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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CC_OUTPUT_BEGIN_FRAME_ARGS_H_ | 5 #ifndef CC_OUTPUT_BEGIN_FRAME_ARGS_H_ |
| 6 #define CC_OUTPUT_BEGIN_FRAME_ARGS_H_ | 6 #define CC_OUTPUT_BEGIN_FRAME_ARGS_H_ |
| 7 | 7 |
| 8 #include "base/location.h" | 8 #include "base/location.h" |
| 9 #include "base/memory/ref_counted.h" | 9 #include "base/memory/ref_counted.h" |
| 10 #include "base/time/time.h" | 10 #include "base/time/time.h" |
| 11 #include "base/values.h" | 11 #include "base/values.h" |
| 12 #include "cc/base/cc_export.h" | |
| 13 | 12 |
| 14 namespace base { | 13 namespace base { |
| 15 namespace trace_event { | 14 namespace trace_event { |
| 16 class ConvertableToTraceFormat; | 15 class ConvertableToTraceFormat; |
| 17 class TracedValue; | 16 class TracedValue; |
| 18 } | 17 } |
| 19 } | 18 } |
| 20 | 19 |
| 21 /** | 20 /** |
| 22 * In debug builds we trace the creation origin of BeginFrameArgs objects. We | 21 * In debug builds we trace the creation origin of BeginFrameArgs objects. We |
| 23 * reuse the tracked_objects::Location system to do that. | 22 * reuse the tracked_objects::Location system to do that. |
| 24 * | 23 * |
| 25 * However, in release builds we don't want this as it doubles the size of the | 24 * However, in release builds we don't want this as it doubles the size of the |
| 26 * BeginFrameArgs object. As well it adds a number of largish strings to the | 25 * BeginFrameArgs object. As well it adds a number of largish strings to the |
| 27 * binary. Despite the argument being unused, most compilers are unable to | 26 * binary. Despite the argument being unused, most compilers are unable to |
| 28 * optimise it away even when unused. Instead we use the BEGINFRAME_FROM_HERE | 27 * optimise it away even when unused. Instead we use the BEGINFRAME_FROM_HERE |
| 29 * macro to prevent the data even getting referenced. | 28 * macro to prevent the data even getting referenced. |
| 30 */ | 29 */ |
| 31 #ifdef NDEBUG | 30 #ifdef NDEBUG |
| 32 #define BEGINFRAME_FROM_HERE nullptr | 31 #define BEGINFRAME_FROM_HERE nullptr |
| 33 #else | 32 #else |
| 34 #define BEGINFRAME_FROM_HERE FROM_HERE | 33 #define BEGINFRAME_FROM_HERE FROM_HERE |
| 35 #endif | 34 #endif |
| 36 | 35 |
| 37 namespace cc { | 36 namespace cc { |
| 38 | 37 |
| 39 struct CC_EXPORT BeginFrameArgs { | 38 struct BeginFrameArgs { |
| 40 enum BeginFrameArgsType { | 39 enum BeginFrameArgsType { |
| 41 INVALID, | 40 INVALID, |
| 42 NORMAL, | 41 NORMAL, |
| 43 SYNCHRONOUS, | 42 SYNCHRONOUS, |
| 44 MISSED, | 43 MISSED, |
| 45 // Not a real type, but used by the IPC system. Should always remain the | 44 // Not a real type, but used by the IPC system. Should always remain the |
| 46 // *last* value in this enum. | 45 // *last* value in this enum. |
| 47 BEGIN_FRAME_ARGS_TYPE_MAX, | 46 BEGIN_FRAME_ARGS_TYPE_MAX, |
| 48 }; | 47 }; |
| 49 static const char* TypeToString(BeginFrameArgsType type); | 48 static const char* TypeToString(BeginFrameArgsType type); |
| (...skipping 38 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 88 private: | 87 private: |
| 89 BeginFrameArgs(base::TimeTicks frame_time, | 88 BeginFrameArgs(base::TimeTicks frame_time, |
| 90 base::TimeTicks deadline, | 89 base::TimeTicks deadline, |
| 91 base::TimeDelta interval, | 90 base::TimeDelta interval, |
| 92 BeginFrameArgsType type); | 91 BeginFrameArgsType type); |
| 93 }; | 92 }; |
| 94 | 93 |
| 95 } // namespace cc | 94 } // namespace cc |
| 96 | 95 |
| 97 #endif // CC_OUTPUT_BEGIN_FRAME_ARGS_H_ | 96 #endif // CC_OUTPUT_BEGIN_FRAME_ARGS_H_ |
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