Add GN build for parts of gpu and ozone.

ui/gl/BUILD.gn

Index: ui/gl/BUILD.gn
diff --git a/ui/gl/BUILD.gn b/ui/gl/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..70c5ad4e2a7d08f28227efc3e81f1d97e2b33751
--- /dev/null
+++ b/ui/gl/BUILD.gn
@@ -0,0 +1,289 @@
+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/ui.gni")
+
+gl_binding_output_dir = target_gen_dir
+
+config("gl_config") {
+  if (use_x11) {
+    defines = [ "GL_GLEXT_PROTOTYPES" ]
+  }
+}
+
+component("gl") {
+  output_name = "gl_wrapper"  # Avoid colliding with OS X"s libGL.dylib.
+
+  sources = [
+    "android/gl_jni_registrar.cc",
+    "android/gl_jni_registrar.h",
+    "android/scoped_java_surface.cc",
+    "android/scoped_java_surface.h",
+    "android/surface_texture.cc",
+    "android/surface_texture.h",
+    "android/surface_texture_listener.cc",
+    "android/surface_texture_listener.h",
+    "android/surface_texture_tracker.cc",
+    "android/surface_texture_tracker.h",
+    "gl_bindings.h",
+    "gl_bindings_skia_in_process.cc",
+    "gl_bindings_skia_in_process.h",
+    "gl_context.cc",
+    "gl_context.h",
+    "gl_context_android.cc",
+    "gl_context_mac.mm",
+    "gl_context_osmesa.cc",
+    "gl_context_osmesa.h",
+    "gl_context_stub.cc",
+    "gl_context_stub.h",
+    "gl_context_stub_with_extensions.cc",
+    "gl_context_stub_with_extensions.h",
+    "gl_context_win.cc",
+    "gl_context_x11.cc",
+    "gl_export.h",
+    "gl_fence.cc",
+    "gl_fence.h",
+    "gl_gl_api_implementation.cc",
+    "gl_gl_api_implementation.h",
+    "gl_image.cc",
+    "gl_image.h",
+    "gl_image_android.cc",
+    "gl_image_mac.cc",
+    "gl_image_shm.cc",
+    "gl_image_shm.h",
+    "gl_image_stub.cc",
+    "gl_image_stub.h",
+    "gl_image_win.cc",
+    "gl_image_x11.cc",
+    "gl_implementation.cc",
+    "gl_implementation.h",
+    "gl_implementation_android.cc",
+    "gl_implementation_mac.cc",
+    "gl_implementation_win.cc",
+    "gl_implementation_x11.cc",
+    "gl_osmesa_api_implementation.cc",
+    "gl_osmesa_api_implementation.h",
+    "gl_share_group.cc",
+    "gl_share_group.h",
+    "gl_state_restorer.cc",
+    "gl_state_restorer.h",
+    "gl_surface.cc",
+    "gl_surface.h",
+    "gl_surface_android.cc",
+    "gl_surface_mac.cc",
+    "gl_surface_stub.cc",
+    "gl_surface_stub.h",
+    "gl_surface_win.cc",
+    "gl_surface_x11.cc",
+    "gl_surface_osmesa.cc",
+    "gl_surface_osmesa.h",
+    "gl_switches.cc",
+    "gl_switches.h",
+    "gl_version_info.cc",
+    "gl_version_info.h",
+    "gpu_switching_manager.cc",
+    "gpu_switching_manager.h",
+    "io_surface_support_mac.cc",
+    "io_surface_support_mac.h",
+    "scoped_binders.cc",
+    "scoped_binders.h",
+    "scoped_make_current.cc",
+    "scoped_make_current.h",
+    "sync_control_vsync_provider.cc",
+    "sync_control_vsync_provider.h",
+    "$gl_binding_output_dir/gl_bindings_autogen_gl.cc",
+    "$gl_binding_output_dir/gl_bindings_autogen_gl.h",
+    "$gl_binding_output_dir/gl_bindings_autogen_osmesa.cc",
+    "$gl_binding_output_dir/gl_bindings_autogen_osmesa.h",
+  ]
+
+  defines = [ "GL_IMPLEMENTATION" ]
+
+  include_dirs = [
+    "//third_party/switfshader/include",
+    "//third_party/khronos",
+    "//third_party/mesa/src/include",
+    gl_binding_output_dir,
+  ]
+
+  all_dependent_configs = [ ":gl_config" ]
+
+  deps = [
+    ":generate_gl_bindings",
+    "//base",
+    "//base/third_party/dynamic_annotations",
+    "//gpu/command_buffer:gles2_utils",
+    "//skia",
+    # TODO(GYP) hook up once this is converted.
+    # Also uncomment forward statement below.
+    #"//third_party/mesa:mesa_headers",
+    "//ui/gfx",
+    "//ui/gfx/geometry",
+  ]
+
+  # TODO(GYP) hook up once this is converted.
+  #forward_dependent_configs_from = [ "//third_party/mesa:mesa_headers" ]
+
+  if (is_win || is_android || is_linux) {
+    sources += [
+      "egl_util.cc",
+      "egl_util.h",
+      "gl_context_egl.cc",
+      "gl_context_egl.h",
+      "gl_image_egl.cc",
+      "gl_image_egl.h",
+      "gl_surface_egl.cc",
+      "gl_surface_egl.h",
+      "$gl_binding_output_dir/gl_bindings_autogen_egl.cc",
+      "$gl_binding_output_dir/gl_bindings_autogen_egl.h",
+    ]
+  }
+  if (is_android || is_linux) {
+    sources += [
+      "gl_implementation_osmesa.cc",
+      "gl_implementation_osmesa.h",
+    ]
+  }
+  if (use_x11) {
+    sources += [
+      "gl_context_glx.cc",
+      "gl_context_glx.h",
+      "gl_glx_api_implementation.cc",
+      "gl_glx_api_implementation.h",
+      "gl_image_glx.cc",
+      "gl_image_glx.h",
+      "gl_surface_glx.cc",
+      "gl_surface_glx.h",
+      "gl_egl_api_implementation.cc",
+      "gl_egl_api_implementation.h",
+      "$gl_binding_output_dir/gl_bindings_autogen_glx.cc",
+      "$gl_binding_output_dir/gl_bindings_autogen_glx.h",
+    ]
+
+    configs += [
+      "//build/config/linux:x11",
+      "//build/config/linux:xcomposite",
+      "//build/config/linux:xext",
+    ]
+
+    deps += [
+      "//ui/gfx/x",
+    ]
+  }
+  if (is_win) {
+    sources += [
+      "gl_context_wgl.cc",
+      "gl_context_wgl.h",
+      "gl_egl_api_implementation.cc",
+      "gl_egl_api_implementation.h",
+      "gl_surface_wgl.cc",
+      "gl_surface_wgl.h",
+      "gl_wgl_api_implementation.cc",
+      "gl_wgl_api_implementation.h",
+      "$gl_binding_output_dir/gl_bindings_autogen_wgl.cc",
+      "$gl_binding_output_dir/gl_bindings_autogen_wgl.h",
+    ]
+
+    libs = [ "dwmapi.lib" ]
+    ldflags = [ "/DELAYLOAD:dwmapi.dll" ]
+  }
+  if (is_mac) {
+    sources += [
+      "gl_context_cgl.cc",
+      "gl_context_cgl.h",
+      "gl_image_io_surface.cc",
+      "gl_image_io_surface.h",
+      "gl_surface_cgl.cc",
+      "gl_surface_cgl.h",
+      "scoped_cgl.cc",
+      "scoped_cgl.h",
+    ]
+
+    libs = [ "OpenGL.framework" ]
+  }
+  if (is_android) {
+    sources += [
+      "gl_egl_api_implementation.cc",
+      "gl_egl_api_implementation.h",
+      "gl_image_android_native_buffer.cc",
+      "gl_image_android_native_buffer.h",
+      "gl_image_surface_texture.cc",
+      "gl_image_surface_texture.h",
+    ]
+
+    defines += [
+      "GL_GLEXT_PROTOTYPES",
+      "EGL_EGLEXT_PROTOTYPES",
+    ]
+
+    libs = [ "android" ]
+  }
+  if (use_ozone) {
+    sources += [
+      "gl_context_ozone.cc",
+      "gl_image_ozone.cc",
+      "gl_implementation_ozone.cc",
+      "gl_surface_ozone.cc",
+    ]
+    deps += [
+      "//ui/gfx/ozone",
+      "//ui/ozone",
+    ]
+  }
+
+  # TODO(GYP) enable this dependency once its written.
+  #if (is_android && !android_webview_build) {
+  #  deps += [ "//ui/android:ui_java" ]
+  #}
+}
+
+action("generate_gl_bindings") {
+  script = "generate_bindings.py"
+
+  # TODO(brettw) make this dynamic. The GYP version calls "generate_bindings.py
+  # --inputs" to get the list here. What should happen is that the script
+  # should generate a .d file, which we should declare here. That will
+  # eliminate the need bot both hardcoding the list here or calling the script
+  # during GN-time.
+  source_prereqs = [
+    "EGL/eglextchromium.h",
+    "GL/glextchromium.h",
+    "//third_party/mesa/src/include/GL/glext.h",
+    "//third_party/khronos/GLES2/gl2ext.h",
+    "//gpu/GLES2/gl2chromium.h",
+    "//gpu/GLES2/gl2extchromium.h",
+    "//third_party/khronos/EGL/eglext.h",
+    "//third_party/mesa/src/include/GL/wglext.h",
+    "//third_party/mesa/src/include/GL/glx.h",
+    "//third_party/mesa/src/include/GL/glxext.h",
+  ]
+
+  outputs = [
+    "$gl_binding_output_dir/gl_bindings_autogen_egl.cc",
+    "$gl_binding_output_dir/gl_bindings_autogen_egl.h",
+    "$gl_binding_output_dir/gl_bindings_api_autogen_egl.h",
+    "$gl_binding_output_dir/gl_bindings_autogen_gl.cc",
+    "$gl_binding_output_dir/gl_bindings_autogen_gl.h",
+    "$gl_binding_output_dir/gl_bindings_api_autogen_gl.h",
+    "$gl_binding_output_dir/gl_bindings_autogen_glx.cc",
+    "$gl_binding_output_dir/gl_bindings_autogen_glx.h",
+    "$gl_binding_output_dir/gl_bindings_api_autogen_glx.h",
+    "$gl_binding_output_dir/gl_bindings_autogen_mock.cc",
+    "$gl_binding_output_dir/gl_bindings_autogen_mock.h",
+    "$gl_binding_output_dir/gl_bindings_autogen_osmesa.cc",
+    "$gl_binding_output_dir/gl_bindings_autogen_osmesa.h",
+    "$gl_binding_output_dir/gl_bindings_api_autogen_osmesa.h",
+    "$gl_binding_output_dir/gl_bindings_autogen_wgl.cc",
+    "$gl_binding_output_dir/gl_bindings_autogen_wgl.h",
+    "$gl_binding_output_dir/gl_bindings_api_autogen_wgl.h",
+    "$gl_binding_output_dir/gl_mock_autogen_gl.h",
+  ]
+
+  args = [
+    "--header-paths=" +
+        rebase_path("//third_party/khronos", root_build_dir) + ":" +
+        rebase_path("//third_party/mesa/src/include", root_build_dir),
+    rebase_path(gl_binding_output_dir, root_build_dir),
+  ]
+}