gpu: Add extension check when initializing MailboxSync

And do not enable accelerated canvas in webview if extensions are
missing.

BUG=332146

Review URL: https://codereview.chromium.org/196653019

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@257295 0039d316-1c4b-4281-b951-d872f2087c98

android_webview/browser/aw_browser_main_parts.cc

@@ -8,12 +8,15 @@
 #include "android_webview/browser/aw_result_codes.h"
 #include "base/android/build_info.h"
 #include "base/android/memory_pressure_listener_android.h"
+#include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/path_service.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/common/content_client.h"
+#include "content/public/common/content_switches.h"
 #include "content/public/common/result_codes.h"
 #include "content/public/common/url_utils.h"
+#include "gpu/command_buffer/service/mailbox_synchronizer.h"
 #include "net/android/network_change_notifier_factory_android.h"
 #include "net/base/network_change_notifier.h"
 #include "ui/base/l10n/l10n_util_android.h"
@@ -59,6 +62,11 @@ int AwBrowserMainParts::PreCreateThreads() {
 }
 
 void AwBrowserMainParts::PreMainMessageLoopRun() {
+  if (!gpu::gles2::MailboxSynchronizer::Initialize()) {
+    CommandLine::ForCurrentProcess()->AppendSwitch(
+        switches::kDisableAccelerated2dCanvas);
+  }
+
   browser_context_->PreMainMessageLoopRun();
   // This is needed for WebView Classic backwards compatibility
   // See crbug.com/298495

android_webview/lib/main/aw_main_delegate.cc

@@ -25,7 +25,6 @@
 #include "content/public/common/content_switches.h"
 #include "gpu/command_buffer/client/gl_in_process_context.h"
 #include "gpu/command_buffer/service/in_process_command_buffer.h"
-#include "gpu/command_buffer/service/mailbox_synchronizer.h"
 #include "media/base/media_switches.h"
 #include "webkit/common/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h"
 
@@ -67,8 +66,6 @@ bool AwMainDelegate::BasicStartupComplete(int* exit_code) {
   cl->AppendSwitch(switches::kDisableExperimentalWebGL);
   cl->AppendSwitch(switches::kDisableSharedWorkers);
 
-  if (!gpu::gles2::MailboxSynchronizer::Initialize())
-    cl->AppendSwitch(switches::kDisableAccelerated2dCanvas);
 
   // File system API not supported (requires some new API; internal bug 6930981)
   cl->AppendSwitch(switches::kDisableFileSystem);

gpu/command_buffer/service/mailbox_synchronizer.cc

@@ -7,6 +7,7 @@
 #include "base/bind.h"
 #include "gpu/command_buffer/service/mailbox_manager.h"
 #include "gpu/command_buffer/service/texture_manager.h"
+#include "ui/gl/gl_implementation.h"
 
 namespace gpu {
 namespace gles2 {
@@ -20,6 +21,29 @@ MailboxSynchronizer* g_instance = NULL;
 // static
 bool MailboxSynchronizer::Initialize() {
   DCHECK(!g_instance);
+  DCHECK(gfx::GetGLImplementation() != gfx::kGLImplementationNone)
+      << "GL bindings not initialized";
+  switch (gfx::GetGLImplementation()) {
+    case gfx::kGLImplementationMockGL:
+      break;
+    case gfx::kGLImplementationEGLGLES2:
+#if !defined(OS_MACOSX)
+      {
+        if (!gfx::g_driver_egl.ext.b_EGL_KHR_image_base ||
+            !gfx::g_driver_egl.ext.b_EGL_KHR_gl_texture_2D_image ||
+            !gfx::g_driver_gl.ext.b_GL_OES_EGL_image ||
+            !gfx::g_driver_egl.ext.b_EGL_KHR_fence_sync) {
+          LOG(WARNING) << "MailboxSync not supported due to missing EGL "
+                          "image/fence support";
+          return false;
+        }
+      }
+      break;
+#endif
+    default:
+      NOTREACHED();
+      return false;
+  }
   g_instance = new MailboxSynchronizer;
   return true;
 }

gpu/command_buffer/service/texture_definition.cc

@@ -120,11 +120,10 @@ scoped_refptr<NativeImageBufferEGL> NativeImageBufferEGL::Create(
   DCHECK_NE(EGL_NO_DISPLAY, egl_display);
   DCHECK(glIsTexture(texture_id));
 
-  // TODO: Need to generate and check EGL_KHR_gl_texture_2D_image
-  if (!gfx::g_driver_egl.ext.b_EGL_KHR_image_base ||
-      !gfx::g_driver_gl.ext.b_GL_OES_EGL_image) {
-    return NULL;
-  }
+  DCHECK(gfx::g_driver_egl.ext.b_EGL_KHR_image_base &&
+         gfx::g_driver_egl.ext.b_EGL_KHR_gl_texture_2D_image &&
+         gfx::g_driver_gl.ext.b_GL_OES_EGL_image &&
+         gfx::g_driver_egl.ext.b_EGL_KHR_fence_sync);
 
   const EGLint egl_attrib_list[] = {
       EGL_GL_TEXTURE_LEVEL_KHR, 0, EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, EGL_NONE};

ui/gl/generate_bindings.py

@@ -906,7 +906,8 @@
       'EGLDisplay dpy, EGLConfig config, EGLint attribute, EGLint* value', },
 { 'return_type': 'EGLImageKHR',
   'versions': [{ 'name': 'eglCreateImageKHR',
-                 'extensions': ['EGL_KHR_image_base'] }],
+                 'extensions':
+                     ['EGL_KHR_image_base', 'EGL_KHR_gl_texture_2D_image'] }],
   'arguments':
       'EGLDisplay dpy, EGLContext ctx, EGLenum target, EGLClientBuffer buffer, '
       'const EGLint* attrib_list' },