NNS_G2dSetOamSoftEmuSpriteParamCache

Syntax

#include <nnsys/g2d/g2d_OamSoftwareSpriteDraw.h>


    void NNS_G2dSetOamSoftEmuSpriteParamCache
    ( 
        const GXOamAttr*                pOam, 
        const NNSG2dImageAttr*          pTexImageAttr,
        u32                             texBaseAddr,
        u32                             pltBaseAddr
    );

Arguments

`pOam`	[IN] OAM attribute
`pTexImageAttr`	[IN] Texture attribute
`texBaseAddr`	[IN] Texture base address
`pltBaseAddr`	[IN] Palette base address

Return Values

None.

Description

Configures the parameter cache used for software sprite rendering.
Rendering that uses this cache is performed with the NNS_G2dDrawOneOam3DDirectUsingParamCacheFast function.

The parameter in this case is the UV parameter, so when writing a large number of sprites that reference the same texture, you can perform an efficient rendering process by calculating and configuring the UV values all at once.

    NNS_G2dDrawOneOam3DDirectUsingParamCache() Rendering
        Process = UV Parameter Setting x 1 + Render x N
    Normal Rendering
        Process = ( UV Parameter Setting + Render) x N

Revision History

2004/11/10 Initial version.