Add debug code, unapply me later

gfx/layers/ipc/CompositorParent.cpp

@@ -244,6 +244,7 @@ CompositorParent::AsyncRender()
 void
 CompositorParent::ShadowLayersUpdated()
 {
+  printf_stderr("ShadowLayersUpdated\n");
   const nsTArray<PLayersParent*>& shadowParents = ManagedPLayersParent();
   NS_ABORT_IF_FALSE(shadowParents.Length() <= 1,
                     "can only support at most 1 ShadowLayersParent");

gfx/layers/opengl/LayerManagerOGL.cpp

@@ -564,6 +564,7 @@ bool LayerManagerOGL::sDrawFPS = false;
 void
 LayerManagerOGL::FPSState::DrawFPS(GLContext* context, CopyProgram* copyprog)
 {
+  printf_stderr("draw fps\n");
   fcount++;
 
   int rate = 30;
@@ -760,7 +761,6 @@ LayerManagerOGL::BindAndDrawQuadWithTextureRect(LayerProgram *aProg,
 void
 LayerManagerOGL::Render()
 {
-  printf_stderr("render\n");
   SAMPLE_LABEL("LayerManagerOGL", "Render");
   if (mDestroyed) {
     NS_WARNING("Call on destroyed layer manager");
@@ -779,6 +779,8 @@ LayerManagerOGL::Render()
   if (width == 0 || height == 0)
     return;
 
+  printf_stderr("render %i, %i\n", width, height);
+
   // If the widget size changed, we have to force a MakeCurrent
   // to make sure that GL sees the updated widget size.
   if (mWidgetSize.width != width ||
@@ -812,7 +814,18 @@ LayerManagerOGL::Render()
 
   mGLContext->fEnable(LOCAL_GL_SCISSOR_TEST);
 
+  static int i = 0;
+  i++;
+  i=i%3;
+  if( i == 0 ) {
+  mGLContext->fClearColor(1.0, 0.0, 0.0, 0.0);
+  } else if( i == 1 ) {
   mGLContext->fClearColor(0.0, 0.0, 0.0, 0.0);
+  } else if( i == 2 ) {
+  mGLContext->fClearColor(1.0, 1.0, 0.0, 0.0);
+  } else {
+  mGLContext->fClearColor(0.0, 1.0, 0.0, 0.0);
+  }
   mGLContext->fClear(LOCAL_GL_COLOR_BUFFER_BIT | LOCAL_GL_DEPTH_BUFFER_BIT);
 
   // Render our layers.

gfx/layers/opengl/ThebesLayerOGL.cpp

@@ -907,6 +907,7 @@ ShadowThebesLayerOGL::Swap(const ThebesBuffer& aNewFront,
                            OptionalThebesBuffer* aReadOnlyFront,
                            nsIntRegion* aFrontUpdatedRegion)
 {
+  printf_stderr("Thebes Swap\n");
   if (!mDestroyed) {
     if (!mBuffer) {
       mBuffer = new ShadowBufferOGL(this);

modules/libpref/src/init/all.js

@@ -3328,7 +3328,7 @@ pref("layers.acceleration.disabled", false);
 // Whether to force acceleration on, ignoring blacklists.
 pref("layers.acceleration.force-enabled", false);
 
-pref("layers.acceleration.draw-fps", false);
+pref("layers.acceleration.draw-fps", true);
 
 pref("layers.offmainthreadcomposition.enabled", false);