Trait VramRegionSource 

pub trait VramRegionSource {
    // Required methods
    fn alloc_page_run(
        &mut self,
        count: u16,
        depth: TextureDepth,
        page_y: u16,
    ) -> Option<(TexturePage, VramHandle)>;
    fn alloc_clut(&mut self, entries: u16) -> Option<(Clut, VramHandle)>;
}

Source of VRAM regions for crates that should not depend on the whole VramAllocator type (e.g. psx-font). VramAllocator implements it.

Required Methods

fn alloc_page_run( &mut self, count: u16, depth: TextureDepth, page_y: u16, ) -> Option<(TexturePage, VramHandle)>

Reserve count contiguous texture pages at page row page_y (0 or 256), returning the base TexturePage and a free handle.

fn alloc_clut(&mut self, entries: u16) -> Option<(Clut, VramHandle)>

Reserve a CLUT of entries palette slots (16 for 4bpp, 256 for 8bpp).

Implementors

impl<const ROOM_PAGES: usize, const CLUT_ROWS: usize> VramRegionSource for VramAllocator<ROOM_PAGES, CLUT_ROWS>