/* * Copyright (C) 2017 Igalia S.L. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include "HardwareAccelerationManager.h" #include "AcceleratedBackingStore.h" namespace WebKit { using namespace WebCore; HardwareAccelerationManager& HardwareAccelerationManager::singleton() { static NeverDestroyed<HardwareAccelerationManager> manager; return manager; } HardwareAccelerationManager::HardwareAccelerationManager() : m_canUseHardwareAcceleration(true) , m_forceHardwareAcceleration(false) { #if !ENABLE(GRAPHICS_CONTEXT_GL) m_canUseHardwareAcceleration = false; return; #endif #if USE(GTK4) RELEASE_ASSERT(AcceleratedBackingStore::checkRequirements()); m_forceHardwareAcceleration = true; #endif const char* disableCompositing = getenv("WEBKIT_DISABLE_COMPOSITING_MODE"); if (disableCompositing && strcmp(disableCompositing, "0")) { m_canUseHardwareAcceleration = false; return; } if (!AcceleratedBackingStore::checkRequirements()) { m_canUseHardwareAcceleration = false; return; } const char* forceCompositing = getenv("WEBKIT_FORCE_COMPOSITING_MODE"); if (forceCompositing && strcmp(forceCompositing, "0")) m_forceHardwareAcceleration = true; } } // namespace WebKit