xref: /aosp_15_r20/external/angle/src/libANGLE/renderer/gl/wgl/FunctionsWGL.cpp (revision 8975f5c5ed3d1c378011245431ada316dfb6f244) 
1 //
2 // Copyright 2015 The ANGLE Project Authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file.
5 //
6 
7 // FunctionsWGL.h: Implements the FuntionsWGL class.
8 
9 #include "libANGLE/renderer/gl/wgl/FunctionsWGL.h"
10 
11 #include <algorithm>
12 
13 #include "common/string_utils.h"
14 
15 namespace rx
16 {
17 
18 template <typename T>
GetWGLProcAddress(HMODULE glModule,PFNWGLGETPROCADDRESSPROC getProcAddressWGL,const std::string & procName,T * outProcAddress)19 static void GetWGLProcAddress(HMODULE glModule,
20                               PFNWGLGETPROCADDRESSPROC getProcAddressWGL,
21                               const std::string &procName,
22                               T *outProcAddress)
23 {
24     T proc = nullptr;
25     if (getProcAddressWGL)
26     {
27         proc = reinterpret_cast<T>(getProcAddressWGL(procName.c_str()));
28     }
29 
30     if (!proc)
31     {
32         proc = reinterpret_cast<T>(GetProcAddress(glModule, procName.c_str()));
33     }
34 
35     *outProcAddress = proc;
36 }
37 
38 template <typename T>
GetWGLExtensionProcAddress(HMODULE glModule,PFNWGLGETPROCADDRESSPROC getProcAddressWGL,const std::vector<std::string> & extensions,const std::string & extensionName,const std::string & procName,T * outProcAddress)39 static void GetWGLExtensionProcAddress(HMODULE glModule,
40                                        PFNWGLGETPROCADDRESSPROC getProcAddressWGL,
41                                        const std::vector<std::string> &extensions,
42                                        const std::string &extensionName,
43                                        const std::string &procName,
44                                        T *outProcAddress)
45 {
46     T proc = nullptr;
47     if (std::find(extensions.begin(), extensions.end(), extensionName) != extensions.end())
48     {
49         GetWGLProcAddress(glModule, getProcAddressWGL, procName, &proc);
50     }
51 
52     *outProcAddress = proc;
53 }
54 
FunctionsWGL()55 FunctionsWGL::FunctionsWGL()
56     : copyContext(nullptr),
57       createContext(nullptr),
58       createLayerContext(nullptr),
59       deleteContext(nullptr),
60       getCurrentContext(nullptr),
61       getCurrentDC(nullptr),
62       getProcAddress(nullptr),
63       makeCurrent(nullptr),
64       shareLists(nullptr),
65       useFontBitmapsA(nullptr),
66       useFontBitmapsW(nullptr),
67       swapBuffers(nullptr),
68       useFontOutlinesA(nullptr),
69       useFontOutlinesW(nullptr),
70       describeLayerPlane(nullptr),
71       setLayerPaletteEntries(nullptr),
72       getLayerPaletteEntries(nullptr),
73       realizeLayerPalette(nullptr),
74       swapLayerBuffers(nullptr),
75       swapMultipleBuffers(nullptr),
76       getExtensionStringEXT(nullptr),
77       getExtensionStringARB(nullptr),
78       createContextAttribsARB(nullptr),
79       getPixelFormatAttribivARB(nullptr),
80       getPixelFormatAttribfvARB(nullptr),
81       choosePixelFormatARB(nullptr),
82       swapIntervalEXT(nullptr),
83       createPbufferARB(nullptr),
84       getPbufferDCARB(nullptr),
85       releasePbufferDCARB(nullptr),
86       destroyPbufferARB(nullptr),
87       queryPbufferARB(nullptr),
88       bindTexImageARB(nullptr),
89       releaseTexImageARB(nullptr),
90       setPbufferAttribARB(nullptr),
91       dxSetResourceShareHandleNV(nullptr),
92       dxOpenDeviceNV(nullptr),
93       dxCloseDeviceNV(nullptr),
94       dxRegisterObjectNV(nullptr),
95       dxUnregisterObjectNV(nullptr),
96       dxObjectAccessNV(nullptr),
97       dxLockObjectsNV(nullptr),
98       dxUnlockObjectsNV(nullptr)
99 {}
100 
~FunctionsWGL()101 FunctionsWGL::~FunctionsWGL() {}
102 
initialize(HMODULE glModule,HDC context)103 void FunctionsWGL::initialize(HMODULE glModule, HDC context)
104 {
105     // First grab the wglGetProcAddress function from the gl module
106     GetWGLProcAddress(glModule, nullptr, "wglGetProcAddress", &getProcAddress);
107 
108     // Load the core wgl functions
109     GetWGLProcAddress(glModule, getProcAddress, "wglCopyContext", &copyContext);
110     GetWGLProcAddress(glModule, getProcAddress, "wglCreateContext", &createContext);
111     GetWGLProcAddress(glModule, getProcAddress, "wglCreateLayerContext", &createLayerContext);
112     GetWGLProcAddress(glModule, getProcAddress, "wglDeleteContext", &deleteContext);
113     GetWGLProcAddress(glModule, getProcAddress, "wglGetCurrentContext", &getCurrentContext);
114     GetWGLProcAddress(glModule, getProcAddress, "wglGetCurrentDC", &getCurrentDC);
115     GetWGLProcAddress(glModule, getProcAddress, "wglMakeCurrent", &makeCurrent);
116     GetWGLProcAddress(glModule, getProcAddress, "wglShareLists", &shareLists);
117     GetWGLProcAddress(glModule, getProcAddress, "wglUseFontBitmapsA", &useFontBitmapsA);
118     GetWGLProcAddress(glModule, getProcAddress, "wglUseFontBitmapsW", &useFontBitmapsW);
119     swapBuffers = SwapBuffers;  // SwapBuffers is statically linked from GDI
120     GetWGLProcAddress(glModule, getProcAddress, "wglUseFontOutlinesA", &useFontOutlinesA);
121     GetWGLProcAddress(glModule, getProcAddress, "wglUseFontOutlinesW", &useFontOutlinesW);
122     GetWGLProcAddress(glModule, getProcAddress, "wglDescribeLayerPlane", &describeLayerPlane);
123     GetWGLProcAddress(glModule, getProcAddress, "wglSetLayerPaletteEntries",
124                       &setLayerPaletteEntries);
125     GetWGLProcAddress(glModule, getProcAddress, "wglGetLayerPaletteEntries",
126                       &getLayerPaletteEntries);
127     GetWGLProcAddress(glModule, getProcAddress, "wglRealizeLayerPalette", &realizeLayerPalette);
128     GetWGLProcAddress(glModule, getProcAddress, "wglSwapLayerBuffers", &swapLayerBuffers);
129     GetWGLProcAddress(glModule, getProcAddress, "wglSwapMultipleBuffers", &swapMultipleBuffers);
130 
131     // Load extension string getter functions
132     GetWGLProcAddress(glModule, getProcAddress, "wglGetExtensionsStringEXT",
133                       &getExtensionStringEXT);
134     GetWGLProcAddress(glModule, getProcAddress, "wglGetExtensionsStringARB",
135                       &getExtensionStringARB);
136 
137     std::string extensionString = "";
138     if (getExtensionStringEXT)
139     {
140         extensionString = getExtensionStringEXT();
141     }
142     else if (getExtensionStringARB && context)
143     {
144         extensionString = getExtensionStringARB(context);
145     }
146     angle::SplitStringAlongWhitespace(extensionString, &extensions);
147 
148     // Load the wgl extension functions by checking if the context supports the extension first
149 
150     // WGL_ARB_create_context
151     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_ARB_create_context",
152                                "wglCreateContextAttribsARB", &createContextAttribsARB);
153 
154     // WGL_ARB_pixel_format
155     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_ARB_pixel_format",
156                                "wglGetPixelFormatAttribivARB", &getPixelFormatAttribivARB);
157     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_ARB_pixel_format",
158                                "wglGetPixelFormatAttribfvARB", &getPixelFormatAttribfvARB);
159     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_ARB_pixel_format",
160                                "wglChoosePixelFormatARB", &choosePixelFormatARB);
161 
162     // WGL_EXT_swap_control
163     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_EXT_swap_control",
164                                "wglSwapIntervalEXT", &swapIntervalEXT);
165 
166     // WGL_ARB_pbuffer
167     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_ARB_pbuffer",
168                                "wglCreatePbufferARB", &createPbufferARB);
169     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_ARB_pbuffer",
170                                "wglGetPbufferDCARB", &getPbufferDCARB);
171     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_ARB_pbuffer",
172                                "wglReleasePbufferDCARB", &releasePbufferDCARB);
173     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_ARB_pbuffer",
174                                "wglDestroyPbufferARB", &destroyPbufferARB);
175     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_ARB_pbuffer",
176                                "wglQueryPbufferARB", &queryPbufferARB);
177 
178     // WGL_ARB_render_texture
179     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_ARB_render_texture",
180                                "wglBindTexImageARB", &bindTexImageARB);
181     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_ARB_render_texture",
182                                "wglReleaseTexImageARB", &releaseTexImageARB);
183     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_ARB_render_texture",
184                                "wglSetPbufferAttribARB", &setPbufferAttribARB);
185 
186     // WGL_NV_DX_interop
187     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_NV_DX_interop",
188                                "wglDXSetResourceShareHandleNV", &dxSetResourceShareHandleNV);
189     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_NV_DX_interop",
190                                "wglDXOpenDeviceNV", &dxOpenDeviceNV);
191     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_NV_DX_interop",
192                                "wglDXCloseDeviceNV", &dxCloseDeviceNV);
193     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_NV_DX_interop",
194                                "wglDXRegisterObjectNV", &dxRegisterObjectNV);
195     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_NV_DX_interop",
196                                "wglDXUnregisterObjectNV", &dxUnregisterObjectNV);
197     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_NV_DX_interop",
198                                "wglDXObjectAccessNV", &dxObjectAccessNV);
199     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_NV_DX_interop",
200                                "wglDXLockObjectsNV", &dxLockObjectsNV);
201     GetWGLExtensionProcAddress(glModule, getProcAddress, extensions, "WGL_NV_DX_interop",
202                                "wglDXUnlockObjectsNV", &dxUnlockObjectsNV);
203 }
204 
hasExtension(const std::string & ext) const205 bool FunctionsWGL::hasExtension(const std::string &ext) const
206 {
207     return std::find(extensions.begin(), extensions.end(), ext) != extensions.end();
208 }
209 }  // namespace rx
210