resizing software devices in linux. Need to keep hold of XVisualInfo until...

resizing software devices in linux. Need to keep hold of XVisualInfo until window destruction, so we can use it to make new XImages when the window is resized

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@849 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/CIrrDeviceLinux.cpp

@@ -44,10 +44,10 @@ CIrrDeviceLinux::CIrrDeviceLinux(video::E_DRIVER_TYPE driverType,
 	const char* version)
  : CIrrDeviceStub(version, receiver),
 #ifdef _IRR_COMPILE_WITH_X11_
-	display(0), screennr(0), window(0), StdHints(0), SoftwareImage(0),
+	display(0), visual(0), screennr(0), window(0), StdHints(0), SoftwareImage(0),
 #endif
 	Fullscreen(fullscreen), StencilBuffer(sbuffer), AntiAlias(antiAlias), DriverType(driverType),
-	Width(windowSize.Width), Height(windowSize.Height), Depth(24),
+	Width(windowSize.Width), Height(windowSize.Height), Depth(24), 
 	Close(false), WindowActive(false), WindowMinimized(false), UseXVidMode(false), UseXRandR(false), UseGLXWindow(false)
 {
 	#ifdef _DEBUG
@@ -137,6 +137,9 @@ CIrrDeviceLinux::~CIrrDeviceLinux()
 		XDestroyWindow(display,window);
 		XCloseDisplay(display);
 	}
+	if (visual)
+		XFree(visual);
+
 #endif // #ifdef _IRR_COMPILE_WITH_X11_
 }
 
@@ -259,9 +262,6 @@ bool CIrrDeviceLinux::createWindow(const core::dimension2d<s32>& windowSize,
 			Fullscreen = false;
 		}
 	}
-
-	// get visual
-	XVisualInfo* visual = 0;
 	
 #ifdef _IRR_COMPILE_WITH_OPENGL_
 
@@ -593,7 +593,6 @@ bool CIrrDeviceLinux::createWindow(const core::dimension2d<s32>& windowSize,
 		SoftwareImage->data = (char*) malloc(SoftwareImage->bytes_per_line * SoftwareImage->height * sizeof(char));
 	} 
 
-	XFree(visual);
 #endif // #ifdef _IRR_COMPILE_WITH_X11_
 	return true;
 }
@@ -681,6 +680,21 @@ bool CIrrDeviceLinux::run()
 				{
 					Width = event.xconfigure.width;
 					Height = event.xconfigure.height;
+
+					// resize image data
+					if (DriverType == video::EDT_SOFTWARE || DriverType == video::EDT_BURNINGSVIDEO)
+					{
+						XDestroyImage(SoftwareImage);
+
+						SoftwareImage = XCreateImage(display, 
+							visual->visual, visual->depth, 
+							ZPixmap, 0, 0, Width, Height,
+							BitmapPad(display), 0);
+
+						// use malloc because X will free it later on
+						SoftwareImage->data = (char*) malloc(SoftwareImage->bytes_per_line * SoftwareImage->height * sizeof(char));
+					} 
+
 					if (VideoDriver)
 						VideoDriver->OnResize(core::dimension2d<s32>(Width, Height));
 				}

source/Irrlicht/CIrrDeviceLinux.h

@@ -290,6 +290,7 @@ namespace irr
 
 #ifdef _IRR_COMPILE_WITH_X11_
 		Display *display;
+		XVisualInfo* visual;
 		int screennr;
 		Window window;
 		XSetWindowAttributes attributes;