HardwareAccelerationManager.cpp [plain text]
#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
using namespace WebCore;
namespace WebKit {
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());
std::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;
}
}