104 lines
3.0 KiB
C++
104 lines
3.0 KiB
C++
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// Copyright 2020 The MediaPipe Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "mediapipe/modules/face_geometry/libs/mesh_3d_utils.h"
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#include <cstdint>
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#include <cstdlib>
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#include "mediapipe/framework/port/ret_check.h"
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#include "mediapipe/framework/port/statusor.h"
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#include "mediapipe/modules/face_geometry/protos/mesh_3d.pb.h"
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namespace mediapipe::face_geometry {
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namespace {
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bool HasVertexComponentVertexPT(VertexComponent vertex_component) {
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switch (vertex_component) {
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case VertexComponent::POSITION:
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case VertexComponent::TEX_COORD:
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return true;
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default:
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return false;
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}
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}
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uint32_t GetVertexComponentSizeVertexPT(VertexComponent vertex_component) {
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switch (vertex_component) {
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case VertexComponent::POSITION:
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return 3;
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case VertexComponent::TEX_COORD:
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return 2;
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}
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}
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uint32_t GetVertexComponentOffsetVertexPT(VertexComponent vertex_component) {
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switch (vertex_component) {
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case VertexComponent::POSITION:
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return 0;
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case VertexComponent::TEX_COORD:
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return GetVertexComponentSizeVertexPT(VertexComponent::POSITION);
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}
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}
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} // namespace
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std::size_t GetVertexSize(Mesh3d::VertexType vertex_type) {
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switch (vertex_type) {
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case Mesh3d::VERTEX_PT:
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return GetVertexComponentSizeVertexPT(VertexComponent::POSITION) +
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GetVertexComponentSizeVertexPT(VertexComponent::TEX_COORD);
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}
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}
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std::size_t GetPrimitiveSize(Mesh3d::PrimitiveType primitive_type) {
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switch (primitive_type) {
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case Mesh3d::TRIANGLE:
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return 3;
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}
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}
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bool HasVertexComponent(Mesh3d::VertexType vertex_type,
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VertexComponent vertex_component) {
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switch (vertex_type) {
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case Mesh3d::VERTEX_PT:
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return HasVertexComponentVertexPT(vertex_component);
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}
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}
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absl::StatusOr<uint32_t> GetVertexComponentOffset(
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Mesh3d::VertexType vertex_type, VertexComponent vertex_component) {
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RET_CHECK(HasVertexComponentVertexPT(vertex_component))
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<< "A given vertex type doesn't have the requested component!";
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switch (vertex_type) {
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case Mesh3d::VERTEX_PT:
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return GetVertexComponentOffsetVertexPT(vertex_component);
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}
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}
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absl::StatusOr<uint32_t> GetVertexComponentSize(
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Mesh3d::VertexType vertex_type, VertexComponent vertex_component) {
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RET_CHECK(HasVertexComponentVertexPT(vertex_component))
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<< "A given vertex type doesn't have the requested component!";
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switch (vertex_type) {
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case Mesh3d::VERTEX_PT:
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return GetVertexComponentSizeVertexPT(vertex_component);
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}
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}
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} // namespace mediapipe::face_geometry
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