mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-02 07:05:24 +00:00
390 lines
12 KiB
C++
390 lines
12 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "GLLibraryEGL.h"
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#include "gfxCrashReporterUtils.h"
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#include "mozilla/Preferences.h"
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#include "nsDirectoryServiceDefs.h"
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#include "nsDirectoryServiceUtils.h"
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#include "nsPrintfCString.h"
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#include "prenv.h"
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#include "GLContext.h"
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namespace mozilla {
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namespace gl {
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// should match the order of EGLExtensions, and be null-terminated.
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static const char *sExtensionNames[] = {
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"EGL_KHR_image_base",
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"EGL_KHR_image_pixmap",
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"EGL_KHR_gl_texture_2D_image",
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"EGL_KHR_lock_surface",
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"EGL_ANGLE_surface_d3d_texture_2d_share_handle",
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"EGL_EXT_create_context_robustness",
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"EGL_KHR_image",
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"EGL_KHR_fence_sync",
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nullptr
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};
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#if defined(ANDROID)
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static PRLibrary* LoadApitraceLibrary()
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{
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static PRLibrary* sApitraceLibrary = NULL;
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if (sApitraceLibrary)
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return sApitraceLibrary;
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nsCString logFile = Preferences::GetCString("gfx.apitrace.logfile");
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if (logFile.IsEmpty()) {
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logFile = "firefox.trace";
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}
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// The firefox process can't write to /data/local, but it can write
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// to $GRE_HOME/
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nsAutoCString logPath;
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logPath.AppendPrintf("%s/%s", getenv("GRE_HOME"), logFile.get());
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// apitrace uses the TRACE_FILE environment variable to determine where
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// to log trace output to
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printf_stderr("Logging GL tracing output to %s", logPath.get());
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setenv("TRACE_FILE", logPath.get(), false);
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printf_stderr("Attempting load of %s\n", APITRACE_LIB);
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sApitraceLibrary = PR_LoadLibrary(APITRACE_LIB);
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return sApitraceLibrary;
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}
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#endif // ANDROID
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#ifdef XP_WIN
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// see the comment in GLLibraryEGL::EnsureInitialized() for the rationale here.
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static PRLibrary*
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LoadLibraryForEGLOnWindows(const nsAString& filename)
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{
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nsCOMPtr<nsIFile> file;
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nsresult rv = NS_GetSpecialDirectory(NS_GRE_DIR, getter_AddRefs(file));
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if (NS_FAILED(rv))
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return nullptr;
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file->Append(filename);
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PRLibrary* lib = nullptr;
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rv = file->Load(&lib);
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if (NS_FAILED(rv)) {
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nsPrintfCString msg("Failed to load %s - Expect EGL initialization to fail",
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NS_LossyConvertUTF16toASCII(filename).get());
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NS_WARNING(msg.get());
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}
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return lib;
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}
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#endif // XP_WIN
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bool
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GLLibraryEGL::EnsureInitialized()
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{
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if (mInitialized) {
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return true;
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}
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mozilla::ScopedGfxFeatureReporter reporter("EGL");
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#ifdef XP_WIN
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#ifdef MOZ_WEBGL
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if (!mEGLLibrary) {
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// On Windows, the GLESv2, EGL and DXSDK libraries are shipped with libxul and
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// we should look for them there. We have to load the libs in this
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// order, because libEGL.dll depends on libGLESv2.dll which depends on the DXSDK
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// libraries. This matters especially for WebRT apps which are in a different directory.
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// See bug 760323 and bug 749459
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#ifndef MOZ_D3DCOMPILER_DLL
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#error MOZ_D3DCOMPILER_DLL should have been defined by the Makefile
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#endif
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LoadLibraryForEGLOnWindows(NS_LITERAL_STRING(NS_STRINGIFY(MOZ_D3DCOMPILER_DLL)));
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// intentionally leak the D3DCOMPILER_DLL library
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LoadLibraryForEGLOnWindows(NS_LITERAL_STRING("libGLESv2.dll"));
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// intentionally leak the libGLESv2.dll library
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mEGLLibrary = LoadLibraryForEGLOnWindows(NS_LITERAL_STRING("libEGL.dll"));
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if (!mEGLLibrary)
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return false;
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}
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#endif // MOZ_WEBGL
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#else // !Windows
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// On non-Windows (Android) we use system copies of libEGL. We look for
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// the APITrace lib, libEGL.so, and libEGL.so.1 in that order.
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#if defined(ANDROID)
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if (!mEGLLibrary)
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mEGLLibrary = LoadApitraceLibrary();
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#endif
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if (!mEGLLibrary) {
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printf_stderr("Attempting load of libEGL.so\n");
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mEGLLibrary = PR_LoadLibrary("libEGL.so");
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}
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#if defined(XP_UNIX)
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if (!mEGLLibrary) {
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mEGLLibrary = PR_LoadLibrary("libEGL.so.1");
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}
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#endif
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if (!mEGLLibrary) {
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NS_WARNING("Couldn't load EGL LIB.");
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return false;
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}
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#endif // !Windows
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#define SYMBOL(name) \
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{ (PRFuncPtr*) &mSymbols.f##name, { "egl" #name, NULL } }
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GLLibraryLoader::SymLoadStruct earlySymbols[] = {
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SYMBOL(GetDisplay),
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SYMBOL(GetCurrentSurface),
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SYMBOL(GetCurrentContext),
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SYMBOL(MakeCurrent),
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SYMBOL(DestroyContext),
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SYMBOL(CreateContext),
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SYMBOL(DestroySurface),
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SYMBOL(CreateWindowSurface),
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SYMBOL(CreatePbufferSurface),
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SYMBOL(CreatePixmapSurface),
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SYMBOL(BindAPI),
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SYMBOL(Initialize),
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SYMBOL(ChooseConfig),
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SYMBOL(GetError),
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SYMBOL(GetConfigs),
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SYMBOL(GetConfigAttrib),
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SYMBOL(WaitNative),
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SYMBOL(GetProcAddress),
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SYMBOL(SwapBuffers),
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SYMBOL(CopyBuffers),
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SYMBOL(QueryString),
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SYMBOL(QueryContext),
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SYMBOL(BindTexImage),
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SYMBOL(ReleaseTexImage),
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SYMBOL(QuerySurface),
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{ NULL, { NULL } }
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};
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if (!GLLibraryLoader::LoadSymbols(mEGLLibrary, &earlySymbols[0])) {
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NS_WARNING("Couldn't find required entry points in EGL library (early init)");
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return false;
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}
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mEGLDisplay = fGetDisplay(EGL_DEFAULT_DISPLAY);
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if (!fInitialize(mEGLDisplay, NULL, NULL))
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return false;
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const char *vendor = (const char*) fQueryString(mEGLDisplay, LOCAL_EGL_VENDOR);
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if (vendor && (strstr(vendor, "TransGaming") != 0 || strstr(vendor, "Google Inc.") != 0)) {
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mIsANGLE = true;
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}
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InitExtensions();
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GLLibraryLoader::PlatformLookupFunction lookupFunction =
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(GLLibraryLoader::PlatformLookupFunction)mSymbols.fGetProcAddress;
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if (IsExtensionSupported(KHR_lock_surface)) {
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GLLibraryLoader::SymLoadStruct lockSymbols[] = {
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{ (PRFuncPtr*) &mSymbols.fLockSurface, { "eglLockSurfaceKHR", nullptr } },
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{ (PRFuncPtr*) &mSymbols.fUnlockSurface, { "eglUnlockSurfaceKHR", nullptr } },
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{ nullptr, { nullptr } }
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};
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bool success = GLLibraryLoader::LoadSymbols(mEGLLibrary,
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&lockSymbols[0],
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lookupFunction);
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if (!success) {
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NS_ERROR("EGL supports KHR_lock_surface without exposing its functions!");
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MarkExtensionUnsupported(KHR_lock_surface);
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mSymbols.fLockSurface = nullptr;
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mSymbols.fUnlockSurface = nullptr;
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}
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}
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if (IsExtensionSupported(ANGLE_surface_d3d_texture_2d_share_handle)) {
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GLLibraryLoader::SymLoadStruct d3dSymbols[] = {
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{ (PRFuncPtr*) &mSymbols.fQuerySurfacePointerANGLE, { "eglQuerySurfacePointerANGLE", nullptr } },
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{ nullptr, { nullptr } }
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};
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bool success = GLLibraryLoader::LoadSymbols(mEGLLibrary,
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&d3dSymbols[0],
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lookupFunction);
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if (!success) {
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NS_ERROR("EGL supports ANGLE_surface_d3d_texture_2d_share_handle without exposing its functions!");
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MarkExtensionUnsupported(ANGLE_surface_d3d_texture_2d_share_handle);
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mSymbols.fQuerySurfacePointerANGLE = nullptr;
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}
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}
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if (IsExtensionSupported(KHR_fence_sync)) {
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GLLibraryLoader::SymLoadStruct syncSymbols[] = {
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{ (PRFuncPtr*) &mSymbols.fCreateSync, { "eglCreateSyncKHR", nullptr } },
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{ (PRFuncPtr*) &mSymbols.fDestroySync, { "eglDestroySyncKHR", nullptr } },
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{ (PRFuncPtr*) &mSymbols.fClientWaitSync, { "eglClientWaitSyncKHR", nullptr } },
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{ (PRFuncPtr*) &mSymbols.fGetSyncAttrib, { "eglGetSyncAttribKHR", nullptr } },
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{ nullptr, { nullptr } }
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};
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bool success = GLLibraryLoader::LoadSymbols(mEGLLibrary,
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&syncSymbols[0],
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lookupFunction);
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if (!success) {
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NS_ERROR("EGL supports KHR_fence_sync without exposing its functions!");
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MarkExtensionUnsupported(KHR_fence_sync);
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mSymbols.fCreateSync = nullptr;
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mSymbols.fDestroySync = nullptr;
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mSymbols.fClientWaitSync = nullptr;
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mSymbols.fGetSyncAttrib = nullptr;
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}
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}
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if (IsExtensionSupported(KHR_image) || IsExtensionSupported(KHR_image_base)) {
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GLLibraryLoader::SymLoadStruct imageSymbols[] = {
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{ (PRFuncPtr*) &mSymbols.fCreateImage, { "eglCreateImageKHR", nullptr } },
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{ (PRFuncPtr*) &mSymbols.fDestroyImage, { "eglDestroyImageKHR", nullptr } },
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{ nullptr, { nullptr } }
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};
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bool success = GLLibraryLoader::LoadSymbols(mEGLLibrary,
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&imageSymbols[0],
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lookupFunction);
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if (!success) {
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NS_ERROR("EGL supports KHR_image(_base) without exposing its functions!");
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MarkExtensionUnsupported(KHR_image);
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MarkExtensionUnsupported(KHR_image_base);
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MarkExtensionUnsupported(KHR_image_pixmap);
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mSymbols.fCreateImage = nullptr;
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mSymbols.fDestroyImage = nullptr;
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}
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} else {
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MarkExtensionUnsupported(KHR_image_pixmap);
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}
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mInitialized = true;
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reporter.SetSuccessful();
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return true;
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}
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void
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GLLibraryEGL::InitExtensions()
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{
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const char *extensions = (const char*)fQueryString(mEGLDisplay, LOCAL_EGL_EXTENSIONS);
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if (!extensions) {
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NS_WARNING("Failed to load EGL extension list!");
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return;
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}
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bool debugMode = false;
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#ifdef DEBUG
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if (PR_GetEnv("MOZ_GL_DEBUG"))
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debugMode = true;
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static bool firstRun = true;
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#else
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// Non-DEBUG, so never spew.
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const bool firstRun = false;
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#endif
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mAvailableExtensions.Load(extensions, sExtensionNames, firstRun && debugMode);
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#ifdef DEBUG
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firstRun = false;
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#endif
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}
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void
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GLLibraryEGL::DumpEGLConfig(EGLConfig cfg)
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{
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int attrval;
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int err;
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#define ATTR(_x) do { \
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fGetConfigAttrib(mEGLDisplay, cfg, LOCAL_EGL_##_x, &attrval); \
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if ((err = fGetError()) != 0x3000) { \
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printf_stderr(" %s: ERROR (0x%04x)\n", #_x, err); \
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} else { \
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printf_stderr(" %s: %d (0x%04x)\n", #_x, attrval, attrval); \
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} \
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} while(0)
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printf_stderr("EGL Config: %d [%p]\n", (int)(intptr_t)cfg, cfg);
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ATTR(BUFFER_SIZE);
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ATTR(ALPHA_SIZE);
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ATTR(BLUE_SIZE);
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ATTR(GREEN_SIZE);
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ATTR(RED_SIZE);
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ATTR(DEPTH_SIZE);
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ATTR(STENCIL_SIZE);
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ATTR(CONFIG_CAVEAT);
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ATTR(CONFIG_ID);
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ATTR(LEVEL);
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ATTR(MAX_PBUFFER_HEIGHT);
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ATTR(MAX_PBUFFER_PIXELS);
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ATTR(MAX_PBUFFER_WIDTH);
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ATTR(NATIVE_RENDERABLE);
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ATTR(NATIVE_VISUAL_ID);
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ATTR(NATIVE_VISUAL_TYPE);
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ATTR(PRESERVED_RESOURCES);
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ATTR(SAMPLES);
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ATTR(SAMPLE_BUFFERS);
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ATTR(SURFACE_TYPE);
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ATTR(TRANSPARENT_TYPE);
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ATTR(TRANSPARENT_RED_VALUE);
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ATTR(TRANSPARENT_GREEN_VALUE);
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ATTR(TRANSPARENT_BLUE_VALUE);
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ATTR(BIND_TO_TEXTURE_RGB);
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ATTR(BIND_TO_TEXTURE_RGBA);
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ATTR(MIN_SWAP_INTERVAL);
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ATTR(MAX_SWAP_INTERVAL);
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ATTR(LUMINANCE_SIZE);
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ATTR(ALPHA_MASK_SIZE);
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ATTR(COLOR_BUFFER_TYPE);
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ATTR(RENDERABLE_TYPE);
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ATTR(CONFORMANT);
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#undef ATTR
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}
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void
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GLLibraryEGL::DumpEGLConfigs()
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{
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int nc = 0;
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fGetConfigs(mEGLDisplay, NULL, 0, &nc);
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EGLConfig *ec = new EGLConfig[nc];
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fGetConfigs(mEGLDisplay, ec, nc, &nc);
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for (int i = 0; i < nc; ++i) {
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printf_stderr ("========= EGL Config %d ========\n", i);
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DumpEGLConfig(ec[i]);
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}
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delete [] ec;
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}
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} /* namespace gl */
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} /* namespace mozilla */
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