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| 1 // Copyright 2012 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/layers/solid_color_layer_impl.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 | |
| 9 #include "cc/layers/append_quads_data.h" | |
| 10 #include "cc/quads/solid_color_draw_quad.h" | |
| 11 #include "cc/trees/occlusion.h" | |
| 12 | |
| 13 namespace cc { | |
| 14 | |
| 15 namespace { | |
| 16 const int kSolidQuadTileSize = 256; | |
| 17 } | |
| 18 | |
| 19 SolidColorLayerImpl::SolidColorLayerImpl(LayerTreeImpl* tree_impl, int id) | |
| 20 : LayerImpl(tree_impl, id) { | |
| 21 } | |
| 22 | |
| 23 SolidColorLayerImpl::~SolidColorLayerImpl() {} | |
| 24 | |
| 25 scoped_ptr<LayerImpl> SolidColorLayerImpl::CreateLayerImpl( | |
| 26 LayerTreeImpl* tree_impl) { | |
| 27 return SolidColorLayerImpl::Create(tree_impl, id()); | |
| 28 } | |
| 29 | |
| 30 void SolidColorLayerImpl::AppendSolidQuads( | |
| 31 RenderPass* render_pass, | |
| 32 const Occlusion& occlusion_in_content_space, | |
| 33 SharedQuadState* shared_quad_state, | |
| 34 const gfx::Rect& visible_content_rect, | |
| 35 SkColor color, | |
| 36 AppendQuadsData* append_quads_data) { | |
| 37 // We create a series of smaller quads instead of just one large one so that | |
| 38 // the culler can reduce the total pixels drawn. | |
| 39 int right = visible_content_rect.right(); | |
| 40 int bottom = visible_content_rect.bottom(); | |
| 41 for (int x = visible_content_rect.x(); x < visible_content_rect.right(); | |
| 42 x += kSolidQuadTileSize) { | |
| 43 for (int y = visible_content_rect.y(); y < visible_content_rect.bottom(); | |
| 44 y += kSolidQuadTileSize) { | |
| 45 gfx::Rect quad_rect(x, | |
| 46 y, | |
| 47 std::min(right - x, kSolidQuadTileSize), | |
| 48 std::min(bottom - y, kSolidQuadTileSize)); | |
| 49 gfx::Rect visible_quad_rect = | |
| 50 occlusion_in_content_space.GetUnoccludedContentRect(quad_rect); | |
| 51 if (visible_quad_rect.IsEmpty()) | |
| 52 continue; | |
| 53 | |
| 54 append_quads_data->visible_content_area += | |
| 55 visible_quad_rect.width() * visible_quad_rect.height(); | |
| 56 | |
| 57 SolidColorDrawQuad* quad = | |
| 58 render_pass->CreateAndAppendDrawQuad<SolidColorDrawQuad>(); | |
| 59 quad->SetNew( | |
| 60 shared_quad_state, quad_rect, visible_quad_rect, color, false); | |
| 61 } | |
| 62 } | |
| 63 } | |
| 64 | |
| 65 void SolidColorLayerImpl::AppendQuads( | |
| 66 RenderPass* render_pass, | |
| 67 AppendQuadsData* append_quads_data) { | |
| 68 SharedQuadState* shared_quad_state = | |
| 69 render_pass->CreateAndAppendSharedQuadState(); | |
| 70 PopulateSharedQuadState(shared_quad_state); | |
| 71 | |
| 72 AppendDebugBorderQuad( | |
| 73 render_pass, content_bounds(), shared_quad_state, append_quads_data); | |
| 74 | |
| 75 // TODO(hendrikw): We need to pass the visible content rect rather than | |
| 76 // |content_bounds()| here. | |
| 77 AppendSolidQuads(render_pass, draw_properties().occlusion_in_content_space, | |
| 78 shared_quad_state, gfx::Rect(content_bounds()), | |
| 79 background_color(), append_quads_data); | |
| 80 } | |
| 81 | |
| 82 const char* SolidColorLayerImpl::LayerTypeAsString() const { | |
| 83 return "cc::SolidColorLayerImpl"; | |
| 84 } | |
| 85 | |
| 86 } // namespace cc | |
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