1 /* 2 * Mesa 3-D graphics library 3 * Version: 7.1 4 * 5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included 15 * in all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23 */ 24 25 26 #ifndef _GLAPI_PRIV_H 27 #define _GLAPI_PRIV_H 28 29 #include <stdlib.h> 30 #include <string.h> 31 #include <stdio.h> 32 33 #ifdef HAVE_DIX_CONFIG_H 34 #include <dix-config.h> 35 #include "glapi/mesa.h" 36 #else /* HAVE_DIX_CONFIG_H */ 37 #define GL_GLEXT_PROTOTYPES 38 #include "GL/gl.h" 39 #include "GL/glext.h" 40 41 #ifndef GL_OES_fixed_point 42 typedef int GLfixed; 43 typedef int GLclampx; 44 #endif 45 46 #ifndef GL_OES_EGL_image 47 typedef void *GLeglImageOES; 48 #endif 49 50 #endif /* HAVE_DIX_CONFIG_H */ 51 52 #include "glapi/glapi.h" 53 54 55 /* getproc */ 56 57 extern void 58 _glapi_check_table_not_null(const struct _glapi_table *table); 59 60 61 extern void 62 _glapi_check_table(const struct _glapi_table *table); 63 64 65 /* entrypoint */ 66 67 extern void 68 init_glapi_relocs_once(void); 69 70 71 extern _glapi_proc 72 generate_entrypoint(unsigned int functionOffset); 73 74 75 extern void 76 fill_in_entrypoint_offset(_glapi_proc entrypoint, unsigned int offset); 77 78 79 extern _glapi_proc 80 get_entrypoint_address(unsigned int functionOffset); 81 82 83 /** 84 * Size (in bytes) of dispatch function (entrypoint). 85 */ 86 #if defined(USE_X86_ASM) 87 # if defined(GLX_USE_TLS) 88 # define DISPATCH_FUNCTION_SIZE 16 89 # elif defined(THREADS) 90 # define DISPATCH_FUNCTION_SIZE 32 91 # else 92 # define DISPATCH_FUNCTION_SIZE 16 93 # endif 94 #endif 95 96 #if defined(USE_X64_64_ASM) 97 # if defined(GLX_USE_TLS) 98 # define DISPATCH_FUNCTION_SIZE 16 99 # endif 100 #endif 101 102 103 /** 104 * Number of extension functions which we can dynamically add at runtime. 105 * 106 * Number of extension functions is also subject to the size of backing exec 107 * mem we allocate. For the common case of dispatch stubs with size 16 bytes, 108 * the two limits will be hit simultaneously. For larger dispatch function 109 * sizes, MAX_EXTENSION_FUNCS is effectively reduced. 110 */ 111 #define MAX_EXTENSION_FUNCS 256 112 113 114 #endif 115