bool
GLXLibrary::EnsureInitialized(LibType libType)
{
if (mInitialized) {
return true;
}
// Don't repeatedly try to initialize.
if (mTriedInitializing) {
return false;
}
mTriedInitializing = true;
// Force enabling s3 texture compression. (Bug 774134)
PR_SetEnv("force_s3tc_enable=true");
if (!mOGLLibrary) {
const char* libGLfilename = nullptr;
bool forceFeatureReport = false;
switch (libType) {
case MESA_LLVMPIPE_LIB:
libGLfilename = "mesallvmpipe.so";
forceFeatureReport = true;
break;
case OPENGL_LIB:
// see e.g. bug 608526: it is intrinsically interesting to know whether we have dynamically linked to libGL.so.1
// because at least the NVIDIA implementation requires an executable stack, which causes mprotect calls,
// which trigger glibc bug http://sourceware.org/bugzilla/show_bug.cgi?id=12225
#ifdef __OpenBSD__
libGLfilename = "libGL.so";
#else
libGLfilename = "libGL.so.1";
#endif
break;
default:
MOZ_CRASH("Invalid GLX library type.");
}
ScopedGfxFeatureReporter reporter(libGLfilename, forceFeatureReport);
mOGLLibrary = PR_LoadLibrary(libGLfilename);
if (!mOGLLibrary) {
NS_WARNING("Couldn't load OpenGL shared library.");
return false;
}
reporter.SetSuccessful();
}
if (PR_GetEnv("MOZ_GLX_DEBUG")) {
mDebug = true;
}
GLLibraryLoader::SymLoadStruct symbols[] = {
/* functions that were in GLX 1.0 */
{ (PRFuncPtr*) &xDestroyContextInternal, { "glXDestroyContext", nullptr } },
{ (PRFuncPtr*) &xMakeCurrentInternal, { "glXMakeCurrent", nullptr } },
{ (PRFuncPtr*) &xSwapBuffersInternal, { "glXSwapBuffers", nullptr } },
{ (PRFuncPtr*) &xQueryVersionInternal, { "glXQueryVersion", nullptr } },
{ (PRFuncPtr*) &xGetCurrentContextInternal, { "glXGetCurrentContext", nullptr } },
{ (PRFuncPtr*) &xWaitGLInternal, { "glXWaitGL", nullptr } },
{ (PRFuncPtr*) &xWaitXInternal, { "glXWaitX", nullptr } },
/* functions introduced in GLX 1.1 */
{ (PRFuncPtr*) &xQueryExtensionsStringInternal, { "glXQueryExtensionsString", nullptr } },
{ (PRFuncPtr*) &xGetClientStringInternal, { "glXGetClientString", nullptr } },
{ (PRFuncPtr*) &xQueryServerStringInternal, { "glXQueryServerString", nullptr } },
{ nullptr, { nullptr } }
};
GLLibraryLoader::SymLoadStruct symbols13[] = {
/* functions introduced in GLX 1.3 */
{ (PRFuncPtr*) &xChooseFBConfigInternal, { "glXChooseFBConfig", nullptr } },
{ (PRFuncPtr*) &xGetFBConfigAttribInternal, { "glXGetFBConfigAttrib", nullptr } },
// WARNING: xGetFBConfigs not set in symbols13_ext
{ (PRFuncPtr*) &xGetFBConfigsInternal, { "glXGetFBConfigs", nullptr } },
// WARNING: symbols13_ext sets xCreateGLXPixmapWithConfig instead
{ (PRFuncPtr*) &xCreatePixmapInternal, { "glXCreatePixmap", nullptr } },
{ (PRFuncPtr*) &xDestroyPixmapInternal, { "glXDestroyPixmap", nullptr } },
{ (PRFuncPtr*) &xCreateNewContextInternal, { "glXCreateNewContext", nullptr } },
{ nullptr, { nullptr } }
};
GLLibraryLoader::SymLoadStruct symbols13_ext[] = {
/* extension equivalents for functions introduced in GLX 1.3 */
// GLX_SGIX_fbconfig extension
{ (PRFuncPtr*) &xChooseFBConfigInternal, { "glXChooseFBConfigSGIX", nullptr } },
{ (PRFuncPtr*) &xGetFBConfigAttribInternal, { "glXGetFBConfigAttribSGIX", nullptr } },
// WARNING: no xGetFBConfigs equivalent in extensions
// WARNING: different from symbols13:
{ (PRFuncPtr*) &xCreateGLXPixmapWithConfigInternal, { "glXCreateGLXPixmapWithConfigSGIX", nullptr } },
{ (PRFuncPtr*) &xDestroyPixmapInternal, { "glXDestroyGLXPixmap", nullptr } }, // not from ext
{ (PRFuncPtr*) &xCreateNewContextInternal, { "glXCreateContextWithConfigSGIX", nullptr } },
{ nullptr, { nullptr } }
};
GLLibraryLoader::SymLoadStruct symbols14[] = {
/* functions introduced in GLX 1.4 */
{ (PRFuncPtr*) &xGetProcAddressInternal, { "glXGetProcAddress", nullptr } },
{ nullptr, { nullptr } }
};
GLLibraryLoader::SymLoadStruct symbols14_ext[] = {
/* extension equivalents for functions introduced in GLX 1.4 */
// GLX_ARB_get_proc_address extension
{ (PRFuncPtr*) &xGetProcAddressInternal, { "glXGetProcAddressARB", nullptr } },
{ nullptr, { nullptr } }
};
GLLibraryLoader::SymLoadStruct symbols_texturefrompixmap[] = {
{ (PRFuncPtr*) &xBindTexImageInternal, { "glXBindTexImageEXT", nullptr } },
{ (PRFuncPtr*) &xReleaseTexImageInternal, { "glXReleaseTexImageEXT", nullptr } },
{ nullptr, { nullptr } }
};
GLLibraryLoader::SymLoadStruct symbols_robustness[] = {
{ (PRFuncPtr*) &xCreateContextAttribsInternal, { "glXCreateContextAttribsARB", nullptr } },
{ nullptr, { nullptr } }
};
if (!GLLibraryLoader::LoadSymbols(mOGLLibrary, &symbols[0])) {
NS_WARNING("Couldn't find required entry point in OpenGL shared library");
return false;
}
Display *display = DefaultXDisplay();
int screen = DefaultScreen(display);
if (!xQueryVersion(display, &mGLXMajorVersion, &mGLXMinorVersion)) {
mGLXMajorVersion = 0;
mGLXMinorVersion = 0;
return false;
}
if (!GLXVersionCheck(1, 1))
// Not possible to query for extensions.
return false;
const char *clientVendor = xGetClientString(display, LOCAL_GLX_VENDOR);
const char *serverVendor = xQueryServerString(display, screen, LOCAL_GLX_VENDOR);
const char *extensionsStr = xQueryExtensionsString(display, screen);
GLLibraryLoader::SymLoadStruct *sym13;
if (!GLXVersionCheck(1, 3)) {
// Even if we don't have 1.3, we might have equivalent extensions
// (as on the Intel X server).
if (!HasExtension(extensionsStr, "GLX_SGIX_fbconfig")) {
return false;
}
sym13 = symbols13_ext;
} else {
sym13 = symbols13;
}
if (!GLLibraryLoader::LoadSymbols(mOGLLibrary, sym13)) {
NS_WARNING("Couldn't find required entry point in OpenGL shared library");
return false;
}
GLLibraryLoader::SymLoadStruct *sym14;
if (!GLXVersionCheck(1, 4)) {
// Even if we don't have 1.4, we might have equivalent extensions
// (as on the Intel X server).
if (!HasExtension(extensionsStr, "GLX_ARB_get_proc_address")) {
return false;
}
sym14 = symbols14_ext;
} else {
sym14 = symbols14;
}
if (!GLLibraryLoader::LoadSymbols(mOGLLibrary, sym14)) {
NS_WARNING("Couldn't find required entry point in OpenGL shared library");
return false;
}
if (HasExtension(extensionsStr, "GLX_EXT_texture_from_pixmap") &&
GLLibraryLoader::LoadSymbols(mOGLLibrary, symbols_texturefrompixmap,
(GLLibraryLoader::PlatformLookupFunction)&xGetProcAddress))
{
#ifdef MOZ_WIDGET_GTK
mUseTextureFromPixmap = gfxPlatformGtk::GetPlatform()->UseXRender();
#else
mUseTextureFromPixmap = true;
#endif
} else {
mUseTextureFromPixmap = false;
NS_WARNING("Texture from pixmap disabled");
}
if (HasExtension(extensionsStr, "GLX_ARB_create_context_robustness") &&
GLLibraryLoader::LoadSymbols(mOGLLibrary, symbols_robustness)) {
mHasRobustness = true;
}
mIsATI = serverVendor && DoesStringMatch(serverVendor, "ATI");
mIsNVIDIA = serverVendor && DoesStringMatch(serverVendor, "NVIDIA Corporation");
mClientIsMesa = clientVendor && DoesStringMatch(clientVendor, "Mesa");
mInitialized = true;
mLibType = libType;
return true;
}
PRBool
GLXLibrary::EnsureInitialized()
{
if (mInitialized) {
return PR_TRUE;
}
if (!mOGLLibrary) {
mOGLLibrary = PR_LoadLibrary("libGL.so.1");
if (!mOGLLibrary) {
NS_WARNING("Couldn't load OpenGL shared library.");
return PR_FALSE;
}
}
LibrarySymbolLoader::SymLoadStruct symbols[] = {
{ (PRFuncPtr*) &xDeleteContext, { "glXDestroyContext", NULL } },
{ (PRFuncPtr*) &xMakeCurrent, { "glXMakeCurrent", NULL } },
{ (PRFuncPtr*) &xGetProcAddress, { "glXGetProcAddress", NULL } },
{ (PRFuncPtr*) &xChooseVisual, { "glXChooseVisual", NULL } },
{ (PRFuncPtr*) &xChooseFBConfig, { "glXChooseFBConfig", NULL } },
{ (PRFuncPtr*) &xGetFBConfigs, { "glXGetFBConfigs", NULL } },
{ (PRFuncPtr*) &xCreatePbuffer, { "glXCreatePbuffer", NULL } },
{ (PRFuncPtr*) &xCreateNewContext, { "glXCreateNewContext", NULL } },
{ (PRFuncPtr*) &xDestroyPbuffer, { "glXDestroyPbuffer", NULL } },
{ (PRFuncPtr*) &xGetVisualFromFBConfig, { "glXGetVisualFromFBConfig", NULL } },
{ (PRFuncPtr*) &xGetFBConfigAttrib, { "glXGetFBConfigAttrib", NULL } },
{ (PRFuncPtr*) &xSwapBuffers, { "glXSwapBuffers", NULL } },
{ (PRFuncPtr*) &xQueryServerString, { "glXQueryServerString", NULL } },
{ (PRFuncPtr*) &xCreatePixmap, { "glXCreatePixmap", NULL } },
{ (PRFuncPtr*) &xDestroyPixmap, { "glXDestroyPixmap", NULL } },
{ (PRFuncPtr*) &xGetClientString, { "glXGetClientString", NULL } },
{ (PRFuncPtr*) &xCreateContext, { "glXCreateContext", NULL } },
{ NULL, { NULL } }
};
if (!LibrarySymbolLoader::LoadSymbols(mOGLLibrary, &symbols[0])) {
NS_WARNING("Couldn't find required entry point in OpenGL shared library");
return PR_FALSE;
}
const char *vendor = xQueryServerString(DefaultXDisplay(),
DefaultScreen(DefaultXDisplay()),
GLX_VENDOR);
const char *serverVersionStr = xQueryServerString(DefaultXDisplay(),
DefaultScreen(DefaultXDisplay()),
GLX_VERSION);
const char *clientVersionStr = xGetClientString(DefaultXDisplay(),
GLX_VERSION);
int serverVersion = 0, clientVersion = 0;
if (serverVersionStr &&
strlen(serverVersionStr) >= 3 &&
serverVersionStr[1] == '.')
{
serverVersion = (serverVersionStr[0] - '0') << 8 | (serverVersionStr[2] - '0');
}
if (clientVersionStr &&
strlen(clientVersionStr) >= 3 &&
clientVersionStr[1] == '.')
{
clientVersion = (clientVersionStr[0] - '0') << 8 | (clientVersionStr[2] - '0');
}
gGLXVersion = PR_MIN(clientVersion, serverVersion);
if (gGLXVersion < 0x0103)
return PR_FALSE;
gIsATI = vendor && strstr(vendor, "ATI");
gIsChromium = (vendor && strstr(vendor, "Chromium")) ||
(serverVersion && strstr(serverVersionStr, "Chromium"));
mInitialized = PR_TRUE;
return PR_TRUE;
}
