diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2017-04-21 11:16:30 +0200 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2017-04-24 10:12:28 +0200 |
| commit | 7fcf0c24e754cb493a1b34ceaa8b0aa1d66e91c7 (patch) | |
| tree | a5f805a77318fe57a492655f4948f7bc53fdedec /hw/display | |
| parent | 553bcce5ac405b27c8bc2a34d49f1f9aa226476f (diff) | |
g364fb: make display updates thread safe
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20170421091632.30900-8-kraxel@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'hw/display')
| -rw-r--r-- | hw/display/g364fb.c | 28 |
1 files changed, 5 insertions, 23 deletions
diff --git a/hw/display/g364fb.c b/hw/display/g364fb.c index 8cdc205dd9..86557d14a9 100644 --- a/hw/display/g364fb.c +++ b/hw/display/g364fb.c @@ -64,17 +64,8 @@ typedef struct G364State { static inline int check_dirty(G364State *s, ram_addr_t page) { - return memory_region_get_dirty(&s->mem_vram, page, G364_PAGE_SIZE, - DIRTY_MEMORY_VGA); -} - -static inline void reset_dirty(G364State *s, - ram_addr_t page_min, ram_addr_t page_max) -{ - memory_region_reset_dirty(&s->mem_vram, - page_min, - page_max + G364_PAGE_SIZE - page_min - 1, - DIRTY_MEMORY_VGA); + return memory_region_test_and_clear_dirty(&s->mem_vram, page, G364_PAGE_SIZE, + DIRTY_MEMORY_VGA); } static void g364fb_draw_graphic8(G364State *s) @@ -83,7 +74,7 @@ static void g364fb_draw_graphic8(G364State *s) int i, w; uint8_t *vram; uint8_t *data_display, *dd; - ram_addr_t page, page_min, page_max; + ram_addr_t page; int x, y; int xmin, xmax; int ymin, ymax; @@ -114,8 +105,6 @@ static void g364fb_draw_graphic8(G364State *s) } page = 0; - page_min = (ram_addr_t)-1; - page_max = 0; x = y = 0; xmin = s->width; @@ -137,9 +126,6 @@ static void g364fb_draw_graphic8(G364State *s) if (check_dirty(s, page)) { if (y < ymin) ymin = ymax = y; - if (page_min == (ram_addr_t)-1) - page_min = page; - page_max = page; if (x < xmin) xmin = x; for (i = 0; i < G364_PAGE_SIZE; i++) { @@ -196,10 +182,7 @@ static void g364fb_draw_graphic8(G364State *s) ymax = y; } else { int dy; - if (page_min != (ram_addr_t)-1) { - reset_dirty(s, page_min, page_max); - page_min = (ram_addr_t)-1; - page_max = 0; + if (xmax || ymax) { dpy_gfx_update(s->con, xmin, ymin, xmax - xmin + 1, ymax - ymin + 1); xmin = s->width; @@ -219,9 +202,8 @@ static void g364fb_draw_graphic8(G364State *s) } done: - if (page_min != (ram_addr_t)-1) { + if (xmax || ymax) { dpy_gfx_update(s->con, xmin, ymin, xmax - xmin + 1, ymax - ymin + 1); - reset_dirty(s, page_min, page_max); } } |