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Issue 271533011: cc: Move tiling management out of draw properties calculation. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: WIP - review comments Created 6 years, 7 months ago
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1 // Copyright 2011 The Chromium Authors. All rights reserved. 1 // Copyright 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "cc/trees/layer_tree_host_common.h" 5 #include "cc/trees/layer_tree_host_common.h"
6 6
7 #include <algorithm> 7 #include <algorithm>
8 8
9 #include "base/debug/trace_event.h" 9 #include "base/debug/trace_event.h"
10 #include "cc/base/math_util.h" 10 #include "cc/base/math_util.h"
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1747 layer, 1747 layer,
1748 globals.can_adjust_raster_scales, 1748 globals.can_adjust_raster_scales,
1749 ideal_contents_scale, 1749 ideal_contents_scale,
1750 globals.device_scale_factor, 1750 globals.device_scale_factor,
1751 data_from_ancestor.in_subtree_of_page_scale_application_layer 1751 data_from_ancestor.in_subtree_of_page_scale_application_layer
1752 ? globals.page_scale_factor 1752 ? globals.page_scale_factor
1753 : 1.f, 1753 : 1.f,
1754 combined_maximum_animation_contents_scale, 1754 combined_maximum_animation_contents_scale,
1755 animating_transform_to_screen); 1755 animating_transform_to_screen);
1756 1756
1757 layer_draw_properties.ideal_contents_scale = ideal_contents_scale;
1758 layer_draw_properties.maximum_animation_contents_scale =
1759 combined_maximum_animation_contents_scale;
1760 layer_draw_properties.page_scale =
1761 data_from_ancestor.in_subtree_of_page_scale_application_layer
1762 ? globals.page_scale_factor
1763 : 1.f;
1764
1757 // The draw_transform that gets computed below is effectively the layer's 1765 // The draw_transform that gets computed below is effectively the layer's
1758 // draw_transform, unless the layer itself creates a render_surface. In that 1766 // draw_transform, unless the layer itself creates a render_surface. In that
1759 // case, the render_surface re-parents the transforms. 1767 // case, the render_surface re-parents the transforms.
1760 layer_draw_properties.target_space_transform = combined_transform; 1768 layer_draw_properties.target_space_transform = combined_transform;
1761 // M[draw] = M[parent] * LT * S[layer2content] 1769 // M[draw] = M[parent] * LT * S[layer2content]
1762 layer_draw_properties.target_space_transform.Scale( 1770 layer_draw_properties.target_space_transform.Scale(
1763 SK_MScalar1 / layer->contents_scale_x(), 1771 SK_MScalar1 / layer->contents_scale_x(),
1764 SK_MScalar1 / layer->contents_scale_y()); 1772 SK_MScalar1 / layer->contents_scale_y());
1765 1773
1766 // The layer's screen_space_transform represents the transform between root 1774 // The layer's screen_space_transform represents the transform between root
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2637 // At this point, we think the point does hit the touch event handler region 2645 // At this point, we think the point does hit the touch event handler region
2638 // on the layer, but we need to walk up the parents to ensure that the layer 2646 // on the layer, but we need to walk up the parents to ensure that the layer
2639 // was not clipped in such a way that the hit point actually should not hit 2647 // was not clipped in such a way that the hit point actually should not hit
2640 // the layer. 2648 // the layer.
2641 if (PointIsClippedBySurfaceOrClipRect(screen_space_point, layer_impl)) 2649 if (PointIsClippedBySurfaceOrClipRect(screen_space_point, layer_impl))
2642 return false; 2650 return false;
2643 2651
2644 return true; 2652 return true;
2645 } 2653 }
2646 } // namespace cc 2654 } // namespace cc
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