mesa: add KHR_no_error support for glUniformBlockBinding()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

src/mapi/glapi/gen/ARB_uniform_buffer_object.xml

@@ -86,7 +86,7 @@
 <!-- Duplicated with GL3x.xml: BindBufferRange, BindBufferBase,
      GetIntegeri_v -->
 
-<function name="UniformBlockBinding" es2="3.0">
+<function name="UniformBlockBinding" es2="3.0" no_error="true">
     <param name="program" type="GLuint" />
     <param name="uniformBlockIndex" type="GLuint" />
     <param name="uniformBlockBinding" type="GLuint" />

src/mesa/main/uniforms.c

@@ -1100,6 +1100,16 @@ uniform_block_binding(struct gl_context *ctx, struct gl_shader_program *shProg,
    }
 }
 
+void GLAPIENTRY
+_mesa_UniformBlockBinding_no_error(GLuint program, GLuint uniformBlockIndex,
+                                   GLuint uniformBlockBinding)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   struct gl_shader_program *shProg = _mesa_lookup_shader_program(ctx, program);
+   uniform_block_binding(ctx, shProg, uniformBlockIndex, uniformBlockBinding);
+}
+
 void GLAPIENTRY
 _mesa_UniformBlockBinding(GLuint program,
 			  GLuint uniformBlockIndex,

src/mesa/main/uniforms.h

@@ -232,6 +232,11 @@ _mesa_GetUniformIndices(GLuint program,
 			GLsizei uniformCount,
 			const GLchar * const *uniformNames,
 			GLuint *uniformIndices);
+
+void GLAPIENTRY
+_mesa_UniformBlockBinding_no_error(GLuint program, GLuint uniformBlockIndex,
+                                   GLuint uniformBlockBinding);
+
 void GLAPIENTRY
 _mesa_UniformBlockBinding(GLuint program,
 			  GLuint uniformBlockIndex,