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
86
87
88
89
90
91
92
93
94
95
96
97
|
// 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.
#ifndef CCOverdrawMetrics_h
#define CCOverdrawMetrics_h
#include <wtf/PassOwnPtr.h>
namespace WebKit {
class WebTransformationMatrix;
}
namespace WebCore {
class IntRect;
class CCLayerTreeHost;
class CCLayerTreeHostImpl;
// FIXME: compute overdraw metrics only occasionally, not every frame.
class CCOverdrawMetrics {
public:
static PassOwnPtr<CCOverdrawMetrics> create(bool recordMetricsForFrame) { return adoptPtr(new CCOverdrawMetrics(recordMetricsForFrame)); }
// These methods are used for saving metrics during update/commit.
// Record pixels painted by WebKit into the texture updater, but does not mean the pixels were rasterized in main memory.
void didPaint(const IntRect& paintedRect);
// Records that an invalid tile was culled and did not need to be painted/uploaded, and did not contribute to other tiles needing to be painted.
void didCullTileForUpload();
// Records pixels that were uploaded to texture memory.
void didUpload(const WebKit::WebTransformationMatrix& transformToTarget, const IntRect& uploadRect, const IntRect& opaqueRect);
// Record contents texture(s) behind present using the given number of bytes.
void didUseContentsTextureMemoryBytes(size_t contentsTextureUseBytes);
// Record RenderSurface texture(s) being present using the given number of bytes.
void didUseRenderSurfaceTextureMemoryBytes(size_t renderSurfaceUseBytes);
// These methods are used for saving metrics during draw.
// Record pixels that were not drawn to screen.
void didCullForDrawing(const WebKit::WebTransformationMatrix& transformToTarget, const IntRect& beforeCullRect, const IntRect& afterCullRect);
// Record pixels that were drawn to screen.
void didDraw(const WebKit::WebTransformationMatrix& transformToTarget, const IntRect& afterCullRect, const IntRect& opaqueRect);
void recordMetrics(const CCLayerTreeHost*) const;
void recordMetrics(const CCLayerTreeHostImpl*) const;
// Accessors for tests.
float pixelsDrawnOpaque() const { return m_pixelsDrawnOpaque; }
float pixelsDrawnTranslucent() const { return m_pixelsDrawnTranslucent; }
float pixelsCulledForDrawing() const { return m_pixelsCulledForDrawing; }
float pixelsPainted() const { return m_pixelsPainted; }
float pixelsUploadedOpaque() const { return m_pixelsUploadedOpaque; }
float pixelsUploadedTranslucent() const { return m_pixelsUploadedTranslucent; }
int tilesCulledForUpload() const { return m_tilesCulledForUpload; }
private:
enum MetricsType {
UpdateAndCommit,
DrawingToScreen
};
explicit CCOverdrawMetrics(bool recordMetricsForFrame);
template<typename LayerTreeHostType>
void recordMetricsInternal(MetricsType, const LayerTreeHostType*) const;
// When false this class is a giant no-op.
bool m_recordMetricsForFrame;
// These values are used for saving metrics during update/commit.
// Count of pixels that were painted due to invalidation.
float m_pixelsPainted;
// Count of pixels uploaded to textures and known to be opaque.
float m_pixelsUploadedOpaque;
// Count of pixels uploaded to textures and not known to be opaque.
float m_pixelsUploadedTranslucent;
// Count of tiles that were invalidated but not uploaded.
int m_tilesCulledForUpload;
// Count the number of bytes in contents textures.
unsigned long long m_contentsTextureUseBytes;
// Count the number of bytes in RenderSurface textures.
unsigned long long m_renderSurfaceTextureUseBytes;
// These values are used for saving metrics during draw.
// Count of pixels that are opaque (and thus occlude). Ideally this is no more than wiewport width x height.
float m_pixelsDrawnOpaque;
// Count of pixels that are possibly translucent, and cannot occlude.
float m_pixelsDrawnTranslucent;
// Count of pixels not drawn as they are occluded by somthing opaque.
float m_pixelsCulledForDrawing;
};
} // namespace WebCore
#endif
|
