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Mipmap generation method and apparatus

  • US 9,881,392 B2
  • Filed: 01/16/2015
  • Issued: 01/30/2018
  • Est. Priority Date: 07/02/2014
  • Status: Active Grant
First Claim
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1. A method of generating a mipmap, comprising:

  • allocating a mipmap status register of a mipmap level generated with respect to a texture as a mipmap generating function is invoked, without generating the mipmap;

    receiving an initial request for the texture and calculating a mipmap level with respect to the texture;

    determining whether a mipmap of the calculated mipmap level exists in response to the initial request using the mipmap status register and outputting a result indicative thereof;

    if the mipmap of the calculated mipmap level does not exist, receiving a subsequent request for the texture at a later time than the initial request, wherein the subsequent request for the texture is received after generation of the mipmap is delayed for a predetermined time period;

    determining whether to generate the mipmap of the calculated mipmap level based on the subsequent request at the end of the predetermined time period; and

    if the mipmap of the calculated mipmap level does not exist at the end of the predetermined time period, generating the mipmap of the calculated mipmap level.

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