gpu/GLES2/extensions/CHROMIUM/CHROMIUM_sync_point.txt - Issue 1331843005: Implemented new fence syncs which replaces the old sync points.

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Issue 1331843005: Implemented new fence syncs which replaces the old sync points. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: added mojo README.chromium changes, fixed and added test for missing order number release case Created 5 years, 2 months ago

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1 Name	1 Name

2	2

3 CHROMIUM_sync_point	3 CHROMIUM_sync_point

4	4

5 Name Strings	5 Name Strings

6	6

7 GL_CHROMIUM_sync_point	7 GL_CHROMIUM_sync_point

8	8

9 Version	9 Version

10	10

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34 CHROMIUM_texture_mailbox, if present.	34 CHROMIUM_texture_mailbox, if present.

35	35

36 Issues	36 Issues

37	37

38 None	38 None

39	39

40 New Procedures and Functions	40 New Procedures and Functions

41	41

42 The command	42 The command

43	43

44 uint InsertFenceSyncCHROMIUM()	44 uint64 InsertFenceSyncCHROMIUM()

45	45

46 inserts a fence sync in the current command stream. The fence sync is	46 inserts a fence sync in the current command stream. The fence sync is

47 signaled when previous commands have been submitted to the server, or when	47 signaled when previous commands have been submitted to the server, or when

48 the context is destroyed, whichever happens first. The fence sync name is	48 the context is destroyed, whichever happens first. The fence sync name is

49 only visible for the current context. The returned fence sync name cannot	49 only visible for the current context. The returned fence sync name cannot

50 be waited upon directly, but once the command is flushed to the server it	50 be waited upon directly, but once the command is flushed to the server it

51 can be converted to a sync token using GenSyncTokenCHROMIUM which is	51 can be converted to a sync token using GenSyncTokenCHROMIUM which is

52 waitable.	52 waitable.

53	53

54 The command	54 The command

55	55

56 void GenSyncTokenCHROMIUM(uint fence_sync, GLbyte *sync_token)	56 void GenSyncTokenCHROMIUM(uint64 fence_sync, GLbyte *sync_token)

57	57

58 converts <fence_sync> which is only visible to the current context to a	58 converts <fence_sync> which is only visible to the current context to a

59 sync token which may be waited upon by any contexts on the same server.	59 sync token which may be waited upon by any contexts on the same server.

60 The <fence_sync> command must be flushed before this function may be	60 The <fence_sync> command must be flushed before this function may be

61 called, otherwise an INVALID_OPERATION error is generated. The generated	61 called, otherwise an INVALID_OPERATION error is generated. The generated

62 <sync_token> must be generated on the same context as when	62 <sync_token> must be generated on the same context as when

63 InsertSyncPointCHROMIUM was called. The <sync_token> can be passed and	63 InsertSyncPointCHROMIUM was called. The <sync_token> can be passed and

64 used by any context on the same server, including other context groups.	64 used by any context on the same server, including other context groups.

65	65

66 <sync_token> returns a GL_SYNC_POINT_SIZE_CHROMIUM byte sized name.	66 <sync_token> returns a GL_SYNC_POINT_SIZE_CHROMIUM byte sized name.

67	67

68 The command	68 The command

69	69

70 void WaitSyncTokenCHROMIUM(GLbyte *sync_token)	70 void WaitSyncTokenCHROMIUM(const GLbyte *sync_token)

71	71

72 causes the current context to stop submitting commands until the specified	72 causes the current context to stop submitting commands until the specified

73 fence sync becomes signaled. This is implemented as a server-side wait.	73 fence sync becomes signaled. This is implemented as a server-side wait.

74 <sync_token> is a sync token generated by GenSyncPointCHROMIUM. If	74 <sync_token> is a sync token generated by GenSyncPointCHROMIUM. If

75 <sync_token> isn't a valid sync token returned by GenSyncPointCHROMIUM, the	75 <sync_token> isn't a valid sync token returned by GenSyncPointCHROMIUM, the

76 command is equivalent to a no-op and no error is generated.	76 command is equivalent to a no-op and no error is generated.

77	77

78 New Tokens	78 New Tokens

79	79

80 The size of a sync token name in bytes.	80 The size of a sync token name in bytes.

81	81

82 GL_SYNC_TOKEN_SIZE_CHROMIUM 12	82 GL_SYNC_TOKEN_SIZE_CHROMIUM 24

83	83

84 Errors	84 Errors

85	85

86 INVALID_VALUE is generated if the <fence_sync> parameter of	86 INVALID_VALUE is generated if the <fence_sync> parameter of

87 GenSyncPointCHROMIUM is not a valid local fence sync name.	87 GenSyncPointCHROMIUM is not a valid local fence sync name.

88	88

89 INVALID_OPERATION is generated if the <fence_sync> parameter of	89 INVALID_OPERATION is generated if the <fence_sync> parameter of

90 GenSyncPointCHROMIUM has not been flushed to the server.	90 GenSyncPointCHROMIUM has not been flushed to the server.

91	91

92 New State	92 New State

93	93

94 None.	94 None.

95	95

96 Revision History	96 Revision History

97	97

98 2/25/2013 Documented the extension	98 2/25/2013 Documented the extension

99	99

100 9/8/2015 Modified functions to InsertFenceSyncCHROMIUM,	100 9/8/2015 Modified functions to InsertFenceSyncCHROMIUM,

101 GenSyncTokenCHROMIUM, and WaitSyncTokenCHROMIUM.	101 GenSyncTokenCHROMIUM, and WaitSyncTokenCHROMIUM.

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