Bug 1401455 - Expose glxChooseVisual() in GLXLibrary r=jgilbert

MozReview-Commit-ID: CdG2TAJA2Yc

gfx/gl/GLContextProviderGLX.cpp

@@ -119,6 +119,7 @@ GLXLibrary::EnsureInitialized()
 
         /* functions introduced in GLX 1.3 */
         SYMBOL(ChooseFBConfig),
+        SYMBOL(ChooseVisual),
         SYMBOL(GetFBConfigAttrib),
         SYMBOL(GetFBConfigs),
         SYMBOL(CreatePixmap),

gfx/gl/GLXLibrary.h

@@ -12,6 +12,7 @@ typedef realGLboolean GLboolean;
 
 // stuff from glx.h
 #include "X11/Xlib.h"
+#include "X11/Xutil.h" // for XVisualInfo
 typedef struct __GLXcontextRec* GLXContext;
 typedef XID GLXPixmap;
 typedef XID GLXDrawable;
@@ -85,6 +86,9 @@ public:
     GLXFBConfig* fChooseFBConfig(Display* display, int screen, const int* attrib_list, int* nelements) const
         WRAP(    fChooseFBConfig(display, screen, attrib_list, nelements) )
 
+    XVisualInfo* fChooseVisual(Display* display, int screen, int* attrib_list) const
+        WRAP(    fChooseVisual(display, screen, attrib_list) )
+
     GLXFBConfig* fGetFBConfigs(Display* display, int screen, int* nelements) const
         WRAP(    fGetFBConfigs(display, screen, nelements) )
 
@@ -177,6 +181,7 @@ private:
         GLXContext   (GLAPIENTRY *fGetCurrentContext) ();
         void*        (GLAPIENTRY *fGetProcAddress) (const char*);
         GLXFBConfig* (GLAPIENTRY *fChooseFBConfig) (Display*, int, const int*, int*);
+        XVisualInfo* (GLAPIENTRY *fChooseVisual) (Display*, int, const int*);
         GLXFBConfig* (GLAPIENTRY *fGetFBConfigs) (Display*, int, int*);
         GLXContext   (GLAPIENTRY *fCreateNewContext) (Display*, GLXFBConfig, int,
                                                       GLXContext, Bool);