ImageAsset.h

#pragma once
 
#include "CesiumGltf/Ktx2TranscodeTargets.h"
#include "CesiumGltf/Library.h"
#include "CesiumUtility/SharedAsset.h"
 
#include <cstddef>
#include <cstdint>
#include <optional>
#include <vector>
 
namespace CesiumGltf {
 
struct CESIUMGLTF_API ImageAssetMipPosition {
  size_t byteOffset;
 
  size_t byteSize;
};
 
struct CESIUMGLTF_API ImageAsset final
    : public CesiumUtility::SharedAsset<ImageAsset> {
  int32_t width = 0;
 
  int32_t height = 0;
 
  int32_t channels = 4;
 
  int32_t bytesPerChannel = 1;
 
  GpuCompressedPixelFormat compressedPixelFormat =
      GpuCompressedPixelFormat::NONE;
 
  std::vector<ImageAssetMipPosition> mipPositions;
 
  std::vector<std::byte> pixelData;
 
  int64_t sizeBytes = -1;
 
  ImageAsset() = default;
 
  int64_t getSizeBytes() const {
    return this->sizeBytes >= 0 ? this->sizeBytes
                                : static_cast<int64_t>(this->pixelData.size());
  }
};
} // namespace CesiumGltf