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 #include <GL/mesa_glinterop.h>
35
36 #include "glapi/glapi.h"
37 #include "stw_device.h"
38 #include "stw_gdishim.h"
39 #include "gldrv.h"
40 #include "stw_nopfuncs.h"
41
42 #include "util/u_debug.h"
43
44 struct stw_extension_entry
45 {
46 const char *name;
47 PROC proc;
48 };
49
50 #define STW_EXTENSION_ENTRY(P) { #P, (PROC) P }
51
52 static const struct stw_extension_entry stw_extension_entries[] = {
53
54 /* WGL_ARB_extensions_string */
55 STW_EXTENSION_ENTRY( wglGetExtensionsStringARB ),
56
57 /* WGL_ARB_pbuffer */
58 STW_EXTENSION_ENTRY( wglCreatePbufferARB ),
59 STW_EXTENSION_ENTRY( wglGetPbufferDCARB ),
60 STW_EXTENSION_ENTRY( wglReleasePbufferDCARB ),
61 STW_EXTENSION_ENTRY( wglDestroyPbufferARB ),
62 STW_EXTENSION_ENTRY( wglQueryPbufferARB ),
63
64 /* WGL_ARB_pixel_format */
65 STW_EXTENSION_ENTRY( wglChoosePixelFormatARB ),
66 STW_EXTENSION_ENTRY( wglGetPixelFormatAttribfvARB ),
67 STW_EXTENSION_ENTRY( wglGetPixelFormatAttribivARB ),
68
69 /* WGL_EXT_extensions_string */
70 STW_EXTENSION_ENTRY( wglGetExtensionsStringEXT ),
71
72 /* WGL_EXT_swap_control */
73 STW_EXTENSION_ENTRY( wglGetSwapIntervalEXT ),
74 STW_EXTENSION_ENTRY( wglSwapIntervalEXT ),
75
76 /* WGL_ARB_create_context */
77 STW_EXTENSION_ENTRY( wglCreateContextAttribsARB ),
78
79 /* WGL_ARB_render_texture */
80 STW_EXTENSION_ENTRY( wglBindTexImageARB ),
81 STW_EXTENSION_ENTRY( wglReleaseTexImageARB ),
82 STW_EXTENSION_ENTRY( wglSetPbufferAttribARB ),
83
84 /* WGL_ARB_make_current_read */
85 STW_EXTENSION_ENTRY( wglMakeContextCurrentARB ),
86 STW_EXTENSION_ENTRY( wglGetCurrentReadDCARB ),
87
88 /* Unnamed */
89 STW_EXTENSION_ENTRY( wglMesaGLInteropQueryDeviceInfo ),
90 STW_EXTENSION_ENTRY( wglMesaGLInteropExportObject ),
91 STW_EXTENSION_ENTRY( wglMesaGLInteropFlushObjects ),
92 { NULL, NULL }
93 };
94
95 PROC APIENTRY
DrvGetProcAddress(LPCSTR lpszProc)96 DrvGetProcAddress(
97 LPCSTR lpszProc )
98 {
99 const struct stw_extension_entry *entry;
100 PROC p;
101
102 if (!stw_dev)
103 return NULL;
104
105 if (lpszProc[0] == 'w' && lpszProc[1] == 'g' && lpszProc[2] == 'l')
106 for (entry = stw_extension_entries; entry->name; entry++)
107 if (strcmp( lpszProc, entry->name ) == 0)
108 return entry->proc;
109
110 if (lpszProc[0] == 'g' && lpszProc[1] == 'l') {
111 p = (PROC) _glapi_get_proc_address(lpszProc);
112 if (p)
113 return p;
114 }
115
116 /* If we get here, we'd normally just return NULL, but since some apps
117 * (like Viewperf12) crash when they try to use the null pointer, try
118 * returning a pointer to a no-op function instead.
119 */
120 p = stw_get_nop_function(lpszProc);
121 if (p) {
122 debug_printf("wglGetProcAddress(\"%s\") returning no-op function\n",
123 lpszProc);
124 return p;
125 }
126
127 debug_printf("wglGetProcAddress(\"%s\") returning NULL\n", lpszProc);
128 return NULL;
129 }
130