| // Copyright 2011 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/trees/layer_tree_settings.h" |
| |
| #include <limits> |
| |
| #include "base/command_line.h" |
| #include "base/logging.h" |
| #include "base/strings/string_number_conversions.h" |
| |
| namespace cc { |
| |
| LayerTreeSettings::LayerTreeSettings() |
| : impl_side_painting(false), |
| throttle_frame_production(true), |
| begin_frame_scheduling_enabled(false), |
| using_synchronous_renderer_compositor(false), |
| per_tile_painting_enabled(false), |
| partial_swap_enabled(false), |
| cache_render_pass_contents(true), |
| accelerated_animation_enabled(true), |
| background_color_instead_of_checkerboard(false), |
| show_overdraw_in_tracing(false), |
| can_use_lcd_text(true), |
| should_clear_root_render_pass(true), |
| use_linear_fade_scrollbar_animator(false), |
| scrollbar_linear_fade_delay_ms(300), |
| scrollbar_linear_fade_length_ms(300), |
| solid_color_scrollbars(false), |
| solid_color_scrollbar_color(SK_ColorWHITE), |
| solid_color_scrollbar_thickness_dip(-1), |
| calculate_top_controls_position(false), |
| use_memory_management(true), |
| timeout_and_draw_when_animation_checkerboards(true), |
| layer_transforms_should_scale_layer_contents(false), |
| minimum_contents_scale(0.0625f), |
| low_res_contents_scale_factor(0.125f), |
| top_controls_height(0.f), |
| top_controls_show_threshold(0.5f), |
| top_controls_hide_threshold(0.5f), |
| refresh_rate(60.0), |
| max_partial_texture_updates(std::numeric_limits<size_t>::max()), |
| num_raster_threads(1), |
| default_tile_size(gfx::Size(256, 256)), |
| max_untiled_layer_size(gfx::Size(512, 512)), |
| minimum_occlusion_tracking_size(gfx::Size(160, 160)), |
| use_pinch_zoom_scrollbars(false), |
| use_pinch_virtual_viewport(false), |
| // At 256x256 tiles, 128 tiles cover an area of 2048x4096 pixels. |
| max_tiles_for_interest_area(128), |
| max_unused_resource_memory_percentage(100), |
| highp_threshold_min(0), |
| force_direct_layer_drawing(false), |
| strict_layer_property_change_checking(false), |
| use_map_image(false), |
| compositor_name("ChromiumCompositor") { |
| // TODO(danakj): Renable surface caching when we can do it more realiably. |
| // crbug.com/170713 |
| cache_render_pass_contents = false; |
| } |
| |
| LayerTreeSettings::~LayerTreeSettings() {} |
| |
| } // namespace cc |