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| 1 // Copyright 2017 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/output/overlay_strategy_underlay_cast.h" |
| 6 |
| 7 #include "base/containers/adapters.h" |
| 8 #include "cc/quads/draw_quad.h" |
| 9 #include "cc/quads/solid_color_draw_quad.h" |
| 10 #include "ui/gfx/geometry/rect_conversions.h" |
| 11 |
| 12 namespace cc { |
| 13 |
| 14 OverlayStrategyUnderlayCast::OverlayStrategyUnderlayCast( |
| 15 OverlayCandidateValidator* capability_checker) |
| 16 : OverlayStrategyUnderlay(capability_checker) {} |
| 17 |
| 18 OverlayStrategyUnderlayCast::~OverlayStrategyUnderlayCast() {} |
| 19 |
| 20 bool OverlayStrategyUnderlayCast::Attempt( |
| 21 ResourceProvider* resource_provider, |
| 22 RenderPass* render_pass, |
| 23 OverlayCandidateList* candidate_list, |
| 24 std::vector<gfx::Rect>* content_bounds) { |
| 25 const QuadList& const_quad_list = render_pass->quad_list; |
| 26 bool found_underlay = false; |
| 27 gfx::Rect content_rect; |
| 28 for (const auto* quad : base::Reversed(const_quad_list)) { |
| 29 if (OverlayCandidate::IsInvisibleQuad(quad)) |
| 30 continue; |
| 31 |
| 32 const auto& transform = quad->shared_quad_state->quad_to_target_transform; |
| 33 gfx::RectF quad_rect = gfx::RectF(quad->rect); |
| 34 transform.TransformRect(&quad_rect); |
| 35 |
| 36 bool is_underlay = false; |
| 37 if (!found_underlay) { |
| 38 OverlayCandidate candidate; |
| 39 is_underlay = |
| 40 OverlayCandidate::FromDrawQuad(resource_provider, quad, &candidate); |
| 41 found_underlay = is_underlay; |
| 42 } |
| 43 |
| 44 if (!found_underlay && quad->material == DrawQuad::SOLID_COLOR) { |
| 45 const SolidColorDrawQuad* solid = SolidColorDrawQuad::MaterialCast(quad); |
| 46 if (solid->color == SK_ColorBLACK) |
| 47 continue; |
| 48 } |
| 49 |
| 50 if (is_underlay) { |
| 51 content_rect.Subtract(gfx::ToEnclosedRect(quad_rect)); |
| 52 } else { |
| 53 content_rect.Union(gfx::ToEnclosingRect(quad_rect)); |
| 54 } |
| 55 } |
| 56 |
| 57 const bool result = OverlayStrategyUnderlay::Attempt( |
| 58 resource_provider, render_pass, candidate_list, content_bounds); |
| 59 DCHECK(content_bounds && content_bounds->empty()); |
| 60 DCHECK(result == found_underlay); |
| 61 if (found_underlay) { |
| 62 content_bounds->push_back(content_rect); |
| 63 } |
| 64 return result; |
| 65 } |
| 66 |
| 67 } // namespace cc |
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