Hello list, I experience a crash when calling the first drawing function, after a call to Flip() with a double buffered primary surface.
The test code is this: (it is a little modification to the tutorial at http://www.directfb.org/docs/DirectFB_Tutorials/simple.html ): ---------- #include <stdio.h> #include <unistd.h> #include <directfb.h> static IDirectFB *dfb = NULL; // This is the super interface, it's the entry point to all functionality. static IDirectFBSurface *primary = NULL; // The primary surface, i.e. the "screen". // In cooperative level DFSCL_FULLSCREEN it's the surface of the primary layer. static int screen_width = 0; // Store the width and height of the primary surface here to support all resolutions. static int screen_height = 0; // An error checking macro for a call to DirectFB. // It is suitable for very simple apllications or tutorials. // In more sophisticated applications this general error checking should not be used. #define DFBCHECK(x...) { \ DFBResult err = x; \ if (err != DFB_OK) { \ fprintf( stderr, "%s <%d>:\n\t", __FILE__, __LINE__ ); \ DirectFBErrorFatal( #x, err ); \ } \ } int main (int argc, char **argv) { DFBSurfaceDescription dsc; // A surface description is needed to create a surface. DFBCHECK(DirectFBInit (&argc, &argv)); // Initialize DirectFB passing argc and argv // to support the standard DirectFB command line options. // DirectFB command line options will be stripped out automatically. DFBCHECK(DirectFBCreate (&dfb)); // Create the super interface. DFBCHECK(dfb->SetCooperativeLevel(dfb, DFSCL_FULLSCREEN)); // We want to go fullscreen, // the primary surface will be exclusive access to the surface of the primary layer. // If you disable this call a window will be created implicitly, // no further changes needed, flipping the surface updates the window. dsc.flags = DSDESC_CAPS; // Specify which fields of the struct are set. dsc.caps = DSCAPS_PRIMARY | DSCAPS_FLIPPING; // Fill out fields, in this example we want to have a flippable primary surface. DFBCHECK(dfb->CreateSurface( dfb, &dsc, &primary )); // Create the primary surface by passing our surface description. DFBCHECK(primary->GetSize (primary, &screen_width, &screen_height)); // We have exclusive access to the primary layer's surface now, // get the width and height of the surface, i.e. the screen resolution. unsigned int y=0; while (1) { DFBCHECK (primary->SetColor (primary, 0x00, 0x00, 0x00, 0xff)); DFBCHECK(primary->FillRectangle (primary, 0, 0, screen_width, screen_height)); // Clear the screen by filling a rectangle with the size of the surface. // Default color is black, default drawing flags are DSDRAW_NOFX. DFBCHECK (primary->SetColor (primary, 0x80, 0x80, 0xff, 0xff)); // Current color is black, so we have to set another one before. DFBCHECK (primary->DrawLine (primary, 0, y, screen_width - 1, y) ); // Draw a horizontal line in the middle of the screen. DFBCHECK (primary->Flip (primary, NULL, 0)); // Now flip the whole surface to make things visible. sleep (5); // Wait a bit to see the result before exiting the example application. y++; if (y >= screen_height) y=0; } // Cleanup in a stack like style. primary->Release( primary ); dfb->Release( dfb ); return 23; } ---------- The full output of the program is: ---------- root@deb-n2800:/mnt/directfb_test# ./directfb_test_mod ~~~~~~~~~~~~~~~~~~~~~~~~~~| DirectFB 1.2.10 |~~~~~~~~~~~~~~~~~~~~~~~~~~ (c) 2001-2008 The world wide DirectFB Open Source Community (c) 2000-2004 Convergence (integrated media) GmbH ---------------------------------------------------------------- (*) DirectFB/Core: Single Application Core. (2012-05-20 13:17) (*) Direct/Thread: Started 'VT Switcher' (-1) [CRITICAL OTHER/OTHER 0/0] <8388608>... (*) Direct/Thread: Started 'Linux Input' (-1) [INPUT OTHER/OTHER 0/0] <8388608>... (*) DirectFB/Input: DELL DELL USB Keyboard (1) 0.1 (directfb.org) (*) Direct/Thread: Started 'Linux Input' (-1) [INPUT OTHER/OTHER 0/0] <8388608>... (*) DirectFB/Input: HID 413c:3010 (2) 0.1 (directfb.org) (*) Direct/Thread: Started 'Linux Input' (-1) [INPUT OTHER/OTHER 0/0] <8388608>... (*) DirectFB/Input: Power Button (3) 0.1 (directfb.org) (*) Direct/Thread: Started 'Linux Input' (-1) [INPUT OTHER/OTHER 0/0] <8388608>... (*) DirectFB/Input: Sleep Button (4) 0.1 (directfb.org) (*) Direct/Thread: Started 'Linux Input' (-1) [INPUT OTHER/OTHER 0/0] <8388608>... (*) DirectFB/Input: Power Button (5) 0.1 (directfb.org) (*) Direct/Thread: Started 'Linux Input' (-1) [INPUT OTHER/OTHER 0/0] <8388608>... (*) DirectFB/Input: HDA Digital PCBeep (6) 0.1 (directfb.org) (*) Direct/Thread: Started 'Linux Input' (-1) [INPUT OTHER/OTHER 0/0] <8388608>... (*) DirectFB/Input: HDA Intel Rear Mic (7) 0.1 (directfb.org) (*) Direct/Thread: Started 'Linux Input' (-1) [INPUT OTHER/OTHER 0/0] <8388608>... (*) DirectFB/Input: HDA Intel Line Out (8) 0.1 (directfb.org) (*) Direct/Thread: Started 'Linux Input' (-1) [INPUT OTHER/OTHER 0/0] <8388608>... (*) DirectFB/Input: HDA Intel HDMI/DP,pcm=3 (9) 0.1 (directfb.org) (*) Direct/Thread: Started 'Linux Input' (-1) [INPUT OTHER/OTHER 0/0] <8388608>... (*) DirectFB/Input: PC Speaker (10) 0.1 (directfb.org) (*) Direct/Thread: Started 'Linux Input' (-1) [INPUT OTHER/OTHER 0/0] <8388608>... (*) DirectFB/Input: Video Bus (11) 0.1 (directfb.org) (*) Direct/Thread: Started 'Keyboard Input' (-1) [INPUT OTHER/OTHER 0/0] <8388608>... (*) DirectFB/Input: Keyboard 0.9 (directfb.org) (*) Direct/Thread: Started 'PS/2 Input' (-1) [INPUT OTHER/OTHER 0/0] <8388608>... (*) DirectFB/Input: IMPS/2 Mouse (1) 1.0 (directfb.org) (*) Direct/Thread: Started 'PS/2 Input' (-1) [INPUT OTHER/OTHER 0/0] <8388608>... (*) DirectFB/Input: IMPS/2 Mouse (2) 1.0 (directfb.org) (*) DirectFB/Genefx: MMX detected and enabled (*) DirectFB/Graphics: MMX Software Rasterizer 0.6 (directfb.org) (*) DirectFB/Core/WM: Default 0.3 (directfb.org) (*) FBDev/Surface: Allocated 1280x1024 32 bit RGB32 buffer (index 0) at offset 0 and pitch 6144. (*) FBDev/Surface: Allocated 1280x1024 32 bit RGB32 buffer (index 0) at offset 0 and pitch 6144. (*) FBDev/Mode: Setting 1280x1024 RGB32 (*) FBDev/Mode: Switched to 1280x1024 (virtual 1280x2048) at 32 bit (RGB32), pitch 6144 (!!!) *** WARNING [unable to adjust heap offset] *** [../../../systems/fbdev/surfacemanager.c:167 in dfb_surfacemanager_adjust_heap_offset()] (*) FBDev/Surface: Allocated 1280x1024 32 bit RGB32 buffer (index 1) at offset 6291456 and pitch 6144. (!) [ 2428: 0.000] --> Caught signal 11 (at 0xb6d29000, invalid permissions) <-- (!!!) *** WARNING [still objects in 'Layer Region Pool'] *** [../../../lib/fusion/object.c:241 in fusion_object_pool_destroy()] (!!!) *** WARNING [still objects in 'Layer Context Pool'] *** [../../../lib/fusion/object.c:241 in fusion_object_pool_destroy()] (!!!) *** WARNING [still objects in 'Surface Pool'] *** [../../../lib/fusion/object.c:241 in fusion_object_pool_destroy()] Annullato ---------- This is on Debian Wheezy i386, on Atom N2800, kernel 3.8 from Debian Experimental DirectFB is version 1.2.10 from Debian: http://packages.debian.org/wheezy/libdirectfb-1.2-9 I can reproduce the same behavior with Debian Squeeze i386, on Atom N270+intel 945GSE and on Debian Squeeze amd64, on Core 2 Quad Q9300+GeForce 6200LE How can I fix this? Thanks, Diego Guella
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