A Sample Calculation
Worst case blending
- Color Src * Src Factor + Color Dest * Dst Factor
2 Color Mults, 1 Color Add
Mult gate cost
- #Mult Ops * MULTF* 4 * (CPW * CPW)
- Need ‘4’ multiplier since we have 4 color components (RGBA) being computed in parallel
Adder gate Cost
- #Add Ops * ADDF * 4 * CPW