jpeg pushed a commit to branch master.
http://git.enlightenment.org/core/efl.git/commit/?id=62ca4486ea30fd63a5589ea7af373a5cb9982031
commit 62ca4486ea30fd63a5589ea7af373a5cb9982031
Author: Jean-Philippe Andre <jp.an...@samsung.com>
Date: Tue Oct 18 17:36:43 2016 +0900
wayland_shm: Add swap mode fallback when buffer age changes
This copies the behaviour in opengl_x11 engine, where the buffer
age needs to be continuously the same to be taken into account.
If the age varies, then we fallback to a full redraw.
Apparently this fixes issues on actual devices. I tested this
patch in weston (I didn't have issues before and buffer age is 1).
---
src/modules/evas/engines/wayland_shm/evas_engine.h | 1 +
src/modules/evas/engines/wayland_shm/evas_outbuf.c | 15 ++++++++++-----
2 files changed, 11 insertions(+), 5 deletions(-)
diff --git a/src/modules/evas/engines/wayland_shm/evas_engine.h
b/src/modules/evas/engines/wayland_shm/evas_engine.h
index 7436c6b..bae4e37 100644
--- a/src/modules/evas/engines/wayland_shm/evas_engine.h
+++ b/src/modules/evas/engines/wayland_shm/evas_engine.h
@@ -107,6 +107,7 @@ struct _Outbuf
int rotation;
int onebuf;
int num_buff;
+ int prev_age;
Outbuf_Depth depth;
Evas_Engine_Info_Wayland_Shm *info;
diff --git a/src/modules/evas/engines/wayland_shm/evas_outbuf.c
b/src/modules/evas/engines/wayland_shm/evas_outbuf.c
index 6dafa85..b372864 100644
--- a/src/modules/evas/engines/wayland_shm/evas_outbuf.c
+++ b/src/modules/evas/engines/wayland_shm/evas_outbuf.c
@@ -314,17 +314,22 @@ _evas_outbuf_flush(Outbuf *ob, Tilebuf_Rect *rects
EINA_UNUSED, Evas_Render_Mode
Render_Engine_Swap_Mode
_evas_outbuf_swap_mode_get(Outbuf *ob)
{
+ Render_Engine_Swap_Mode mode;
int age;
LOGFN(__FILE__, __LINE__, __FUNCTION__);
age = ob->surface->funcs.assign(ob->surface);
- if (age == 1) return MODE_COPY;
- else if (age == 2) return MODE_DOUBLE;
- else if (age == 3) return MODE_TRIPLE;
- else if (age == 4) return MODE_QUADRUPLE;
+ if (age == 1) mode = MODE_COPY;
+ else if (age == 2) mode = MODE_DOUBLE;
+ else if (age == 3) mode = MODE_TRIPLE;
+ else if (age == 4) mode = MODE_QUADRUPLE;
+ else mode = MODE_FULL;
- return MODE_FULL;
+ if (ob->prev_age != age) mode = MODE_FULL;
+ ob->prev_age = age;
+
+ return mode;
}
int
--
