1 /************************************************************************** 2 * 3 * Copyright 2008 VMware, Inc. 4 * 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 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 #include <windows.h> 29 30 #define WGL_WGLEXT_PROTOTYPES 31 32 #include <GL/gl.h> 33 #include <GL/wglext.h> 34 35 #include "glapi/glapi.h" 36 #include "stw_device.h" 37 #include "stw_icd.h" 38 #include "stw_nopfuncs.h" 39 40 #include "util/u_debug.h" 41 42 struct stw_extension_entry 43 { 44 const char *name; 45 PROC proc; 46 }; 47 48 #define STW_EXTENSION_ENTRY(P) { #P, (PROC) P } 49 50 static const struct stw_extension_entry stw_extension_entries[] = { 51 52 /* WGL_ARB_extensions_string */ 53 STW_EXTENSION_ENTRY( wglGetExtensionsStringARB ), 54 55 /* WGL_ARB_pbuffer */ 56 STW_EXTENSION_ENTRY( wglCreatePbufferARB ), 57 STW_EXTENSION_ENTRY( wglGetPbufferDCARB ), 58 STW_EXTENSION_ENTRY( wglReleasePbufferDCARB ), 59 STW_EXTENSION_ENTRY( wglDestroyPbufferARB ), 60 STW_EXTENSION_ENTRY( wglQueryPbufferARB ), 61 62 /* WGL_ARB_pixel_format */ 63 STW_EXTENSION_ENTRY( wglChoosePixelFormatARB ), 64 STW_EXTENSION_ENTRY( wglGetPixelFormatAttribfvARB ), 65 STW_EXTENSION_ENTRY( wglGetPixelFormatAttribivARB ), 66 67 /* WGL_EXT_extensions_string */ 68 STW_EXTENSION_ENTRY( wglGetExtensionsStringEXT ), 69 70 /* WGL_EXT_swap_interval */ 71 STW_EXTENSION_ENTRY( wglGetSwapIntervalEXT ), 72 STW_EXTENSION_ENTRY( wglSwapIntervalEXT ), 73 74 /* WGL_ARB_create_context */ 75 STW_EXTENSION_ENTRY( wglCreateContextAttribsARB ), 76 77 /* WGL_ARB_render_texture */ 78 STW_EXTENSION_ENTRY( wglBindTexImageARB ), 79 STW_EXTENSION_ENTRY( wglReleaseTexImageARB ), 80 STW_EXTENSION_ENTRY( wglSetPbufferAttribARB ), 81 82 { NULL, NULL } 83 }; 84 85 PROC APIENTRY 86 DrvGetProcAddress( 87 LPCSTR lpszProc ) 88 { 89 const struct stw_extension_entry *entry; 90 PROC p; 91 92 if (!stw_dev) 93 return NULL; 94 95 if (lpszProc[0] == 'w' && lpszProc[1] == 'g' && lpszProc[2] == 'l') 96 for (entry = stw_extension_entries; entry->name; entry++) 97 if (strcmp( lpszProc, entry->name ) == 0) 98 return entry->proc; 99 100 if (lpszProc[0] == 'g' && lpszProc[1] == 'l') { 101 p = (PROC) _glapi_get_proc_address(lpszProc); 102 if (p) 103 return p; 104 } 105 106 /* If we get here, we'd normally just return NULL, but since some apps 107 * (like Viewperf12) crash when they try to use the null pointer, try 108 * returning a pointer to a no-op function instead. 109 */ 110 p = stw_get_nop_function(lpszProc); 111 if (p) { 112 debug_printf("wglGetProcAddress(\"%s\") returning no-op function\n", 113 lpszProc); 114 return p; 115 } 116 117 debug_printf("wglGetProcAddress(\"%s\") returning NULL\n", lpszProc); 118 return NULL; 119 } 120