; ; Copyright (c) 2010 The WebM project authors. All Rights Reserved. ; ; Use of this source code is governed by a BSD-style license ; that can be found in the LICENSE file in the root of the source ; tree. An additional intellectual property rights grant can be found ; in the file PATENTS. All contributing project authors may ; be found in the AUTHORS file in the root of the source tree. ; %include "third_party/x86inc/x86inc.asm" SECTION_RODATA pw_1: times 8 dw 1 SECTION .text %macro QUANTIZE_FN 2 cglobal quantize_%1, 0, %2, 15, coeff, ncoeff, skip, zbin, round, quant, \ shift, qcoeff, dqcoeff, dequant, zbin_oq, \ eob, scan, iscan cmp dword skipm, 0 jne .blank ; actual quantize loop - setup pointers, rounders, etc. movifnidn coeffq, coeffmp movifnidn ncoeffq, ncoeffmp mov r2, dequantmp movifnidn zbinq, zbinmp movifnidn roundq, roundmp movifnidn quantq, quantmp movd m4, dword zbin_oqm ; m4 = zbin_oq mova m0, [zbinq] ; m0 = zbin punpcklwd m4, m4 mova m1, [roundq] ; m1 = round pshufd m4, m4, 0 mova m2, [quantq] ; m2 = quant paddw m0, m4 ; m0 = zbin + zbin_oq %ifidn %1, b_32x32 pcmpeqw m5, m5 psrlw m5, 15 paddw m0, m5 paddw m1, m5 psrlw m0, 1 ; m0 = (m0 + 1) / 2 psrlw m1, 1 ; m1 = (m1 + 1) / 2 %endif mova m3, [r2q] ; m3 = dequant psubw m0, [pw_1] mov r2, shiftmp mov r3, qcoeffmp mova m4, [r2] ; m4 = shift mov r4, dqcoeffmp mov r5, iscanmp %ifidn %1, b_32x32 psllw m4, 1 %endif pxor m5, m5 ; m5 = dedicated zero DEFINE_ARGS coeff, ncoeff, d1, qcoeff, dqcoeff, iscan, d2, d3, d4, d5, d6, eob lea coeffq, [ coeffq+ncoeffq*2] lea iscanq, [ iscanq+ncoeffq*2] lea qcoeffq, [ qcoeffq+ncoeffq*2] lea dqcoeffq, [dqcoeffq+ncoeffq*2] neg ncoeffq ; get DC and first 15 AC coeffs mova m9, [ coeffq+ncoeffq*2+ 0] ; m9 = c[i] mova m10, [ coeffq+ncoeffq*2+16] ; m10 = c[i] pabsw m6, m9 ; m6 = abs(m9) pabsw m11, m10 ; m11 = abs(m10) pcmpgtw m7, m6, m0 ; m7 = c[i] >= zbin punpckhqdq m0, m0 pcmpgtw m12, m11, m0 ; m12 = c[i] >= zbin paddsw m6, m1 ; m6 += round punpckhqdq m1, m1 paddsw m11, m1 ; m11 += round pmulhw m8, m6, m2 ; m8 = m6*q>>16 punpckhqdq m2, m2 pmulhw m13, m11, m2 ; m13 = m11*q>>16 paddw m8, m6 ; m8 += m6 paddw m13, m11 ; m13 += m11 pmulhw m8, m4 ; m8 = m8*qsh>>16 punpckhqdq m4, m4 pmulhw m13, m4 ; m13 = m13*qsh>>16 psignw m8, m9 ; m8 = reinsert sign psignw m13, m10 ; m13 = reinsert sign pand m8, m7 pand m13, m12 mova [qcoeffq+ncoeffq*2+ 0], m8 mova [qcoeffq+ncoeffq*2+16], m13 %ifidn %1, b_32x32 pabsw m8, m8 pabsw m13, m13 %endif pmullw m8, m3 ; dqc[i] = qc[i] * q punpckhqdq m3, m3 pmullw m13, m3 ; dqc[i] = qc[i] * q %ifidn %1, b_32x32 psrlw m8, 1 psrlw m13, 1 psignw m8, m9 psignw m13, m10 %endif mova [dqcoeffq+ncoeffq*2+ 0], m8 mova [dqcoeffq+ncoeffq*2+16], m13 pcmpeqw m8, m5 ; m8 = c[i] == 0 pcmpeqw m13, m5 ; m13 = c[i] == 0 mova m6, [ iscanq+ncoeffq*2+ 0] ; m6 = scan[i] mova m11, [ iscanq+ncoeffq*2+16] ; m11 = scan[i] psubw m6, m7 ; m6 = scan[i] + 1 psubw m11, m12 ; m11 = scan[i] + 1 pandn m8, m6 ; m8 = max(eob) pandn m13, m11 ; m13 = max(eob) pmaxsw m8, m13 add ncoeffq, mmsize jz .accumulate_eob .ac_only_loop: mova m9, [ coeffq+ncoeffq*2+ 0] ; m9 = c[i] mova m10, [ coeffq+ncoeffq*2+16] ; m10 = c[i] pabsw m6, m9 ; m6 = abs(m9) pabsw m11, m10 ; m11 = abs(m10) pcmpgtw m7, m6, m0 ; m7 = c[i] >= zbin pcmpgtw m12, m11, m0 ; m12 = c[i] >= zbin %ifidn %1, b_32x32 pmovmskb r6, m7 pmovmskb r2, m12 or r6, r2 jz .skip_iter %endif paddsw m6, m1 ; m6 += round paddsw m11, m1 ; m11 += round pmulhw m14, m6, m2 ; m14 = m6*q>>16 pmulhw m13, m11, m2 ; m13 = m11*q>>16 paddw m14, m6 ; m14 += m6 paddw m13, m11 ; m13 += m11 pmulhw m14, m4 ; m14 = m14*qsh>>16 pmulhw m13, m4 ; m13 = m13*qsh>>16 psignw m14, m9 ; m14 = reinsert sign psignw m13, m10 ; m13 = reinsert sign pand m14, m7 pand m13, m12 mova [qcoeffq+ncoeffq*2+ 0], m14 mova [qcoeffq+ncoeffq*2+16], m13 %ifidn %1, b_32x32 pabsw m14, m14 pabsw m13, m13 %endif pmullw m14, m3 ; dqc[i] = qc[i] * q pmullw m13, m3 ; dqc[i] = qc[i] * q %ifidn %1, b_32x32 psrlw m14, 1 psrlw m13, 1 psignw m14, m9 psignw m13, m10 %endif mova [dqcoeffq+ncoeffq*2+ 0], m14 mova [dqcoeffq+ncoeffq*2+16], m13 pcmpeqw m14, m5 ; m14 = c[i] == 0 pcmpeqw m13, m5 ; m13 = c[i] == 0 mova m6, [ iscanq+ncoeffq*2+ 0] ; m6 = scan[i] mova m11, [ iscanq+ncoeffq*2+16] ; m11 = scan[i] psubw m6, m7 ; m6 = scan[i] + 1 psubw m11, m12 ; m11 = scan[i] + 1 pandn m14, m6 ; m14 = max(eob) pandn m13, m11 ; m13 = max(eob) pmaxsw m8, m14 pmaxsw m8, m13 add ncoeffq, mmsize jl .ac_only_loop %ifidn %1, b_32x32 jmp .accumulate_eob .skip_iter: mova [qcoeffq+ncoeffq*2+ 0], m5 mova [qcoeffq+ncoeffq*2+16], m5 mova [dqcoeffq+ncoeffq*2+ 0], m5 mova [dqcoeffq+ncoeffq*2+16], m5 add ncoeffq, mmsize jl .ac_only_loop %endif .accumulate_eob: ; horizontally accumulate/max eobs and write into [eob] memory pointer mov r2, eobmp pshufd m7, m8, 0xe pmaxsw m8, m7 pshuflw m7, m8, 0xe pmaxsw m8, m7 pshuflw m7, m8, 0x1 pmaxsw m8, m7 pextrw [r2], m8, 0 RET ; skip-block, i.e. just write all zeroes .blank: mov r0, dqcoeffmp movifnidn ncoeffq, ncoeffmp mov r2, qcoeffmp mov r3, eobmp DEFINE_ARGS dqcoeff, ncoeff, qcoeff, eob lea dqcoeffq, [dqcoeffq+ncoeffq*2] lea qcoeffq, [ qcoeffq+ncoeffq*2] neg ncoeffq pxor m7, m7 .blank_loop: mova [dqcoeffq+ncoeffq*2+ 0], m7 mova [dqcoeffq+ncoeffq*2+16], m7 mova [qcoeffq+ncoeffq*2+ 0], m7 mova [qcoeffq+ncoeffq*2+16], m7 add ncoeffq, mmsize jl .blank_loop mov word [eobq], 0 RET %endmacro INIT_XMM ssse3 QUANTIZE_FN b, 6 QUANTIZE_FN b_32x32, 7