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1 : /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2 : * This Source Code Form is subject to the terms of the Mozilla Public
3 : * License, v. 2.0. If a copy of the MPL was not distributed with this
4 : * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5 :
6 : #ifndef GFX_GLXLIBRARY_H
7 : #define GFX_GLXLIBRARY_H
8 :
9 : #include "GLContextTypes.h"
10 : #include "prlink.h"
11 : typedef realGLboolean GLboolean;
12 :
13 : // stuff from glx.h
14 : #include "X11/Xlib.h"
15 : typedef struct __GLXcontextRec* GLXContext;
16 : typedef XID GLXPixmap;
17 : typedef XID GLXDrawable;
18 : /* GLX 1.3 and later */
19 : typedef struct __GLXFBConfigRec* GLXFBConfig;
20 : // end of stuff from glx.h
21 : #include "prenv.h"
22 :
23 : struct PRLibrary;
24 : class gfxASurface;
25 :
26 : namespace mozilla {
27 : namespace gl {
28 :
29 : class GLXLibrary
30 : {
31 : public:
32 3 : GLXLibrary()
33 3 : : mSymbols{nullptr}
34 : , mInitialized(false)
35 : , mTriedInitializing(false)
36 : , mUseTextureFromPixmap(false)
37 : , mDebug(false)
38 : , mHasRobustness(false)
39 : , mHasCreateContextAttribs(false)
40 : , mHasVideoSync(false)
41 : , mIsATI(false), mIsNVIDIA(false)
42 : , mClientIsMesa(false)
43 3 : , mOGLLibrary(nullptr)
44 3 : {}
45 :
46 : bool EnsureInitialized();
47 :
48 : private:
49 : void BeforeGLXCall() const;
50 : void AfterGLXCall() const;
51 :
52 : public:
53 :
54 : #ifdef DEBUG
55 : #define BEFORE_CALL BeforeGLXCall();
56 : #define AFTER_CALL AfterGLXCall();
57 : #else
58 : #define BEFORE_CALL
59 : #define AFTER_CALL
60 : #endif
61 :
62 : #define WRAP(X) \
63 : { \
64 : BEFORE_CALL \
65 : const auto ret = mSymbols. X ; \
66 : AFTER_CALL \
67 : return ret; \
68 : }
69 : #define VOID_WRAP(X) \
70 : { \
71 : BEFORE_CALL \
72 : mSymbols. X ; \
73 : AFTER_CALL \
74 : }
75 :
76 0 : void fDestroyContext(Display* display, GLXContext context) const
77 0 : VOID_WRAP( fDestroyContext(display, context) )
78 :
79 0 : Bool fMakeCurrent(Display* display, GLXDrawable drawable, GLXContext context) const
80 0 : WRAP( fMakeCurrent(display, drawable, context) )
81 :
82 0 : GLXContext fGetCurrentContext() const
83 0 : WRAP( fGetCurrentContext() )
84 :
85 0 : GLXFBConfig* fChooseFBConfig(Display* display, int screen, const int* attrib_list, int* nelements) const
86 0 : WRAP( fChooseFBConfig(display, screen, attrib_list, nelements) )
87 :
88 0 : GLXFBConfig* fGetFBConfigs(Display* display, int screen, int* nelements) const
89 0 : WRAP( fGetFBConfigs(display, screen, nelements) )
90 :
91 0 : GLXContext fCreateNewContext(Display* display, GLXFBConfig config, int render_type, GLXContext share_list, Bool direct) const
92 0 : WRAP( fCreateNewContext(display, config, render_type, share_list, direct) )
93 :
94 0 : int fGetFBConfigAttrib(Display* display, GLXFBConfig config, int attribute, int* value) const
95 0 : WRAP( fGetFBConfigAttrib(display, config, attribute, value) )
96 :
97 0 : void fSwapBuffers(Display* display, GLXDrawable drawable) const
98 0 : VOID_WRAP( fSwapBuffers(display, drawable) )
99 :
100 0 : const char* fQueryExtensionsString(Display* display, int screen) const
101 0 : WRAP( fQueryExtensionsString(display, screen) )
102 :
103 0 : const char* fGetClientString(Display* display, int screen) const
104 0 : WRAP( fGetClientString(display, screen) )
105 :
106 0 : const char* fQueryServerString(Display* display, int screen, int name) const
107 0 : WRAP( fQueryServerString(display, screen, name) )
108 :
109 0 : GLXPixmap fCreatePixmap(Display* display, GLXFBConfig config, Pixmap pixmap, const int* attrib_list) const
110 0 : WRAP( fCreatePixmap(display, config, pixmap, attrib_list) )
111 :
112 : GLXPixmap fCreateGLXPixmapWithConfig(Display* display, GLXFBConfig config, Pixmap pixmap) const
113 : WRAP( fCreateGLXPixmapWithConfig(display, config, pixmap) )
114 :
115 0 : void fDestroyPixmap(Display* display, GLXPixmap pixmap) const
116 0 : VOID_WRAP( fDestroyPixmap(display, pixmap) )
117 :
118 0 : Bool fQueryVersion(Display* display, int* major, int* minor) const
119 0 : WRAP( fQueryVersion(display, major, minor) )
120 :
121 0 : void fBindTexImage(Display* display, GLXDrawable drawable, int buffer, const int* attrib_list) const
122 0 : VOID_WRAP( fBindTexImageEXT(display, drawable, buffer, attrib_list) )
123 :
124 0 : void fReleaseTexImage(Display* display, GLXDrawable drawable, int buffer) const
125 0 : VOID_WRAP( fReleaseTexImageEXT(display, drawable, buffer) )
126 :
127 : void fWaitGL() const
128 : VOID_WRAP( fWaitGL() )
129 :
130 0 : void fWaitX() const
131 0 : VOID_WRAP( fWaitX() )
132 :
133 0 : GLXContext fCreateContextAttribs(Display* display, GLXFBConfig config, GLXContext share_list, Bool direct, const int* attrib_list) const
134 0 : WRAP( fCreateContextAttribsARB(display, config, share_list, direct, attrib_list) )
135 :
136 0 : int fGetVideoSync(unsigned int* count) const
137 0 : WRAP( fGetVideoSyncSGI(count) )
138 :
139 0 : int fWaitVideoSync(int divisor, int remainder, unsigned int* count) const
140 0 : WRAP( fWaitVideoSyncSGI(divisor, remainder, count) )
141 :
142 0 : void fSwapInterval(Display* dpy, GLXDrawable drawable, int interval) const
143 0 : VOID_WRAP( fSwapIntervalEXT(dpy, drawable, interval) )
144 :
145 : #undef WRAP
146 : #undef VOID_WRAP
147 : #undef BEFORE_CALL
148 : #undef AFTER_CALL
149 :
150 : ////
151 :
152 : GLXPixmap CreatePixmap(gfxASurface* aSurface);
153 : void DestroyPixmap(Display* aDisplay, GLXPixmap aPixmap);
154 : void BindTexImage(Display* aDisplay, GLXPixmap aPixmap);
155 : void ReleaseTexImage(Display* aDisplay, GLXPixmap aPixmap);
156 : void UpdateTexImage(Display* aDisplay, GLXPixmap aPixmap);
157 :
158 : ////
159 :
160 0 : bool UseTextureFromPixmap() { return mUseTextureFromPixmap; }
161 0 : bool HasRobustness() { return mHasRobustness; }
162 0 : bool HasCreateContextAttribs() { return mHasCreateContextAttribs; }
163 : bool SupportsTextureFromPixmap(gfxASurface* aSurface);
164 : bool SupportsVideoSync();
165 0 : bool SupportsSwapControl() const { return bool(mSymbols.fSwapIntervalEXT); }
166 0 : bool IsATI() { return mIsATI; }
167 0 : bool IsMesa() { return mClientIsMesa; }
168 :
169 0 : PRFuncPtr GetGetProcAddress() const {
170 0 : return (PRFuncPtr)mSymbols.fGetProcAddress;
171 : }
172 :
173 : private:
174 : struct {
175 : void (GLAPIENTRY *fDestroyContext) (Display*, GLXContext);
176 : Bool (GLAPIENTRY *fMakeCurrent) (Display*, GLXDrawable, GLXContext);
177 : GLXContext (GLAPIENTRY *fGetCurrentContext) ();
178 : void* (GLAPIENTRY *fGetProcAddress) (const char*);
179 : GLXFBConfig* (GLAPIENTRY *fChooseFBConfig) (Display*, int, const int*, int*);
180 : GLXFBConfig* (GLAPIENTRY *fGetFBConfigs) (Display*, int, int*);
181 : GLXContext (GLAPIENTRY *fCreateNewContext) (Display*, GLXFBConfig, int,
182 : GLXContext, Bool);
183 : int (GLAPIENTRY *fGetFBConfigAttrib) (Display*, GLXFBConfig, int, int*);
184 : void (GLAPIENTRY *fSwapBuffers) (Display*, GLXDrawable);
185 : const char* (GLAPIENTRY *fQueryExtensionsString) (Display*, int);
186 : const char* (GLAPIENTRY *fGetClientString) (Display*, int);
187 : const char* (GLAPIENTRY *fQueryServerString) (Display*, int, int);
188 : GLXPixmap (GLAPIENTRY *fCreatePixmap) (Display*, GLXFBConfig, Pixmap,
189 : const int*);
190 : GLXPixmap (GLAPIENTRY *fCreateGLXPixmapWithConfig) (Display*, GLXFBConfig,
191 : Pixmap);
192 : void (GLAPIENTRY *fDestroyPixmap) (Display*, GLXPixmap);
193 : Bool (GLAPIENTRY *fQueryVersion) (Display*, int*, int*);
194 : void (GLAPIENTRY *fWaitGL) ();
195 : void (GLAPIENTRY *fWaitX) ();
196 : void (GLAPIENTRY *fBindTexImageEXT) (Display*, GLXDrawable, int,
197 : const int*);
198 : void (GLAPIENTRY *fReleaseTexImageEXT) (Display*, GLXDrawable, int);
199 : GLXContext (GLAPIENTRY *fCreateContextAttribsARB) (Display*, GLXFBConfig,
200 : GLXContext, Bool,
201 : const int*);
202 : int (GLAPIENTRY *fGetVideoSyncSGI) (unsigned int*);
203 : int (GLAPIENTRY *fWaitVideoSyncSGI) (int, int, unsigned int*);
204 : void (GLAPIENTRY *fSwapIntervalEXT) (Display*, GLXDrawable, int);
205 : } mSymbols;
206 :
207 : #ifdef DEBUG
208 : void BeforeGLXCall();
209 : void AfterGLXCall();
210 : #endif
211 :
212 : bool mInitialized;
213 : bool mTriedInitializing;
214 : bool mUseTextureFromPixmap;
215 : bool mDebug;
216 : bool mHasRobustness;
217 : bool mHasCreateContextAttribs;
218 : bool mHasVideoSync;
219 : bool mIsATI;
220 : bool mIsNVIDIA;
221 : bool mClientIsMesa;
222 : PRLibrary* mOGLLibrary;
223 : };
224 :
225 : // a global GLXLibrary instance
226 : extern GLXLibrary sGLXLibrary;
227 :
228 : } /* namespace gl */
229 : } /* namespace mozilla */
230 : #endif /* GFX_GLXLIBRARY_H */
231 :
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