| 1 | /* $Id: DevVGA-SVGA3d-glLdr.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
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| 2 | /** @file
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| 3 | * DevVGA - VMWare SVGA device - 3D part, dynamic loading of GL function.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2018-2024 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * SPDX-License-Identifier: GPL-3.0-only
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| 26 | */
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| 27 |
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| 28 | #define VMSVGA3D_GL_DEFINE_PFN
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| 29 | #include "DevVGA-SVGA3d-glLdr.h"
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| 30 |
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| 31 | #include <VBox/vmm/pdmdev.h>
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| 32 | #include <VBox/err.h>
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| 33 | #include <iprt/assert.h>
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| 34 | #include <iprt/cdefs.h>
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| 35 | #include <iprt/ldr.h>
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| 36 | #include <iprt/log.h>
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| 37 |
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| 38 | #ifdef RT_OS_WINDOWS
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| 39 | # define OGLGETPROCADDRESS MyWinGetProcAddress
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| 40 | DECLINLINE(PFNRT) MyWinGetProcAddress(const char *pszSymbol)
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| 41 | {
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| 42 | int rc;
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| 43 |
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| 44 | static RTLDRMOD s_hOpenGL32 = NULL;
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| 45 | if (s_hOpenGL32 == NULL)
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| 46 | {
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| 47 | rc = RTLdrLoadSystem("opengl32", /* fNoUnload = */ true, &s_hOpenGL32);
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| 48 | if (RT_FAILURE(rc))
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| 49 | s_hOpenGL32 = NULL;
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| 50 | }
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| 51 |
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| 52 | typedef PROC (WINAPI *PFNWGLGETPROCADDRESS)(LPCSTR);
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| 53 | static PFNWGLGETPROCADDRESS s_wglGetProcAddress = NULL;
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| 54 | if (s_wglGetProcAddress == NULL)
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| 55 | {
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| 56 | if (s_hOpenGL32 != NULL)
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| 57 | {
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| 58 | rc = RTLdrGetSymbol(s_hOpenGL32, "wglGetProcAddress", (void **)&s_wglGetProcAddress);
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| 59 | if (RT_FAILURE(rc))
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| 60 | s_wglGetProcAddress = NULL;
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| 61 | }
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| 62 | }
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| 63 |
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| 64 | if (s_wglGetProcAddress)
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| 65 | {
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| 66 | /* Khronos: [on failure] "some implementations will return other values. 1, 2, and 3 are used, as well as -1". */
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| 67 | PFNRT p = (PFNRT)s_wglGetProcAddress(pszSymbol);
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| 68 | if (RT_VALID_PTR(p))
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| 69 | return p;
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| 70 |
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| 71 | /* Might be an exported symbol. */
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| 72 | rc = RTLdrGetSymbol(s_hOpenGL32, pszSymbol, (void **)&p);
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| 73 | if (RT_SUCCESS(rc))
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| 74 | return p;
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| 75 | }
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| 76 |
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| 77 | return 0;
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| 78 | }
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| 79 |
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| 80 | #elif defined(RT_OS_DARWIN)
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| 81 | # include <dlfcn.h>
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| 82 | # define OGLGETPROCADDRESS MyNSGLGetProcAddress
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| 83 | /** Resolves an OpenGL symbol. */
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| 84 | static void *MyNSGLGetProcAddress(const char *pszSymbol)
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| 85 | {
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| 86 | /* Another copy in shaderapi.c. */
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| 87 | static void *s_pvImage = NULL;
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| 88 | if (s_pvImage == NULL)
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| 89 | s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
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| 90 | return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
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| 91 | }
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| 92 |
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| 93 | #else
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| 94 | # define OGLGETPROCADDRESS MyGLXGetProcAddress
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| 95 | static PFNRT MyGLXGetProcAddress(const char *pszSymbol)
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| 96 | {
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| 97 | int rc;
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| 98 |
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| 99 | static RTLDRMOD s_hGL = NULL;
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| 100 | if (s_hGL == NULL)
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| 101 | {
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| 102 | static const char s_szLibGL[] = "libGL.so.1";
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| 103 | rc = RTLdrLoadEx(s_szLibGL, &s_hGL, RTLDRLOAD_FLAGS_GLOBAL | RTLDRLOAD_FLAGS_NO_UNLOAD, NULL);
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| 104 | if (RT_FAILURE(rc))
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| 105 | {
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| 106 | LogRel(("VMSVGA3d: failed to load %s: %Rrc\n", s_szLibGL, rc));
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| 107 | s_hGL = NULL;
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| 108 | return NULL;
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| 109 | }
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| 110 | }
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| 111 |
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| 112 | typedef PFNRT (* PFNGLXGETPROCADDRESS)(const GLubyte * procName);
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| 113 | static PFNGLXGETPROCADDRESS s_glXGetProcAddress = NULL;
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| 114 | if (s_glXGetProcAddress == NULL)
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| 115 | {
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| 116 | rc = RTLdrGetSymbol(s_hGL, "glXGetProcAddress", (void **)&s_glXGetProcAddress);
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| 117 | if (RT_FAILURE(rc))
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| 118 | {
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| 119 | LogRel(("VMSVGA3d: failed to get glXGetProcAddress: %Rrc\n", rc));
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| 120 | s_glXGetProcAddress = NULL;
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| 121 | return NULL;
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| 122 | }
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| 123 | }
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| 124 |
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| 125 | PFNRT p = s_glXGetProcAddress((const GLubyte *)pszSymbol);
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| 126 | if (RT_VALID_PTR(p))
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| 127 | return p;
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| 128 |
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| 129 | /* Might be an exported symbol. */
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| 130 | rc = RTLdrGetSymbol(s_hGL, pszSymbol, (void **)&p);
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| 131 | if (RT_SUCCESS(rc))
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| 132 | return p;
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| 133 |
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| 134 | return NULL;
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| 135 | }
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| 136 |
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| 137 | static PFNRT MyX11GetProcAddress(const char *pszSymbol)
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| 138 | {
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| 139 | int rc;
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| 140 |
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| 141 | static RTLDRMOD s_hX11 = NULL;
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| 142 | if (s_hX11 == NULL)
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| 143 | {
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| 144 | static const char s_szLibX11[] = "libX11.so.6";
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| 145 | rc = RTLdrLoadEx(s_szLibX11, &s_hX11, RTLDRLOAD_FLAGS_LOCAL | RTLDRLOAD_FLAGS_NO_UNLOAD, NULL);
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| 146 | if (RT_FAILURE(rc))
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| 147 | {
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| 148 | LogRel(("VMSVGA3d: failed to load %s: %Rrc\n", s_szLibX11, rc));
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| 149 | s_hX11 = NULL;
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| 150 | return NULL;
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| 151 | }
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| 152 | }
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| 153 |
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| 154 | PFNRT p = NULL;
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| 155 | rc = RTLdrGetSymbol(s_hX11, pszSymbol, (void **)&p);
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| 156 | if (RT_SUCCESS(rc))
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| 157 | return p;
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| 158 |
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| 159 | return NULL;
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| 160 | }
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| 161 |
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| 162 | #define X11GETPROC_(ProcName) do { \
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| 163 | *(PFNRT *)&pfn_##ProcName = pfnRet = MyX11GetProcAddress(#ProcName); \
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| 164 | if (pfnRet) { /* likely */ } \
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| 165 | else \
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| 166 | { \
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| 167 | AssertLogRelMsg(pfnRet, ("%s missing\n", #ProcName)); \
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| 168 | return PDMDevHlpVMSetError(pDevIns, VERR_VGA_GL_SYMBOL_NOT_FOUND, RT_SRC_POS, \
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| 169 | "Missing libX11 symbol '%s'\n", #ProcName); \
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| 170 | } \
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| 171 | } while(0)
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| 172 | #endif
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| 173 |
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| 174 | #define GLGETPROC_(ProcName, NameSuffix) do { \
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| 175 | *(PFNRT *)&pfn_##ProcName = pfnRet = OGLGETPROCADDRESS(#ProcName NameSuffix); \
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| 176 | if (pfnRet) { /* likely */ } \
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| 177 | else \
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| 178 | { \
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| 179 | AssertLogRelMsg(pfnRet, ("%s missing\n", #ProcName NameSuffix)); \
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| 180 | return PDMDevHlpVMSetError(pDevIns, VERR_VGA_GL_SYMBOL_NOT_FOUND, RT_SRC_POS, \
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| 181 | "Missing OpenGL symbol '%s'\n", #ProcName NameSuffix); \
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| 182 | } \
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| 183 | } while(0)
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| 184 |
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| 185 | int glLdrInit(PPDMDEVINS pDevIns)
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| 186 | {
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| 187 | /** @todo r=bird: Perhaps make this template include file driven? See
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| 188 | * include/VBox/dbus.h, include/VBox/dbus-calls.h and iprt/runtime-loader.h for
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| 189 | * instance. Regardless, it would be would be nice if we could move up the
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| 190 | * RTLdrLoadSystem/dlopen bits and have separate error reporting for those,
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| 191 | * making use of VERR_VGA_GL_LOAD_FAILURE. I can look into that, but
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| 192 | * probably only after the release is out... */
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| 193 |
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| 194 | #ifdef RT_OS_WINDOWS
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| 195 | pfn_wglCreateContext = 0;
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| 196 | pfn_wglDeleteContext = 0;
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| 197 | pfn_wglMakeCurrent = 0;
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| 198 | pfn_wglShareLists = 0;
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| 199 | #elif defined(RT_OS_LINUX)
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| 200 | pfn_XConfigureWindow = 0;
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| 201 | pfn_XCloseDisplay = 0;
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| 202 | pfn_XCreateColormap = 0;
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| 203 | pfn_XCreatePixmap = 0;
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| 204 | pfn_XCreateWindow = 0;
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| 205 | pfn_XDefaultRootWindow = 0;
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| 206 | pfn_XDestroyWindow = 0;
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| 207 | pfn_XFree = 0;
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| 208 | pfn_XFreePixmap = 0;
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| 209 | pfn_XInitThreads = 0;
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| 210 | pfn_XNextEvent = 0;
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| 211 | pfn_XOpenDisplay = 0;
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| 212 | pfn_XPending = 0;
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| 213 | pfn_XSetErrorHandler = 0;
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| 214 | pfn_XSync = 0;
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| 215 | pfn_XScreenNumberOfScreen = 0;
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| 216 | pfn_XMapWindow = 0;
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| 217 | pfn_XGetWindowAttributes = 0;
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| 218 | pfn_glXGetFBConfigAttrib = 0;
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| 219 | pfn_glXGetVisualFromFBConfig = 0;
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| 220 | pfn_glXQueryVersion = 0;
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| 221 | pfn_glXChooseFBConfig = 0;
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| 222 | pfn_glXChooseVisual = 0;
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| 223 | pfn_glXCreateContext = 0;
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| 224 | pfn_glXCreatePixmap = 0;
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| 225 | pfn_glXMakeCurrent = 0;
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| 226 | pfn_glXDestroyContext = 0;
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| 227 | pfn_glXDestroyPixmap = 0;
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| 228 | #endif
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| 229 | pfn_glAlphaFunc = 0;
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| 230 | pfn_glBegin = 0;
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| 231 | pfn_glBindTexture = 0;
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| 232 | pfn_glBlendColor = 0;
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| 233 | pfn_glBlendEquation = 0;
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| 234 | pfn_glBlendFunc = 0;
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| 235 | pfn_glClear = 0;
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| 236 | pfn_glClearColor = 0;
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| 237 | pfn_glClearDepth = 0;
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| 238 | pfn_glClearStencil = 0;
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| 239 | pfn_glClientActiveTexture = 0;
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| 240 | pfn_glClipPlane = 0;
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| 241 | pfn_glColorMask = 0;
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| 242 | pfn_glColorPointer = 0;
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| 243 | pfn_glCullFace = 0;
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| 244 | pfn_glDeleteTextures = 0;
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| 245 | pfn_glDepthFunc = 0;
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| 246 | pfn_glDepthMask = 0;
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| 247 | pfn_glDepthRange = 0;
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| 248 | pfn_glDisable = 0;
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| 249 | pfn_glDisableClientState = 0;
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| 250 | pfn_glDrawArrays = 0;
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| 251 | pfn_glDrawElements = 0;
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| 252 | pfn_glEnable = 0;
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| 253 | pfn_glEnableClientState = 0;
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| 254 | pfn_glEnd = 0;
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| 255 | pfn_glFinish = 0;
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| 256 | pfn_glFlush = 0;
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| 257 | pfn_glFogf = 0;
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| 258 | pfn_glFogfv = 0;
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| 259 | pfn_glFogi = 0;
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| 260 | pfn_glFrontFace = 0;
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| 261 | pfn_glGenTextures = 0;
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| 262 | pfn_glGetBooleanv = 0;
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| 263 | pfn_glGetError = 0;
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| 264 | pfn_glGetFloatv = 0;
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| 265 | pfn_glGetIntegerv = 0;
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| 266 | pfn_glGetString = 0;
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| 267 | pfn_glGetTexImage = 0;
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| 268 | pfn_glLightModelfv = 0;
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| 269 | pfn_glLightf = 0;
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| 270 | pfn_glLightfv = 0;
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| 271 | pfn_glLineWidth = 0;
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| 272 | pfn_glLoadIdentity = 0;
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| 273 | pfn_glLoadMatrixf = 0;
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| 274 | pfn_glMaterialfv = 0;
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| 275 | pfn_glMatrixMode = 0;
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| 276 | pfn_glMultMatrixf = 0;
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| 277 | pfn_glNormalPointer = 0;
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| 278 | pfn_glOrtho = 0;
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| 279 | pfn_glPixelStorei = 0;
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| 280 | pfn_glPointSize = 0;
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| 281 | pfn_glPolygonMode = 0;
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| 282 | pfn_glPolygonOffset = 0;
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| 283 | pfn_glPopAttrib = 0;
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| 284 | pfn_glPopMatrix = 0;
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| 285 | pfn_glPushAttrib = 0;
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| 286 | pfn_glPushMatrix = 0;
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| 287 | pfn_glScissor = 0;
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| 288 | pfn_glShadeModel = 0;
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| 289 | pfn_glStencilFunc = 0;
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| 290 | pfn_glStencilMask = 0;
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| 291 | pfn_glStencilOp = 0;
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| 292 | pfn_glTexCoord2f = 0;
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| 293 | pfn_glTexCoordPointer = 0;
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| 294 | pfn_glTexImage2D = 0;
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| 295 | pfn_glTexParameterf = 0;
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| 296 | pfn_glTexParameterfv = 0;
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| 297 | pfn_glTexParameteri = 0;
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| 298 | pfn_glTexSubImage2D = 0;
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| 299 | pfn_glVertex2i = 0;
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| 300 | pfn_glVertexPointer = 0;
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| 301 | pfn_glViewport = 0;
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| 302 |
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| 303 | PFNRT pfnRet;
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| 304 | #ifdef RT_OS_WINDOWS
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| 305 | GLGETPROC_(wglCreateContext, "");
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| 306 | GLGETPROC_(wglDeleteContext, "");
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| 307 | GLGETPROC_(wglMakeCurrent, "");
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| 308 | GLGETPROC_(wglShareLists, "");
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| 309 | #elif defined(RT_OS_LINUX)
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| 310 | X11GETPROC_(XConfigureWindow);
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| 311 | X11GETPROC_(XCloseDisplay);
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| 312 | X11GETPROC_(XCreateColormap);
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| 313 | X11GETPROC_(XCreatePixmap);
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| 314 | X11GETPROC_(XCreateWindow);
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| 315 | X11GETPROC_(XDefaultRootWindow);
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| 316 | X11GETPROC_(XDestroyWindow);
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| 317 | X11GETPROC_(XFree);
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| 318 | X11GETPROC_(XFreePixmap);
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| 319 | X11GETPROC_(XInitThreads);
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| 320 | X11GETPROC_(XNextEvent);
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| 321 | X11GETPROC_(XOpenDisplay);
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| 322 | X11GETPROC_(XPending);
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| 323 | X11GETPROC_(XSetErrorHandler);
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| 324 | X11GETPROC_(XSync);
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| 325 | X11GETPROC_(XScreenNumberOfScreen);
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| 326 | X11GETPROC_(XMapWindow);
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| 327 | X11GETPROC_(XGetWindowAttributes);
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| 328 | GLGETPROC_(glXGetFBConfigAttrib, "");
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| 329 | GLGETPROC_(glXGetVisualFromFBConfig, "");
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| 330 | GLGETPROC_(glXQueryVersion, "");
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| 331 | GLGETPROC_(glXChooseFBConfig, "");
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| 332 | GLGETPROC_(glXChooseVisual, "");
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| 333 | GLGETPROC_(glXCreateContext, "");
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| 334 | GLGETPROC_(glXCreatePixmap, "");
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| 335 | GLGETPROC_(glXMakeCurrent, "");
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| 336 | GLGETPROC_(glXDestroyContext, "");
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| 337 | GLGETPROC_(glXDestroyPixmap, "");
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| 338 | #endif
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| 339 | GLGETPROC_(glAlphaFunc, "");
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| 340 | GLGETPROC_(glBegin, "");
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| 341 | GLGETPROC_(glBindTexture, "");
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| 342 | GLGETPROC_(glBlendFunc, "");
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| 343 | GLGETPROC_(glClear, "");
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| 344 | GLGETPROC_(glClearColor, "");
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| 345 | GLGETPROC_(glClearDepth, "");
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| 346 | GLGETPROC_(glClearStencil, "");
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| 347 | GLGETPROC_(glClipPlane, "");
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| 348 | GLGETPROC_(glColorMask, "");
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| 349 | GLGETPROC_(glColorPointer, "");
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| 350 | GLGETPROC_(glCullFace, "");
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| 351 | GLGETPROC_(glDeleteTextures, "");
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| 352 | GLGETPROC_(glDepthFunc, "");
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| 353 | GLGETPROC_(glDepthMask, "");
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| 354 | GLGETPROC_(glDepthRange, "");
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| 355 | GLGETPROC_(glDisable, "");
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| 356 | GLGETPROC_(glDisableClientState, "");
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| 357 | GLGETPROC_(glDrawArrays, "");
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| 358 | GLGETPROC_(glDrawElements, "");
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| 359 | GLGETPROC_(glEnable, "");
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| 360 | GLGETPROC_(glEnableClientState, "");
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| 361 | GLGETPROC_(glEnd, "");
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| 362 | GLGETPROC_(glFinish, "");
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| 363 | GLGETPROC_(glFlush, "");
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| 364 | GLGETPROC_(glFogf, "");
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| 365 | GLGETPROC_(glFogfv, "");
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| 366 | GLGETPROC_(glFogi, "");
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| 367 | GLGETPROC_(glFrontFace, "");
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| 368 | GLGETPROC_(glGenTextures, "");
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| 369 | GLGETPROC_(glGetBooleanv, "");
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| 370 | GLGETPROC_(glGetError, "");
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| 371 | GLGETPROC_(glGetFloatv, "");
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| 372 | GLGETPROC_(glGetIntegerv, "");
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| 373 | GLGETPROC_(glGetString, "");
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| 374 | GLGETPROC_(glGetTexImage, "");
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| 375 | GLGETPROC_(glLightModelfv, "");
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| 376 | GLGETPROC_(glLightf, "");
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| 377 | GLGETPROC_(glLightfv, "");
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| 378 | GLGETPROC_(glLineWidth, "");
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| 379 | GLGETPROC_(glLoadIdentity, "");
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| 380 | GLGETPROC_(glLoadMatrixf, "");
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| 381 | GLGETPROC_(glMaterialfv, "");
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| 382 | GLGETPROC_(glMatrixMode, "");
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| 383 | GLGETPROC_(glMultMatrixf, "");
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| 384 | GLGETPROC_(glNormalPointer, "");
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| 385 | GLGETPROC_(glOrtho, "");
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| 386 | GLGETPROC_(glPixelStorei, "");
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| 387 | GLGETPROC_(glPointSize, "");
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| 388 | GLGETPROC_(glPolygonMode, "");
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| 389 | GLGETPROC_(glPolygonOffset, "");
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| 390 | GLGETPROC_(glPopAttrib, "");
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| 391 | GLGETPROC_(glPopMatrix, "");
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| 392 | GLGETPROC_(glPushAttrib, "");
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| 393 | GLGETPROC_(glPushMatrix, "");
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| 394 | GLGETPROC_(glScissor, "");
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| 395 | GLGETPROC_(glShadeModel, "");
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| 396 | GLGETPROC_(glStencilFunc, "");
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| 397 | GLGETPROC_(glStencilMask, "");
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| 398 | GLGETPROC_(glStencilOp, "");
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| 399 | GLGETPROC_(glTexCoord2f, "");
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| 400 | GLGETPROC_(glTexCoordPointer, "");
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| 401 | GLGETPROC_(glTexImage2D, "");
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| 402 | GLGETPROC_(glTexParameterf, "");
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| 403 | GLGETPROC_(glTexParameterfv, "");
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| 404 | GLGETPROC_(glTexParameteri, "");
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| 405 | GLGETPROC_(glTexSubImage2D, "");
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| 406 | GLGETPROC_(glVertex2i, "");
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| 407 | GLGETPROC_(glVertexPointer, "");
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| 408 | GLGETPROC_(glViewport, "");
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| 409 |
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| 410 | #ifdef RT_OS_LINUX
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| 411 | XInitThreads();
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|---|
| 412 | #endif
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| 413 | return VINF_SUCCESS;
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|---|
| 414 | }
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| 415 |
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| 416 | PFNRT glLdrGetProcAddress(const char *pszSymbol)
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|---|
| 417 | {
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|---|
| 418 | return OGLGETPROCADDRESS(pszSymbol);
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| 419 | }
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| 420 |
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| 421 | int glLdrGetExtFunctions(PPDMDEVINS pDevIns)
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|---|
| 422 | {
|
|---|
| 423 | PFNRT pfnRet;
|
|---|
| 424 | GLGETPROC_(glBlendColor, "");
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|---|
| 425 | GLGETPROC_(glBlendEquation, "");
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|---|
| 426 | GLGETPROC_(glClientActiveTexture, "");
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|---|
| 427 | return VINF_SUCCESS;
|
|---|
| 428 | }
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|---|
