PlatformDisplayX11.cpp [plain text]
#include "config.h"
#include "PlatformDisplayX11.h"
#include "GLContext.h"
#if PLATFORM(X11)
#include <X11/Xlib.h>
#include <X11/extensions/Xcomposite.h>
#if PLATFORM(GTK)
#include <X11/extensions/Xdamage.h>
#endif
#if USE(EGL)
#include <EGL/egl.h>
#include <EGL/eglext.h>
#endif
namespace WebCore {
std::unique_ptr<PlatformDisplay> PlatformDisplayX11::create()
{
Display* display = XOpenDisplay(getenv("DISPLAY"));
if (!display)
return nullptr;
return std::unique_ptr<PlatformDisplayX11>(new PlatformDisplayX11(display, NativeDisplayOwned::Yes));
}
std::unique_ptr<PlatformDisplay> PlatformDisplayX11::create(Display* display)
{
return std::unique_ptr<PlatformDisplayX11>(new PlatformDisplayX11(display, NativeDisplayOwned::No));
}
PlatformDisplayX11::PlatformDisplayX11(Display* display, NativeDisplayOwned displayOwned)
: PlatformDisplay(displayOwned)
, m_display(display)
{
}
PlatformDisplayX11::~PlatformDisplayX11()
{
#if USE(EGL) || USE(GLX)
m_sharingGLContext = nullptr;
#endif
if (m_nativeDisplayOwned == NativeDisplayOwned::Yes)
XCloseDisplay(m_display);
}
#if USE(EGL)
void PlatformDisplayX11::initializeEGLDisplay()
{
#if defined(EGL_KHR_platform_x11)
const char* extensions = eglQueryString(nullptr, EGL_EXTENSIONS);
if (GLContext::isExtensionSupported(extensions, "EGL_KHR_platform_base")) {
if (auto* getPlatformDisplay = reinterpret_cast<PFNEGLGETPLATFORMDISPLAYEXTPROC>(eglGetProcAddress("eglGetPlatformDisplay")))
m_eglDisplay = getPlatformDisplay(EGL_PLATFORM_X11_KHR, m_display, nullptr);
} else if (GLContext::isExtensionSupported(extensions, "EGL_EXT_platform_base")) {
if (auto* getPlatformDisplay = reinterpret_cast<PFNEGLGETPLATFORMDISPLAYEXTPROC>(eglGetProcAddress("eglGetPlatformDisplayEXT")))
m_eglDisplay = getPlatformDisplay(EGL_PLATFORM_X11_KHR, m_display, nullptr);
} else
#endif
m_eglDisplay = eglGetDisplay(m_display);
PlatformDisplay::initializeEGLDisplay();
}
#endif // USE(EGL)
bool PlatformDisplayX11::supportsXComposite() const
{
if (!m_supportsXComposite) {
if (m_display) {
int eventBase, errorBase;
m_supportsXComposite = XCompositeQueryExtension(m_display, &eventBase, &errorBase);
} else
m_supportsXComposite = false;
}
return m_supportsXComposite.value();
}
bool PlatformDisplayX11::supportsXDamage(std::optional<int>& damageEventBase, std::optional<int>& damageErrorBase) const
{
if (!m_supportsXDamage) {
m_supportsXDamage = false;
#if PLATFORM(GTK)
if (m_display) {
int eventBase, errorBase;
m_supportsXDamage = XDamageQueryExtension(m_display, &eventBase, &errorBase);
if (m_supportsXDamage.value()) {
m_damageEventBase = eventBase;
m_damageErrorBase = errorBase;
}
}
#endif
}
damageEventBase = m_damageEventBase;
damageErrorBase = m_damageErrorBase;
return m_supportsXDamage.value();
}
}
#endif // PLATFORM(X11)