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      1 // Copyright 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "cc/test/tiled_layer_test_common.h"
      6 
      7 namespace cc {
      8 
      9 FakeLayerUpdater::Resource::Resource(FakeLayerUpdater* layer,
     10                                      scoped_ptr<PrioritizedResource> texture)
     11     : LayerUpdater::Resource(texture.Pass()), layer_(layer) {
     12   bitmap_.setConfig(SkBitmap::kARGB_8888_Config, 10, 10);
     13   bitmap_.allocPixels();
     14 }
     15 
     16 FakeLayerUpdater::Resource::~Resource() {}
     17 
     18 void FakeLayerUpdater::Resource::Update(ResourceUpdateQueue* queue,
     19                                         gfx::Rect source_rect,
     20                                         gfx::Vector2d dest_offset,
     21                                         bool partial_update) {
     22   const gfx::Rect kRect(0, 0, 10, 10);
     23   ResourceUpdate upload = ResourceUpdate::Create(
     24       texture(), &bitmap_, kRect, kRect, gfx::Vector2d());
     25   if (partial_update)
     26     queue->AppendPartialUpload(upload);
     27   else
     28     queue->AppendFullUpload(upload);
     29 
     30   layer_->Update();
     31 }
     32 
     33 FakeLayerUpdater::FakeLayerUpdater() : prepare_count_(0), update_count_(0) {}
     34 
     35 FakeLayerUpdater::~FakeLayerUpdater() {}
     36 
     37 void FakeLayerUpdater::PrepareToUpdate(gfx::Rect content_rect,
     38                                        gfx::Size tile_size,
     39                                        float contents_width_scale,
     40                                        float contents_height_scale,
     41                                        gfx::Rect* resulting_opaque_rect) {
     42   prepare_count_++;
     43   last_update_rect_ = content_rect;
     44   if (!rect_to_invalidate_.IsEmpty()) {
     45     layer_->InvalidateContentRect(rect_to_invalidate_);
     46     rect_to_invalidate_ = gfx::Rect();
     47     layer_ = NULL;
     48   }
     49   *resulting_opaque_rect = opaque_paint_rect_;
     50 }
     51 
     52 void FakeLayerUpdater::SetRectToInvalidate(gfx::Rect rect,
     53                                            FakeTiledLayer* layer) {
     54   rect_to_invalidate_ = rect;
     55   layer_ = layer;
     56 }
     57 
     58 scoped_ptr<LayerUpdater::Resource> FakeLayerUpdater::CreateResource(
     59     PrioritizedResourceManager* manager) {
     60   return scoped_ptr<LayerUpdater::Resource>(
     61       new Resource(this, PrioritizedResource::Create(manager)));
     62 }
     63 
     64 FakeTiledLayerImpl::FakeTiledLayerImpl(LayerTreeImpl* tree_impl, int id)
     65     : TiledLayerImpl(tree_impl, id) {}
     66 
     67 FakeTiledLayerImpl::~FakeTiledLayerImpl() {}
     68 
     69 FakeTiledLayer::FakeTiledLayer(PrioritizedResourceManager* resource_manager)
     70     : TiledLayer(),
     71       fake_updater_(make_scoped_refptr(new FakeLayerUpdater)),
     72       resource_manager_(resource_manager) {
     73   SetTileSize(tile_size());
     74   SetTextureFormat(GL_RGBA);
     75   SetBorderTexelOption(LayerTilingData::NO_BORDER_TEXELS);
     76   // So that we don't get false positives if any of these
     77   // tests expect to return false from DrawsContent() for other reasons.
     78   SetIsDrawable(true);
     79 }
     80 
     81 FakeTiledLayerWithScaledBounds::FakeTiledLayerWithScaledBounds(
     82     PrioritizedResourceManager* resource_manager)
     83     : FakeTiledLayer(resource_manager) {}
     84 
     85 FakeTiledLayerWithScaledBounds::~FakeTiledLayerWithScaledBounds() {}
     86 
     87 FakeTiledLayer::~FakeTiledLayer() {}
     88 
     89 void FakeTiledLayer::SetNeedsDisplayRect(const gfx::RectF& rect) {
     90   last_needs_display_rect_ = rect;
     91   TiledLayer::SetNeedsDisplayRect(rect);
     92 }
     93 
     94 void FakeTiledLayer::SetTexturePriorities(
     95     const PriorityCalculator& calculator) {
     96   // Ensure there is always a target render surface available. If none has been
     97   // set (the layer is an orphan for the test), then just set a surface on
     98   // itself.
     99   bool missing_target_render_surface = !render_target();
    100 
    101   if (missing_target_render_surface)
    102     CreateRenderSurface();
    103 
    104   TiledLayer::SetTexturePriorities(calculator);
    105 
    106   if (missing_target_render_surface) {
    107     ClearRenderSurface();
    108     draw_properties().render_target = 0;
    109   }
    110 }
    111 
    112 PrioritizedResourceManager* FakeTiledLayer::ResourceManager() const {
    113   return resource_manager_;
    114 }
    115 
    116 void FakeTiledLayer::UpdateContentsScale(float ideal_contents_scale) {
    117   CalculateContentsScale(ideal_contents_scale,
    118                          1.f,
    119                          1.f,
    120                          false,  // animating_transform_to_screen
    121                          &draw_properties().contents_scale_x,
    122                          &draw_properties().contents_scale_y,
    123                          &draw_properties().content_bounds);
    124 }
    125 
    126 void FakeTiledLayer::ResetNumDependentsNeedPushProperties() {
    127   size_t num = 0;
    128   if (mask_layer()) {
    129     if (mask_layer()->needs_push_properties() ||
    130         mask_layer()->descendant_needs_push_properties())
    131       ++num;
    132   }
    133   if (replica_layer()) {
    134     if (replica_layer()->needs_push_properties() ||
    135         replica_layer()->descendant_needs_push_properties())
    136       ++num;
    137   }
    138   for (size_t i = 0; i < children().size(); ++i) {
    139     if (children()[i]->needs_push_properties() ||
    140         children()[i]->descendant_needs_push_properties())
    141       ++num;
    142   }
    143   num_dependents_need_push_properties_ = num;
    144 }
    145 
    146 LayerUpdater* FakeTiledLayer::Updater() const {
    147   return fake_updater_.get();
    148 }
    149 
    150 void FakeTiledLayerWithScaledBounds::SetContentBounds(
    151     gfx::Size content_bounds) {
    152   forced_content_bounds_ = content_bounds;
    153   draw_properties().content_bounds = forced_content_bounds_;
    154 }
    155 
    156 void FakeTiledLayerWithScaledBounds::CalculateContentsScale(
    157     float ideal_contents_scale,
    158     float device_scale_factor,
    159     float page_scale_factor,
    160     bool animating_transform_to_screen,
    161     float* contents_scale_x,
    162     float* contents_scale_y,
    163     gfx::Size* content_bounds) {
    164   *contents_scale_x =
    165       static_cast<float>(forced_content_bounds_.width()) / bounds().width();
    166   *contents_scale_y =
    167       static_cast<float>(forced_content_bounds_.height()) / bounds().height();
    168   *content_bounds = forced_content_bounds_;
    169 }
    170 
    171 }  // namespace cc
    172