lastNonZeroChar); lastNonZero = lastNonZeroChar; // While the data is still in vectors we check for the transpose IDCT permute // and handle it using the vector unit if we can. This is the permute used // by the altivec idct, so it is common when using the altivec dct. if ((lastNonZero > 0) && (s->dsp.idct_permutation_type == FF_TRANSPOSE_IDCT_PERM)) { TRANSPOSE8(data0, data1, data2, data3, data4, data5, data6, data7); } vec_st(data0, 0, data); vec_st(data1, 16, data); vec_st(data2, 32, data); vec_st(data3, 48, data); vec_st(data4, 64, data); vec_st(data5, 80, data); vec_st(data6, 96, data); vec_st(data7, 112, data); } } // special handling of block[0] if (s->mb_intra) { if (!s->h263_aic) { if (n < 4) oldBaseValue /= s->y_dc_scale; else oldBaseValue /= s->c_dc_scale; } // Divide by 8, rounding the result data[0] = (oldBaseValue + 4) >> 3; } // We handled the transpose permutation above and we don't // need to permute the "no" permutation case. if ((lastNonZero > 0) && (s->dsp.idct_permutation_type != FF_TRANSPOSE_IDCT_PERM) && (s->dsp.idct_permutation_type != FF_NO_IDCT_PERM)) { ff_block_permute(data, s->dsp.idct_permutation, s->intra_scantable.scantable, lastNonZero); } return lastNonZero; }
/** Do inverse transform on 8x4 part of block */ static void vc1_inv_trans_8x4_altivec(uint8_t *dest, int stride, int16_t *block) { vector signed short src0, src1, src2, src3, src4, src5, src6, src7; vector signed int s0, s1, s2, s3, s4, s5, s6, s7; vector signed int s8, s9, sA, sB, sC, sD, sE, sF; vector signed int t0, t1, t2, t3, t4, t5, t6, t7; const vector signed int vec_64 = vec_sl(vec_splat_s32(4), vec_splat_u32(4)); const vector unsigned int vec_7 = vec_splat_u32(7); const vector unsigned int vec_5 = vec_splat_u32(5); const vector unsigned int vec_4 = vec_splat_u32(4); const vector signed int vec_4s = vec_splat_s32(4); const vector unsigned int vec_3 = vec_splat_u32(3); const vector unsigned int vec_2 = vec_splat_u32(2); const vector unsigned int vec_1 = vec_splat_u32(1); vector unsigned char tmp; vector signed short tmp2, tmp3; vector unsigned char perm0, perm1, p0, p1, p; src0 = vec_ld( 0, block); src1 = vec_ld( 16, block); src2 = vec_ld( 32, block); src3 = vec_ld( 48, block); src4 = vec_ld( 64, block); src5 = vec_ld( 80, block); src6 = vec_ld( 96, block); src7 = vec_ld(112, block); TRANSPOSE8(src0, src1, src2, src3, src4, src5, src6, src7); s0 = vec_unpackl(src0); s1 = vec_unpackl(src1); s2 = vec_unpackl(src2); s3 = vec_unpackl(src3); s4 = vec_unpackl(src4); s5 = vec_unpackl(src5); s6 = vec_unpackl(src6); s7 = vec_unpackl(src7); s8 = vec_unpackh(src0); s9 = vec_unpackh(src1); sA = vec_unpackh(src2); sB = vec_unpackh(src3); sC = vec_unpackh(src4); sD = vec_unpackh(src5); sE = vec_unpackh(src6); sF = vec_unpackh(src7); STEP8(s0, s1, s2, s3, s4, s5, s6, s7, vec_4s); SHIFT_HOR8(s0, s1, s2, s3, s4, s5, s6, s7); STEP8(s8, s9, sA, sB, sC, sD, sE, sF, vec_4s); SHIFT_HOR8(s8, s9, sA, sB, sC, sD, sE, sF); src0 = vec_pack(s8, s0); src1 = vec_pack(s9, s1); src2 = vec_pack(sA, s2); src3 = vec_pack(sB, s3); src4 = vec_pack(sC, s4); src5 = vec_pack(sD, s5); src6 = vec_pack(sE, s6); src7 = vec_pack(sF, s7); TRANSPOSE8(src0, src1, src2, src3, src4, src5, src6, src7); s0 = vec_unpackh(src0); s1 = vec_unpackh(src1); s2 = vec_unpackh(src2); s3 = vec_unpackh(src3); s8 = vec_unpackl(src0); s9 = vec_unpackl(src1); sA = vec_unpackl(src2); sB = vec_unpackl(src3); STEP4(s0, s1, s2, s3, vec_64); SHIFT_VERT4(s0, s1, s2, s3); STEP4(s8, s9, sA, sB, vec_64); SHIFT_VERT4(s8, s9, sA, sB); src0 = vec_pack(s0, s8); src1 = vec_pack(s1, s9); src2 = vec_pack(s2, sA); src3 = vec_pack(s3, sB); p0 = vec_lvsl (0, dest); p1 = vec_lvsl (stride, dest); p = vec_splat_u8 (-1); perm0 = vec_mergeh (p, p0); perm1 = vec_mergeh (p, p1); #define ADD(dest,src,perm) \ /* *(uint64_t *)&tmp = *(uint64_t *)dest; */ \ tmp = vec_ld (0, dest); \ tmp2 = (vector signed short)vec_perm (tmp, vec_splat_u8(0), perm); \ tmp3 = vec_adds (tmp2, src); \ tmp = vec_packsu (tmp3, tmp3); \ vec_ste ((vector unsigned int)tmp, 0, (unsigned int *)dest); \ vec_ste ((vector unsigned int)tmp, 4, (unsigned int *)dest); ADD (dest, src0, perm0) dest += stride; ADD (dest, src1, perm1) dest += stride; ADD (dest, src2, perm0) dest += stride; ADD (dest, src3, perm1) }
/** Do inverse transform on 8x8 block */ static void vc1_inv_trans_8x8_altivec(int16_t block[64]) { vector signed short src0, src1, src2, src3, src4, src5, src6, src7; vector signed int s0, s1, s2, s3, s4, s5, s6, s7; vector signed int s8, s9, sA, sB, sC, sD, sE, sF; vector signed int t0, t1, t2, t3, t4, t5, t6, t7; const vector signed int vec_64 = vec_sl(vec_splat_s32(4), vec_splat_u32(4)); const vector unsigned int vec_7 = vec_splat_u32(7); const vector unsigned int vec_4 = vec_splat_u32(4); const vector signed int vec_4s = vec_splat_s32(4); const vector unsigned int vec_3 = vec_splat_u32(3); const vector unsigned int vec_2 = vec_splat_u32(2); const vector signed int vec_1s = vec_splat_s32(1); const vector unsigned int vec_1 = vec_splat_u32(1); src0 = vec_ld( 0, block); src1 = vec_ld( 16, block); src2 = vec_ld( 32, block); src3 = vec_ld( 48, block); src4 = vec_ld( 64, block); src5 = vec_ld( 80, block); src6 = vec_ld( 96, block); src7 = vec_ld(112, block); s0 = vec_unpackl(src0); s1 = vec_unpackl(src1); s2 = vec_unpackl(src2); s3 = vec_unpackl(src3); s4 = vec_unpackl(src4); s5 = vec_unpackl(src5); s6 = vec_unpackl(src6); s7 = vec_unpackl(src7); s8 = vec_unpackh(src0); s9 = vec_unpackh(src1); sA = vec_unpackh(src2); sB = vec_unpackh(src3); sC = vec_unpackh(src4); sD = vec_unpackh(src5); sE = vec_unpackh(src6); sF = vec_unpackh(src7); STEP8(s0, s1, s2, s3, s4, s5, s6, s7, vec_4s); SHIFT_HOR8(s0, s1, s2, s3, s4, s5, s6, s7); STEP8(s8, s9, sA, sB, sC, sD, sE, sF, vec_4s); SHIFT_HOR8(s8, s9, sA, sB, sC, sD, sE, sF); src0 = vec_pack(s8, s0); src1 = vec_pack(s9, s1); src2 = vec_pack(sA, s2); src3 = vec_pack(sB, s3); src4 = vec_pack(sC, s4); src5 = vec_pack(sD, s5); src6 = vec_pack(sE, s6); src7 = vec_pack(sF, s7); TRANSPOSE8(src0, src1, src2, src3, src4, src5, src6, src7); s0 = vec_unpackl(src0); s1 = vec_unpackl(src1); s2 = vec_unpackl(src2); s3 = vec_unpackl(src3); s4 = vec_unpackl(src4); s5 = vec_unpackl(src5); s6 = vec_unpackl(src6); s7 = vec_unpackl(src7); s8 = vec_unpackh(src0); s9 = vec_unpackh(src1); sA = vec_unpackh(src2); sB = vec_unpackh(src3); sC = vec_unpackh(src4); sD = vec_unpackh(src5); sE = vec_unpackh(src6); sF = vec_unpackh(src7); STEP8(s0, s1, s2, s3, s4, s5, s6, s7, vec_64); SHIFT_VERT8(s0, s1, s2, s3, s4, s5, s6, s7); STEP8(s8, s9, sA, sB, sC, sD, sE, sF, vec_64); SHIFT_VERT8(s8, s9, sA, sB, sC, sD, sE, sF); src0 = vec_pack(s8, s0); src1 = vec_pack(s9, s1); src2 = vec_pack(sA, s2); src3 = vec_pack(sB, s3); src4 = vec_pack(sC, s4); src5 = vec_pack(sD, s5); src6 = vec_pack(sE, s6); src7 = vec_pack(sF, s7); vec_st(src0, 0, block); vec_st(src1, 16, block); vec_st(src2, 32, block); vec_st(src3, 48, block); vec_st(src4, 64, block); vec_st(src5, 80, block); vec_st(src6, 96, block); vec_st(src7,112, block); }