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#ifndef SNA_DAMAGE_H
#define SNA_DAMAGE_H
#include <regionstr.h>
#include "compiler.h"
struct sna_damage {
BoxRec extents;
pixman_region16_t region;
enum sna_damage_mode {
DAMAGE_ADD = 0,
DAMAGE_SUBTRACT,
DAMAGE_ALL,
} mode;
int remain, dirty;
BoxPtr box;
struct {
struct list list;
int size;
BoxRec box[8];
} embedded_box;
};
#define DAMAGE_IS_ALL(ptr) (((uintptr_t)(ptr))&1)
#define DAMAGE_MARK_ALL(ptr) ((struct sna_damage *)(((uintptr_t)(ptr))|1))
#define DAMAGE_PTR(ptr) ((struct sna_damage *)(((uintptr_t)(ptr))&~1))
struct sna_damage *sna_damage_create(void);
struct sna_damage *_sna_damage_combine(struct sna_damage *l,
struct sna_damage *r,
int dx, int dy);
static inline void sna_damage_combine(struct sna_damage **l,
struct sna_damage *r,
int dx, int dy)
{
assert(!DAMAGE_IS_ALL(*l));
*l = _sna_damage_combine(*l, DAMAGE_PTR(r), dx, dy);
}
fastcall struct sna_damage *_sna_damage_add(struct sna_damage *damage,
RegionPtr region);
static inline void sna_damage_add(struct sna_damage **damage,
RegionPtr region)
{
assert(!DAMAGE_IS_ALL(*damage));
*damage = _sna_damage_add(*damage, region);
}
fastcall struct sna_damage *_sna_damage_add_box(struct sna_damage *damage,
const BoxRec *box);
static inline void sna_damage_add_box(struct sna_damage **damage,
const BoxRec *box)
{
assert(!DAMAGE_IS_ALL(*damage));
*damage = _sna_damage_add_box(*damage, box);
}
struct sna_damage *_sna_damage_add_boxes(struct sna_damage *damage,
const BoxRec *box, int n,
int16_t dx, int16_t dy);
static inline void sna_damage_add_boxes(struct sna_damage **damage,
const BoxRec *box, int n,
int16_t dx, int16_t dy)
{
assert(!DAMAGE_IS_ALL(*damage));
*damage = _sna_damage_add_boxes(*damage, box, n, dx, dy);
}
struct sna_damage *_sna_damage_add_rectangles(struct sna_damage *damage,
const xRectangle *r, int n,
int16_t dx, int16_t dy);
static inline void sna_damage_add_rectangles(struct sna_damage **damage,
const xRectangle *r, int n,
int16_t dx, int16_t dy)
{
if (damage) {
assert(!DAMAGE_IS_ALL(*damage));
*damage = _sna_damage_add_rectangles(*damage, r, n, dx, dy);
}
}
struct sna_damage *_sna_damage_add_points(struct sna_damage *damage,
const DDXPointRec *p, int n,
int16_t dx, int16_t dy);
static inline void sna_damage_add_points(struct sna_damage **damage,
const DDXPointRec *p, int n,
int16_t dx, int16_t dy)
{
if (damage) {
assert(!DAMAGE_IS_ALL(*damage));
*damage = _sna_damage_add_points(*damage, p, n, dx, dy);
}
}
struct sna_damage *_sna_damage_is_all(struct sna_damage *damage,
int width, int height);
static inline bool sna_damage_is_all(struct sna_damage **_damage,
int width, int height)
{
struct sna_damage *damage = *_damage;
if (damage == NULL)
return false;
if (DAMAGE_IS_ALL(damage))
return true;
switch (damage->mode) {
case DAMAGE_ALL:
assert(0);
return true;
case DAMAGE_SUBTRACT:
return false;
default:
assert(0);
case DAMAGE_ADD:
if (damage->extents.x2 < width || damage->extents.x1 > 0)
return false;
if (damage->extents.y2 < height || damage->extents.y1 > 0)
return false;
damage = _sna_damage_is_all(damage, width, height);
if (damage->mode == DAMAGE_ALL) {
*_damage = DAMAGE_MARK_ALL(damage);
return true;
} else {
*_damage = damage;
return false;
}
}
}
struct sna_damage *__sna_damage_all(struct sna_damage *damage,
int width, int height);
static inline struct sna_damage *
_sna_damage_all(struct sna_damage *damage,
int width, int height)
{
damage = __sna_damage_all(damage, width, height);
return DAMAGE_MARK_ALL(damage);
}
static inline void sna_damage_all(struct sna_damage **damage,
int width, int height)
{
if (!DAMAGE_IS_ALL(*damage))
*damage = _sna_damage_all(*damage, width, height);
}
fastcall struct sna_damage *_sna_damage_subtract(struct sna_damage *damage,
RegionPtr region);
static inline void sna_damage_subtract(struct sna_damage **damage,
RegionPtr region)
{
*damage = _sna_damage_subtract(DAMAGE_PTR(*damage), region);
assert(*damage == NULL || (*damage)->mode != DAMAGE_ALL);
}
fastcall struct sna_damage *_sna_damage_subtract_box(struct sna_damage *damage,
const BoxRec *box);
static inline void sna_damage_subtract_box(struct sna_damage **damage,
const BoxRec *box)
{
*damage = _sna_damage_subtract_box(DAMAGE_PTR(*damage), box);
assert(*damage == NULL || (*damage)->mode != DAMAGE_ALL);
}
fastcall struct sna_damage *_sna_damage_subtract_boxes(struct sna_damage *damage,
const BoxRec *box, int n,
int dx, int dy);
static inline void sna_damage_subtract_boxes(struct sna_damage **damage,
const BoxRec *box, int n,
int dx, int dy)
{
*damage = _sna_damage_subtract_boxes(DAMAGE_PTR(*damage),
box, n, dx, dy);
assert(*damage == NULL || (*damage)->mode != DAMAGE_ALL);
}
bool _sna_damage_intersect(struct sna_damage *damage,
RegionPtr region, RegionPtr result);
static inline bool sna_damage_intersect(struct sna_damage *damage,
RegionPtr region, RegionPtr result)
{
assert(damage);
assert(RegionNotEmpty(region));
assert(!DAMAGE_IS_ALL(damage));
return _sna_damage_intersect(damage, region, result);
}
static inline bool
sna_damage_overlaps_box(const struct sna_damage *damage,
const BoxRec *box)
{
if (box->x2 <= damage->extents.x1 ||
box->x1 >= damage->extents.x2)
return false;
if (box->y2 <= damage->extents.y1 ||
box->y1 >= damage->extents.y2)
return false;
return true;
}
int _sna_damage_contains_box(struct sna_damage *damage,
const BoxRec *box);
static inline int sna_damage_contains_box(struct sna_damage *damage,
const BoxRec *box)
{
if (DAMAGE_IS_ALL(damage))
return PIXMAN_REGION_IN;
return _sna_damage_contains_box(damage, box);
}
static inline int sna_damage_contains_box__offset(struct sna_damage *damage,
const BoxRec *box, int dx, int dy)
{
BoxRec b;
if (DAMAGE_IS_ALL(damage))
return PIXMAN_REGION_IN;
b = *box;
b.x1 += dx; b.x2 += dx;
b.y1 += dy; b.y2 += dy;
return _sna_damage_contains_box(damage, &b);
}
bool _sna_damage_contains_box__no_reduce(const struct sna_damage *damage,
const BoxRec *box);
static inline bool
sna_damage_contains_box__no_reduce(const struct sna_damage *damage,
const BoxRec *box)
{
assert(!DAMAGE_IS_ALL(damage));
return _sna_damage_contains_box__no_reduce(damage, box);
}
int _sna_damage_get_boxes(struct sna_damage *damage, BoxPtr *boxes);
static inline int
sna_damage_get_boxes(struct sna_damage *damage, BoxPtr *boxes)
{
assert(damage);
if (DAMAGE_IS_ALL(damage)) {
*boxes = &DAMAGE_PTR(damage)->extents;
return 1;
} else
return _sna_damage_get_boxes(damage, boxes);
}
struct sna_damage *_sna_damage_reduce(struct sna_damage *damage);
static inline void sna_damage_reduce(struct sna_damage **damage)
{
if (*damage == NULL)
return;
if (!DAMAGE_IS_ALL(*damage) && (*damage)->dirty)
*damage = _sna_damage_reduce(*damage);
}
static inline void sna_damage_reduce_all(struct sna_damage **_damage,
int width, int height)
{
struct sna_damage *damage = *_damage;
DBG(("%s(width=%d, height=%d)\n", __FUNCTION__, width, height));
if (damage == NULL || DAMAGE_IS_ALL(damage))
return;
if (damage->mode == DAMAGE_ADD) {
if (damage->extents.x1 <= 0 &&
damage->extents.y1 <= 0 &&
damage->extents.x2 >= width &&
damage->extents.y2 >= height) {
if (damage->dirty) {
damage = *_damage = _sna_damage_reduce(damage);
if (damage == NULL)
return;
}
if (damage->region.data == NULL)
*_damage = _sna_damage_all(damage, width, height);
}
} else
*_damage = _sna_damage_reduce(damage);
}
void __sna_damage_destroy(struct sna_damage *damage);
static inline void sna_damage_destroy(struct sna_damage **damage)
{
if (*damage == NULL)
return;
__sna_damage_destroy(DAMAGE_PTR(*damage));
*damage = NULL;
}
void _sna_damage_debug_get_region(struct sna_damage *damage, RegionRec *r);
#if HAS_DEBUG_FULL && TEST_DAMAGE
void sna_damage_selftest(void);
#else
static inline void sna_damage_selftest(void) {}
#endif
#endif /* SNA_DAMAGE_H */
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