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diff --git a/gfx/2d/convolverLS3.cpp b/gfx/2d/convolverLS3.cpp
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-// Copyright (c) 2014-2015 The Chromium Authors. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above copyright
-// notice, this list of conditions and the following disclaimer in
-// the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google, Inc. nor the names of its contributors
-// may be used to endorse or promote products derived from this
-// software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
-// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-// SUCH DAMAGE.
-
-#include "convolver.h"
-#include <algorithm>
-#include "skia/include/core/SkTypes.h"
-
-#if defined(_MIPS_ARCH_LOONGSON3A)
-
-#include "MMIHelpers.h"
-
-namespace skia {
-
-// Convolves horizontally along a single row. The row data is given in
-// |src_data| and continues for the num_values() of the filter.
-void ConvolveHorizontally_LS3(const unsigned char* src_data,
- const ConvolutionFilter1D& filter,
- unsigned char* out_row) {
- int num_values = filter.num_values();
- int tmp, filter_offset, filter_length;
- double zero, mask[4], shuf_50, shuf_fa;
-
- asm volatile (
- ".set push \n\t"
- ".set arch=loongson3a \n\t"
- "xor %[zero], %[zero], %[zero] \n\t"
- // |mask| will be used to decimate all extra filter coefficients that are
- // loaded by SIMD when |filter_length| is not divisible by 4.
- // mask[0] is not used in following algorithm.
- "li %[tmp], 1 \n\t"
- "dsll32 %[tmp], 0x10 \n\t"
- "daddiu %[tmp], -1 \n\t"
- "dmtc1 %[tmp], %[mask3] \n\t"
- "dsrl %[tmp], 0x10 \n\t"
- "mtc1 %[tmp], %[mask2] \n\t"
- "dsrl %[tmp], 0x10 \n\t"
- "mtc1 %[tmp], %[mask1] \n\t"
- "ori %[tmp], $0, 0x50 \n\t"
- "mtc1 %[tmp], %[shuf_50] \n\t"
- "ori %[tmp], $0, 0xfa \n\t"
- "mtc1 %[tmp], %[shuf_fa] \n\t"
- ".set pop \n\t"
- :[zero]"=f"(zero), [mask1]"=f"(mask[1]),
- [mask2]"=f"(mask[2]), [mask3]"=f"(mask[3]),
- [shuf_50]"=f"(shuf_50), [shuf_fa]"=f"(shuf_fa),
- [tmp]"=&r"(tmp)
- );
-
- // Output one pixel each iteration, calculating all channels (RGBA) together.
- for (int out_x = 0; out_x < num_values; out_x++) {
- const ConvolutionFilter1D::Fixed* filter_values =
- filter.FilterForValue(out_x, &filter_offset, &filter_length);
- double accumh, accuml;
- // Compute the first pixel in this row that the filter affects. It will
- // touch |filter_length| pixels (4 bytes each) after this.
- const void *row_to_filter =
- reinterpret_cast<const void*>(&src_data[filter_offset << 2]);
-
- asm volatile (
- ".set push \n\t"
- ".set arch=loongson3a \n\t"
- _mm_xor(accum, accum, accum)
- ".set pop \n\t"
- :[accumh]"=f"(accumh), [accuml]"=f"(accuml)
- );
-
- // We will load and accumulate with four coefficients per iteration.
- for (int filter_x = 0; filter_x < filter_length >> 2; filter_x++) {
- double src16h, src16l, mul_hih, mul_hil, mul_loh, mul_lol;
- double coeffh, coeffl, src8h, src8l, th, tl, coeff16h, coeff16l;
-
- asm volatile (
- ".set push \n\t"
- ".set arch=loongson3a \n\t"
- // Load 4 coefficients => duplicate 1st and 2nd of them for all channels.
- // [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(coeff16, coeff, shuf_50)
- // [16] c1 c1 c1 c1 c0 c0 c0 c0
- _mm_punpcklhw(coeff16, coeff16, coeff16)
- // Load four pixels => unpack the first two pixels to 16 bits =>
- // multiply with coefficients => accumulate the convolution result.
- // [8] a3 b3 g3 r3 a2 b2 g2 r2 a1 b1 g1 r1 a0 b0 g0 r0
- "gsldlc1 %[src8h], 0xf(%[rtf]) \n\t"
- "gsldrc1 %[src8h], 0x8(%[rtf]) \n\t"
- "gsldlc1 %[src8l], 0x7(%[rtf]) \n\t"
- "gsldrc1 %[src8l], 0x0(%[rtf]) \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*c0 b0*c0 g0*c0 r0*c0
- _mm_punpcklhw(t, mul_lo, mul_hi)
- _mm_paddw(accum, accum, t)
- // [32] a1*c1 b1*c1 g1*c1 r1*c1
- _mm_punpckhhw(t, mul_lo, mul_hi)
- _mm_paddw(accum, accum, t)
- // Duplicate 3rd and 4th coefficients for all channels =>
- // unpack the 3rd and 4th pixels to 16 bits => multiply with coefficients
- // => accumulate the convolution results.
- // [16] xx xx xx xx c3 c3 c2 c2
- _mm_pshuflh(coeff16, coeff, shuf_fa)
- // [16] c3 c3 c3 c3 c2 c2 c2 c2
- _mm_punpcklhw(coeff16, coeff16, coeff16)
- // [16] a3 g3 b3 r3 a2 g2 b2 r2
- _mm_punpckhbh(src16, src8, zero)
- _mm_pmulhh(mul_hi, src16, coeff16)
- _mm_pmullh(mul_lo, src16, coeff16)
- // [32] a2*c2 b2*c2 g2*c2 r2*c2
- _mm_punpcklhw(t, mul_lo, mul_hi)
- _mm_paddw(accum, accum, t)
- // [32] a3*c3 b3*c3 g3*c3 r3*c3
- _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),
- [accumh]"+f"(accumh), [accuml]"+f"(accuml),
- [src16h]"=&f"(src16h), [src16l]"=&f"(src16l),
- [coeffh]"=&f"(coeffh), [coeffl]"=&f"(coeffl),
- [coeff16h]"=&f"(coeff16h), [coeff16l]"=&f"(coeff16l),
- [mul_hih]"=&f"(mul_hih), [mul_hil]"=&f"(mul_hil),
- [mul_loh]"=&f"(mul_loh), [mul_lol]"=&f"(mul_lol)
- :[zeroh]"f"(zero), [zerol]"f"(zero),
- [shuf_50]"f"(shuf_50), [shuf_fa]"f"(shuf_fa),
- [fval]"r"(filter_values), [rtf]"r"(row_to_filter)
- );
-
- // Advance the pixel and coefficients pointers.
- row_to_filter += 16;
- filter_values += 4;
- }
-
- // When |filter_length| is not divisible by 4, we need to decimate some of
- // the filter coefficient that was loaded incorrectly to zero; Other than
- // that the algorithm is same with above, except that the 4th pixel will be
- // always absent.
- int r = filter_length & 3;
- if (r) {
- double coeffh, coeffl, th, tl, coeff16h, coeff16l;
- double src8h, src8l, src16h, src16l, mul_hih, mul_hil, mul_loh, mul_lol;
-
- 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(coeff16, coeff, shuf_50)
- _mm_punpcklhw(coeff16, coeff16, coeff16)
- "gsldlc1 %[src8h], 0xf(%[rtf]) \n\t"
- "gsldrc1 %[src8h], 0x8(%[rtf]) \n\t"
- "gsldlc1 %[src8l], 0x7(%[rtf]) \n\t"
- "gsldrc1 %[src8l], 0x0(%[rtf]) \n\t"
- _mm_punpcklbh(src16, src8, zero)
- _mm_pmulhh(mul_hi, src16, coeff16)
- _mm_pmullh(mul_lo, src16, coeff16)
- _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_pshuflh(coeff16, coeff, shuf_fa)
- _mm_punpcklhw(coeff16, coeff16, coeff16)
- _mm_pmulhh(mul_hi, src16, coeff16)
- _mm_pmullh(mul_lo, src16, coeff16)
- _mm_punpcklhw(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),
- [accumh]"+f"(accumh), [accuml]"+f"(accuml),
- [src16h]"=&f"(src16h), [src16l]"=&f"(src16l),
- [coeffh]"=&f"(coeffh), [coeffl]"=&f"(coeffl),
- [coeff16h]"=&f"(coeff16h), [coeff16l]"=&f"(coeff16l),
- [mul_hih]"=&f"(mul_hih), [mul_hil]"=&f"(mul_hil),
- [mul_loh]"=&f"(mul_loh), [mul_lol]"=&f"(mul_lol)
- :[fval]"r"(filter_values), [rtf]"r"(row_to_filter),
- [zeroh]"f"(zero), [zerol]"f"(zero), [mask]"f"(mask[r]),
- [shuf_50]"f"(shuf_50), [shuf_fa]"f"(shuf_fa)
- );
- }
-
- 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"
- // Shift right for fixed point implementation.
- _mm_psraw(accum, accum, sra)
- // Packing 32 bits |accum| to 16 bits per channel (signed saturation).
- _mm_packsswh(accum, accum, zero, t)
- // Packing 16 bits |accum| to 8 bits per channel (unsigned saturation).
- _mm_packushb(accum, accum, zero, t)
- // Store the pixel value of 32 bits.
- "swc1 %[accuml], (%[out_row]) \n\t"
- ".set pop \n\t"
- :[sra]"=&f"(sra), [t]"=&f"(t), [tmp]"=&r"(tmp),
- [accumh]"+f"(accumh), [accuml]"+f"(accuml)
- :[sk_sra]"i"(ConvolutionFilter1D::kShiftBits),
- [out_row]"r"(out_row), [zeroh]"f"(zero), [zerol]"f"(zero)
- :"memory"
- );
-
- out_row += 4;
- }
-}
-
-// Convolves horizontally along a single row. The row data is given in
-// |src_data| and continues for the [begin, end) of the filter.
-// Process one pixel at a time.
-void ConvolveHorizontally1_LS3(const unsigned char* src_data,
- const ConvolutionFilter1D& filter,
- unsigned char* out_row) {
- int num_values = filter.num_values();
- double zero;
- double sra;
-
- asm volatile (
- ".set push \n"
- ".set arch=loongson3a \n"
- "xor %[zero], %[zero], %[zero] \n"
- "mtc1 %[sk_sra], %[sra] \n"
- ".set pop \n"
- :[zero]"=&f"(zero), [sra]"=&f"(sra)
- :[sk_sra]"r"(ConvolutionFilter1D::kShiftBits)
- );
- // Loop over each pixel on this row in the output image.
- for (int out_x = 0; out_x < num_values; out_x++) {
- // Get the filter that determines the current output pixel.
- int filter_offset;
- int filter_length;
- const ConvolutionFilter1D::Fixed* filter_values =
- filter.FilterForValue(out_x, &filter_offset, &filter_length);
-
- // Compute the first pixel in this row that the filter affects. It will
- // touch |filter_length| pixels (4 bytes each) after this.
- const unsigned char* row_to_filter = &src_data[filter_offset * 4];
-
- // Apply the filter to the row to get the destination pixel in |accum|.
- double accuml;
- double accumh;
- asm volatile (
- ".set push \n"
- ".set arch=loongson3a \n"
- "xor %[accuml], %[accuml], %[accuml] \n"
- "xor %[accumh], %[accumh], %[accumh] \n"
- ".set pop \n"
- :[accuml]"=&f"(accuml), [accumh]"=&f"(accumh)
- );
- for (int filter_x = 0; filter_x < filter_length; filter_x++) {
- double src8;
- double src16;
- double coeff;
- double coeff16;
- asm volatile (
- ".set push \n"
- ".set arch=loongson3a \n"
- "lwc1 %[src8], %[rtf] \n"
- "mtc1 %[fv], %[coeff] \n"
- "pshufh %[coeff16], %[coeff], %[zero] \n"
- "punpcklbh %[src16], %[src8], %[zero] \n"
- "pmullh %[src8], %[src16], %[coeff16] \n"
- "pmulhh %[coeff], %[src16], %[coeff16] \n"
- "punpcklhw %[src16], %[src8], %[coeff] \n"
- "punpckhhw %[coeff16], %[src8], %[coeff] \n"
- "paddw %[accuml], %[accuml], %[src16] \n"
- "paddw %[accumh], %[accumh], %[coeff16] \n"
- ".set pop \n"
- :[accuml]"+f"(accuml), [accumh]"+f"(accumh),
- [src8]"=&f"(src8), [src16]"=&f"(src16),
- [coeff]"=&f"(coeff), [coeff16]"=&f"(coeff16)
- :[rtf]"m"(row_to_filter[filter_x * 4]),
- [fv]"r"(filter_values[filter_x]), [zero]"f"(zero)
- );
- }
-
- asm volatile (
- ".set push \n"
- ".set arch=loongson3a \n"
- // Bring this value back in range. All of the filter scaling factors
- // are in fixed point with kShiftBits bits of fractional part.
- "psraw %[accuml], %[accuml], %[sra] \n"
- "psraw %[accumh], %[accumh], %[sra] \n"
- // Store the new pixel.
- "packsswh %[accuml], %[accuml], %[accumh] \n"
- "packushb %[accuml], %[accuml], %[zero] \n"
- "swc1 %[accuml], %[out_row] \n"
- ".set pop \n"
- :[accuml]"+f"(accuml), [accumh]"+f"(accumh)
- :[sra]"f"(sra), [zero]"f"(zero), [out_row]"m"(out_row[out_x * 4])
- :"memory"
- );
- }
-}
-
-// Convolves horizontally along four rows. The row data is given in
-// |src_data| and continues for the num_values() of the filter.
-// The algorithm is almost same as |ConvolveHorizontally_LS3|. Please
-// refer to that function for detailed comments.
-void ConvolveHorizontally4_LS3(const unsigned char* src_data[4],
- const ConvolutionFilter1D& filter,
- unsigned char* out_row[4]) {
- int num_values = filter.num_values();
- int tmp, filter_offset, filter_length;
- double zero, mask[4], shuf_50, shuf_fa;
-
- asm volatile (
- ".set push \n\t"
- ".set arch=loongson3a \n\t"
- "xor %[zero], %[zero], %[zero] \n\t"
- // |mask| will be used to decimate all extra filter coefficients that are
- // loaded by SIMD when |filter_length| is not divisible by 4.
- // mask[0] is not used in following algorithm.
- "li %[tmp], 1 \n\t"
- "dsll32 %[tmp], 0x10 \n\t"
- "daddiu %[tmp], -1 \n\t"
- "dmtc1 %[tmp], %[mask3] \n\t"
- "dsrl %[tmp], 0x10 \n\t"
- "mtc1 %[tmp], %[mask2] \n\t"
- "dsrl %[tmp], 0x10 \n\t"
- "mtc1 %[tmp], %[mask1] \n\t"
- "ori %[tmp], $0, 0x50 \n\t"
- "mtc1 %[tmp], %[shuf_50] \n\t"
- "ori %[tmp], $0, 0xfa \n\t"
- "mtc1 %[tmp], %[shuf_fa] \n\t"
- ".set pop \n\t"
- :[zero]"=f"(zero), [mask1]"=f"(mask[1]),
- [mask2]"=f"(mask[2]), [mask3]"=f"(mask[3]),
- [shuf_50]"=f"(shuf_50), [shuf_fa]"=f"(shuf_fa),
- [tmp]"=&r"(tmp)
- );
-
- // Output one pixel each iteration, calculating all channels (RGBA) together.
- for (int out_x = 0; out_x < num_values; out_x++) {
- const ConvolutionFilter1D::Fixed* filter_values =
- filter.FilterForValue(out_x, &filter_offset, &filter_length);
- double accum0h, accum0l, accum1h, accum1l;
- double accum2h, accum2l, accum3h, accum3l;
-
- // four pixels in a column per iteration.
- 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)
- );
-
- 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 */
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-13 13:48:44 +0000