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c/client: Ensure that EGL_ANDROID_native_fence_sync

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This commit is contained in:
Jakob Bornecrantz 2021-01-08 14:10:38 +00:00
parent 7a030e36ae
commit eea8036e91
1 changed files with 74 additions and 0 deletions
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74
src/xrt/compositor/client/comp_egl_glue.c
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@ -42,6 +42,13 @@ static enum u_logging_level ll;
DEBUG_GET_ONCE_LOG_OPTION(egl_log, "EGL_LOG", U_LOGGING_INFO)
#ifdef XRT_OS_ANDROID
typedef const char *
EGLAPIENTRY (*PFNEGLQUERYSTRINGIMPLEMENTATIONANDROIDPROC)(EGLDisplay dpy,
EGLint name);
#endif
// Not forward declared by mesa
typedef EGLBoolean EGLAPIENTRY (*PFNEGLMAKECURRENTPROC)(EGLDisplay dpy,
EGLSurface draw,
@ -58,6 +65,13 @@ struct client_egl_compositor
EGLDisplay dpy;
};
/*
*
* Helper functions.
*
*/
/*!
* Down-cast helper.
* @protected @memberof client_egl_compositor
@ -68,6 +82,59 @@ client_egl_compositor(struct xrt_compositor *xc)
return (struct client_egl_compositor *)xc;
}
XRT_MAYBE_UNUSED static bool
has_extension(const char *extensions, const char *ext)
{
const char *loc = NULL;
const char *terminator = NULL;
if (extensions == NULL) {
return false;
}
while (1) {
loc = strstr(extensions, ext);
if (loc == NULL) {
return false;
}
terminator = loc + strlen(ext);
if ((loc == extensions || *(loc - 1) == ' ') &&
(*terminator == ' ' || *terminator == '\0')) {
return true;
}
extensions = terminator;
}
}
static void
ensure_native_fence_is_loaded(EGLDisplay dpy,
PFNEGLGETPROCADDRESSPROC get_gl_procaddr)
{
#ifdef XRT_OS_ANDROID
// clang-format off
PFNEGLQUERYSTRINGIMPLEMENTATIONANDROIDPROC eglQueryStringImplementationANDROID;
// clang-format on
eglQueryStringImplementationANDROID =
(PFNEGLQUERYSTRINGIMPLEMENTATIONANDROIDPROC)get_gl_procaddr(
"eglQueryStringImplementationANDROID");
// On Android, EGL_ANDROID_native_fence_sync only shows up in this
// extension list, not the normal one.
const char *ext =
eglQueryStringImplementationANDROID(dpy, EGL_EXTENSIONS);
if (!has_extension(ext, "EGL_ANDROID_native_fence_sync")) {
return;
}
GLAD_EGL_ANDROID_native_fence_sync = true;
glad_eglDupNativeFenceFDANDROID =
(PFNEGLDUPNATIVEFENCEFDANDROIDPROC)get_gl_procaddr(
"eglDupNativeFenceFDANDROID");
#endif
}
/*
*
@ -121,6 +188,10 @@ insert_fence(struct xrt_compositor *xc, xrt_graphics_sync_handle_t *out_handle)
*out_handle = XRT_GRAPHICS_SYNC_HANDLE_INVALID;
EGLDisplay dpy = ceglc->dpy;
if (!GLAD_EGL_ANDROID_native_fence_sync) {
return XRT_SUCCESS;
}
#ifdef XRT_GRAPHICS_SYNC_HANDLE_IS_FD
EGLSyncKHR sync =
@ -167,6 +238,9 @@ xrt_gfx_provider_create_gl_egl(struct xrt_compositor_native *xcn,
gladLoadEGL(display, get_gl_procaddr);
// On Android this extension is 'hidden'.
ensure_native_fence_is_loaded(display, get_gl_procaddr);
// Save old display, context and drawables.
struct old_helper old = old_save();