// Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #include "build/build_config.h" #if defined(USE_EGL) #include #endif #include "ui/gl/gl_bindings.h" #if defined(USE_GLX) #include "ui/gfx/x/connection.h" #include "ui/gfx/x/glx.h" #endif #if defined(USE_EGL) #include "ui/gl/gl_display.h" #include "ui/gl/gl_surface_egl.h" #endif namespace gl { #if defined(USE_EGL) void DisplayExtensionsEGL::UpdateConditionalExtensionSettings( EGLDisplay display) { // For the moment, only two extensions can be conditionally disabled // through GPU driver bug workarounds mechanism: // EGL_KHR_fence_sync // EGL_KHR_wait_sync // In theory it's OK to allow disabling other EGL extensions, as far as they // are not the ones used in GLSurfaceEGL::InitializeOneOff(). std::string extensions(GetPlatformExtensions(display)); extensions += " "; b_EGL_KHR_fence_sync = extensions.find("EGL_KHR_fence_sync ") != std::string::npos; b_EGL_KHR_wait_sync = extensions.find("EGL_KHR_wait_sync ") != std::string::npos; } // static std::string DisplayExtensionsEGL::GetPlatformExtensions(EGLDisplay display) { if (display == EGL_NO_DISPLAY) return ""; const char* str = eglQueryString(display, EGL_EXTENSIONS); return str ? std::string(str) : ""; } // static std::string ClientExtensionsEGL::GetClientExtensions() { const char* str = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS); return str ? std::string(str) : ""; } #endif #if defined(USE_GLX) std::string DriverGLX::GetPlatformExtensions() { auto* connection = x11::Connection::Get(); const int screen = connection ? connection->DefaultScreenId() : 0; const char* str = glXQueryExtensionsString(connection->GetXlibDisplay(), screen); return str ? std::string(str) : ""; } #endif } // namespace gl