Intel 815 Manuel D’Utilisation

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The coordinate in this instruction packet is relative to the origin (upper left corner, DWord #4) of the 
drawing rectangle defined in the GFXRENDERSTATE_DRAWING_RECTANGLE_INFO packet. The 
coordinates of the scissor rectangle do not need to be clipped to screen boundary before sent to hardware.  
 

0 31:29 

Client : 03h – Rendering Engine 

 28:24 

3DStateMWNP (Non-pipelined) : 1Dh 

 23:16 

Opcode : 81h  

 15:0 

DWORD_LENGTH : 1 

1 31:16 

Ymin: Y coordinate of upper left corner. Only the lower 10 bits is used by hardware. 
This value is pixel-aligned, U10 format, and reference to the origin (unclipped upper-
left corner) of the drawing rectangle. 

 15:0 

Xmin: X coordinate of upper left corner. Only the lower 11 bits is used by hardware. 
This value is pixel aligned, U11 format, and reference to the origin (unclipped upper-
left corner) of the drawing rectangle. 

2 31:16 

Ymax: Y coordinate of lower right corner. Only the lower 10 bits is used by hardware. 
This value is pixel-aligned, U10 format, and reference to the origin (unclipped upper-
left corner) of the drawing rectangle. 

 15:0 

Xmax: X coordinate of lower right corner. Only the lower 11 bits is used by hardware. 
This value is pixel-aligned, U11 format, and reference to the origin (unclipped upper-
left corner) of the drawing rectangle.