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fix FeatureIDTextureView

This commit is contained in:
Nithin Pranesh 2021-12-01 16:12:22 -05:00
parent dfa5d8fcc0
commit ef797f3cfb
1 changed files with 32 additions and 16 deletions
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48
CesiumGltf/include/CesiumGltf/FeatureIDTextureView.h
View File

@ -2,11 +2,12 @@
#include "ExtensionModelExtFeatureMetadata.h"
#include "FeatureIDTexture.h"
#include "FeatureTable.h"
#include "Image.h"
#include "ImageCesium.h"
#include "MetadataFeatureTableView.h"
#include "Model.h"
#include "Texture.h"
#include "TextureAccessor.h"
#include <algorithm>
#include <cassert>
@ -18,6 +19,7 @@ namespace CesiumGltf {
enum class FeatureIDTextureViewStatus {
Valid,
InvalidUninitialized,
InvalidExtensionMissing,
InvalidFeatureTableMissing,
InvalidTextureIndex,
@ -27,12 +29,19 @@ enum class FeatureIDTextureViewStatus {
class FeatureIDTextureView {
public:
FeatueIDTextureView(
const Model& model,
const FeatureIDTexture& featureIDTexture)
FeatureIDTextureView() noexcept
: _pImage(nullptr),
_featureTableView(),
_status(FeatureIDTextureView::Valid) noexcept {
_textureCoordinateIndex(-1),
_pFeatureTable(nullptr),
_status(FeatureIDTextureViewStatus::InvalidUninitialized) {}
FeatureIDTextureView(
const Model& model,
const FeatureIDTexture& featureIDTexture) noexcept
: _pImage(nullptr),
_textureCoordinateIndex(-1),
_pFeatureTable(nullptr),
_status(FeatureIDTextureViewStatus::InvalidUninitialized) {
const ExtensionModelExtFeatureMetadata* pExtension =
model.getExtension<ExtensionModelExtFeatureMetadata>();
@ -44,13 +53,15 @@ public:
auto tableIt =
pExtension->featureTables.find(featureIDTexture.featureTable);
if (tableIt == pExtension->featuresTables.end()) {
if (tableIt == pExtension->featureTables.end()) {
this->_status = FeatureIDTextureViewStatus::InvalidFeatureTableMissing;
return;
}
this->_featureTableView =
MetadataFeatureTableView(&model, &tableIt->second);
this->_pFeatureTable = &tableIt->second;
this->_textureCoordinateIndex =
featureIDTexture.featureIds.texture.texCoord;
int32_t textureIndex = featureIDTexture.featureIds.texture.index;
if (textureIndex < 0 || textureIndex >= model.textures.size()) {
@ -95,24 +106,29 @@ public:
int64_t x = std::clamp(
std::lround(u * this->_pImage->width),
0,
this->_pImage->width);
0L,
(long)this->_pImage->width);
int64_t y = std::clamp(
std::lround(v * this->_pImage->height),
0,
this->_pImage->height);
0L,
(long)this->_pImage->height);
int64_t offset = y * this->_pImage->width + x;
return static_cast<uint8_t>(this->_pImage->pixelData[offset]);
}
const MetadataFeatureTableView& getFeatureTableView() const noexcept {
return this->_featureTableView;
const FeatureTable* getFeatureTable() const noexcept {
return this->_pFeatureTable;
}
int64_t getTextureCoordinateIndex() const noexcept {
return this->_textureCoordinateIndex;
}
private:
const ImageCesium* _pImage;
MetadataFeatureTableView _featureTableView;
int64_t _textureCoordinateIndex;
const FeatureTable* _pFeatureTable;
FeatureIDTextureViewStatus _status;
};