| /* |
| * Copyright (C) 2015 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 AND ITS CONTRIBUTORS "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 OR ITS 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 "PlatformDisplayX11.h" |
| |
| #include "GLContext.h" |
| #include "XErrorTrapper.h" |
| |
| #if PLATFORM(X11) |
| #include <X11/Xatom.h> |
| #include <X11/Xlib.h> |
| #include <X11/extensions/Xcomposite.h> |
| #if PLATFORM(GTK) |
| #include <X11/Xutil.h> |
| #include <X11/extensions/Xdamage.h> |
| #endif |
| |
| #if USE(EGL) |
| #include <EGL/egl.h> |
| #include <EGL/eglext.h> |
| #endif |
| |
| #if USE(GLX) |
| #include <GL/glx.h> |
| #endif |
| |
| #if USE(LCMS) |
| #include <lcms2.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) |
| // Clear the sharing context before releasing the display. |
| 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(); |
| } |
| |
| bool PlatformDisplayX11::supportsGLX(std::optional<int>& glxErrorBase) const |
| { |
| #if USE(GLX) |
| if (!m_supportsGLX) { |
| m_supportsGLX = false; |
| if (m_display) { |
| int eventBase, errorBase; |
| m_supportsGLX = glXQueryExtension(m_display, &errorBase, &eventBase); |
| if (m_supportsGLX.value()) |
| m_glxErrorBase = errorBase; |
| } |
| } |
| |
| glxErrorBase = m_glxErrorBase; |
| return m_supportsGLX.value(); |
| #else |
| UNUSED_PARAM(glxErrorBase); |
| return false; |
| #endif |
| } |
| |
| void* PlatformDisplayX11::visual() const |
| { |
| if (m_visual) |
| return m_visual; |
| |
| XVisualInfo visualTemplate; |
| visualTemplate.screen = DefaultScreen(m_display); |
| |
| int visualCount = 0; |
| XVisualInfo* visualInfo = XGetVisualInfo(m_display, VisualScreenMask, &visualTemplate, &visualCount); |
| for (int i = 0; i < visualCount; ++i) { |
| auto& info = visualInfo[i]; |
| if (info.depth == 32 && info.red_mask == 0xff0000 && info.green_mask == 0x00ff00 && info.blue_mask == 0x0000ff) { |
| m_visual = info.visual; |
| break; |
| } |
| } |
| XFree(visualInfo); |
| |
| if (!m_visual) |
| m_visual = DefaultVisual(m_display, DefaultScreen(m_display)); |
| |
| return m_visual; |
| } |
| |
| #if USE(LCMS) |
| cmsHPROFILE PlatformDisplayX11::colorProfile() const |
| { |
| if (m_iccProfile) |
| return m_iccProfile; |
| |
| Atom iccAtom = XInternAtom(m_display, "_ICC_PROFILE", False); |
| Atom type; |
| int format; |
| unsigned long itemCount, bytesAfter; |
| unsigned char* data = nullptr; |
| auto result = XGetWindowProperty(m_display, RootWindowOfScreen(DefaultScreenOfDisplay(m_display)), iccAtom, 0L, ~0L, False, XA_CARDINAL, &type, &format, &itemCount, &bytesAfter, &data); |
| if (result == Success && type == XA_CARDINAL && itemCount > 0) { |
| unsigned long dataSize; |
| switch (format) { |
| case 8: |
| dataSize = itemCount; |
| break; |
| case 16: |
| dataSize = sizeof(short) * itemCount; |
| break; |
| case 32: |
| dataSize = sizeof(long) * itemCount; |
| break; |
| default: |
| dataSize = 0; |
| break; |
| } |
| |
| if (dataSize) |
| m_iccProfile = cmsOpenProfileFromMem(data, dataSize); |
| } |
| |
| if (data) |
| XFree(data); |
| |
| return m_iccProfile ? m_iccProfile : PlatformDisplay::colorProfile(); |
| } |
| #endif |
| |
| #if USE(ATSPI) |
| String PlatformDisplayX11::plartformAccessibilityBusAddress() const |
| { |
| Atom atspiBusAtom = XInternAtom(m_display, "AT_SPI_BUS", False); |
| Atom type; |
| int format; |
| unsigned long itemCount, bytesAfter; |
| unsigned char* data = nullptr; |
| XErrorTrapper trapper(m_display, XErrorTrapper::Policy::Ignore); |
| XGetWindowProperty(m_display, RootWindowOfScreen(DefaultScreenOfDisplay(m_display)), atspiBusAtom, 0L, 8192, False, XA_STRING, &type, &format, &itemCount, &bytesAfter, &data); |
| |
| String atspiBusAddress = String::fromUTF8(reinterpret_cast<char*>(data)); |
| if (data) |
| XFree(data); |
| |
| return atspiBusAddress; |
| } |
| #endif |
| |
| } // namespace WebCore |
| |
| #endif // PLATFORM(X11) |
| |