void GLAPIENTRY
_mesa_BindSampler(GLuint unit, GLuint sampler);
void GLAPIENTRY
+_mesa_BindSamplers(GLuint first, GLsizei count, const GLuint *samplers);
+void GLAPIENTRY
_mesa_SamplerParameteri(GLuint sampler, GLenum pname, GLint param);
void GLAPIENTRY
_mesa_SamplerParameterf(GLuint sampler, GLenum pname, GLfloat param);