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1 /* | 1 /* |
2 * Copyright (C) 2014 Google Inc. All rights reserved. | 2 * Copyright (C) 2014 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SkEventTracer_DEFINED | 8 #ifndef SkEventTracer_DEFINED |
9 #define SkEventTracer_DEFINED | 9 #define SkEventTracer_DEFINED |
10 | 10 |
11 // The class in this header defines the interface between Skia's internal | 11 // The class in this header defines the interface between Skia's internal |
12 // tracing macros and an external entity (e.g., Chrome) that will consume them. | 12 // tracing macros and an external entity (e.g., Chrome) that will consume them. |
13 // Such an entity should subclass SkEventTracer and provide an instance of | 13 // Such an entity should subclass SkEventTracer and provide an instance of |
14 // that event to SkEventTracer::SetInstance. | 14 // that event to SkEventTracer::SetInstance. |
15 | 15 |
16 // If you're looking for the tracing macros to instrument Skia itself, those | 16 // If you're looking for the tracing macros to instrument Skia itself, those |
17 // live in src/core/SkTraceEvent.h | 17 // live in src/core/SkTraceEvent.h |
18 | 18 |
19 #include "SkTypes.h" | 19 #include "SkTypes.h" |
20 | 20 |
21 // This will mark the trace event as disabled by default. The user will need | 21 // This will mark the trace event as disabled by default. The user will need |
22 // to explicitly enable the event. | 22 // to explicitly enable the event. |
23 #define TRACE_DISABLED_BY_DEFAULT(name) "disabled-by-default-" name | 23 #define TRACE_DISABLED_BY_DEFAULT(name) "disabled-by-default-" name |
24 | 24 |
25 class SK_API SkEventTracer { | 25 class SK_API SkEventTracer { |
26 public: | 26 public: |
27 | 27 |
28 typedef uint32_t Handle; | 28 typedef uint64_t Handle; |
29 | 29 |
30 static SkEventTracer* GetInstance(); | 30 static SkEventTracer* GetInstance(); |
31 | 31 |
32 static void SetInstance(SkEventTracer* tracer) { | 32 static void SetInstance(SkEventTracer* tracer) { |
33 SkDELETE(SkEventTracer::gInstance); | 33 SkDELETE(SkEventTracer::gInstance); |
34 SkEventTracer::gInstance = tracer; | 34 SkEventTracer::gInstance = tracer; |
35 } | 35 } |
36 | 36 |
37 virtual ~SkEventTracer() { } | 37 virtual ~SkEventTracer() { } |
38 | 38 |
39 // The pointer returned from GetCategoryGroupEnabled() points to a | 39 // The pointer returned from GetCategoryGroupEnabled() points to a |
40 // value with zero or more of the following bits. Used in this class only. | 40 // value with zero or more of the following bits. Used in this class only. |
41 // The TRACE_EVENT macros should only use the value as a bool. | 41 // The TRACE_EVENT macros should only use the value as a bool. |
42 // These values must be in sync with macro values in trace_event.h in chromi
um. | 42 // These values must be in sync with macro values in trace_event.h in chromi
um. |
43 enum CategoryGroupEnabledFlags { | 43 enum CategoryGroupEnabledFlags { |
44 // Category group enabled for the recording mode. | 44 // Category group enabled for the recording mode. |
45 kEnabledForRecording_CategoryGroupEnabledFlags = 1 << 0, | 45 kEnabledForRecording_CategoryGroupEnabledFlags = 1 << 0, |
46 // Category group enabled for the monitoring mode. | 46 // Category group enabled for the monitoring mode. |
47 kEnabledForMonitoring_CategoryGroupEnabledFlags = 1 << 1, | 47 kEnabledForMonitoring_CategoryGroupEnabledFlags = 1 << 1, |
48 // Category group enabled by SetEventCallbackEnabled(). | 48 // Category group enabled by SetEventCallbackEnabled(). |
49 kEnabledForEventCallback_CategoryGroupEnabledFlags = 1 << 2, | 49 kEnabledForEventCallback_CategoryGroupEnabledFlags = 1 << 2, |
50 }; | 50 }; |
51 | 51 |
52 virtual const uint8_t* getCategoryGroupEnabled(const char* name) = 0; | 52 virtual const uint8_t* getCategoryGroupEnabled(const char* name) = 0; |
53 virtual const char* getCategoryGroupName( | 53 virtual const char* getCategoryGroupName( |
54 const uint8_t* category_group_enabled) = 0; | 54 const uint8_t* categoryEnabledFlag) = 0; |
55 | 55 |
56 virtual SkEventTracer::Handle | 56 virtual SkEventTracer::Handle |
57 addTraceEvent(char phase, | 57 addTraceEvent(char phase, |
58 const uint8_t* categoryEnabledFlag, | 58 const uint8_t* categoryEnabledFlag, |
59 const char* name, | 59 const char* name, |
60 uint64_t id, | 60 uint64_t id, |
61 int32_t numArgs, | 61 int32_t numArgs, |
62 const char** argNames, | 62 const char** argNames, |
63 const uint8_t* argTypes, | 63 const uint8_t* argTypes, |
64 const uint64_t* argValues, | 64 const uint64_t* argValues, |
65 uint8_t flags) = 0; | 65 uint8_t flags) = 0; |
66 | 66 |
67 virtual void | 67 virtual void |
68 updateTraceEventDuration(const uint8_t* categoryEnabledFlag, | 68 updateTraceEventDuration(const uint8_t* categoryEnabledFlag, |
69 const char* name, | 69 const char* name, |
70 SkEventTracer::Handle handle) = 0; | 70 SkEventTracer::Handle handle) = 0; |
71 private: | 71 private: |
72 static SkEventTracer *gInstance; | 72 static SkEventTracer *gInstance; |
73 }; | 73 }; |
74 | 74 |
75 #endif // SkEventTracer_DEFINED | 75 #endif // SkEventTracer_DEFINED |
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