ra8_tile_rect_t Struct Reference

An inclusive rectangle of tile grid coordinates (the visible tiles). More...

#include <ra8_tile_cache.h>

Data Fields
uint16_t	tx0
	Leftmost visible tile column (inclusive).
uint16_t	ty0
	Topmost visible tile row (inclusive).
uint16_t	tx1
	Rightmost visible tile column (inclusive).
uint16_t	ty1
	Bottommost visible tile row (inclusive).

Detailed Description

An inclusive rectangle of tile grid coordinates (the visible tiles).

All four bounds are tile indices, inclusive. tx0 <= tx1 and ty0 <= ty1 describe the tiles the current viewport straddles; the prefetch reads the edge just beyond this rectangle.

Invariant

tx0 <= tx1 and ty0 <= ty1.

Since

0.1.0

Definition at line 199 of file ra8_tile_cache.h.

Field Documentation

tx0

uint16_t ra8_tile_rect_t::tx0

Leftmost visible tile column (inclusive).

Definition at line 200 of file ra8_tile_cache.h.

Referenced by internal_pan_line(), internal_validate_req(), and ra8_tile_rect_of_pixels().

tx1

uint16_t ra8_tile_rect_t::tx1

Rightmost visible tile column (inclusive).

Definition at line 202 of file ra8_tile_cache.h.

Referenced by internal_pan_line(), internal_validate_req(), and ra8_tile_rect_of_pixels().

ty0

uint16_t ra8_tile_rect_t::ty0

Topmost visible tile row (inclusive).

Definition at line 201 of file ra8_tile_cache.h.

Referenced by internal_pan_line(), internal_validate_req(), and ra8_tile_rect_of_pixels().

ty1

uint16_t ra8_tile_rect_t::ty1

Bottommost visible tile row (inclusive).

Definition at line 203 of file ra8_tile_cache.h.

Referenced by internal_pan_line(), internal_validate_req(), and ra8_tile_rect_of_pixels().

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The documentation for this struct was generated from the following file:

• libs/ra8_mem/inc/ra8_tile_cache.h