Move libvpx from DEPS to src

third_party/libvpx/source/libvpx/test/vp9_thread_test.cc

Index: third_party/libvpx/source/libvpx/test/vp9_thread_test.cc
diff --git a/third_party/libvpx/source/libvpx/test/vp9_thread_test.cc b/third_party/libvpx/source/libvpx/test/vp9_thread_test.cc
new file mode 100644
index 0000000000000000000000000000000000000000..902a6fc35db42406286a9bf8f682ebd1be9802bf
--- /dev/null
+++ b/third_party/libvpx/source/libvpx/test/vp9_thread_test.cc
@@ -0,0 +1,314 @@
+/*
+ *  Copyright (c) 2013 The WebM 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 <string>
+
+#include "third_party/googletest/src/include/gtest/gtest.h"
+#include "./vpx_config.h"
+#include "test/codec_factory.h"
+#include "test/decode_test_driver.h"
+#include "test/md5_helper.h"
+#if CONFIG_WEBM_IO
+#include "test/webm_video_source.h"
+#endif
+#include "vp9/common/vp9_thread.h"
+
+namespace {
+
+using std::string;
+
+class VP9WorkerThreadTest : public ::testing::TestWithParam<bool> {
+ protected:
+  virtual ~VP9WorkerThreadTest() {}
+  virtual void SetUp() {
+    vp9_get_worker_interface()->init(&worker_);
+  }
+
+  virtual void TearDown() {
+    vp9_get_worker_interface()->end(&worker_);
+  }
+
+  void Run(VP9Worker* worker) {
+    const bool synchronous = GetParam();
+    if (synchronous) {
+      vp9_get_worker_interface()->execute(worker);
+    } else {
+      vp9_get_worker_interface()->launch(worker);
+    }
+  }
+
+  VP9Worker worker_;
+};
+
+int ThreadHook(void* data, void* return_value) {
+  int* const hook_data = reinterpret_cast<int*>(data);
+  *hook_data = 5;
+  return *reinterpret_cast<int*>(return_value);
+}
+
+TEST_P(VP9WorkerThreadTest, HookSuccess) {
+  // should be a no-op.
+  EXPECT_NE(vp9_get_worker_interface()->sync(&worker_), 0);
+
+  for (int i = 0; i < 2; ++i) {
+    EXPECT_NE(vp9_get_worker_interface()->reset(&worker_), 0);
+
+    int hook_data = 0;
+    int return_value = 1;  // return successfully from the hook
+    worker_.hook = ThreadHook;
+    worker_.data1 = &hook_data;
+    worker_.data2 = &return_value;
+
+    Run(&worker_);
+    EXPECT_NE(vp9_get_worker_interface()->sync(&worker_), 0);
+    EXPECT_FALSE(worker_.had_error);
+    EXPECT_EQ(5, hook_data);
+
+    // should be a no-op.
+    EXPECT_NE(vp9_get_worker_interface()->sync(&worker_), 0);
+  }
+}
+
+TEST_P(VP9WorkerThreadTest, HookFailure) {
+  EXPECT_NE(vp9_get_worker_interface()->reset(&worker_), 0);
+
+  int hook_data = 0;
+  int return_value = 0;  // return failure from the hook
+  worker_.hook = ThreadHook;
+  worker_.data1 = &hook_data;
+  worker_.data2 = &return_value;
+
+  Run(&worker_);
+  EXPECT_FALSE(vp9_get_worker_interface()->sync(&worker_));
+  EXPECT_EQ(1, worker_.had_error);
+
+  // Ensure _reset() clears the error and _launch() can be called again.
+  return_value = 1;
+  EXPECT_NE(vp9_get_worker_interface()->reset(&worker_), 0);
+  EXPECT_FALSE(worker_.had_error);
+  vp9_get_worker_interface()->launch(&worker_);
+  EXPECT_NE(vp9_get_worker_interface()->sync(&worker_), 0);
+  EXPECT_FALSE(worker_.had_error);
+}
+
+TEST_P(VP9WorkerThreadTest, EndWithoutSync) {
+  // Create a large number of threads to increase the chances of detecting a
+  // race. Doing more work in the hook is no guarantee as any race would occur
+  // post hook execution in the main thread loop driver.
+  static const int kNumWorkers = 64;
+  VP9Worker workers[kNumWorkers];
+  int hook_data[kNumWorkers];
+  int return_value[kNumWorkers];
+
+  for (int n = 0; n < kNumWorkers; ++n) {
+    vp9_get_worker_interface()->init(&workers[n]);
+    return_value[n] = 1;  // return successfully from the hook
+    workers[n].hook = ThreadHook;
+    workers[n].data1 = &hook_data[n];
+    workers[n].data2 = &return_value[n];
+  }
+
+  for (int i = 0; i < 2; ++i) {
+    for (int n = 0; n < kNumWorkers; ++n) {
+      EXPECT_NE(vp9_get_worker_interface()->reset(&workers[n]), 0);
+      hook_data[n] = 0;
+    }
+
+    for (int n = 0; n < kNumWorkers; ++n) {
+      Run(&workers[n]);
+    }
+
+    for (int n = kNumWorkers - 1; n >= 0; --n) {
+      vp9_get_worker_interface()->end(&workers[n]);
+    }
+  }
+}
+
+TEST(VP9WorkerThreadTest, TestInterfaceAPI) {
+  EXPECT_EQ(0, vp9_set_worker_interface(NULL));
+  EXPECT_TRUE(vp9_get_worker_interface() != NULL);
+  for (int i = 0; i < 6; ++i) {
+    VP9WorkerInterface winterface = *vp9_get_worker_interface();
+    switch (i) {
+      default:
+      case 0: winterface.init = NULL; break;
+      case 1: winterface.reset = NULL; break;
+      case 2: winterface.sync = NULL; break;
+      case 3: winterface.launch = NULL; break;
+      case 4: winterface.execute = NULL; break;
+      case 5: winterface.end = NULL; break;
+    }
+    EXPECT_EQ(0, vp9_set_worker_interface(&winterface));
+  }
+}
+
+// -----------------------------------------------------------------------------
+// Multi-threaded decode tests
+
+#if CONFIG_WEBM_IO
+struct FileList {
+  const char *name;
+  const char *expected_md5;
+};
+
+// Decodes |filename| with |num_threads|. Returns the md5 of the decoded frames.
+string DecodeFile(const string& filename, int num_threads) {
+  libvpx_test::WebMVideoSource video(filename);
+  video.Init();
+
+  vpx_codec_dec_cfg_t cfg = vpx_codec_dec_cfg_t();
+  cfg.threads = num_threads;
+  libvpx_test::VP9Decoder decoder(cfg, 0);
+
+  libvpx_test::MD5 md5;
+  for (video.Begin(); video.cxdata(); video.Next()) {
+    const vpx_codec_err_t res =
+        decoder.DecodeFrame(video.cxdata(), video.frame_size());
+    if (res != VPX_CODEC_OK) {
+      EXPECT_EQ(VPX_CODEC_OK, res) << decoder.DecodeError();
+      break;
+    }
+
+    libvpx_test::DxDataIterator dec_iter = decoder.GetDxData();
+    const vpx_image_t *img = NULL;
+
+    // Get decompressed data
+    while ((img = dec_iter.Next())) {
+      md5.Add(img);
+    }
+  }
+  return string(md5.Get());
+}
+
+void DecodeFiles(const FileList files[]) {
+  for (const FileList *iter = files; iter->name != NULL; ++iter) {
+    SCOPED_TRACE(iter->name);
+    for (int t = 2; t <= 8; ++t) {
+      EXPECT_EQ(iter->expected_md5, DecodeFile(iter->name, t))
+          << "threads = " << t;
+    }
+  }
+}
+
+// Trivial serialized thread worker interface implementation.
+// Note any worker that requires synchronization between other workers will
+// hang.
+namespace impl {
+
+void Init(VP9Worker *const worker) { memset(worker, 0, sizeof(*worker)); }
+int Reset(VP9Worker *const /*worker*/) { return 1; }
+int Sync(VP9Worker *const worker) { return !worker->had_error; }
+
+void Execute(VP9Worker *const worker) {
+  worker->had_error |= !worker->hook(worker->data1, worker->data2);
+}
+
+void Launch(VP9Worker *const worker) { Execute(worker); }
+void End(VP9Worker *const /*worker*/) {}
+
+}  // namespace impl
+
+TEST(VP9WorkerThreadTest, TestSerialInterface) {
+  static const VP9WorkerInterface serial_interface = {
+    impl::Init, impl::Reset, impl::Sync, impl::Launch, impl::Execute, impl::End
+  };
+  // TODO(jzern): Avoid using a file that will use the row-based thread
+  // loopfilter, with the simple serialized implementation it will hang. This is
+  // due to its expectation that rows will be run in parallel as they wait on
+  // progress in the row above before proceeding.
+  static const char expected_md5[] = "b35a1b707b28e82be025d960aba039bc";
+  static const char filename[] = "vp90-2-03-size-226x226.webm";
+  VP9WorkerInterface default_interface = *vp9_get_worker_interface();
+
+  EXPECT_NE(vp9_set_worker_interface(&serial_interface), 0);
+  EXPECT_EQ(expected_md5, DecodeFile(filename, 2));
+
+  // Reset the interface.
+  EXPECT_NE(vp9_set_worker_interface(&default_interface), 0);
+  EXPECT_EQ(expected_md5, DecodeFile(filename, 2));
+}
+
+TEST(VP9DecodeMultiThreadedTest, Decode) {
+  // no tiles or frame parallel; this exercises loop filter threading.
+  EXPECT_EQ("b35a1b707b28e82be025d960aba039bc",
+            DecodeFile("vp90-2-03-size-226x226.webm", 2));
+}
+
+TEST(VP9DecodeMultiThreadedTest, Decode2) {
+  static const FileList files[] = {
+    { "vp90-2-08-tile_1x2_frame_parallel.webm",
+      "68ede6abd66bae0a2edf2eb9232241b6" },
+    { "vp90-2-08-tile_1x4_frame_parallel.webm",
+      "368ebc6ebf3a5e478d85b2c3149b2848" },
+    { "vp90-2-08-tile_1x8_frame_parallel.webm",
+      "17e439da2388aff3a0f69cb22579c6c1" },
+    { NULL, NULL }
+  };
+
+  DecodeFiles(files);
+}
+
+// Test tile quantity changes within one file.
+TEST(VP9DecodeMultiThreadedTest, Decode3) {
+  static const FileList files[] = {
+    { "vp90-2-14-resize-fp-tiles-1-16.webm",
+      "0cd5e632c326297e975f38949c31ea94" },
+    { "vp90-2-14-resize-fp-tiles-1-2-4-8-16.webm",
+      "5c78a96a42e7f4a4f6b2edcdb791e44c" },
+    { "vp90-2-14-resize-fp-tiles-1-2.webm",
+      "e030450ae85c3277be2a418769df98e2" },
+    { "vp90-2-14-resize-fp-tiles-1-4.webm",
+      "312eed4e2b64eb7a4e7f18916606a430" },
+    { "vp90-2-14-resize-fp-tiles-16-1.webm",
+      "1755c16d8af16a9cb3fe7338d90abe52" },
+    { "vp90-2-14-resize-fp-tiles-16-2.webm",
+      "500300592d3fcb6f12fab25e48aaf4df" },
+    { "vp90-2-14-resize-fp-tiles-16-4.webm",
+      "47c48379fa6331215d91c67648e1af6e" },
+    { "vp90-2-14-resize-fp-tiles-16-8-4-2-1.webm",
+      "eecf17290739bc708506fa4827665989" },
+    { "vp90-2-14-resize-fp-tiles-16-8.webm",
+      "29b6bb54e4c26b5ca85d5de5fed94e76" },
+    { "vp90-2-14-resize-fp-tiles-1-8.webm",
+      "1b6f175e08cd82cf84bb800ac6d1caa3" },
+    { "vp90-2-14-resize-fp-tiles-2-16.webm",
+      "ca3b03e4197995d8d5444ede7a6c0804" },
+    { "vp90-2-14-resize-fp-tiles-2-1.webm",
+      "99aec065369d70bbb78ccdff65afed3f" },
+    { "vp90-2-14-resize-fp-tiles-2-4.webm",
+      "22d0ebdb49b87d2920a85aea32e1afd5" },
+    { "vp90-2-14-resize-fp-tiles-2-8.webm",
+      "c2115cf051c62e0f7db1d4a783831541" },
+    { "vp90-2-14-resize-fp-tiles-4-16.webm",
+      "c690d7e1719b31367564cac0af0939cb" },
+    { "vp90-2-14-resize-fp-tiles-4-1.webm",
+      "a926020b2cc3e15ad4cc271853a0ff26" },
+    { "vp90-2-14-resize-fp-tiles-4-2.webm",
+      "42699063d9e581f1993d0cf890c2be78" },
+    { "vp90-2-14-resize-fp-tiles-4-8.webm",
+      "7f76d96036382f45121e3d5aa6f8ec52" },
+    { "vp90-2-14-resize-fp-tiles-8-16.webm",
+      "76a43fcdd7e658542913ea43216ec55d" },
+    { "vp90-2-14-resize-fp-tiles-8-1.webm",
+      "8e3fbe89486ca60a59299dea9da91378" },
+    { "vp90-2-14-resize-fp-tiles-8-2.webm",
+      "ae96f21f21b6370cc0125621b441fc52" },
+    { "vp90-2-14-resize-fp-tiles-8-4.webm",
+      "3eb4f24f10640d42218f7fd7b9fd30d4" },
+    { NULL, NULL }
+  };
+
+  DecodeFiles(files);
+}
+#endif  // CONFIG_WEBM_IO
+
+INSTANTIATE_TEST_CASE_P(Synchronous, VP9WorkerThreadTest, ::testing::Bool());
+
+}  // namespace