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authorVivek Kasireddy <vivek.kasireddy@intel.com>2021-09-14 14:18:34 -0700
committerGerd Hoffmann <kraxel@redhat.com>2021-09-15 08:41:59 +0200
commit121abaf3e68d620f7c4c1d16875de4a4b92fa8f8 (patch)
tree3259d6a1574c5ae474f1b379aa86b69ecfcb6ae1
parent89faed62af70283d5b6d38a58a1cf40535242c51 (diff)
ui/egl: Add egl helpers to help with synchronization
These egl helpers would be used for creating and waiting on a sync object. Cc: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com> Message-Id: <20210914211837.3229977-3-vivek.kasireddy@intel.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
-rw-r--r--include/ui/console.h2
-rw-r--r--include/ui/egl-helpers.h2
-rw-r--r--ui/egl-helpers.c26
3 files changed, 30 insertions, 0 deletions
diff --git a/include/ui/console.h b/include/ui/console.h
index 3be21497a2..45ec129174 100644
--- a/include/ui/console.h
+++ b/include/ui/console.h
@@ -168,6 +168,8 @@ typedef struct QemuDmaBuf {
uint64_t modifier;
uint32_t texture;
bool y0_top;
+ void *sync;
+ int fence_fd;
} QemuDmaBuf;
typedef struct DisplayState DisplayState;
diff --git a/include/ui/egl-helpers.h b/include/ui/egl-helpers.h
index f1bf8f97fc..2c3ba92b53 100644
--- a/include/ui/egl-helpers.h
+++ b/include/ui/egl-helpers.h
@@ -45,6 +45,8 @@ int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc,
void egl_dmabuf_import_texture(QemuDmaBuf *dmabuf);
void egl_dmabuf_release_texture(QemuDmaBuf *dmabuf);
+void egl_dmabuf_create_sync(QemuDmaBuf *dmabuf);
+void egl_dmabuf_create_fence(QemuDmaBuf *dmabuf);
#endif
diff --git a/ui/egl-helpers.c b/ui/egl-helpers.c
index 6d0cb2b5cb..385a3fa752 100644
--- a/ui/egl-helpers.c
+++ b/ui/egl-helpers.c
@@ -287,6 +287,32 @@ void egl_dmabuf_release_texture(QemuDmaBuf *dmabuf)
dmabuf->texture = 0;
}
+void egl_dmabuf_create_sync(QemuDmaBuf *dmabuf)
+{
+ EGLSyncKHR sync;
+
+ if (epoxy_has_egl_extension(qemu_egl_display,
+ "EGL_KHR_fence_sync") &&
+ epoxy_has_egl_extension(qemu_egl_display,
+ "EGL_ANDROID_native_fence_sync")) {
+ sync = eglCreateSyncKHR(qemu_egl_display,
+ EGL_SYNC_NATIVE_FENCE_ANDROID, NULL);
+ if (sync != EGL_NO_SYNC_KHR) {
+ dmabuf->sync = sync;
+ }
+ }
+}
+
+void egl_dmabuf_create_fence(QemuDmaBuf *dmabuf)
+{
+ if (dmabuf->sync) {
+ dmabuf->fence_fd = eglDupNativeFenceFDANDROID(qemu_egl_display,
+ dmabuf->sync);
+ eglDestroySyncKHR(qemu_egl_display, dmabuf->sync);
+ dmabuf->sync = NULL;
+ }
+}
+
#endif /* CONFIG_GBM */
/* ---------------------------------------------------------------------- */