mirror of
https://github.com/glfw/glfw.git
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117 lines
3.4 KiB
C
117 lines
3.4 KiB
C
//========================================================================
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// GLFW - An OpenGL library
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// Platform: Any
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// API version: 3.0
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// WWW: http://www.glfw.org/
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//------------------------------------------------------------------------
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// Copyright (c) 2002-2006 Marcus Geelnard
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// Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org>
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would
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// be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such, and must not
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// be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source
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// distribution.
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//
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//========================================================================
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#define _init_c_
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#include "internal.h"
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#include <string.h>
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#include <stdlib.h>
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//////////////////////////////////////////////////////////////////////////
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////// GLFW public API //////
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//////////////////////////////////////////////////////////////////////////
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//========================================================================
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// Initialize various GLFW state
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//========================================================================
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GLFWAPI int glfwInit(void)
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{
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if (_glfwInitialized)
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return GL_TRUE;
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memset(&_glfwLibrary, 0, sizeof(_glfwLibrary));
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// Not all window hints have zero as their default value, so this
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// needs to be here despite the memset above
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_glfwSetDefaultWindowHints();
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if (!_glfwPlatformInit())
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{
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_glfwPlatformTerminate();
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return GL_FALSE;
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}
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atexit(glfwTerminate);
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_glfwInitialized = GL_TRUE;
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return GL_TRUE;
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}
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//========================================================================
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// Close window and shut down library
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//========================================================================
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GLFWAPI void glfwTerminate(void)
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{
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if (!_glfwInitialized)
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return;
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// Close all remaining windows
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while (_glfwLibrary.windowListHead)
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glfwCloseWindow(_glfwLibrary.windowListHead);
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if (!_glfwPlatformTerminate())
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return;
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_glfwInitialized = GL_FALSE;
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}
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//========================================================================
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// Get GLFW version
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//========================================================================
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GLFWAPI void glfwGetVersion(int* major, int* minor, int* rev)
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{
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if (major != NULL)
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*major = GLFW_VERSION_MAJOR;
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if (minor != NULL)
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*minor = GLFW_VERSION_MINOR;
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if (rev != NULL)
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*rev = GLFW_VERSION_REVISION;
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}
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//========================================================================
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// Get the GLFW version string
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//========================================================================
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GLFWAPI const char* glfwGetVersionString(void)
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{
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return _glfwPlatformGetVersionString();
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}
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