150 lines
4.9 KiB
Mathematica
150 lines
4.9 KiB
Mathematica
//========================================================================
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// GLFW - An OpenGL library
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// Platform: Cocoa/NSOpenGL
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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) 2009-2010 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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#include "internal.h"
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#include <pthread.h>
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//========================================================================
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// The per-thread current context/window pointer
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//========================================================================
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static pthread_key_t _glfwCurrentTLS;
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//////////////////////////////////////////////////////////////////////////
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////// GLFW platform API //////
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//////////////////////////////////////////////////////////////////////////
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//========================================================================
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// Initialize OpenGL support
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//========================================================================
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int _glfwInitOpenGL(void)
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{
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if (pthread_key_create(&_glfwCurrentTLS, NULL) != 0)
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{
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_glfwSetError(GLFW_PLATFORM_ERROR,
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"Cocoa/NSGL: Failed to create context TLS");
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return GL_FALSE;
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}
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return GL_TRUE;
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}
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//========================================================================
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// Terminate OpenGL support
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//========================================================================
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void _glfwTerminateOpenGL(void)
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{
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pthread_key_delete(_glfwCurrentTLS);
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}
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//========================================================================
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// Make the OpenGL context associated with the specified window current
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//========================================================================
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void _glfwPlatformMakeContextCurrent(_GLFWwindow* window)
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{
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if (window)
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[window->NSGL.context makeCurrentContext];
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else
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[NSOpenGLContext clearCurrentContext];
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pthread_setspecific(_glfwCurrentTLS, window);
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}
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//========================================================================
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// Return the window object whose context is current
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//========================================================================
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_GLFWwindow* _glfwPlatformGetCurrentContext(void)
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{
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return (_GLFWwindow*) pthread_getspecific(_glfwCurrentTLS);
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}
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//========================================================================
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// Swap buffers
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//========================================================================
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void _glfwPlatformSwapBuffers(_GLFWwindow* window)
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{
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// ARP appears to be unnecessary, but this is future-proof
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[window->NSGL.context flushBuffer];
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}
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//========================================================================
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// Set double buffering swap interval
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//========================================================================
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void _glfwPlatformSwapInterval(int interval)
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{
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_GLFWwindow* window = _glfwPlatformGetCurrentContext();
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GLint sync = interval;
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[window->NSGL.context setValues:&sync forParameter:NSOpenGLCPSwapInterval];
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}
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//========================================================================
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// Check if an OpenGL extension is available at runtime
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//========================================================================
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int _glfwPlatformExtensionSupported(const char* extension)
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{
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// There are no NSGL extensions
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return GL_FALSE;
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}
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//========================================================================
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// Get the function pointer to an OpenGL function
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//========================================================================
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GLFWglproc _glfwPlatformGetProcAddress(const char* procname)
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{
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CFStringRef symbolName = CFStringCreateWithCString(kCFAllocatorDefault,
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procname,
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kCFStringEncodingASCII);
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GLFWglproc symbol = CFBundleGetFunctionPointerForName(_glfwLibrary.NSGL.framework,
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symbolName);
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CFRelease(symbolName);
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return symbol;
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}
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