globjectlabel(3g) [centos man page]

GLOBJECTLABEL(3G)						   OpenGL Manual						 GLOBJECTLABEL(3G)

NAME

       glObjectLabel - label a named object identified within a namespace

C SPECIFICATION

       void glObjectLabel(GLenum identifier, GLuint name, GLsizei length, const char * label);

PARAMETERS

       identifier
	   The namespace from which the name of the object is allocated.

       name
	   The name of the object to label.

       length
	   The length of the label to be used for the object.

       label
	   The address of a string containing the label to assign to the object.

DESCRIPTION

       glObjectLabel labels the object identified by name within the namespace given by identifier.  identifier must be one of GL_BUFFER,
       GL_SHADER, GL_PROGRAM, GL_VERTEX_ARRAY, GL_QUERY, GL_PROGRAM_PIPELINE, GL_TRANSFORM_FEEDBACK, GL_SAMPLER, GL_TEXTURE, GL_RENDERBUFFER,
       GL_FRAMEBUFFER, to indicate the namespace containing the names of buffers, shaders, programs, vertex array objects, query objects, program
       pipelines, transform feedback objects, samplers, textures, renderbuffers and frame buffers, respectively.

       label is the address of a string that will be used to label an object.  length contains the number of characters in label. If length is
       negative, it is implied that label contains a null-terminated string. If label is NULL, any debug label is effectively removed from the
       object.

ERRORS

       GL_INVALID_ENUM is generated if identifier is not one of the accepted object types.

       GL_INVALID_OPERATION is generated if name is not the name of an existing object of the type specified by identifier.

       GL_INVALID_VALUE is generated if the number of characters in label, excluding the null terminator when length is negative, is greater than
       the value of GL_MAX_LABEL_LENGTH.

ASSOCIATED GETS

       glGet() with argument GL_MAX_LABEL_LENGTH.

SEE ALSO

       glPushDebugGroup(), glPopDebugGroup(), glObjectPtrLabel().

COPYRIGHT

       Copyright (C) 2012 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication
       License, v 1.0, 8 June 1999.  http://opencontent.org/openpub/.

AUTHORS

       opengl.org

opengl.org							    06/10/2014							 GLOBJECTLABEL(3G)

GLGETACTIVESUBROUTIN(3G)					   OpenGL Manual					  GLGETACTIVESUBROUTIN(3G)

NAME

       glGetActiveSubroutineName - query the name of an active shader subroutine

C SPECIFICATION

       void glGetActiveSubroutineName(GLuint program, GLenum shadertype, GLuint index, GLsizei bufsize, GLsizei *length, GLchar *name);

PARAMETERS

       program
	   Specifies the name of the program containing the subroutine.

       shadertype
	   Specifies the shader stage from which to query the subroutine name.

       index
	   Specifies the index of the shader subroutine uniform.

       bufsize
	   Specifies the size of the buffer whose address is given in name.

       length
	   Specifies the address of a variable which is to receive the length of the shader subroutine uniform name.

       name
	   Specifies the address of an array into which the name of the shader subroutine uniform will be written.

DESCRIPTION

       glGetActiveSubroutineName queries the name of an active shader subroutine uniform from the program object given in program.  index
       specifies the index of the shader subroutine uniform within the shader stage given by stage, and must between zero and the value of
       GL_ACTIVE_SUBROUTINES minus one for the shader stage.

       The name of the selected subroutine is returned as a null-terminated string in name. The actual number of characters written into name, not
       including the null-terminator, is is returned in length. If length is NULL, no length is returned. The maximum number of characters that
       may be written into name, including the null-terminator, is given in bufsize.

ERRORS

       GL_INVALID_VALUE is generated if index is greater than or equal to the value of GL_ACTIVE_SUBROUTINES.

       GL_INVALID_VALUE is generated if program is not the name of an existing program object.

ASSOCIATED GETS

       glGetProgramStage() with argument GL_ACTIVE_SUBROUTINE_UNIFORM_MAX_LENGTH

SEE ALSO

       glGetSubroutineIndex(), glGetActiveSubroutineUniform(), glGetProgramStage()

COPYRIGHT

       Copyright (C) 2010 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication
       License, v 1.0, 8 June 1999.  http://opencontent.org/openpub/.

AUTHORS

       opengl.org

opengl.org							    06/10/2014						  GLGETACTIVESUBROUTIN(3G)