зеркало из https://github.com/mozilla/gecko-dev.git
67 строки
1.7 KiB
C
67 строки
1.7 KiB
C
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/* 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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#ifdef WIN32
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#include <windows.h>
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#endif
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#include "GLDefs.h"
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#include "mozilla/Util.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 = 5,
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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(SymLoadStruct *firstStruct,
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bool tryplatform = false,
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const char *prefix = nsnull);
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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 = nsnull);
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static bool LoadSymbols(PRLibrary *lib,
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SymLoadStruct *firstStruct,
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PlatformLookupFunction lookupFunction = nsnull,
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const char *prefix = nsnull);
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protected:
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GLLibraryLoader() {
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mLibrary = nsnull;
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mLookupFunc = nsnull;
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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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