1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
// Copyright 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/trees/quad_culler.h"
#include "cc/debug/debug_colors.h"
#include "cc/layers/append_quads_data.h"
#include "cc/layers/layer_impl.h"
#include "cc/quads/debug_border_draw_quad.h"
#include "cc/quads/render_pass.h"
#include "cc/quads/render_pass_draw_quad.h"
#include "cc/trees/occlusion_tracker.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/gfx/transform.h"
namespace cc {
QuadCuller::QuadCuller(QuadList* quad_list,
SharedQuadStateList* shared_quad_state_list,
const LayerImpl* layer,
const OcclusionTracker<LayerImpl>& occlusion_tracker)
: quad_list_(quad_list),
shared_quad_state_list_(shared_quad_state_list),
layer_(layer),
occlusion_tracker_(occlusion_tracker),
current_shared_quad_state_(NULL) {
}
SharedQuadState* QuadCuller::UseSharedQuadState(
scoped_ptr<SharedQuadState> shared_quad_state) {
// TODO(danakj): If all quads are culled for the shared_quad_state, we can
// drop it from the list.
current_shared_quad_state_ = shared_quad_state.get();
shared_quad_state_list_->push_back(shared_quad_state.Pass());
return current_shared_quad_state_;
}
gfx::Rect QuadCuller::UnoccludedContentRect(
const gfx::Rect& content_rect,
const gfx::Transform& draw_transform) {
return occlusion_tracker_.UnoccludedContentRect(
layer_->render_target(), content_rect, draw_transform);
}
gfx::Rect QuadCuller::UnoccludedContributingSurfaceContentRect(
const gfx::Rect& content_rect,
const gfx::Transform& draw_transform) {
return occlusion_tracker_.UnoccludedContributingSurfaceContentRect(
layer_, content_rect, draw_transform);
}
void QuadCuller::Append(scoped_ptr<DrawQuad> draw_quad) {
DCHECK(draw_quad->shared_quad_state == current_shared_quad_state_);
DCHECK(!shared_quad_state_list_->empty());
DCHECK(shared_quad_state_list_->back() == current_shared_quad_state_);
DCHECK(!draw_quad->rect.IsEmpty());
DCHECK(!draw_quad->visible_rect.IsEmpty());
quad_list_->push_back(draw_quad.Pass());
}
} // namespace cc
|
