1/* 2 * Mesa 3-D graphics library 3 * 4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included 14 * in all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 */ 24 25 26#ifndef _GLAPI_PRIV_H 27#define _GLAPI_PRIV_H 28 29 30#define GL_GLEXT_PROTOTYPES 31#include "GL/gl.h" 32#include "GL/glext.h" 33 34typedef int GLclampx; 35 36#include "glapi/glapi.h" 37 38 39#ifdef __cplusplus 40extern "C" { 41#endif 42 43/* entrypoint */ 44 45extern void 46init_glapi_relocs_once(void); 47 48 49extern _glapi_proc 50generate_entrypoint(unsigned int functionOffset); 51 52 53extern void 54fill_in_entrypoint_offset(_glapi_proc entrypoint, unsigned int offset); 55 56 57extern _glapi_proc 58get_entrypoint_address(unsigned int functionOffset); 59 60 61/** 62 * Size (in bytes) of dispatch function (entrypoint). 63 */ 64#if defined(USE_X86_ASM) 65#define DISPATCH_FUNCTION_SIZE 16 66#endif 67 68#if defined(USE_X64_64_ASM) 69#define DISPATCH_FUNCTION_SIZE 16 70#endif 71 72 73/** 74 * Number of extension functions which we can dynamically add at runtime. 75 * 76 * Number of extension functions is also subject to the size of backing exec 77 * mem we allocate. For the common case of dispatch stubs with size 16 bytes, 78 * the two limits will be hit simultaneously. For larger dispatch function 79 * sizes, MAX_EXTENSION_FUNCS is effectively reduced. 80 */ 81#define MAX_EXTENSION_FUNCS 256 82 83 84#ifdef __cplusplus 85} 86#endif 87 88#endif 89