Color mapped and direct color OSD region processor with support for 4:2:2 profile decode function

An on-screen display (OSD) processor for processing OSD data of a digital video decode system having a video decoder, said OSD processor comprising:

• an embedded memory;
• logic for employing said embedded memory during an OSD function of said digital video decode system;
• and
• logic for employing said embedded memory during a 4:2:2 profile function of said video decoder when an image being decoded is in 4:2:2 format.

An on-screen display (OSD) processor for processing OSD data of a digital video decode system, said OSD processor comprising:

• an embedded memory;
• write logic for writing direct color bitmap data into said embedded memory when said OSD data comprises a direct color description mode;
• and
• read logic for reading said direct color bitmap data from said embedded memory to an output of said OSD processor for display.

An article of manufacture, comprising:

• at least one computer usable medium having computer readable program code means embodied therein for causing the processing of on-screen display (OSD) data employing an OSD processor with embedded memory, the computer readable program code means in the article of manufacture comprising:
• computer readable program code means for causing a computer to write color table data to said embedded memory when said OSD data comprises an overlay region in color mapped mode;
• and
• computer readable program code means for causing a computer to alternately write direct color bitmap data to said embedded memory when said OSD data comprises an overlay region in direct color mode.

An article of manufacture, comprising:

• at least one computer usable medium having computer readable program code means embodied therein for causing the processing of on-screen display (OSD) data of a digital video decode system having a video decoder and an OSD processor with embedded memory, the computer readable program code means in the article of manufacture comprising:
• computer readable program code means for causing a computer to employ said embedded memory to temporarily store at least a portion of said OSD data during an OSD function of said digital video decode system;
• and
• computer readable program code means for causing a computer to employ said embedded memory to temporarily store inverse quantization data for said video decoder during a 4:2:2 profile function of said video decoder.

An article of manufacture, comprising:

• at least one computer usable medium having computer readable program code means embodied therein for causing the processing of on-screen display (OSD) data of a digital video decode system having an OSD processor with embedded memory, the computer readable program code means in the article of manufacture comprising:
• computer readable program code means for causing a computer to write direct color bitmap data into said embedded memory when said OSD function comprises a direct color description mode;
• and
• computer readable program code means for causing a computer to subsequently read said direct color bitmap data from said embedded memory to an output of said OSD processor for display.