glgetsubroutineuniformlocation(3g) [debian man page]
GLGETSUBROUTINEUNIFO(3G) [FIXME: manual] GLGETSUBROUTINEUNIFO(3G) NAME
glGetSubroutineUniformLocation - retrieve the location of a subroutine uniform of a given shader stage within a program C SPECIFICATION
GLint glGetSubroutineUniformLocation(GLuint program, GLenum shadertype, const GLchar *name); PARAMETERS
program Specifies the name of the program containing shader stage. shadertype Specifies the shader stage from which to query for subroutine uniform index. shadertype must be one of GL_VERTEX_SHADER, GL_TESS_CONTROL_SHADER, GL_TESS_EVALUATION_SHADER, GL_GEOMETRY_SHADER or GL_FRAGMENT_SHADER. name Specifies the name of the subroutine uniform whose index to query. DESCRIPTION
glGetSubroutineUniformLocation returns the location of the subroutine uniform variable name in the shader stage of type shadertype attached to program, with behavior otherwise identical to glGetUniformLocation(). If name is not the name of a subroutine uniform in the shader stage, -1 is returned, but no error is generated. If name is the name of a subroutine uniform in the shader stage, a value between zero and the value of GL_ACTIVE_SUBROUTINE_LOCATIONS minus one will be returned. Subroutine locations are assigned using consecutive integers in the range from zero to the value of GL_ACTIVE_SUBROUTINE_LOCATIONS minus one for the shader stage. For active subroutine uniforms declared as arrays, the declared array elements are assigned consecutive locations. ERRORS
GL_INVALID_ENUM is generated if shadertype or pname is not one of the accepted values. GL_INVALID_VALUE is generated if program is not the name of an existing program object. SEE ALSO
glGetProgram(), glGetActiveSubroutineUniform(), glGetActiveSubroutineUniformName(), glGetUniformLocation() 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/. [FIXME: source] 05/30/2012 GLGETSUBROUTINEUNIFO(3G)
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GLUNIFORMSUBROUTINES(3G) [FIXME: manual] GLUNIFORMSUBROUTINES(3G) NAME
glUniformSubroutines - load active subroutine uniforms C SPECIFICATION
void glUniformSubroutinesuiv(GLenum shadertype, GLsizei count, const GLuint *indices); PARAMETERS
shadertype Specifies the shader stage from which to query for subroutine uniform index. shadertype must be one of GL_VERTEX_SHADER, GL_TESS_CONTROL_SHADER, GL_TESS_EVALUATION_SHADER, GL_GEOMETRY_SHADER or GL_FRAGMENT_SHADER. count Specifies the number of uniform indices stored in indices. indices Specifies the address of an array holding the indices to load into the shader subroutine variables. DESCRIPTION
glUniformSubroutines loads all active subroutine uniforms for shader stage shadertype of the current program with subroutine indices from indices, storing indices[i] into the uniform at location i. count must be equal to the value of GL_ACTIVE_SUBROUTINE_UNIFORM_LOCATIONS for the program currently in use at shader stage shadertype. Furthermore, all values in indices must be less than the value of GL_ACTIVE_SUBROUTINES for the shader stage. ERRORS
GL_INVALID_OPERATION is generated if no program object is current. GL_INVALID_VALUE is generated if count is not equal to the value of GL_ACTIVE_SUBROUTINE_UNIFORM_LOCATIONS for the shader stage shadertype of the current program. GL_INVALID_VALUE is generated if any value in indices is geater than or equal to the value of GL_ACTIVE_SUBROUTINES for the shader stage shadertype of the current program. GL_INVALID_ENUM is generated if shadertype is not one of the accepted values. ASSOCIATED GETS
glGetProgramStage() with argument GL_ACTIVE_SUBROUTINES glGetProgramStage() with argument GL_ACTIVE_SUBROUTINE_UNIFORM_LOCATIONS SEE ALSO
glGetProgram(), glGetActiveSubroutineUniform(), glGetActiveSubroutineUniformName(), 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/. [FIXME: source] 05/30/2012 GLUNIFORMSUBROUTINES(3G)