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-rw-r--r--gfx/gl/GLLibraryLoader.h63
1 files changed, 63 insertions, 0 deletions
diff --git a/gfx/gl/GLLibraryLoader.h b/gfx/gl/GLLibraryLoader.h
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+++ b/gfx/gl/GLLibraryLoader.h
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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/. */
+
+#ifndef GLLIBRARYLOADER_H_
+#define GLLIBRARYLOADER_H_
+
+#include <stdio.h>
+
+#include "GLDefs.h"
+#include "nscore.h"
+#include "prlink.h"
+
+namespace mozilla {
+namespace gl {
+
+class GLLibraryLoader
+{
+public:
+ bool OpenLibrary(const char* library);
+
+ typedef PRFuncPtr (GLAPIENTRY * PlatformLookupFunction) (const char*);
+
+ enum {
+ MAX_SYMBOL_NAMES = 6,
+ MAX_SYMBOL_LENGTH = 128
+ };
+
+ typedef struct {
+ PRFuncPtr* symPointer;
+ const char* symNames[MAX_SYMBOL_NAMES];
+ } SymLoadStruct;
+
+ bool LoadSymbols(const SymLoadStruct* firstStruct,
+ bool tryplatform = false,
+ const char* prefix = nullptr,
+ bool warnOnFailure = true);
+
+ /*
+ * Static version of the functions in this class
+ */
+ static PRFuncPtr LookupSymbol(PRLibrary* lib,
+ const char* symname,
+ PlatformLookupFunction lookupFunction = nullptr);
+ static bool LoadSymbols(PRLibrary* lib,
+ const SymLoadStruct* firstStruct,
+ PlatformLookupFunction lookupFunction = nullptr,
+ const char* prefix = nullptr,
+ bool warnOnFailure = true);
+protected:
+ GLLibraryLoader() {
+ mLibrary = nullptr;
+ mLookupFunc = nullptr;
+ }
+
+ PRLibrary* mLibrary;
+ PlatformLookupFunction mLookupFunc;
+};
+
+} /* namespace gl */
+} /* namespace mozilla */
+
+#endif /* GLLIBRARYLOADER_H_ */