Fixed EXT_shader_texture_lod ESSL extension for vertex shaders.

3rdparty/glsl-optimizer/src/glsl/builtin_functions.cpp

@@ -172,7 +172,8 @@ es_lod_exists_in_stage(const _mesa_glsl_parse_state *state)
 	 * is enabled.
 	 */
 	return
-		state->stage == MESA_SHADER_FRAGMENT &&
+// BK - EXT_shader_texture_lod is available in vertex and fragment shaders.
+//		state->stage == MESA_SHADER_FRAGMENT &&
 		state->es_shader &&
 		state->is_version(110, 100) &&
 		state->EXT_shader_texture_lod_enable;

3rdparty/glsl-optimizer/src/glsl/builtin_variables.cpp

@@ -949,6 +949,13 @@ builtin_variable_generator::generate_fs_special_vars()
 			var->enable_extension_warning("GL_EXT_shader_framebuffer_fetch");
 	}
 
+	{
+		// BK - gl_PrimitiveID
+		ir_variable *var;
+		var = add_output(VARYING_SLOT_PRIMITIVE_ID, int_t, "gl_PrimitiveID", glsl_precision_high);
+		var->data.interpolation = INTERP_QUALIFIER_FLAT;
+	}
+
    if (state->ARB_sample_shading_enable) {
       add_system_value(SYSTEM_VALUE_SAMPLE_ID, int_t, "gl_SampleID", glsl_precision_high);
       add_system_value(SYSTEM_VALUE_SAMPLE_POS, vec2_t, "gl_SamplePosition", glsl_precision_high);