GeoTiff.h

#pragma once
#include "Rendering/DataFormat.h"
 
#include "Foundation/Memory/MemoryBuffer.h"
 
#include <tiffio.h>
 
#include <optional>
 
namespace Cogs::Core::TerrainProvider {
 
 
  struct GeoTiffView
  {
    Cogs::TextureFormat format = Cogs::TextureFormat::Unknown;
    unsigned width = 0;
    unsigned height = 0;
    double scale[3] = { 0 };
    double origin[3] = { 0 };
 
    std::optional<float> noData;
    std::optional<float> minSample;
    std::optional<float> maxSample;
 
    bool valid = false;
 
    double tiePoint[6] = { 0.0 };
 
    GeoTiffView(const void* ptr, size_t size);
    ~GeoTiffView();
 
    bool getFullImage(Memory::MemoryBuffer& buffer, float suggested_nodata);
 
    const void* ptr = nullptr;
    size_t size = 0;
    size_t offset = 0;
    tiff* tif = nullptr;
  };
 
  bool createTiff(Memory::MemoryBuffer& out, const Memory::MemoryBuffer& in, unsigned w, unsigned h, Cogs::TextureFormat format);
 
}