gpu/GLES2/extensions/CHROMIUM/CHROMIUM_subscribe_uniform.txt - Issue 706903004: Revert of Add subscribeUniform extension pipeline

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Issue 706903004: Revert of Add subscribeUniform extension pipeline (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 6 years, 1 month ago

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1 Name

2

3 CHROMIUM_subscribe_uniform

4

5 Name Strings

6

7 CHROMIUM_subscribe_uniform

8

9 Version

10

11 Last Modifed Date: October 30, 2014

12

13 Dependencies

14

15 OpenGL ES 2.0 is required.

16

17 Overview

18

19 Allows clients to subscribe to a set of input uniforms which can

20 be populated within buffers and used to modify uniform variables within

21 their programs.

22

23 Decreases percieved latency for operations performed against these

24 uniforms.

25

26 New Tokens

27

28 Accepted by the <target> parameter of glBindValueBufferCHROMIUM,

29 glSubscribeValueCHROMIUM, glPopulateSubscribedValuesCHROMIUM and

30 glUniformValueBufferCHROMIUM

31

32 GL_SUBSCRIBED_VALUES_BUFFER_CHROMIUM 0x924B

33

34 Accepted by the <subscription> parameter of glSubscribeValueCHROMIUM and

35 glUniformValueBufferCHROMIUM:

36

37 GL_MOUSE_POSITION_CHROMIUM 0x924C

38

39 New Procedures and Functions

40

41 The command

42

43 void glGenValuebuffersCHROMIUM(GLsizei n, GLuint* buffers)

44

45 Generates value buffer object names.

46 <n> Specifies the number of value buffer object names to be generated.

47 <buffers> Specifies an array in which the generated value buffer object

48 names are stored.

49

50 The command

51

52 void glDeleteValuebuffersCHROMIUM(GLsizei n, const GLuint* valuebuffers)

53

54 Deletes named value buffer objects.

55 <n> Specifies the number of value buffer objects to be deleted.

56 <buffers> Specifies an array of value buffer objects to be deleted.

57

58 The command

59

60 boolean glIsValuebufferCHROMIUM(GLuint buffer);

61

62 Returns whether an object is a value buffer object.

63 <buffer> Specifies the name of a buffer object.

64

65 The command

66

67 void glBindValuebufferCHROMIUM(GLenum target, GLuint buffer);

68

69 Lets you use a named value buffer object.

70 <target> Specifies the target to which the buffer object is bound.

71 <buffer> Specifies the name of a buffer object.

72

73 The command

74

75 void glSubscribeValueCHROMIUM(GLenum target, GLenum subscription)

76

77 Subscribes the currently bound buffer object to a subscription target.

78 <target> Specifies the target to which the buffer object is bound.

79 <subscription> Specifies the subscription to which the currently bound

80 buffer object should be subscribed.

81

82 The command

83

84 void glPopulateSubscribedValuesCHROMIUM(GLenum target)

85

86 Populates the currently bound buffer object with all subscription states

87 to which it is subscribed.

88 <target> Specifies the target to which the buffer object is bound.

89

90 The command

91

92 void glUniformValueBufferCHROMIUM(GLint location, GLenum target,

93 GLenum subscription)

94

95 Populates the uniform specified by location within the currently bound

96 program with the value in the currently bound buffer for the subscription

97 target.

98 <location> Specifies the location of the uniform variable to by modified.

99 <target> Specifies the target to which the buffer object is bound.

100 <subscription> Specifies the subscription in the currently bound buffer

101 whose value should be used to populate the uniform.

102

103 Errors

104

105 None.

106

107 New State

108

109 None.

110

111 Revision History

112

113 10/30/2014 Documented the extension

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