1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2016 Laurent Gomila (laurent@sfml-dev.org)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
// you must not claim that you wrote the original software.
// If you use this software in a product, an acknowledgment
// in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
// and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/Window/Win32/WglExtensions.hpp>
#include <SFML/Window/Context.hpp>
#include <cstdlib>
#include <cstring>
#include <cstddef>
#include <string>
static sf::GlFunctionPointer IntGetProcAddress(const char* name)
{
return sf::Context::getFunction(name);
}
int sfwgl_ext_EXT_swap_control = sfwgl_LOAD_FAILED;
int sfwgl_ext_EXT_framebuffer_sRGB = sfwgl_LOAD_FAILED;
int sfwgl_ext_ARB_framebuffer_sRGB = sfwgl_LOAD_FAILED;
int sfwgl_ext_ARB_multisample = sfwgl_LOAD_FAILED;
int sfwgl_ext_ARB_pixel_format = sfwgl_LOAD_FAILED;
int sfwgl_ext_ARB_pbuffer = sfwgl_LOAD_FAILED;
int sfwgl_ext_ARB_create_context = sfwgl_LOAD_FAILED;
int sfwgl_ext_ARB_create_context_profile = sfwgl_LOAD_FAILED;
int (CODEGEN_FUNCPTR *sf_ptrc_wglGetSwapIntervalEXT)(void) = NULL;
BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglSwapIntervalEXT)(int) = NULL;
static int Load_EXT_swap_control(void)
{
int numFailed = 0;
sf_ptrc_wglGetSwapIntervalEXT = reinterpret_cast<int (CODEGEN_FUNCPTR*)(void)>(IntGetProcAddress("wglGetSwapIntervalEXT"));
if (!sf_ptrc_wglGetSwapIntervalEXT)
numFailed++;
sf_ptrc_wglSwapIntervalEXT = reinterpret_cast<BOOL (CODEGEN_FUNCPTR*)(int)>(IntGetProcAddress("wglSwapIntervalEXT"));
if (!sf_ptrc_wglSwapIntervalEXT)
numFailed++;
return numFailed;
}
BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglChoosePixelFormatARB)(HDC, const int*, const FLOAT*, UINT, int*, UINT*) = NULL;
BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglGetPixelFormatAttribfvARB)(HDC, int, int, UINT, const int*, FLOAT*) = NULL;
BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglGetPixelFormatAttribivARB)(HDC, int, int, UINT, const int*, int*) = NULL;
static int Load_ARB_pixel_format(void)
{
int numFailed = 0;
sf_ptrc_wglChoosePixelFormatARB = reinterpret_cast<BOOL (CODEGEN_FUNCPTR*)(HDC, const int*, const FLOAT*, UINT, int*, UINT*)>(IntGetProcAddress("wglChoosePixelFormatARB"));
if (!sf_ptrc_wglChoosePixelFormatARB)
numFailed++;
sf_ptrc_wglGetPixelFormatAttribfvARB = reinterpret_cast<BOOL (CODEGEN_FUNCPTR *)(HDC, int, int, UINT, const int*, FLOAT*)>(IntGetProcAddress("wglGetPixelFormatAttribfvARB"));
if (!sf_ptrc_wglGetPixelFormatAttribfvARB)
numFailed++;
sf_ptrc_wglGetPixelFormatAttribivARB = reinterpret_cast<BOOL (CODEGEN_FUNCPTR*)(HDC, int, int, UINT, const int*, int*)>(IntGetProcAddress("wglGetPixelFormatAttribivARB"));
if (!sf_ptrc_wglGetPixelFormatAttribivARB)
numFailed++;
return numFailed;
}
HPBUFFERARB (CODEGEN_FUNCPTR *sf_ptrc_wglCreatePbufferARB)(HDC, int, int, int, const int*) = NULL;
BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglDestroyPbufferARB)(HPBUFFERARB) = NULL;
HDC (CODEGEN_FUNCPTR *sf_ptrc_wglGetPbufferDCARB)(HPBUFFERARB) = NULL;
BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglQueryPbufferARB)(HPBUFFERARB, int, int*) = NULL;
int (CODEGEN_FUNCPTR *sf_ptrc_wglReleasePbufferDCARB)(HPBUFFERARB, HDC) = NULL;
static int Load_ARB_pbuffer()
{
int numFailed = 0;
sf_ptrc_wglCreatePbufferARB = reinterpret_cast<HPBUFFERARB (CODEGEN_FUNCPTR*)(HDC, int, int, int, const int*)>(IntGetProcAddress("wglCreatePbufferARB"));
if (!sf_ptrc_wglCreatePbufferARB)
numFailed++;
sf_ptrc_wglDestroyPbufferARB = reinterpret_cast<BOOL (CODEGEN_FUNCPTR*)(HPBUFFERARB)>(IntGetProcAddress("wglDestroyPbufferARB"));
if (!sf_ptrc_wglDestroyPbufferARB)
numFailed++;
sf_ptrc_wglGetPbufferDCARB = reinterpret_cast<HDC (CODEGEN_FUNCPTR*)(HPBUFFERARB)>(IntGetProcAddress("wglGetPbufferDCARB"));
if (!sf_ptrc_wglGetPbufferDCARB)
numFailed++;
sf_ptrc_wglQueryPbufferARB = reinterpret_cast<BOOL (CODEGEN_FUNCPTR*)(HPBUFFERARB, int, int*)>(IntGetProcAddress("wglQueryPbufferARB"));
if (!sf_ptrc_wglQueryPbufferARB)
numFailed++;
sf_ptrc_wglReleasePbufferDCARB = reinterpret_cast<int (CODEGEN_FUNCPTR*)(HPBUFFERARB, HDC)>(IntGetProcAddress("wglReleasePbufferDCARB"));
if (!sf_ptrc_wglReleasePbufferDCARB)
numFailed++;
return numFailed;
}
HGLRC (CODEGEN_FUNCPTR *sf_ptrc_wglCreateContextAttribsARB)(HDC, HGLRC, const int*) = NULL;
static int Load_ARB_create_context(void)
{
int numFailed = 0;
sf_ptrc_wglCreateContextAttribsARB = reinterpret_cast<HGLRC (CODEGEN_FUNCPTR*)(HDC, HGLRC, const int*)>(IntGetProcAddress("wglCreateContextAttribsARB"));
if (!sf_ptrc_wglCreateContextAttribsARB)
numFailed++;
return numFailed;
}
static const char* (CODEGEN_FUNCPTR *sf_ptrc_wglGetExtensionsStringARB)(HDC) = NULL;
typedef int (*PFN_LOADFUNCPOINTERS)(void);
typedef struct sfwgl_StrToExtMap_s
{
const char* extensionName;
int* extensionVariable;
PFN_LOADFUNCPOINTERS LoadExtension;
} sfwgl_StrToExtMap;
static sfwgl_StrToExtMap ExtensionMap[8] = {
{"WGL_EXT_swap_control", &sfwgl_ext_EXT_swap_control, Load_EXT_swap_control},
{"WGL_EXT_framebuffer_sRGB", &sfwgl_ext_EXT_framebuffer_sRGB, NULL},
{"WGL_ARB_framebuffer_sRGB", &sfwgl_ext_ARB_framebuffer_sRGB, NULL},
{"WGL_ARB_multisample", &sfwgl_ext_ARB_multisample, NULL},
{"WGL_ARB_pixel_format", &sfwgl_ext_ARB_pixel_format, Load_ARB_pixel_format},
{"WGL_ARB_pbuffer", &sfwgl_ext_ARB_pbuffer, Load_ARB_pbuffer},
{"WGL_ARB_create_context", &sfwgl_ext_ARB_create_context, Load_ARB_create_context},
{"WGL_ARB_create_context_profile", &sfwgl_ext_ARB_create_context_profile, NULL}
};
static int g_extensionMapSize = 8;
static sfwgl_StrToExtMap* FindExtEntry(const char* extensionName)
{
sfwgl_StrToExtMap* currLoc = ExtensionMap;
for (int loop = 0; loop < g_extensionMapSize; ++loop, ++currLoc)
{
if (std::strcmp(extensionName, currLoc->extensionName) == 0)
return currLoc;
}
return NULL;
}
static void ClearExtensionVars(void)
{
sfwgl_ext_EXT_swap_control = sfwgl_LOAD_FAILED;
sfwgl_ext_EXT_framebuffer_sRGB = sfwgl_LOAD_FAILED;
sfwgl_ext_ARB_framebuffer_sRGB = sfwgl_LOAD_FAILED;
sfwgl_ext_ARB_multisample = sfwgl_LOAD_FAILED;
sfwgl_ext_ARB_pixel_format = sfwgl_LOAD_FAILED;
sfwgl_ext_ARB_pbuffer = sfwgl_LOAD_FAILED;
sfwgl_ext_ARB_create_context = sfwgl_LOAD_FAILED;
sfwgl_ext_ARB_create_context_profile = sfwgl_LOAD_FAILED;
}
static void LoadExtByName(const char* extensionName)
{
sfwgl_StrToExtMap* entry = NULL;
entry = FindExtEntry(extensionName);
if (entry)
{
if (entry->LoadExtension)
{
int numFailed = entry->LoadExtension();
if (numFailed == 0)
{
*(entry->extensionVariable) = sfwgl_LOAD_SUCCEEDED;
}
else
{
*(entry->extensionVariable) = sfwgl_LOAD_SUCCEEDED + numFailed;
}
}
else
{
*(entry->extensionVariable) = sfwgl_LOAD_SUCCEEDED;
}
}
}
static void ProcExtsFromExtString(const char* strExtList)
{
do
{
const char* begin = strExtList;
while ((*strExtList != ' ') && *strExtList)
strExtList++;
LoadExtByName(std::string(begin, strExtList).c_str());
} while (*strExtList++);
}
int sfwgl_LoadFunctions(HDC hdc)
{
ClearExtensionVars();
sf_ptrc_wglGetExtensionsStringARB = reinterpret_cast<const char* (CODEGEN_FUNCPTR*)(HDC)>(IntGetProcAddress("wglGetExtensionsStringARB"));
if (!sf_ptrc_wglGetExtensionsStringARB)
return sfwgl_LOAD_FAILED;
ProcExtsFromExtString(reinterpret_cast<const char*>(sf_ptrc_wglGetExtensionsStringARB(hdc)));
return sfwgl_LOAD_SUCCEEDED;
}
|
