/*
 *  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 "../unit_test/unit_test.h"

#include <stdlib.h>  // For getenv()

#include <cstring>

#ifdef LIBYUV_USE_GFLAGS
#include "gflags/gflags.h"
#endif

// Change this to 1000 for benchmarking.
// TODO(fbarchard): Add command line parsing to pass this as option.
#define BENCHMARK_ITERATIONS 1

unsigned int fastrand_seed = 0xfb;

#ifdef LIBYUV_USE_GFLAGS
DEFINE_int32(libyuv_width, 0, "width of test image.");
DEFINE_int32(libyuv_height, 0, "height of test image.");
DEFINE_int32(libyuv_repeat, 0, "number of times to repeat test.");
DEFINE_int32(libyuv_flags, 0, "cpu flags for reference code. 1 = C, -1 = SIMD");
DEFINE_int32(libyuv_cpu_info,
             0,
             "cpu flags for benchmark code. 1 = C, -1 = SIMD");
#else
// Disable command line parameters if gflags disabled.
static const int32 FLAGS_libyuv_width = 0;
static const int32 FLAGS_libyuv_height = 0;
static const int32 FLAGS_libyuv_repeat = 0;
static const int32 FLAGS_libyuv_flags = 0;
static const int32 FLAGS_libyuv_cpu_info = 0;
#endif

// For quicker unittests, default is 128 x 72.  But when benchmarking,
// default to 720p.  Allow size to specify.
// Set flags to -1 for benchmarking to avoid slower C code.

LibYUVConvertTest::LibYUVConvertTest()
    : benchmark_iterations_(BENCHMARK_ITERATIONS),
      benchmark_width_(128),
      benchmark_height_(72),
      disable_cpu_flags_(1),
      benchmark_cpu_info_(-1) {
  const char* repeat = getenv("LIBYUV_REPEAT");
  if (repeat) {
    benchmark_iterations_ = atoi(repeat);  // NOLINT
  }
  if (FLAGS_libyuv_repeat) {
    benchmark_iterations_ = FLAGS_libyuv_repeat;
  }
  if (benchmark_iterations_ > 1) {
    benchmark_width_ = 1280;
    benchmark_height_ = 720;
  }
  const char* width = getenv("LIBYUV_WIDTH");
  if (width) {
    benchmark_width_ = atoi(width);  // NOLINT
  }
  if (FLAGS_libyuv_width) {
    benchmark_width_ = FLAGS_libyuv_width;
  }
  const char* height = getenv("LIBYUV_HEIGHT");
  if (height) {
    benchmark_height_ = atoi(height);  // NOLINT
  }
  if (FLAGS_libyuv_height) {
    benchmark_height_ = FLAGS_libyuv_height;
  }
  const char* cpu_flags = getenv("LIBYUV_FLAGS");
  if (cpu_flags) {
    disable_cpu_flags_ = atoi(cpu_flags);  // NOLINT
  }
  if (FLAGS_libyuv_flags) {
    disable_cpu_flags_ = FLAGS_libyuv_flags;
  }
  const char* cpu_info = getenv("LIBYUV_CPU_INFO");
  if (cpu_info) {
    benchmark_cpu_info_ = atoi(cpu_flags);  // NOLINT
  }
  if (FLAGS_libyuv_cpu_info) {
    benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
  }
  benchmark_pixels_div256_ =
      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
                            static_cast<double>(Abs(benchmark_height_)) *
                            static_cast<double>(benchmark_iterations_) +
                        255.0) /
                       256.0);
  benchmark_pixels_div1280_ =
      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
                            static_cast<double>(Abs(benchmark_height_)) *
                            static_cast<double>(benchmark_iterations_) +
                        1279.0) /
                       1280.0);
}

LibYUVColorTest::LibYUVColorTest()
    : benchmark_iterations_(BENCHMARK_ITERATIONS),
      benchmark_width_(128),
      benchmark_height_(72),
      disable_cpu_flags_(1),
      benchmark_cpu_info_(-1) {
  const char* repeat = getenv("LIBYUV_REPEAT");
  if (repeat) {
    benchmark_iterations_ = atoi(repeat);  // NOLINT
  }
  if (FLAGS_libyuv_repeat) {
    benchmark_iterations_ = FLAGS_libyuv_repeat;
  }
  if (benchmark_iterations_ > 1) {
    benchmark_width_ = 1280;
    benchmark_height_ = 720;
  }
  const char* width = getenv("LIBYUV_WIDTH");
  if (width) {
    benchmark_width_ = atoi(width);  // NOLINT
  }
  if (FLAGS_libyuv_width) {
    benchmark_width_ = FLAGS_libyuv_width;
  }
  const char* height = getenv("LIBYUV_HEIGHT");
  if (height) {
    benchmark_height_ = atoi(height);  // NOLINT
  }
  if (FLAGS_libyuv_height) {
    benchmark_height_ = FLAGS_libyuv_height;
  }
  const char* cpu_flags = getenv("LIBYUV_FLAGS");
  if (cpu_flags) {
    disable_cpu_flags_ = atoi(cpu_flags);  // NOLINT
  }
  if (FLAGS_libyuv_flags) {
    disable_cpu_flags_ = FLAGS_libyuv_flags;
  }
  const char* cpu_info = getenv("LIBYUV_CPU_INFO");
  if (cpu_info) {
    benchmark_cpu_info_ = atoi(cpu_flags);  // NOLINT
  }
  if (FLAGS_libyuv_cpu_info) {
    benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
  }
  benchmark_pixels_div256_ =
      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
                            static_cast<double>(Abs(benchmark_height_)) *
                            static_cast<double>(benchmark_iterations_) +
                        255.0) /
                       256.0);
  benchmark_pixels_div1280_ =
      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
                            static_cast<double>(Abs(benchmark_height_)) *
                            static_cast<double>(benchmark_iterations_) +
                        1279.0) /
                       1280.0);
}

LibYUVScaleTest::LibYUVScaleTest()
    : benchmark_iterations_(BENCHMARK_ITERATIONS),
      benchmark_width_(128),
      benchmark_height_(72),
      disable_cpu_flags_(1),
      benchmark_cpu_info_(-1) {
  const char* repeat = getenv("LIBYUV_REPEAT");
  if (repeat) {
    benchmark_iterations_ = atoi(repeat);  // NOLINT
  }
  if (FLAGS_libyuv_repeat) {
    benchmark_iterations_ = FLAGS_libyuv_repeat;
  }
  if (benchmark_iterations_ > 1) {
    benchmark_width_ = 1280;
    benchmark_height_ = 720;
  }
  const char* width = getenv("LIBYUV_WIDTH");
  if (width) {
    benchmark_width_ = atoi(width);  // NOLINT
  }
  if (FLAGS_libyuv_width) {
    benchmark_width_ = FLAGS_libyuv_width;
  }
  const char* height = getenv("LIBYUV_HEIGHT");
  if (height) {
    benchmark_height_ = atoi(height);  // NOLINT
  }
  if (FLAGS_libyuv_height) {
    benchmark_height_ = FLAGS_libyuv_height;
  }
  const char* cpu_flags = getenv("LIBYUV_FLAGS");
  if (cpu_flags) {
    disable_cpu_flags_ = atoi(cpu_flags);  // NOLINT
  }
  if (FLAGS_libyuv_flags) {
    disable_cpu_flags_ = FLAGS_libyuv_flags;
  }
  const char* cpu_info = getenv("LIBYUV_CPU_INFO");
  if (cpu_info) {
    benchmark_cpu_info_ = atoi(cpu_flags);  // NOLINT
  }
  if (FLAGS_libyuv_cpu_info) {
    benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
  }
  benchmark_pixels_div256_ =
      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
                            static_cast<double>(Abs(benchmark_height_)) *
                            static_cast<double>(benchmark_iterations_) +
                        255.0) /
                       256.0);
  benchmark_pixels_div1280_ =
      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
                            static_cast<double>(Abs(benchmark_height_)) *
                            static_cast<double>(benchmark_iterations_) +
                        1279.0) /
                       1280.0);
}

LibYUVRotateTest::LibYUVRotateTest()
    : benchmark_iterations_(BENCHMARK_ITERATIONS),
      benchmark_width_(128),
      benchmark_height_(72),
      disable_cpu_flags_(1),
      benchmark_cpu_info_(-1) {
  const char* repeat = getenv("LIBYUV_REPEAT");
  if (repeat) {
    benchmark_iterations_ = atoi(repeat);  // NOLINT
  }
  if (FLAGS_libyuv_repeat) {
    benchmark_iterations_ = FLAGS_libyuv_repeat;
  }
  if (benchmark_iterations_ > 1) {
    benchmark_width_ = 1280;
    benchmark_height_ = 720;
  }
  const char* width = getenv("LIBYUV_WIDTH");
  if (width) {
    benchmark_width_ = atoi(width);  // NOLINT
  }
  if (FLAGS_libyuv_width) {
    benchmark_width_ = FLAGS_libyuv_width;
  }
  const char* height = getenv("LIBYUV_HEIGHT");
  if (height) {
    benchmark_height_ = atoi(height);  // NOLINT
  }
  if (FLAGS_libyuv_height) {
    benchmark_height_ = FLAGS_libyuv_height;
  }
  const char* cpu_flags = getenv("LIBYUV_FLAGS");
  if (cpu_flags) {
    disable_cpu_flags_ = atoi(cpu_flags);  // NOLINT
  }
  if (FLAGS_libyuv_flags) {
    disable_cpu_flags_ = FLAGS_libyuv_flags;
  }
  const char* cpu_info = getenv("LIBYUV_CPU_INFO");
  if (cpu_info) {
    benchmark_cpu_info_ = atoi(cpu_flags);  // NOLINT
  }
  if (FLAGS_libyuv_cpu_info) {
    benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
  }
  benchmark_pixels_div256_ =
      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
                            static_cast<double>(Abs(benchmark_height_)) *
                            static_cast<double>(benchmark_iterations_) +
                        255.0) /
                       256.0);
  benchmark_pixels_div1280_ =
      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
                            static_cast<double>(Abs(benchmark_height_)) *
                            static_cast<double>(benchmark_iterations_) +
                        1279.0) /
                       1280.0);
}

LibYUVPlanarTest::LibYUVPlanarTest()
    : benchmark_iterations_(BENCHMARK_ITERATIONS),
      benchmark_width_(128),
      benchmark_height_(72),
      disable_cpu_flags_(1),
      benchmark_cpu_info_(-1) {
  const char* repeat = getenv("LIBYUV_REPEAT");
  if (repeat) {
    benchmark_iterations_ = atoi(repeat);  // NOLINT
  }
  if (FLAGS_libyuv_repeat) {
    benchmark_iterations_ = FLAGS_libyuv_repeat;
  }
  if (benchmark_iterations_ > 1) {
    benchmark_width_ = 1280;
    benchmark_height_ = 720;
  }
  const char* width = getenv("LIBYUV_WIDTH");
  if (width) {
    benchmark_width_ = atoi(width);  // NOLINT
  }
  if (FLAGS_libyuv_width) {
    benchmark_width_ = FLAGS_libyuv_width;
  }
  const char* height = getenv("LIBYUV_HEIGHT");
  if (height) {
    benchmark_height_ = atoi(height);  // NOLINT
  }
  if (FLAGS_libyuv_height) {
    benchmark_height_ = FLAGS_libyuv_height;
  }
  const char* cpu_flags = getenv("LIBYUV_FLAGS");
  if (cpu_flags) {
    disable_cpu_flags_ = atoi(cpu_flags);  // NOLINT
  }
  if (FLAGS_libyuv_flags) {
    disable_cpu_flags_ = FLAGS_libyuv_flags;
  }
  const char* cpu_info = getenv("LIBYUV_CPU_INFO");
  if (cpu_info) {
    benchmark_cpu_info_ = atoi(cpu_flags);  // NOLINT
  }
  if (FLAGS_libyuv_cpu_info) {
    benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
  }
  benchmark_pixels_div256_ =
      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
                            static_cast<double>(Abs(benchmark_height_)) *
                            static_cast<double>(benchmark_iterations_) +
                        255.0) /
                       256.0);
  benchmark_pixels_div1280_ =
      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
                            static_cast<double>(Abs(benchmark_height_)) *
                            static_cast<double>(benchmark_iterations_) +
                        1279.0) /
                       1280.0);
}

LibYUVBaseTest::LibYUVBaseTest()
    : benchmark_iterations_(BENCHMARK_ITERATIONS),
      benchmark_width_(128),
      benchmark_height_(72),
      disable_cpu_flags_(1),
      benchmark_cpu_info_(-1) {
  const char* repeat = getenv("LIBYUV_REPEAT");
  if (repeat) {
    benchmark_iterations_ = atoi(repeat);  // NOLINT
  }
  if (FLAGS_libyuv_repeat) {
    benchmark_iterations_ = FLAGS_libyuv_repeat;
  }
  if (benchmark_iterations_ > 1) {
    benchmark_width_ = 1280;
    benchmark_height_ = 720;
  }
  const char* width = getenv("LIBYUV_WIDTH");
  if (width) {
    benchmark_width_ = atoi(width);  // NOLINT
  }
  if (FLAGS_libyuv_width) {
    benchmark_width_ = FLAGS_libyuv_width;
  }
  const char* height = getenv("LIBYUV_HEIGHT");
  if (height) {
    benchmark_height_ = atoi(height);  // NOLINT
  }
  if (FLAGS_libyuv_height) {
    benchmark_height_ = FLAGS_libyuv_height;
  }
  const char* cpu_flags = getenv("LIBYUV_FLAGS");
  if (cpu_flags) {
    disable_cpu_flags_ = atoi(cpu_flags);  // NOLINT
  }
  if (FLAGS_libyuv_flags) {
    disable_cpu_flags_ = FLAGS_libyuv_flags;
  }
  const char* cpu_info = getenv("LIBYUV_CPU_INFO");
  if (cpu_info) {
    benchmark_cpu_info_ = atoi(cpu_flags);  // NOLINT
  }
  if (FLAGS_libyuv_cpu_info) {
    benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
  }
  benchmark_pixels_div256_ =
      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
                            static_cast<double>(Abs(benchmark_height_)) *
                            static_cast<double>(benchmark_iterations_) +
                        255.0) /
                       256.0);
  benchmark_pixels_div1280_ =
      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
                            static_cast<double>(Abs(benchmark_height_)) *
                            static_cast<double>(benchmark_iterations_) +
                        1279.0) /
                       1280.0);
}

int main(int argc, char** argv) {
  ::testing::InitGoogleTest(&argc, argv);
#ifdef LIBYUV_USE_GFLAGS
  // AllowCommandLineParsing allows us to ignore flags passed on to us by
  // Chromium build bots without having to explicitly disable them.
  google::AllowCommandLineReparsing();
  google::ParseCommandLineFlags(&argc, &argv, true);
#endif
  return RUN_ALL_TESTS();
}