gapid/service/path/mesh.go

// Copyright (C) 2016 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package path

import (
	"fmt"

	"android.googlesource.com/platform/tools/gpu/framework/binary"
)

// MeshOptions provides parameters for the mesh returned by a Mesh path resolve.
type MeshOptions struct {
	binary.Generate `java:"MeshPathOptions"`
	Faceted         bool // If true then normals are calculated from each face.
}

// Mesh is a path to a mesh representation of an object.
type Mesh struct {
	binary.Generate
	Object  Path         // The path to the object that is providing the mesh.
	Options *MeshOptions // Optional parameters
}

// String returns the string representation of the path.
func (n *Mesh) String() string { return n.Path() }

// Path implements the Path interface.
func (n *Mesh) Path() string {
	return fmt.Sprintf("%s.<mesh>", n.Object)
}

// Base implements the Path interface, returning the path to the atom list.
func (n *Mesh) Base() Path {
	return n.Object
}

// Clone implements the Path interface, returning a deep-copy of this path.
func (n *Mesh) Clone() Path {
	return &Mesh{Object: n.Object.Clone()}
}

// Validate implements the Path interface.
func (n *Mesh) Validate() error {
	switch {
	case n.Object == nil:
		return fmt.Errorf("Mesh.Object is nil")
	}
	return n.Object.Validate()
}