Implemented async flushes for Pepper 3D.

Added waitForProgress field to NPDeviceContext3D to select between a flush (that pushes more work to the GPU process and waits for at least some of it to have been completed) and getting the current state as quickly as possible. The previous method of checking to see if the put offset had advanced was incorrect.

TEST=trybots
BUG=none

Review URL: http://codereview.chromium.org/561058

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@38540 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 20 insertions, 0 deletions

diff --git a/webkit/tools/pepper_test_plugin/plugin_object.cc b/webkit/tools/pepper_test_plugin/plugin_object.cc
index 6880099..4c1b2a6 100644
--- a/webkit/tools/pepper_test_plugin/plugin_object.cc
+++ b/webkit/tools/pepper_test_plugin/plugin_object.cc
@@ -438,6 +438,14 @@ void PluginObject::Destroy3D() {
 #endif  // INDEPENDENT_PLUGIN
 }
 
+namespace {
+void AsyncFlushCallback(NPP npp,
+                        NPDeviceContext* context,
+                        NPError error,
+                        void* user_data) {
+}
+}
+
 void PluginObject::Draw3D() {
 #if !defined(INDEPENDENT_PLUGIN)
   if (!pglMakeCurrent(pgl_context_) && pglGetError() == PGL_CONTEXT_LOST) {
@@ -451,6 +459,18 @@ void PluginObject::Draw3D() {
   pglSwapBuffers();
   pglMakeCurrent(NULL);
 
+  // Async flushes just to see them working.
+  context3d_.waitForProgress = true;
+  device3d_->flushContext(npp_,
+                          &context3d_,
+                          AsyncFlushCallback,
+                          reinterpret_cast<void*>(0x3D1));
+  context3d_.waitForProgress = false;
+  device3d_->flushContext(npp_,
+                          &context3d_,
+                          AsyncFlushCallback,
+                          reinterpret_cast<void*>(0x3D2));
+
   // Schedule another call to Draw.
   browser->pluginthreadasynccall(npp_, Draw3DCallback, this);
 #endif  // INDEPENDENT_PLUGIN