Enable DisplayList benchmarks to be built on Android (#31268)

Author: George Wright

benchmarking/benchmarking.cc

@@ -5,18 +5,21 @@
 #include "benchmarking.h"
 
 #include "flutter/fml/backtrace.h"
+#include "flutter/fml/build_config.h"
 #include "flutter/fml/command_line.h"
 #include "flutter/fml/icu_util.h"
 
 namespace benchmarking {
 
 int Main(int argc, char** argv) {
   fml::InstallCrashHandler();
+#if !defined(FML_OS_ANDROID)
   fml::CommandLine cmd = fml::CommandLineFromArgcArgv(argc, argv);
-  benchmark::Initialize(&argc, argv);
   std::string icudtl_path =
       cmd.GetOptionValueWithDefault("icu-data-file-path", "icudtl.dat");
   fml::icu::InitializeICU(icudtl_path);
+#endif
+  benchmark::Initialize(&argc, argv);
   ::benchmark::RunSpecifiedBenchmarks();
   return 0;
 }

display_list/BUILD.gn

@@ -55,51 +55,76 @@ fixtures_location("display_list_benchmarks_fixtures") {
   assets_dir = "$target_gen_dir/"
 }
 
-if (enable_unittests) {
-  executable("display_list_benchmarks") {
-    testonly = true
+source_set("display_list_benchmarks_source") {
+  testonly = true
+
+  sources = [
+    "display_list_benchmarks.cc",
+    "display_list_benchmarks.h",
+  ]
+
+  deps = [
+    ":display_list",
+    ":display_list_benchmarks_fixtures",
+    "//flutter/benchmarking",
+    "//flutter/common/graphics",
+    "//flutter/fml",
+    "//flutter/testing:skia",
+    "//flutter/testing:testing_lib",
+    "//third_party/dart/runtime:libdart_jit",  # for tracing
+    "//third_party/skia",
+  ]
+
+  defines = []
 
-    sources = [
-      "display_list_benchmarks.cc",
-      "display_list_benchmarks.h",
+  if (is_android) {
+    libs = [
+      "android",
+      "EGL",
+      "GLESv2",
+    ]
+  }
+
+  # We only do software benchmarks on non-mobile platforms
+  if (!is_android && !is_ios) {
+    sources += [
       "display_list_benchmarks_software.cc",
       "display_list_benchmarks_software.h",
     ]
+    defines += [ "ENABLE_SOFTWARE_BENCHMARKS" ]
+  }
+
+  # iOS and Fuchsia don't support OpenGL
+  if (!is_fuchsia && !is_ios) {
+    defines += [ "ENABLE_OPENGL_BENCHMARKS" ]
+    sources += [
+      "display_list_benchmarks_gl.cc",
+      "display_list_benchmarks_gl.h",
+    ]
+    deps += [ "//flutter/testing:opengl" ]
+  }
 
-    deps = [
-      ":display_list",
-      ":display_list_benchmarks_fixtures",
-      "//flutter/benchmarking",
-      "//flutter/common/graphics",
-      "//flutter/fml",
-      "//flutter/testing:skia",
-      "//flutter/testing:testing_lib",
-      "//third_party/dart/runtime:libdart_jit",  # for tracing
-      "//third_party/skia",
+  if (is_mac || is_ios) {
+    defines += [ "ENABLE_METAL_BENCHMARKS" ]
+    sources += [
+      "display_list_benchmarks_metal.cc",
+      "display_list_benchmarks_metal.h",
     ]
+    deps += [ "//flutter/testing:metal" ]
+  }
 
-    defines = [ "ENABLE_SOFTWARE_BENCHMARKS" ]
-
-    if (!is_fuchsia) {
-      defines += [ "ENABLE_OPENGL_BENCHMARKS" ]
-      sources += [
-        "display_list_benchmarks_gl.cc",
-        "display_list_benchmarks_gl.h",
-      ]
-      deps += [ "//flutter/testing:opengl" ]
-    }
-
-    if (is_mac) {
-      defines += [ "ENABLE_METAL_BENCHMARKS" ]
-      sources += [
-        "display_list_benchmarks_metal.cc",
-        "display_list_benchmarks_metal.h",
-      ]
-      deps += [ "//flutter/testing:metal" ]
-    }
+  # Don't snapshot test results on mobile platforms
+  if (is_android || is_ios) {
+    defines += [ "BENCHMARKS_NO_SNAPSHOT" ]
   }
 }
 
+executable("display_list_benchmarks") {
+  testonly = true
+
+  deps = [ ":display_list_benchmarks_source" ]
+}
+
 if (is_ios) {
   shared_library("ios_display_list_benchmarks") {
     testonly = true
@@ -116,29 +141,9 @@ if (is_ios) {
     ]
     ldflags =
         [ "-Wl,-install_name,@rpath/libios_display_list_benchmarks.dylib" ]
-    defines = [
-      "BENCHMARKS_NO_SNAPSHOT",
-      "ENABLE_METAL_BENCHMARKS",
-    ]
-    sources = [
-      "display_list_benchmarks.cc",
-      "display_list_benchmarks.h",
-      "display_list_benchmarks_metal.cc",
-      "display_list_benchmarks_metal.h",
-    ]
-
     deps = [
-      ":display_list",
-      ":display_list_benchmarks_fixtures",
+      ":display_list_benchmarks_source",
       "//flutter/benchmarking:benchmarking_library",
-      "//flutter/common/graphics",
-      "//flutter/fml",
-      "//flutter/testing:metal",
-      "//flutter/testing:skia",
-      "//flutter/testing:testing_lib",
-      "//third_party/benchmark",
-      "//third_party/dart/runtime:libdart_jit",  # for tracing
-      "//third_party/skia",
     ]
   }
 }

testing/BUILD.gn

@@ -150,26 +150,6 @@ if (enable_unittests) {
     }
   }
 
-  # SwiftShader only supports x86/x86_64
-  if (target_cpu == "x86" || target_cpu == "x64") {
-    source_set("opengl") {
-      testonly = true
-
-      configs += [ "//third_party/swiftshader_flutter:swiftshader_config" ]
-
-      sources = [
-        "test_gl_surface.cc",
-        "test_gl_surface.h",
-      ]
-
-      deps = [
-        ":skia",
-        "//flutter/fml",
-        "//third_party/swiftshader_flutter:swiftshader_gl",
-      ]
-    }
-  }
-
   test_fixtures("testing_fixtures") {
     fixtures = []
   }
@@ -205,7 +185,7 @@ if (enable_unittests) {
 # is exercised on platforms where Metal itself is available.
 #
 # On iOS, this is enabled to allow for Metal tests to run within a test app
-if (enable_unittests || is_ios) {
+if (is_mac || is_ios) {
   source_set("metal") {
     if (shell_enable_metal) {
       sources = [
@@ -231,3 +211,27 @@ if (enable_unittests || is_ios) {
     testonly = true
   }
 }
+
+# We only use SwiftShader on unittests and
+# SwiftShader only supports x86/x86_64
+use_swiftshader =
+    enable_unittests && (target_cpu == "x86" || target_cpu == "x64")
+
+source_set("opengl") {
+  testonly = true
+
+  sources = [
+    "test_gl_surface.cc",
+    "test_gl_surface.h",
+  ]
+
+  deps = [
+    ":skia",
+    "//flutter/fml",
+  ]
+
+  if (use_swiftshader) {
+    configs += [ "//third_party/swiftshader_flutter:swiftshader_config" ]
+    deps += [ "//third_party/swiftshader_flutter:swiftshader_gl" ]
+  }
+}