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GHOST/X11 - free memory allocated by XF86VidModeGetAllModeLines(),

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Comment from Zr says this crashes but looks like this was because there was no check if the function failed to allocate to begin with.
This commit is contained in:
Campbell Barton
2013-02-23 23:15:38 +00:00
parent 92f9db6628
commit c42b51ed96
2 changed files with 76 additions and 100 deletions
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71
intern/ghost/intern/GHOST_DisplayManagerX11.cpp
View File

@@ -81,9 +81,9 @@ getNumDisplaySettings(
return GHOST_kFailure;
}
/* The X11 man page says vidmodes needs to be freed, but doing so causes a
* segfault. - z0r */
XF86VidModeGetAllModeLines(dpy, DefaultScreen(dpy), &numSettings, &vidmodes);
if (XF86VidModeGetAllModeLines(dpy, DefaultScreen(dpy), &numSettings, &vidmodes)) {
XFree(vidmodes);
}
#else
/* We only have one X11 setting at the moment. */
@@ -112,50 +112,46 @@ getDisplaySetting(
GHOST_TInt32 index,
GHOST_DisplaySetting& setting) const
{
#ifdef WITH_X11_XF86VMODE
int majorVersion, minorVersion;
XF86VidModeModeInfo **vidmodes;
Display *dpy = m_system->getXDisplay();
int numSettings;
GHOST_ASSERT(display < 1, "Only single display systems are currently supported.\n");
if (dpy == NULL)
return GHOST_kFailure;
#ifdef WITH_X11_XF86VMODE
int majorVersion, minorVersion;
GHOST_ASSERT(display < 1, "Only single display systems are currently supported.\n");
majorVersion = minorVersion = 0;
if (!XF86VidModeQueryVersion(dpy, &majorVersion, &minorVersion)) {
fprintf(stderr, "Error: XF86VidMode extension missing!\n");
return GHOST_kFailure;
if (XF86VidModeQueryVersion(dpy, &majorVersion, &minorVersion)) {
XF86VidModeModeInfo **vidmodes;
int numSettings;
if (XF86VidModeGetAllModeLines(dpy, DefaultScreen(dpy), &numSettings, &vidmodes)) {
GHOST_ASSERT(index < numSettings, "Requested setting outside of valid range.\n");
setting.xPixels = vidmodes[index]->hdisplay;
setting.yPixels = vidmodes[index]->vdisplay;
setting.bpp = DefaultDepth(dpy, DefaultScreen(dpy));
setting.frequency = calculate_rate(vidmodes[index]);
XFree(vidmodes);
return GHOST_kSuccess;
}
}
else {
fprintf(stderr, "Warning: XF86VidMode extension missing!\n");
/* fallback to non xf86vmode below */
}
#endif /* WITH_X11_XF86VMODE */
/* The X11 man page says vidmodes needs to be freed, but doing so causes a
* segfault. - z0r */
XF86VidModeGetAllModeLines(dpy, DefaultScreen(dpy), &numSettings, &vidmodes);
GHOST_ASSERT(index < numSettings, "Requested setting outside of valid range.\n");
setting.xPixels = vidmodes[index]->hdisplay;
setting.yPixels = vidmodes[index]->vdisplay;
setting.bpp = DefaultDepth(dpy, DefaultScreen(dpy));
setting.frequency = (float)calculate_rate(vidmodes[index]);
#else
GHOST_ASSERT(display < 1, "Only single display systems are currently supported.\n");
GHOST_ASSERT(index < 1, "Requested setting outside of valid range.\n");
Display *x_display = m_system->getXDisplay();
if (x_display == NULL) {
return GHOST_kFailure;
}
setting.xPixels = DisplayWidth(x_display, DefaultScreen(x_display));
setting.yPixels = DisplayHeight(x_display, DefaultScreen(x_display));
setting.bpp = DefaultDepth(x_display, DefaultScreen(x_display));
setting.xPixels = DisplayWidth(dpy, DefaultScreen(dpy));
setting.yPixels = DisplayHeight(dpy, DefaultScreen(dpy));
setting.bpp = DefaultDepth(dpy, DefaultScreen(dpy));
setting.frequency = 60.0f;
#endif
return GHOST_kSuccess;
}
@@ -180,9 +176,8 @@ setCurrentDisplaySetting(
const GHOST_DisplaySetting& setting)
{
#ifdef WITH_X11_XF86VMODE
/* Mode switching code ported from Quake 2:
* ftp: ftp.idsoftware.com/idstuff/source/q2source-3.21.zip
* See linux/gl_glx.c:GLimp_SetMode
/* Mode switching code ported from SDL:
* See: src/video/x11/SDL_x11modes.c:set_best_resolution
*/
int majorVersion, minorVersion;
XF86VidModeModeInfo **vidmodes;

105
source/gameengine/GamePlayer/ghost/GPG_ghost.cpp
View File

@@ -612,7 +612,7 @@ int main(int argc, char** argv)
case 'i':
i++;
if ( (i + 1) <= validArguments )
parentWindow = atoi(argv[i++]);
parentWindow = atoi(argv[i++]);
else {
error = true;
printf("error: too few options for parent window argument.\n");
@@ -645,10 +645,10 @@ int main(int argc, char** argv)
stereomode = (RAS_IRasterizer::StereoMode) atoi(argv[i]);
if (stereomode < RAS_IRasterizer::RAS_STEREO_NOSTEREO || stereomode >= RAS_IRasterizer::RAS_STEREO_MAXSTEREO)
stereomode = RAS_IRasterizer::RAS_STEREO_NOSTEREO;
if (!strcmp(argv[i], "nostereo")) // ok, redundant but clear
stereomode = RAS_IRasterizer::RAS_STEREO_NOSTEREO;
// only the hardware pageflip method needs a stereo window
else if (!strcmp(argv[i], "hwpageflip")) {
stereomode = RAS_IRasterizer::RAS_STEREO_QUADBUFFERED;
@@ -656,22 +656,22 @@ int main(int argc, char** argv)
}
else if (!strcmp(argv[i], "syncdoubling"))
stereomode = RAS_IRasterizer::RAS_STEREO_ABOVEBELOW;
else if (!strcmp(argv[i], "anaglyph"))
stereomode = RAS_IRasterizer::RAS_STEREO_ANAGLYPH;
else if (!strcmp(argv[i], "sidebyside"))
stereomode = RAS_IRasterizer::RAS_STEREO_SIDEBYSIDE;
else if (!strcmp(argv[i], "vinterlace"))
stereomode = RAS_IRasterizer::RAS_STEREO_VINTERLACE;
#if 0
// future stuff
else if (!strcmp(argv[i], "stencil")
stereomode = RAS_STEREO_STENCIL;
// // future stuff
// else if (!strcmp(argv[i], "stencil")
// stereomode = RAS_STEREO_STENCIL;
#endif
i++;
stereoParFound = true;
stereoFlag = STEREO_ENABLED;
@@ -733,7 +733,7 @@ int main(int argc, char** argv)
i++;
}
}
if ((windowWidth < kMinWindowWidth) || (windowHeight < kMinWindowHeight))
{
error = true;
@@ -756,8 +756,7 @@ int main(int argc, char** argv)
//fullScreen = false; // Can't use full screen
#endif
if (SYS_GetCommandLineInt(syshandle, "nomipmap", 0))
{
if (SYS_GetCommandLineInt(syshandle, "nomipmap", 0)) {
GPU_set_mipmap(0);
}
@@ -765,15 +764,14 @@ int main(int argc, char** argv)
GPU_set_gpu_mipmapping(U.use_gpu_mipmap);
// Create the system
if (GHOST_ISystem::createSystem() == GHOST_kSuccess)
{
if (GHOST_ISystem::createSystem() == GHOST_kSuccess) {
GHOST_ISystem* system = GHOST_ISystem::getSystem();
assertd(system);
if (!fullScreenWidth || !fullScreenHeight)
system->getMainDisplayDimensions(fullScreenWidth, fullScreenHeight);
// process first batch of events. If the user
// drops a file on top off the blenderplayer icon, we
// drops a file on top off the blenderplayer icon, we
// receive an event with the filename
system->processEvents(0);
@@ -798,8 +796,7 @@ int main(int argc, char** argv)
// those may change during the game and persist after using Game Actuator
GlobalSettings gs;
do
{
do {
// Read the Blender file
BlendFileData *bfd;
@@ -814,19 +811,17 @@ int main(int argc, char** argv)
bfd = load_game_data(basedpath);
if (!bfd)
{
if (!bfd) {
// just add "//" in front of it
char temppath[242];
strcpy(temppath, "//");
strcat(temppath, basedpath);
BLI_path_abs(temppath, pathname);
bfd = load_game_data(temppath);
}
}
else
{
else {
bfd = load_game_data(BLI_program_path(), filename[0]? filename: NULL);
}
@@ -836,13 +831,11 @@ int main(int argc, char** argv)
usage(argv[0], isBlenderPlayer);
error = true;
exitcode = KX_EXIT_REQUEST_QUIT_GAME;
}
else
{
}
else {
#ifdef WIN32
#if !defined(DEBUG)
if (closeConsole)
{
if (closeConsole) {
system->toggleConsole(0); // Close a console window
}
#endif // !defined(DEBUG)
@@ -864,8 +857,7 @@ int main(int argc, char** argv)
titlename = maggie->name;
// Check whether the game should be displayed full-screen
if ((!fullScreenParFound) && (!windowParFound))
{
if ((!fullScreenParFound) && (!windowParFound)) {
// Only use file settings when command line did not override
if ((scene->gm.playerflag & GAME_PLAYER_FULLSCREEN)) {
//printf("fullscreen option found in Blender file\n");
@@ -885,16 +877,16 @@ int main(int argc, char** argv)
// Check whether the game should be displayed in stereo
if (!stereoParFound)
{
if (!stereoParFound) {
if (scene->gm.stereoflag == STEREO_ENABLED) {
stereomode = (RAS_IRasterizer::StereoMode) scene->gm.stereomode;
if (stereomode == RAS_IRasterizer::RAS_STEREO_QUADBUFFERED)
stereoWindow = true;
}
}
else
else {
scene->gm.stereoflag = STEREO_ENABLED;
}
if (!samplesParFound)
aasamples = scene->gm.aasamples;
@@ -908,8 +900,7 @@ int main(int argc, char** argv)
scene->gm.dome.tilt = domeTilt;
if (domeMode > 0)
scene->gm.dome.mode = domeMode;
if (domeWarp)
{
if (domeWarp) {
//XXX to do: convert relative to absolute path
domeText= BKE_text_load(G.main, domeWarp, "");
if (!domeText)
@@ -928,23 +919,21 @@ int main(int argc, char** argv)
#ifdef WITH_PYTHON
setGamePythonPath(G.main->name);
#endif
if (firstTimeRunning)
{
if (firstTimeRunning) {
firstTimeRunning = false;
if (fullScreen)
{
if (fullScreen) {
#ifdef WIN32
if (scr_saver_mode == SCREEN_SAVER_MODE_SAVER)
{
app.startScreenSaverFullScreen(fullScreenWidth, fullScreenHeight, fullScreenBpp, fullScreenFrequency,
stereoWindow, stereomode, aasamples);
stereoWindow, stereomode, aasamples);
}
else
#endif
{
app.startFullScreen(fullScreenWidth, fullScreenHeight, fullScreenBpp, fullScreenFrequency,
stereoWindow, stereomode, aasamples, (scene->gm.playerflag & GAME_PLAYER_DESKTOP_RESOLUTION));
stereoWindow, stereomode, aasamples, (scene->gm.playerflag & GAME_PLAYER_DESKTOP_RESOLUTION));
}
}
else
@@ -968,8 +957,7 @@ int main(int argc, char** argv)
vector<STR_String> parts = path.Explode('\\');
#endif // WIN32
STR_String title;
if (parts.size())
{
if (parts.size()) {
title = parts[parts.size()-1];
parts = title.Explode('.');
if (parts.size() > 1)
@@ -977,8 +965,7 @@ int main(int argc, char** argv)
title = parts[0];
}
}
else
{
else {
title = "blenderplayer";
}
#ifdef WIN32
@@ -989,16 +976,15 @@ int main(int argc, char** argv)
else
#endif
{
if (parentWindow != 0)
if (parentWindow != 0)
app.startEmbeddedWindow(title, parentWindow, stereoWindow, stereomode, aasamples);
else
app.startWindow(title, windowLeft, windowTop, windowWidth, windowHeight,
stereoWindow, stereomode, aasamples);
stereoWindow, stereomode, aasamples);
}
}
}
else
{
else {
app.StartGameEngine(stereomode);
exitcode = KX_EXIT_REQUEST_NO_REQUEST;
}
@@ -1014,11 +1000,9 @@ int main(int argc, char** argv)
#ifdef WITH_PYTHON
python_main = KX_GetPythonMain(scene);
#endif // WITH_PYTHON
if (python_main)
{
if (python_main) {
char *python_code = KX_GetPythonCode(maggie, python_main);
if (python_code)
{
if (python_code) {
#ifdef WITH_PYTHON
gpg_nextframestate.system = system;
gpg_nextframestate.app = &app;
@@ -1036,16 +1020,14 @@ int main(int argc, char** argv)
fprintf(stderr, "ERROR: cannot yield control to Python: no Python text data block named '%s'\n", python_main);
}
}
else
{
while (run)
{
else {
while (run) {
run = GPG_NextFrame(system, &app, exitcode, exitstring, &gs);
}
}
app.StopGameEngine();
/* 'app' is freed automatic when out of scope.
/* 'app' is freed automatic when out of scope.
* removal is needed else the system will free an already freed value */
system->removeEventConsumer(&app);
@@ -1060,7 +1042,8 @@ int main(int argc, char** argv)
// Dispose the system
GHOST_ISystem::disposeSystem();
} else {
}
else {
error = true;
printf("error: couldn't create a system.\n");
}
@@ -1090,5 +1073,3 @@ int main(int argc, char** argv)
return error ? -1 : 0;
}