Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
       2             :  * This Source Code Form is subject to the terms of the Mozilla Public
       3             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       4             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       5             : 
       6             : #include "WebRenderTextLayer.h"
       7             : 
       8             : #include "gfxPrefs.h"
       9             : #include "LayersLogging.h"
      10             : #include "mozilla/webrender/WebRenderTypes.h"
      11             : #include "mozilla/layers/ScrollingLayersHelper.h"
      12             : #include "mozilla/layers/WebRenderBridgeChild.h"
      13             : 
      14             : #include "mozilla/gfx/2D.h"
      15             : 
      16             : namespace mozilla {
      17             : namespace layers {
      18             : 
      19             : using namespace mozilla::gfx;
      20             : 
      21             : void
      22           0 : WebRenderTextLayer::RenderLayer(wr::DisplayListBuilder& aBuilder,
      23             :                                 const StackingContextHelper& aSc)
      24             : {
      25           0 :     if (mBounds.IsEmpty()) {
      26           0 :         return;
      27             :     }
      28             : 
      29           0 :     ScrollingLayersHelper scroller(this, aBuilder, aSc);
      30             : 
      31             :     LayerRect rect = LayerRect::FromUnknownRect(
      32             :         // I am not 100% sure this is correct, but it probably is. Because:
      33             :         // the bounds are in layer space, and when gecko composites layers it
      34             :         // applies the transform to the layer before compositing. However with
      35             :         // WebRender compositing, we don't pass the transform on this layer to
      36             :         // WR, so WR has no way of knowing about the transformed bounds unless
      37             :         // we apply it here. The glyphs that we push to WR should already be
      38             :         // taking the transform into account.
      39           0 :         GetTransform().TransformBounds(IntRectToRect(mBounds))
      40           0 :     );
      41           0 :     DumpLayerInfo("TextLayer", rect);
      42             : 
      43           0 :     WrBridge()->PushGlyphs(aBuilder, mGlyphs, mFont, aSc, rect, rect);
      44             : }
      45             : 
      46             : } // namespace layers
      47             : } // namespace mozilla