tex-invalid

Description

This program does the test for the texture cache invalidation function. The eight cache regions have a one-to-one correspondences to the eight texture objects. Each texture object uses only one dedicated region (for example, texobj 0 uses cache 0 and texobj1 uses cache 1). Textured quads are drawn five times by using each texture object while image data in main memory is overwritten by other data after drawing each quad. You can control whether cache invalidation should be done before drawing the next quad and whether to reflect the overwritten image. As for the fifth quad, GXInvalidateTexAll is called and so always reflects the overwritten image.

Coverage

Function	Parameters	Description
`GXInitTexObj`	Pointer to image data.	Appropriate value.
	Width and height	Fixed.
	Format	Always GX_RGB565.
	Wrap mode (s, t)	Always `GX_REPEAT`.
	Mipmap	Always GX_TRUE.
`GXInitTexObjUserData`	User data pointer.	Integer ID numbers
`GXGetTexObjUserData`	(No parameter)
`GXLoadTexObj`	Destination texture name	Always `GX_TEXMAP0`.
`GXInitTexCacheRegion`	32-bit mipmap flag.	Always `GX_FALSE`.
	TMEM address (even, odd).	Appropriate lower bank address (even) Appropriate higher bank address (odd)
	Cache size (even, odd).	Always `GX_TEXCACHE_32K`.
`GXSetTexRegionCallBack`	Callback Functions	One function
`GXInvalidateTexRegion`	Texture region	Appropriate cache regions
`GXInvalidateTexAll`	(No parameter)
`GXSetTevOp`	TEV stage ID	GX_TEVSTAGE0
`GXSetTevOp`	Operation mode	GX_REPLACE