/* * GLX implementation that uses Apple's OpenGL.framework * * Copyright (c) 2007-2011 Apple Inc. * Copyright (c) 2004 Torrey T. Lyons. All Rights Reserved. * Copyright (c) 2002 Greg Parker. All Rights Reserved. * * Portions of this file are copied from Mesa's xf86glx.c, * which contains the following copyright: * * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #include <assert.h> #include <dlfcn.h> #include <stdlib.h> #include <string.h> #include <stdio.h> #include <GL/gl.h> #include "main/glheader.h" #include "glapi.h" #include "glapitable.h" #include "apple_glx.h" #include "apple_xgl_api.h" #include "apple_cgl.h" struct _glapi_table * __ogl_framework_api = NULL; struct _glapi_table * __applegl_api = NULL; static void _apple_glapi_create_table(void) { if (__applegl_api) return; __ogl_framework_api = _glapi_create_table_from_handle(apple_cgl_get_dl_handle(), "gl"); assert(__ogl_framework_api); __applegl_api = malloc(sizeof(struct _glapi_table)); assert(__applegl_api); memcpy(__applegl_api, __ogl_framework_api, sizeof(struct _glapi_table)); _glapi_table_patch(__applegl_api, "ReadPixels", __applegl_glReadPixels); _glapi_table_patch(__applegl_api, "CopyPixels", __applegl_glCopyPixels); _glapi_table_patch(__applegl_api, "CopyColorTable", __applegl_glCopyColorTable); _glapi_table_patch(__applegl_api, "DrawBuffers", __applegl_glDrawBuffer); _glapi_table_patch(__applegl_api, "Viewport", __applegl_glViewport); } void apple_glapi_set_dispatch(void) { _apple_glapi_create_table(); _glapi_set_dispatch(__applegl_api); } void apple_glapi_oglfw_viewport_scissor(GLint x, GLint y, GLsizei width, GLsizei height) { _apple_glapi_create_table(); __ogl_framework_api->Viewport(x, y, width, height); __ogl_framework_api->Scissor(x, y, width, height); }