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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 "gfxConfig.h"
#include "gfxCrashReporterUtils.h"
#include "gfxUtils.h"
#include "mozilla/Preferences.h"
#include "mozilla/Assertions.h"
#include "mozilla/Telemetry.h"
#include "mozilla/Tokenizer.h"
#include "mozilla/ScopeExit.h"
#include "mozilla/Unused.h"
#include "mozilla/webrender/RenderThread.h"
#include "nsDirectoryServiceDefs.h"
#include "nsDirectoryServiceUtils.h"
#include "nsIGfxInfo.h"
#include "nsPrintfCString.h"
#ifdef XP_WIN
#include "mozilla/gfx/DeviceManagerDx.h"
#include "nsWindowsHelpers.h"
#include <d3d11.h>
#endif
#include "OGLShaderProgram.h"
#include "prenv.h"
#include "prsystem.h"
#include "GLContext.h"
#include "GLContextProvider.h"
#include "gfxPrefs.h"
#include "ScopedGLHelpers.h"
#ifdef MOZ_WIDGET_GTK
#include <gdk/gdk.h>
#ifdef MOZ_WAYLAND
#include <gdk/gdkwayland.h>
#include <dlfcn.h>
#endif // MOZ_WIDGET_GTK
#endif // MOZ_WAYLAND
namespace mozilla {
namespace gl {
StaticMutex GLLibraryEGL::sMutex;
StaticRefPtr<GLLibraryEGL> GLLibraryEGL::sEGLLibrary;
// 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",
"EGL_ANGLE_d3d_share_handle_client_buffer",
"EGL_KHR_create_context",
"EGL_KHR_stream",
"EGL_KHR_stream_consumer_gltexture",
"EGL_EXT_device_query",
"EGL_NV_stream_consumer_gltexture_yuv",
"EGL_ANGLE_stream_producer_d3d_texture",
"EGL_ANGLE_device_creation",
"EGL_ANGLE_device_creation_d3d11",
"EGL_KHR_surfaceless_context",
"EGL_KHR_create_context_no_error"
};
#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;
nsAutoCString logFile;
Preferences::GetCString("gfx.apitrace.logfile", 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)
{
nsAutoString path(gfx::gfxVars::GREDirectory());
path.Append(PR_GetDirectorySeparator());
path.Append(filename);
PRLibSpec lspec;
lspec.type = PR_LibSpec_PathnameU;
lspec.value.pathname_u = path.get();
return PR_LoadLibraryWithFlags(lspec, PR_LD_LAZY | PR_LD_LOCAL);
}
#endif // XP_WIN
static EGLDisplay
GetAndInitWARPDisplay(GLLibraryEGL& egl, void* displayType)
{
EGLint attrib_list[] = { LOCAL_EGL_PLATFORM_ANGLE_DEVICE_TYPE_ANGLE,
LOCAL_EGL_PLATFORM_ANGLE_DEVICE_TYPE_WARP_ANGLE,
// Requires:
LOCAL_EGL_PLATFORM_ANGLE_TYPE_ANGLE,
LOCAL_EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE,
LOCAL_EGL_NONE };
EGLDisplay display = egl.fGetPlatformDisplayEXT(LOCAL_EGL_PLATFORM_ANGLE_ANGLE,
displayType,
attrib_list);
if (display == EGL_NO_DISPLAY) {
const EGLint err = egl.fGetError();
if (err != LOCAL_EGL_SUCCESS) {
gfxCriticalError() << "Unexpected GL error: " << gfx::hexa(err);
MOZ_CRASH("GFX: Unexpected GL error.");
}
return EGL_NO_DISPLAY;
}
if (!egl.fInitialize(display, nullptr, nullptr))
return EGL_NO_DISPLAY;
return display;
}
static EGLDisplay
GetAndInitDisplayForWebRender(GLLibraryEGL& egl, void* displayType)
{
#ifdef XP_WIN
const EGLint attrib_list[] = { LOCAL_EGL_EXPERIMENTAL_PRESENT_PATH_ANGLE,
LOCAL_EGL_EXPERIMENTAL_PRESENT_PATH_FAST_ANGLE,
LOCAL_EGL_NONE };
RefPtr<ID3D11Device> d3d11Device = gfx::DeviceManagerDx::Get()->GetCompositorDevice();
if (!d3d11Device) {
gfxCriticalNote << "Failed to get compositor device for EGLDisplay";
return EGL_NO_DISPLAY;
}
EGLDeviceEXT eglDevice = egl.fCreateDeviceANGLE(LOCAL_EGL_D3D11_DEVICE_ANGLE, reinterpret_cast<void *>(d3d11Device.get()), nullptr);
if (!eglDevice) {
gfxCriticalNote << "Failed to get EGLDeviceEXT of D3D11Device";
return EGL_NO_DISPLAY;
}
// Create an EGLDisplay using the EGLDevice
EGLDisplay display = egl.fGetPlatformDisplayEXT(LOCAL_EGL_PLATFORM_DEVICE_EXT, eglDevice, attrib_list);
if (!display) {
gfxCriticalNote << "Failed to get EGLDisplay of D3D11Device";
return EGL_NO_DISPLAY;
}
if (display == EGL_NO_DISPLAY) {
const EGLint err = egl.fGetError();
if (err != LOCAL_EGL_SUCCESS) {
gfxCriticalError() << "Unexpected GL error: " << gfx::hexa(err);
MOZ_CRASH("GFX: Unexpected GL error.");
}
return EGL_NO_DISPLAY;
}
if (!egl.fInitialize(display, nullptr, nullptr)) {
const EGLint err = egl.fGetError();
if (err != LOCAL_EGL_SUCCESS) {
gfxCriticalError() << "Failed to initialize EGLDisplay for WebRender error: " << gfx::hexa(err);
}
return EGL_NO_DISPLAY;
}
return display;
#else
return EGL_NO_DISPLAY;
#endif
}
static bool
IsAccelAngleSupported(const nsCOMPtr<nsIGfxInfo>& gfxInfo,
nsACString* const out_failureId)
{
if (wr::RenderThread::IsInRenderThread()) {
// We can only enter here with WebRender, so assert that this is a
// WebRender-enabled build.
#ifndef MOZ_BUILD_WEBRENDER
MOZ_ASSERT(false);
#endif
return true;
}
int32_t angleSupport;
nsCString failureId;
gfxUtils::ThreadSafeGetFeatureStatus(gfxInfo,
nsIGfxInfo::FEATURE_WEBGL_ANGLE,
failureId,
&angleSupport);
if (failureId.IsEmpty() && angleSupport != nsIGfxInfo::FEATURE_STATUS_OK) {
// This shouldn't happen, if we see this it's because we've missed
// some failure paths
failureId = NS_LITERAL_CSTRING("FEATURE_FAILURE_ACCL_ANGLE_NOT_OK");
}
if (out_failureId->IsEmpty()) {
*out_failureId = failureId;
}
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;
}
class AngleErrorReporting {
public:
AngleErrorReporting()
: mFailureId(nullptr)
{
// No static constructor
}
void SetFailureId(nsACString* const aFailureId)
{
mFailureId = aFailureId;
}
void logError(const char *errorMessage)
{
if (!mFailureId) {
return;
}
nsCString str(errorMessage);
Tokenizer tokenizer(str);
// Parse "ANGLE Display::initialize error " << error.getID() << ": "
// << error.getMessage()
nsCString currWord;
Tokenizer::Token intToken;
if (tokenizer.CheckWord("ANGLE") &&
tokenizer.CheckWhite() &&
tokenizer.CheckWord("Display") &&
tokenizer.CheckChar(':') &&
tokenizer.CheckChar(':') &&
tokenizer.CheckWord("initialize") &&
tokenizer.CheckWhite() &&
tokenizer.CheckWord("error") &&
tokenizer.CheckWhite() &&
tokenizer.Check(Tokenizer::TOKEN_INTEGER, intToken)) {
*mFailureId = "FAILURE_ID_ANGLE_ID_";
mFailureId->AppendPrintf("%" PRIu64, intToken.AsInteger());
} else {
*mFailureId = "FAILURE_ID_ANGLE_UNKNOWN";
}
}
private:
nsACString* mFailureId;
};
AngleErrorReporting gAngleErrorReporter;
static EGLDisplay
GetAndInitDisplayForAccelANGLE(GLLibraryEGL& egl, nsACString* const out_failureId)
{
EGLDisplay ret = 0;
if (wr::RenderThread::IsInRenderThread()) {
return GetAndInitDisplayForWebRender(egl, EGL_DEFAULT_DISPLAY);
}
FeatureState& d3d11ANGLE = gfxConfig::GetFeature(Feature::D3D11_HW_ANGLE);
if (!gfxPrefs::WebGLANGLETryD3D11())
d3d11ANGLE.UserDisable("User disabled D3D11 ANGLE by pref",
NS_LITERAL_CSTRING("FAILURE_ID_ANGLE_PREF"));
if (gfxPrefs::WebGLANGLEForceD3D11())
d3d11ANGLE.UserForceEnable("User force-enabled D3D11 ANGLE on disabled hardware");
gAngleErrorReporter.SetFailureId(out_failureId);
auto guardShutdown = mozilla::MakeScopeExit([&] {
gAngleErrorReporter.SetFailureId(nullptr);
// NOTE: Ideally we should be calling ANGLEPlatformShutdown after the
// ANGLE display is destroyed. However gAngleErrorReporter
// will live longer than the ANGLE display so we're fine.
});
if (gfxConfig::IsForcedOnByUser(Feature::D3D11_HW_ANGLE)) {
return GetAndInitDisplay(egl, LOCAL_EGL_D3D11_ONLY_DISPLAY_ANGLE);
}
if (d3d11ANGLE.IsEnabled()) {
ret = GetAndInitDisplay(egl, LOCAL_EGL_D3D11_ELSE_D3D9_DISPLAY_ANGLE);
}
if (!ret) {
ret = GetAndInitDisplay(egl, EGL_DEFAULT_DISPLAY);
}
if (!ret && out_failureId->IsEmpty()) {
*out_failureId = NS_LITERAL_CSTRING("FEATURE_FAILURE_ACCL_ANGLE_NO_DISP");
}
return ret;
}
bool
GLLibraryEGL::ReadbackEGLImage(EGLImage image, gfx::DataSourceSurface* out_surface)
{
StaticMutexAutoUnlock lock(sMutex);
if (!mReadbackGL) {
nsCString discardFailureId;
mReadbackGL = gl::GLContextProvider::CreateHeadless(gl::CreateContextFlags::NONE,
&discardFailureId);
}
ScopedTexture destTex(mReadbackGL);
const GLuint target = mReadbackGL->GetPreferredEGLImageTextureTarget();
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;
}
/* static */ bool
GLLibraryEGL::EnsureInitialized(bool forceAccel, nsACString* const out_failureId) {
if (!sEGLLibrary) {
sEGLLibrary = new GLLibraryEGL();
}
return sEGLLibrary->DoEnsureInitialized(forceAccel, out_failureId);
}
bool
GLLibraryEGL::DoEnsureInitialized(bool forceAccel, nsACString* const out_failureId)
{
if (mInitialized && !mSymbols.fTerminate) {
*out_failureId = NS_LITERAL_CSTRING("FEATURE_FAILURE_EGL_DESTROYED");
MOZ_ASSERT(false);
return false;
}
if (mInitialized) {
return true;
}
mozilla::ScopedGfxFeatureReporter reporter("EGL");
#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. So there is no point trying _46 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
MOZ_ASSERT(false, "d3dcompiler DLL loading failed.");
} while (false);
LoadLibraryForEGLOnWindows(NS_LITERAL_STRING("libGLESv2.dll"));
mEGLLibrary = LoadLibraryForEGLOnWindows(NS_LITERAL_STRING("libEGL.dll"));
if (!mEGLLibrary) {
*out_failureId = NS_LITERAL_CSTRING("FEATURE_FAILURE_EGL_LOAD");
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.");
*out_failureId = NS_LITERAL_CSTRING("FEATURE_FAILURE_EGL_LOAD_2");
return false;
}
#endif // !Windows
#define SYMBOL(X) { (PRFuncPtr*)&mSymbols.f##X, { "egl" #X, nullptr } }
#define END_OF_SYMBOLS { nullptr, { 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(CreatePbufferFromClientBuffer),
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(SwapInterval),
SYMBOL(QuerySurface),
END_OF_SYMBOLS
};
if (!GLLibraryLoader::LoadSymbols(mEGLLibrary, earlySymbols)) {
NS_WARNING("Couldn't find required entry points in EGL library (early init)");
*out_failureId = NS_LITERAL_CSTRING("FEATURE_FAILURE_EGL_SYM");
return false;
}
{
const char internalFuncName[] = "_Z35eglQueryStringImplementationANDROIDPvi";
const auto& internalFunc = PR_FindFunctionSymbol(mEGLLibrary, internalFuncName);
if (internalFunc) {
*(PRFuncPtr*)&mSymbols.fQueryString = internalFunc;
}
}
InitClientExtensions();
const auto lookupFunction =
(GLLibraryLoader::PlatformLookupFunction)mSymbols.fGetProcAddress;
const auto fnLoadSymbols = [&](const GLLibraryLoader::SymLoadStruct* symbols) {
if (GLLibraryLoader::LoadSymbols(mEGLLibrary, symbols, lookupFunction))
return true;
ClearSymbols(symbols);
return false;
};
// Check the ANGLE support the system has
nsCOMPtr<nsIGfxInfo> gfxInfo = do_GetService("@mozilla.org/gfx/info;1");
mIsANGLE = IsExtensionSupported(ANGLE_platform_angle);
// Client exts are ready. (But not display exts!)
if (mIsANGLE) {
MOZ_ASSERT(IsExtensionSupported(ANGLE_platform_angle_d3d));
const GLLibraryLoader::SymLoadStruct angleSymbols[] = {
SYMBOL(GetPlatformDisplayEXT),
END_OF_SYMBOLS
};
if (!fnLoadSymbols(angleSymbols)) {
gfxCriticalError() << "Failed to load ANGLE symbols!";
return false;
}
MOZ_ASSERT(IsExtensionSupported(ANGLE_platform_angle_d3d));
const GLLibraryLoader::SymLoadStruct createDeviceSymbols[] = {
SYMBOL(CreateDeviceANGLE),
SYMBOL(ReleaseDeviceANGLE),
END_OF_SYMBOLS
};
if (!fnLoadSymbols(createDeviceSymbols)) {
NS_ERROR("EGL supports ANGLE_device_creation without exposing its functions!");
MarkExtensionUnsupported(ANGLE_device_creation);
}
}
mEGLDisplay = CreateDisplay(forceAccel, gfxInfo, out_failureId);
if (!mEGLDisplay) {
return false;
}
InitDisplayExtensions();
////////////////////////////////////
// Alright, load display exts.
if (IsExtensionSupported(KHR_lock_surface)) {
const GLLibraryLoader::SymLoadStruct lockSymbols[] = {
SYMBOL(LockSurfaceKHR),
SYMBOL(UnlockSurfaceKHR),
END_OF_SYMBOLS
};
if (!fnLoadSymbols(lockSymbols)) {
NS_ERROR("EGL supports KHR_lock_surface without exposing its functions!");
MarkExtensionUnsupported(KHR_lock_surface);
}
}
if (IsExtensionSupported(ANGLE_surface_d3d_texture_2d_share_handle)) {
const GLLibraryLoader::SymLoadStruct d3dSymbols[] = {
SYMBOL(QuerySurfacePointerANGLE),
END_OF_SYMBOLS
};
if (!fnLoadSymbols(d3dSymbols)) {
NS_ERROR("EGL supports ANGLE_surface_d3d_texture_2d_share_handle without exposing its functions!");
MarkExtensionUnsupported(ANGLE_surface_d3d_texture_2d_share_handle);
}
}
if (IsExtensionSupported(KHR_fence_sync)) {
const GLLibraryLoader::SymLoadStruct syncSymbols[] = {
SYMBOL(CreateSyncKHR),
SYMBOL(DestroySyncKHR),
SYMBOL(ClientWaitSyncKHR),
SYMBOL(GetSyncAttribKHR),
END_OF_SYMBOLS
};
if (!fnLoadSymbols(syncSymbols)) {
NS_ERROR("EGL supports KHR_fence_sync without exposing its functions!");
MarkExtensionUnsupported(KHR_fence_sync);
}
}
if (IsExtensionSupported(KHR_image) || IsExtensionSupported(KHR_image_base)) {
const GLLibraryLoader::SymLoadStruct imageSymbols[] = {
SYMBOL(CreateImageKHR),
SYMBOL(DestroyImageKHR),
END_OF_SYMBOLS
};
if (!fnLoadSymbols(imageSymbols)) {
NS_ERROR("EGL supports KHR_image(_base) without exposing its functions!");
MarkExtensionUnsupported(KHR_image);
MarkExtensionUnsupported(KHR_image_base);
MarkExtensionUnsupported(KHR_image_pixmap);
}
} else {
MarkExtensionUnsupported(KHR_image_pixmap);
}
if (IsExtensionSupported(ANDROID_native_fence_sync)) {
const GLLibraryLoader::SymLoadStruct nativeFenceSymbols[] = {
SYMBOL(DupNativeFenceFDANDROID),
END_OF_SYMBOLS
};
if (!fnLoadSymbols(nativeFenceSymbols)) {
NS_ERROR("EGL supports ANDROID_native_fence_sync without exposing its functions!");
MarkExtensionUnsupported(ANDROID_native_fence_sync);
}
}
if (IsExtensionSupported(KHR_stream)) {
const GLLibraryLoader::SymLoadStruct streamSymbols[] = {
SYMBOL(CreateStreamKHR),
SYMBOL(DestroyStreamKHR),
SYMBOL(QueryStreamKHR),
END_OF_SYMBOLS
};
if (!fnLoadSymbols(streamSymbols)) {
NS_ERROR("EGL supports KHR_stream without exposing its functions!");
MarkExtensionUnsupported(KHR_stream);
}
}
if (IsExtensionSupported(KHR_stream_consumer_gltexture)) {
const GLLibraryLoader::SymLoadStruct streamConsumerSymbols[] = {
SYMBOL(StreamConsumerGLTextureExternalKHR),
SYMBOL(StreamConsumerAcquireKHR),
SYMBOL(StreamConsumerReleaseKHR),
END_OF_SYMBOLS
};
if (!fnLoadSymbols(streamConsumerSymbols)) {
NS_ERROR("EGL supports KHR_stream_consumer_gltexture without exposing its functions!");
MarkExtensionUnsupported(KHR_stream_consumer_gltexture);
}
}
if (IsExtensionSupported(EXT_device_query)) {
const GLLibraryLoader::SymLoadStruct queryDisplaySymbols[] = {
SYMBOL(QueryDisplayAttribEXT),
SYMBOL(QueryDeviceAttribEXT),
END_OF_SYMBOLS
};
if (!fnLoadSymbols(queryDisplaySymbols)) {
NS_ERROR("EGL supports EXT_device_query without exposing its functions!");
MarkExtensionUnsupported(EXT_device_query);
}
}
if (IsExtensionSupported(NV_stream_consumer_gltexture_yuv)) {
const GLLibraryLoader::SymLoadStruct nvStreamSymbols[] = {
SYMBOL(StreamConsumerGLTextureExternalAttribsNV),
END_OF_SYMBOLS
};
if (!fnLoadSymbols(nvStreamSymbols)) {
NS_ERROR("EGL supports NV_stream_consumer_gltexture_yuv without exposing its functions!");
MarkExtensionUnsupported(NV_stream_consumer_gltexture_yuv);
}
}
if (IsExtensionSupported(ANGLE_stream_producer_d3d_texture)) {
const GLLibraryLoader::SymLoadStruct nvStreamSymbols[] = {
SYMBOL(CreateStreamProducerD3DTextureANGLE),
SYMBOL(StreamPostD3DTextureANGLE),
END_OF_SYMBOLS
};
if (!fnLoadSymbols(nvStreamSymbols)) {
NS_ERROR("EGL supports ANGLE_stream_producer_d3d_texture without exposing its functions!");
MarkExtensionUnsupported(ANGLE_stream_producer_d3d_texture);
}
}
if (IsExtensionSupported(KHR_surfaceless_context)) {
const auto vendor = fQueryString(mEGLDisplay, LOCAL_EGL_VENDOR);
// Bug 1464610: Mali T720 (Amazon Fire 8 HD) claims to support this extension,
// but if you actually eglMakeCurrent() with EGL_NO_SURFACE, it fails to
// render anything when a real surface is provided later on. We only have the
// EGL vendor available here, so just avoid using this extension on all
// Mali devices.
if (strcmp((const char*)vendor, "ARM") == 0) {
MarkExtensionUnsupported(KHR_surfaceless_context);
}
}
mInitialized = true;
reporter.SetSuccessful();
return true;
}
#undef SYMBOL
#undef END_OF_SYMBOLS
void
GLLibraryEGL::Shutdown()
{
if (this != sEGLLibrary) {
return;
}
if (mEGLDisplay) {
fTerminate(mEGLDisplay);
mEGLDisplay = EGL_NO_DISPLAY;
}
mSymbols = {};
sEGLLibrary = nullptr;
}
EGLDisplay
GLLibraryEGL::CreateDisplay(bool forceAccel, const nsCOMPtr<nsIGfxInfo>& gfxInfo, nsACString* const out_failureId)
{
MOZ_ASSERT(!mInitialized);
EGLDisplay chosenDisplay = nullptr;
if (IsExtensionSupported(ANGLE_platform_angle_d3d)) {
nsCString accelAngleFailureId;
bool accelAngleSupport = IsAccelAngleSupported(gfxInfo, &accelAngleFailureId);
bool shouldTryAccel = forceAccel || accelAngleSupport;
bool shouldTryWARP = !forceAccel; // Only if ANGLE not supported or fails
// If WARP preferred, will override ANGLE support
if (gfxPrefs::WebGLANGLEForceWARP()) {
shouldTryWARP = true;
shouldTryAccel = false;
if (accelAngleFailureId.IsEmpty()) {
accelAngleFailureId = NS_LITERAL_CSTRING("FEATURE_FAILURE_FORCE_WARP");
}
}
// Hardware accelerated ANGLE path (supported or force accel)
if (shouldTryAccel) {
chosenDisplay = GetAndInitDisplayForAccelANGLE(*this, out_failureId);
}
// Report the acceleration status to telemetry
if (!chosenDisplay) {
if (accelAngleFailureId.IsEmpty()) {
Telemetry::Accumulate(Telemetry::CANVAS_WEBGL_ACCL_FAILURE_ID,
NS_LITERAL_CSTRING("FEATURE_FAILURE_ACCL_ANGLE_UNKNOWN"));
} else {
Telemetry::Accumulate(Telemetry::CANVAS_WEBGL_ACCL_FAILURE_ID,
accelAngleFailureId);
}
} else {
Telemetry::Accumulate(Telemetry::CANVAS_WEBGL_ACCL_FAILURE_ID,
NS_LITERAL_CSTRING("SUCCESS"));
}
// Fallback to a WARP display if ANGLE fails, or if WARP is forced
if (!chosenDisplay && shouldTryWARP) {
chosenDisplay = GetAndInitWARPDisplay(*this, EGL_DEFAULT_DISPLAY);
if (!chosenDisplay) {
if (out_failureId->IsEmpty()) {
*out_failureId = NS_LITERAL_CSTRING("FEATURE_FAILURE_WARP_FALLBACK");
}
NS_ERROR("Fallback WARP context failed to initialize.");
return nullptr;
}
mIsWARP = true;
}
} else {
void *nativeDisplay = EGL_DEFAULT_DISPLAY;
#ifdef MOZ_WAYLAND
// Some drivers doesn't support EGL_DEFAULT_DISPLAY
GdkDisplay *gdkDisplay = gdk_display_get_default();
if (GDK_IS_WAYLAND_DISPLAY(gdkDisplay)) {
static auto sGdkWaylandDisplayGetWlDisplay =
(wl_display *(*)(GdkDisplay *))
dlsym(RTLD_DEFAULT, "gdk_wayland_display_get_wl_display");
nativeDisplay = sGdkWaylandDisplayGetWlDisplay(gdkDisplay);
if (!nativeDisplay) {
NS_WARNING("Failed to get wl_display.");
return nullptr;
}
}
#endif
chosenDisplay = GetAndInitDisplay(*this, nativeDisplay);
}
if (!chosenDisplay) {
if (out_failureId->IsEmpty()) {
*out_failureId = NS_LITERAL_CSTRING("FEATURE_FAILURE_NO_DISPLAY");
}
NS_WARNING("Failed to initialize a display.");
return nullptr;
}
return chosenDisplay;
}
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;
}
static bool
ShouldTrace()
{
static bool ret = gfxEnv::GlDebugVerbose();
return ret;
}
void
BeforeEGLCall(const char* glFunction)
{
if (ShouldTrace()) {
printf_stderr("[egl] > %s\n", glFunction);
}
}
void
AfterEGLCall(const char* glFunction)
{
if (ShouldTrace()) {
printf_stderr("[egl] < %s\n", glFunction);
}
}
} /* namespace gl */
} /* namespace mozilla */
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