diff options
| -rw-r--r-- | src/fb.c | 2 | ||||
| -rw-r--r-- | src/fb.h | 6 | ||||
| -rw-r--r-- | src/modules/montage/montage.c | 1 |
3 files changed, 9 insertions, 0 deletions
@@ -191,6 +191,7 @@ static inline _fb_page_t * _fb_page_get(fb_t *fb) pthread_mutex_unlock(&fb->inactive_mutex); page->next = NULL; + page->public_page.fragment.zeroed = 0; return page; } @@ -329,6 +330,7 @@ int fb_fragment_slice_single(const fb_fragment_t *fragment, unsigned n_fragments res_fragment->stride = fragment->stride; res_fragment->pitch = fragment->pitch; res_fragment->number = number; + res_fragment->zeroed = fragment->zeroed; return 1; } @@ -19,6 +19,7 @@ typedef struct fb_fragment_t { unsigned stride; /* number of bytes from the end of one row to the start of the next */ unsigned pitch; /* number of bytes separating y from y + 1, including any padding */ unsigned number; /* this fragment's number as produced by fragmenting */ + unsigned zeroed:1; /* if this fragment has been zeroed since last flip */ } fb_fragment_t; /* This is a page handle object for page flip submission/life-cycle. @@ -92,9 +93,14 @@ static inline void fb_fragment_zero(fb_fragment_t *fragment) { void *buf = fragment->buf; + if (fragment->zeroed) + return; + /* TODO: there should be a fast-path for non-divided fragments where there's no stride to skip */ for (int y = 0; y < fragment->height; y++, buf += fragment->pitch) memset(buf, 0, fragment->pitch - fragment->stride); + + fragment->zeroed = 1; } #endif diff --git a/src/modules/montage/montage.c b/src/modules/montage/montage.c index d7dd55f..99c3e66 100644 --- a/src/modules/montage/montage.c +++ b/src/modules/montage/montage.c @@ -146,6 +146,7 @@ static int montage_fragment_tile(const fb_fragment_t *fragment, unsigned tile_wi res_fragment->stride = fragment->stride + ((fragment->width - res_fragment->width) * 4); res_fragment->pitch = fragment->pitch; res_fragment->number = number; + res_fragment->zeroed = fragment->zeroed; return 1; } |