core_simple: pass precision in

Author: Grok Compression

examples/core/core_simple.cpp

@@ -32,11 +32,11 @@ with memory buffers as source and destination
 
 // template parameter T determines the type of input data: uint8_t, uint16_t etc
 template<typename T>
-int core_simple(uint32_t dimX, uint32_t dimY, std::vector<std::unique_ptr<T[]>>& uncompressedData)
+int core_simple(uint32_t dimX, uint32_t dimY, uint8_t precision,
+                std::vector<std::unique_ptr<T[]>>& uncompressedData)
 {
   const uint16_t numComps = (uint16_t)uncompressedData.size();
   const auto colourSpace = numComps == 3 ? GRK_CLRSPC_SRGB : GRK_CLRSPC_GRAY;
-  const uint32_t precision = sizeof(T) * 8;
 
   grk_object* codec = nullptr; // compression/decompression codec object
   grk_image* encInputImage = nullptr; // uncompressed image passed into compressor
@@ -239,5 +239,5 @@ int main([[maybe_unused]] int argc, [[maybe_unused]] const char** argv)
   }
 
   // run compress and the decompress and compare output with original
-  return core_simple<uint16_t>(compWidth, compHeight, uncompressedData);
+  return core_simple<uint16_t>(compWidth, compHeight, precision, uncompressedData);
 }