1 /**************************************************************************
3 * Copyright 2008 VMware, Inc.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
30 #define WGL_WGLEXT_PROTOTYPES
33 #include <GL/wglext.h>
35 #include "glapi/glapi.h"
36 #include "stw_device.h"
38 #include "stw_nopfuncs.h"
40 #include "util/u_debug.h"
42 struct stw_extension_entry
48 #define STW_EXTENSION_ENTRY(P) { #P, (PROC) P }
50 static const struct stw_extension_entry stw_extension_entries
[] = {
52 /* WGL_ARB_extensions_string */
53 STW_EXTENSION_ENTRY( wglGetExtensionsStringARB
),
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
),
62 /* WGL_ARB_pixel_format */
63 STW_EXTENSION_ENTRY( wglChoosePixelFormatARB
),
64 STW_EXTENSION_ENTRY( wglGetPixelFormatAttribfvARB
),
65 STW_EXTENSION_ENTRY( wglGetPixelFormatAttribivARB
),
67 /* WGL_EXT_extensions_string */
68 STW_EXTENSION_ENTRY( wglGetExtensionsStringEXT
),
70 /* WGL_EXT_swap_control */
71 STW_EXTENSION_ENTRY( wglGetSwapIntervalEXT
),
72 STW_EXTENSION_ENTRY( wglSwapIntervalEXT
),
74 /* WGL_ARB_create_context */
75 STW_EXTENSION_ENTRY( wglCreateContextAttribsARB
),
77 /* WGL_ARB_render_texture */
78 STW_EXTENSION_ENTRY( wglBindTexImageARB
),
79 STW_EXTENSION_ENTRY( wglReleaseTexImageARB
),
80 STW_EXTENSION_ENTRY( wglSetPbufferAttribARB
),
82 /* WGL_ARB_make_current_read */
83 STW_EXTENSION_ENTRY( wglMakeContextCurrentARB
),
84 STW_EXTENSION_ENTRY( wglGetCurrentReadDCARB
),
92 const struct stw_extension_entry
*entry
;
98 if (lpszProc
[0] == 'w' && lpszProc
[1] == 'g' && lpszProc
[2] == 'l')
99 for (entry
= stw_extension_entries
; entry
->name
; entry
++)
100 if (strcmp( lpszProc
, entry
->name
) == 0)
103 if (lpszProc
[0] == 'g' && lpszProc
[1] == 'l') {
104 p
= (PROC
) _glapi_get_proc_address(lpszProc
);
109 /* If we get here, we'd normally just return NULL, but since some apps
110 * (like Viewperf12) crash when they try to use the null pointer, try
111 * returning a pointer to a no-op function instead.
113 p
= stw_get_nop_function(lpszProc
);
115 debug_printf("wglGetProcAddress(\"%s\") returning no-op function\n",
120 debug_printf("wglGetProcAddress(\"%s\") returning NULL\n", lpszProc
);