Intel 815 manual Invert Color Arg2

Models: 815

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Intel® 815 Chipset: Graphics Controller PRM, Rev 1.0

R

Dword

0

Bit

Description

6Invert Color Arg2:

0 = Do not Invert Argument

1 = Invert Argument

5Color Operation Mask : 0 = Do not update; 1 = Update

4:0 Color Operation: Valid values are :

00h = The user must explicitly disable each blend stage that is not used. Note: The user must ensure that if a blend stage is disabled, all higher number blend stages must be disabled too. E.g. It is invalid to disable stage 2 and use only stages 1 and 3.

(This bit disables/enables both the color and the corresponding alpha stage)

01h = Select Arg1

02h = Select Arg2

03h = Modulate

04h = Modulate and Multiply by 2

05h = Modulate and Multiply by 4

06h = Add

07h = Add Signed

08h = Linearly Blend using the Iterated Alpha as the Blend Term 09h = Reserved

0Ah = Linearly Blend using the Alpha Factor as the Blend Term

0Bh = Reserved (Linearly Blend when a pre-multiplied map alpha is present) 0Ch = Reserved (Pre-modulate)

0Ch = Reserved (Bump/Environment Map)

0Dh = Reserved (Bump pre-modulate with luminance channel) 0Fh = Reserved

10h = Linearly Blend using Texel0’s Alpha as the Blend Term 11h = Linearly Blend using Texel1’s Alpha as the Blend Term 12h = Linearly Blend using Texel0’s Color as the Blend Term 13h = Linearly Blend using Texel1’s Color as the Blend Term 14h = Subtract (Arg1 - Arg2)

15h=1Fh – Reserved

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Page 229
Image 229
Intel 815 manual Invert Color Arg2