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gecko-dev/gfx/gl/GLLibraryEGL.cpp

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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "GLLibraryEGL.h"
#include "gfxCrashReporterUtils.h"
#include "gfxUtils.h"
#include "mozilla/Preferences.h"
#include "mozilla/Assertions.h"
#include "mozilla/unused.h"
#include "nsDirectoryServiceDefs.h"
#include "nsDirectoryServiceUtils.h"
#include "nsIGfxInfo.h"
#include "nsPrintfCString.h"
#ifdef XP_WIN
#include "nsWindowsHelpers.h"
#endif
#include "OGLShaderProgram.h"
#include "prenv.h"
#include "GLContext.h"
#include "GLContextProvider.h"
#include "gfxPrefs.h"
#include "ScopedGLHelpers.h"
namespace mozilla {
namespace gl {
StaticMutex GLLibraryEGL::sMutex;
GLLibraryEGL sEGLLibrary;
#ifdef MOZ_B2G
MOZ_THREAD_LOCAL(EGLContext) GLLibraryEGL::sCurrentContext;
#endif
// should match the order of EGLExtensions, and be null-terminated.
static const char *sEGLExtensionNames[] = {
"EGL_KHR_image_base",
"EGL_KHR_image_pixmap",
"EGL_KHR_gl_texture_2D_image",
"EGL_KHR_lock_surface",
"EGL_ANGLE_surface_d3d_texture_2d_share_handle",
"EGL_EXT_create_context_robustness",
"EGL_KHR_image",
"EGL_KHR_fence_sync",
"EGL_ANDROID_native_fence_sync",
"EGL_ANDROID_image_crop",
"EGL_ANGLE_platform_angle",
"EGL_ANGLE_platform_angle_d3d"
};
#if defined(ANDROID)
static PRLibrary* LoadApitraceLibrary()
{
// Initialization of gfx prefs here is only needed during the unit tests...
gfxPrefs::GetSingleton();
if (!gfxPrefs::UseApitrace()) {
return nullptr;
}
static PRLibrary* sApitraceLibrary = nullptr;
if (sApitraceLibrary)
return sApitraceLibrary;
nsCString logFile = Preferences::GetCString("gfx.apitrace.logfile");
if (logFile.IsEmpty()) {
logFile = "firefox.trace";
}
// The firefox process can't write to /data/local, but it can write
// to $GRE_HOME/
nsAutoCString logPath;
logPath.AppendPrintf("%s/%s", getenv("GRE_HOME"), logFile.get());
// apitrace uses the TRACE_FILE environment variable to determine where
// to log trace output to
printf_stderr("Logging GL tracing output to %s", logPath.get());
setenv("TRACE_FILE", logPath.get(), false);
printf_stderr("Attempting load of %s\n", APITRACE_LIB);
sApitraceLibrary = PR_LoadLibrary(APITRACE_LIB);
return sApitraceLibrary;
}
#endif // ANDROID
#ifdef XP_WIN
// see the comment in GLLibraryEGL::EnsureInitialized() for the rationale here.
static PRLibrary*
LoadLibraryForEGLOnWindows(const nsAString& filename)
{
nsCOMPtr<nsIFile> file;
nsresult rv = NS_GetSpecialDirectory(NS_GRE_DIR, getter_AddRefs(file));
if (NS_FAILED(rv))
return nullptr;
file->Append(filename);
PRLibrary* lib = nullptr;
rv = file->Load(&lib);
if (NS_FAILED(rv)) {
nsPrintfCString msg("Failed to load %s - Expect EGL initialization to fail",
NS_LossyConvertUTF16toASCII(filename).get());
NS_WARNING(msg.get());
}
return lib;
}
#endif // XP_WIN
static EGLDisplay
GetAndInitWARPDisplay(GLLibraryEGL& egl, void* displayType)
{
EGLint attrib_list[] = { LOCAL_EGL_PLATFORM_ANGLE_TYPE_ANGLE,
LOCAL_EGL_PLATFORM_ANGLE_TYPE_D3D11_WARP_ANGLE,
LOCAL_EGL_NONE };
EGLDisplay display = egl.fGetPlatformDisplayEXT(LOCAL_EGL_PLATFORM_ANGLE_ANGLE,
displayType,
attrib_list);
if (display == EGL_NO_DISPLAY)
return EGL_NO_DISPLAY;
if (!egl.fInitialize(display, nullptr, nullptr))
return EGL_NO_DISPLAY;
return display;
}
static bool
IsAccelAngleSupported(const nsCOMPtr<nsIGfxInfo>& gfxInfo)
{
int32_t angleSupport;
gfxUtils::ThreadSafeGetFeatureStatus(gfxInfo,
nsIGfxInfo::FEATURE_WEBGL_ANGLE,
&angleSupport);
return (angleSupport == nsIGfxInfo::FEATURE_STATUS_OK);
}
static EGLDisplay
GetAndInitDisplay(GLLibraryEGL& egl, void* displayType)
{
EGLDisplay display = egl.fGetDisplay(displayType);
if (display == EGL_NO_DISPLAY)
return EGL_NO_DISPLAY;
if (!egl.fInitialize(display, nullptr, nullptr))
return EGL_NO_DISPLAY;
return display;
}
static EGLDisplay
GetAndInitDisplayForAccelANGLE(GLLibraryEGL& egl)
{
EGLDisplay ret = 0;
// D3D11 ANGLE only works with OMTC; there's a bug in the non-OMTC layer
// manager, and it's pointless to try to fix it. We also don't try
// D3D11 ANGLE if the layer manager is prefering D3D9 (hrm, do we care?)
if (gfxPrefs::LayersOffMainThreadCompositionEnabled() &&
!gfxPrefs::LayersPreferD3D9())
{
if (gfxPrefs::WebGLANGLEForceD3D11())
return GetAndInitDisplay(egl, LOCAL_EGL_D3D11_ONLY_DISPLAY_ANGLE);
if (gfxPrefs::WebGLANGLETryD3D11() &&
gfxPlatform::CanUseDirect3D11ANGLE())
{
ret = GetAndInitDisplay(egl, LOCAL_EGL_D3D11_ELSE_D3D9_DISPLAY_ANGLE);
}
}
if (!ret) {
ret = GetAndInitDisplay(egl, EGL_DEFAULT_DISPLAY);
}
return ret;
}
bool
GLLibraryEGL::ReadbackEGLImage(EGLImage image, gfx::DataSourceSurface* out_surface)
{
StaticMutexAutoUnlock lock(sMutex);
if (!mReadbackGL) {
mReadbackGL = gl::GLContextProvider::CreateHeadless(gl::CreateContextFlags::NONE);
}
ScopedTexture destTex(mReadbackGL);
const GLuint target = LOCAL_GL_TEXTURE_EXTERNAL;
ScopedBindTexture autoTex(mReadbackGL, destTex.Texture(), target);
mReadbackGL->fTexParameteri(target, LOCAL_GL_TEXTURE_WRAP_S, LOCAL_GL_CLAMP_TO_EDGE);
mReadbackGL->fTexParameteri(target, LOCAL_GL_TEXTURE_WRAP_T, LOCAL_GL_CLAMP_TO_EDGE);
mReadbackGL->fTexParameteri(target, LOCAL_GL_TEXTURE_MAG_FILTER, LOCAL_GL_NEAREST);
mReadbackGL->fTexParameteri(target, LOCAL_GL_TEXTURE_MIN_FILTER, LOCAL_GL_NEAREST);
mReadbackGL->fEGLImageTargetTexture2D(target, image);
ShaderConfigOGL config = ShaderConfigFromTargetAndFormat(target,
out_surface->GetFormat());
int shaderConfig = config.mFeatures;
mReadbackGL->ReadTexImageHelper()->ReadTexImage(out_surface, 0, target,
out_surface->GetSize(), shaderConfig);
return true;
}
bool
GLLibraryEGL::EnsureInitialized(bool forceAccel)
{
if (mInitialized) {
return true;
}
mozilla::ScopedGfxFeatureReporter reporter("EGL");
#ifdef MOZ_B2G
if (!sCurrentContext.init())
MOZ_CRASH("GFX: Tls init failed");
#endif
#ifdef XP_WIN
if (!mEGLLibrary) {
// On Windows, the GLESv2, EGL and DXSDK libraries are shipped with libxul and
// we should look for them there. We have to load the libs in this
// order, because libEGL.dll depends on libGLESv2.dll which depends on the DXSDK
// libraries. This matters especially for WebRT apps which are in a different directory.
// See bug 760323 and bug 749459
// Also note that we intentionally leak the libs we load.
do {
// Windows 8.1 has d3dcompiler_47.dll in the system directory.
// Try it first. Note that _46 will never be in the system
// directory and we ship with at least _43. So there is no point
// trying _46 and _43 in the system directory.
if (LoadLibrarySystem32(L"d3dcompiler_47.dll"))
break;
#ifdef MOZ_D3DCOMPILER_VISTA_DLL
if (LoadLibraryForEGLOnWindows(NS_LITERAL_STRING(NS_STRINGIFY(MOZ_D3DCOMPILER_VISTA_DLL))))
break;
#endif
#ifdef MOZ_D3DCOMPILER_XP_DLL
if (LoadLibraryForEGLOnWindows(NS_LITERAL_STRING(NS_STRINGIFY(MOZ_D3DCOMPILER_XP_DLL))))
break;
#endif
MOZ_ASSERT(false, "d3dcompiler DLL loading failed.");
} while (false);
LoadLibraryForEGLOnWindows(NS_LITERAL_STRING("libGLESv2.dll"));
mEGLLibrary = LoadLibraryForEGLOnWindows(NS_LITERAL_STRING("libEGL.dll"));
if (!mEGLLibrary)
return false;
}
#else // !Windows
// On non-Windows (Android) we use system copies of libEGL. We look for
// the APITrace lib, libEGL.so, and libEGL.so.1 in that order.
#if defined(ANDROID)
if (!mEGLLibrary)
mEGLLibrary = LoadApitraceLibrary();
#endif
if (!mEGLLibrary) {
printf_stderr("Attempting load of libEGL.so\n");
mEGLLibrary = PR_LoadLibrary("libEGL.so");
}
#if defined(XP_UNIX)
if (!mEGLLibrary) {
mEGLLibrary = PR_LoadLibrary("libEGL.so.1");
}
#endif
if (!mEGLLibrary) {
NS_WARNING("Couldn't load EGL LIB.");
return false;
}
#endif // !Windows
#define SYMBOL(name) \
{ (PRFuncPtr*) &mSymbols.f##name, { "egl" #name, nullptr } }
GLLibraryLoader::SymLoadStruct earlySymbols[] = {
SYMBOL(GetDisplay),
SYMBOL(Terminate),
SYMBOL(GetCurrentSurface),
SYMBOL(GetCurrentContext),
SYMBOL(MakeCurrent),
SYMBOL(DestroyContext),
SYMBOL(CreateContext),
SYMBOL(DestroySurface),
SYMBOL(CreateWindowSurface),
SYMBOL(CreatePbufferSurface),
SYMBOL(CreatePixmapSurface),
SYMBOL(BindAPI),
SYMBOL(Initialize),
SYMBOL(ChooseConfig),
SYMBOL(GetError),
SYMBOL(GetConfigs),
SYMBOL(GetConfigAttrib),
SYMBOL(WaitNative),
SYMBOL(GetProcAddress),
SYMBOL(SwapBuffers),
SYMBOL(CopyBuffers),
SYMBOL(QueryString),
SYMBOL(QueryContext),
SYMBOL(BindTexImage),
SYMBOL(ReleaseTexImage),
SYMBOL(QuerySurface),
{ nullptr, { nullptr } }
};
if (!GLLibraryLoader::LoadSymbols(mEGLLibrary, &earlySymbols[0])) {
NS_WARNING("Couldn't find required entry points in EGL library (early init)");
return false;
}
GLLibraryLoader::SymLoadStruct optionalSymbols[] = {
// On Android 4.3 and up, certain features like ANDROID_native_fence_sync
// can only be queried by using a special eglQueryString.
{ (PRFuncPtr*) &mSymbols.fQueryStringImplementationANDROID,
{ "_Z35eglQueryStringImplementationANDROIDPvi", nullptr } },
{ nullptr, { nullptr } }
};
// Do not warn about the failure to load this - see bug 1092191
Unused << GLLibraryLoader::LoadSymbols(mEGLLibrary, &optionalSymbols[0],
nullptr, nullptr, false);
#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 18
MOZ_RELEASE_ASSERT(mSymbols.fQueryStringImplementationANDROID,
"Couldn't find eglQueryStringImplementationANDROID");
#endif
InitClientExtensions();
const auto lookupFunction =
(GLLibraryLoader::PlatformLookupFunction)mSymbols.fGetProcAddress;
// Client exts are ready. (But not display exts!)
if (IsExtensionSupported(ANGLE_platform_angle_d3d)) {
GLLibraryLoader::SymLoadStruct d3dSymbols[] = {
{ (PRFuncPtr*)&mSymbols.fGetPlatformDisplayEXT, { "eglGetPlatformDisplayEXT", nullptr } },
{ nullptr, { nullptr } }
};
bool success = GLLibraryLoader::LoadSymbols(mEGLLibrary,
&d3dSymbols[0],
lookupFunction);
if (!success) {
NS_ERROR("EGL supports ANGLE_platform_angle_d3d without exposing its functions!");
MarkExtensionUnsupported(ANGLE_platform_angle_d3d);
mSymbols.fGetPlatformDisplayEXT = nullptr;
}
}
// Check the ANGLE support the system has
nsCOMPtr<nsIGfxInfo> gfxInfo = do_GetService("@mozilla.org/gfx/info;1");
mIsANGLE = IsExtensionSupported(ANGLE_platform_angle);
EGLDisplay chosenDisplay = nullptr;
if (IsExtensionSupported(ANGLE_platform_angle_d3d)) {
bool accelAngleSupport = IsAccelAngleSupported(gfxInfo);
bool warpAngleSupport = gfxPlatform::CanUseDirect3D11ANGLE();
bool shouldTryAccel = forceAccel || accelAngleSupport;
bool shouldTryWARP = !shouldTryAccel && warpAngleSupport;
if (gfxPrefs::WebGLANGLEForceWARP()) {
shouldTryWARP = true;
shouldTryAccel = false;
}
// Fallback to a WARP display if non-WARP is blacklisted,
// or if WARP is forced
if (shouldTryWARP) {
chosenDisplay = GetAndInitWARPDisplay(*this, EGL_DEFAULT_DISPLAY);
if (chosenDisplay) {
mIsWARP = true;
}
}
if (!chosenDisplay) {
// If falling back to WARP did not work and we don't want to try
// using HW accelerated ANGLE, then fail.
if (!shouldTryAccel) {
NS_ERROR("Fallback WARP ANGLE context failed to initialize.");
return false;
}
// Hardware accelerated ANGLE path
chosenDisplay = GetAndInitDisplayForAccelANGLE(*this);
}
} else {
chosenDisplay = GetAndInitDisplay(*this, EGL_DEFAULT_DISPLAY);
}
if (!chosenDisplay) {
NS_WARNING("Failed to initialize a display.");
return false;
}
mEGLDisplay = chosenDisplay;
InitDisplayExtensions();
////////////////////////////////////
// Alright, load display exts.
if (IsExtensionSupported(KHR_lock_surface)) {
GLLibraryLoader::SymLoadStruct lockSymbols[] = {
{ (PRFuncPtr*) &mSymbols.fLockSurface, { "eglLockSurfaceKHR", nullptr } },
{ (PRFuncPtr*) &mSymbols.fUnlockSurface, { "eglUnlockSurfaceKHR", nullptr } },
{ nullptr, { nullptr } }
};
bool success = GLLibraryLoader::LoadSymbols(mEGLLibrary,
&lockSymbols[0],
lookupFunction);
if (!success) {
NS_ERROR("EGL supports KHR_lock_surface without exposing its functions!");
MarkExtensionUnsupported(KHR_lock_surface);
mSymbols.fLockSurface = nullptr;
mSymbols.fUnlockSurface = nullptr;
}
}
if (IsExtensionSupported(ANGLE_surface_d3d_texture_2d_share_handle)) {
GLLibraryLoader::SymLoadStruct d3dSymbols[] = {
{ (PRFuncPtr*) &mSymbols.fQuerySurfacePointerANGLE, { "eglQuerySurfacePointerANGLE", nullptr } },
{ nullptr, { nullptr } }
};
bool success = GLLibraryLoader::LoadSymbols(mEGLLibrary,
&d3dSymbols[0],
lookupFunction);
if (!success) {
NS_ERROR("EGL supports ANGLE_surface_d3d_texture_2d_share_handle without exposing its functions!");
MarkExtensionUnsupported(ANGLE_surface_d3d_texture_2d_share_handle);
mSymbols.fQuerySurfacePointerANGLE = nullptr;
}
}
if (IsExtensionSupported(KHR_fence_sync)) {
GLLibraryLoader::SymLoadStruct syncSymbols[] = {
{ (PRFuncPtr*) &mSymbols.fCreateSync, { "eglCreateSyncKHR", nullptr } },
{ (PRFuncPtr*) &mSymbols.fDestroySync, { "eglDestroySyncKHR", nullptr } },
{ (PRFuncPtr*) &mSymbols.fClientWaitSync, { "eglClientWaitSyncKHR", nullptr } },
{ (PRFuncPtr*) &mSymbols.fGetSyncAttrib, { "eglGetSyncAttribKHR", nullptr } },
{ nullptr, { nullptr } }
};
bool success = GLLibraryLoader::LoadSymbols(mEGLLibrary,
&syncSymbols[0],
lookupFunction);
if (!success) {
NS_ERROR("EGL supports KHR_fence_sync without exposing its functions!");
MarkExtensionUnsupported(KHR_fence_sync);
mSymbols.fCreateSync = nullptr;
mSymbols.fDestroySync = nullptr;
mSymbols.fClientWaitSync = nullptr;
mSymbols.fGetSyncAttrib = nullptr;
}
}
if (IsExtensionSupported(KHR_image) || IsExtensionSupported(KHR_image_base)) {
GLLibraryLoader::SymLoadStruct imageSymbols[] = {
{ (PRFuncPtr*) &mSymbols.fCreateImage, { "eglCreateImageKHR", nullptr } },
{ (PRFuncPtr*) &mSymbols.fDestroyImage, { "eglDestroyImageKHR", nullptr } },
{ nullptr, { nullptr } }
};
bool success = GLLibraryLoader::LoadSymbols(mEGLLibrary,
&imageSymbols[0],
lookupFunction);
if (!success) {
NS_ERROR("EGL supports KHR_image(_base) without exposing its functions!");
MarkExtensionUnsupported(KHR_image);
MarkExtensionUnsupported(KHR_image_base);
MarkExtensionUnsupported(KHR_image_pixmap);
mSymbols.fCreateImage = nullptr;
mSymbols.fDestroyImage = nullptr;
}
} else {
MarkExtensionUnsupported(KHR_image_pixmap);
}
if (IsExtensionSupported(ANDROID_native_fence_sync)) {
GLLibraryLoader::SymLoadStruct nativeFenceSymbols[] = {
{ (PRFuncPtr*) &mSymbols.fDupNativeFenceFDANDROID, { "eglDupNativeFenceFDANDROID", nullptr } },
{ nullptr, { nullptr } }
};
bool success = GLLibraryLoader::LoadSymbols(mEGLLibrary,
&nativeFenceSymbols[0],
lookupFunction);
if (!success) {
NS_ERROR("EGL supports ANDROID_native_fence_sync without exposing its functions!");
MarkExtensionUnsupported(ANDROID_native_fence_sync);
mSymbols.fDupNativeFenceFDANDROID = nullptr;
}
}
mInitialized = true;
reporter.SetSuccessful();
return true;
}
template<size_t N>
static void
MarkExtensions(const char* rawExtString, bool shouldDumpExts, const char* extType,
std::bitset<N>* const out)
{
MOZ_ASSERT(rawExtString);
const nsDependentCString extString(rawExtString);
std::vector<nsCString> extList;
SplitByChar(extString, ' ', &extList);
if (shouldDumpExts) {
printf_stderr("%u EGL %s extensions: (*: recognized)\n",
(uint32_t)extList.size(), extType);
}
MarkBitfieldByStrings(extList, shouldDumpExts, sEGLExtensionNames, out);
}
void
GLLibraryEGL::InitClientExtensions()
{
const bool shouldDumpExts = GLContext::ShouldDumpExts();
const char* rawExtString = nullptr;
#ifndef ANDROID
// Bug 1209612: Crashes on a number of android drivers.
// Ideally we would only blocklist this there, but for now we don't need the client
// extension list on ANDROID (we mostly need it on ANGLE), and we'd rather not crash.
rawExtString = (const char*)fQueryString(nullptr, LOCAL_EGL_EXTENSIONS);
#endif
if (!rawExtString) {
if (shouldDumpExts) {
printf_stderr("No EGL client extensions.\n");
}
return;
}
MarkExtensions(rawExtString, shouldDumpExts, "client", &mAvailableExtensions);
}
void
GLLibraryEGL::InitDisplayExtensions()
{
MOZ_ASSERT(mEGLDisplay);
const bool shouldDumpExts = GLContext::ShouldDumpExts();
const auto rawExtString = (const char*)fQueryString(mEGLDisplay,
LOCAL_EGL_EXTENSIONS);
if (!rawExtString) {
NS_WARNING("Failed to query EGL display extensions!.");
return;
}
MarkExtensions(rawExtString, shouldDumpExts, "display", &mAvailableExtensions);
}
void
GLLibraryEGL::DumpEGLConfig(EGLConfig cfg)
{
int attrval;
int err;
#define ATTR(_x) do { \
fGetConfigAttrib(mEGLDisplay, cfg, LOCAL_EGL_##_x, &attrval); \
if ((err = fGetError()) != 0x3000) { \
printf_stderr(" %s: ERROR (0x%04x)\n", #_x, err); \
} else { \
printf_stderr(" %s: %d (0x%04x)\n", #_x, attrval, attrval); \
} \
} while(0)
printf_stderr("EGL Config: %d [%p]\n", (int)(intptr_t)cfg, cfg);
ATTR(BUFFER_SIZE);
ATTR(ALPHA_SIZE);
ATTR(BLUE_SIZE);
ATTR(GREEN_SIZE);
ATTR(RED_SIZE);
ATTR(DEPTH_SIZE);
ATTR(STENCIL_SIZE);
ATTR(CONFIG_CAVEAT);
ATTR(CONFIG_ID);
ATTR(LEVEL);
ATTR(MAX_PBUFFER_HEIGHT);
ATTR(MAX_PBUFFER_PIXELS);
ATTR(MAX_PBUFFER_WIDTH);
ATTR(NATIVE_RENDERABLE);
ATTR(NATIVE_VISUAL_ID);
ATTR(NATIVE_VISUAL_TYPE);
ATTR(PRESERVED_RESOURCES);
ATTR(SAMPLES);
ATTR(SAMPLE_BUFFERS);
ATTR(SURFACE_TYPE);
ATTR(TRANSPARENT_TYPE);
ATTR(TRANSPARENT_RED_VALUE);
ATTR(TRANSPARENT_GREEN_VALUE);
ATTR(TRANSPARENT_BLUE_VALUE);
ATTR(BIND_TO_TEXTURE_RGB);
ATTR(BIND_TO_TEXTURE_RGBA);
ATTR(MIN_SWAP_INTERVAL);
ATTR(MAX_SWAP_INTERVAL);
ATTR(LUMINANCE_SIZE);
ATTR(ALPHA_MASK_SIZE);
ATTR(COLOR_BUFFER_TYPE);
ATTR(RENDERABLE_TYPE);
ATTR(CONFORMANT);
#undef ATTR
}
void
GLLibraryEGL::DumpEGLConfigs()
{
int nc = 0;
fGetConfigs(mEGLDisplay, nullptr, 0, &nc);
EGLConfig *ec = new EGLConfig[nc];
fGetConfigs(mEGLDisplay, ec, nc, &nc);
for (int i = 0; i < nc; ++i) {
printf_stderr ("========= EGL Config %d ========\n", i);
DumpEGLConfig(ec[i]);
}
delete [] ec;
}
#ifdef DEBUG
/*static*/ void
GLLibraryEGL::BeforeGLCall(const char* glFunction)
{
if (GLContext::DebugMode()) {
if (GLContext::DebugMode() & GLContext::DebugTrace)
printf_stderr("[egl] > %s\n", glFunction);
}
}
/*static*/ void
GLLibraryEGL::AfterGLCall(const char* glFunction)
{
if (GLContext::DebugMode() & GLContext::DebugTrace) {
printf_stderr("[egl] < %s\n", glFunction);
}
}
#endif
} /* namespace gl */
} /* namespace mozilla */
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