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/* 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
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