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| author | oshima <oshima@chromium.org> | 2015-04-01 17:42:46 -0700 |
|---|---|---|
| committer | Commit bot <commit-bot@chromium.org> | 2015-04-02 00:43:15 +0000 |
| commit | 55271a170bf4bfddfad289730743126b2cde0efc (patch) | |
| tree | e2d636515ca86ae3ef589b04f71038b4a802b4ec /content/renderer | |
| parent | cc9931870450252a8c84d08f7c671a0a695a266c (diff) | |
| download | chromium_src-55271a170bf4bfddfad289730743126b2cde0efc.zip chromium_src-55271a170bf4bfddfad289730743126b2cde0efc.tar.gz chromium_src-55271a170bf4bfddfad289730743126b2cde0efc.tar.bz2 | |
Adjust the default tile size based on device scale factor on ChromeOS
BUG=365877
R=reveman@chromium.org
Review URL: https://codereview.chromium.org/1046313002
Cr-Commit-Position: refs/heads/master@{#323379}
Diffstat (limited to 'content/renderer')
| -rw-r--r-- | content/renderer/gpu/render_widget_compositor.cc | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/content/renderer/gpu/render_widget_compositor.cc b/content/renderer/gpu/render_widget_compositor.cc index 611ed02..f253358 100644 --- a/content/renderer/gpu/render_widget_compositor.cc +++ b/content/renderer/gpu/render_widget_compositor.cc @@ -108,7 +108,7 @@ cc::LayerSelectionBound ConvertWebSelectionBound( return cc_bound; } -gfx::Size CalculateDefaultTileSize() { +gfx::Size CalculateDefaultTileSize(RenderWidget* widget) { int default_tile_size = 256; #if defined(OS_ANDROID) // TODO(epenner): unify this for all platforms if it @@ -151,7 +151,12 @@ gfx::Size CalculateDefaultTileSize() { if (numTiles >= 40) default_tile_size = 512; } +#elif defined(OS_CHROMEOS) + // Use 512 for high DPI (dsf=2.0f) devices. + if (widget->screen_info().deviceScaleFactor >= 2.0f) + default_tile_size = 512; #endif + return gfx::Size(default_tile_size, default_tile_size); } @@ -212,7 +217,7 @@ void RenderWidgetCompositor::Initialize() { !cmd->HasSwitch(cc::switches::kDisableThreadedAnimation); settings.use_display_lists = cmd->HasSwitch(switches::kEnableSlimmingPaint); - settings.default_tile_size = CalculateDefaultTileSize(); + settings.default_tile_size = CalculateDefaultTileSize(widget_); if (cmd->HasSwitch(switches::kDefaultTileWidth)) { int tile_width = 0; GetSwitchValueAsInt(*cmd, |