[4/5] Add translated rasterization support for PictureLayerTilingSet & below

cc/layers/picture_layer_impl.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/layers/picture_layer_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 259 matching lines @@
           width = DebugColors::OOMTileBorderWidth(device_scale_factor);
         } else if (iter->draw_info().has_compressed_resource()) {
           color = DebugColors::CompressedTileBorderColor();
           width = DebugColors::CompressedTileBorderWidth(device_scale_factor);
         } else if (iter.resolution() == HIGH_RESOLUTION) {
           color = DebugColors::HighResTileBorderColor();
           width = DebugColors::HighResTileBorderWidth(device_scale_factor);
         } else if (iter.resolution() == LOW_RESOLUTION) {
           color = DebugColors::LowResTileBorderColor();
           width = DebugColors::LowResTileBorderWidth(device_scale_factor);
-        } else if (iter->contents_scale() > max_contents_scale) {
+        } else if (iter->contents_scale_key() > max_contents_scale) {
           color = DebugColors::ExtraHighResTileBorderColor();
           width = DebugColors::ExtraHighResTileBorderWidth(device_scale_factor);
         } else {
           color = DebugColors::ExtraLowResTileBorderColor();
           width = DebugColors::ExtraLowResTileBorderWidth(device_scale_factor);
         }
       } else {
         color = DebugColors::MissingTileBorderColor();
         width = DebugColors::MissingTileBorderWidth(device_scale_factor);
       }
@@ skipping 47 matching lines @@
       switch (draw_info.mode()) {
         case TileDrawInfo::RESOURCE_MODE: {
           gfx::RectF texture_rect = iter.texture_rect();
 
           // The raster_contents_scale_ is the best scale that the layer is
           // trying to produce, even though it may not be ideal. Since that's
           // the best the layer can promise in the future, consider those as
           // complete. But if a tile is ideal scale, we don't want to consider
           // it incomplete and trying to replace it with a tile at a worse
           // scale.
-          if (iter->contents_scale() != raster_contents_scale_ &&
-              iter->contents_scale() != ideal_contents_scale_ &&
+          if (iter->contents_scale_key() != raster_contents_scale_ &&
+              iter->contents_scale_key() != ideal_contents_scale_ &&
               geometry_rect.Intersects(scaled_viewport_for_tile_priority)) {
             append_quads_data->num_incomplete_tiles++;
           }
 
           TileDrawQuad* quad =
               render_pass->CreateAndAppendDrawQuad<TileDrawQuad>();
           quad->SetNew(shared_quad_state, geometry_rect, opaque_rect,
                        visible_geometry_rect, draw_info.resource_id(),
                        texture_rect, draw_info.resource_size(),
                        draw_info.contents_swizzled(), nearest_neighbor_);
@@ skipping 279 matching lines @@
 
   DCHECK(!RasterSourceUsesLCDText());
 }
 
 bool PictureLayerImpl::RasterSourceUsesLCDText() const {
   return raster_source_ ? raster_source_->CanUseLCDText()
                         : layer_tree_impl()->settings().can_use_lcd_text;
 }
 
 void PictureLayerImpl::NotifyTileStateChanged(const Tile* tile) {
-  if (layer_tree_impl()->IsActiveTree()) {
-    gfx::Rect layer_damage_rect = gfx::ScaleToEnclosingRect(
-        tile->content_rect(), 1.f / tile->contents_scale());
-    AddDamageRect(layer_damage_rect);
-  }
+  if (layer_tree_impl()->IsActiveTree())
+    AddDamageRect(tile->enclosing_layer_rect());
   if (tile->draw_info().NeedsRaster()) {
     PictureLayerTiling* tiling =
-        tilings_->FindTilingWithScaleKey(tile->contents_scale());
+        tilings_->FindTilingWithScaleKey(tile->contents_scale_key());
     if (tiling)
       tiling->set_all_tiles_done(false);
   }
 }
 
 SimpleEnclosedRegion PictureLayerImpl::VisibleOpaqueRegion() const {
   if (use_transformed_rasterization_)
     return SimpleEnclosedRegion();
   return LayerImpl::VisibleOpaqueRegion();
 }
@@ skipping 58 matching lines @@
   if (PictureLayerImpl* twin_layer = GetPendingOrActiveTwinLayer())
     return &twin_layer->invalidation_;
   return nullptr;
 }
 
 const PictureLayerTiling* PictureLayerImpl::GetPendingOrActiveTwinTiling(
     const PictureLayerTiling* tiling) const {
   PictureLayerImpl* twin_layer = GetPendingOrActiveTwinLayer();
   if (!twin_layer)
     return nullptr;
-  return twin_layer->tilings_->FindTilingWithScaleKey(tiling->contents_scale());
+  const PictureLayerTiling* twin_tiling =
+      twin_layer->tilings_->FindTilingWithScaleKey(
+          tiling->contents_scale_key());
+  DCHECK(tiling->raster_transform().translation() == gfx::Vector2dF());
+  DCHECK(!twin_tiling ||
+         twin_tiling->raster_transform().translation() == gfx::Vector2dF());
+  return twin_tiling;
 }
 
 bool PictureLayerImpl::RequiresHighResToDraw() const {
   return layer_tree_impl()->RequiresHighResToDraw();
 }
 
 gfx::Rect PictureLayerImpl::GetEnclosingRectInTargetSpace() const {
   return GetScaledEnclosingRectInTargetSpace(MaximumTilingContentsScale());
 }
 
@@ skipping 140 matching lines @@
 
   use_transformed_rasterization_ = use;
   NoteLayerPropertyChanged();
 }
 
 PictureLayerTiling* PictureLayerImpl::AddTiling(float contents_scale) {
   DCHECK(CanHaveTilings());
   DCHECK_GE(contents_scale, MinimumContentsScale());
   DCHECK_LE(contents_scale, MaximumContentsScale());
   DCHECK(raster_source_->HasRecordings());
-  return tilings_->AddTiling(contents_scale, raster_source_);
+  return tilings_->AddTiling(ScaleTranslate2d(contents_scale, gfx::Vector2dF()),
+                             raster_source_);
 }
 
 void PictureLayerImpl::RemoveAllTilings() {
   tilings_->RemoveAllTilings();
   // If there are no tilings, then raster scales are no longer meaningful.
   ResetRasterScale();
 }
 
 void PictureLayerImpl::AddTilingsForRasterScale() {
   // Reset all resolution enums on tilings, we'll be setting new values in this
@@ skipping 501 matching lines @@
   }
 
   invalidation_.Union(invalidation);
   tilings_->UpdateTilingsForImplSideInvalidation(invalidation);
   SetNeedsPushProperties();
   TRACE_EVENT_END1("cc", "PictureLayerImpl::InvalidateRegionForImages",
                    "Invalidation", invalidation.ToString());
 }
 
 }  // namespace cc