jd_input()

size_t fl::third_party::TJpg_Decoder::jd_input ( JDEC * jdec, uint8_t * buf, size_t len )

static

Definition at line 81 of file TJpg_Decoder.cpp.hpp.

{
  // Retrieve instance pointer from JDEC device context
  TJpg_Decoder *thisPtr = static_cast<TJpg_Decoder*>(jdec->device);
 
  // Handle an array input
  if (thisPtr->jpg_source == TJPG_ARRAY) {
    // Avoid running off end of array
    if (thisPtr->array_index + len > thisPtr->array_size) {
      len = thisPtr->array_size - thisPtr->array_index;
    }
 
    // If buf is valid then copy len bytes to buffer
    if (buf) fl::memcpy(buf, (const uint8_t *)(thisPtr->array_data + thisPtr->array_index), len);
 
    // Move pointer
    thisPtr->array_index += len;
  }
 
  return len;
}

References TJpg_Decoder(), array_data, array_index, array_size, fl::FL_NO_EXCEPT, jpg_source, fl::memcpy(), and fl::third_party::TJPG_ARRAY.

Referenced by drawJpg(), and getJpgSize().

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