Revert of Add scroll perf test for protocol in chromoting

remoting/test/cyclic_frame_generator.cc

Index: remoting/test/cyclic_frame_generator.cc
diff --git a/remoting/test/cyclic_frame_generator.cc b/remoting/test/cyclic_frame_generator.cc
index 11c8bc57a2d8eb4d46983cb8c261a4d026713968..c8f566c5638ef5f592f252148db7c8e225a12640 100644
--- a/remoting/test/cyclic_frame_generator.cc
+++ b/remoting/test/cyclic_frame_generator.cc
@@ -4,13 +4,57 @@
 
 #include "remoting/test/cyclic_frame_generator.h"
 
+#include "base/base_paths.h"
+#include "base/files/file_util.h"
+#include "base/path_service.h"
 #include "base/time/default_tick_clock.h"
-#include "remoting/test/frame_generator_util.h"
+#include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/webrtc/modules/desktop_capture/desktop_frame.h"
 #include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
+#include "ui/gfx/codec/png_codec.h"
 
 namespace remoting {
 namespace test {
+
+namespace {
+
+const int kBarcodeCellWidth = 8;
+const int kBarcodeCellHeight = 8;
+const int kBarcodeBits = 10;
+const int kBarcodeBlackThreshold = 85;
+const int kBarcodeWhiteThreshold = 170;
+
+std::unique_ptr<webrtc::DesktopFrame> LoadDesktopFrameFromPng(
+    const base::FilePath& file_path) {
+  std::string file_content;
+  if (!base::ReadFileToString(file_path, &file_content))
+    LOG(FATAL) << "Failed to read " << file_path.MaybeAsASCII()
+               << ". Please run remoting/test/data/download.sh";
+  SkBitmap bitmap;
+  gfx::PNGCodec::Decode(reinterpret_cast<const uint8_t*>(file_content.data()),
+                        file_content.size(), &bitmap);
+  std::unique_ptr<webrtc::DesktopFrame> frame(new webrtc::BasicDesktopFrame(
+      webrtc::DesktopSize(bitmap.width(), bitmap.height())));
+  bitmap.copyPixelsTo(frame->data(),
+                      frame->stride() * frame->size().height(),
+                      frame->stride());
+  return frame;
+}
+
+void DrawRect(webrtc::DesktopFrame* frame,
+              webrtc::DesktopRect rect,
+              uint32_t color) {
+  for (int y = rect.top(); y < rect.bottom(); ++y) {
+    uint32_t* data = reinterpret_cast<uint32_t*>(
+        frame->data() + y * frame->stride() +
+        rect.left() * webrtc::DesktopFrame::kBytesPerPixel);
+    for (int x = 0; x < rect.width(); ++x) {
+      data[x] = color;
+    }
+  }
+}
+
+}  // namespace
 
 CyclicFrameGenerator::ChangeInfo::ChangeInfo() = default;
 CyclicFrameGenerator::ChangeInfo::ChangeInfo(ChangeType type,
@@ -19,9 +63,17 @@
 
 // static
 scoped_refptr<CyclicFrameGenerator> CyclicFrameGenerator::Create() {
+  base::FilePath test_data_path;
+  PathService::Get(base::DIR_SOURCE_ROOT, &test_data_path);
+  test_data_path = test_data_path.Append(FILE_PATH_LITERAL("remoting"));
+  test_data_path = test_data_path.Append(FILE_PATH_LITERAL("test"));
+  test_data_path = test_data_path.Append(FILE_PATH_LITERAL("data"));
+
   std::vector<std::unique_ptr<webrtc::DesktopFrame>> frames;
-  frames.push_back(LoadDesktopFrameFromPng("test_frame1.png"));
-  frames.push_back(LoadDesktopFrameFromPng("test_frame2.png"));
+  frames.push_back(
+      LoadDesktopFrameFromPng(test_data_path.AppendASCII("test_frame1.png")));
+  frames.push_back(
+      LoadDesktopFrameFromPng(test_data_path.AppendASCII("test_frame2.png")));
   return new CyclicFrameGenerator(std::move(frames));
 }
 
@@ -80,8 +132,23 @@
     last_frame_type_ = ChangeType::NO_CHANGES;
   }
 
-  if (draw_barcode_)
-    DrawBarcode(frame_id, frame_id != last_frame_id_, frame.get());
+  // Render barcode.
+  if (draw_barcode_) {
+    uint32_t value = static_cast<uint32_t>(frame_id);
+    CHECK(value < (1U << kBarcodeBits));
+    for (int i = 0; i < kBarcodeBits; ++i) {
+      DrawRect(frame.get(), webrtc::DesktopRect::MakeXYWH(i * kBarcodeCellWidth,
+                                                          0, kBarcodeCellWidth,
+                                                          kBarcodeCellHeight),
+               (value & 1) ? 0xffffffff : 0xff000000);
+      value >>= 1;
+    }
+
+    if (frame_id != last_frame_id_) {
+      frame->mutable_updated_region()->AddRect(webrtc::DesktopRect::MakeXYWH(
+          0, 0, kBarcodeCellWidth * kBarcodeBits, kBarcodeCellHeight));
+    }
+  }
 
   last_reference_frame_ = reference_frame;
   last_cursor_state_ = cursor_state;
@@ -93,7 +160,31 @@
 CyclicFrameGenerator::ChangeInfoList CyclicFrameGenerator::GetChangeList(
     webrtc::DesktopFrame* frame) {
   CHECK(draw_barcode_);
-  int frame_id = ReadBarcode(*frame);
+  int frame_id = 0;
+  for (int i = kBarcodeBits - 1; i >= 0; --i) {
+    // Sample barcode in the center of the cell for each bit.
+    int x = i * kBarcodeCellWidth + kBarcodeCellWidth / 2;
+    int y = kBarcodeCellHeight / 2;
+    uint8_t* data = (frame->data() + y * frame->stride() +
+                     x * webrtc::DesktopFrame::kBytesPerPixel);
+    int b = data[0];
+    int g = data[1];
+    int r = data[2];
+    bool bit = 0;
+    if (b > kBarcodeWhiteThreshold && g > kBarcodeWhiteThreshold &&
+        r > kBarcodeWhiteThreshold) {
+      bit = 1;
+    } else if (b < kBarcodeBlackThreshold && g < kBarcodeBlackThreshold &&
+        r < kBarcodeBlackThreshold) {
+      bit = 0;
+    } else {
+      LOG(FATAL) << "Invalid barcode.";
+    }
+    frame_id <<= 1;
+    if (bit)
+      frame_id |= 1;
+  }
+
   CHECK_GE(frame_id, last_identifier_frame_);
 
   ChangeInfoList result;