Plugin API to allow for y-axis inversion during rendering.

bug: 3393314
Change-Id: I913a6c073fe9ba56c14cdbcaa523b6e5a5af5219

2 files changed, 27 insertions, 0 deletions

diff --git a/WebKit/android/plugins/ANPOpenGLInterface.cpp b/WebKit/android/plugins/ANPOpenGLInterface.cpp
index 55eb3e0..8f5f9b4 100644
--- a/WebKit/android/plugins/ANPOpenGLInterface.cpp
+++ b/WebKit/android/plugins/ANPOpenGLInterface.cpp
@@ -30,6 +30,11 @@
 #include "PluginView.h"
 #include "PluginWidgetAndroid.h"
 #include "MediaLayer.h"
+#include "WebViewCore.h"
+#include "Frame.h"
+#include "Page.h"
+#include "Chrome.h"
+#include "ChromeClient.h"
 
 using namespace android;
 
@@ -84,6 +89,21 @@ static void anp_releaseTexture(NPP instance, const ANPTextureInfo* textureInfo)
     texture->producerReleaseAndSwap();
 }
 
+static void anp_invertPluginContent(NPP instance, bool isContentInverted) {
+    WebCore::PluginView* pluginView = pluginViewForInstance(instance);
+    PluginWidgetAndroid* pluginWidget = pluginView->platformPluginWidget();
+    WebCore::MediaLayer* mediaLayer = pluginWidget->getLayer();
+
+    mediaLayer->invertContents(isContentInverted);
+
+    //force the layer to sync to the UI thread
+    WebViewCore* wvc = pluginWidget->webViewCore();
+    if (wvc)
+        wvc->mainFrame()->page()->chrome()->client()->scheduleCompositingLayerSync();
+}
+
+
+
 ///////////////////////////////////////////////////////////////////////////////
 
 #define ASSIGN(obj, name)   (obj)->name = anp_##name
@@ -94,4 +114,5 @@ void ANPOpenGLInterfaceV0_Init(ANPInterface* v) {
     ASSIGN(i, acquireContext);
     ASSIGN(i, lockTexture);
     ASSIGN(i, releaseTexture);
+    ASSIGN(i, invertPluginContent);
 }
diff --git a/WebKit/android/plugins/ANPOpenGL_npapi.h b/WebKit/android/plugins/ANPOpenGL_npapi.h
index bfca0dd..5aabbc4 100644
--- a/WebKit/android/plugins/ANPOpenGL_npapi.h
+++ b/WebKit/android/plugins/ANPOpenGL_npapi.h
@@ -52,6 +52,12 @@ struct ANPOpenGLInterfaceV0 : ANPInterface {
     /**
      */
     void (*releaseTexture)(NPP instance, const ANPTextureInfo*);
+
+    /**
+     * Invert the contents of the plugin on the y-axis.
+     * default is to not be inverted (i.e. use OpenGL coordinates)
+     */
+    void (*invertPluginContent)(NPP instance, bool isContentInverted);
 };
 
 #endif //ANPOpenGL_npapi_H