Patent ID: 6697074
Filing Date: 2004-02-24
Classification: G06T

Abstract:
A graphics system command stream for use in a graphics system having an internal frame buffer and plurality of pixel engine registers within a graphics pipeline, the graphics system command stream being operable upon execution to set said internal frame buffer, said graphics system command stream comprising:a stream command 0x614F providing access to said registers and defining a pixel engine copy clear alpha/red command that designates a first register of said plurality of pixel engine registers which contains an alpha value and a red value, herein said first register includes a 1-byte pad, a 1-byte alpha value and a 1-byte red value; a stream command 0x6150 providing access to said registers and defining a pixel engine copy clear greenlblue command that designates a second regis er of said plurality of pixel engine registers which contains a green value and a blue value, wherein said second register includes a 1-byte pad, a 1-byte green value and a 1-byte blue value; and a stream command 0x6151 providing access to said registers and defining a pixel engine copy clear z command that designates a third register of said plurality of pixel engine registers which contains a 24-bit z value, wherein upon execution of the graphics command stream the embedded frame buffer is set with said alpha value, said red value, said green value, said blue and said z value.