Module AS_CTRL

Alpha Surface Control

Modules

• ALPHA
  Alpha modifier used when the ALPHA_MULTIPLY or ALPHA_OVERRIDE values are programmed in PXP_AS_CTRL[ALPHA_CTRL]
• ALPHA_CTRL
  Determines how the alpha value is constructed for this alpha surface
• ALPHA_INVERT
  Setting this bit to logic 0 will not alter the alpha value
• ENABLE_COLORKEY
  Indicates that colorkey functionality is enabled for this alpha surface
• FORMAT
  Indicates the input buffer format for AS.
• ROP
  Indicates a raster operation to perform when enabled