FloatRasterSource.cpp

#include "FloatRasterSource.h"
 
#include "Foundation/Logging/Logger.h"
#include "Foundation/Memory/MemoryBuffer.h"
 
namespace {
  Cogs::Logging::Log logger = Cogs::Logging::getLogger("FloatRasterSource");
}
 
Cogs::Core::TerrainProvider::FloatRasterSource::~FloatRasterSource()
{
 
}
 
bool Cogs::Core::TerrainProvider::FloatRasterSource::init(const FloatConfig& conf, std::unique_ptr<ICache>&& icache)
{
  value = conf.value;
 
  BaseConfig base = conf;
  if (base.textureFormat == Cogs::TextureFormat::Unknown) {
    base.textureFormat = Cogs::TextureFormat::R32_FLOAT;
  }
  else if (base.textureFormat != Cogs::TextureFormat::R32_FLOAT) {
    LOG_ERROR(logger, "Illegal texture format");
    return false;
  }
  return BaseRasterSource::init(base, std::move(icache));
}
 
void Cogs::Core::TerrainProvider::FloatRasterSource::getConfig(FloatConfig& conf) const
{
  BaseRasterSource::getConfig(conf);
  conf.value = value;
}
 
void Cogs::Core::TerrainProvider::FloatRasterSource::requestTile(Request* req)
{
  size_t N = size_t(tiling.width) * size_t(tiling.height);
 
  Cogs::Memory::MemoryBuffer contents(N * sizeof(float));
 
  auto id = req->id;
  LOG_DEBUG(logger, "Building tile %u.%u.%u", id.level, id.i, id.j);
 
  auto* ptr = static_cast<float*>(contents.data());
  for (size_t i = 0; i < N; i++) {
    ptr[i] = value;
  }
  addTile(contents, MimeType::F32, req, StringView());
}