sync with OpenBSD -current

2024-07-20 20:41:33 +00:00 · 2024-07-20 20:41:33 +00:00 · 2c72e27ed2
commit 2c72e27ed2
parent b5b25afdb8
147 changed files with 41128 additions and 10 deletions
--- a/lib/libva/va/drm/va_drm_auth_x11.c
+++ b/lib/libva/va/drm/va_drm_auth_x11.c
@ -0,0 +1,145 @@
+/*
+ * Copyright (c) 2012 Intel Corporation. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#define _GNU_SOURCE 1
+#include "sysdeps.h"
+#include <dlfcn.h>
+#include <X11/Xlib.h>
+#include "va_drm_auth_x11.h"
+
+typedef struct drm_auth_x11             DRMAuthX11;
+typedef struct drm_auth_x11_vtable      DRMAuthX11VTable;
+
+typedef void (*VAGenericFunc)(void);
+typedef Display *(*X11OpenDisplayFunc)(const char *display_name);
+typedef int (*X11CloseDisplayFunc)(Display *display);
+typedef Bool(*VADRI2AuthenticateFunc)(
+    Display *display, XID window, uint32_t magic);
+
+struct drm_auth_x11_vtable {
+    X11OpenDisplayFunc          x11_open_display;
+    X11CloseDisplayFunc         x11_close_display;
+    VADRI2AuthenticateFunc      va_dri2_authenticate;
+};
+
+struct drm_auth_x11 {
+    void                       *handle; /* libva-x11.so.1 */
+    DRMAuthX11VTable            vtable;
+    Display                    *display;
+    Window                      window;
+};
+
+static bool
+get_symbol(void *handle, void *func_vptr, const char *name)
+{
+    VAGenericFunc func, *func_ptr = func_vptr;
+    const char *error;
+
+    dlerror();
+    func = (VAGenericFunc)dlsym(handle, name);
+    error = dlerror();
+
+    if (error) {
+        fprintf(stderr, "error: failed to resolve %s() function: %s\n",
+                name, error);
+        return false;
+    }
+
+    *func_ptr = func;
+    return true;
+}
+
+static bool
+drm_auth_x11_init(DRMAuthX11 *auth)
+{
+    struct drm_auth_x11_vtable *vtable;
+    char libva_x11_name[16];
+    int ret;
+
+    ret = snprintf(
+              libva_x11_name, sizeof(libva_x11_name),
+              "libva-x11.so.%d", LIBVA_MAJOR_VERSION
+          );
+    if (ret < 0 || ret >= sizeof(libva_x11_name))
+        return false;
+
+    auth->handle = dlopen(libva_x11_name, RTLD_LAZY | RTLD_GLOBAL);
+    if (!auth->handle) {
+        perror("open lib");
+        return false;
+    }
+
+    vtable = &auth->vtable;
+    if (!get_symbol(RTLD_DEFAULT, &vtable->x11_open_display, "XOpenDisplay"))
+        return false;
+    if (!get_symbol(RTLD_DEFAULT, &vtable->x11_close_display, "XCloseDisplay"))
+        return false;
+    if (!get_symbol(auth->handle, &vtable->va_dri2_authenticate,
+                    "VA_DRI2Authenticate"))
+        return false;
+
+    auth->display = vtable->x11_open_display(NULL);
+    if (!auth->display)
+        return false;
+
+    auth->window = DefaultRootWindow(auth->display);
+    return true;
+}
+
+static void
+drm_auth_x11_terminate(DRMAuthX11 *auth)
+{
+    if (!auth)
+        return;
+
+    if (auth->display) {
+        auth->vtable.x11_close_display(auth->display);
+        auth->display = NULL;
+        auth->window  = None;
+    }
+
+    if (auth->handle) {
+        dlclose(auth->handle);
+        auth->handle = NULL;
+    }
+}
+
+/* Try to authenticate the DRM connection with the supplied magic through X11 */
+bool
+va_drm_authenticate_x11(int fd, uint32_t magic)
+{
+    DRMAuthX11VTable * vtable;
+    DRMAuthX11 auth;
+    bool success = false;
+
+    memset(&auth, 0, sizeof(auth));
+    if (!drm_auth_x11_init(&auth))
+        goto end;
+    vtable = &auth.vtable;
+    success = vtable->va_dri2_authenticate(auth.display, auth.window, magic);
+
+end:
+    drm_auth_x11_terminate(&auth);
+    return success;
+}