diff options
| -rw-r--r-- | meta/recipes-graphics/mesa/mesa-demos/0010-sharedtex_mt-fix-rendering-thread-hang.patch | 43 | ||||
| -rw-r--r-- | meta/recipes-graphics/mesa/mesa-demos_8.2.0.bb | 1 |
2 files changed, 44 insertions, 0 deletions
diff --git a/meta/recipes-graphics/mesa/mesa-demos/0010-sharedtex_mt-fix-rendering-thread-hang.patch b/meta/recipes-graphics/mesa/mesa-demos/0010-sharedtex_mt-fix-rendering-thread-hang.patch new file mode 100644 index 0000000000..04e1b446f3 --- /dev/null +++ b/meta/recipes-graphics/mesa/mesa-demos/0010-sharedtex_mt-fix-rendering-thread-hang.patch @@ -0,0 +1,43 @@ +From 525fa9ded72d22b53c5eb366f61e2ac1d407a2db Mon Sep 17 00:00:00 2001 +From: Awais Belal <awais_belal@mentor.com> +Date: Thu, 8 Oct 2015 13:49:31 +0500 +Subject: [PATCH] sharedtex_mt: fix rendering thread hang + +XNextEvent is a blocking call which locks up the display mutex +this causes the rendering threads to hang when they try call +glXSwapBuffers() as that tries to take the same mutex in +underlying calls through XCopyArea(). +So we only go to XNextEvent when it has at least one event +and we wouldn't lock indefinitely. + +Signed-off-by: Awais Belal <awais_belal@mentor.com> +Upstream-Status: Backport (2b304e765695d385fd3bf414e6e444020bedb0a8) + +--- + src/xdemos/sharedtex_mt.c | 9 +++++++-- + 1 file changed, 7 insertions(+), 2 deletions(-) + +diff --git a/src/xdemos/sharedtex_mt.c b/src/xdemos/sharedtex_mt.c +index a90903a..1d503c4 100644 +--- a/src/xdemos/sharedtex_mt.c ++++ b/src/xdemos/sharedtex_mt.c +@@ -420,9 +420,14 @@ Resize(struct window *h, unsigned int width, unsigned int height) + static void + EventLoop(void) + { ++ int i; ++ XEvent event; + while (1) { +- int i; +- XEvent event; ++ /* Do we have an event? */ ++ if (XPending(gDpy) == 0) { ++ usleep(10000); ++ continue; ++ } + XNextEvent(gDpy, &event); + for (i = 0; i < NumWindows; i++) { + struct window *h = &Windows[i]; +-- +1.9.1 + diff --git a/meta/recipes-graphics/mesa/mesa-demos_8.2.0.bb b/meta/recipes-graphics/mesa/mesa-demos_8.2.0.bb index e4516425e2..0094f556f9 100644 --- a/meta/recipes-graphics/mesa/mesa-demos_8.2.0.bb +++ b/meta/recipes-graphics/mesa/mesa-demos_8.2.0.bb @@ -19,6 +19,7 @@ SRC_URI = "ftp://ftp.freedesktop.org/pub/mesa/demos/${PV}/${BPN}-${PV}.tar.bz2 \ file://0007-Install-few-more-test-programs.patch \ file://0008-glsl-perf-Add-few-missing-.glsl-.vert-.frag-files-to.patch \ file://0009-glsl-perf-Install-.glsl-.vert-.frag-files.patch \ + file://0010-sharedtex_mt-fix-rendering-thread-hang.patch \ " SRC_URI[md5sum] = "72613a2c8c013716db02e3ff59d29061" SRC_URI[sha256sum] = "e4bfecb5816ddd4b7b37c1bc876b63f1f7f06fda5879221a9774d0952f90ba92" |