Intel 815 manual Gfxrenderstatesrcdstblendmono, No Specular, Monochrome Specular Full Color RGB

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Intel® 815 Chipset: Graphics Controller PRM, Rev 1.0

R

13.16.GFXRENDERSTATE_SRC_DST_BLEND_MONO

The state variable Specular_RGB_Enable is set in the graphics command GFXRENDERSTATE_SRC_DST_BLEND_MONO. It is also dependent on the value of the state variable Specular_Enable, which is set in the graphics command

GFXRENDERSTATE_BOOLEAN_ENA_1.

Table 15.

Selecting Specular Mode

 

 

 

 

 

 

Specular RGB Enable

 

 

 

Bits [15:14] of

 

 

 

GFXRENDERSTATE_SRC_DST_BLEND_MONO

 

 

 

 

 

 

 

 

0

1

 

 

 

 

 

 

Specular Enable

0

No Specular

No Specular

 

 

 

 

 

 

Bits [9:8] of

1

Monochrome Specular

Full Color (RGB)

 

GFXRENDERSTATE_BOOLEAN_ENA_1

 

 

Specular

 

 

 

 

 

The GC 3D section of the graphics device supports alpha blend modes defined in the following state variables except where noted as “Not Implemented”.

1.RENDERSTATE_SRC_DST_BLEND

2.RENDERSTATE_BLEND_ENABLE

3.RENDERSTATE_BLEND_COLOR (Texture compositing)

RENDERSTATE_BLEND_ENABLE

1.Blending OFF

2.Blending On

Additional Blending Modes

The color calculator super-unit of the graphics device shall support four new Blending operations. The blend factors for the source and destination colors are controlled by separate state variables and shall be defined as shown below. The RGBA values of the source and destination are indicated with the subscripts s and d respectively.

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Page 235
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Intel 815 manual Gfxrenderstatesrcdstblendmono, No Specular, Monochrome Specular Full Color RGB