diff options
Diffstat (limited to 'nx-X11/programs/Xserver/hw/nxagent/Composite.c')
| -rw-r--r-- | nx-X11/programs/Xserver/hw/nxagent/Composite.c | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/hw/nxagent/Composite.c b/nx-X11/programs/Xserver/hw/nxagent/Composite.c new file mode 100644 index 000000000..9bdbac1b1 --- /dev/null +++ b/nx-X11/programs/Xserver/hw/nxagent/Composite.c @@ -0,0 +1,209 @@ +/**************************************************************************/ +/* */ +/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/. */ +/* */ +/* NXAGENT, NX protocol compression and NX extensions to this software */ +/* are copyright of NoMachine. Redistribution and use of the present */ +/* software is allowed according to terms specified in the file LICENSE */ +/* which comes in the source distribution. */ +/* */ +/* Check http://www.nomachine.com/licensing.html for applicability. */ +/* */ +/* NX and NoMachine are trademarks of NoMachine S.r.l. */ +/* */ +/* All rights reserved. */ +/* */ +/**************************************************************************/ + +#include "scrnintstr.h" +#include "windowstr.h" + +#include "Agent.h" +#include "Screen.h" +#include "Display.h" +#include "Options.h" +#include "Windows.h" + +#undef NXAGENT_UPGRADE + +#ifndef NXAGENT_UPGRADE + +#include "NXcomposite.h" + +#else + +#include "composite.h" + +#endif + +/* + * Set here the required log level. + */ + +#define PANIC +#define WARNING +#undef TEST +#undef DEBUG + +/* + * Set if the composite extension is supported + * by the remote display. + */ + +int nxagentCompositeEnable = UNDEFINED; + +void nxagentCompositeExtensionInit() +{ + /* + * Set the flag only if the initialization + * completes. + */ + + nxagentCompositeEnable = 0; + + if (nxagentOption(Composite) == 1) + { + int eventBase, errorBase; + + #ifdef TEST + fprintf(stderr, "nxagentCompositeExtensionInit: Checking if the composite extension is supported.\n"); + #endif + + if (XCompositeQueryExtension(nxagentDisplay, &eventBase, &errorBase) == 1) + { + /* + * At the moment we don't need to care + * the version of the extension. + */ + + #ifdef TEST + + int major = -1; + int minor = -1; + + XCompositeQueryVersion(nxagentDisplay, &major, &minor); + + fprintf(stderr, "nxagentCompositeExtensionInit: The remote display supports version [%d] " + "minor [%d].\n", major, minor); + + if (major < 0 || minor < 2) + { + #ifdef WARNING + fprintf(stderr, "nxagentCompositeExtensionInit: WARNING! Potentially incompatible version " + "[%d] minor [%d] detected.\n", major, minor); + #endif + } + + #endif + + #ifdef TEST + fprintf(stderr, "nxagentCompositeExtensionInit: Enabling the use of the composite extension.\n"); + #endif + + nxagentCompositeEnable = 1; + } + #ifdef TEST + else + { + fprintf(stderr, "nxagentCompositeExtensionInit: Composite extension not supported on this display.\n"); + } + #endif + } + #ifdef TEST + else + { + fprintf(stderr, "nxagentRenderExtensionInit: Use of the composite extension not enabled.\n"); + } + #endif +} + +void nxagentRedirectDefaultWindows() +{ + int i; + + if (nxagentOption(Rootless) == 1 || + nxagentCompositeEnable == 0) + { + #ifdef TEST + fprintf(stderr, "nxagentRedirectDefaultWindows: Not redirecting default " + "windows with rootless mode [%d] and composite [%d].\n", + nxagentOption(Rootless), nxagentCompositeEnable); + #endif + + return; + } + + for (i = 0; i < screenInfo.numScreens; i++) + { + WindowPtr pWin = WindowTable[i]; + + ScreenPtr pScreen = pWin -> drawable.pScreen; + + #ifdef TEST + fprintf(stderr, "nxagentRedirectDefaultWindows: WARNING! Redirecting default window id [%ld] " + "to off-screen memory.\n", (long int)nxagentDefaultWindows[pScreen->myNum]); + #endif + + /* + * When trying to redirect only the top level window, + * and not the subwindows, we incur in a strange be- + * haviour. The top level is unmapped, mapped, unmap- + * ped and then reparented. This at first makes the + * agent think that the window manager is gone, then + * the agent window disappears. To make thinks even + * more weird, this happens only at reconnection. + */ + + XCompositeRedirectSubwindows(nxagentDisplay, nxagentDefaultWindows[pScreen->myNum], + CompositeRedirectAutomatic); + } +} + +void nxagentRedirectWindow(WindowPtr pWin) +{ + if (nxagentOption(Rootless) == 0 || + nxagentCompositeEnable == 0) + { + #ifdef TEST + fprintf(stderr, "nxagentRedirectWindow: Not redirecting window id [%ld] " + "to off-screen memory with rootless mode [%d] and composite [%d].\n", + nxagentWindow(pWin), nxagentOption(Rootless), + nxagentCompositeEnable); + #endif + + return; + } + + #ifdef TEST + fprintf(stderr, "nxagentRedirectWindow: WARNING! Redirecting window id [%ld] " + "to off-screen memory.\n", (long int)nxagentWindow(pWin)); + #endif + + XCompositeRedirectWindow(nxagentDisplay, nxagentWindow(pWin), + CompositeRedirectAutomatic); + + nxagentWindowPriv(pWin) -> isRedirected = 1; +} + +void nxagentUnredirectWindow(WindowPtr pWin) +{ + if (nxagentWindowPriv(pWin) -> isRedirected == 1) + { + #ifdef TEST + fprintf(stderr, "nxagentRedirectWindow: Disabling redirection of window id [%ld] " + "to off-screen memory.\n", nxagentWindow(pWin)); + #endif + + XCompositeUnredirectWindow(nxagentDisplay, nxagentWindow(pWin), + CompositeRedirectAutomatic); + + nxagentWindowPriv(pWin) -> isRedirected = 0; + } + #ifdef WARNING + else + { + fprintf(stderr, "nxagentUnredirectWindow: WARNING! The window id [%ld] " + "was not redirected.\n", (long int)nxagentWindow(pWin)); + } + #endif +} |