928 lines
36 KiB
C++
928 lines
36 KiB
C++
// Copyright (c) 2014-2015 The Chromium Authors. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in
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// the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google, Inc. nor the names of its contributors
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// may be used to endorse or promote products derived from this
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// software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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// SUCH DAMAGE.
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#include "convolver.h"
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#include <algorithm>
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#include "skia/include/core/SkTypes.h"
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#if defined(_MIPS_ARCH_LOONGSON3A)
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#include "MMIHelpers.h"
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namespace skia {
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// Convolves horizontally along a single row. The row data is given in
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// |src_data| and continues for the num_values() of the filter.
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void ConvolveHorizontally_LS3(const unsigned char* src_data,
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const ConvolutionFilter1D& filter,
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unsigned char* out_row) {
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int num_values = filter.num_values();
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int tmp, filter_offset, filter_length;
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double zero, mask[4], shuf_50, shuf_fa;
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asm volatile (
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".set push \n\t"
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".set arch=loongson3a \n\t"
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"xor %[zero], %[zero], %[zero] \n\t"
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// |mask| will be used to decimate all extra filter coefficients that are
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// loaded by SIMD when |filter_length| is not divisible by 4.
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// mask[0] is not used in following algorithm.
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"li %[tmp], 1 \n\t"
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"dsll32 %[tmp], 0x10 \n\t"
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"daddiu %[tmp], -1 \n\t"
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"dmtc1 %[tmp], %[mask3] \n\t"
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"dsrl %[tmp], 0x10 \n\t"
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"mtc1 %[tmp], %[mask2] \n\t"
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"dsrl %[tmp], 0x10 \n\t"
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"mtc1 %[tmp], %[mask1] \n\t"
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"ori %[tmp], $0, 0x50 \n\t"
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"mtc1 %[tmp], %[shuf_50] \n\t"
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"ori %[tmp], $0, 0xfa \n\t"
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"mtc1 %[tmp], %[shuf_fa] \n\t"
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".set pop \n\t"
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:[zero]"=f"(zero), [mask1]"=f"(mask[1]),
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[mask2]"=f"(mask[2]), [mask3]"=f"(mask[3]),
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[shuf_50]"=f"(shuf_50), [shuf_fa]"=f"(shuf_fa),
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[tmp]"=&r"(tmp)
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);
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// Output one pixel each iteration, calculating all channels (RGBA) together.
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for (int out_x = 0; out_x < num_values; out_x++) {
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const ConvolutionFilter1D::Fixed* filter_values =
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filter.FilterForValue(out_x, &filter_offset, &filter_length);
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double accumh, accuml;
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// Compute the first pixel in this row that the filter affects. It will
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// touch |filter_length| pixels (4 bytes each) after this.
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const void *row_to_filter =
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reinterpret_cast<const void*>(&src_data[filter_offset << 2]);
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asm volatile (
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".set push \n\t"
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".set arch=loongson3a \n\t"
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_mm_xor(accum, accum, accum)
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".set pop \n\t"
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:[accumh]"=f"(accumh), [accuml]"=f"(accuml)
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);
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// We will load and accumulate with four coefficients per iteration.
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for (int filter_x = 0; filter_x < filter_length >> 2; filter_x++) {
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double src16h, src16l, mul_hih, mul_hil, mul_loh, mul_lol;
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double coeffh, coeffl, src8h, src8l, th, tl, coeff16h, coeff16l;
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asm volatile (
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".set push \n\t"
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".set arch=loongson3a \n\t"
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// Load 4 coefficients => duplicate 1st and 2nd of them for all channels.
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// [16] xx xx xx xx c3 c2 c1 c0
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"gsldlc1 %[coeffl], 7(%[fval]) \n\t"
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"gsldrc1 %[coeffl], (%[fval]) \n\t"
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"xor %[coeffh], %[coeffh], %[coeffh] \n\t"
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// [16] xx xx xx xx c1 c1 c0 c0
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_mm_pshuflh(coeff16, coeff, shuf_50)
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// [16] c1 c1 c1 c1 c0 c0 c0 c0
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_mm_punpcklhw(coeff16, coeff16, coeff16)
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// Load four pixels => unpack the first two pixels to 16 bits =>
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// multiply with coefficients => accumulate the convolution result.
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// [8] a3 b3 g3 r3 a2 b2 g2 r2 a1 b1 g1 r1 a0 b0 g0 r0
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"gsldlc1 %[src8h], 0xf(%[rtf]) \n\t"
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"gsldrc1 %[src8h], 0x8(%[rtf]) \n\t"
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"gsldlc1 %[src8l], 0x7(%[rtf]) \n\t"
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"gsldrc1 %[src8l], 0x0(%[rtf]) \n\t"
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// [16] a1 b1 g1 r1 a0 b0 g0 r0
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_mm_punpcklbh(src16, src8, zero)
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_mm_pmulhh(mul_hi, src16, coeff16)
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_mm_pmullh(mul_lo, src16, coeff16)
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// [32] a0*c0 b0*c0 g0*c0 r0*c0
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_mm_punpcklhw(t, mul_lo, mul_hi)
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_mm_paddw(accum, accum, t)
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// [32] a1*c1 b1*c1 g1*c1 r1*c1
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_mm_punpckhhw(t, mul_lo, mul_hi)
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_mm_paddw(accum, accum, t)
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// Duplicate 3rd and 4th coefficients for all channels =>
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// unpack the 3rd and 4th pixels to 16 bits => multiply with coefficients
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// => accumulate the convolution results.
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// [16] xx xx xx xx c3 c3 c2 c2
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_mm_pshuflh(coeff16, coeff, shuf_fa)
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// [16] c3 c3 c3 c3 c2 c2 c2 c2
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_mm_punpcklhw(coeff16, coeff16, coeff16)
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// [16] a3 g3 b3 r3 a2 g2 b2 r2
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_mm_punpckhbh(src16, src8, zero)
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_mm_pmulhh(mul_hi, src16, coeff16)
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_mm_pmullh(mul_lo, src16, coeff16)
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// [32] a2*c2 b2*c2 g2*c2 r2*c2
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_mm_punpcklhw(t, mul_lo, mul_hi)
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_mm_paddw(accum, accum, t)
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// [32] a3*c3 b3*c3 g3*c3 r3*c3
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_mm_punpckhhw(t, mul_lo, mul_hi)
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_mm_paddw(accum, accum, t)
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".set pop \n\t"
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:[th]"=&f"(th), [tl]"=&f"(tl),
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[src8h]"=&f"(src8h), [src8l]"=&f"(src8l),
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[accumh]"+f"(accumh), [accuml]"+f"(accuml),
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[src16h]"=&f"(src16h), [src16l]"=&f"(src16l),
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[coeffh]"=&f"(coeffh), [coeffl]"=&f"(coeffl),
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[coeff16h]"=&f"(coeff16h), [coeff16l]"=&f"(coeff16l),
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[mul_hih]"=&f"(mul_hih), [mul_hil]"=&f"(mul_hil),
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[mul_loh]"=&f"(mul_loh), [mul_lol]"=&f"(mul_lol)
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:[zeroh]"f"(zero), [zerol]"f"(zero),
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[shuf_50]"f"(shuf_50), [shuf_fa]"f"(shuf_fa),
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[fval]"r"(filter_values), [rtf]"r"(row_to_filter)
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);
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// Advance the pixel and coefficients pointers.
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row_to_filter += 16;
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filter_values += 4;
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}
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// When |filter_length| is not divisible by 4, we need to decimate some of
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// the filter coefficient that was loaded incorrectly to zero; Other than
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// that the algorithm is same with above, except that the 4th pixel will be
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// always absent.
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int r = filter_length & 3;
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if (r) {
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double coeffh, coeffl, th, tl, coeff16h, coeff16l;
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double src8h, src8l, src16h, src16l, mul_hih, mul_hil, mul_loh, mul_lol;
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asm volatile (
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".set push \n\t"
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".set arch=loongson3a \n\t"
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"gsldlc1 %[coeffl], 7(%[fval]) \n\t"
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"gsldrc1 %[coeffl], (%[fval]) \n\t"
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"xor %[coeffh], %[coeffh], %[coeffh] \n\t"
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// Mask out extra filter taps.
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"and %[coeffl], %[coeffl], %[mask] \n\t"
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_mm_pshuflh(coeff16, coeff, shuf_50)
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_mm_punpcklhw(coeff16, coeff16, coeff16)
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"gsldlc1 %[src8h], 0xf(%[rtf]) \n\t"
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"gsldrc1 %[src8h], 0x8(%[rtf]) \n\t"
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"gsldlc1 %[src8l], 0x7(%[rtf]) \n\t"
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"gsldrc1 %[src8l], 0x0(%[rtf]) \n\t"
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_mm_punpcklbh(src16, src8, zero)
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_mm_pmulhh(mul_hi, src16, coeff16)
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_mm_pmullh(mul_lo, src16, coeff16)
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_mm_punpcklhw(t, mul_lo, mul_hi)
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_mm_paddw(accum, accum, t)
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_mm_punpckhhw(t, mul_lo, mul_hi)
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_mm_paddw(accum, accum, t)
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_mm_punpckhbh(src16, src8, zero)
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_mm_pshuflh(coeff16, coeff, shuf_fa)
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_mm_punpcklhw(coeff16, coeff16, coeff16)
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_mm_pmulhh(mul_hi, src16, coeff16)
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_mm_pmullh(mul_lo, src16, coeff16)
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_mm_punpcklhw(t, mul_lo, mul_hi)
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_mm_paddw(accum, accum, t)
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".set pop \n\t"
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:[th]"=&f"(th), [tl]"=&f"(tl),
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[src8h]"=&f"(src8h), [src8l]"=&f"(src8l),
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[accumh]"+f"(accumh), [accuml]"+f"(accuml),
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[src16h]"=&f"(src16h), [src16l]"=&f"(src16l),
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[coeffh]"=&f"(coeffh), [coeffl]"=&f"(coeffl),
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[coeff16h]"=&f"(coeff16h), [coeff16l]"=&f"(coeff16l),
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[mul_hih]"=&f"(mul_hih), [mul_hil]"=&f"(mul_hil),
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[mul_loh]"=&f"(mul_loh), [mul_lol]"=&f"(mul_lol)
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:[fval]"r"(filter_values), [rtf]"r"(row_to_filter),
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[zeroh]"f"(zero), [zerol]"f"(zero), [mask]"f"(mask[r]),
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[shuf_50]"f"(shuf_50), [shuf_fa]"f"(shuf_fa)
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);
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}
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double t, sra;
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asm volatile (
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".set push \n\t"
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".set arch=loongson3a \n\t"
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"ori %[tmp], $0, %[sk_sra] \n\t"
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"mtc1 %[tmp], %[sra] \n\t"
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// Shift right for fixed point implementation.
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_mm_psraw(accum, accum, sra)
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// Packing 32 bits |accum| to 16 bits per channel (signed saturation).
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_mm_packsswh(accum, accum, zero, t)
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// Packing 16 bits |accum| to 8 bits per channel (unsigned saturation).
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_mm_packushb(accum, accum, zero, t)
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// Store the pixel value of 32 bits.
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"swc1 %[accuml], (%[out_row]) \n\t"
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".set pop \n\t"
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:[sra]"=&f"(sra), [t]"=&f"(t), [tmp]"=&r"(tmp),
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[accumh]"+f"(accumh), [accuml]"+f"(accuml)
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:[sk_sra]"i"(ConvolutionFilter1D::kShiftBits),
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[out_row]"r"(out_row), [zeroh]"f"(zero), [zerol]"f"(zero)
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:"memory"
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);
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out_row += 4;
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}
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}
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// Convolves horizontally along a single row. The row data is given in
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// |src_data| and continues for the [begin, end) of the filter.
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// Process one pixel at a time.
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void ConvolveHorizontally1_LS3(const unsigned char* src_data,
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const ConvolutionFilter1D& filter,
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unsigned char* out_row) {
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int num_values = filter.num_values();
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double zero;
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double sra;
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asm volatile (
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".set push \n"
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".set arch=loongson3a \n"
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"xor %[zero], %[zero], %[zero] \n"
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"mtc1 %[sk_sra], %[sra] \n"
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".set pop \n"
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:[zero]"=&f"(zero), [sra]"=&f"(sra)
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:[sk_sra]"r"(ConvolutionFilter1D::kShiftBits)
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);
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// Loop over each pixel on this row in the output image.
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for (int out_x = 0; out_x < num_values; out_x++) {
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// Get the filter that determines the current output pixel.
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int filter_offset;
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int filter_length;
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const ConvolutionFilter1D::Fixed* filter_values =
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filter.FilterForValue(out_x, &filter_offset, &filter_length);
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// Compute the first pixel in this row that the filter affects. It will
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// touch |filter_length| pixels (4 bytes each) after this.
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const unsigned char* row_to_filter = &src_data[filter_offset * 4];
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// Apply the filter to the row to get the destination pixel in |accum|.
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double accuml;
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double accumh;
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asm volatile (
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".set push \n"
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".set arch=loongson3a \n"
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"xor %[accuml], %[accuml], %[accuml] \n"
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"xor %[accumh], %[accumh], %[accumh] \n"
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".set pop \n"
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:[accuml]"=&f"(accuml), [accumh]"=&f"(accumh)
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);
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for (int filter_x = 0; filter_x < filter_length; filter_x++) {
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double src8;
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double src16;
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double coeff;
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double coeff16;
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asm volatile (
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".set push \n"
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".set arch=loongson3a \n"
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"lwc1 %[src8], %[rtf] \n"
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"mtc1 %[fv], %[coeff] \n"
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"pshufh %[coeff16], %[coeff], %[zero] \n"
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"punpcklbh %[src16], %[src8], %[zero] \n"
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"pmullh %[src8], %[src16], %[coeff16] \n"
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"pmulhh %[coeff], %[src16], %[coeff16] \n"
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"punpcklhw %[src16], %[src8], %[coeff] \n"
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"punpckhhw %[coeff16], %[src8], %[coeff] \n"
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"paddw %[accuml], %[accuml], %[src16] \n"
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"paddw %[accumh], %[accumh], %[coeff16] \n"
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".set pop \n"
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:[accuml]"+f"(accuml), [accumh]"+f"(accumh),
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[src8]"=&f"(src8), [src16]"=&f"(src16),
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[coeff]"=&f"(coeff), [coeff16]"=&f"(coeff16)
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:[rtf]"m"(row_to_filter[filter_x * 4]),
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[fv]"r"(filter_values[filter_x]), [zero]"f"(zero)
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);
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}
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asm volatile (
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".set push \n"
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".set arch=loongson3a \n"
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// Bring this value back in range. All of the filter scaling factors
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// are in fixed point with kShiftBits bits of fractional part.
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"psraw %[accuml], %[accuml], %[sra] \n"
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"psraw %[accumh], %[accumh], %[sra] \n"
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// Store the new pixel.
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"packsswh %[accuml], %[accuml], %[accumh] \n"
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"packushb %[accuml], %[accuml], %[zero] \n"
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"swc1 %[accuml], %[out_row] \n"
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".set pop \n"
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:[accuml]"+f"(accuml), [accumh]"+f"(accumh)
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:[sra]"f"(sra), [zero]"f"(zero), [out_row]"m"(out_row[out_x * 4])
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:"memory"
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);
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}
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}
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// Convolves horizontally along four rows. The row data is given in
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// |src_data| and continues for the num_values() of the filter.
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// The algorithm is almost same as |ConvolveHorizontally_LS3|. Please
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// refer to that function for detailed comments.
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void ConvolveHorizontally4_LS3(const unsigned char* src_data[4],
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const ConvolutionFilter1D& filter,
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unsigned char* out_row[4]) {
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int num_values = filter.num_values();
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int tmp, filter_offset, filter_length;
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double zero, mask[4], shuf_50, shuf_fa;
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asm volatile (
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".set push \n\t"
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".set arch=loongson3a \n\t"
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"xor %[zero], %[zero], %[zero] \n\t"
|
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// |mask| will be used to decimate all extra filter coefficients that are
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// loaded by SIMD when |filter_length| is not divisible by 4.
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|
// mask[0] is not used in following algorithm.
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"li %[tmp], 1 \n\t"
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"dsll32 %[tmp], 0x10 \n\t"
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"daddiu %[tmp], -1 \n\t"
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"dmtc1 %[tmp], %[mask3] \n\t"
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"dsrl %[tmp], 0x10 \n\t"
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"mtc1 %[tmp], %[mask2] \n\t"
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"dsrl %[tmp], 0x10 \n\t"
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"mtc1 %[tmp], %[mask1] \n\t"
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"ori %[tmp], $0, 0x50 \n\t"
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"mtc1 %[tmp], %[shuf_50] \n\t"
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"ori %[tmp], $0, 0xfa \n\t"
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"mtc1 %[tmp], %[shuf_fa] \n\t"
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".set pop \n\t"
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:[zero]"=f"(zero), [mask1]"=f"(mask[1]),
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[mask2]"=f"(mask[2]), [mask3]"=f"(mask[3]),
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[shuf_50]"=f"(shuf_50), [shuf_fa]"=f"(shuf_fa),
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[tmp]"=&r"(tmp)
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);
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// Output one pixel each iteration, calculating all channels (RGBA) together.
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for (int out_x = 0; out_x < num_values; out_x++) {
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const ConvolutionFilter1D::Fixed* filter_values =
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filter.FilterForValue(out_x, &filter_offset, &filter_length);
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double accum0h, accum0l, accum1h, accum1l;
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double accum2h, accum2l, accum3h, accum3l;
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// four pixels in a column per iteration.
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asm volatile (
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".set push \n\t"
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".set arch=loongson3a \n\t"
|
|
_mm_xor(accum0, accum0, accum0)
|
|
_mm_xor(accum1, accum1, accum1)
|
|
_mm_xor(accum2, accum2, accum2)
|
|
_mm_xor(accum3, accum3, accum3)
|
|
".set pop \n\t"
|
|
:[accum0h]"=f"(accum0h), [accum0l]"=f"(accum0l),
|
|
[accum1h]"=f"(accum1h), [accum1l]"=f"(accum1l),
|
|
[accum2h]"=f"(accum2h), [accum2l]"=f"(accum2l),
|
|
[accum3h]"=f"(accum3h), [accum3l]"=f"(accum3l)
|
|
);
|
|
|
|
int start = (filter_offset<<2);
|
|
// We will load and accumulate with four coefficients per iteration.
|
|
for (int filter_x = 0; filter_x < (filter_length >> 2); filter_x++) {
|
|
double src8h, src8l, src16h, src16l;
|
|
double mul_hih, mul_hil, mul_loh, mul_lol, th, tl;
|
|
double coeffh, coeffl, coeff16loh, coeff16lol, coeff16hih, coeff16hil;
|
|
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set arch=loongson3a \n\t"
|
|
// [16] xx xx xx xx c3 c2 c1 c0
|
|
"gsldlc1 %[coeffl], 7(%[fval]) \n\t"
|
|
"gsldrc1 %[coeffl], (%[fval]) \n\t"
|
|
"xor %[coeffh], %[coeffh], %[coeffh] \n\t"
|
|
// [16] xx xx xx xx c1 c1 c0 c0
|
|
_mm_pshuflh(coeff16lo, coeff, shuf_50)
|
|
// [16] c1 c1 c1 c1 c0 c0 c0 c0
|
|
_mm_punpcklhw(coeff16lo, coeff16lo, coeff16lo)
|
|
// [16] xx xx xx xx c3 c3 c2 c2
|
|
_mm_pshuflh(coeff16hi, coeff, shuf_fa)
|
|
// [16] c3 c3 c3 c3 c2 c2 c2 c2
|
|
_mm_punpcklhw(coeff16hi, coeff16hi, coeff16hi)
|
|
".set pop \n\t"
|
|
:[coeffh]"=&f"(coeffh), [coeffl]"=&f"(coeffl),
|
|
[coeff16loh]"=&f"(coeff16loh), [coeff16lol]"=&f"(coeff16lol),
|
|
[coeff16hih]"=&f"(coeff16hih), [coeff16hil]"=&f"(coeff16hil)
|
|
:[fval]"r"(filter_values), [shuf_50]"f"(shuf_50), [shuf_fa]"f"(shuf_fa)
|
|
);
|
|
|
|
#define ITERATION(_src, _accumh, _accuml) \
|
|
asm volatile ( \
|
|
".set push \n\t" \
|
|
".set arch=loongson3a \n\t" \
|
|
"gsldlc1 %[src8h], 0xf(%[src]) \n\t" \
|
|
"gsldrc1 %[src8h], 0x8(%[src]) \n\t" \
|
|
"gsldlc1 %[src8l], 0x7(%[src]) \n\t" \
|
|
"gsldrc1 %[src8l], 0x0(%[src]) \n\t" \
|
|
_mm_punpcklbh(src16, src8, zero) \
|
|
_mm_pmulhh(mul_hi, src16, coeff16lo) \
|
|
_mm_pmullh(mul_lo, src16, coeff16lo) \
|
|
_mm_punpcklhw(t, mul_lo, mul_hi) \
|
|
_mm_paddw(accum, accum, t) \
|
|
_mm_punpckhhw(t, mul_lo, mul_hi) \
|
|
_mm_paddw(accum, accum, t) \
|
|
_mm_punpckhbh(src16, src8, zero) \
|
|
_mm_pmulhh(mul_hi, src16, coeff16hi) \
|
|
_mm_pmullh(mul_lo, src16, coeff16hi) \
|
|
_mm_punpcklhw(t, mul_lo, mul_hi) \
|
|
_mm_paddw(accum, accum, t) \
|
|
_mm_punpckhhw(t, mul_lo, mul_hi) \
|
|
_mm_paddw(accum, accum, t) \
|
|
".set pop \n\t" \
|
|
:[th]"=&f"(th), [tl]"=&f"(tl), \
|
|
[src8h]"=&f"(src8h), [src8l]"=&f"(src8l), \
|
|
[src16h]"=&f"(src16h), [src16l]"=&f"(src16l), \
|
|
[mul_hih]"=&f"(mul_hih), [mul_hil]"=&f"(mul_hil), \
|
|
[mul_loh]"=&f"(mul_loh), [mul_lol]"=&f"(mul_lol), \
|
|
[accumh]"+f"(_accumh), [accuml]"+f"(_accuml) \
|
|
:[zeroh]"f"(zero), [zerol]"f"(zero), [src]"r"(_src), \
|
|
[coeff16loh]"f"(coeff16loh), [coeff16lol]"f"(coeff16lol), \
|
|
[coeff16hih]"f"(coeff16hih), [coeff16hil]"f"(coeff16hil) \
|
|
);
|
|
|
|
ITERATION(src_data[0] + start, accum0h, accum0l);
|
|
ITERATION(src_data[1] + start, accum1h, accum1l);
|
|
ITERATION(src_data[2] + start, accum2h, accum2l);
|
|
ITERATION(src_data[3] + start, accum3h, accum3l);
|
|
|
|
start += 16;
|
|
filter_values += 4;
|
|
}
|
|
|
|
int r = filter_length & 3;
|
|
if (r) {
|
|
double src8h, src8l, src16h, src16l;
|
|
double mul_hih, mul_hil, mul_loh, mul_lol, th, tl;
|
|
double coeffh, coeffl, coeff16loh, coeff16lol, coeff16hih, coeff16hil;
|
|
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set arch=loongson3a \n\t"
|
|
"gsldlc1 %[coeffl], 7(%[fval]) \n\t"
|
|
"gsldrc1 %[coeffl], (%[fval]) \n\t"
|
|
"xor %[coeffh], %[coeffh], %[coeffh] \n\t"
|
|
// Mask out extra filter taps.
|
|
"and %[coeffl], %[coeffl], %[mask] \n\t"
|
|
_mm_pshuflh(coeff16lo, coeff, shuf_50)
|
|
/* c1 c1 c1 c1 c0 c0 c0 c0 */
|
|
_mm_punpcklhw(coeff16lo, coeff16lo, coeff16lo)
|
|
_mm_pshuflh(coeff16hi, coeff, shuf_fa)
|
|
_mm_punpcklhw(coeff16hi, coeff16hi, coeff16hi)
|
|
".set pop \n\t"
|
|
:[coeffh]"=&f"(coeffh), [coeffl]"=&f"(coeffl),
|
|
[coeff16loh]"=&f"(coeff16loh), [coeff16lol]"=&f"(coeff16lol),
|
|
[coeff16hih]"=&f"(coeff16hih), [coeff16hil]"=&f"(coeff16hil)
|
|
:[fval]"r"(filter_values), [mask]"f"(mask[r]),
|
|
[shuf_50]"f"(shuf_50), [shuf_fa]"f"(shuf_fa)
|
|
);
|
|
|
|
ITERATION(src_data[0] + start, accum0h, accum0l);
|
|
ITERATION(src_data[1] + start, accum1h, accum1l);
|
|
ITERATION(src_data[2] + start, accum2h, accum2l);
|
|
ITERATION(src_data[3] + start, accum3h, accum3l);
|
|
}
|
|
|
|
double t, sra;
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set arch=loongson3a \n\t"
|
|
"ori %[tmp], $0, %[sk_sra] \n\t"
|
|
"mtc1 %[tmp], %[sra] \n\t"
|
|
_mm_psraw(accum0, accum0, sra)
|
|
_mm_packsswh(accum0, accum0, zero, t)
|
|
_mm_packushb(accum0, accum0, zero, t)
|
|
_mm_psraw(accum1, accum1, sra)
|
|
_mm_packsswh(accum1, accum1, zero, t)
|
|
_mm_packushb(accum1, accum1, zero, t)
|
|
_mm_psraw(accum2, accum2, sra)
|
|
_mm_packsswh(accum2, accum2, zero, t)
|
|
_mm_packushb(accum2, accum2, zero, t)
|
|
_mm_psraw(accum3, accum3, sra)
|
|
_mm_packsswh(accum3, accum3, zero, t)
|
|
_mm_packushb(accum3, accum3, zero, t)
|
|
"swc1 %[accum0l], (%[out_row0]) \n\t"
|
|
"swc1 %[accum1l], (%[out_row1]) \n\t"
|
|
"swc1 %[accum2l], (%[out_row2]) \n\t"
|
|
"swc1 %[accum3l], (%[out_row3]) \n\t"
|
|
".set pop \n\t"
|
|
:[accum0h]"+f"(accum0h), [accum0l]"+f"(accum0l),
|
|
[accum1h]"+f"(accum1h), [accum1l]"+f"(accum1l),
|
|
[accum2h]"+f"(accum2h), [accum2l]"+f"(accum2l),
|
|
[accum3h]"+f"(accum3h), [accum3l]"+f"(accum3l),
|
|
[sra]"=&f"(sra), [t]"=&f"(t), [tmp]"=&r"(tmp)
|
|
:[zeroh]"f"(zero), [zerol]"f"(zero),
|
|
[out_row0]"r"(out_row[0]), [out_row1]"r"(out_row[1]),
|
|
[out_row2]"r"(out_row[2]), [out_row3]"r"(out_row[3]),
|
|
[sk_sra]"i"(ConvolutionFilter1D::kShiftBits)
|
|
:"memory"
|
|
);
|
|
|
|
out_row[0] += 4;
|
|
out_row[1] += 4;
|
|
out_row[2] += 4;
|
|
out_row[3] += 4;
|
|
}
|
|
}
|
|
|
|
// Does vertical convolution to produce one output row. The filter values and
|
|
// length are given in the first two parameters. These are applied to each
|
|
// of the rows pointed to in the |source_data_rows| array, with each row
|
|
// being |pixel_width| wide.
|
|
//
|
|
// The output must have room for |pixel_width * 4| bytes.
|
|
template<bool has_alpha>
|
|
void ConvolveVertically_LS3_impl(const ConvolutionFilter1D::Fixed* filter_values,
|
|
int filter_length,
|
|
unsigned char* const* source_data_rows,
|
|
int pixel_width,
|
|
unsigned char* out_row) {
|
|
uint64_t tmp;
|
|
int width = pixel_width & ~3;
|
|
double zero, sra, coeff16h, coeff16l;
|
|
double accum0h, accum0l, accum1h, accum1l;
|
|
double accum2h, accum2l, accum3h, accum3l;
|
|
const void *src;
|
|
int out_x;
|
|
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set arch=loongson3a \n\t"
|
|
"xor %[zero], %[zero], %[zero] \n\t"
|
|
"ori %[tmp], $0, %[sk_sra] \n\t"
|
|
"mtc1 %[tmp], %[sra] \n\t"
|
|
".set pop \n\t"
|
|
:[zero]"=f"(zero), [sra]"=f"(sra), [tmp]"=&r"(tmp)
|
|
:[sk_sra]"i"(ConvolutionFilter1D::kShiftBits)
|
|
);
|
|
|
|
// Output four pixels per iteration (16 bytes).
|
|
for (out_x = 0; out_x < width; out_x += 4) {
|
|
// Accumulated result for each pixel. 32 bits per RGBA channel.
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set arch=loongson3a \n\t"
|
|
_mm_xor(accum0, accum0, accum0)
|
|
_mm_xor(accum1, accum1, accum1)
|
|
_mm_xor(accum2, accum2, accum2)
|
|
_mm_xor(accum3, accum3, accum3)
|
|
".set pop \n\t"
|
|
:[accum0h]"=f"(accum0h), [accum0l]"=f"(accum0l),
|
|
[accum1h]"=f"(accum1h), [accum1l]"=f"(accum1l),
|
|
[accum2h]"=f"(accum2h), [accum2l]"=f"(accum2l),
|
|
[accum3h]"=f"(accum3h), [accum3l]"=f"(accum3l)
|
|
);
|
|
|
|
// Convolve with one filter coefficient per iteration.
|
|
for (int filter_y = 0; filter_y < filter_length; filter_y++) {
|
|
double src8h, src8l, src16h, src16l;
|
|
double mul_hih, mul_hil, mul_loh, mul_lol, th, tl;
|
|
|
|
src = reinterpret_cast<const void*>(
|
|
&source_data_rows[filter_y][out_x << 2]);
|
|
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set arch=loongson3a \n\t"
|
|
// Duplicate the filter coefficient 8 times.
|
|
// [16] cj cj cj cj cj cj cj cj
|
|
"gsldlc1 %[coeff16l], 7+%[fval] \n\t"
|
|
"gsldrc1 %[coeff16l], %[fval] \n\t"
|
|
"pshufh %[coeff16l], %[coeff16l], %[zerol] \n\t"
|
|
"mov.d %[coeff16h], %[coeff16l] \n\t"
|
|
// Load four pixels (16 bytes) together.
|
|
// [8] a3 b3 g3 r3 a2 b2 g2 r2 a1 b1 g1 r1 a0 b0 g0 r0
|
|
"gsldlc1 %[src8h], 0xf(%[src]) \n\t"
|
|
"gsldrc1 %[src8h], 0x8(%[src]) \n\t"
|
|
"gsldlc1 %[src8l], 0x7(%[src]) \n\t"
|
|
"gsldrc1 %[src8l], 0x0(%[src]) \n\t"
|
|
// Unpack 1st and 2nd pixels from 8 bits to 16 bits for each channels =>
|
|
// multiply with current coefficient => accumulate the result.
|
|
// [16] a1 b1 g1 r1 a0 b0 g0 r0
|
|
_mm_punpcklbh(src16, src8, zero)
|
|
_mm_pmulhh(mul_hi, src16, coeff16)
|
|
_mm_pmullh(mul_lo, src16, coeff16)
|
|
// [32] a0 b0 g0 r0
|
|
_mm_punpcklhw(t, mul_lo, mul_hi)
|
|
_mm_paddw(accum0, accum0, t)
|
|
// [32] a1 b1 g1 r1
|
|
_mm_punpckhhw(t, mul_lo, mul_hi)
|
|
_mm_paddw(accum1, accum1, t)
|
|
// Unpack 3rd and 4th pixels from 8 bits to 16 bits for each channels =>
|
|
// multiply with current coefficient => accumulate the result.
|
|
// [16] a3 b3 g3 r3 a2 b2 g2 r2
|
|
_mm_punpckhbh(src16, src8, zero)
|
|
_mm_pmulhh(mul_hi, src16, coeff16)
|
|
_mm_pmullh(mul_lo, src16, coeff16)
|
|
".set pop \n\t"
|
|
:[th]"=&f"(th), [tl]"=&f"(tl),
|
|
[src8h]"=&f"(src8h), [src8l]"=&f"(src8l),
|
|
[src16h]"=&f"(src16h), [src16l]"=&f"(src16l),
|
|
[mul_hih]"=&f"(mul_hih), [mul_hil]"=&f"(mul_hil),
|
|
[mul_loh]"=&f"(mul_loh), [mul_lol]"=&f"(mul_lol),
|
|
[accum0h]"+f"(accum0h), [accum0l]"+f"(accum0l),
|
|
[accum1h]"+f"(accum1h), [accum1l]"+f"(accum1l),
|
|
[coeff16h]"=&f"(coeff16h), [coeff16l]"=&f"(coeff16l)
|
|
:[zeroh]"f"(zero), [zerol]"f"(zero),
|
|
[fval]"m"(filter_values[filter_y]),
|
|
[src]"r"(src)
|
|
);
|
|
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set arch=loongson3a \n\t"
|
|
// [32] a2 b2 g2 r2
|
|
_mm_punpcklhw(t, mul_lo, mul_hi)
|
|
_mm_paddw(accum2, accum2, t)
|
|
// [32] a3 b3 g3 r3
|
|
_mm_punpckhhw(t, mul_lo, mul_hi)
|
|
_mm_paddw(accum3, accum3, t)
|
|
".set pop \n\t"
|
|
:[th]"=&f"(th), [tl]"=&f"(tl),
|
|
[mul_hih]"+f"(mul_hih), [mul_hil]"+f"(mul_hil),
|
|
[mul_loh]"+f"(mul_loh), [mul_lol]"+f"(mul_lol),
|
|
[accum2h]"+f"(accum2h), [accum2l]"+f"(accum2l),
|
|
[accum3h]"+f"(accum3h), [accum3l]"+f"(accum3l)
|
|
);
|
|
}
|
|
|
|
double t;
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set arch=loongson3a \n\t"
|
|
// Shift right for fixed point implementation.
|
|
_mm_psraw(accum0, accum0, sra)
|
|
_mm_psraw(accum1, accum1, sra)
|
|
_mm_psraw(accum2, accum2, sra)
|
|
_mm_psraw(accum3, accum3, sra)
|
|
// Packing 32 bits |accum| to 16 bits per channel (signed saturation).
|
|
// [16] a1 b1 g1 r1 a0 b0 g0 r0
|
|
_mm_packsswh(accum0, accum0, accum1, t)
|
|
// [16] a3 b3 g3 r3 a2 b2 g2 r2
|
|
_mm_packsswh(accum2, accum2, accum3, t)
|
|
// Packing 16 bits |accum| to 8 bits per channel (unsigned saturation).
|
|
// [8] a3 b3 g3 r3 a2 b2 g2 r2 a1 b1 g1 r1 a0 b0 g0 r0
|
|
_mm_packushb(accum0, accum0, accum2, t)
|
|
".set pop \n\t"
|
|
:[accum0h]"+f"(accum0h), [accum0l]"+f"(accum0l),
|
|
[accum1h]"+f"(accum1h), [accum1l]"+f"(accum1l),
|
|
[accum2h]"+f"(accum2h), [accum2l]"+f"(accum2l),
|
|
[accum3h]"+f"(accum3h), [accum3l]"+f"(accum3l),
|
|
[t]"=&f"(t)
|
|
:[sra]"f"(sra)
|
|
);
|
|
|
|
if (has_alpha) {
|
|
double ah, al, bh, bl, srl8, srl16, sll24;
|
|
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set arch=loongson3a \n\t"
|
|
"li %[tmp], 8 \n\t"
|
|
"mtc1 %[tmp], %[srl8] \n\t"
|
|
"li %[tmp], 16 \n\t"
|
|
"mtc1 %[tmp], %[srl16] \n\t"
|
|
"li %[tmp], 24 \n\t"
|
|
"mtc1 %[tmp], %[sll24] \n\t"
|
|
// Compute the max(ri, gi, bi) for each pixel.
|
|
// [8] xx a3 b3 g3 xx a2 b2 g2 xx a1 b1 g1 xx a0 b0 g0
|
|
_mm_psraw(a, accum0, srl8)
|
|
// [8] xx xx xx max3 xx xx xx max2 xx xx xx max1 xx xx xx max0
|
|
_mm_pmaxub(b, a, accum0) // Max of r and g.
|
|
// [8] xx xx a3 b3 xx xx a2 b2 xx xx a1 b1 xx xx a0 b0
|
|
_mm_psrlw(a, accum0, srl16)
|
|
// [8] xx xx xx max3 xx xx xx max2 xx xx xx max1 xx xx xx max0
|
|
_mm_pmaxub(b, a, b) // Max of r and g and b.
|
|
// [8] max3 00 00 00 max2 00 00 00 max1 00 00 00 max0 00 00 00
|
|
_mm_psllw(b, b, sll24)
|
|
// Make sure the value of alpha channel is always larger than maximum
|
|
// value of color channels.
|
|
_mm_pmaxub(accum0, b, accum0)
|
|
".set pop \n\t"
|
|
:[accum0h]"+f"(accum0h), [accum0l]"+f"(accum0l),
|
|
[tmp]"=&r"(tmp), [ah]"=&f"(ah), [al]"=&f"(al),
|
|
[bh]"=&f"(bh), [bl]"=&f"(bl), [srl8]"=&f"(srl8),
|
|
[srl16]"=&f"(srl16), [sll24]"=&f"(sll24)
|
|
);
|
|
} else {
|
|
double maskh, maskl;
|
|
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set arch=loongson3a \n\t"
|
|
// Set value of alpha channels to 0xFF.
|
|
"li %[tmp], 0xff000000 \n\t"
|
|
"mtc1 %[tmp], %[maskl] \n\t"
|
|
"punpcklwd %[maskl], %[maskl], %[maskl] \n\t"
|
|
"mov.d %[maskh], %[maskl] \n\t"
|
|
_mm_or(accum0, accum0, mask)
|
|
".set pop \n\t"
|
|
:[maskh]"=&f"(maskh), [maskl]"=&f"(maskl),
|
|
[accum0h]"+f"(accum0h), [accum0l]"+f"(accum0l),
|
|
[tmp]"=&r"(tmp)
|
|
);
|
|
}
|
|
|
|
// Store the convolution result (16 bytes) and advance the pixel pointers.
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set arch=loongson3a \n\t"
|
|
"gssdlc1 %[accum0h], 0xf(%[out_row]) \n\t"
|
|
"gssdrc1 %[accum0h], 0x8(%[out_row]) \n\t"
|
|
"gssdlc1 %[accum0l], 0x7(%[out_row]) \n\t"
|
|
"gssdrc1 %[accum0l], 0x0(%[out_row]) \n\t"
|
|
".set pop \n\t"
|
|
::[accum0h]"f"(accum0h), [accum0l]"f"(accum0l),
|
|
[out_row]"r"(out_row)
|
|
:"memory"
|
|
);
|
|
out_row += 16;
|
|
}
|
|
|
|
// When the width of the output is not divisible by 4, We need to save one
|
|
// pixel (4 bytes) each time. And also the fourth pixel is always absent.
|
|
if (pixel_width & 3) {
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set arch=loongson3a \n\t"
|
|
_mm_xor(accum0, accum0, accum0)
|
|
_mm_xor(accum1, accum1, accum1)
|
|
_mm_xor(accum2, accum2, accum2)
|
|
".set pop \n\t"
|
|
:[accum0h]"=&f"(accum0h), [accum0l]"=&f"(accum0l),
|
|
[accum1h]"=&f"(accum1h), [accum1l]"=&f"(accum1l),
|
|
[accum2h]"=&f"(accum2h), [accum2l]"=&f"(accum2l)
|
|
);
|
|
for (int filter_y = 0; filter_y < filter_length; ++filter_y) {
|
|
double src8h, src8l, src16h, src16l;
|
|
double th, tl, mul_hih, mul_hil, mul_loh, mul_lol;
|
|
src = reinterpret_cast<const void*>(
|
|
&source_data_rows[filter_y][out_x<<2]);
|
|
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set arch=loongson3a \n\t"
|
|
"gsldlc1 %[coeff16l], 7+%[fval] \n\t"
|
|
"gsldrc1 %[coeff16l], %[fval] \n\t"
|
|
"pshufh %[coeff16l], %[coeff16l], %[zerol] \n\t"
|
|
"mov.d %[coeff16h], %[coeff16l] \n\t"
|
|
// [8] a3 b3 g3 r3 a2 b2 g2 r2 a1 b1 g1 r1 a0 b0 g0 r0
|
|
"gsldlc1 %[src8h], 0xf(%[src]) \n\t"
|
|
"gsldrc1 %[src8h], 0x8(%[src]) \n\t"
|
|
"gsldlc1 %[src8l], 0x7(%[src]) \n\t"
|
|
"gsldrc1 %[src8l], 0x0(%[src]) \n\t"
|
|
// [16] a1 b1 g1 r1 a0 b0 g0 r0
|
|
_mm_punpcklbh(src16, src8, zero)
|
|
_mm_pmulhh(mul_hi, src16, coeff16)
|
|
_mm_pmullh(mul_lo, src16, coeff16)
|
|
// [32] a0 b0 g0 r0
|
|
_mm_punpcklhw(t, mul_lo, mul_hi)
|
|
_mm_paddw(accum0, accum0, t)
|
|
// [32] a1 b1 g1 r1
|
|
_mm_punpckhhw(t, mul_lo, mul_hi)
|
|
_mm_paddw(accum1, accum1, t)
|
|
// [16] a3 b3 g3 r3 a2 b2 g2 r2
|
|
_mm_punpckhbh(src16, src8, zero)
|
|
_mm_pmulhh(mul_hi, src16, coeff16)
|
|
_mm_pmullh(mul_lo, src16, coeff16)
|
|
// [32] a2 b2 g2 r2
|
|
_mm_punpcklhw(t, mul_lo, mul_hi)
|
|
_mm_paddw(accum2, accum2, t)
|
|
".set pop \n\t"
|
|
:[th]"=&f"(th), [tl]"=&f"(tl),
|
|
[src8h]"=&f"(src8h), [src8l]"=&f"(src8l),
|
|
[src16h]"=&f"(src16h), [src16l]"=&f"(src16l),
|
|
[mul_hih]"=&f"(mul_hih), [mul_hil]"=&f"(mul_hil),
|
|
[mul_loh]"=&f"(mul_loh), [mul_lol]"=&f"(mul_lol),
|
|
[accum0h]"+f"(accum0h), [accum0l]"+f"(accum0l),
|
|
[accum1h]"+f"(accum1h), [accum1l]"+f"(accum1l),
|
|
[accum2h]"+f"(accum2h), [accum2l]"+f"(accum2l),
|
|
[coeff16h]"=&f"(coeff16h), [coeff16l]"=&f"(coeff16l)
|
|
:[zeroh]"f"(zero), [zerol]"f"(zero),
|
|
[fval]"m"(filter_values[filter_y]),
|
|
[src]"r"(src)
|
|
);
|
|
}
|
|
|
|
double t;
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set arch=loongson3a \n\t"
|
|
_mm_psraw(accum0, accum0, sra)
|
|
_mm_psraw(accum1, accum1, sra)
|
|
_mm_psraw(accum2, accum2, sra)
|
|
// [16] a1 b1 g1 r1 a0 b0 g0 r0
|
|
_mm_packsswh(accum0, accum0, accum1, t)
|
|
// [16] a3 b3 g3 r3 a2 b2 g2 r2
|
|
_mm_packsswh(accum2, accum2, zero, t)
|
|
// [8] a3 b3 g3 r3 a2 b2 g2 r2 a1 b1 g1 r1 a0 b0 g0 r0
|
|
_mm_packushb(accum0, accum0, accum2, t)
|
|
".set pop \n\t"
|
|
:[accum0h]"+f"(accum0h), [accum0l]"+f"(accum0l),
|
|
[accum1h]"+f"(accum1h), [accum1l]"+f"(accum1l),
|
|
[accum2h]"+f"(accum2h), [accum2l]"+f"(accum2l),
|
|
[t]"=&f"(t)
|
|
:[zeroh]"f"(zero), [zerol]"f"(zero), [sra]"f"(sra)
|
|
);
|
|
if (has_alpha) {
|
|
double ah, al, bh, bl, srl8, srl16, sll24;
|
|
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set arch=loongson3a \n\t"
|
|
"li %[tmp], 8 \n\t"
|
|
"mtc1 %[tmp], %[srl8] \n\t"
|
|
"li %[tmp], 16 \n\t"
|
|
"mtc1 %[tmp], %[srl16] \n\t"
|
|
"li %[tmp], 24 \n\t"
|
|
"mtc1 %[tmp], %[sll24] \n\t"
|
|
// [8] xx a3 b3 g3 xx a2 b2 g2 xx a1 b1 g1 xx a0 b0 g0
|
|
_mm_psrlw(a, accum0, srl8)
|
|
// [8] xx xx xx max3 xx xx xx max2 xx xx xx max1 xx xx xx max0
|
|
_mm_pmaxub(b, a, accum0) // Max of r and g.
|
|
// [8] xx xx a3 b3 xx xx a2 b2 xx xx a1 b1 xx xx a0 b0
|
|
_mm_psrlw(a, accum0, srl16)
|
|
// [8] xx xx xx max3 xx xx xx max2 xx xx xx max1 xx xx xx max0
|
|
_mm_pmaxub(b, a, b) // Max of r and g and b.
|
|
// [8] max3 00 00 00 max2 00 00 00 max1 00 00 00 max0 00 00 00
|
|
_mm_psllw(b, b, sll24)
|
|
_mm_pmaxub(accum0, b, accum0)
|
|
".set pop \n\t"
|
|
:[ah]"=&f"(ah), [al]"=&f"(al), [bh]"=&f"(bh), [bl]"=&f"(bl),
|
|
[accum0h]"+f"(accum0h), [accum0l]"+f"(accum0l), [tmp]"=&r"(tmp),
|
|
[srl8]"=&f"(srl8), [srl16]"=&f"(srl16), [sll24]"=&f"(sll24)
|
|
);
|
|
} else {
|
|
double maskh, maskl;
|
|
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set arch=loongson3a \n\t"
|
|
// Set value of alpha channels to 0xFF.
|
|
"li %[tmp], 0xff000000 \n\t"
|
|
"mtc1 %[tmp], %[maskl] \n\t"
|
|
"punpcklwd %[maskl], %[maskl], %[maskl] \n\t"
|
|
"mov.d %[maskh], %[maskl] \n\t"
|
|
_mm_or(accum0, accum0, mask)
|
|
".set pop \n\t"
|
|
:[maskh]"=&f"(maskh), [maskl]"=&f"(maskl),
|
|
[accum0h]"+f"(accum0h), [accum0l]"+f"(accum0l),
|
|
[tmp]"=&r"(tmp)
|
|
);
|
|
}
|
|
|
|
double s4, s64;
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set arch=loongson3a \n\t"
|
|
"li %[tmp], 4 \n\t"
|
|
"mtc1 %[tmp], %[s4] \n\t"
|
|
"li %[tmp], 64 \n\t"
|
|
"mtc1 %[tmp], %[s64] \n\t"
|
|
".set pop \n\t"
|
|
:[s4]"=f"(s4), [s64]"=f"(s64),
|
|
[tmp]"=&r"(tmp)
|
|
);
|
|
for (int out_x = width; out_x < pixel_width; out_x++) {
|
|
double t;
|
|
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set arch=loongson3a \n\t"
|
|
"swc1 %[accum0l], (%[out_row]) \n\t"
|
|
_mm_psrlq(accum0, accum0, s4, s64, t)
|
|
".set pop \n\t"
|
|
:[t]"=&f"(t),
|
|
[accum0h]"+f"(accum0h), [accum0l]"+f"(accum0l)
|
|
:[out_row]"r"(out_row), [s4]"f"(s4), [s64]"f"(s64)
|
|
:"memory"
|
|
);
|
|
out_row += 4;
|
|
}
|
|
}
|
|
}
|
|
|
|
void ConvolveVertically_LS3(const ConvolutionFilter1D::Fixed* filter_values,
|
|
int filter_length,
|
|
unsigned char* const* source_data_rows,
|
|
int pixel_width,
|
|
unsigned char* out_row, bool has_alpha) {
|
|
if (has_alpha) {
|
|
ConvolveVertically_LS3_impl<true>(filter_values, filter_length,
|
|
source_data_rows, pixel_width, out_row);
|
|
} else {
|
|
ConvolveVertically_LS3_impl<false>(filter_values, filter_length,
|
|
source_data_rows, pixel_width, out_row);
|
|
}
|
|
}
|
|
|
|
} // namespace skia
|
|
|
|
#endif /* _MIPS_ARCH_LOONGSON3A */
|