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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>
This commit is contained in:
Vivek Kasireddy 2021-09-14 14:18:34 -07:00 committed by Gerd Hoffmann
parent 89faed62af
commit 121abaf3e6
3 changed files with 30 additions and 0 deletions
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2
include/ui/console.h
View File

@ -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;

2
include/ui/egl-helpers.h
View File

@ -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

26
ui/egl-helpers.c
View File

@ -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 */
/* ---------------------------------------------------------------------- */