region.h File Reference

#include <libpatchwork/rect.h>
#include <stdbool.h>
#include <stdint.h>

Go to the source code of this file.

Data Structures
struct	region_t

Macros
#define	MAX_REGION_RECTS   128
#define	REGION_CREATE   {.count = 0}

Functions
static void	region_init (region_t *region)
static void	region_clear (region_t *region)
static bool	region_is_empty (const region_t *region)
static void	region_add (region_t *region, const rect_t *rect)
static void	region_subtract (region_t *region, const rect_t *subRect)
static void	region_intersect (region_t *region, region_t *out, const rect_t *clipRect)

Macro Definition Documentation

MAX_REGION_RECTS

#define MAX_REGION_RECTS   128

Definition at line 7 of file region.h.

REGION_CREATE

#define REGION_CREATE   {.count = 0}

Definition at line 15 of file region.h.

Function Documentation

region_add()

static void region_add ( region_t *  region, const rect_t *  rect  )

inlinestatic

Definition at line 32 of file region.h.

References region_t::count, MAX_REGION_RECTS, RECT_AREA, RECT_EXPAND_TO_CONTAIN, RECT_OVERLAP, and region_t::rects.

Referenced by compositor_invalidate(), region_intersect(), region_subtract(), and screen_invalidate().

region_clear()

static void region_clear ( region_t *  region )

inlinestatic

Definition at line 22 of file region.h.

References region_t::count.

Referenced by compositor_draw_all(), compositor_draw_fullscreen(), region_intersect(), screen_swap(), and screen_transfer_frontbuffer().

region_init()

static void region_init ( region_t *  region )

inlinestatic

Definition at line 17 of file region.h.

References region_t::count.

Referenced by screen_init().

region_intersect()

static void region_intersect ( region_t *  region, region_t *  out, const rect_t *  clipRect  )

inlinestatic

Definition at line 86 of file region.h.

References region_t::count, RECT_AREA, RECT_INTERSECT, region_t::rects, region_add(), and region_clear().

Referenced by compositor_draw_fullscreen(), and compositor_draw_surface().

region_is_empty()

static bool region_is_empty ( const region_t *  region )

inlinestatic

Definition at line 27 of file region.h.

References region_t::count.

Referenced by compositor_draw_all(), compositor_draw_fullscreen(), and compositor_draw_surface().

region_subtract()

static void region_subtract ( region_t *  region, const rect_t *  subRect  )

inlinestatic

Definition at line 69 of file region.h.

References rect_subtract_t::count, region_t::count, RECT_SUBTRACT, rect_subtract_t::rects, region_t::rects, region_add(), and REGION_CREATE.

Referenced by compositor_draw_surface().