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// Copyright 2016 The Draco Authors.
//
// 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.
//
#include "draco/attributes/geometry_attribute.h"
namespace draco {
GeometryAttribute::GeometryAttribute()
: buffer_(nullptr),
num_components_(1),
data_type_(DT_FLOAT32),
byte_stride_(0),
byte_offset_(0),
attribute_type_(INVALID),
unique_id_(0) {}
void GeometryAttribute::Init(GeometryAttribute::Type attribute_type,
DataBuffer *buffer, int8_t num_components,
DataType data_type, bool normalized,
int64_t byte_stride, int64_t byte_offset) {
buffer_ = buffer;
if (buffer) {
buffer_descriptor_.buffer_id = buffer->buffer_id();
buffer_descriptor_.buffer_update_count = buffer->update_count();
}
num_components_ = num_components;
data_type_ = data_type;
normalized_ = normalized;
byte_stride_ = byte_stride;
byte_offset_ = byte_offset;
attribute_type_ = attribute_type;
}
bool GeometryAttribute::CopyFrom(const GeometryAttribute &src_att) {
num_components_ = src_att.num_components_;
data_type_ = src_att.data_type_;
normalized_ = src_att.normalized_;
byte_stride_ = src_att.byte_stride_;
byte_offset_ = src_att.byte_offset_;
attribute_type_ = src_att.attribute_type_;
buffer_descriptor_ = src_att.buffer_descriptor_;
unique_id_ = src_att.unique_id_;
if (src_att.buffer_ == nullptr) {
buffer_ = nullptr;
} else {
if (buffer_ == nullptr) {
return false;
}
buffer_->Update(src_att.buffer_->data(), src_att.buffer_->data_size());
}
return true;
}
bool GeometryAttribute::operator==(const GeometryAttribute &va) const {
if (attribute_type_ != va.attribute_type_) {
return false;
}
// It's OK to compare just the buffer descriptors here. We don't need to
// compare the buffers themselves.
if (buffer_descriptor_.buffer_id != va.buffer_descriptor_.buffer_id) {
return false;
}
if (buffer_descriptor_.buffer_update_count !=
va.buffer_descriptor_.buffer_update_count) {
return false;
}
if (num_components_ != va.num_components_) {
return false;
}
if (data_type_ != va.data_type_) {
return false;
}
if (byte_stride_ != va.byte_stride_) {
return false;
}
if (byte_offset_ != va.byte_offset_) {
return false;
}
return true;
}
void GeometryAttribute::ResetBuffer(DataBuffer *buffer, int64_t byte_stride,
int64_t byte_offset) {
buffer_ = buffer;
buffer_descriptor_.buffer_id = buffer->buffer_id();
buffer_descriptor_.buffer_update_count = buffer->update_count();
byte_stride_ = byte_stride;
byte_offset_ = byte_offset;
}
} // namespace draco
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