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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 2024-11-16 07:22:15 +0000