| /* |
| * 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 "WaylandCompositor.h" |
| #include <WebCore/NotImplemented.h> |
| #include <WebCore/PlatformDisplay.h> |
| |
| #if USE(REDIRECTED_XCOMPOSITE_WINDOW) |
| #include <WebCore/PlatformDisplayX11.h> |
| #endif |
| |
| namespace WebKit { |
| using namespace WebCore; |
| |
| HardwareAccelerationManager& HardwareAccelerationManager::singleton() |
| { |
| static NeverDestroyed<HardwareAccelerationManager> manager; |
| return manager; |
| } |
| |
| HardwareAccelerationManager::HardwareAccelerationManager() |
| : m_canUseHardwareAcceleration(true) |
| , m_forceHardwareAcceleration(false) |
| { |
| #if !ENABLE(OPENGL) |
| m_canUseHardwareAcceleration = false; |
| return; |
| #endif |
| |
| const char* disableCompositing = getenv("WEBKIT_DISABLE_COMPOSITING_MODE"); |
| if (disableCompositing && strcmp(disableCompositing, "0")) { |
| m_canUseHardwareAcceleration = false; |
| return; |
| } |
| |
| #if USE(REDIRECTED_XCOMPOSITE_WINDOW) |
| if (PlatformDisplay::sharedDisplay().type() == PlatformDisplay::Type::X11) { |
| auto& display = downcast<PlatformDisplayX11>(PlatformDisplay::sharedDisplay()); |
| Optional<int> damageBase, errorBase; |
| if (!display.supportsXComposite() || !display.supportsXDamage(damageBase, errorBase)) { |
| m_canUseHardwareAcceleration = false; |
| return; |
| } |
| } |
| #endif |
| |
| #if PLATFORM(WAYLAND) && USE(EGL) |
| if (PlatformDisplay::sharedDisplay().type() == PlatformDisplay::Type::Wayland) { |
| if (!WaylandCompositor::singleton().isRunning()) { |
| m_canUseHardwareAcceleration = false; |
| return; |
| } |
| } |
| #endif |
| |
| const char* forceCompositing = getenv("WEBKIT_FORCE_COMPOSITING_MODE"); |
| if (forceCompositing && strcmp(forceCompositing, "0")) |
| m_forceHardwareAcceleration = true; |
| } |
| |
| } // namespace WebKit |