diff -r 000000000000 -r 6474c204b198 gfx/layers/d3d10/ColorLayerD3D10.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/layers/d3d10/ColorLayerD3D10.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,60 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "ColorLayerD3D10.h"
+
+#include "../d3d9/Nv3DVUtils.h"
+
+namespace mozilla {
+namespace layers {
+
+ColorLayerD3D10::ColorLayerD3D10(LayerManagerD3D10 *aManager)
+  : ColorLayer(aManager, nullptr)
+  , LayerD3D10(aManager)
+{
+  mImplData = static_cast<LayerD3D10*>(this);
+}
+
+Layer*
+ColorLayerD3D10::GetLayer()
+{
+  return this;
+}
+
+void
+ColorLayerD3D10::RenderLayer()
+{
+  float color[4];
+  // output color is premultiplied, so we need to adjust all channels.
+  // mColor is not premultiplied.
+  float opacity = GetEffectiveOpacity() * mColor.a;
+  color[0] = (float)(mColor.r * opacity);
+  color[1] = (float)(mColor.g * opacity);
+  color[2] = (float)(mColor.b * opacity);
+  color[3] = opacity;
+
+  const gfx::Matrix4x4& transform = GetEffectiveTransform();
+  void* raw = &const_cast<gfx::Matrix4x4&>(transform)._11;
+  effect()->GetVariableByName("mLayerTransform")->SetRawValue(raw, 0, 64);
+  effect()->GetVariableByName("fLayerColor")->AsVector()->SetFloatVector(color);
+
+  ID3D10EffectTechnique *technique = SelectShader(SHADER_SOLID | LoadMaskTexture());
+
+  nsIntRect bounds = GetBounds();
+
+  effect()->GetVariableByName("vLayerQuad")->AsVector()->SetFloatVector(
+    ShaderConstantRectD3D10(
+      (float)bounds.x,
+      (float)bounds.y,
+      (float)bounds.width,
+      (float)bounds.height)
+    );
+
+  technique->GetPassByIndex(0)->Apply(0);
+  device()->Draw(4, 0);
+}
+
+} /* layers */
+} /* mozilla */