diff options
| -rw-r--r-- | src/mem_fb.c | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/src/mem_fb.c b/src/mem_fb.c index 2dfa5bb..fc9406b 100644 --- a/src/mem_fb.c +++ b/src/mem_fb.c @@ -11,7 +11,7 @@ typedef struct mem_fb_page_t mem_fb_page_t; struct mem_fb_page_t { - void *unused; + mem_fb_page_t *next_spare; uint32_t buf[]; }; @@ -22,6 +22,7 @@ typedef struct mem_fb_setup_t { typedef struct mem_fb_t { mem_fb_setup_t setup; + mem_fb_page_t *spare_pages; } mem_fb_t; @@ -90,9 +91,15 @@ _err: static void mem_fb_shutdown(til_fb_t *fb, void *context) { mem_fb_t *c = context; + mem_fb_page_t *p; assert(c); + while ((p = c->spare_pages)) { + c->spare_pages = p->next_spare; + free(p); + } + free(c); } @@ -111,11 +118,18 @@ static void mem_fb_release(til_fb_t *fb, void *context) static void * mem_fb_page_alloc(til_fb_t *fb, void *context, til_fb_fragment_t *res_fragment) { mem_fb_t *c = context; - mem_fb_page_t *p; + mem_fb_page_t *p = NULL; - p = calloc(1, sizeof(mem_fb_page_t) + c->setup.width * c->setup.height * sizeof(uint32_t)); - if (!p) - return NULL; + if (c->spare_pages) { + p = c->spare_pages; + c->spare_pages = p->next_spare; + } + + if (!p) { + p = calloc(1, sizeof(mem_fb_page_t) + c->setup.width * c->setup.height * sizeof(uint32_t)); + if (!p) + return NULL; + } *res_fragment = (til_fb_fragment_t){ .buf = p->buf, @@ -132,9 +146,11 @@ static void * mem_fb_page_alloc(til_fb_t *fb, void *context, til_fb_fragment_t * static int mem_fb_page_free(til_fb_t *fb, void *context, void *page) { + mem_fb_t *c = context; mem_fb_page_t *p = page; - free(p); + p->next_spare = c->spare_pages; + c->spare_pages = p; return 0; } |