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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /gfx/gl/GLLibraryLoader.cpp
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/gl/GLLibraryLoader.cpp')
-rw-r--r--gfx/gl/GLLibraryLoader.cpp74
1 files changed, 74 insertions, 0 deletions
diff --git a/gfx/gl/GLLibraryLoader.cpp b/gfx/gl/GLLibraryLoader.cpp
new file mode 100644
index 0000000000..e73f312d29
--- /dev/null
+++ b/gfx/gl/GLLibraryLoader.cpp
@@ -0,0 +1,74 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "GLLibraryLoader.h"
+
+#include <regex>
+
+#include "mozilla/gfx/Logging.h"
+#include "nsDebug.h"
+
+#ifdef WIN32
+# include <windows.h>
+#endif
+
+namespace mozilla {
+namespace gl {
+
+void ClearSymbols(const SymLoadStruct* const firstStruct) {
+ for (auto itr = firstStruct; itr->symPointer; ++itr) {
+ *itr->symPointer = nullptr;
+ }
+}
+
+bool SymbolLoader::LoadSymbols(const SymLoadStruct* const firstStruct,
+ const bool warnOnFailures) const {
+ bool ok = true;
+
+ for (auto itr = firstStruct; itr->symPointer; ++itr) {
+ *itr->symPointer = nullptr;
+
+ for (const auto& s : itr->symNames) {
+ if (!s) break;
+
+ const auto p = GetProcAddress(s);
+ if (p) {
+ *itr->symPointer = p;
+ break;
+ }
+ }
+
+ if (!*itr->symPointer) {
+ if (warnOnFailures) {
+ printf_stderr("Can't find symbol '%s'.\n", itr->symNames[0]);
+ }
+ ok = false;
+ }
+ }
+
+ return ok;
+}
+
+// -
+
+PRFuncPtr SymbolLoader::GetProcAddress(const char* const name) const {
+#ifdef DEBUG
+ static const std::regex kRESymbol("[a-z].*");
+ if (!std::regex_match(name, kRESymbol)) {
+ gfxCriticalError() << "Bad symbol name : " << name;
+ }
+#endif
+
+ PRFuncPtr ret = nullptr;
+ if (!ret && mLib) {
+ ret = PR_FindFunctionSymbol(mLib, name);
+ }
+ if (!ret && mPfn) {
+ ret = mPfn(name);
+ }
+ return ret;
+}
+
+} // namespace gl
+} // namespace mozilla