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| 1 /* | |
| 2 * Copyright (C) 2013 Intel Corporation. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' | |
| 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | |
| 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS | |
| 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | |
| 23 * THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #include "config.h" | |
| 27 #include "X11Helper.h" | |
| 28 | |
| 29 namespace WebCore { | |
| 30 | |
| 31 // Used for handling XError. | |
| 32 static bool validOperation = true; | |
| 33 static int handleXPixmapCreationError(Display*, XErrorEvent* event) | |
| 34 { | |
| 35 if (event->error_code == BadMatch || event->error_code == BadWindow || event
->error_code == BadAlloc) { | |
| 36 validOperation = false; | |
| 37 | |
| 38 switch (event->error_code) { | |
| 39 case BadMatch: | |
| 40 LOG_ERROR("BadMatch."); | |
| 41 break; | |
| 42 case BadWindow: | |
| 43 LOG_ERROR("BadWindow."); | |
| 44 break; | |
| 45 case BadAlloc: | |
| 46 LOG_ERROR("BadAlloc."); | |
| 47 break; | |
| 48 default: | |
| 49 break; | |
| 50 } | |
| 51 } | |
| 52 | |
| 53 return 0; | |
| 54 } | |
| 55 | |
| 56 struct DisplayConnection { | |
| 57 DisplayConnection() | |
| 58 { | |
| 59 m_display = XOpenDisplay(0); | |
| 60 | |
| 61 if (!m_display) | |
| 62 LOG_ERROR("Failed to make connection with X"); | |
| 63 } | |
| 64 | |
| 65 ~DisplayConnection() | |
| 66 { | |
| 67 XCloseDisplay(m_display); | |
| 68 } | |
| 69 | |
| 70 Display* display() { return m_display; } | |
| 71 private: | |
| 72 Display* m_display; | |
| 73 }; | |
| 74 | |
| 75 struct OffScreenRootWindow { | |
| 76 | |
| 77 OffScreenRootWindow() | |
| 78 { | |
| 79 m_window = 0; | |
| 80 Display* dpy = X11Helper::nativeDisplay(); | |
| 81 if (!dpy) | |
| 82 return; | |
| 83 | |
| 84 XSetWindowAttributes attributes; | |
| 85 attributes.override_redirect = true; | |
| 86 m_window = XCreateSimpleWindow(dpy, XDefaultRootWindow(dpy), -1, -1, 1,
1, 0, BlackPixel(dpy, 0), WhitePixel(dpy, 0)); | |
| 87 // From http://tronche.com/gui/x/xlib/window/attributes/ | |
| 88 XChangeWindowAttributes(dpy, m_window, CWOverrideRedirect, &attributes); | |
| 89 XMapWindow(dpy, m_window); | |
| 90 | |
| 91 if (!m_window) | |
| 92 LOG_ERROR("Failed to create offscreen root window."); | |
| 93 } | |
| 94 | |
| 95 ~OffScreenRootWindow() | |
| 96 { | |
| 97 if (!X11Helper::nativeDisplay()) | |
| 98 return; | |
| 99 | |
| 100 if (m_window) { | |
| 101 XUnmapWindow(X11Helper::nativeDisplay(), m_window); | |
| 102 XDestroyWindow(X11Helper::nativeDisplay(), m_window); | |
| 103 m_window = 0; | |
| 104 } | |
| 105 } | |
| 106 | |
| 107 Window rootWindow() | |
| 108 { | |
| 109 return m_window; | |
| 110 } | |
| 111 | |
| 112 private: | |
| 113 Window m_window; | |
| 114 }; | |
| 115 | |
| 116 ScopedXPixmapCreationErrorHandler::ScopedXPixmapCreationErrorHandler() | |
| 117 { | |
| 118 // XSync must be called to ensure that current errors are handled by the ori
ginal handler. | |
| 119 XSync(X11Helper::nativeDisplay(), false); | |
| 120 m_previousErrorHandler = XSetErrorHandler(handleXPixmapCreationError); | |
| 121 } | |
| 122 | |
| 123 ScopedXPixmapCreationErrorHandler::~ScopedXPixmapCreationErrorHandler() | |
| 124 { | |
| 125 // Restore the original handler. | |
| 126 XSetErrorHandler(m_previousErrorHandler); | |
| 127 } | |
| 128 | |
| 129 bool ScopedXPixmapCreationErrorHandler::isValidOperation() const | |
| 130 { | |
| 131 validOperation = true; | |
| 132 // XSync is needed to catch possible errors as they are generated asynchrono
usly. | |
| 133 XSync(X11Helper::nativeDisplay(), false); | |
| 134 return validOperation; | |
| 135 } | |
| 136 | |
| 137 void X11Helper::resizeWindow(const IntRect& newRect, const uint32_t windowId) | |
| 138 { | |
| 139 XResizeWindow(nativeDisplay(), windowId, newRect.width(), newRect.height()); | |
| 140 XFlush(nativeDisplay()); | |
| 141 } | |
| 142 | |
| 143 void X11Helper::createPixmap(Pixmap* handleId, const XVisualInfo& visualInfo, co
nst IntSize& size) | |
| 144 { | |
| 145 Display* display = nativeDisplay(); | |
| 146 if (!display) | |
| 147 return; | |
| 148 | |
| 149 if (!visualInfo.visual) { | |
| 150 LOG_ERROR("Failed to find valid XVisual."); | |
| 151 return; | |
| 152 } | |
| 153 | |
| 154 Window xWindow = offscreenRootWindow(); | |
| 155 if (!xWindow) { | |
| 156 LOG_ERROR("Failed to create offscreen root window."); | |
| 157 return; | |
| 158 } | |
| 159 | |
| 160 Pixmap tempHandleId = XCreatePixmap(display, xWindow, size.width(), size.hei
ght(), visualInfo.depth); | |
| 161 | |
| 162 if (!tempHandleId) { | |
| 163 LOG_ERROR("Failed to create offscreen pixmap."); | |
| 164 return; | |
| 165 } | |
| 166 | |
| 167 *handleId = tempHandleId; | |
| 168 XSync(X11Helper::nativeDisplay(), false); | |
| 169 } | |
| 170 | |
| 171 void X11Helper::destroyPixmap(const uint32_t pixmapId) | |
| 172 { | |
| 173 if (!pixmapId) | |
| 174 return; | |
| 175 | |
| 176 Display* display = nativeDisplay(); | |
| 177 if (!display) | |
| 178 return; | |
| 179 | |
| 180 XFreePixmap(display, pixmapId); | |
| 181 XSync(X11Helper::nativeDisplay(), false); | |
| 182 } | |
| 183 | |
| 184 void X11Helper::createOffScreenWindow(uint32_t* handleId, const XVisualInfo& vis
Info, const IntSize& size) | |
| 185 { | |
| 186 #if USE(GRAPHICS_SURFACE) && USE(GLX) | |
| 187 Display* display = nativeDisplay(); | |
| 188 if (!display) | |
| 189 return; | |
| 190 | |
| 191 if (!visInfo.visual) { | |
| 192 LOG_ERROR("Failed to find valid XVisual."); | |
| 193 return; | |
| 194 } | |
| 195 | |
| 196 Window xWindow = offscreenRootWindow(); | |
| 197 if (!xWindow) | |
| 198 return; | |
| 199 | |
| 200 Colormap cmap = XCreateColormap(display, xWindow, visInfo.visual, AllocNone)
; | |
| 201 XSetWindowAttributes attribute; | |
| 202 attribute.background_pixel = WhitePixel(display, 0); | |
| 203 attribute.border_pixel = BlackPixel(display, 0); | |
| 204 attribute.colormap = cmap; | |
| 205 attribute.event_mask = ResizeRedirectMask; | |
| 206 uint32_t tempHandleId = XCreateWindow(display, xWindow, 0, 0, size.width(),
size.height(), 0, visInfo.depth, InputOutput, visInfo.visual, CWBackPixel | CWBo
rderPixel | CWColormap, &attribute); | |
| 207 | |
| 208 if (!tempHandleId) { | |
| 209 LOG_ERROR("Failed to create offscreen window."); | |
| 210 return; | |
| 211 } | |
| 212 | |
| 213 XSetWindowBackgroundPixmap(display, tempHandleId, 0); | |
| 214 XCompositeRedirectWindow(display, tempHandleId, CompositeRedirectManual); | |
| 215 XMapWindow(display, tempHandleId); | |
| 216 *handleId = tempHandleId; | |
| 217 #else | |
| 218 UNUSED_PARAM(handleId); | |
| 219 UNUSED_PARAM(visInfo); | |
| 220 UNUSED_PARAM(size); | |
| 221 #endif | |
| 222 } | |
| 223 | |
| 224 #if USE(EGL) | |
| 225 void X11Helper::createOffScreenWindow(uint32_t* handleId, const EGLint id, bool
supportsAlpha, const IntSize& size) | |
| 226 { | |
| 227 #if USE(GRAPHICS_SURFACE) | |
| 228 VisualID visualId = static_cast<VisualID>(id); | |
| 229 | |
| 230 if (!visualId) | |
| 231 return; | |
| 232 | |
| 233 // EGL has suggested a visual id, so get the rest of the visual info for tha
t id. | |
| 234 XVisualInfo visualInfoTemplate; | |
| 235 memset(&visualInfoTemplate, 0, sizeof(XVisualInfo)); | |
| 236 visualInfoTemplate.visualid = visualId; | |
| 237 int matchingCount = 0; | |
| 238 OwnPtrX11<XVisualInfo> matchingVisuals(XGetVisualInfo(nativeDisplay(), Visua
lIDMask, &visualInfoTemplate, &matchingCount)); | |
| 239 XVisualInfo* foundVisual = 0; | |
| 240 | |
| 241 if (matchingVisuals) { | |
| 242 for (int i = 0; i< matchingCount; i++) { | |
| 243 XVisualInfo* temp = &matchingVisuals[i]; | |
| 244 int matchingdepth = supportsAlpha ? 32 : 24; | |
| 245 | |
| 246 if (temp->depth == matchingdepth) { | |
| 247 foundVisual = temp; | |
| 248 break; | |
| 249 } | |
| 250 } | |
| 251 | |
| 252 if (foundVisual) | |
| 253 createOffScreenWindow(handleId, *foundVisual, size); | |
| 254 } | |
| 255 #else | |
| 256 UNUSED_PARAM(handleId); | |
| 257 UNUSED_PARAM(id); | |
| 258 UNUSED_PARAM(size); | |
| 259 #endif | |
| 260 } | |
| 261 #endif | |
| 262 | |
| 263 void X11Helper::destroyWindow(const uint32_t windowId) | |
| 264 { | |
| 265 if (!windowId) | |
| 266 return; | |
| 267 | |
| 268 Display* display = nativeDisplay(); | |
| 269 if (!display) | |
| 270 return; | |
| 271 | |
| 272 XDestroyWindow(display, windowId); | |
| 273 } | |
| 274 | |
| 275 bool X11Helper::isXRenderExtensionSupported() | |
| 276 { | |
| 277 static bool queryDone = false; | |
| 278 static bool supportsXRenderExtension = false; | |
| 279 | |
| 280 if (!queryDone) { | |
| 281 queryDone = true; | |
| 282 #if USE(GRAPHICS_SURFACE) && USE(GLX) | |
| 283 Display* display = nativeDisplay(); | |
| 284 | |
| 285 if (display) { | |
| 286 int eventBasep, errorBasep; | |
| 287 supportsXRenderExtension = XRenderQueryExtension(display, &eventBase
p, &errorBasep); | |
| 288 } | |
| 289 #endif | |
| 290 } | |
| 291 | |
| 292 return supportsXRenderExtension; | |
| 293 } | |
| 294 | |
| 295 Display* X11Helper::nativeDisplay() | |
| 296 { | |
| 297 // Display connection will only be broken at program shutdown. | |
| 298 static DisplayConnection displayConnection; | |
| 299 return displayConnection.display(); | |
| 300 } | |
| 301 | |
| 302 Window X11Helper::offscreenRootWindow() | |
| 303 { | |
| 304 static OffScreenRootWindow offscreenWindow; | |
| 305 return offscreenWindow.rootWindow(); | |
| 306 } | |
| 307 | |
| 308 } | |
| 309 | |
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Chromium Code Reviews
Issue 13529026:
Removing a bunch of unused platform code. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk