The Tor Browser: media/libyuv/unit_test/planar_test.cc@b8a032363ba2 (annotated)

media/libyuv/unit_test/planar_test.cc@b8a032363ba2 (annotated)

media/libyuv/unit_test/planar_test.cc

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /*
  *  Copyright 2011 The LibYuv Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS. All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 #include <stdlib.h>
 #include <time.h>
 #include "libyuv/compare.h"
 #include "libyuv/convert.h"
 #include "libyuv/convert_argb.h"
 #include "libyuv/convert_from.h"
 #include "libyuv/convert_from_argb.h"
 #include "libyuv/cpu_id.h"
 #include "libyuv/format_conversion.h"
 #include "libyuv/planar_functions.h"
 #include "libyuv/rotate.h"
 #include "libyuv/row.h"  // For Sobel
 #include "../unit_test/unit_test.h"
 #if defined(_MSC_VER)
 #define SIMD_ALIGNED(var) __declspec(align(16)) var
 #else  // __GNUC__
 #define SIMD_ALIGNED(var) var __attribute__((aligned(16)))
 #endif
 namespace libyuv {
 TEST_F(libyuvTest, TestAttenuate) {
   const int kSize = 1280 * 4;
   align_buffer_64(orig_pixels, kSize);
   align_buffer_64(atten_pixels, kSize);
   align_buffer_64(unatten_pixels, kSize);
   align_buffer_64(atten2_pixels, kSize);
   // Test unattenuation clamps
   orig_pixels[0 * 4 + 0] = 200u;
   orig_pixels[0 * 4 + 1] = 129u;
   orig_pixels[0 * 4 + 2] = 127u;
   orig_pixels[0 * 4 + 3] = 128u;
   // Test unattenuation transparent and opaque are unaffected
   orig_pixels[1 * 4 + 0] = 16u;
   orig_pixels[1 * 4 + 1] = 64u;
   orig_pixels[1 * 4 + 2] = 192u;
   orig_pixels[1 * 4 + 3] = 0u;
   orig_pixels[2 * 4 + 0] = 16u;
   orig_pixels[2 * 4 + 1] = 64u;
   orig_pixels[2 * 4 + 2] = 192u;
   orig_pixels[2 * 4 + 3] = 255u;
   orig_pixels[3 * 4 + 0] = 16u;
   orig_pixels[3 * 4 + 1] = 64u;
   orig_pixels[3 * 4 + 2] = 192u;
   orig_pixels[3 * 4 + 3] = 128u;
   ARGBUnattenuate(orig_pixels, 0, unatten_pixels, 0, 4, 1);
   EXPECT_EQ(255u, unatten_pixels[0 * 4 + 0]);
   EXPECT_EQ(255u, unatten_pixels[0 * 4 + 1]);
   EXPECT_EQ(254u, unatten_pixels[0 * 4 + 2]);
   EXPECT_EQ(128u, unatten_pixels[0 * 4 + 3]);
   EXPECT_EQ(0u, unatten_pixels[1 * 4 + 0]);
   EXPECT_EQ(0u, unatten_pixels[1 * 4 + 1]);
   EXPECT_EQ(0u, unatten_pixels[1 * 4 + 2]);
   EXPECT_EQ(0u, unatten_pixels[1 * 4 + 3]);
   EXPECT_EQ(16u, unatten_pixels[2 * 4 + 0]);
   EXPECT_EQ(64u, unatten_pixels[2 * 4 + 1]);
   EXPECT_EQ(192u, unatten_pixels[2 * 4 + 2]);
   EXPECT_EQ(255u, unatten_pixels[2 * 4 + 3]);
   EXPECT_EQ(32u, unatten_pixels[3 * 4 + 0]);
   EXPECT_EQ(128u, unatten_pixels[3 * 4 + 1]);
   EXPECT_EQ(255u, unatten_pixels[3 * 4 + 2]);
   EXPECT_EQ(128u, unatten_pixels[3 * 4 + 3]);
   for (int i = 0; i < 1280; ++i) {
     orig_pixels[i * 4 + 0] = i;
     orig_pixels[i * 4 + 1] = i / 2;
     orig_pixels[i * 4 + 2] = i / 3;
     orig_pixels[i * 4 + 3] = i;
   }
   ARGBAttenuate(orig_pixels, 0, atten_pixels, 0, 1280, 1);
   ARGBUnattenuate(atten_pixels, 0, unatten_pixels, 0, 1280, 1);
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     ARGBAttenuate(unatten_pixels, 0, atten2_pixels, 0, 1280, 1);
   }
   for (int i = 0; i < 1280; ++i) {
     EXPECT_NEAR(atten_pixels[i * 4 + 0], atten2_pixels[i * 4 + 0], 2);
     EXPECT_NEAR(atten_pixels[i * 4 + 1], atten2_pixels[i * 4 + 1], 2);
     EXPECT_NEAR(atten_pixels[i * 4 + 2], atten2_pixels[i * 4 + 2], 2);
     EXPECT_NEAR(atten_pixels[i * 4 + 3], atten2_pixels[i * 4 + 3], 2);
   }
   // Make sure transparent, 50% and opaque are fully accurate.
   EXPECT_EQ(0, atten_pixels[0 * 4 + 0]);
   EXPECT_EQ(0, atten_pixels[0 * 4 + 1]);
   EXPECT_EQ(0, atten_pixels[0 * 4 + 2]);
   EXPECT_EQ(0, atten_pixels[0 * 4 + 3]);
   EXPECT_EQ(64, atten_pixels[128 * 4 + 0]);
   EXPECT_EQ(32, atten_pixels[128 * 4 + 1]);
   EXPECT_EQ(21,  atten_pixels[128 * 4 + 2]);
   EXPECT_EQ(128, atten_pixels[128 * 4 + 3]);
   EXPECT_NEAR(255, atten_pixels[255 * 4 + 0], 1);
   EXPECT_NEAR(127, atten_pixels[255 * 4 + 1], 1);
   EXPECT_NEAR(85,  atten_pixels[255 * 4 + 2], 1);
   EXPECT_EQ(255, atten_pixels[255 * 4 + 3]);
   free_aligned_buffer_64(atten2_pixels);
   free_aligned_buffer_64(unatten_pixels);
   free_aligned_buffer_64(atten_pixels);
   free_aligned_buffer_64(orig_pixels);
 }
 static int TestAttenuateI(int width, int height, int benchmark_iterations,
                           int invert, int off) {
   if (width < 1) {
     width = 1;
   }
   const int kBpp = 4;
   const int kStride = (width * kBpp + 15) & ~15;
   align_buffer_64(src_argb, kStride * height + off);
   align_buffer_64(dst_argb_c, kStride * height);
   align_buffer_64(dst_argb_opt, kStride * height);
   srandom(time(NULL));
   for (int i = 0; i < kStride * height; ++i) {
     src_argb[i + off] = (random() & 0xff);
   }
   memset(dst_argb_c, 0, kStride * height);
   memset(dst_argb_opt, 0, kStride * height);
   MaskCpuFlags(0);
   ARGBAttenuate(src_argb + off, kStride,
                 dst_argb_c, kStride,
                 width, invert * height);
   MaskCpuFlags(-1);
   for (int i = 0; i < benchmark_iterations; ++i) {
     ARGBAttenuate(src_argb + off, kStride,
                   dst_argb_opt, kStride,
                   width, invert * height);
   }
   int max_diff = 0;
   for (int i = 0; i < kStride * height; ++i) {
     int abs_diff =
         abs(static_cast<int>(dst_argb_c[i]) -
             static_cast<int>(dst_argb_opt[i]));
     if (abs_diff > max_diff) {
       max_diff = abs_diff;
     }
   }
   free_aligned_buffer_64(src_argb);
   free_aligned_buffer_64(dst_argb_c);
   free_aligned_buffer_64(dst_argb_opt);
   return max_diff;
 }
 TEST_F(libyuvTest, ARGBAttenuate_Any) {
   int max_diff = TestAttenuateI(benchmark_width_ - 1, benchmark_height_,
                                 benchmark_iterations_, +1, 0);
   EXPECT_LE(max_diff, 2);
 }
 TEST_F(libyuvTest, ARGBAttenuate_Unaligned) {
   int max_diff = TestAttenuateI(benchmark_width_, benchmark_height_,
                                 benchmark_iterations_, +1, 1);
   EXPECT_LE(max_diff, 2);
 }
 TEST_F(libyuvTest, ARGBAttenuate_Invert) {
   int max_diff = TestAttenuateI(benchmark_width_, benchmark_height_,
                                 benchmark_iterations_, -1, 0);
   EXPECT_LE(max_diff, 2);
 }
 TEST_F(libyuvTest, ARGBAttenuate_Opt) {
   int max_diff = TestAttenuateI(benchmark_width_, benchmark_height_,
                                 benchmark_iterations_, +1, 0);
   EXPECT_LE(max_diff, 2);
 }
 static int TestUnattenuateI(int width, int height, int benchmark_iterations,
                             int invert, int off) {
   if (width < 1) {
     width = 1;
   }
   const int kBpp = 4;
   const int kStride = (width * kBpp + 15) & ~15;
   align_buffer_64(src_argb, kStride * height + off);
   align_buffer_64(dst_argb_c, kStride * height);
   align_buffer_64(dst_argb_opt, kStride * height);
   srandom(time(NULL));
   for (int i = 0; i < kStride * height; ++i) {
     src_argb[i + off] = (random() & 0xff);
   }
   ARGBAttenuate(src_argb + off, kStride,
                 src_argb + off, kStride,
                 width, height);
   memset(dst_argb_c, 0, kStride * height);
   memset(dst_argb_opt, 0, kStride * height);
   MaskCpuFlags(0);
   ARGBUnattenuate(src_argb + off, kStride,
                   dst_argb_c, kStride,
                   width, invert * height);
   MaskCpuFlags(-1);
   for (int i = 0; i < benchmark_iterations; ++i) {
     ARGBUnattenuate(src_argb + off, kStride,
                     dst_argb_opt, kStride,
                     width, invert * height);
   }
   int max_diff = 0;
   for (int i = 0; i < kStride * height; ++i) {
     int abs_diff =
         abs(static_cast<int>(dst_argb_c[i]) -
             static_cast<int>(dst_argb_opt[i]));
     if (abs_diff > max_diff) {
       max_diff = abs_diff;
     }
   }
   free_aligned_buffer_64(src_argb);
   free_aligned_buffer_64(dst_argb_c);
   free_aligned_buffer_64(dst_argb_opt);
   return max_diff;
 }
 TEST_F(libyuvTest, ARGBUnattenuate_Any) {
   int max_diff = TestUnattenuateI(benchmark_width_ - 1, benchmark_height_,
                                   benchmark_iterations_, +1, 0);
   EXPECT_LE(max_diff, 2);
 }
 TEST_F(libyuvTest, ARGBUnattenuate_Unaligned) {
   int max_diff = TestUnattenuateI(benchmark_width_, benchmark_height_,
                                   benchmark_iterations_, +1, 1);
   EXPECT_LE(max_diff, 2);
 }
 TEST_F(libyuvTest, ARGBUnattenuate_Invert) {
   int max_diff = TestUnattenuateI(benchmark_width_, benchmark_height_,
                                   benchmark_iterations_, -1, 0);
   EXPECT_LE(max_diff, 2);
 }
 TEST_F(libyuvTest, ARGBUnattenuate_Opt) {
   int max_diff = TestUnattenuateI(benchmark_width_, benchmark_height_,
                                   benchmark_iterations_, +1, 0);
   EXPECT_LE(max_diff, 2);
 }
 TEST_F(libyuvTest, TestARGBComputeCumulativeSum) {
   SIMD_ALIGNED(uint8 orig_pixels[16][16][4]);
   SIMD_ALIGNED(int32 added_pixels[16][16][4]);
   for (int y = 0; y < 16; ++y) {
     for (int x = 0; x < 16; ++x) {
       orig_pixels[y][x][0] = 1u;
       orig_pixels[y][x][1] = 2u;
       orig_pixels[y][x][2] = 3u;
       orig_pixels[y][x][3] = 255u;
     }
   }
   ARGBComputeCumulativeSum(&orig_pixels[0][0][0], 16 * 4,
                            &added_pixels[0][0][0], 16 * 4,
 , 16);
   for (int y = 0; y < 16; ++y) {
     for (int x = 0; x < 16; ++x) {
       EXPECT_EQ((x + 1) * (y + 1), added_pixels[y][x][0]);
       EXPECT_EQ((x + 1) * (y + 1) * 2, added_pixels[y][x][1]);
       EXPECT_EQ((x + 1) * (y + 1) * 3, added_pixels[y][x][2]);
       EXPECT_EQ((x + 1) * (y + 1) * 255, added_pixels[y][x][3]);
     }
   }
 }
 TEST_F(libyuvTest, TestARGBGray) {
   SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
   memset(orig_pixels, 0, sizeof(orig_pixels));
   // Test blue
   orig_pixels[0][0] = 255u;
   orig_pixels[0][1] = 0u;
   orig_pixels[0][2] = 0u;
   orig_pixels[0][3] = 128u;
   // Test green
   orig_pixels[1][0] = 0u;
   orig_pixels[1][1] = 255u;
   orig_pixels[1][2] = 0u;
   orig_pixels[1][3] = 0u;
   // Test red
   orig_pixels[2][0] = 0u;
   orig_pixels[2][1] = 0u;
   orig_pixels[2][2] = 255u;
   orig_pixels[2][3] = 255u;
   // Test black
   orig_pixels[3][0] = 0u;
   orig_pixels[3][1] = 0u;
   orig_pixels[3][2] = 0u;
   orig_pixels[3][3] = 255u;
   // Test white
   orig_pixels[4][0] = 255u;
   orig_pixels[4][1] = 255u;
   orig_pixels[4][2] = 255u;
   orig_pixels[4][3] = 255u;
   // Test color
   orig_pixels[5][0] = 16u;
   orig_pixels[5][1] = 64u;
   orig_pixels[5][2] = 192u;
   orig_pixels[5][3] = 224u;
   // Do 16 to test asm version.
   ARGBGray(&orig_pixels[0][0], 0, 0, 0, 16, 1);
   EXPECT_EQ(30u, orig_pixels[0][0]);
   EXPECT_EQ(30u, orig_pixels[0][1]);
   EXPECT_EQ(30u, orig_pixels[0][2]);
   EXPECT_EQ(128u, orig_pixels[0][3]);
   EXPECT_EQ(149u, orig_pixels[1][0]);
   EXPECT_EQ(149u, orig_pixels[1][1]);
   EXPECT_EQ(149u, orig_pixels[1][2]);
   EXPECT_EQ(0u, orig_pixels[1][3]);
   EXPECT_EQ(76u, orig_pixels[2][0]);
   EXPECT_EQ(76u, orig_pixels[2][1]);
   EXPECT_EQ(76u, orig_pixels[2][2]);
   EXPECT_EQ(255u, orig_pixels[2][3]);
   EXPECT_EQ(0u, orig_pixels[3][0]);
   EXPECT_EQ(0u, orig_pixels[3][1]);
   EXPECT_EQ(0u, orig_pixels[3][2]);
   EXPECT_EQ(255u, orig_pixels[3][3]);
   EXPECT_EQ(255u, orig_pixels[4][0]);
   EXPECT_EQ(255u, orig_pixels[4][1]);
   EXPECT_EQ(255u, orig_pixels[4][2]);
   EXPECT_EQ(255u, orig_pixels[4][3]);
   EXPECT_EQ(96u, orig_pixels[5][0]);
   EXPECT_EQ(96u, orig_pixels[5][1]);
   EXPECT_EQ(96u, orig_pixels[5][2]);
   EXPECT_EQ(224u, orig_pixels[5][3]);
   for (int i = 0; i < 1280; ++i) {
     orig_pixels[i][0] = i;
     orig_pixels[i][1] = i / 2;
     orig_pixels[i][2] = i / 3;
     orig_pixels[i][3] = i;
   }
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     ARGBGray(&orig_pixels[0][0], 0, 0, 0, 1280, 1);
   }
 }
 TEST_F(libyuvTest, TestARGBGrayTo) {
   SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
   SIMD_ALIGNED(uint8 gray_pixels[1280][4]);
   memset(orig_pixels, 0, sizeof(orig_pixels));
   // Test blue
   orig_pixels[0][0] = 255u;
   orig_pixels[0][1] = 0u;
   orig_pixels[0][2] = 0u;
   orig_pixels[0][3] = 128u;
   // Test green
   orig_pixels[1][0] = 0u;
   orig_pixels[1][1] = 255u;
   orig_pixels[1][2] = 0u;
   orig_pixels[1][3] = 0u;
   // Test red
   orig_pixels[2][0] = 0u;
   orig_pixels[2][1] = 0u;
   orig_pixels[2][2] = 255u;
   orig_pixels[2][3] = 255u;
   // Test black
   orig_pixels[3][0] = 0u;
   orig_pixels[3][1] = 0u;
   orig_pixels[3][2] = 0u;
   orig_pixels[3][3] = 255u;
   // Test white
   orig_pixels[4][0] = 255u;
   orig_pixels[4][1] = 255u;
   orig_pixels[4][2] = 255u;
   orig_pixels[4][3] = 255u;
   // Test color
   orig_pixels[5][0] = 16u;
   orig_pixels[5][1] = 64u;
   orig_pixels[5][2] = 192u;
   orig_pixels[5][3] = 224u;
   // Do 16 to test asm version.
   ARGBGrayTo(&orig_pixels[0][0], 0, &gray_pixels[0][0], 0, 16, 1);
   EXPECT_EQ(30u, gray_pixels[0][0]);
   EXPECT_EQ(30u, gray_pixels[0][1]);
   EXPECT_EQ(30u, gray_pixels[0][2]);
   EXPECT_EQ(128u, gray_pixels[0][3]);
   EXPECT_EQ(149u, gray_pixels[1][0]);
   EXPECT_EQ(149u, gray_pixels[1][1]);
   EXPECT_EQ(149u, gray_pixels[1][2]);
   EXPECT_EQ(0u, gray_pixels[1][3]);
   EXPECT_EQ(76u, gray_pixels[2][0]);
   EXPECT_EQ(76u, gray_pixels[2][1]);
   EXPECT_EQ(76u, gray_pixels[2][2]);
   EXPECT_EQ(255u, gray_pixels[2][3]);
   EXPECT_EQ(0u, gray_pixels[3][0]);
   EXPECT_EQ(0u, gray_pixels[3][1]);
   EXPECT_EQ(0u, gray_pixels[3][2]);
   EXPECT_EQ(255u, gray_pixels[3][3]);
   EXPECT_EQ(255u, gray_pixels[4][0]);
   EXPECT_EQ(255u, gray_pixels[4][1]);
   EXPECT_EQ(255u, gray_pixels[4][2]);
   EXPECT_EQ(255u, gray_pixels[4][3]);
   EXPECT_EQ(96u, gray_pixels[5][0]);
   EXPECT_EQ(96u, gray_pixels[5][1]);
   EXPECT_EQ(96u, gray_pixels[5][2]);
   EXPECT_EQ(224u, gray_pixels[5][3]);
   for (int i = 0; i < 1280; ++i) {
     orig_pixels[i][0] = i;
     orig_pixels[i][1] = i / 2;
     orig_pixels[i][2] = i / 3;
     orig_pixels[i][3] = i;
   }
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     ARGBGrayTo(&orig_pixels[0][0], 0, &gray_pixels[0][0], 0, 1280, 1);
   }
 }
 TEST_F(libyuvTest, TestARGBSepia) {
   SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
   memset(orig_pixels, 0, sizeof(orig_pixels));
   // Test blue
   orig_pixels[0][0] = 255u;
   orig_pixels[0][1] = 0u;
   orig_pixels[0][2] = 0u;
   orig_pixels[0][3] = 128u;
   // Test green
   orig_pixels[1][0] = 0u;
   orig_pixels[1][1] = 255u;
   orig_pixels[1][2] = 0u;
   orig_pixels[1][3] = 0u;
   // Test red
   orig_pixels[2][0] = 0u;
   orig_pixels[2][1] = 0u;
   orig_pixels[2][2] = 255u;
   orig_pixels[2][3] = 255u;
   // Test black
   orig_pixels[3][0] = 0u;
   orig_pixels[3][1] = 0u;
   orig_pixels[3][2] = 0u;
   orig_pixels[3][3] = 255u;
   // Test white
   orig_pixels[4][0] = 255u;
   orig_pixels[4][1] = 255u;
   orig_pixels[4][2] = 255u;
   orig_pixels[4][3] = 255u;
   // Test color
   orig_pixels[5][0] = 16u;
   orig_pixels[5][1] = 64u;
   orig_pixels[5][2] = 192u;
   orig_pixels[5][3] = 224u;
   // Do 16 to test asm version.
   ARGBSepia(&orig_pixels[0][0], 0, 0, 0, 16, 1);
   EXPECT_EQ(33u, orig_pixels[0][0]);
   EXPECT_EQ(43u, orig_pixels[0][1]);
   EXPECT_EQ(47u, orig_pixels[0][2]);
   EXPECT_EQ(128u, orig_pixels[0][3]);
   EXPECT_EQ(135u, orig_pixels[1][0]);
   EXPECT_EQ(175u, orig_pixels[1][1]);
   EXPECT_EQ(195u, orig_pixels[1][2]);
   EXPECT_EQ(0u, orig_pixels[1][3]);
   EXPECT_EQ(69u, orig_pixels[2][0]);
   EXPECT_EQ(89u, orig_pixels[2][1]);
   EXPECT_EQ(99u, orig_pixels[2][2]);
   EXPECT_EQ(255u, orig_pixels[2][3]);
   EXPECT_EQ(0u, orig_pixels[3][0]);
   EXPECT_EQ(0u, orig_pixels[3][1]);
   EXPECT_EQ(0u, orig_pixels[3][2]);
   EXPECT_EQ(255u, orig_pixels[3][3]);
   EXPECT_EQ(239u, orig_pixels[4][0]);
   EXPECT_EQ(255u, orig_pixels[4][1]);
   EXPECT_EQ(255u, orig_pixels[4][2]);
   EXPECT_EQ(255u, orig_pixels[4][3]);
   EXPECT_EQ(88u, orig_pixels[5][0]);
   EXPECT_EQ(114u, orig_pixels[5][1]);
   EXPECT_EQ(127u, orig_pixels[5][2]);
   EXPECT_EQ(224u, orig_pixels[5][3]);
   for (int i = 0; i < 1280; ++i) {
     orig_pixels[i][0] = i;
     orig_pixels[i][1] = i / 2;
     orig_pixels[i][2] = i / 3;
     orig_pixels[i][3] = i;
   }
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     ARGBSepia(&orig_pixels[0][0], 0, 0, 0, 1280, 1);
   }
 }
 TEST_F(libyuvTest, TestARGBColorMatrix) {
   SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
   SIMD_ALIGNED(uint8 dst_pixels_opt[1280][4]);
   SIMD_ALIGNED(uint8 dst_pixels_c[1280][4]);
   // Matrix for Sepia.
   SIMD_ALIGNED(static const int8 kRGBToSepia[]) = {
 / 2, 68 / 2, 35 / 2, 0,
 / 2, 88 / 2, 45 / 2, 0,
 / 2, 98 / 2, 50 / 2, 0,
 , 0, 0, 64,  // Copy alpha.
   };
   memset(orig_pixels, 0, sizeof(orig_pixels));
   // Test blue
   orig_pixels[0][0] = 255u;
   orig_pixels[0][1] = 0u;
   orig_pixels[0][2] = 0u;
   orig_pixels[0][3] = 128u;
   // Test green
   orig_pixels[1][0] = 0u;
   orig_pixels[1][1] = 255u;
   orig_pixels[1][2] = 0u;
   orig_pixels[1][3] = 0u;
   // Test red
   orig_pixels[2][0] = 0u;
   orig_pixels[2][1] = 0u;
   orig_pixels[2][2] = 255u;
   orig_pixels[2][3] = 255u;
   // Test color
   orig_pixels[3][0] = 16u;
   orig_pixels[3][1] = 64u;
   orig_pixels[3][2] = 192u;
   orig_pixels[3][3] = 224u;
   // Do 16 to test asm version.
   ARGBColorMatrix(&orig_pixels[0][0], 0, &dst_pixels_opt[0][0], 0,
                   &kRGBToSepia[0], 16, 1);
   EXPECT_EQ(31u, dst_pixels_opt[0][0]);
   EXPECT_EQ(43u, dst_pixels_opt[0][1]);
   EXPECT_EQ(47u, dst_pixels_opt[0][2]);
   EXPECT_EQ(128u, dst_pixels_opt[0][3]);
   EXPECT_EQ(135u, dst_pixels_opt[1][0]);
   EXPECT_EQ(175u, dst_pixels_opt[1][1]);
   EXPECT_EQ(195u, dst_pixels_opt[1][2]);
   EXPECT_EQ(0u, dst_pixels_opt[1][3]);
   EXPECT_EQ(67u, dst_pixels_opt[2][0]);
   EXPECT_EQ(87u, dst_pixels_opt[2][1]);
   EXPECT_EQ(99u, dst_pixels_opt[2][2]);
   EXPECT_EQ(255u, dst_pixels_opt[2][3]);
   EXPECT_EQ(87u, dst_pixels_opt[3][0]);
   EXPECT_EQ(112u, dst_pixels_opt[3][1]);
   EXPECT_EQ(127u, dst_pixels_opt[3][2]);
   EXPECT_EQ(224u, dst_pixels_opt[3][3]);
   for (int i = 0; i < 1280; ++i) {
     orig_pixels[i][0] = i;
     orig_pixels[i][1] = i / 2;
     orig_pixels[i][2] = i / 3;
     orig_pixels[i][3] = i;
   }
   MaskCpuFlags(0);
   ARGBColorMatrix(&orig_pixels[0][0], 0, &dst_pixels_c[0][0], 0,
                   &kRGBToSepia[0], 1280, 1);
   MaskCpuFlags(-1);
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     ARGBColorMatrix(&orig_pixels[0][0], 0, &dst_pixels_opt[0][0], 0,
                     &kRGBToSepia[0], 1280, 1);
   }
   for (int i = 0; i < 1280; ++i) {
     EXPECT_EQ(dst_pixels_c[i][0], dst_pixels_opt[i][0]);
     EXPECT_EQ(dst_pixels_c[i][1], dst_pixels_opt[i][1]);
     EXPECT_EQ(dst_pixels_c[i][2], dst_pixels_opt[i][2]);
     EXPECT_EQ(dst_pixels_c[i][3], dst_pixels_opt[i][3]);
   }
 }
 TEST_F(libyuvTest, TestRGBColorMatrix) {
   SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
   // Matrix for Sepia.
   SIMD_ALIGNED(static const int8 kRGBToSepia[]) = {
 , 68, 35, 0,
 , 88, 45, 0,
 , 98, 50, 0,
 , 0, 0, 0,  // Unused but makes matrix 16 bytes.
   };
   memset(orig_pixels, 0, sizeof(orig_pixels));
   // Test blue
   orig_pixels[0][0] = 255u;
   orig_pixels[0][1] = 0u;
   orig_pixels[0][2] = 0u;
   orig_pixels[0][3] = 128u;
   // Test green
   orig_pixels[1][0] = 0u;
   orig_pixels[1][1] = 255u;
   orig_pixels[1][2] = 0u;
   orig_pixels[1][3] = 0u;
   // Test red
   orig_pixels[2][0] = 0u;
   orig_pixels[2][1] = 0u;
   orig_pixels[2][2] = 255u;
   orig_pixels[2][3] = 255u;
   // Test color
   orig_pixels[3][0] = 16u;
   orig_pixels[3][1] = 64u;
   orig_pixels[3][2] = 192u;
   orig_pixels[3][3] = 224u;
   // Do 16 to test asm version.
   RGBColorMatrix(&orig_pixels[0][0], 0, &kRGBToSepia[0], 0, 0, 16, 1);
   EXPECT_EQ(31u, orig_pixels[0][0]);
   EXPECT_EQ(43u, orig_pixels[0][1]);
   EXPECT_EQ(47u, orig_pixels[0][2]);
   EXPECT_EQ(128u, orig_pixels[0][3]);
   EXPECT_EQ(135u, orig_pixels[1][0]);
   EXPECT_EQ(175u, orig_pixels[1][1]);
   EXPECT_EQ(195u, orig_pixels[1][2]);
   EXPECT_EQ(0u, orig_pixels[1][3]);
   EXPECT_EQ(67u, orig_pixels[2][0]);
   EXPECT_EQ(87u, orig_pixels[2][1]);
   EXPECT_EQ(99u, orig_pixels[2][2]);
   EXPECT_EQ(255u, orig_pixels[2][3]);
   EXPECT_EQ(87u, orig_pixels[3][0]);
   EXPECT_EQ(112u, orig_pixels[3][1]);
   EXPECT_EQ(127u, orig_pixels[3][2]);
   EXPECT_EQ(224u, orig_pixels[3][3]);
   for (int i = 0; i < 1280; ++i) {
     orig_pixels[i][0] = i;
     orig_pixels[i][1] = i / 2;
     orig_pixels[i][2] = i / 3;
     orig_pixels[i][3] = i;
   }
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     RGBColorMatrix(&orig_pixels[0][0], 0, &kRGBToSepia[0], 0, 0, 1280, 1);
   }
 }
 TEST_F(libyuvTest, TestARGBColorTable) {
   SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
   memset(orig_pixels, 0, sizeof(orig_pixels));
   // Matrix for Sepia.
   static const uint8 kARGBTable[256 * 4] = {
 u, 2u, 3u, 4u,
 u, 6u, 7u, 8u,
 u, 10u, 11u, 12u,
 u, 14u, 15u, 16u,
   };
   orig_pixels[0][0] = 0u;
   orig_pixels[0][1] = 0u;
   orig_pixels[0][2] = 0u;
   orig_pixels[0][3] = 0u;
   orig_pixels[1][0] = 1u;
   orig_pixels[1][1] = 1u;
   orig_pixels[1][2] = 1u;
   orig_pixels[1][3] = 1u;
   orig_pixels[2][0] = 2u;
   orig_pixels[2][1] = 2u;
   orig_pixels[2][2] = 2u;
   orig_pixels[2][3] = 2u;
   orig_pixels[3][0] = 0u;
   orig_pixels[3][1] = 1u;
   orig_pixels[3][2] = 2u;
   orig_pixels[3][3] = 3u;
   // Do 16 to test asm version.
   ARGBColorTable(&orig_pixels[0][0], 0, &kARGBTable[0], 0, 0, 16, 1);
   EXPECT_EQ(1u, orig_pixels[0][0]);
   EXPECT_EQ(2u, orig_pixels[0][1]);
   EXPECT_EQ(3u, orig_pixels[0][2]);
   EXPECT_EQ(4u, orig_pixels[0][3]);
   EXPECT_EQ(5u, orig_pixels[1][0]);
   EXPECT_EQ(6u, orig_pixels[1][1]);
   EXPECT_EQ(7u, orig_pixels[1][2]);
   EXPECT_EQ(8u, orig_pixels[1][3]);
   EXPECT_EQ(9u, orig_pixels[2][0]);
   EXPECT_EQ(10u, orig_pixels[2][1]);
   EXPECT_EQ(11u, orig_pixels[2][2]);
   EXPECT_EQ(12u, orig_pixels[2][3]);
   EXPECT_EQ(1u, orig_pixels[3][0]);
   EXPECT_EQ(6u, orig_pixels[3][1]);
   EXPECT_EQ(11u, orig_pixels[3][2]);
   EXPECT_EQ(16u, orig_pixels[3][3]);
   for (int i = 0; i < 1280; ++i) {
     orig_pixels[i][0] = i;
     orig_pixels[i][1] = i / 2;
     orig_pixels[i][2] = i / 3;
     orig_pixels[i][3] = i;
   }
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     ARGBColorTable(&orig_pixels[0][0], 0, &kARGBTable[0], 0, 0, 1280, 1);
   }
 }
 // Same as TestARGBColorTable except alpha does not change.
 TEST_F(libyuvTest, TestRGBColorTable) {
   SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
   memset(orig_pixels, 0, sizeof(orig_pixels));
   // Matrix for Sepia.
   static const uint8 kARGBTable[256 * 4] = {
 u, 2u, 3u, 4u,
 u, 6u, 7u, 8u,
 u, 10u, 11u, 12u,
 u, 14u, 15u, 16u,
   };
   orig_pixels[0][0] = 0u;
   orig_pixels[0][1] = 0u;
   orig_pixels[0][2] = 0u;
   orig_pixels[0][3] = 0u;
   orig_pixels[1][0] = 1u;
   orig_pixels[1][1] = 1u;
   orig_pixels[1][2] = 1u;
   orig_pixels[1][3] = 1u;
   orig_pixels[2][0] = 2u;
   orig_pixels[2][1] = 2u;
   orig_pixels[2][2] = 2u;
   orig_pixels[2][3] = 2u;
   orig_pixels[3][0] = 0u;
   orig_pixels[3][1] = 1u;
   orig_pixels[3][2] = 2u;
   orig_pixels[3][3] = 3u;
   // Do 16 to test asm version.
   RGBColorTable(&orig_pixels[0][0], 0, &kARGBTable[0], 0, 0, 16, 1);
   EXPECT_EQ(1u, orig_pixels[0][0]);
   EXPECT_EQ(2u, orig_pixels[0][1]);
   EXPECT_EQ(3u, orig_pixels[0][2]);
   EXPECT_EQ(0u, orig_pixels[0][3]);  // Alpha unchanged.
   EXPECT_EQ(5u, orig_pixels[1][0]);
   EXPECT_EQ(6u, orig_pixels[1][1]);
   EXPECT_EQ(7u, orig_pixels[1][2]);
   EXPECT_EQ(1u, orig_pixels[1][3]);  // Alpha unchanged.
   EXPECT_EQ(9u, orig_pixels[2][0]);
   EXPECT_EQ(10u, orig_pixels[2][1]);
   EXPECT_EQ(11u, orig_pixels[2][2]);
   EXPECT_EQ(2u, orig_pixels[2][3]);  // Alpha unchanged.
   EXPECT_EQ(1u, orig_pixels[3][0]);
   EXPECT_EQ(6u, orig_pixels[3][1]);
   EXPECT_EQ(11u, orig_pixels[3][2]);
   EXPECT_EQ(3u, orig_pixels[3][3]);  // Alpha unchanged.
   for (int i = 0; i < 1280; ++i) {
     orig_pixels[i][0] = i;
     orig_pixels[i][1] = i / 2;
     orig_pixels[i][2] = i / 3;
     orig_pixels[i][3] = i;
   }
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     RGBColorTable(&orig_pixels[0][0], 0, &kARGBTable[0], 0, 0, 1280, 1);
   }
 }
 TEST_F(libyuvTest, TestARGBQuantize) {
   SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
   for (int i = 0; i < 1280; ++i) {
     orig_pixels[i][0] = i;
     orig_pixels[i][1] = i / 2;
     orig_pixels[i][2] = i / 3;
     orig_pixels[i][3] = i;
   }
   ARGBQuantize(&orig_pixels[0][0], 0,
                (65536 + (8 / 2)) / 8, 8, 8 / 2, 0, 0, 1280, 1);
   for (int i = 0; i < 1280; ++i) {
     EXPECT_EQ((i / 8 * 8 + 8 / 2) & 255, orig_pixels[i][0]);
     EXPECT_EQ((i / 2 / 8 * 8 + 8 / 2) & 255, orig_pixels[i][1]);
     EXPECT_EQ((i / 3 / 8 * 8 + 8 / 2) & 255, orig_pixels[i][2]);
     EXPECT_EQ(i & 255, orig_pixels[i][3]);
   }
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     ARGBQuantize(&orig_pixels[0][0], 0,
                  (65536 + (8 / 2)) / 8, 8, 8 / 2, 0, 0, 1280, 1);
   }
 }
 TEST_F(libyuvTest, TestARGBMirror) {
   SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
   SIMD_ALIGNED(uint8 dst_pixels[1280][4]);
   for (int i = 0; i < 1280; ++i) {
     orig_pixels[i][0] = i;
     orig_pixels[i][1] = i / 2;
     orig_pixels[i][2] = i / 3;
     orig_pixels[i][3] = i / 4;
   }
   ARGBMirror(&orig_pixels[0][0], 0, &dst_pixels[0][0], 0, 1280, 1);
   for (int i = 0; i < 1280; ++i) {
     EXPECT_EQ(i & 255, dst_pixels[1280 - 1 - i][0]);
     EXPECT_EQ((i / 2) & 255, dst_pixels[1280 - 1 - i][1]);
     EXPECT_EQ((i / 3) & 255, dst_pixels[1280 - 1 - i][2]);
     EXPECT_EQ((i / 4) & 255, dst_pixels[1280 - 1 - i][3]);
   }
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     ARGBMirror(&orig_pixels[0][0], 0, &dst_pixels[0][0], 0, 1280, 1);
   }
 }
 TEST_F(libyuvTest, TestShade) {
   SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
   SIMD_ALIGNED(uint8 shade_pixels[1280][4]);
   memset(orig_pixels, 0, sizeof(orig_pixels));
   orig_pixels[0][0] = 10u;
   orig_pixels[0][1] = 20u;
   orig_pixels[0][2] = 40u;
   orig_pixels[0][3] = 80u;
   orig_pixels[1][0] = 0u;
   orig_pixels[1][1] = 0u;
   orig_pixels[1][2] = 0u;
   orig_pixels[1][3] = 255u;
   orig_pixels[2][0] = 0u;
   orig_pixels[2][1] = 0u;
   orig_pixels[2][2] = 0u;
   orig_pixels[2][3] = 0u;
   orig_pixels[3][0] = 0u;
   orig_pixels[3][1] = 0u;
   orig_pixels[3][2] = 0u;
   orig_pixels[3][3] = 0u;
   // Do 8 pixels to allow opt version to be used.
   ARGBShade(&orig_pixels[0][0], 0, &shade_pixels[0][0], 0, 8, 1, 0x80ffffff);
   EXPECT_EQ(10u, shade_pixels[0][0]);
   EXPECT_EQ(20u, shade_pixels[0][1]);
   EXPECT_EQ(40u, shade_pixels[0][2]);
   EXPECT_EQ(40u, shade_pixels[0][3]);
   EXPECT_EQ(0u, shade_pixels[1][0]);
   EXPECT_EQ(0u, shade_pixels[1][1]);
   EXPECT_EQ(0u, shade_pixels[1][2]);
   EXPECT_EQ(128u, shade_pixels[1][3]);
   EXPECT_EQ(0u, shade_pixels[2][0]);
   EXPECT_EQ(0u, shade_pixels[2][1]);
   EXPECT_EQ(0u, shade_pixels[2][2]);
   EXPECT_EQ(0u, shade_pixels[2][3]);
   EXPECT_EQ(0u, shade_pixels[3][0]);
   EXPECT_EQ(0u, shade_pixels[3][1]);
   EXPECT_EQ(0u, shade_pixels[3][2]);
   EXPECT_EQ(0u, shade_pixels[3][3]);
   ARGBShade(&orig_pixels[0][0], 0, &shade_pixels[0][0], 0, 8, 1, 0x80808080);
   EXPECT_EQ(5u, shade_pixels[0][0]);
   EXPECT_EQ(10u, shade_pixels[0][1]);
   EXPECT_EQ(20u, shade_pixels[0][2]);
   EXPECT_EQ(40u, shade_pixels[0][3]);
   ARGBShade(&orig_pixels[0][0], 0, &shade_pixels[0][0], 0, 8, 1, 0x10204080);
   EXPECT_EQ(5u, shade_pixels[0][0]);
   EXPECT_EQ(5u, shade_pixels[0][1]);
   EXPECT_EQ(5u, shade_pixels[0][2]);
   EXPECT_EQ(5u, shade_pixels[0][3]);
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     ARGBShade(&orig_pixels[0][0], 0, &shade_pixels[0][0], 0, 1280, 1,
 x80808080);
   }
 }
 TEST_F(libyuvTest, TestInterpolate) {
   SIMD_ALIGNED(uint8 orig_pixels_0[1280][4]);
   SIMD_ALIGNED(uint8 orig_pixels_1[1280][4]);
   SIMD_ALIGNED(uint8 interpolate_pixels[1280][4]);
   memset(orig_pixels_0, 0, sizeof(orig_pixels_0));
   memset(orig_pixels_1, 0, sizeof(orig_pixels_1));
   orig_pixels_0[0][0] = 16u;
   orig_pixels_0[0][1] = 32u;
   orig_pixels_0[0][2] = 64u;
   orig_pixels_0[0][3] = 128u;
   orig_pixels_0[1][0] = 0u;
   orig_pixels_0[1][1] = 0u;
   orig_pixels_0[1][2] = 0u;
   orig_pixels_0[1][3] = 255u;
   orig_pixels_0[2][0] = 0u;
   orig_pixels_0[2][1] = 0u;
   orig_pixels_0[2][2] = 0u;
   orig_pixels_0[2][3] = 0u;
   orig_pixels_0[3][0] = 0u;
   orig_pixels_0[3][1] = 0u;
   orig_pixels_0[3][2] = 0u;
   orig_pixels_0[3][3] = 0u;
   orig_pixels_1[0][0] = 0u;
   orig_pixels_1[0][1] = 0u;
   orig_pixels_1[0][2] = 0u;
   orig_pixels_1[0][3] = 0u;
   orig_pixels_1[1][0] = 0u;
   orig_pixels_1[1][1] = 0u;
   orig_pixels_1[1][2] = 0u;
   orig_pixels_1[1][3] = 0u;
   orig_pixels_1[2][0] = 0u;
   orig_pixels_1[2][1] = 0u;
   orig_pixels_1[2][2] = 0u;
   orig_pixels_1[2][3] = 0u;
   orig_pixels_1[3][0] = 255u;
   orig_pixels_1[3][1] = 255u;
   orig_pixels_1[3][2] = 255u;
   orig_pixels_1[3][3] = 255u;
   ARGBInterpolate(&orig_pixels_0[0][0], 0, &orig_pixels_1[0][0], 0,
                   &interpolate_pixels[0][0], 0, 4, 1, 128);
   EXPECT_EQ(8u, interpolate_pixels[0][0]);
   EXPECT_EQ(16u, interpolate_pixels[0][1]);
   EXPECT_EQ(32u, interpolate_pixels[0][2]);
   EXPECT_EQ(64u, interpolate_pixels[0][3]);
   EXPECT_EQ(0u, interpolate_pixels[1][0]);
   EXPECT_EQ(0u, interpolate_pixels[1][1]);
   EXPECT_EQ(0u, interpolate_pixels[1][2]);
   EXPECT_NEAR(128u, interpolate_pixels[1][3], 1);  // C = 127, SSE = 128.
   EXPECT_EQ(0u, interpolate_pixels[2][0]);
   EXPECT_EQ(0u, interpolate_pixels[2][1]);
   EXPECT_EQ(0u, interpolate_pixels[2][2]);
   EXPECT_EQ(0u, interpolate_pixels[2][3]);
   EXPECT_NEAR(128u, interpolate_pixels[3][0], 1);
   EXPECT_NEAR(128u, interpolate_pixels[3][1], 1);
   EXPECT_NEAR(128u, interpolate_pixels[3][2], 1);
   EXPECT_NEAR(128u, interpolate_pixels[3][3], 1);
   ARGBInterpolate(&orig_pixels_0[0][0], 0, &orig_pixels_1[0][0], 0,
                   &interpolate_pixels[0][0], 0, 4, 1, 0);
   EXPECT_EQ(16u, interpolate_pixels[0][0]);
   EXPECT_EQ(32u, interpolate_pixels[0][1]);
   EXPECT_EQ(64u, interpolate_pixels[0][2]);
   EXPECT_EQ(128u, interpolate_pixels[0][3]);
   ARGBInterpolate(&orig_pixels_0[0][0], 0, &orig_pixels_1[0][0], 0,
                   &interpolate_pixels[0][0], 0, 4, 1, 192);
   EXPECT_EQ(4u, interpolate_pixels[0][0]);
   EXPECT_EQ(8u, interpolate_pixels[0][1]);
   EXPECT_EQ(16u, interpolate_pixels[0][2]);
   EXPECT_EQ(32u, interpolate_pixels[0][3]);
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     ARGBInterpolate(&orig_pixels_0[0][0], 0, &orig_pixels_1[0][0], 0,
                     &interpolate_pixels[0][0], 0, 1280, 1, 128);
   }
 }
 #define TESTTERP(FMT_A, BPP_A, STRIDE_A,                                       \
                  FMT_B, BPP_B, STRIDE_B,                                       \
                  W1280, TERP, DIFF, N, NEG, OFF)                               \
 TEST_F(libyuvTest, ARGBInterpolate##TERP##N) {                                 \
   const int kWidth = ((W1280) > 0) ? (W1280) : 1;                              \
   const int kHeight = benchmark_height_;                                       \
   const int kStrideA = (kWidth * BPP_A + STRIDE_A - 1) / STRIDE_A * STRIDE_A;  \
   const int kStrideB = (kWidth * BPP_B + STRIDE_B - 1) / STRIDE_B * STRIDE_B;  \
   align_buffer_64(src_argb_a, kStrideA * kHeight + OFF);                       \
   align_buffer_64(src_argb_b, kStrideA * kHeight + OFF);                       \
   align_buffer_64(dst_argb_c, kStrideB * kHeight);                             \
   align_buffer_64(dst_argb_opt, kStrideB * kHeight);                           \
   srandom(time(NULL));                                                         \
   for (int i = 0; i < kStrideA * kHeight; ++i) {                               \
     src_argb_a[i + OFF] = (random() & 0xff);                                   \
     src_argb_b[i + OFF] = (random() & 0xff);                                   \
   }                                                                            \
   MaskCpuFlags(0);                                                             \
   ARGBInterpolate(src_argb_a + OFF, kStrideA,                                  \
                   src_argb_b + OFF, kStrideA,                                  \
                   dst_argb_c, kStrideB,                                        \
                   kWidth, NEG kHeight, TERP);                                  \
   MaskCpuFlags(-1);                                                            \
   for (int i = 0; i < benchmark_iterations_; ++i) {                            \
     ARGBInterpolate(src_argb_a + OFF, kStrideA,                                \
                     src_argb_b + OFF, kStrideA,                                \
                     dst_argb_opt, kStrideB,                                    \
                     kWidth, NEG kHeight, TERP);                                \
   }                                                                            \
   int max_diff = 0;                                                            \
   for (int i = 0; i < kStrideB * kHeight; ++i) {                               \
     int abs_diff =                                                             \
         abs(static_cast<int>(dst_argb_c[i]) -                                  \
             static_cast<int>(dst_argb_opt[i]));                                \
     if (abs_diff > max_diff) {                                                 \
       max_diff = abs_diff;                                                     \
     }                                                                          \
   }                                                                            \
   EXPECT_LE(max_diff, DIFF);                                                   \
   free_aligned_buffer_64(src_argb_a);                                          \
   free_aligned_buffer_64(src_argb_b);                                          \
   free_aligned_buffer_64(dst_argb_c);                                          \
   free_aligned_buffer_64(dst_argb_opt);                                        \
 }
 #define TESTINTERPOLATE(TERP)                                                  \
     TESTTERP(ARGB, 4, 1, ARGB, 4, 1,                                           \
              benchmark_width_ - 1, TERP, 1, _Any, +, 0)                        \
     TESTTERP(ARGB, 4, 1, ARGB, 4, 1,                                           \
              benchmark_width_, TERP, 1, _Unaligned, +, 1)                      \
     TESTTERP(ARGB, 4, 1, ARGB, 4, 1,                                           \
              benchmark_width_, TERP, 1, _Invert, -, 0)                         \
     TESTTERP(ARGB, 4, 1, ARGB, 4, 1,                                           \
              benchmark_width_, TERP, 1, _Opt, +, 0)                            \
     TESTTERP(ARGB, 4, 1, ARGB, 4, 1,                                           \
              benchmark_width_ - 1, TERP, 1, _Any_Invert, -, 0)
 TESTINTERPOLATE(0)
 TESTINTERPOLATE(64)
 TESTINTERPOLATE(128)
 TESTINTERPOLATE(192)
 TESTINTERPOLATE(255)
 static int TestBlend(int width, int height, int benchmark_iterations,
                      int invert, int off) {
   if (width < 1) {
     width = 1;
   }
   const int kBpp = 4;
   const int kStride = width * kBpp;
   align_buffer_64(src_argb_a, kStride * height + off);
   align_buffer_64(src_argb_b, kStride * height + off);
   align_buffer_64(dst_argb_c, kStride * height);
   align_buffer_64(dst_argb_opt, kStride * height);
   srandom(time(NULL));
   for (int i = 0; i < kStride * height; ++i) {
     src_argb_a[i + off] = (random() & 0xff);
     src_argb_b[i + off] = (random() & 0xff);
   }
   ARGBAttenuate(src_argb_a + off, kStride, src_argb_a + off, kStride, width,
                 height);
   ARGBAttenuate(src_argb_b + off, kStride, src_argb_b + off, kStride, width,
                 height);
   memset(dst_argb_c, 255, kStride * height);
   memset(dst_argb_opt, 255, kStride * height);
   MaskCpuFlags(0);
   ARGBBlend(src_argb_a + off, kStride,
             src_argb_b + off, kStride,
             dst_argb_c, kStride,
             width, invert * height);
   MaskCpuFlags(-1);
   for (int i = 0; i < benchmark_iterations; ++i) {
     ARGBBlend(src_argb_a + off, kStride,
               src_argb_b + off, kStride,
               dst_argb_opt, kStride,
               width, invert * height);
   }
   int max_diff = 0;
   for (int i = 0; i < kStride * height; ++i) {
     int abs_diff =
         abs(static_cast<int>(dst_argb_c[i]) -
             static_cast<int>(dst_argb_opt[i]));
     if (abs_diff > max_diff) {
       max_diff = abs_diff;
     }
   }
   free_aligned_buffer_64(src_argb_a);
   free_aligned_buffer_64(src_argb_b);
   free_aligned_buffer_64(dst_argb_c);
   free_aligned_buffer_64(dst_argb_opt);
   return max_diff;
 }
 TEST_F(libyuvTest, ARGBBlend_Any) {
   int max_diff = TestBlend(benchmark_width_ - 4, benchmark_height_,
                            benchmark_iterations_, +1, 0);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, ARGBBlend_Unaligned) {
   int max_diff = TestBlend(benchmark_width_, benchmark_height_,
                            benchmark_iterations_, +1, 1);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, ARGBBlend_Invert) {
   int max_diff = TestBlend(benchmark_width_, benchmark_height_,
                            benchmark_iterations_, -1, 0);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, ARGBBlend_Opt) {
   int max_diff = TestBlend(benchmark_width_, benchmark_height_,
                            benchmark_iterations_, +1, 0);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, TestAffine) {
   SIMD_ALIGNED(uint8 orig_pixels_0[1280][4]);
   SIMD_ALIGNED(uint8 interpolate_pixels_C[1280][4]);
   for (int i = 0; i < 1280; ++i) {
     for (int j = 0; j < 4; ++j) {
       orig_pixels_0[i][j] = i;
     }
   }
   float uv_step[4] = { 0.f, 0.f, 0.75f, 0.f };
   ARGBAffineRow_C(&orig_pixels_0[0][0], 0, &interpolate_pixels_C[0][0],
                   uv_step, 1280);
   EXPECT_EQ(0u, interpolate_pixels_C[0][0]);
   EXPECT_EQ(96u, interpolate_pixels_C[128][0]);
   EXPECT_EQ(191u, interpolate_pixels_C[255][3]);
 #if defined(HAS_ARGBAFFINEROW_SSE2)
   SIMD_ALIGNED(uint8 interpolate_pixels_Opt[1280][4]);
   ARGBAffineRow_SSE2(&orig_pixels_0[0][0], 0, &interpolate_pixels_Opt[0][0],
                      uv_step, 1280);
   EXPECT_EQ(0, memcmp(interpolate_pixels_Opt, interpolate_pixels_C, 1280 * 4));
   int has_sse2 = TestCpuFlag(kCpuHasSSE2);
   if (has_sse2) {
     for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
       ARGBAffineRow_SSE2(&orig_pixels_0[0][0], 0, &interpolate_pixels_Opt[0][0],
                          uv_step, 1280);
     }
   }
 #endif
 }
 TEST_F(libyuvTest, TestSobelX) {
   SIMD_ALIGNED(uint8 orig_pixels_0[1280 + 2]);
   SIMD_ALIGNED(uint8 orig_pixels_1[1280 + 2]);
   SIMD_ALIGNED(uint8 orig_pixels_2[1280 + 2]);
   SIMD_ALIGNED(uint8 sobel_pixels_c[1280]);
   SIMD_ALIGNED(uint8 sobel_pixels_opt[1280]);
   for (int i = 0; i < 1280 + 2; ++i) {
     orig_pixels_0[i] = i;
     orig_pixels_1[i] = i * 2;
     orig_pixels_2[i] = i * 3;
   }
   SobelXRow_C(orig_pixels_0, orig_pixels_1, orig_pixels_2,
               sobel_pixels_c, 1280);
   EXPECT_EQ(16u, sobel_pixels_c[0]);
   EXPECT_EQ(16u, sobel_pixels_c[100]);
   EXPECT_EQ(255u, sobel_pixels_c[255]);
   void (*SobelXRow)(const uint8* src_y0, const uint8* src_y1,
                     const uint8* src_y2, uint8* dst_sobely, int width) =
       SobelXRow_C;
 #if defined(HAS_SOBELXROW_SSE2)
   if (TestCpuFlag(kCpuHasSSE2)) {
     SobelXRow = SobelXRow_SSE2;
   }
 #endif
 #if defined(HAS_SOBELXROW_NEON)
   if (TestCpuFlag(kCpuHasNEON)) {
     SobelXRow = SobelXRow_NEON;
   }
 #endif
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     SobelXRow(orig_pixels_0, orig_pixels_1, orig_pixels_2,
               sobel_pixels_opt, 1280);
   }
   for (int i = 0; i < 1280; ++i) {
     EXPECT_EQ(sobel_pixels_c[i], sobel_pixels_opt[i]);
   }
 }
 TEST_F(libyuvTest, TestSobelY) {
   SIMD_ALIGNED(uint8 orig_pixels_0[1280 + 2]);
   SIMD_ALIGNED(uint8 orig_pixels_1[1280 + 2]);
   SIMD_ALIGNED(uint8 sobel_pixels_c[1280]);
   SIMD_ALIGNED(uint8 sobel_pixels_opt[1280]);
   for (int i = 0; i < 1280 + 2; ++i) {
     orig_pixels_0[i] = i;
     orig_pixels_1[i] = i * 2;
   }
   SobelYRow_C(orig_pixels_0, orig_pixels_1, sobel_pixels_c, 1280);
   EXPECT_EQ(4u, sobel_pixels_c[0]);
   EXPECT_EQ(255u, sobel_pixels_c[100]);
   EXPECT_EQ(0u, sobel_pixels_c[255]);
   void (*SobelYRow)(const uint8* src_y0, const uint8* src_y1,
                     uint8* dst_sobely, int width) = SobelYRow_C;
 #if defined(HAS_SOBELYROW_SSE2)
   if (TestCpuFlag(kCpuHasSSE2)) {
     SobelYRow = SobelYRow_SSE2;
   }
 #endif
 #if defined(HAS_SOBELYROW_NEON)
   if (TestCpuFlag(kCpuHasNEON)) {
     SobelYRow = SobelYRow_NEON;
   }
 #endif
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     SobelYRow(orig_pixels_0, orig_pixels_1, sobel_pixels_opt, 1280);
   }
   for (int i = 0; i < 1280; ++i) {
     EXPECT_EQ(sobel_pixels_c[i], sobel_pixels_opt[i]);
   }
 }
 TEST_F(libyuvTest, TestSobel) {
   SIMD_ALIGNED(uint8 orig_sobelx[1280]);
   SIMD_ALIGNED(uint8 orig_sobely[1280]);
   SIMD_ALIGNED(uint8 sobel_pixels_c[1280 * 4]);
   SIMD_ALIGNED(uint8 sobel_pixels_opt[1280 * 4]);
   for (int i = 0; i < 1280; ++i) {
     orig_sobelx[i] = i;
     orig_sobely[i] = i * 2;
   }
   SobelRow_C(orig_sobelx, orig_sobely, sobel_pixels_c, 1280);
   EXPECT_EQ(0u, sobel_pixels_c[0]);
   EXPECT_EQ(3u, sobel_pixels_c[4]);
   EXPECT_EQ(3u, sobel_pixels_c[5]);
   EXPECT_EQ(3u, sobel_pixels_c[6]);
   EXPECT_EQ(255u, sobel_pixels_c[7]);
   EXPECT_EQ(6u, sobel_pixels_c[8]);
   EXPECT_EQ(6u, sobel_pixels_c[9]);
   EXPECT_EQ(6u, sobel_pixels_c[10]);
   EXPECT_EQ(255u, sobel_pixels_c[7]);
   EXPECT_EQ(255u, sobel_pixels_c[100 * 4 + 1]);
   EXPECT_EQ(255u, sobel_pixels_c[255 * 4 + 1]);
   void (*SobelRow)(const uint8* src_sobelx, const uint8* src_sobely,
                    uint8* dst_argb, int width) = SobelRow_C;
 #if defined(HAS_SOBELROW_SSE2)
   if (TestCpuFlag(kCpuHasSSE2)) {
     SobelRow = SobelRow_SSE2;
   }
 #endif
 #if defined(HAS_SOBELROW_NEON)
   if (TestCpuFlag(kCpuHasNEON)) {
     SobelRow = SobelRow_NEON;
   }
 #endif
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     SobelRow(orig_sobelx, orig_sobely, sobel_pixels_opt, 1280);
   }
   for (int i = 0; i < 1280 * 4; ++i) {
     EXPECT_EQ(sobel_pixels_c[i], sobel_pixels_opt[i]);
   }
 }
 TEST_F(libyuvTest, TestSobelToPlane) {
   SIMD_ALIGNED(uint8 orig_sobelx[1280]);
   SIMD_ALIGNED(uint8 orig_sobely[1280]);
   SIMD_ALIGNED(uint8 sobel_pixels_c[1280]);
   SIMD_ALIGNED(uint8 sobel_pixels_opt[1280]);
   for (int i = 0; i < 1280; ++i) {
     orig_sobelx[i] = i;
     orig_sobely[i] = i * 2;
   }
   SobelToPlaneRow_C(orig_sobelx, orig_sobely, sobel_pixels_c, 1280);
   EXPECT_EQ(0u, sobel_pixels_c[0]);
   EXPECT_EQ(3u, sobel_pixels_c[1]);
   EXPECT_EQ(6u, sobel_pixels_c[2]);
   EXPECT_EQ(99u, sobel_pixels_c[33]);
   EXPECT_EQ(255u, sobel_pixels_c[100]);
   void (*SobelToPlaneRow)(const uint8* src_sobelx, const uint8* src_sobely,
                           uint8* dst_y, int width) = SobelToPlaneRow_C;
 #if defined(HAS_SOBELTOPLANEROW_SSE2)
   if (TestCpuFlag(kCpuHasSSE2)) {
     SobelToPlaneRow = SobelToPlaneRow_SSE2;
   }
 #endif
 #if defined(HAS_SOBELTOPLANEROW_NEON)
   if (TestCpuFlag(kCpuHasNEON)) {
     SobelToPlaneRow = SobelToPlaneRow_NEON;
   }
 #endif
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     SobelToPlaneRow(orig_sobelx, orig_sobely, sobel_pixels_opt, 1280);
   }
   for (int i = 0; i < 1280; ++i) {
     EXPECT_EQ(sobel_pixels_c[i], sobel_pixels_opt[i]);
   }
 }
 TEST_F(libyuvTest, TestSobelXY) {
   SIMD_ALIGNED(uint8 orig_sobelx[1280]);
   SIMD_ALIGNED(uint8 orig_sobely[1280]);
   SIMD_ALIGNED(uint8 sobel_pixels_c[1280 * 4]);
   SIMD_ALIGNED(uint8 sobel_pixels_opt[1280 * 4]);
   for (int i = 0; i < 1280; ++i) {
     orig_sobelx[i] = i;
     orig_sobely[i] = i * 2;
   }
   SobelXYRow_C(orig_sobelx, orig_sobely, sobel_pixels_c, 1280);
   EXPECT_EQ(0u, sobel_pixels_c[0]);
   EXPECT_EQ(2u, sobel_pixels_c[4]);
   EXPECT_EQ(3u, sobel_pixels_c[5]);
   EXPECT_EQ(1u, sobel_pixels_c[6]);
   EXPECT_EQ(255u, sobel_pixels_c[7]);
   EXPECT_EQ(255u, sobel_pixels_c[100 * 4 + 1]);
   EXPECT_EQ(255u, sobel_pixels_c[255 * 4 + 1]);
   void (*SobelXYRow)(const uint8* src_sobelx, const uint8* src_sobely,
                        uint8* dst_argb, int width) = SobelXYRow_C;
 #if defined(HAS_SOBELXYROW_SSE2)
   if (TestCpuFlag(kCpuHasSSE2)) {
     SobelXYRow = SobelXYRow_SSE2;
   }
 #endif
 #if defined(HAS_SOBELXYROW_NEON)
   if (TestCpuFlag(kCpuHasNEON)) {
     SobelXYRow = SobelXYRow_NEON;
   }
 #endif
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     SobelXYRow(orig_sobelx, orig_sobely, sobel_pixels_opt, 1280);
   }
   for (int i = 0; i < 1280 * 4; ++i) {
     EXPECT_EQ(sobel_pixels_c[i], sobel_pixels_opt[i]);
   }
 }
 TEST_F(libyuvTest, TestCopyPlane) {
   int err = 0;
   int yw = benchmark_width_;
   int yh = benchmark_height_;
   int b = 12;
   int i, j;
   int y_plane_size = (yw + b * 2) * (yh + b * 2);
   srandom(time(NULL));
   align_buffer_64(orig_y, y_plane_size);
   align_buffer_64(dst_c, y_plane_size);
   align_buffer_64(dst_opt, y_plane_size);
   memset(orig_y, 0, y_plane_size);
   memset(dst_c, 0, y_plane_size);
   memset(dst_opt, 0, y_plane_size);
   // Fill image buffers with random data.
   for (i = b; i < (yh + b); ++i) {
     for (j = b; j < (yw + b); ++j) {
       orig_y[i * (yw + b * 2) + j] = random() & 0xff;
     }
   }
   // Fill destination buffers with random data.
   for (i = 0; i < y_plane_size; ++i) {
     uint8 random_number = random() & 0x7f;
     dst_c[i] = random_number;
     dst_opt[i] = dst_c[i];
   }
   int y_off = b * (yw + b * 2) + b;
   int y_st = yw + b * 2;
   int stride = 8;
   // Disable all optimizations.
   MaskCpuFlags(0);
   double c_time = get_time();
   for (j = 0; j < benchmark_iterations_; j++) {
     CopyPlane(orig_y + y_off, y_st, dst_c + y_off, stride, yw, yh);
   }
   c_time = (get_time() - c_time) / benchmark_iterations_;
   // Enable optimizations.
   MaskCpuFlags(-1);
   double opt_time = get_time();
   for (j = 0; j < benchmark_iterations_; j++) {
     CopyPlane(orig_y + y_off, y_st, dst_opt + y_off, stride, yw, yh);
   }
   opt_time = (get_time() - opt_time) / benchmark_iterations_;
   for (i = 0; i < y_plane_size; ++i) {
     if (dst_c[i] != dst_opt[i])
       ++err;
   }
   free_aligned_buffer_64(orig_y);
   free_aligned_buffer_64(dst_c);
   free_aligned_buffer_64(dst_opt);
   EXPECT_EQ(0, err);
 }
 static int TestMultiply(int width, int height, int benchmark_iterations,
                         int invert, int off) {
   if (width < 1) {
     width = 1;
   }
   const int kBpp = 4;
   const int kStride = (width * kBpp + 15) & ~15;
   align_buffer_64(src_argb_a, kStride * height + off);
   align_buffer_64(src_argb_b, kStride * height + off);
   align_buffer_64(dst_argb_c, kStride * height);
   align_buffer_64(dst_argb_opt, kStride * height);
   srandom(time(NULL));
   for (int i = 0; i < kStride * height; ++i) {
     src_argb_a[i + off] = (random() & 0xff);
     src_argb_b[i + off] = (random() & 0xff);
   }
   memset(dst_argb_c, 0, kStride * height);
   memset(dst_argb_opt, 0, kStride * height);
   MaskCpuFlags(0);
   ARGBMultiply(src_argb_a + off, kStride,
                src_argb_b + off, kStride,
                dst_argb_c, kStride,
                width, invert * height);
   MaskCpuFlags(-1);
   for (int i = 0; i < benchmark_iterations; ++i) {
     ARGBMultiply(src_argb_a + off, kStride,
                  src_argb_b + off, kStride,
                  dst_argb_opt, kStride,
                  width, invert * height);
   }
   int max_diff = 0;
   for (int i = 0; i < kStride * height; ++i) {
     int abs_diff =
         abs(static_cast<int>(dst_argb_c[i]) -
             static_cast<int>(dst_argb_opt[i]));
     if (abs_diff > max_diff) {
       max_diff = abs_diff;
     }
   }
   free_aligned_buffer_64(src_argb_a);
   free_aligned_buffer_64(src_argb_b);
   free_aligned_buffer_64(dst_argb_c);
   free_aligned_buffer_64(dst_argb_opt);
   return max_diff;
 }
 TEST_F(libyuvTest, ARGBMultiply_Any) {
   int max_diff = TestMultiply(benchmark_width_ - 1, benchmark_height_,
                               benchmark_iterations_, +1, 0);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, ARGBMultiply_Unaligned) {
   int max_diff = TestMultiply(benchmark_width_, benchmark_height_,
                               benchmark_iterations_, +1, 1);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, ARGBMultiply_Invert) {
   int max_diff = TestMultiply(benchmark_width_, benchmark_height_,
                               benchmark_iterations_, -1, 0);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, ARGBMultiply_Opt) {
   int max_diff = TestMultiply(benchmark_width_, benchmark_height_,
                               benchmark_iterations_, +1, 0);
   EXPECT_LE(max_diff, 1);
 }
 static int TestAdd(int width, int height, int benchmark_iterations,
                    int invert, int off) {
   if (width < 1) {
     width = 1;
   }
   const int kBpp = 4;
   const int kStride = (width * kBpp + 15) & ~15;
   align_buffer_64(src_argb_a, kStride * height + off);
   align_buffer_64(src_argb_b, kStride * height + off);
   align_buffer_64(dst_argb_c, kStride * height);
   align_buffer_64(dst_argb_opt, kStride * height);
   srandom(time(NULL));
   for (int i = 0; i < kStride * height; ++i) {
     src_argb_a[i + off] = (random() & 0xff);
     src_argb_b[i + off] = (random() & 0xff);
   }
   memset(dst_argb_c, 0, kStride * height);
   memset(dst_argb_opt, 0, kStride * height);
   MaskCpuFlags(0);
   ARGBAdd(src_argb_a + off, kStride,
           src_argb_b + off, kStride,
           dst_argb_c, kStride,
           width, invert * height);
   MaskCpuFlags(-1);
   for (int i = 0; i < benchmark_iterations; ++i) {
     ARGBAdd(src_argb_a + off, kStride,
             src_argb_b + off, kStride,
             dst_argb_opt, kStride,
             width, invert * height);
   }
   int max_diff = 0;
   for (int i = 0; i < kStride * height; ++i) {
     int abs_diff =
         abs(static_cast<int>(dst_argb_c[i]) -
             static_cast<int>(dst_argb_opt[i]));
     if (abs_diff > max_diff) {
       max_diff = abs_diff;
     }
   }
   free_aligned_buffer_64(src_argb_a);
   free_aligned_buffer_64(src_argb_b);
   free_aligned_buffer_64(dst_argb_c);
   free_aligned_buffer_64(dst_argb_opt);
   return max_diff;
 }
 TEST_F(libyuvTest, ARGBAdd_Any) {
   int max_diff = TestAdd(benchmark_width_ - 1, benchmark_height_,
                          benchmark_iterations_, +1, 0);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, ARGBAdd_Unaligned) {
   int max_diff = TestAdd(benchmark_width_, benchmark_height_,
                          benchmark_iterations_, +1, 1);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, ARGBAdd_Invert) {
   int max_diff = TestAdd(benchmark_width_, benchmark_height_,
                          benchmark_iterations_, -1, 0);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, ARGBAdd_Opt) {
   int max_diff = TestAdd(benchmark_width_, benchmark_height_,
                          benchmark_iterations_, +1, 0);
   EXPECT_LE(max_diff, 1);
 }
 static int TestSubtract(int width, int height, int benchmark_iterations,
                         int invert, int off) {
   if (width < 1) {
     width = 1;
   }
   const int kBpp = 4;
   const int kStride = (width * kBpp + 15) & ~15;
   align_buffer_64(src_argb_a, kStride * height + off);
   align_buffer_64(src_argb_b, kStride * height + off);
   align_buffer_64(dst_argb_c, kStride * height);
   align_buffer_64(dst_argb_opt, kStride * height);
   srandom(time(NULL));
   for (int i = 0; i < kStride * height; ++i) {
     src_argb_a[i + off] = (random() & 0xff);
     src_argb_b[i + off] = (random() & 0xff);
   }
   memset(dst_argb_c, 0, kStride * height);
   memset(dst_argb_opt, 0, kStride * height);
   MaskCpuFlags(0);
   ARGBSubtract(src_argb_a + off, kStride,
                src_argb_b + off, kStride,
                dst_argb_c, kStride,
                width, invert * height);
   MaskCpuFlags(-1);
   for (int i = 0; i < benchmark_iterations; ++i) {
     ARGBSubtract(src_argb_a + off, kStride,
                  src_argb_b + off, kStride,
                  dst_argb_opt, kStride,
                  width, invert * height);
   }
   int max_diff = 0;
   for (int i = 0; i < kStride * height; ++i) {
     int abs_diff =
         abs(static_cast<int>(dst_argb_c[i]) -
             static_cast<int>(dst_argb_opt[i]));
     if (abs_diff > max_diff) {
       max_diff = abs_diff;
     }
   }
   free_aligned_buffer_64(src_argb_a);
   free_aligned_buffer_64(src_argb_b);
   free_aligned_buffer_64(dst_argb_c);
   free_aligned_buffer_64(dst_argb_opt);
   return max_diff;
 }
 TEST_F(libyuvTest, ARGBSubtract_Any) {
   int max_diff = TestSubtract(benchmark_width_ - 1, benchmark_height_,
                               benchmark_iterations_, +1, 0);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, ARGBSubtract_Unaligned) {
   int max_diff = TestSubtract(benchmark_width_, benchmark_height_,
                               benchmark_iterations_, +1, 1);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, ARGBSubtract_Invert) {
   int max_diff = TestSubtract(benchmark_width_, benchmark_height_,
                               benchmark_iterations_, -1, 0);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, ARGBSubtract_Opt) {
   int max_diff = TestSubtract(benchmark_width_, benchmark_height_,
                               benchmark_iterations_, +1, 0);
   EXPECT_LE(max_diff, 1);
 }
 static int TestSobel(int width, int height, int benchmark_iterations,
                      int invert, int off) {
   if (width < 1) {
     width = 1;
   }
   const int kBpp = 4;
   const int kStride = (width * kBpp + 15) & ~15;
   align_buffer_64(src_argb_a, kStride * height + off);
   align_buffer_64(dst_argb_c, kStride * height);
   align_buffer_64(dst_argb_opt, kStride * height);
   memset(src_argb_a, 0, kStride * height + off);
   srandom(time(NULL));
   for (int i = 0; i < kStride * height; ++i) {
     src_argb_a[i + off] = (random() & 0xff);
   }
   memset(dst_argb_c, 0, kStride * height);
   memset(dst_argb_opt, 0, kStride * height);
   MaskCpuFlags(0);
   ARGBSobel(src_argb_a + off, kStride,
             dst_argb_c, kStride,
             width, invert * height);
   MaskCpuFlags(-1);
   for (int i = 0; i < benchmark_iterations; ++i) {
     ARGBSobel(src_argb_a + off, kStride,
               dst_argb_opt, kStride,
               width, invert * height);
   }
   int max_diff = 0;
   for (int i = 0; i < kStride * height; ++i) {
     int abs_diff =
         abs(static_cast<int>(dst_argb_c[i]) -
             static_cast<int>(dst_argb_opt[i]));
     if (abs_diff > max_diff) {
       max_diff = abs_diff;
     }
   }
   free_aligned_buffer_64(src_argb_a);
   free_aligned_buffer_64(dst_argb_c);
   free_aligned_buffer_64(dst_argb_opt);
   return max_diff;
 }
 TEST_F(libyuvTest, ARGBSobel_Any) {
   int max_diff = TestSobel(benchmark_width_ - 1, benchmark_height_,
                            benchmark_iterations_, +1, 0);
   EXPECT_EQ(0, max_diff);
 }
 TEST_F(libyuvTest, ARGBSobel_Unaligned) {
   int max_diff = TestSobel(benchmark_width_, benchmark_height_,
                            benchmark_iterations_, +1, 1);
   EXPECT_EQ(0, max_diff);
 }
 TEST_F(libyuvTest, ARGBSobel_Invert) {
   int max_diff = TestSobel(benchmark_width_, benchmark_height_,
                            benchmark_iterations_, -1, 0);
   EXPECT_EQ(0, max_diff);
 }
 TEST_F(libyuvTest, ARGBSobel_Opt) {
   int max_diff = TestSobel(benchmark_width_, benchmark_height_,
                            benchmark_iterations_, +1, 0);
   EXPECT_EQ(0, max_diff);
 }
 static int TestSobelToPlane(int width, int height, int benchmark_iterations,
                             int invert, int off) {
   if (width < 1) {
     width = 1;
   }
   const int kSrcBpp = 4;
   const int kDstBpp = 1;
   const int kSrcStride = (width * kSrcBpp + 15) & ~15;
   const int kDstStride = (width * kDstBpp + 15) & ~15;
   align_buffer_64(src_argb_a, kSrcStride * height + off);
   align_buffer_64(dst_argb_c, kDstStride * height);
   align_buffer_64(dst_argb_opt, kDstStride * height);
   memset(src_argb_a, 0, kSrcStride * height + off);
   srandom(time(NULL));
   for (int i = 0; i < kSrcStride * height; ++i) {
     src_argb_a[i + off] = (random() & 0xff);
   }
   memset(dst_argb_c, 0, kDstStride * height);
   memset(dst_argb_opt, 0, kDstStride * height);
   MaskCpuFlags(0);
   ARGBSobelToPlane(src_argb_a + off, kSrcStride,
                    dst_argb_c, kDstStride,
                    width, invert * height);
   MaskCpuFlags(-1);
   for (int i = 0; i < benchmark_iterations; ++i) {
     ARGBSobelToPlane(src_argb_a + off, kSrcStride,
                      dst_argb_opt, kDstStride,
                      width, invert * height);
   }
   int max_diff = 0;
   for (int i = 0; i < kDstStride * height; ++i) {
     int abs_diff =
         abs(static_cast<int>(dst_argb_c[i]) -
             static_cast<int>(dst_argb_opt[i]));
     if (abs_diff > max_diff) {
       max_diff = abs_diff;
     }
   }
   free_aligned_buffer_64(src_argb_a);
   free_aligned_buffer_64(dst_argb_c);
   free_aligned_buffer_64(dst_argb_opt);
   return max_diff;
 }
 TEST_F(libyuvTest, ARGBSobelToPlane_Any) {
   int max_diff = TestSobelToPlane(benchmark_width_ - 1, benchmark_height_,
                                   benchmark_iterations_, +1, 0);
   EXPECT_EQ(0, max_diff);
 }
 TEST_F(libyuvTest, ARGBSobelToPlane_Unaligned) {
   int max_diff = TestSobelToPlane(benchmark_width_, benchmark_height_,
                                   benchmark_iterations_, +1, 1);
   EXPECT_EQ(0, max_diff);
 }
 TEST_F(libyuvTest, ARGBSobelToPlane_Invert) {
   int max_diff = TestSobelToPlane(benchmark_width_, benchmark_height_,
                                   benchmark_iterations_, -1, 0);
   EXPECT_EQ(0, max_diff);
 }
 TEST_F(libyuvTest, ARGBSobelToPlane_Opt) {
   int max_diff = TestSobelToPlane(benchmark_width_, benchmark_height_,
                                   benchmark_iterations_, +1, 0);
   EXPECT_EQ(0, max_diff);
 }
 static int TestSobelXY(int width, int height, int benchmark_iterations,
                      int invert, int off) {
   if (width < 1) {
     width = 1;
   }
   const int kBpp = 4;
   const int kStride = (width * kBpp + 15) & ~15;
   align_buffer_64(src_argb_a, kStride * height + off);
   align_buffer_64(dst_argb_c, kStride * height);
   align_buffer_64(dst_argb_opt, kStride * height);
   memset(src_argb_a, 0, kStride * height + off);
   srandom(time(NULL));
   for (int i = 0; i < kStride * height; ++i) {
     src_argb_a[i + off] = (random() & 0xff);
   }
   memset(dst_argb_c, 0, kStride * height);
   memset(dst_argb_opt, 0, kStride * height);
   MaskCpuFlags(0);
   ARGBSobelXY(src_argb_a + off, kStride,
             dst_argb_c, kStride,
             width, invert * height);
   MaskCpuFlags(-1);
   for (int i = 0; i < benchmark_iterations; ++i) {
     ARGBSobelXY(src_argb_a + off, kStride,
               dst_argb_opt, kStride,
               width, invert * height);
   }
   int max_diff = 0;
   for (int i = 0; i < kStride * height; ++i) {
     int abs_diff =
         abs(static_cast<int>(dst_argb_c[i]) -
             static_cast<int>(dst_argb_opt[i]));
     if (abs_diff > max_diff) {
       max_diff = abs_diff;
     }
   }
   free_aligned_buffer_64(src_argb_a);
   free_aligned_buffer_64(dst_argb_c);
   free_aligned_buffer_64(dst_argb_opt);
   return max_diff;
 }
 TEST_F(libyuvTest, ARGBSobelXY_Any) {
   int max_diff = TestSobelXY(benchmark_width_ - 1, benchmark_height_,
                              benchmark_iterations_, +1, 0);
   EXPECT_EQ(0, max_diff);
 }
 TEST_F(libyuvTest, ARGBSobelXY_Unaligned) {
   int max_diff = TestSobelXY(benchmark_width_, benchmark_height_,
                              benchmark_iterations_, +1, 1);
   EXPECT_EQ(0, max_diff);
 }
 TEST_F(libyuvTest, ARGBSobelXY_Invert) {
   int max_diff = TestSobelXY(benchmark_width_, benchmark_height_,
                              benchmark_iterations_, -1, 0);
   EXPECT_EQ(0, max_diff);
 }
 TEST_F(libyuvTest, ARGBSobelXY_Opt) {
   int max_diff = TestSobelXY(benchmark_width_, benchmark_height_,
                              benchmark_iterations_, +1, 0);
   EXPECT_EQ(0, max_diff);
 }
 static int TestBlur(int width, int height, int benchmark_iterations,
                     int invert, int off, int radius) {
   if (width < 1) {
     width = 1;
   }
   const int kBpp = 4;
   const int kStride = (width * kBpp + 15) & ~15;
   align_buffer_64(src_argb_a, kStride * height + off);
   align_buffer_64(dst_cumsum, width * height * 16);
   align_buffer_64(dst_argb_c, kStride * height);
   align_buffer_64(dst_argb_opt, kStride * height);
   srandom(time(NULL));
   for (int i = 0; i < kStride * height; ++i) {
     src_argb_a[i + off] = (random() & 0xff);
   }
   memset(dst_cumsum, 0, width * height * 16);
   memset(dst_argb_c, 0, kStride * height);
   memset(dst_argb_opt, 0, kStride * height);
   MaskCpuFlags(0);
   ARGBBlur(src_argb_a + off, kStride,
            dst_argb_c, kStride,
            reinterpret_cast<int32*>(dst_cumsum), width * 4,
            width, invert * height, radius);
   MaskCpuFlags(-1);
   for (int i = 0; i < benchmark_iterations; ++i) {
     ARGBBlur(src_argb_a + off, kStride,
              dst_argb_opt, kStride,
              reinterpret_cast<int32*>(dst_cumsum), width * 4,
              width, invert * height, radius);
   }
   int max_diff = 0;
   for (int i = 0; i < kStride * height; ++i) {
     int abs_diff =
         abs(static_cast<int>(dst_argb_c[i]) -
             static_cast<int>(dst_argb_opt[i]));
     if (abs_diff > max_diff) {
       max_diff = abs_diff;
     }
   }
   free_aligned_buffer_64(src_argb_a);
   free_aligned_buffer_64(dst_cumsum);
   free_aligned_buffer_64(dst_argb_c);
   free_aligned_buffer_64(dst_argb_opt);
   return max_diff;
 }
 static const int kBlurSize = 55;
 TEST_F(libyuvTest, ARGBBlur_Any) {
   int max_diff = TestBlur(benchmark_width_ - 1, benchmark_height_,
                           benchmark_iterations_, +1, 0, kBlurSize);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, ARGBBlur_Unaligned) {
   int max_diff = TestBlur(benchmark_width_, benchmark_height_,
                           benchmark_iterations_, +1, 1, kBlurSize);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, ARGBBlur_Invert) {
   int max_diff = TestBlur(benchmark_width_, benchmark_height_,
                           benchmark_iterations_, -1, 0, kBlurSize);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, ARGBBlur_Opt) {
   int max_diff = TestBlur(benchmark_width_, benchmark_height_,
                           benchmark_iterations_, +1, 0, kBlurSize);
   EXPECT_LE(max_diff, 1);
 }
 static const int kBlurSmallSize = 5;
 TEST_F(libyuvTest, ARGBBlurSmall_Any) {
   int max_diff = TestBlur(benchmark_width_ - 1, benchmark_height_,
                           benchmark_iterations_, +1, 0, kBlurSmallSize);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, ARGBBlurSmall_Unaligned) {
   int max_diff = TestBlur(benchmark_width_, benchmark_height_,
                           benchmark_iterations_, +1, 1, kBlurSmallSize);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, ARGBBlurSmall_Invert) {
   int max_diff = TestBlur(benchmark_width_, benchmark_height_,
                           benchmark_iterations_, -1, 0, kBlurSmallSize);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, ARGBBlurSmall_Opt) {
   int max_diff = TestBlur(benchmark_width_, benchmark_height_,
                           benchmark_iterations_, +1, 0, kBlurSmallSize);
   EXPECT_LE(max_diff, 1);
 }
 TEST_F(libyuvTest, TestARGBPolynomial) {
   SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
   SIMD_ALIGNED(uint8 dst_pixels_opt[1280][4]);
   SIMD_ALIGNED(uint8 dst_pixels_c[1280][4]);
   memset(orig_pixels, 0, sizeof(orig_pixels));
   SIMD_ALIGNED(static const float kWarmifyPolynomial[16]) = {
 .94230f,  -3.03300f,    -2.92500f,  0.f,  // C0
 .584500f,  1.112000f,    1.535000f, 1.f,  // C1 x
 .001313f, -0.002503f,   -0.004496f, 0.f,  // C2 x * x
 .0f,       0.000006965f, 0.000008781f, 0.f,  // C3 x * x * x
   };
   // Test blue
   orig_pixels[0][0] = 255u;
   orig_pixels[0][1] = 0u;
   orig_pixels[0][2] = 0u;
   orig_pixels[0][3] = 128u;
   // Test green
   orig_pixels[1][0] = 0u;
   orig_pixels[1][1] = 255u;
   orig_pixels[1][2] = 0u;
   orig_pixels[1][3] = 0u;
   // Test red
   orig_pixels[2][0] = 0u;
   orig_pixels[2][1] = 0u;
   orig_pixels[2][2] = 255u;
   orig_pixels[2][3] = 255u;
   // Test white
   orig_pixels[3][0] = 255u;
   orig_pixels[3][1] = 255u;
   orig_pixels[3][2] = 255u;
   orig_pixels[3][3] = 255u;
   // Test color
   orig_pixels[4][0] = 16u;
   orig_pixels[4][1] = 64u;
   orig_pixels[4][2] = 192u;
   orig_pixels[4][3] = 224u;
   // Do 16 to test asm version.
   ARGBPolynomial(&orig_pixels[0][0], 0, &dst_pixels_opt[0][0], 0,
                  &kWarmifyPolynomial[0], 16, 1);
   EXPECT_EQ(235u, dst_pixels_opt[0][0]);
   EXPECT_EQ(0u, dst_pixels_opt[0][1]);
   EXPECT_EQ(0u, dst_pixels_opt[0][2]);
   EXPECT_EQ(128u, dst_pixels_opt[0][3]);
   EXPECT_EQ(0u, dst_pixels_opt[1][0]);
   EXPECT_EQ(233u, dst_pixels_opt[1][1]);
   EXPECT_EQ(0u, dst_pixels_opt[1][2]);
   EXPECT_EQ(0u, dst_pixels_opt[1][3]);
   EXPECT_EQ(0u, dst_pixels_opt[2][0]);
   EXPECT_EQ(0u, dst_pixels_opt[2][1]);
   EXPECT_EQ(241u, dst_pixels_opt[2][2]);
   EXPECT_EQ(255u, dst_pixels_opt[2][3]);
   EXPECT_EQ(235u, dst_pixels_opt[3][0]);
   EXPECT_EQ(233u, dst_pixels_opt[3][1]);
   EXPECT_EQ(241u, dst_pixels_opt[3][2]);
   EXPECT_EQ(255u, dst_pixels_opt[3][3]);
   EXPECT_EQ(10u, dst_pixels_opt[4][0]);
   EXPECT_EQ(59u, dst_pixels_opt[4][1]);
   EXPECT_EQ(188u, dst_pixels_opt[4][2]);
   EXPECT_EQ(224u, dst_pixels_opt[4][3]);
   for (int i = 0; i < 1280; ++i) {
     orig_pixels[i][0] = i;
     orig_pixels[i][1] = i / 2;
     orig_pixels[i][2] = i / 3;
     orig_pixels[i][3] = i;
   }
   MaskCpuFlags(0);
   ARGBPolynomial(&orig_pixels[0][0], 0, &dst_pixels_c[0][0], 0,
                  &kWarmifyPolynomial[0], 1280, 1);
   MaskCpuFlags(-1);
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     ARGBPolynomial(&orig_pixels[0][0], 0, &dst_pixels_opt[0][0], 0,
                    &kWarmifyPolynomial[0], 1280, 1);
   }
   for (int i = 0; i < 1280; ++i) {
     EXPECT_EQ(dst_pixels_c[i][0], dst_pixels_opt[i][0]);
     EXPECT_EQ(dst_pixels_c[i][1], dst_pixels_opt[i][1]);
     EXPECT_EQ(dst_pixels_c[i][2], dst_pixels_opt[i][2]);
     EXPECT_EQ(dst_pixels_c[i][3], dst_pixels_opt[i][3]);
   }
 }
 TEST_F(libyuvTest, TestARGBLumaColorTable) {
   SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
   SIMD_ALIGNED(uint8 dst_pixels_opt[1280][4]);
   SIMD_ALIGNED(uint8 dst_pixels_c[1280][4]);
   memset(orig_pixels, 0, sizeof(orig_pixels));
   align_buffer_64(lumacolortable, 32768);
   int v = 0;
   for (int i = 0; i < 32768; ++i) {
     lumacolortable[i] = v;
     v += 3;
   }
   // Test blue
   orig_pixels[0][0] = 255u;
   orig_pixels[0][1] = 0u;
   orig_pixels[0][2] = 0u;
   orig_pixels[0][3] = 128u;
   // Test green
   orig_pixels[1][0] = 0u;
   orig_pixels[1][1] = 255u;
   orig_pixels[1][2] = 0u;
   orig_pixels[1][3] = 0u;
   // Test red
   orig_pixels[2][0] = 0u;
   orig_pixels[2][1] = 0u;
   orig_pixels[2][2] = 255u;
   orig_pixels[2][3] = 255u;
   // Test color
   orig_pixels[3][0] = 16u;
   orig_pixels[3][1] = 64u;
   orig_pixels[3][2] = 192u;
   orig_pixels[3][3] = 224u;
   // Do 16 to test asm version.
   ARGBLumaColorTable(&orig_pixels[0][0], 0, &dst_pixels_opt[0][0], 0,
                      &lumacolortable[0], 16, 1);
   EXPECT_EQ(253u, dst_pixels_opt[0][0]);
   EXPECT_EQ(0u, dst_pixels_opt[0][1]);
   EXPECT_EQ(0u, dst_pixels_opt[0][2]);
   EXPECT_EQ(128u, dst_pixels_opt[0][3]);
   EXPECT_EQ(0u, dst_pixels_opt[1][0]);
   EXPECT_EQ(253u, dst_pixels_opt[1][1]);
   EXPECT_EQ(0u, dst_pixels_opt[1][2]);
   EXPECT_EQ(0u, dst_pixels_opt[1][3]);
   EXPECT_EQ(0u, dst_pixels_opt[2][0]);
   EXPECT_EQ(0u, dst_pixels_opt[2][1]);
   EXPECT_EQ(253u, dst_pixels_opt[2][2]);
   EXPECT_EQ(255u, dst_pixels_opt[2][3]);
   EXPECT_EQ(48u, dst_pixels_opt[3][0]);
   EXPECT_EQ(192u, dst_pixels_opt[3][1]);
   EXPECT_EQ(64u, dst_pixels_opt[3][2]);
   EXPECT_EQ(224u, dst_pixels_opt[3][3]);
   for (int i = 0; i < 1280; ++i) {
     orig_pixels[i][0] = i;
     orig_pixels[i][1] = i / 2;
     orig_pixels[i][2] = i / 3;
     orig_pixels[i][3] = i;
   }
   MaskCpuFlags(0);
   ARGBLumaColorTable(&orig_pixels[0][0], 0, &dst_pixels_c[0][0], 0,
                      lumacolortable, 1280, 1);
   MaskCpuFlags(-1);
   for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
     ARGBLumaColorTable(&orig_pixels[0][0], 0, &dst_pixels_opt[0][0], 0,
                        lumacolortable, 1280, 1);
   }
   for (int i = 0; i < 1280; ++i) {
     EXPECT_EQ(dst_pixels_c[i][0], dst_pixels_opt[i][0]);
     EXPECT_EQ(dst_pixels_c[i][1], dst_pixels_opt[i][1]);
     EXPECT_EQ(dst_pixels_c[i][2], dst_pixels_opt[i][2]);
     EXPECT_EQ(dst_pixels_c[i][3], dst_pixels_opt[i][3]);
   }
   free_aligned_buffer_64(lumacolortable);
 }
 TEST_F(libyuvTest, TestARGBCopyAlpha) {
   const int kSize = benchmark_width_ * benchmark_height_ * 4;
   align_buffer_64(orig_pixels, kSize);
   align_buffer_64(dst_pixels_opt, kSize);
   align_buffer_64(dst_pixels_c, kSize);
   MemRandomize(orig_pixels, kSize);
   MemRandomize(dst_pixels_opt, kSize);
   memcpy(dst_pixels_c, dst_pixels_opt, kSize);
   MaskCpuFlags(0);
   ARGBCopyAlpha(orig_pixels, benchmark_width_ * 4,
                 dst_pixels_c, benchmark_width_ * 4,
                 benchmark_width_, benchmark_height_);
   MaskCpuFlags(-1);
   for (int i = 0; i < benchmark_iterations_; ++i) {
     ARGBCopyAlpha(orig_pixels, benchmark_width_ * 4,
                   dst_pixels_opt, benchmark_width_ * 4,
                   benchmark_width_, benchmark_height_);
   }
   for (int i = 0; i < kSize; ++i) {
     EXPECT_EQ(dst_pixels_c[i], dst_pixels_opt[i]);
   }
   free_aligned_buffer_64(dst_pixels_c);
   free_aligned_buffer_64(dst_pixels_opt);
   free_aligned_buffer_64(orig_pixels);
 }
 TEST_F(libyuvTest, TestARGBCopyYToAlpha) {
   const int kPixels = benchmark_width_ * benchmark_height_;
   align_buffer_64(orig_pixels, kPixels);
   align_buffer_64(dst_pixels_opt, kPixels * 4);
   align_buffer_64(dst_pixels_c, kPixels * 4);
   MemRandomize(orig_pixels, kPixels);
   MemRandomize(dst_pixels_opt, kPixels * 4);
   memcpy(dst_pixels_c, dst_pixels_opt, kPixels * 4);
   MaskCpuFlags(0);
   ARGBCopyYToAlpha(orig_pixels, benchmark_width_,
                    dst_pixels_c, benchmark_width_ * 4,
                    benchmark_width_, benchmark_height_);
   MaskCpuFlags(-1);
   for (int i = 0; i < benchmark_iterations_; ++i) {
     ARGBCopyYToAlpha(orig_pixels, benchmark_width_,
                      dst_pixels_opt, benchmark_width_ * 4,
                      benchmark_width_, benchmark_height_);
   }
   for (int i = 0; i < kPixels * 4; ++i) {
     EXPECT_EQ(dst_pixels_c[i], dst_pixels_opt[i]);
   }
   free_aligned_buffer_64(dst_pixels_c);
   free_aligned_buffer_64(dst_pixels_opt);
   free_aligned_buffer_64(orig_pixels);
 }
 }  // namespace libyuv

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media/libyuv/unit_test/planar_test.cc@b8a032363ba2 (annotated)

media/libyuv/unit_test/planar_test.cc