Add Chromium-only Blender WebEngine parity work

blender-5.2.0/intern/wayland_dynload/intern/wayland_dynload_client.c

@@ -0,0 +1,89 @@
+/* SPDX-FileCopyrightText: 2022 Blender Authors
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup intern_wayland_dynload
+ *
+ * Wrapper functions for `<wayland-client.h>`.
+ */
+
+#include <stdlib.h> /* `atexit`. */
+#include <string.h>
+
+#include "wayland_dynload_API.h"
+#include "wayland_dynload_utils.h"
+
+#include "wayland_dynload_client.h" /* Own include. */
+
+/* Public handle. */
+struct WaylandDynload_Client wayland_dynload_client = {NULL};
+
+static DynamicLibrary lib = NULL;
+
+#define WAYLAND_DYNLOAD_IFACE(symbol) \
+  extern struct wl_interface symbol; \
+  struct wl_interface symbol;
+#include "wayland_dynload_client.h"
+#undef WAYLAND_DYNLOAD_IFACE
+
+bool wayland_dynload_client_init(const bool verbose)
+{
+  /* NOTE: returning false must call exit to prevent leaking `lib`
+   * once it has been opened. */
+
+  /* Library paths. */
+  const char *paths[] = {
+      "libwayland-client.so.0",
+      "libwayland-client.so",
+  };
+  const int paths_num = sizeof(paths) / sizeof(*paths);
+  int path_found;
+  if (!(lib = dynamic_library_open_array_with_error(paths, paths_num, verbose, &path_found))) {
+    return false;
+  }
+  if (atexit(wayland_dynload_client_exit)) {
+    wayland_dynload_client_exit();
+    return false;
+  }
+
+#define WAYLAND_DYNLOAD_IFACE(symbol) \
+  { \
+    const void *symbol_val; \
+    if (!(symbol_val = dynamic_library_find_with_error( \
+              lib, #symbol, paths[path_found], verbose))) { \
+      wayland_dynload_client_exit(); \
+      return false; \
+    } \
+    memcpy(&symbol, symbol_val, sizeof(symbol)); \
+  }
+#include "wayland_dynload_client.h"
+#undef WAYLAND_DYNLOAD_IFACE
+
+#define WAYLAND_DYNLOAD_FN(symbol) \
+  if (!(wayland_dynload_client.symbol = dynamic_library_find_with_error( \
+            lib, #symbol, paths[path_found], verbose))) \
+  { \
+    wayland_dynload_client_exit(); \
+    return false; \
+  }
+#include "wayland_dynload_client.h"
+#undef WAYLAND_DYNLOAD_FN
+
+  return true;
+}
+
+void wayland_dynload_client_exit(void)
+{
+  if (lib != NULL) {
+    dynamic_library_close(lib); /*  Ignore errors. */
+    lib = NULL;
+  }
+}
+
+/* Validate local signatures against the original header. */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wredundant-decls"
+#define WAYLAND_DYNLOAD_VALIDATE
+#include "wayland_dynload_client.h"
+#pragma GCC diagnostic pop

blender-5.2.0/intern/wayland_dynload/intern/wayland_dynload_cursor.c

@@ -0,0 +1,69 @@
+/* SPDX-FileCopyrightText: 2022 Blender Authors
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup intern_wayland_dynload
+ *
+ * Wrapper functions for `<wayland-cursor.h>`.
+ */
+
+#include <stdlib.h> /* `atexit`. */
+#include <string.h>
+
+#include "wayland_dynload_API.h"
+#include "wayland_dynload_utils.h"
+
+#include "wayland_dynload_cursor.h" /* Own include. */
+
+struct WaylandDynload_Cursor wayland_dynload_cursor = {NULL};
+
+static DynamicLibrary lib = NULL;
+
+bool wayland_dynload_cursor_init(const bool verbose)
+{
+  /* NOTE: returning false must call exit to prevent leaking `lib`
+   * once it has been opened. */
+
+  /* Library paths. */
+  const char *paths[] = {
+      "libwayland-cursor.so.0",
+      "libwayland-cursor.so",
+  };
+  const int paths_num = sizeof(paths) / sizeof(*paths);
+  int path_index;
+  if (!(lib = dynamic_library_open_array_with_error(paths, paths_num, verbose, &path_index))) {
+    return false;
+  }
+  if (atexit(wayland_dynload_cursor_exit)) {
+    wayland_dynload_cursor_exit();
+    return false;
+  }
+
+#define WAYLAND_DYNLOAD_FN(symbol) \
+  if (!(wayland_dynload_cursor.symbol = dynamic_library_find_with_error( \
+            lib, #symbol, paths[path_index], verbose))) \
+  { \
+    wayland_dynload_cursor_exit(); \
+    return false; \
+  }
+#include "wayland_dynload_cursor.h"
+#undef WAYLAND_DYNLOAD_FN
+
+  return true;
+}
+
+void wayland_dynload_cursor_exit(void)
+{
+  if (lib != NULL) {
+    dynamic_library_close(lib); /*  Ignore errors. */
+    lib = NULL;
+  }
+}
+
+/* Validate local signatures against the original header. */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wredundant-decls"
+#define WAYLAND_DYNLOAD_VALIDATE
+#include "wayland_dynload_cursor.h"
+#pragma GCC diagnostic pop

blender-5.2.0/intern/wayland_dynload/intern/wayland_dynload_egl.c

@@ -0,0 +1,69 @@
+/* SPDX-FileCopyrightText: 2022 Blender Authors
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup intern_wayland_dynload
+ *
+ * Wrapper functions for `<wayland-egl.h>`.
+ */
+
+#include <stdlib.h> /* `atexit`. */
+
+#include "wayland_dynload_API.h"
+#include "wayland_dynload_utils.h"
+
+#include "wayland_dynload_egl.h" /* Own include. */
+
+/* Public handle. */
+struct WaylandDynload_EGL wayland_dynload_egl = {NULL};
+
+static DynamicLibrary lib = NULL;
+
+bool wayland_dynload_egl_init(const bool verbose)
+{
+  /* NOTE: returning false must call exit to prevent leaking `lib`
+   * once it has been opened. */
+
+  /* Library paths. */
+  const char *paths[] = {
+      "libwayland-egl.so.1",
+      "libwayland-egl.so",
+  };
+  const int paths_num = sizeof(paths) / sizeof(*paths);
+  int path_found = 0;
+  if (!(lib = dynamic_library_open_array_with_error(paths, paths_num, verbose, &path_found))) {
+    return false;
+  }
+  if (atexit(wayland_dynload_egl_exit)) {
+    wayland_dynload_egl_exit();
+    return false;
+  }
+
+#define WAYLAND_DYNLOAD_FN(symbol) \
+  if (!(wayland_dynload_egl.symbol = dynamic_library_find_with_error( \
+            lib, #symbol, paths[path_found], verbose))) \
+  { \
+    wayland_dynload_egl_exit(); \
+    return false; \
+  }
+#include "wayland_dynload_egl.h"
+#undef WAYLAND_DYNLOAD_FN
+
+  return true;
+}
+
+void wayland_dynload_egl_exit(void)
+{
+  if (lib != NULL) {
+    dynamic_library_close(lib); /*  Ignore errors. */
+    lib = NULL;
+  }
+}
+
+/* Validate local signatures against the original header. */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wredundant-decls"
+#define WAYLAND_DYNLOAD_VALIDATE
+#include "wayland_dynload_egl.h"
+#pragma GCC diagnostic pop

blender-5.2.0/intern/wayland_dynload/intern/wayland_dynload_utils.c

@@ -0,0 +1,47 @@
+/* SPDX-FileCopyrightText: 2022 Blender Authors
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup intern_wayland_dynload
+ */
+
+#include <stdio.h>
+
+#include "wayland_dynload_utils.h"
+
+DynamicLibrary dynamic_library_open_array_with_error(const char **paths,
+                                                     const int paths_num,
+                                                     const bool verbose,
+                                                     int *r_path_index)
+{
+  DynamicLibrary lib = NULL;
+  for (int a = 0; a < paths_num; a++) {
+    lib = dynamic_library_open(paths[a]);
+    if (lib) {
+      *r_path_index = a;
+      break;
+    }
+  }
+  if (lib == NULL) {
+    /* Use the last path as it's likely to be least specific. */
+    if (verbose) {
+      fprintf(stderr, "Unable to find '%s'\n", paths[paths_num - 1]);
+    }
+  }
+  return lib;
+}
+
+void *dynamic_library_find_with_error(DynamicLibrary lib,
+                                      const char *symbol,
+                                      const char *path_lib,
+                                      const bool verbose)
+{
+  void *symbol_var = dynamic_library_find(lib, symbol);
+  if (symbol_var == NULL) {
+    if (verbose) {
+      fprintf(stderr, "Unable to find '%s' in '%s'.\n", symbol, path_lib);
+    }
+  }
+  return symbol_var;
+}

blender-5.2.0/intern/wayland_dynload/intern/wayland_dynload_utils.h

@@ -0,0 +1,32 @@
+/* SPDX-FileCopyrightText: 2022 Blender Authors
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup intern_wayland_dynload
+ *
+ * Utility defines.
+ */
+
+#pragma once
+
+#include <dlfcn.h> /* Dynamic loading. */
+#include <stdbool.h>
+
+typedef void *DynamicLibrary;
+
+#define dynamic_library_open(path) dlopen(path, RTLD_NOW)
+#define dynamic_library_close(lib) dlclose(lib)
+#define dynamic_library_find(lib, symbol) dlsym(lib, symbol)
+
+/** Loads a library from an array, printing an error when the symbol isn't found. */
+DynamicLibrary dynamic_library_open_array_with_error(const char **paths,
+                                                     int paths_num,
+                                                     bool verbose,
+                                                     int *r_path_index);
+
+/** Find a symbol, printing an error when the symbol isn't found. */
+void *dynamic_library_find_with_error(DynamicLibrary lib,
+                                      const char *symbol,
+                                      const char *path_lib,
+                                      bool verbose);