stw_ext_context.c revision 0c6a2c78fdd8b4ae620a9f449cab65c4be21a9a1 
1/*
2 * Mesa 3-D graphics library
3 * Version:  7.11
4 *
5 * Copyright (C) 2011 Morgan Armand <morgan.devel@gmail.com>
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#include <windows.h>
26
27#define WGL_WGLEXT_PROTOTYPES
28
29#include <GL/gl.h>
30#include <GL/wglext.h>
31
32#include "stw_icd.h"
33#include "stw_context.h"
34
35HGLRC WINAPI
36wglCreateContextAttribsARB(HDC hDC, HGLRC hShareContext, const int *attribList)
37{
38   int majorVersion = 1, minorVersion = 0, layerPlane = 0;
39   int contextFlags = 0x0;
40   int profileMask = WGL_CONTEXT_CORE_PROFILE_BIT_ARB;
41   int i;
42   BOOL done = FALSE;
43
44   /* parse attrib_list */
45   if (attribList) {
46      for (i = 0; !done && attribList[i]; i++) {
47         switch (attribList[i]) {
48         case WGL_CONTEXT_MAJOR_VERSION_ARB:
49            majorVersion = attribList[++i];
50            break;
51         case WGL_CONTEXT_MINOR_VERSION_ARB:
52            minorVersion = attribList[++i];
53            break;
54         case WGL_CONTEXT_LAYER_PLANE_ARB:
55            layerPlane = attribList[++i];
56            break;
57         case WGL_CONTEXT_FLAGS_ARB:
58            contextFlags = attribList[++i];
59            break;
60         case WGL_CONTEXT_PROFILE_MASK_ARB:
61            profileMask = attribList[++i];
62            break;
63         case 0:
64            /* end of list */
65            done = TRUE;
66            break;
67         default:
68            /* bad attribute */
69            SetLastError(ERROR_INVALID_PARAMETER);
70            return NULL;
71         }
72      }
73   }
74
75   /* check version (generate ERROR_INVALID_VERSION_ARB if bad) */
76   switch (majorVersion) {
77   case 1:
78      if (minorVersion < 0 || minorVersion > 5) {
79         SetLastError(ERROR_INVALID_VERSION_ARB);
80         return NULL;
81      }
82      break;
83   case 2:
84      if (minorVersion < 0 || minorVersion > 1) {
85         SetLastError(ERROR_INVALID_VERSION_ARB);
86         return NULL;
87      }
88      break;
89   case 3:
90      if (minorVersion < 0 || minorVersion > 3) {
91         SetLastError(ERROR_INVALID_VERSION_ARB);
92         return NULL;
93      }
94      break;
95   case 4:
96      if (minorVersion < 0 || minorVersion > 2) {
97         SetLastError(ERROR_INVALID_VERSION_ARB);
98         return NULL;
99      }
100      break;
101   default:
102      return NULL;
103   }
104
105   if ((contextFlags & WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB) && majorVersion < 3) {
106      SetLastError(ERROR_INVALID_VERSION_ARB);
107      return NULL;
108   }
109
110   /* check profileMask */
111   if (profileMask != WGL_CONTEXT_CORE_PROFILE_BIT_ARB &&
112       profileMask != WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB) {
113      SetLastError(ERROR_INVALID_PROFILE_ARB);
114      return NULL;
115   }
116
117   return (HGLRC) stw_create_context_attribs( hDC, layerPlane, (DHGLRC)(UINT_PTR)hShareContext,
118                                              majorVersion, minorVersion, contextFlags, profileMask );
119}
120