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HAL_VideoVetMode (changes)

Showing changes from revision #3 to #4: Added | ~~Removed~~ | ~~Chan~~ged

Hardware Abstraction Layer

HAL entry points from RISC OS

» HAL_Video_VetMode HAL_VideoVetMode

HAL_Video_VetMode HAL_VideoVetMode

(HAL entry #48)

  int HAL_Video_VetMode(const HAL_VideoVetMode(const void *VIDClist, const void *workspace)

Entry
VIDClist	Generic video controller list (VIDC List Type 3)
workspace	Mode workspace (if mode number), or 0

Exit
-	Returns 0 if OK (may be minor adjusts to VIDClist and/or workspace values)
-	Non-zero if not OK

Use

This is an internal call for OS use only and should not be used by user software. User software should use GraphicsV instead of interacting with the HAL directly.

Allows HAL to vet a proposed mode.

(What does this really do, and what can HAL do. Are we going to allow changes to VIDCList by HAL, ie. not const. Is mode workspace really ok to pass to HAL ???)

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