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Commit 3d35b1d0 authored by Dichen Zhang's avatar Dichen Zhang Committed by Android (Google) Code Review
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Merge "ultrahdr: fix visual artifacts in api-1 due to overflows" into main

parents e677350a c85c0d6c

libs/ultrahdr/gainmapmath.cpp

+6 −6
Original line number Diff line number Diff line
@@ -547,13 +547,13 @@ void transformYuv420(jr_uncompressed_ptr image, size_t x_chroma, size_t y_chroma 
  uint8_t& u_uint = reinterpret_cast<uint8_t*>(image->data)[pixel_count + pixel_uv_idx];

  uint8_t& v_uint = reinterpret_cast<uint8_t*>(image->data)[pixel_count * 5 / 4 + pixel_uv_idx];



  y1_uint = static_cast<uint8_t>(floor(yuv1.y * 255.0f + 0.5f));

  y2_uint = static_cast<uint8_t>(floor(yuv2.y * 255.0f + 0.5f));

  y3_uint = static_cast<uint8_t>(floor(yuv3.y * 255.0f + 0.5f));

  y4_uint = static_cast<uint8_t>(floor(yuv4.y * 255.0f + 0.5f));

  y1_uint = static_cast<uint8_t>(CLIP3((yuv1.y * 255.0f + 0.5f), 0, 255));

  y2_uint = static_cast<uint8_t>(CLIP3((yuv2.y * 255.0f + 0.5f), 0, 255));

  y3_uint = static_cast<uint8_t>(CLIP3((yuv3.y * 255.0f + 0.5f), 0, 255));

  y4_uint = static_cast<uint8_t>(CLIP3((yuv4.y * 255.0f + 0.5f), 0, 255));



  u_uint = static_cast<uint8_t>(floor(new_uv.u * 255.0f + 128.0f + 0.5f));

  v_uint = static_cast<uint8_t>(floor(new_uv.v * 255.0f + 128.0f + 0.5f));

  u_uint = static_cast<uint8_t>(CLIP3((new_uv.u * 255.0f + 128.0f + 0.5f), 0, 255));

  v_uint = static_cast<uint8_t>(CLIP3((new_uv.v * 255.0f + 128.0f + 0.5f), 0, 255));

}



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