Add m-esr52 at 52.6.0

1 files changed, 462 insertions, 0 deletions

diff --git a/media/libyuv/unit_test/scale_argb_test.cc b/media/libyuv/unit_test/scale_argb_test.cc
new file mode 100644
index 000000000..f99782f73
--- /dev/null
+++ b/media/libyuv/unit_test/scale_argb_test.cc
@@ -0,0 +1,462 @@
+/*
+ *  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/convert_argb.h"
+#include "libyuv/cpu_id.h"
+#include "libyuv/scale_argb.h"
+#include "libyuv/video_common.h"
+#include "../unit_test/unit_test.h"
+
+namespace libyuv {
+
+#define STRINGIZE(line) #line
+#define FILELINESTR(file, line) file ":" STRINGIZE(line)
+
+// Test scaling with C vs Opt and return maximum pixel difference. 0 = exact.
+static int ARGBTestFilter(int src_width, int src_height,
+                          int dst_width, int dst_height,
+                          FilterMode f, int benchmark_iterations,
+                          int disable_cpu_flags, int benchmark_cpu_info) {
+  if (!SizeValid(src_width, src_height, dst_width, dst_height)) {
+    return 0;
+  }
+
+  int i, j;
+  const int b = 0;  // 128 to test for padding/stride.
+  int64 src_argb_plane_size = (Abs(src_width) + b * 2) *
+      (Abs(src_height) + b * 2) * 4LL;
+  int src_stride_argb = (b * 2 + Abs(src_width)) * 4;
+
+  align_buffer_page_end(src_argb, src_argb_plane_size);
+  if (!src_argb) {
+    printf("Skipped.  Alloc failed " FILELINESTR(__FILE__, __LINE__) "\n");
+    return 0;
+  }
+  MemRandomize(src_argb, src_argb_plane_size);
+
+  int64 dst_argb_plane_size = (dst_width + b * 2) * (dst_height + b * 2) * 4LL;
+  int dst_stride_argb = (b * 2 + dst_width) * 4;
+
+  align_buffer_page_end(dst_argb_c, dst_argb_plane_size);
+  align_buffer_page_end(dst_argb_opt, dst_argb_plane_size);
+  if (!dst_argb_c || !dst_argb_opt) {
+    printf("Skipped.  Alloc failed " FILELINESTR(__FILE__, __LINE__) "\n");
+    return 0;
+  }
+  memset(dst_argb_c, 2, dst_argb_plane_size);
+  memset(dst_argb_opt, 3, dst_argb_plane_size);
+
+  // Warm up both versions for consistent benchmarks.
+  MaskCpuFlags(disable_cpu_flags);  // Disable all CPU optimization.
+  ARGBScale(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb,
+            src_width, src_height,
+            dst_argb_c + (dst_stride_argb * b) + b * 4, dst_stride_argb,
+            dst_width, dst_height, f);
+  MaskCpuFlags(benchmark_cpu_info);  // Enable all CPU optimization.
+  ARGBScale(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb,
+            src_width, src_height,
+            dst_argb_opt + (dst_stride_argb * b) + b * 4, dst_stride_argb,
+            dst_width, dst_height, f);
+
+  MaskCpuFlags(disable_cpu_flags);  // Disable all CPU optimization.
+  double c_time = get_time();
+  ARGBScale(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb,
+            src_width, src_height,
+            dst_argb_c + (dst_stride_argb * b) + b * 4, dst_stride_argb,
+            dst_width, dst_height, f);
+
+  c_time = (get_time() - c_time);
+
+  MaskCpuFlags(benchmark_cpu_info);  // Enable all CPU optimization.
+  double opt_time = get_time();
+  for (i = 0; i < benchmark_iterations; ++i) {
+    ARGBScale(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb,
+              src_width, src_height,
+              dst_argb_opt + (dst_stride_argb * b) + b * 4, dst_stride_argb,
+              dst_width, dst_height, f);
+  }
+  opt_time = (get_time() - opt_time) / benchmark_iterations;
+
+  // Report performance of C vs OPT
+  printf("filter %d - %8d us C - %8d us OPT\n",
+         f, static_cast<int>(c_time * 1e6), static_cast<int>(opt_time * 1e6));
+
+  // C version may be a little off from the optimized. Order of
+  //  operations may introduce rounding somewhere. So do a difference
+  //  of the buffers and look to see that the max difference isn't
+  //  over 2.
+  int max_diff = 0;
+  for (i = b; i < (dst_height + b); ++i) {
+    for (j = b * 4; j < (dst_width + b) * 4; ++j) {
+      int abs_diff = Abs(dst_argb_c[(i * dst_stride_argb) + j] -
+                         dst_argb_opt[(i * dst_stride_argb) + j]);
+      if (abs_diff > max_diff) {
+        max_diff = abs_diff;
+      }
+    }
+  }
+
+  free_aligned_buffer_page_end(dst_argb_c);
+  free_aligned_buffer_page_end(dst_argb_opt);
+  free_aligned_buffer_page_end(src_argb);
+  return max_diff;
+}
+
+static const int kTileX = 8;
+static const int kTileY = 8;
+
+static int TileARGBScale(const uint8* src_argb, int src_stride_argb,
+                         int src_width, int src_height,
+                         uint8* dst_argb, int dst_stride_argb,
+                         int dst_width, int dst_height,
+                         FilterMode filtering) {
+  for (int y = 0; y < dst_height; y += kTileY) {
+    for (int x = 0; x < dst_width; x += kTileX) {
+      int clip_width = kTileX;
+      if (x + clip_width > dst_width) {
+        clip_width = dst_width - x;
+      }
+      int clip_height = kTileY;
+      if (y + clip_height > dst_height) {
+        clip_height = dst_height - y;
+      }
+      int r = ARGBScaleClip(src_argb, src_stride_argb,
+                            src_width, src_height,
+                            dst_argb, dst_stride_argb,
+                            dst_width, dst_height,
+                            x, y, clip_width, clip_height, filtering);
+      if (r) {
+        return r;
+      }
+    }
+  }
+  return 0;
+}
+
+static int ARGBClipTestFilter(int src_width, int src_height,
+                              int dst_width, int dst_height,
+                              FilterMode f, int benchmark_iterations) {
+  if (!SizeValid(src_width, src_height, dst_width, dst_height)) {
+    return 0;
+  }
+
+  const int b = 128;
+  int64 src_argb_plane_size = (Abs(src_width) + b * 2) *
+      (Abs(src_height) + b * 2) * 4;
+  int src_stride_argb = (b * 2 + Abs(src_width)) * 4;
+
+  align_buffer_page_end(src_argb, src_argb_plane_size);
+  if (!src_argb) {
+    printf("Skipped.  Alloc failed " FILELINESTR(__FILE__, __LINE__) "\n");
+    return 0;
+  }
+  memset(src_argb, 1, src_argb_plane_size);
+
+  int64 dst_argb_plane_size = (dst_width + b * 2) * (dst_height + b * 2) * 4;
+  int dst_stride_argb = (b * 2 + dst_width) * 4;
+
+  int i, j;
+  for (i = b; i < (Abs(src_height) + b); ++i) {
+    for (j = b; j < (Abs(src_width) + b) * 4; ++j) {
+      src_argb[(i * src_stride_argb) + j] = (fastrand() & 0xff);
+    }
+  }
+
+  align_buffer_page_end(dst_argb_c, dst_argb_plane_size);
+  align_buffer_page_end(dst_argb_opt, dst_argb_plane_size);
+  if (!dst_argb_c || !dst_argb_opt) {
+    printf("Skipped.  Alloc failed " FILELINESTR(__FILE__, __LINE__) "\n");
+    return 0;
+  }
+  memset(dst_argb_c, 2, dst_argb_plane_size);
+  memset(dst_argb_opt, 3, dst_argb_plane_size);
+
+  // Do full image, no clipping.
+  double c_time = get_time();
+  ARGBScale(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb,
+            src_width, src_height,
+            dst_argb_c + (dst_stride_argb * b) + b * 4, dst_stride_argb,
+            dst_width, dst_height, f);
+  c_time = (get_time() - c_time);
+
+  // Do tiled image, clipping scale to a tile at a time.
+  double opt_time = get_time();
+  for (i = 0; i < benchmark_iterations; ++i) {
+    TileARGBScale(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb,
+                  src_width, src_height,
+                  dst_argb_opt + (dst_stride_argb * b) + b * 4, dst_stride_argb,
+                  dst_width, dst_height, f);
+  }
+  opt_time = (get_time() - opt_time) / benchmark_iterations;
+
+  // Report performance of Full vs Tiled.
+  printf("filter %d - %8d us Full - %8d us Tiled\n",
+         f, static_cast<int>(c_time * 1e6), static_cast<int>(opt_time * 1e6));
+
+  // Compare full scaled image vs tiled image.
+  int max_diff = 0;
+  for (i = b; i < (dst_height + b); ++i) {
+    for (j = b * 4; j < (dst_width + b) * 4; ++j) {
+      int abs_diff = Abs(dst_argb_c[(i * dst_stride_argb) + j] -
+                         dst_argb_opt[(i * dst_stride_argb) + j]);
+      if (abs_diff > max_diff) {
+        max_diff = abs_diff;
+      }
+    }
+  }
+
+  free_aligned_buffer_page_end(dst_argb_c);
+  free_aligned_buffer_page_end(dst_argb_opt);
+  free_aligned_buffer_page_end(src_argb);
+  return max_diff;
+}
+
+// The following adjustments in dimensions ensure the scale factor will be
+// exactly achieved.
+#define DX(x, nom, denom) static_cast<int>((Abs(x) / nom) * nom)
+#define SX(x, nom, denom) static_cast<int>((x / nom) * denom)
+
+#define TEST_FACTOR1(name, filter, nom, denom, max_diff)                       \
+    TEST_F(LibYUVScaleTest, ARGBScaleDownBy##name##_##filter) {                \
+      int diff = ARGBTestFilter(SX(benchmark_width_, nom, denom),              \
+                                SX(benchmark_height_, nom, denom),             \
+                                DX(benchmark_width_, nom, denom),              \
+                                DX(benchmark_height_, nom, denom),             \
+                                kFilter##filter, benchmark_iterations_,        \
+                                disable_cpu_flags_, benchmark_cpu_info_);      \
+      EXPECT_LE(diff, max_diff);                                               \
+    }                                                                          \
+    TEST_F(LibYUVScaleTest, ARGBScaleDownClipBy##name##_##filter) {            \
+      int diff = ARGBClipTestFilter(SX(benchmark_width_, nom, denom),          \
+                                    SX(benchmark_height_, nom, denom),         \
+                                    DX(benchmark_width_, nom, denom),          \
+                                    DX(benchmark_height_, nom, denom),         \
+                                    kFilter##filter, benchmark_iterations_);   \
+      EXPECT_LE(diff, max_diff);                                               \
+    }
+
+// Test a scale factor with all 4 filters.  Expect unfiltered to be exact, but
+// filtering is different fixed point implementations for SSSE3, Neon and C.
+#define TEST_FACTOR(name, nom, denom)                                          \
+    TEST_FACTOR1(name, None, nom, denom, 0)                                    \
+    TEST_FACTOR1(name, Linear, nom, denom, 3)                                  \
+    TEST_FACTOR1(name, Bilinear, nom, denom, 3)                                \
+    TEST_FACTOR1(name, Box, nom, denom, 3)
+
+TEST_FACTOR(2, 1, 2)
+TEST_FACTOR(4, 1, 4)
+TEST_FACTOR(8, 1, 8)
+TEST_FACTOR(3by4, 3, 4)
+TEST_FACTOR(3by8, 3, 8)
+TEST_FACTOR(3, 1, 3)
+#undef TEST_FACTOR1
+#undef TEST_FACTOR
+#undef SX
+#undef DX
+
+#define TEST_SCALETO1(name, width, height, filter, max_diff)                   \
+    TEST_F(LibYUVScaleTest, name##To##width##x##height##_##filter) {           \
+      int diff = ARGBTestFilter(benchmark_width_, benchmark_height_,           \
+                                width, height,                                 \
+                                kFilter##filter, benchmark_iterations_,        \
+                                disable_cpu_flags_, benchmark_cpu_info_);      \
+      EXPECT_LE(diff, max_diff);                                               \
+    }                                                                          \
+    TEST_F(LibYUVScaleTest, name##From##width##x##height##_##filter) {         \
+      int diff = ARGBTestFilter(width, height,                                 \
+                                Abs(benchmark_width_), Abs(benchmark_height_), \
+                                kFilter##filter, benchmark_iterations_,        \
+                                disable_cpu_flags_, benchmark_cpu_info_);      \
+      EXPECT_LE(diff, max_diff);                                               \
+    }                                                                          \
+    TEST_F(LibYUVScaleTest, name##ClipTo##width##x##height##_##filter) {       \
+      int diff = ARGBClipTestFilter(benchmark_width_, benchmark_height_,       \
+                                    width, height,                             \
+                                    kFilter##filter, benchmark_iterations_);   \
+      EXPECT_LE(diff, max_diff);                                               \
+    }                                                                          \
+    TEST_F(LibYUVScaleTest, name##ClipFrom##width##x##height##_##filter) {     \
+      int diff = ARGBClipTestFilter(width, height,                             \
+                                    Abs(benchmark_width_),                     \
+                                    Abs(benchmark_height_),                    \
+                                    kFilter##filter, benchmark_iterations_);   \
+      EXPECT_LE(diff, max_diff);                                               \
+    }
+
+/// Test scale to a specified size with all 4 filters.
+#define TEST_SCALETO(name, width, height)                                      \
+    TEST_SCALETO1(name, width, height, None, 0)                                \
+    TEST_SCALETO1(name, width, height, Linear, 3)                              \
+    TEST_SCALETO1(name, width, height, Bilinear, 3)
+
+TEST_SCALETO(ARGBScale, 1, 1)
+TEST_SCALETO(ARGBScale, 320, 240)
+TEST_SCALETO(ARGBScale, 352, 288)
+TEST_SCALETO(ARGBScale, 569, 480)
+TEST_SCALETO(ARGBScale, 640, 360)
+TEST_SCALETO(ARGBScale, 1280, 720)
+#undef TEST_SCALETO1
+#undef TEST_SCALETO
+
+// Scale with YUV conversion to ARGB and clipping.
+LIBYUV_API
+int YUVToARGBScaleReference2(const uint8* src_y, int src_stride_y,
+                             const uint8* src_u, int src_stride_u,
+                             const uint8* src_v, int src_stride_v,
+                             uint32 src_fourcc,
+                             int src_width, int src_height,
+                             uint8* dst_argb, int dst_stride_argb,
+                             uint32 dst_fourcc,
+                             int dst_width, int dst_height,
+                             int clip_x, int clip_y,
+                             int clip_width, int clip_height,
+                             enum FilterMode filtering) {
+  uint8* argb_buffer = static_cast<uint8*>(malloc(src_width * src_height * 4));
+  int r;
+  I420ToARGB(src_y, src_stride_y,
+             src_u, src_stride_u,
+             src_v, src_stride_v,
+             argb_buffer, src_width * 4,
+             src_width, src_height);
+
+  r = ARGBScaleClip(argb_buffer, src_width * 4,
+                    src_width, src_height,
+                    dst_argb, dst_stride_argb,
+                    dst_width, dst_height,
+                    clip_x, clip_y, clip_width, clip_height,
+                    filtering);
+  free(argb_buffer);
+  return r;
+}
+
+static void FillRamp(uint8* buf, int width, int height, int v, int dx, int dy) {
+  int rv = v;
+  for (int y = 0; y < height; ++y) {
+    for (int x = 0; x < width; ++x) {
+      *buf++ = v;
+      v += dx;
+      if (v < 0 || v > 255) {
+        dx = -dx;
+        v += dx;
+      }
+    }
+    v = rv + dy;
+    if (v < 0 || v > 255) {
+      dy = -dy;
+      v += dy;
+    }
+    rv = v;
+  }
+}
+
+// Test scaling with C vs Opt and return maximum pixel difference. 0 = exact.
+static int YUVToARGBTestFilter(int src_width, int src_height,
+                               int dst_width, int dst_height,
+                               FilterMode f, int benchmark_iterations,
+                               int disable_cpu_flags, int benchmark_cpu_info) {
+  int64 src_y_plane_size = Abs(src_width) * Abs(src_height);
+  int64 src_uv_plane_size = ((Abs(src_width) + 1) / 2) *
+      ((Abs(src_height) + 1) / 2);
+  int src_stride_y = Abs(src_width);
+  int src_stride_uv = (Abs(src_width) + 1) / 2;
+
+  align_buffer_page_end(src_y, src_y_plane_size);
+  align_buffer_page_end(src_u, src_uv_plane_size);
+  align_buffer_page_end(src_v, src_uv_plane_size);
+
+  int64 dst_argb_plane_size = (dst_width) * (dst_height) * 4LL;
+  int dst_stride_argb = (dst_width) * 4;
+  align_buffer_page_end(dst_argb_c, dst_argb_plane_size);
+  align_buffer_page_end(dst_argb_opt, dst_argb_plane_size);
+  if (!dst_argb_c || !dst_argb_opt || !src_y || !src_u || !src_v) {
+    printf("Skipped.  Alloc failed " FILELINESTR(__FILE__, __LINE__) "\n");
+    return 0;
+  }
+  // Fill YUV image with continuous ramp, which is less sensitive to
+  // subsampling and filtering differences for test purposes.
+  FillRamp(src_y, Abs(src_width), Abs(src_height), 128, 1, 1);
+  FillRamp(src_u, (Abs(src_width) + 1) / 2, (Abs(src_height) + 1) / 2, 3, 1, 1);
+  FillRamp(src_v, (Abs(src_width) + 1) / 2, (Abs(src_height) + 1) / 2, 4, 1, 1);
+  memset(dst_argb_c, 2, dst_argb_plane_size);
+  memset(dst_argb_opt, 3, dst_argb_plane_size);
+
+  YUVToARGBScaleReference2(src_y, src_stride_y,
+                           src_u, src_stride_uv,
+                           src_v, src_stride_uv,
+                           libyuv::FOURCC_I420,
+                           src_width, src_height,
+                           dst_argb_c, dst_stride_argb,
+                           libyuv::FOURCC_I420,
+                           dst_width, dst_height,
+                           0, 0, dst_width, dst_height,
+                           f);
+
+  for (int i = 0; i < benchmark_iterations; ++i) {
+    YUVToARGBScaleClip(src_y, src_stride_y,
+                       src_u, src_stride_uv,
+                       src_v, src_stride_uv,
+                       libyuv::FOURCC_I420,
+                       src_width, src_height,
+                       dst_argb_opt, dst_stride_argb,
+                       libyuv::FOURCC_I420,
+                       dst_width, dst_height,
+                       0, 0, dst_width, dst_height,
+                       f);
+  }
+  int max_diff = 0;
+  for (int i = 0; i < dst_height; ++i) {
+    for (int j = 0; j < dst_width * 4; ++j) {
+      int abs_diff = Abs(dst_argb_c[(i * dst_stride_argb) + j] -
+                         dst_argb_opt[(i * dst_stride_argb) + j]);
+      if (abs_diff > max_diff) {
+        printf("error %d at %d,%d c %d opt %d",
+               abs_diff,
+               j, i,
+               dst_argb_c[(i * dst_stride_argb) + j],
+               dst_argb_opt[(i * dst_stride_argb) + j]);
+        EXPECT_LE(abs_diff, 40);
+        max_diff = abs_diff;
+      }
+    }
+  }
+
+  free_aligned_buffer_page_end(dst_argb_c);
+  free_aligned_buffer_page_end(dst_argb_opt);
+  free_aligned_buffer_page_end(src_y);
+  free_aligned_buffer_page_end(src_u);
+  free_aligned_buffer_page_end(src_v);
+  return max_diff;
+}
+
+TEST_F(LibYUVScaleTest, YUVToRGBScaleUp) {
+  int diff = YUVToARGBTestFilter(benchmark_width_, benchmark_height_,
+                                 benchmark_width_ * 3 / 2,
+                                 benchmark_height_ * 3 / 2,
+                                 libyuv::kFilterBilinear,
+                                 benchmark_iterations_,
+                                 disable_cpu_flags_, benchmark_cpu_info_);
+  EXPECT_LE(diff, 10);
+}
+
+TEST_F(LibYUVScaleTest, YUVToRGBScaleDown) {
+  int diff = YUVToARGBTestFilter(benchmark_width_ * 3 / 2,
+                                 benchmark_height_ * 3 / 2,
+                                 benchmark_width_, benchmark_height_,
+                                 libyuv::kFilterBilinear,
+                                 benchmark_iterations_,
+                                 disable_cpu_flags_, benchmark_cpu_info_);
+  EXPECT_LE(diff, 10);
+}
+
+
+}  // namespace libyuv