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
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
// 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/quad_culler.h"
#include "cc/append_quads_data.h"
#include "cc/debug_border_draw_quad.h"
#include "cc/debug_colors.h"
#include "cc/layer_impl.h"
#include "cc/occlusion_tracker.h"
#include "cc/overdraw_metrics.h"
#include "cc/render_pass.h"
#include "third_party/skia/include/core/SkColor.h"
#include <public/WebTransformationMatrix.h>
using namespace std;
namespace cc {
QuadCuller::QuadCuller(QuadList& quadList, SharedQuadStateList& sharedQuadStateList, LayerImpl* layer, const OcclusionTrackerImpl* occlusionTracker, bool showCullingWithDebugBorderQuads, bool forSurface)
: m_quadList(quadList)
, m_sharedQuadStateList(sharedQuadStateList)
, m_currentSharedQuadState(0)
, m_layer(layer)
, m_occlusionTracker(occlusionTracker)
, m_showCullingWithDebugBorderQuads(showCullingWithDebugBorderQuads)
, m_forSurface(forSurface)
{
}
SharedQuadState* QuadCuller::useSharedQuadState(scoped_ptr<SharedQuadState> sharedQuadState)
{
sharedQuadState->id = m_sharedQuadStateList.size();
// FIXME: If all quads are culled for the sharedQuadState, we can drop it from the list.
m_currentSharedQuadState = sharedQuadState.get();
m_sharedQuadStateList.append(sharedQuadState.Pass());
return m_currentSharedQuadState;
}
static inline bool appendQuadInternal(scoped_ptr<DrawQuad> drawQuad, const gfx::Rect& culledRect, QuadList& quadList, const OcclusionTrackerImpl& occlusionTracker, LayerImpl* layer, bool createDebugBorderQuads)
{
bool keepQuad = !culledRect.IsEmpty();
if (keepQuad)
drawQuad->visible_rect = culledRect;
occlusionTracker.overdrawMetrics().didCullForDrawing(drawQuad->quadTransform(), drawQuad->rect, culledRect);
gfx::Rect opaqueDrawRect = drawQuad->opacity() == 1.0f ? drawQuad->opaque_rect : gfx::Rect();
occlusionTracker.overdrawMetrics().didDraw(drawQuad->quadTransform(), culledRect, opaqueDrawRect);
if (keepQuad) {
if (createDebugBorderQuads && !drawQuad->IsDebugQuad() && drawQuad->visible_rect != drawQuad->rect) {
SkColor color = DebugColors::CulledTileBorderColor();
float width = DebugColors::CulledTileBorderWidth(layer ? layer->layerTreeHostImpl() : NULL);
quadList.append(DebugBorderDrawQuad::create(drawQuad->shared_quad_state, drawQuad->visible_rect, color, width).PassAs<DrawQuad>());
}
// Pass the quad after we're done using it.
quadList.append(drawQuad.Pass());
}
return keepQuad;
}
bool QuadCuller::append(scoped_ptr<DrawQuad> drawQuad, AppendQuadsData& appendQuadsData)
{
DCHECK(drawQuad->shared_quad_state == m_currentSharedQuadState);
DCHECK(!m_sharedQuadStateList.isEmpty());
DCHECK(m_sharedQuadStateList.last() == m_currentSharedQuadState);
gfx::Rect culledRect;
bool hasOcclusionFromOutsideTargetSurface;
bool implDrawTransformIsUnknown = false;
if (m_forSurface)
culledRect = m_occlusionTracker->unoccludedContributingSurfaceContentRect(m_layer, false, drawQuad->rect, &hasOcclusionFromOutsideTargetSurface);
else
culledRect = m_occlusionTracker->unoccludedContentRect(m_layer->renderTarget(), drawQuad->rect, drawQuad->quadTransform(), implDrawTransformIsUnknown, drawQuad->clippedRectInTarget(), &hasOcclusionFromOutsideTargetSurface);
appendQuadsData.hadOcclusionFromOutsideTargetSurface |= hasOcclusionFromOutsideTargetSurface;
return appendQuadInternal(drawQuad.Pass(), culledRect, m_quadList, *m_occlusionTracker, m_layer, m_showCullingWithDebugBorderQuads);
}
} // namespace cc
|
