/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkSwizzler_opts_DEFINED
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#define SkSwizzler_opts_DEFINED
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#include "SkColorData.h"
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#include <utility>
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#if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSSE3
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#include <immintrin.h>
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#elif defined(SK_ARM_HAS_NEON)
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#include <arm_neon.h>
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#endif
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namespace SK_OPTS_NS {
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static void RGBA_to_rgbA_portable(uint32_t* dst, const uint32_t* src, int count) {
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for (int i = 0; i < count; i++) {
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uint8_t a = src[i] >> 24,
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b = src[i] >> 16,
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g = src[i] >> 8,
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r = src[i] >> 0;
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b = (b*a+127)/255;
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g = (g*a+127)/255;
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r = (r*a+127)/255;
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dst[i] = (uint32_t)a << 24
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| (uint32_t)b << 16
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| (uint32_t)g << 8
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| (uint32_t)r << 0;
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}
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}
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static void RGBA_to_bgrA_portable(uint32_t* dst, const uint32_t* src, int count) {
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for (int i = 0; i < count; i++) {
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uint8_t a = src[i] >> 24,
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b = src[i] >> 16,
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g = src[i] >> 8,
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r = src[i] >> 0;
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b = (b*a+127)/255;
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g = (g*a+127)/255;
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r = (r*a+127)/255;
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dst[i] = (uint32_t)a << 24
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| (uint32_t)r << 16
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| (uint32_t)g << 8
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| (uint32_t)b << 0;
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}
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}
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static void RGBA_to_BGRA_portable(uint32_t* dst, const uint32_t* src, int count) {
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for (int i = 0; i < count; i++) {
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uint8_t a = src[i] >> 24,
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b = src[i] >> 16,
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g = src[i] >> 8,
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r = src[i] >> 0;
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dst[i] = (uint32_t)a << 24
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| (uint32_t)r << 16
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| (uint32_t)g << 8
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| (uint32_t)b << 0;
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}
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}
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static void RGB_to_RGB1_portable(uint32_t dst[], const uint8_t* src, int count) {
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for (int i = 0; i < count; i++) {
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uint8_t r = src[0],
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g = src[1],
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b = src[2];
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src += 3;
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dst[i] = (uint32_t)0xFF << 24
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| (uint32_t)b << 16
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| (uint32_t)g << 8
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| (uint32_t)r << 0;
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}
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}
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static void RGB_to_BGR1_portable(uint32_t dst[], const uint8_t* src, int count) {
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for (int i = 0; i < count; i++) {
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uint8_t r = src[0],
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g = src[1],
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b = src[2];
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src += 3;
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dst[i] = (uint32_t)0xFF << 24
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| (uint32_t)r << 16
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| (uint32_t)g << 8
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| (uint32_t)b << 0;
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}
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}
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static void gray_to_RGB1_portable(uint32_t dst[], const uint8_t* src, int count) {
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for (int i = 0; i < count; i++) {
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dst[i] = (uint32_t)0xFF << 24
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| (uint32_t)src[i] << 16
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| (uint32_t)src[i] << 8
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| (uint32_t)src[i] << 0;
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}
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}
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static void grayA_to_RGBA_portable(uint32_t dst[], const uint8_t* src, int count) {
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for (int i = 0; i < count; i++) {
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uint8_t g = src[0],
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a = src[1];
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src += 2;
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dst[i] = (uint32_t)a << 24
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| (uint32_t)g << 16
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| (uint32_t)g << 8
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| (uint32_t)g << 0;
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}
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}
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static void grayA_to_rgbA_portable(uint32_t dst[], const uint8_t* src, int count) {
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for (int i = 0; i < count; i++) {
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uint8_t g = src[0],
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a = src[1];
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src += 2;
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g = (g*a+127)/255;
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dst[i] = (uint32_t)a << 24
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| (uint32_t)g << 16
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| (uint32_t)g << 8
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| (uint32_t)g << 0;
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}
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}
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static void inverted_CMYK_to_RGB1_portable(uint32_t* dst, const uint32_t* src, int count) {
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for (int i = 0; i < count; i++) {
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uint8_t k = src[i] >> 24,
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y = src[i] >> 16,
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m = src[i] >> 8,
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c = src[i] >> 0;
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// See comments in SkSwizzler.cpp for details on the conversion formula.
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uint8_t b = (y*k+127)/255,
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g = (m*k+127)/255,
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r = (c*k+127)/255;
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dst[i] = (uint32_t)0xFF << 24
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| (uint32_t) b << 16
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| (uint32_t) g << 8
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| (uint32_t) r << 0;
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}
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}
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static void inverted_CMYK_to_BGR1_portable(uint32_t* dst, const uint32_t* src, int count) {
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for (int i = 0; i < count; i++) {
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uint8_t k = src[i] >> 24,
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y = src[i] >> 16,
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m = src[i] >> 8,
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c = src[i] >> 0;
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uint8_t b = (y*k+127)/255,
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g = (m*k+127)/255,
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r = (c*k+127)/255;
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dst[i] = (uint32_t)0xFF << 24
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| (uint32_t) r << 16
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| (uint32_t) g << 8
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| (uint32_t) b << 0;
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}
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}
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#if defined(SK_ARM_HAS_NEON)
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// Rounded divide by 255, (x + 127) / 255
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static uint8x8_t div255_round(uint16x8_t x) {
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// result = (x + 127) / 255
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// result = (x + 127) / 256 + error1
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//
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// error1 = (x + 127) / (255 * 256)
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// error1 = (x + 127) / (256 * 256) + error2
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//
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// error2 = (x + 127) / (255 * 256 * 256)
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//
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// The maximum value of error2 is too small to matter. Thus:
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// result = (x + 127) / 256 + (x + 127) / (256 * 256)
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// result = ((x + 127) / 256 + x + 127) / 256
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// result = ((x + 127) >> 8 + x + 127) >> 8
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//
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// Use >>> to represent "rounded right shift" which, conveniently,
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// NEON supports in one instruction.
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// result = ((x >>> 8) + x) >>> 8
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//
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// Note that the second right shift is actually performed as an
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// "add, round, and narrow back to 8-bits" instruction.
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return vraddhn_u16(x, vrshrq_n_u16(x, 8));
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}
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// Scale a byte by another, (x * y + 127) / 255
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static uint8x8_t scale(uint8x8_t x, uint8x8_t y) {
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return div255_round(vmull_u8(x, y));
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}
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template <bool kSwapRB>
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static void premul_should_swapRB(uint32_t* dst, const uint32_t* src, int count) {
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while (count >= 8) {
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// Load 8 pixels.
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uint8x8x4_t rgba = vld4_u8((const uint8_t*) src);
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uint8x8_t a = rgba.val[3],
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b = rgba.val[2],
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g = rgba.val[1],
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r = rgba.val[0];
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// Premultiply.
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b = scale(b, a);
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g = scale(g, a);
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r = scale(r, a);
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// Store 8 premultiplied pixels.
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if (kSwapRB) {
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rgba.val[2] = r;
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rgba.val[1] = g;
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rgba.val[0] = b;
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} else {
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rgba.val[2] = b;
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rgba.val[1] = g;
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rgba.val[0] = r;
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}
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vst4_u8((uint8_t*) dst, rgba);
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src += 8;
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dst += 8;
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count -= 8;
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}
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// Call portable code to finish up the tail of [0,8) pixels.
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auto proc = kSwapRB ? RGBA_to_bgrA_portable : RGBA_to_rgbA_portable;
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proc(dst, src, count);
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}
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/*not static*/ inline void RGBA_to_rgbA(uint32_t* dst, const uint32_t* src, int count) {
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premul_should_swapRB<false>(dst, src, count);
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}
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/*not static*/ inline void RGBA_to_bgrA(uint32_t* dst, const uint32_t* src, int count) {
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premul_should_swapRB<true>(dst, src, count);
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}
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/*not static*/ inline void RGBA_to_BGRA(uint32_t* dst, const uint32_t* src, int count) {
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using std::swap;
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while (count >= 16) {
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// Load 16 pixels.
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uint8x16x4_t rgba = vld4q_u8((const uint8_t*) src);
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// Swap r and b.
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swap(rgba.val[0], rgba.val[2]);
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// Store 16 pixels.
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vst4q_u8((uint8_t*) dst, rgba);
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src += 16;
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dst += 16;
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count -= 16;
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}
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if (count >= 8) {
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// Load 8 pixels.
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uint8x8x4_t rgba = vld4_u8((const uint8_t*) src);
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// Swap r and b.
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swap(rgba.val[0], rgba.val[2]);
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// Store 8 pixels.
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vst4_u8((uint8_t*) dst, rgba);
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src += 8;
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dst += 8;
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count -= 8;
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}
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RGBA_to_BGRA_portable(dst, src, count);
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}
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template <bool kSwapRB>
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static void insert_alpha_should_swaprb(uint32_t dst[], const uint8_t* src, int count) {
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while (count >= 16) {
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// Load 16 pixels.
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uint8x16x3_t rgb = vld3q_u8(src);
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// Insert an opaque alpha channel and swap if needed.
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uint8x16x4_t rgba;
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if (kSwapRB) {
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rgba.val[0] = rgb.val[2];
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rgba.val[2] = rgb.val[0];
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} else {
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rgba.val[0] = rgb.val[0];
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rgba.val[2] = rgb.val[2];
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}
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rgba.val[1] = rgb.val[1];
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rgba.val[3] = vdupq_n_u8(0xFF);
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// Store 16 pixels.
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vst4q_u8((uint8_t*) dst, rgba);
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src += 16*3;
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dst += 16;
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count -= 16;
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}
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if (count >= 8) {
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// Load 8 pixels.
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uint8x8x3_t rgb = vld3_u8(src);
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// Insert an opaque alpha channel and swap if needed.
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uint8x8x4_t rgba;
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if (kSwapRB) {
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rgba.val[0] = rgb.val[2];
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rgba.val[2] = rgb.val[0];
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} else {
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rgba.val[0] = rgb.val[0];
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rgba.val[2] = rgb.val[2];
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}
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rgba.val[1] = rgb.val[1];
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rgba.val[3] = vdup_n_u8(0xFF);
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// Store 8 pixels.
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vst4_u8((uint8_t*) dst, rgba);
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src += 8*3;
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dst += 8;
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count -= 8;
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}
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// Call portable code to finish up the tail of [0,8) pixels.
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auto proc = kSwapRB ? RGB_to_BGR1_portable : RGB_to_RGB1_portable;
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proc(dst, src, count);
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}
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/*not static*/ inline void RGB_to_RGB1(uint32_t dst[], const uint8_t* src, int count) {
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insert_alpha_should_swaprb<false>(dst, src, count);
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}
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/*not static*/ inline void RGB_to_BGR1(uint32_t dst[], const uint8_t* src, int count) {
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insert_alpha_should_swaprb<true>(dst, src, count);
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}
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/*not static*/ inline void gray_to_RGB1(uint32_t dst[], const uint8_t* src, int count) {
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while (count >= 16) {
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// Load 16 pixels.
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uint8x16_t gray = vld1q_u8(src);
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// Set each of the color channels.
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uint8x16x4_t rgba;
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rgba.val[0] = gray;
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rgba.val[1] = gray;
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rgba.val[2] = gray;
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rgba.val[3] = vdupq_n_u8(0xFF);
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// Store 16 pixels.
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vst4q_u8((uint8_t*) dst, rgba);
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src += 16;
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dst += 16;
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count -= 16;
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}
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if (count >= 8) {
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// Load 8 pixels.
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uint8x8_t gray = vld1_u8(src);
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// Set each of the color channels.
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uint8x8x4_t rgba;
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rgba.val[0] = gray;
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rgba.val[1] = gray;
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rgba.val[2] = gray;
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rgba.val[3] = vdup_n_u8(0xFF);
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// Store 8 pixels.
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vst4_u8((uint8_t*) dst, rgba);
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src += 8;
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dst += 8;
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count -= 8;
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}
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gray_to_RGB1_portable(dst, src, count);
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}
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template <bool kPremul>
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static void expand_grayA(uint32_t dst[], const uint8_t* src, int count) {
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while (count >= 16) {
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// Load 16 pixels.
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uint8x16x2_t ga = vld2q_u8(src);
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// Premultiply if requested.
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if (kPremul) {
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ga.val[0] = vcombine_u8(
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scale(vget_low_u8(ga.val[0]), vget_low_u8(ga.val[1])),
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scale(vget_high_u8(ga.val[0]), vget_high_u8(ga.val[1])));
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}
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// Set each of the color channels.
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uint8x16x4_t rgba;
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rgba.val[0] = ga.val[0];
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rgba.val[1] = ga.val[0];
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rgba.val[2] = ga.val[0];
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rgba.val[3] = ga.val[1];
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// Store 16 pixels.
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vst4q_u8((uint8_t*) dst, rgba);
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src += 16*2;
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dst += 16;
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count -= 16;
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}
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if (count >= 8) {
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// Load 8 pixels.
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uint8x8x2_t ga = vld2_u8(src);
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// Premultiply if requested.
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if (kPremul) {
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ga.val[0] = scale(ga.val[0], ga.val[1]);
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}
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// Set each of the color channels.
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uint8x8x4_t rgba;
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rgba.val[0] = ga.val[0];
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rgba.val[1] = ga.val[0];
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rgba.val[2] = ga.val[0];
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rgba.val[3] = ga.val[1];
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// Store 8 pixels.
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vst4_u8((uint8_t*) dst, rgba);
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src += 8*2;
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dst += 8;
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count -= 8;
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}
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auto proc = kPremul ? grayA_to_rgbA_portable : grayA_to_RGBA_portable;
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proc(dst, src, count);
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}
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/*not static*/ inline void grayA_to_RGBA(uint32_t dst[], const uint8_t* src, int count) {
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expand_grayA<false>(dst, src, count);
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}
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/*not static*/ inline void grayA_to_rgbA(uint32_t dst[], const uint8_t* src, int count) {
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expand_grayA<true>(dst, src, count);
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}
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enum Format { kRGB1, kBGR1 };
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template <Format format>
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static void inverted_cmyk_to(uint32_t* dst, const uint32_t* src, int count) {
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while (count >= 8) {
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// Load 8 cmyk pixels.
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uint8x8x4_t pixels = vld4_u8((const uint8_t*) src);
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uint8x8_t k = pixels.val[3],
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y = pixels.val[2],
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m = pixels.val[1],
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c = pixels.val[0];
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// Scale to r, g, b.
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uint8x8_t b = scale(y, k);
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uint8x8_t g = scale(m, k);
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uint8x8_t r = scale(c, k);
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// Store 8 rgba pixels.
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if (kBGR1 == format) {
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pixels.val[3] = vdup_n_u8(0xFF);
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pixels.val[2] = r;
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pixels.val[1] = g;
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pixels.val[0] = b;
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} else {
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pixels.val[3] = vdup_n_u8(0xFF);
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pixels.val[2] = b;
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pixels.val[1] = g;
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pixels.val[0] = r;
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}
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vst4_u8((uint8_t*) dst, pixels);
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src += 8;
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dst += 8;
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count -= 8;
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}
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auto proc = (kBGR1 == format) ? inverted_CMYK_to_BGR1_portable : inverted_CMYK_to_RGB1_portable;
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proc(dst, src, count);
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}
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/*not static*/ inline void inverted_CMYK_to_RGB1(uint32_t dst[], const uint32_t* src, int count) {
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inverted_cmyk_to<kRGB1>(dst, src, count);
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}
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/*not static*/ inline void inverted_CMYK_to_BGR1(uint32_t dst[], const uint32_t* src, int count) {
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inverted_cmyk_to<kBGR1>(dst, src, count);
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}
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#elif SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSSE3
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// Scale a byte by another.
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// Inputs are stored in 16-bit lanes, but are not larger than 8-bits.
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static __m128i scale(__m128i x, __m128i y) {
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const __m128i _128 = _mm_set1_epi16(128);
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const __m128i _257 = _mm_set1_epi16(257);
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// (x+127)/255 == ((x+128)*257)>>16 for 0 <= x <= 255*255.
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return _mm_mulhi_epu16(_mm_add_epi16(_mm_mullo_epi16(x, y), _128), _257);
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}
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template <bool kSwapRB>
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static void premul_should_swapRB(uint32_t* dst, const uint32_t* src, int count) {
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auto premul8 = [](__m128i* lo, __m128i* hi) {
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const __m128i zeros = _mm_setzero_si128();
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__m128i planar;
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if (kSwapRB) {
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planar = _mm_setr_epi8(2,6,10,14, 1,5,9,13, 0,4,8,12, 3,7,11,15);
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} else {
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planar = _mm_setr_epi8(0,4,8,12, 1,5,9,13, 2,6,10,14, 3,7,11,15);
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}
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// Swizzle the pixels to 8-bit planar.
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*lo = _mm_shuffle_epi8(*lo, planar); // rrrrgggg bbbbaaaa
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*hi = _mm_shuffle_epi8(*hi, planar); // RRRRGGGG BBBBAAAA
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__m128i rg = _mm_unpacklo_epi32(*lo, *hi), // rrrrRRRR ggggGGGG
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ba = _mm_unpackhi_epi32(*lo, *hi); // bbbbBBBB aaaaAAAA
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// Unpack to 16-bit planar.
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__m128i r = _mm_unpacklo_epi8(rg, zeros), // r_r_r_r_ R_R_R_R_
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g = _mm_unpackhi_epi8(rg, zeros), // g_g_g_g_ G_G_G_G_
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b = _mm_unpacklo_epi8(ba, zeros), // b_b_b_b_ B_B_B_B_
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a = _mm_unpackhi_epi8(ba, zeros); // a_a_a_a_ A_A_A_A_
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// Premultiply!
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r = scale(r, a);
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g = scale(g, a);
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b = scale(b, a);
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// Repack into interlaced pixels.
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rg = _mm_or_si128(r, _mm_slli_epi16(g, 8)); // rgrgrgrg RGRGRGRG
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ba = _mm_or_si128(b, _mm_slli_epi16(a, 8)); // babababa BABABABA
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*lo = _mm_unpacklo_epi16(rg, ba); // rgbargba rgbargba
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*hi = _mm_unpackhi_epi16(rg, ba); // RGBARGBA RGBARGBA
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};
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while (count >= 8) {
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__m128i lo = _mm_loadu_si128((const __m128i*) (src + 0)),
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hi = _mm_loadu_si128((const __m128i*) (src + 4));
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premul8(&lo, &hi);
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_mm_storeu_si128((__m128i*) (dst + 0), lo);
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_mm_storeu_si128((__m128i*) (dst + 4), hi);
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src += 8;
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dst += 8;
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count -= 8;
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}
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if (count >= 4) {
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__m128i lo = _mm_loadu_si128((const __m128i*) src),
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hi = _mm_setzero_si128();
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premul8(&lo, &hi);
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_mm_storeu_si128((__m128i*) dst, lo);
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src += 4;
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dst += 4;
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count -= 4;
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}
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// Call portable code to finish up the tail of [0,4) pixels.
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auto proc = kSwapRB ? RGBA_to_bgrA_portable : RGBA_to_rgbA_portable;
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proc(dst, src, count);
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}
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/*not static*/ inline void RGBA_to_rgbA(uint32_t* dst, const uint32_t* src, int count) {
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premul_should_swapRB<false>(dst, src, count);
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}
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/*not static*/ inline void RGBA_to_bgrA(uint32_t* dst, const uint32_t* src, int count) {
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premul_should_swapRB<true>(dst, src, count);
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}
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/*not static*/ inline void RGBA_to_BGRA(uint32_t* dst, const uint32_t* src, int count) {
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const __m128i swapRB = _mm_setr_epi8(2,1,0,3, 6,5,4,7, 10,9,8,11, 14,13,12,15);
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while (count >= 4) {
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__m128i rgba = _mm_loadu_si128((const __m128i*) src);
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__m128i bgra = _mm_shuffle_epi8(rgba, swapRB);
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_mm_storeu_si128((__m128i*) dst, bgra);
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src += 4;
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dst += 4;
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count -= 4;
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}
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RGBA_to_BGRA_portable(dst, src, count);
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}
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template <bool kSwapRB>
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static void insert_alpha_should_swaprb(uint32_t dst[], const uint8_t* src, int count) {
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const __m128i alphaMask = _mm_set1_epi32(0xFF000000);
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__m128i expand;
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const uint8_t X = 0xFF; // Used a placeholder. The value of X is irrelevant.
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if (kSwapRB) {
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expand = _mm_setr_epi8(2,1,0,X, 5,4,3,X, 8,7,6,X, 11,10,9,X);
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} else {
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expand = _mm_setr_epi8(0,1,2,X, 3,4,5,X, 6,7,8,X, 9,10,11,X);
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}
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while (count >= 6) {
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// Load a vector. While this actually contains 5 pixels plus an
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// extra component, we will discard all but the first four pixels on
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// this iteration.
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__m128i rgb = _mm_loadu_si128((const __m128i*) src);
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// Expand the first four pixels to RGBX and then mask to RGB(FF).
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__m128i rgba = _mm_or_si128(_mm_shuffle_epi8(rgb, expand), alphaMask);
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// Store 4 pixels.
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_mm_storeu_si128((__m128i*) dst, rgba);
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src += 4*3;
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dst += 4;
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count -= 4;
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}
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// Call portable code to finish up the tail of [0,4) pixels.
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auto proc = kSwapRB ? RGB_to_BGR1_portable : RGB_to_RGB1_portable;
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proc(dst, src, count);
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}
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/*not static*/ inline void RGB_to_RGB1(uint32_t dst[], const uint8_t* src, int count) {
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insert_alpha_should_swaprb<false>(dst, src, count);
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}
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/*not static*/ inline void RGB_to_BGR1(uint32_t dst[], const uint8_t* src, int count) {
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insert_alpha_should_swaprb<true>(dst, src, count);
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}
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/*not static*/ inline void gray_to_RGB1(uint32_t dst[], const uint8_t* src, int count) {
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const __m128i alphas = _mm_set1_epi8((uint8_t) 0xFF);
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while (count >= 16) {
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__m128i grays = _mm_loadu_si128((const __m128i*) src);
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__m128i gg_lo = _mm_unpacklo_epi8(grays, grays);
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__m128i gg_hi = _mm_unpackhi_epi8(grays, grays);
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__m128i ga_lo = _mm_unpacklo_epi8(grays, alphas);
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__m128i ga_hi = _mm_unpackhi_epi8(grays, alphas);
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__m128i ggga0 = _mm_unpacklo_epi16(gg_lo, ga_lo);
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__m128i ggga1 = _mm_unpackhi_epi16(gg_lo, ga_lo);
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__m128i ggga2 = _mm_unpacklo_epi16(gg_hi, ga_hi);
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__m128i ggga3 = _mm_unpackhi_epi16(gg_hi, ga_hi);
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_mm_storeu_si128((__m128i*) (dst + 0), ggga0);
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_mm_storeu_si128((__m128i*) (dst + 4), ggga1);
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_mm_storeu_si128((__m128i*) (dst + 8), ggga2);
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_mm_storeu_si128((__m128i*) (dst + 12), ggga3);
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src += 16;
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dst += 16;
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count -= 16;
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}
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gray_to_RGB1_portable(dst, src, count);
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}
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/*not static*/ inline void grayA_to_RGBA(uint32_t dst[], const uint8_t* src, int count) {
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while (count >= 8) {
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__m128i ga = _mm_loadu_si128((const __m128i*) src);
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__m128i gg = _mm_or_si128(_mm_and_si128(ga, _mm_set1_epi16(0x00FF)),
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_mm_slli_epi16(ga, 8));
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__m128i ggga_lo = _mm_unpacklo_epi16(gg, ga);
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__m128i ggga_hi = _mm_unpackhi_epi16(gg, ga);
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_mm_storeu_si128((__m128i*) (dst + 0), ggga_lo);
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_mm_storeu_si128((__m128i*) (dst + 4), ggga_hi);
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src += 8*2;
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dst += 8;
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count -= 8;
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}
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grayA_to_RGBA_portable(dst, src, count);
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}
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/*not static*/ inline void grayA_to_rgbA(uint32_t dst[], const uint8_t* src, int count) {
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while (count >= 8) {
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__m128i grayA = _mm_loadu_si128((const __m128i*) src);
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__m128i g0 = _mm_and_si128(grayA, _mm_set1_epi16(0x00FF));
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__m128i a0 = _mm_srli_epi16(grayA, 8);
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// Premultiply
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g0 = scale(g0, a0);
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__m128i gg = _mm_or_si128(g0, _mm_slli_epi16(g0, 8));
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__m128i ga = _mm_or_si128(g0, _mm_slli_epi16(a0, 8));
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__m128i ggga_lo = _mm_unpacklo_epi16(gg, ga);
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__m128i ggga_hi = _mm_unpackhi_epi16(gg, ga);
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_mm_storeu_si128((__m128i*) (dst + 0), ggga_lo);
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_mm_storeu_si128((__m128i*) (dst + 4), ggga_hi);
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src += 8*2;
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dst += 8;
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count -= 8;
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}
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grayA_to_rgbA_portable(dst, src, count);
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}
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enum Format { kRGB1, kBGR1 };
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template <Format format>
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static void inverted_cmyk_to(uint32_t* dst, const uint32_t* src, int count) {
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auto convert8 = [](__m128i* lo, __m128i* hi) {
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const __m128i zeros = _mm_setzero_si128();
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__m128i planar;
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if (kBGR1 == format) {
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planar = _mm_setr_epi8(2,6,10,14, 1,5,9,13, 0,4,8,12, 3,7,11,15);
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} else {
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planar = _mm_setr_epi8(0,4,8,12, 1,5,9,13, 2,6,10,14, 3,7,11,15);
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}
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// Swizzle the pixels to 8-bit planar.
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*lo = _mm_shuffle_epi8(*lo, planar); // ccccmmmm yyyykkkk
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*hi = _mm_shuffle_epi8(*hi, planar); // CCCCMMMM YYYYKKKK
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__m128i cm = _mm_unpacklo_epi32(*lo, *hi), // ccccCCCC mmmmMMMM
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yk = _mm_unpackhi_epi32(*lo, *hi); // yyyyYYYY kkkkKKKK
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// Unpack to 16-bit planar.
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__m128i c = _mm_unpacklo_epi8(cm, zeros), // c_c_c_c_ C_C_C_C_
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m = _mm_unpackhi_epi8(cm, zeros), // m_m_m_m_ M_M_M_M_
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y = _mm_unpacklo_epi8(yk, zeros), // y_y_y_y_ Y_Y_Y_Y_
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k = _mm_unpackhi_epi8(yk, zeros); // k_k_k_k_ K_K_K_K_
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|
// Scale to r, g, b.
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__m128i r = scale(c, k),
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g = scale(m, k),
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b = scale(y, k);
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|
// Repack into interlaced pixels.
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__m128i rg = _mm_or_si128(r, _mm_slli_epi16(g, 8)), // rgrgrgrg RGRGRGRG
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ba = _mm_or_si128(b, _mm_set1_epi16((uint16_t) 0xFF00)); // b1b1b1b1 B1B1B1B1
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*lo = _mm_unpacklo_epi16(rg, ba); // rgbargba rgbargba
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*hi = _mm_unpackhi_epi16(rg, ba); // RGB1RGB1 RGB1RGB1
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};
|
|
while (count >= 8) {
|
__m128i lo = _mm_loadu_si128((const __m128i*) (src + 0)),
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hi = _mm_loadu_si128((const __m128i*) (src + 4));
|
|
convert8(&lo, &hi);
|
|
_mm_storeu_si128((__m128i*) (dst + 0), lo);
|
_mm_storeu_si128((__m128i*) (dst + 4), hi);
|
|
src += 8;
|
dst += 8;
|
count -= 8;
|
}
|
|
if (count >= 4) {
|
__m128i lo = _mm_loadu_si128((const __m128i*) src),
|
hi = _mm_setzero_si128();
|
|
convert8(&lo, &hi);
|
|
_mm_storeu_si128((__m128i*) dst, lo);
|
|
src += 4;
|
dst += 4;
|
count -= 4;
|
}
|
|
auto proc = (kBGR1 == format) ? inverted_CMYK_to_BGR1_portable : inverted_CMYK_to_RGB1_portable;
|
proc(dst, src, count);
|
}
|
|
/*not static*/ inline void inverted_CMYK_to_RGB1(uint32_t dst[], const uint32_t* src, int count) {
|
inverted_cmyk_to<kRGB1>(dst, src, count);
|
}
|
|
/*not static*/ inline void inverted_CMYK_to_BGR1(uint32_t dst[], const uint32_t* src, int count) {
|
inverted_cmyk_to<kBGR1>(dst, src, count);
|
}
|
|
#else
|
|
/*not static*/ inline void RGBA_to_rgbA(uint32_t* dst, const uint32_t* src, int count) {
|
RGBA_to_rgbA_portable(dst, src, count);
|
}
|
|
/*not static*/ inline void RGBA_to_bgrA(uint32_t* dst, const uint32_t* src, int count) {
|
RGBA_to_bgrA_portable(dst, src, count);
|
}
|
|
/*not static*/ inline void RGBA_to_BGRA(uint32_t* dst, const uint32_t* src, int count) {
|
RGBA_to_BGRA_portable(dst, src, count);
|
}
|
|
/*not static*/ inline void RGB_to_RGB1(uint32_t dst[], const uint8_t* src, int count) {
|
RGB_to_RGB1_portable(dst, src, count);
|
}
|
|
/*not static*/ inline void RGB_to_BGR1(uint32_t dst[], const uint8_t* src, int count) {
|
RGB_to_BGR1_portable(dst, src, count);
|
}
|
|
/*not static*/ inline void gray_to_RGB1(uint32_t dst[], const uint8_t* src, int count) {
|
gray_to_RGB1_portable(dst, src, count);
|
}
|
|
/*not static*/ inline void grayA_to_RGBA(uint32_t dst[], const uint8_t* src, int count) {
|
grayA_to_RGBA_portable(dst, src, count);
|
}
|
|
/*not static*/ inline void grayA_to_rgbA(uint32_t dst[], const uint8_t* src, int count) {
|
grayA_to_rgbA_portable(dst, src, count);
|
}
|
|
/*not static*/ inline void inverted_CMYK_to_RGB1(uint32_t dst[], const uint32_t* src, int count) {
|
inverted_CMYK_to_RGB1_portable(dst, src, count);
|
}
|
|
/*not static*/ inline void inverted_CMYK_to_BGR1(uint32_t dst[], const uint32_t* src, int count) {
|
inverted_CMYK_to_BGR1_portable(dst, src, count);
|
}
|
|
#endif
|
|
}
|
|
#endif // SkSwizzler_opts_DEFINED
|
