зеркало из https://github.com/mozilla/gecko-dev.git
66 строки
1.7 KiB
C++
66 строки
1.7 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GLLIBRARYLOADER_H_
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#define GLLIBRARYLOADER_H_
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#include <stdio.h>
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#include "GLDefs.h"
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#include "nscore.h"
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#include "prlink.h"
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namespace mozilla {
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namespace gl {
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class GLLibraryLoader
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{
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public:
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bool OpenLibrary(const char* library);
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typedef PRFuncPtr (GLAPIENTRY * PlatformLookupFunction) (const char*);
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enum {
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MAX_SYMBOL_NAMES = 6,
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MAX_SYMBOL_LENGTH = 128
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};
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typedef struct {
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PRFuncPtr* symPointer;
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const char* symNames[MAX_SYMBOL_NAMES];
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} SymLoadStruct;
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bool LoadSymbols(const SymLoadStruct* firstStruct,
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bool tryplatform = false,
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const char* prefix = nullptr,
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bool warnOnFailure = true);
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PRFuncPtr LookupSymbol(const char* symname);
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/*
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* Static version of the functions in this class
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*/
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static PRFuncPtr LookupSymbol(PRLibrary* lib,
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const char* symname,
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PlatformLookupFunction lookupFunction = nullptr);
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static bool LoadSymbols(PRLibrary* lib,
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const SymLoadStruct* firstStruct,
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PlatformLookupFunction lookupFunction = nullptr,
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const char* prefix = nullptr,
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bool warnOnFailure = true);
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protected:
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GLLibraryLoader() {
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mLibrary = nullptr;
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mLookupFunc = nullptr;
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}
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PRLibrary* mLibrary;
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PlatformLookupFunction mLookupFunc;
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};
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} /* namespace gl */
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} /* namespace mozilla */
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#endif /* GLLIBRARYLOADER_H_ */
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