Ozone integration.

ui/ozone/common/egl_util.cc

+// 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.
+
+#include "ui/ozone/common/egl_util.h"
+
+#include "base/files/file_path.h"
+
+namespace ui {
+namespace {
+
+const char kDefaultEglSoname[] = "libEGL.so.1";
+const char kDefaultGlesSoname[] = "libGLESv2.so.2";
+
+}  // namespace
+
+bool LoadDefaultEGLGLES2Bindings(
+    SurfaceFactoryOzone::AddGLLibraryCallback add_gl_library,
+    SurfaceFactoryOzone::SetGLGetProcAddressProcCallback
+        set_gl_get_proc_address) {
+  return LoadEGLGLES2Bindings(add_gl_library, set_gl_get_proc_address,
+                              kDefaultEglSoname, kDefaultGlesSoname);
+}
+
+bool LoadEGLGLES2Bindings(
+    SurfaceFactoryOzone::AddGLLibraryCallback add_gl_library,
+    SurfaceFactoryOzone::SetGLGetProcAddressProcCallback
+        set_gl_get_proc_address,
+    const char* egl_library_name,
+    const char* gles_library_name) {
+  base::NativeLibraryLoadError error;
+  base::NativeLibrary gles_library =
+      base::LoadNativeLibrary(base::FilePath(gles_library_name), &error);
+  if (!gles_library) {
+    LOG(WARNING) << "Failed to load GLES library: " << error.ToString();
+    return false;
+  }
+
+  base::NativeLibrary egl_library =
+      base::LoadNativeLibrary(base::FilePath(egl_library_name), &error);
+  if (!egl_library) {
+    LOG(WARNING) << "Failed to load EGL library: " << error.ToString();
+    base::UnloadNativeLibrary(gles_library);
+    return false;
+  }
+
+  SurfaceFactoryOzone::GLGetProcAddressProc get_proc_address =
+      reinterpret_cast<SurfaceFactoryOzone::GLGetProcAddressProc>(
+          base::GetFunctionPointerFromNativeLibrary(egl_library,
+                                                    "eglGetProcAddress"));
+  if (!get_proc_address) {
+    LOG(ERROR) << "eglGetProcAddress not found.";
+    base::UnloadNativeLibrary(egl_library);
+    base::UnloadNativeLibrary(gles_library);
+    return false;
+  }
+
+  set_gl_get_proc_address.Run(get_proc_address);
+  add_gl_library.Run(egl_library);
+  add_gl_library.Run(gles_library);
+
+  return true;
+}
+
+}  // namespace ui