15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/compositor/dip_util.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/command_line.h" 8116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch#include "cc/layers/layer.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/compositor/compositor.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/compositor/compositor_switches.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/compositor/layer.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/display.h" 13116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch#include "ui/gfx/geometry/safe_integer_conversions.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/point.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/point_conversions.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/rect.h" 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/rect_conversions.h" 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/size.h" 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/size_conversions.h" 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 215f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#if DCHECK_IS_ON 225f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#include "ui/compositor/layer_animator.h" 235f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#endif 245f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace ui { 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)float GetDeviceScaleFactor(const Layer* layer) { 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return layer->device_scale_factor(); 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)gfx::Point ConvertPointToDIP(const Layer* layer, 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const gfx::Point& point_in_pixel) { 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return gfx::ToFlooredPoint( 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gfx::ScalePoint(point_in_pixel, 1.0f / GetDeviceScaleFactor(layer))); 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)gfx::PointF ConvertPointToDIP(const Layer* layer, 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const gfx::PointF& point_in_pixel) { 392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return gfx::ScalePoint(point_in_pixel, 1.0f / GetDeviceScaleFactor(layer)); 402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)gfx::Size ConvertSizeToDIP(const Layer* layer, 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const gfx::Size& size_in_pixel) { 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return gfx::ToFlooredSize( 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gfx::ScaleSize(size_in_pixel, 1.0f / GetDeviceScaleFactor(layer))); 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)gfx::Rect ConvertRectToDIP(const Layer* layer, 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const gfx::Rect& rect_in_pixel) { 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) float scale = 1.0f / GetDeviceScaleFactor(layer); 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return gfx::ToFlooredRectDeprecated(gfx::ScaleRect(rect_in_pixel, scale)); 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)gfx::Point ConvertPointToPixel(const Layer* layer, 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const gfx::Point& point_in_dip) { 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return gfx::ToFlooredPoint( 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gfx::ScalePoint(point_in_dip, GetDeviceScaleFactor(layer))); 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)gfx::Size ConvertSizeToPixel(const Layer* layer, 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const gfx::Size& size_in_dip) { 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return gfx::ToFlooredSize( 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gfx::ScaleSize(size_in_dip, GetDeviceScaleFactor(layer))); 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)gfx::Rect ConvertRectToPixel(const Layer* layer, 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const gfx::Rect& rect_in_dip) { 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) float scale = GetDeviceScaleFactor(layer); 690529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch // Use ToEnclosingRect() to ensure we paint all the possible pixels 700529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch // touched. ToEnclosingRect() floors the origin, and ceils the max 710529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch // coordinate. To do otherwise (such as flooring the size) potentially 720529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch // results in rounding down and not drawing all the pixels that are 730529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch // touched. 740529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch return gfx::ToEnclosingRect( 750529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch gfx::RectF(gfx::ScalePoint(rect_in_dip.origin(), scale), 760529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch gfx::ScaleSize(rect_in_dip.size(), scale))); 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 780529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 795f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#if DCHECK_IS_ON 80116680a4aac90f2aa7413d9095a592090648e557Ben Murdochnamespace { 81116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 82116680a4aac90f2aa7413d9095a592090648e557Ben Murdochvoid CheckSnapped(float snapped_position) { 83116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch const float kEplison = 0.0001f; 846e8cce623b6e4fe0c9e4af605d675dd9d0338c38Torne (Richard Coles) float diff = std::abs(snapped_position - gfx::ToRoundedInt(snapped_position)); 85116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch DCHECK_LT(diff, kEplison); 86116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch} 87116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 88116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch} // namespace 89116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch#endif 90116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 91116680a4aac90f2aa7413d9095a592090648e557Ben Murdochvoid SnapLayerToPhysicalPixelBoundary(ui::Layer* snapped_layer, 92116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch ui::Layer* layer_to_snap) { 93116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch DCHECK_NE(snapped_layer, layer_to_snap); 94116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch DCHECK(snapped_layer); 95116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch DCHECK(snapped_layer->Contains(layer_to_snap)); 96116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 97116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch gfx::Point view_offset_dips = layer_to_snap->GetTargetBounds().origin(); 98116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch ui::Layer::ConvertPointToLayer( 99116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch layer_to_snap->parent(), snapped_layer, &view_offset_dips); 100116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch gfx::PointF view_offset = view_offset_dips; 101116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 102116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch float scale_factor = GetDeviceScaleFactor(layer_to_snap); 103116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch view_offset.Scale(scale_factor); 104116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch gfx::PointF view_offset_snapped(gfx::ToRoundedInt(view_offset.x()), 105116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch gfx::ToRoundedInt(view_offset.y())); 106116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 107116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch gfx::Vector2dF fudge = view_offset_snapped - view_offset; 108116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch fudge.Scale(1.0 / scale_factor); 109116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch layer_to_snap->SetSubpixelPositionOffset(fudge); 1105f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#if DCHECK_IS_ON 1115f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) gfx::Point layer_offset; 1125f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) gfx::PointF origin; 1135f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) Layer::ConvertPointToLayer( 1145f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) layer_to_snap->parent(), snapped_layer, &layer_offset); 1155f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) if (layer_to_snap->GetAnimator()->is_animating()) { 1165f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) origin = layer_to_snap->GetTargetBounds().origin() + 1175f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) layer_to_snap->subpixel_position_offset(); 1185f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) } else { 1195f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) cc::Layer* cc_layer = layer_to_snap->cc_layer(); 1205f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) origin = cc_layer->position(); 1215f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) } 1225f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) CheckSnapped((layer_offset.x() + origin.x()) * scale_factor); 1235f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) CheckSnapped((layer_offset.y() + origin.y()) * scale_factor); 124116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch#endif 125116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch} 126116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace ui 128