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fix leaks in sprites plus fast sprite allocation

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This commit is contained in:
Andre Leiradella 2015-06-15 01:55:30 -03:00
parent 0808fc7b16
commit 0003279d93
1 changed files with 96 additions and 24 deletions
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120
src/rl_sprite.c
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@ -4,6 +4,14 @@
#include <stdlib.h>
typedef union item_t item_t;
union item_t
{
rl_sprite_t sprite;
item_t* next;
};
typedef struct
{
rl_sprite_t* sprite;
@ -11,15 +19,53 @@ typedef struct
}
spt_t;
static spt_t sprites[ RL_MAX_SPRITES + 1 ];
static int num_sprites, num_visible;
static int x0, y0;
static item_t items[ RL_MAX_SPRITES ];
static item_t* free_list;
static spt_t sprites[ RL_MAX_SPRITES + 1 ];
static int num_sprites, num_visible;
static int x0, y0;
static uint16_t saved_backgrnd[ RL_BG_SAVE_SIZE ];
static uint16_t* saved_ptr;
static const rl_sprite_t guard =
{
#if RL_USERDATA_COUNT <= 1
0,
#elif RL_USERDATA_COUNT <= 2
0,
#elif RL_USERDATA_COUNT <= 3
0,
#elif RL_USERDATA_COUNT <= 4
0,
#elif RL_USERDATA_COUNT <= 5
0,
#elif RL_USERDATA_COUNT <= 6
0,
#elif RL_USERDATA_COUNT <= 7
0,
#elif RL_USERDATA_COUNT <= 8
0,
#else
#error add more comparisons (or: do you really need that many userdata?)
#endif
0,
RL_SPRITE_UNUSED,
0,
0,
NULL
};
void rl_sprite_init( void )
{
for ( int i = 0; i < RL_MAX_SPRITES - 1; i++ )
{
items[ i ].next = items + i + 1;
}
items[ RL_MAX_SPRITES - 1 ].next = NULL;
free_list = items;
num_sprites = num_visible = 0;
x0 = y0 = 0;
}
@ -28,18 +74,16 @@ rl_sprite_t* rl_sprite_create( void )
{
if ( num_sprites < RL_MAX_SPRITES )
{
rl_sprite_t* sprite = (rl_sprite_t*)rl_malloc( sizeof( rl_sprite_t ) );
rl_sprite_t* sprite = &free_list->sprite;
free_list = free_list->next;
if ( sprite )
{
sprites[ num_sprites++ ].sprite = sprite;
sprite->layer = sprite->flags = 0;
sprite->x = sprite->y = 0;
sprite->image = NULL;
return sprite;
}
sprites[ num_sprites++ ].sprite = sprite;
sprite->layer = sprite->flags = 0;
sprite->x = sprite->y = 0;
sprite->image = NULL;
return sprite;
}
return NULL;
@ -82,10 +126,7 @@ void rl_sprites_blit_nobg( void )
}
qsort( (void*)sprites, num_sprites, sizeof( spt_t ), compare );
rl_sprite_t guard;
guard.flags = RL_SPRITE_UNUSED;
sprites[ num_sprites ].sprite = &guard; /* guard */
sprites[ num_sprites ].sprite = &guard;
sptptr = sprites;
@ -114,7 +155,24 @@ void rl_sprites_blit_nobg( void )
while ( ( sptptr->sprite->flags & RL_SPRITE_UNUSED ) == 0 );
}
num_sprites = sptptr - sprites;
int new_num_sprites = sptptr - sprites;
/* Iterate over unused sprites and free them */
/* flags & 0x0004U == 0x0004U */
endptr = sprites + num_sprites;
if ( sptptr < endptr )
{
do
{
item_t* item = (item_t*)sptptr->sprite;
item->next = free_list;
free_list = item;
}
while ( sptptr < endptr );
}
num_sprites = new_num_sprites;
}
void rl_sprites_blit( void )
@ -134,10 +192,7 @@ void rl_sprites_blit( void )
}
qsort( (void*)sprites, num_sprites, sizeof( spt_t ), compare );
rl_sprite_t guard;
guard.flags = RL_SPRITE_UNUSED;
sprites[ num_sprites ].sprite = &guard; /* guard */
sprites[ num_sprites ].sprite = &guard;
sptptr = sprites;
saved_ptr = saved_backgrnd;
@ -168,7 +223,24 @@ void rl_sprites_blit( void )
while ( ( sptptr->sprite->flags & RL_SPRITE_UNUSED ) == 0 );
}
num_sprites = sptptr - sprites;
int new_num_sprites = sptptr - sprites;
/* Iterate over unused sprites and free them */
/* flags & 0x0004U == 0x0004U */
endptr = sprites + num_sprites;
if ( sptptr < endptr )
{
do
{
item_t* item = (item_t*)sptptr->sprite;
item->next = free_list;
free_list = item;
}
while ( sptptr < endptr );
}
num_sprites = new_num_sprites;
}
void rl_sprites_unblit( void )