Is it a bug of gtkglext?
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Is it a bug of gtkglext?
by 明覺
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I compiled the example gtkglextmm program gears.cc(attached) to
a.out, it can start and display successfully, but if i resize the window, a segmentation fault error will occur, here is the error info from valgrind. any advice to solve it? thanks ------------------------------------------------------------------------------------------ minjue:~/workspace/Meck# valgrind --tool=memcheck ./a.out ==26447== Using valgrind-3.4.1-Debian, a dynamic binary instrumentation framework. ==26447== Copyright (C) 2000-2008, and GNU GPL'd, by Julian Seward et al. OpenGL visual configurations : glconfig->is_rgba() = true glconfig->is_double_buffered() = true glconfig->is_stereo() = false glconfig->has_alpha() = false glconfig->has_depth_buffer() = true glconfig->has_stencil_buffer() = false glconfig->has_accum_buffer() = false Gdk::GL::USE_GL = true Gdk::GL::BUFFER_SIZE = 24 Gdk::GL::LEVEL = 0 Gdk::GL::RGBA = true Gdk::GL::DOUBLEBUFFER = true Gdk::GL::STEREO = false Gdk::GL::AUX_BUFFERS = 0 Gdk::GL::RED_SIZE = 8 Gdk::GL::GREEN_SIZE = 8 Gdk::GL::BLUE_SIZE = 8 Gdk::GL::ALPHA_SIZE = 0 Gdk::GL::DEPTH_SIZE = 24 Gdk::GL::STENCIL_SIZE = 0 Gdk::GL::ACCUM_RED_SIZE = 0 Gdk::GL::ACCUM_GREEN_SIZE = 0 Gdk::GL::ACCUM_BLUE_SIZE = 0 Gdk::GL::ACCUM_ALPHA_SIZE = 0 GL_RENDERER = Software Rasterizer GL_VERSION = 2.1 Mesa 7.6-devel GL_VENDOR = Mesa Project GL_EXTENSIONS = GL_ARB_depth_texture GL_ARB_draw_buffers GL_ARB_fragment_program GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_framebuffer_object GL_ARB_half_float_pixel GL_ARB_imaging GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_pixel_buffer_object GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_shader_objects GL_ARB_shading_language_100 GL_ARB_shading_language_120 GL_ARB_shadow GL_ARB_shadow_ambient GL_ARB_texture_border_clamp GL_ARB_texture_compression GL_ARB_texture_cube_map GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_mirrored_repeat GL_ARB_texture_non_power_of_two GL_ARB_texture_rectangle GL_ARB_transpose_matrix GL_ARB_vertex_buffer_object GL_ARB_vertex_program GL_ARB_vertex_shader GL_ARB_window_pos GL_EXT_abgr GL_EXT_bgra GL_EXT_blend_color GL_EXT_blend_equation_separate GL_EXT_blend_func_separate GL_EXT_blend_logic_op GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_compiled_vertex_array GL_EXT_convolution GL_EXT_copy_texture GL_EXT_depth_bounds_test GL_EXT_draw_range_elements GL_EXT_framebuffer_object GL_EXT_framebuffer_blit GL_EXT_fog_coord GL_EXT_gpu_program_parameters GL_EXT_histogram GL_EXT_multi_draw_arrays GL_EXT_packed_depth_stencil GL_EXT_packed_pixels GL_EXT_paletted_texture GL_EXT_pixel_buffer_object GL_EXT_point_parameters GL_EXT_polygon_offset GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_specular_color GL_EXT_shadow_funcs GL_EXT_shared_texture_palette GL_EXT_stencil_two_side GL_EXT_stencil_wrap GL_EXT_subtexture GL_EXT_texture GL_EXT_texture3D GL_EXT_texture_edge_clamp GL_EXT_texture_env_add GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_EXT_texture_lod_bias GL_EXT_texture_mirror_clamp GL_EXT_texture_object GL_EXT_texture_rectangle GL_EXT_texture_sRGB GL_EXT_texture_swizzle GL_EXT_vertex_array GL_EXT_vertex_array_bgra GL_3DFX_texture_compression_FXT1 GL_APPLE_packed_pixels GL_APPLE_vertex_array_object GL_ATI_blend_equation_separate GL_ATI_envmap_bumpmap GL_ATI_texture_env_combine3 GL_ATI_texture_mirror_once GL_ATI_fragment_shader GL_ATI_separate_stencil GL_IBM_multimode_draw_arrays GL_IBM_rasterpos_clip GL_IBM_texture_mirrored_repeat GL_INGR_blend_func_separate GL_MESA_pack_invert GL_MESA_resize_buffers GL_MESA_texture_array GL_MESA_ycbcr_texture GL_MESA_window_pos GL_NV_blend_square GL_NV_fragment_program GL_NV_light_max_exponent GL_NV_point_sprite GL_NV_texture_env_combine4 GL_NV_texture_rectangle GL_NV_texgen_reflection GL_NV_vertex_program GL_NV_vertex_program1_1 GL_OES_read_format GL_SGI_color_matrix GL_SGI_color_table GL_SGI_texture_color_table GL_SGIS_generate_mipmap GL_SGIS_texture_border_clamp GL_SGIS_texture_edge_clamp GL_SGIS_texture_lod GL_SUN_multi_draw_arrays 11 frames in 5.071 seconds = 2.169 FPS ==26447== Conditional jump or move depends on uninitialised value(s) ==26447== at 0x5F8BE57: glXWaitX (glxcmds.c:659) ==26447== by 0x9CB211C: g_closure_invoke (gclosure.c:767) ==26447== by 0x9CC5C2A: signal_emit_unlocked_R (gsignal.c:3247) ==26447== by 0x9CC7021: g_signal_emit_valist (gsignal.c:2980) ==26447== by 0x9CC74F2: g_signal_emit (gsignal.c:3037) ==26447== by 0x792D269: gtk_widget_size_allocate (in /usr/lib/libgtk-x11-2.0.so.0.1600.1) ==26447== by 0x783F157: (within /usr/lib/libgtk-x11-2.0.so.0.1600.1) ==26447== by 0x9CB206E: g_closure_invoke (gclosure.c:767) ==26447== by 0x9CC5512: signal_emit_unlocked_R (gsignal.c:3177) ==26447== by 0x9CC7021: g_signal_emit_valist (gsignal.c:2980) ==26447== by 0x9CC74F2: g_signal_emit (gsignal.c:3037) ==26447== by 0x792D269: gtk_widget_size_allocate (in /usr/lib/libgtk-x11-2.0.so.0.1600.1) -- 我的操作系統是Gnu/Linux Debian/gNewSense Gnome Mozilla Gmail/Evolution Gtkmm/Gtkglextmm Scim Totem Pidgin. [gears.cc] // -*- C++ -*- /* * 3-D gear wheels. This program is in the public domain. * * Brian Paul */ /* Conversion to gtkglextmm by Naofumi Yasufuku */ #include <iostream> #include <cstdlib> #include <cmath> #include <cstring> #include <gtkmm.h> #include <gtkglmm.h> #ifdef G_OS_WIN32 #define WIN32_LEAN_AND_MEAN 1 #include <windows.h> #endif #include <GL/gl.h> #include <GL/glu.h> // // OpenGL frame buffer configuration utilities. // struct GLConfigUtil { static void print_gl_attrib(const Glib::RefPtr<const Gdk::GL::Config>& glconfig, const char* attrib_str, int attrib, bool is_boolean); static void examine_gl_attrib(const Glib::RefPtr<const Gdk::GL::Config>& glconfig); }; // // Print a configuration attribute. // void GLConfigUtil::print_gl_attrib(const Glib::RefPtr<const Gdk::GL::Config>& glconfig, const char* attrib_str, int attrib, bool is_boolean) { int value; if (glconfig->get_attrib(attrib, value)) { std::cout << attrib_str << " = "; if (is_boolean) std::cout << (value == true ? "true" : "false") << std::endl; else std::cout << value << std::endl; } else { std::cout << "*** Cannot get " << attrib_str << " attribute value\n"; } } // // Print configuration attributes. // void GLConfigUtil::examine_gl_attrib(const Glib::RefPtr<const Gdk::GL::Config>& glconfig) { std::cout << "\nOpenGL visual configurations :\n\n"; std::cout << "glconfig->is_rgba() = " << (glconfig->is_rgba() ? "true" : "false") << std::endl; std::cout << "glconfig->is_double_buffered() = " << (glconfig->is_double_buffered() ? "true" : "false") << std::endl; std::cout << "glconfig->is_stereo() = " << (glconfig->is_stereo() ? "true" : "false") << std::endl; std::cout << "glconfig->has_alpha() = " << (glconfig->has_alpha() ? "true" : "false") << std::endl; std::cout << "glconfig->has_depth_buffer() = " << (glconfig->has_depth_buffer() ? "true" : "false") << std::endl; std::cout << "glconfig->has_stencil_buffer() = " << (glconfig->has_stencil_buffer() ? "true" : "false") << std::endl; std::cout << "glconfig->has_accum_buffer() = " << (glconfig->has_accum_buffer() ? "true" : "false") << std::endl; std::cout << std::endl; print_gl_attrib(glconfig, "Gdk::GL::USE_GL", Gdk::GL::USE_GL, true); print_gl_attrib(glconfig, "Gdk::GL::BUFFER_SIZE", Gdk::GL::BUFFER_SIZE, false); print_gl_attrib(glconfig, "Gdk::GL::LEVEL", Gdk::GL::LEVEL, false); print_gl_attrib(glconfig, "Gdk::GL::RGBA", Gdk::GL::RGBA, true); print_gl_attrib(glconfig, "Gdk::GL::DOUBLEBUFFER", Gdk::GL::DOUBLEBUFFER, true); print_gl_attrib(glconfig, "Gdk::GL::STEREO", Gdk::GL::STEREO, true); print_gl_attrib(glconfig, "Gdk::GL::AUX_BUFFERS", Gdk::GL::AUX_BUFFERS, false); print_gl_attrib(glconfig, "Gdk::GL::RED_SIZE", Gdk::GL::RED_SIZE, false); print_gl_attrib(glconfig, "Gdk::GL::GREEN_SIZE", Gdk::GL::GREEN_SIZE, false); print_gl_attrib(glconfig, "Gdk::GL::BLUE_SIZE", Gdk::GL::BLUE_SIZE, false); print_gl_attrib(glconfig, "Gdk::GL::ALPHA_SIZE", Gdk::GL::ALPHA_SIZE, false); print_gl_attrib(glconfig, "Gdk::GL::DEPTH_SIZE", Gdk::GL::DEPTH_SIZE, false); print_gl_attrib(glconfig, "Gdk::GL::STENCIL_SIZE", Gdk::GL::STENCIL_SIZE, false); print_gl_attrib(glconfig, "Gdk::GL::ACCUM_RED_SIZE", Gdk::GL::ACCUM_RED_SIZE, false); print_gl_attrib(glconfig, "Gdk::GL::ACCUM_GREEN_SIZE", Gdk::GL::ACCUM_GREEN_SIZE, false); print_gl_attrib(glconfig, "Gdk::GL::ACCUM_BLUE_SIZE", Gdk::GL::ACCUM_BLUE_SIZE, false); print_gl_attrib(glconfig, "Gdk::GL::ACCUM_ALPHA_SIZE", Gdk::GL::ACCUM_ALPHA_SIZE, false); std::cout << std::endl; } // // Gears scene. // class GearsScene : public Gtk::GL::DrawingArea { public: explicit GearsScene(bool is_sync = true); virtual ~GearsScene(); protected: void gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width, GLint teeth, GLfloat tooth_depth); protected: // signal handlers: virtual void on_realize(); virtual bool on_configure_event(GdkEventConfigure* event); virtual bool on_expose_event(GdkEventExpose* event); virtual bool on_map_event(GdkEventAny* event); virtual bool on_unmap_event(GdkEventAny* event); virtual bool on_visibility_notify_event(GdkEventVisibility* event); virtual bool on_idle(); public: // Invalidate whole window. void invalidate() { get_window()->invalidate_rect(get_allocation(), false); } // Update window synchronously (fast). void update() { get_window()->process_updates(false); } protected: // idle signal connection: sigc::connection m_ConnectionIdle; public: // get & set view rotation values. void get_view_rot(GLfloat& x, GLfloat& y, GLfloat& z) { x = m_ViewRotX; y = m_ViewRotY; z = m_ViewRotZ; } void set_view_rot(GLfloat x, GLfloat y, GLfloat z) { m_ViewRotX = x; m_ViewRotY = y; m_ViewRotZ = z; } protected: // OpenGL scene related variables: GLint m_Gear1; GLint m_Gear2; GLint m_Gear3; GLfloat m_ViewRotX; GLfloat m_ViewRotY; GLfloat m_ViewRotZ; GLfloat m_Angle; bool m_IsSync; protected: // frame rate evaluation stuff: Glib::Timer m_Timer; int m_Frames; }; GearsScene::GearsScene(bool is_sync) : m_Gear1(0), m_Gear2(0), m_Gear3(0), m_ViewRotX(20.0), m_ViewRotY(30.0), m_ViewRotZ(0.0), m_Angle(0.0), m_IsSync(is_sync), m_Frames(0) { // // Configure OpenGL-capable visual. // Glib::RefPtr<Gdk::GL::Config> glconfig; // Try double-buffered visual glconfig = Gdk::GL::Config::create(Gdk::GL::MODE_RGB | Gdk::GL::MODE_DEPTH | Gdk::GL::MODE_DOUBLE); if (!glconfig) { std::cerr << "*** Cannot find the double-buffered visual.\n" << "*** Trying single-buffered visual.\n"; // Try single-buffered visual glconfig = Gdk::GL::Config::create(Gdk::GL::MODE_RGB | Gdk::GL::MODE_DEPTH); if (!glconfig) { std::cerr << "*** Cannot find any OpenGL-capable visual.\n"; std::exit(1); } } // print frame buffer attributes. GLConfigUtil::examine_gl_attrib(glconfig); // // Set OpenGL-capability to the widget. // set_gl_capability(glconfig); // Add events. add_events(Gdk::VISIBILITY_NOTIFY_MASK); } GearsScene::~GearsScene() { } /* * Draw a gear wheel. You'll probably want to call this function when * building a display list since we do a lot of trig here. * * Input: inner_radius - radius of hole at center * outer_radius - radius at center of teeth * width - width of gear * teeth - number of teeth * tooth_depth - depth of tooth */ void GearsScene::gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width, GLint teeth, GLfloat tooth_depth) { GLint i; GLfloat r0, r1, r2; GLfloat angle, da; GLfloat u, v, len; r0 = inner_radius; r1 = outer_radius - tooth_depth / 2.0; r2 = outer_radius + tooth_depth / 2.0; da = 2.0 * G_PI / teeth / 4.0; glShadeModel(GL_FLAT); glNormal3f(0.0, 0.0, 1.0); /* draw front face */ glBegin(GL_QUAD_STRIP); for (i = 0; i <= teeth; i++) { angle = i * 2.0 * G_PI / teeth; glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5); glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5); if (i < teeth) { glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5); glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), width * 0.5); } } glEnd(); /* draw front sides of teeth */ glBegin(GL_QUADS); da = 2.0 * G_PI / teeth / 4.0; for (i = 0; i < teeth; i++) { angle = i * 2.0 * G_PI / teeth; glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5); glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5); glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), width * 0.5); glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), width * 0.5); } glEnd(); glNormal3f(0.0, 0.0, -1.0); /* draw back face */ glBegin(GL_QUAD_STRIP); for (i = 0; i <= teeth; i++) { angle = i * 2.0 * G_PI / teeth; glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5); glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5); if (i < teeth) { glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), -width * 0.5); glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5); } } glEnd(); /* draw back sides of teeth */ glBegin(GL_QUADS); da = 2.0 * G_PI / teeth / 4.0; for (i = 0; i < teeth; i++) { angle = i * 2.0 * G_PI / teeth; glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), -width * 0.5); glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), -width * 0.5); glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5); glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5); } glEnd(); /* draw outward faces of teeth */ glBegin(GL_QUAD_STRIP); for (i = 0; i < teeth; i++) { angle = i * 2.0 * G_PI / teeth; glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5); glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5); u = r2 * cos(angle + da) - r1 * cos(angle); v = r2 * sin(angle + da) - r1 * sin(angle); len = sqrt(u * u + v * v); u /= len; v /= len; glNormal3f(v, -u, 0.0); glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5); glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5); glNormal3f(cos(angle), sin(angle), 0.0); glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), width * 0.5); glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), -width * 0.5); u = r1 * cos(angle + 3 * da) - r2 * cos(angle + 2 * da); v = r1 * sin(angle + 3 * da) - r2 * sin(angle + 2 * da); glNormal3f(v, -u, 0.0); glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), width * 0.5); glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), -width * 0.5); glNormal3f(cos(angle), sin(angle), 0.0); } glVertex3f(r1 * cos(0), r1 * sin(0), width * 0.5); glVertex3f(r1 * cos(0), r1 * sin(0), -width * 0.5); glEnd(); glShadeModel(GL_SMOOTH); /* draw inside radius cylinder */ glBegin(GL_QUAD_STRIP); for (i = 0; i <= teeth; i++) { angle = i * 2.0 * G_PI / teeth; glNormal3f(-cos(angle), -sin(angle), 0.0); glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5); glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5); } glEnd(); } void GearsScene::on_realize() { // We need to call the base on_realize() Gtk::DrawingArea::on_realize(); // // Get GL::Drawable. // Glib::RefPtr<Gdk::GL::Drawable> gldrawable = get_gl_drawable(); // // GL calls. // // *** OpenGL BEGIN *** if (!gldrawable->gl_begin(get_gl_context())) return; static GLfloat pos[4] = {5.0, 5.0, 10.0, 0.0}; static GLfloat red[4] = {0.8, 0.1, 0.0, 1.0}; static GLfloat green[4] = {0.0, 0.8, 0.2, 1.0}; static GLfloat blue[4] = {0.2, 0.2, 1.0, 1.0}; glLightfv(GL_LIGHT0, GL_POSITION, pos); glEnable(GL_CULL_FACE); glEnable(GL_LIGHTING); glEnable(GL_LIGHT0); glEnable(GL_DEPTH_TEST); // Make the gears. m_Gear1 = glGenLists(1); glNewList(m_Gear1, GL_COMPILE); glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red); gear(1.0, 4.0, 1.0, 20, 0.7); glEndList(); m_Gear2 = glGenLists(1); glNewList(m_Gear2, GL_COMPILE); glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green); gear(0.5, 2.0, 2.0, 10, 0.7); glEndList(); m_Gear3 = glGenLists(1); glNewList(m_Gear3, GL_COMPILE); glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue); gear(1.3, 2.0, 0.5, 10, 0.7); glEndList(); glEnable(GL_NORMALIZE); std::cout << "GL_RENDERER = " << glGetString(GL_RENDERER) << std::endl; std::cout << "GL_VERSION = " << glGetString(GL_VERSION) << std::endl; std::cout << "GL_VENDOR = " << glGetString(GL_VENDOR) << std::endl; std::cout << "GL_EXTENSIONS = " << glGetString(GL_EXTENSIONS) << std::endl; std::cout << std::endl; gldrawable->gl_end(); // *** OpenGL END *** // Start timer. m_Timer.start(); } bool GearsScene::on_configure_event(GdkEventConfigure* event) { // // Get GL::Drawable. // Glib::RefPtr<Gdk::GL::Drawable> gldrawable = get_gl_drawable(); // // GL calls. // // *** OpenGL BEGIN *** if (!gldrawable->gl_begin(get_gl_context())) return false; GLfloat h = (GLfloat)(get_height()) / (GLfloat)(get_width()); glViewport(0, 0, get_width(), get_height()); glMatrixMode(GL_PROJECTION); glLoadIdentity(); glFrustum(-1.0, 1.0, -h, h, 5.0, 60.0); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); glTranslatef(0.0, 0.0, -40.0); gldrawable->gl_end(); // *** OpenGL END *** return true; } bool GearsScene::on_expose_event(GdkEventExpose* event) { // // Get GL::Drawable. // Glib::RefPtr<Gdk::GL::Drawable> gldrawable = get_gl_drawable(); // // GL calls. // // *** OpenGL BEGIN *** if (!gldrawable->gl_begin(get_gl_context())) return false; glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glPushMatrix(); glRotatef(m_ViewRotX, 1.0, 0.0, 0.0); glRotatef(m_ViewRotY, 0.0, 1.0, 0.0); glRotatef(m_ViewRotZ, 0.0, 0.0, 1.0); glPushMatrix(); glTranslatef(-3.0, -2.0, 0.0); glRotatef(m_Angle, 0.0, 0.0, 1.0); glCallList(m_Gear1); glPopMatrix(); glPushMatrix(); glTranslatef(3.1, -2.0, 0.0); glRotatef(-2.0 * m_Angle - 9.0, 0.0, 0.0, 1.0); glCallList(m_Gear2); glPopMatrix(); glPushMatrix(); glTranslatef(-3.1, 4.2, 0.0); glRotatef(-2.0 * m_Angle - 25.0, 0.0, 0.0, 1.0); glCallList(m_Gear3); glPopMatrix(); glPopMatrix(); // Swap buffers. if (gldrawable->is_double_buffered()) gldrawable->swap_buffers(); else glFlush(); gldrawable->gl_end(); // *** OpenGL END *** // // Print frame rate. // ++m_Frames; double seconds = m_Timer.elapsed(); if (seconds >= 5.0) { // std::cout.setf(std::ios_base::fixed, std::ios_base::floatfield); std::cout.setf(std::ios::fixed, std::ios::floatfield); std::cout.precision(3); std::cout << m_Frames << " frames in " << seconds << " seconds = " << (m_Frames / seconds) << " FPS\n"; m_Timer.reset(); m_Frames = 0; } return true; } bool GearsScene::on_map_event(GdkEventAny* event) { if (!m_ConnectionIdle.connected()) m_ConnectionIdle = Glib::signal_idle().connect( sigc::mem_fun(*this, &GearsScene::on_idle), GDK_PRIORITY_REDRAW); return true; } bool GearsScene::on_unmap_event(GdkEventAny* event) { if (m_ConnectionIdle.connected()) m_ConnectionIdle.disconnect(); return true; } bool GearsScene::on_visibility_notify_event(GdkEventVisibility* event) { if (event->state == GDK_VISIBILITY_FULLY_OBSCURED) { if (m_ConnectionIdle.connected()) m_ConnectionIdle.disconnect(); } else { if (!m_ConnectionIdle.connected()) m_ConnectionIdle = Glib::signal_idle().connect( sigc::mem_fun(*this, &GearsScene::on_idle), GDK_PRIORITY_REDRAW); } return true; } bool GearsScene::on_idle() { m_Angle += 2.0; // Invalidate the whole window. invalidate(); // Update window synchronously (fast). if (m_IsSync) update(); return true; } // // The application class. // class Gears : public Gtk::Window { public: explicit Gears(bool is_sync = true); virtual ~Gears(); protected: // signal handlers: void on_button_quit_clicked(); virtual bool on_key_press_event(GdkEventKey* event); protected: // member widgets: Gtk::VBox m_VBox; GearsScene m_GearsScene; Gtk::Button m_ButtonQuit; }; Gears::Gears(bool is_sync) : m_VBox(false, 0), m_GearsScene(is_sync), m_ButtonQuit("Quit") { // // Top-level window. // set_title("Gears"); // Get automatically redrawn if any of their children changed allocation. set_reallocate_redraws(true); add(m_VBox); // // Gears scene. // m_GearsScene.set_size_request(300, 300); m_VBox.pack_start(m_GearsScene); // // Simple quit button. // m_ButtonQuit.signal_clicked().connect( sigc::mem_fun(*this, &Gears::on_button_quit_clicked)); m_VBox.pack_start(m_ButtonQuit, Gtk::PACK_SHRINK, 0); // // Show window. // show_all(); } Gears::~Gears() { } void Gears::on_button_quit_clicked() { Gtk::Main::quit(); } bool Gears::on_key_press_event(GdkEventKey* event) { GLfloat x, y, z; m_GearsScene.get_view_rot(x, y, z); switch (event->keyval) { case GDK_z: z += 5.0; break; case GDK_Z: z -= 5.0; break; case GDK_Up: x += 5.0; break; case GDK_Down: x -= 5.0; break; case GDK_Left: y += 5.0; break; case GDK_Right: y -= 5.0; break; case GDK_Escape: Gtk::Main::quit(); break; default: return true; } m_GearsScene.set_view_rot(x, y, z); m_GearsScene.invalidate(); return true; } // // Main. // int main(int argc, char** argv) { Gtk::Main kit(argc, argv); // // Init gtkglextmm. // Gtk::GL::init(argc, argv); // // Parse arguments. // bool is_sync = true; for (int i = 1; i < argc; ++i) { if (std::strcmp(argv[i], "--async") == 0) is_sync = false; } // // Instantiate and run the application. // Gears gears(is_sync); kit.run(gears); return 0; } _______________________________________________ gtkglext-list mailing list gtkglext-list@... http://mail.gnome.org/mailman/listinfo/gtkglext-list |
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Re: Is it a bug of gtkglext?
by Braden McDaniel
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On Wed, 2009-05-13 at 15:09 +0800, 明覺 wrote:
> I compiled the example gtkglextmm program gears.cc(attached) There's no reason to attach source code that is part of the GtkGLExt distribtion to mailing list messages. We know where to find it. :-) > to > a.out, it can start and display successfully, but if i resize the > window, a segmentation fault error will occur, here is the error info > from valgrind. any advice to solve it? thanks The actual failure is happening inside of Mesa (presumably) code. glXWaitX isn't reasonably close to line 659 in trunk Mesa; so you'll need to track this down in the source to whatever version you're using. You should probably try turning up the verbosity in valgrind to see if it will tell you *what* value was uninitialized; though looking at the right line 659 might make that apparent. -- Braden McDaniel <braden@...> _______________________________________________ gtkglext-list mailing list gtkglext-list@... http://mail.gnome.org/mailman/listinfo/gtkglext-list |
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Re: Is it a bug of gtkglext?
by 明覺
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On Wed, May 13, 2009 at 11:14 PM, Braden McDaniel <braden@...> wrote:
> On Wed, 2009-05-13 at 15:09 +0800, 明覺 wrote: >> I compiled the example gtkglextmm program gears.cc(attached) > > There's no reason to attach source code that is part of the GtkGLExt > distribtion to mailing list messages. We know where to find it. :-) > >> to >> a.out, it can start and display successfully, but if i resize the >> window, a segmentation fault error will occur, here is the error info >> from valgrind. any advice to solve it? thanks > > The actual failure is happening inside of Mesa (presumably) code. > glXWaitX isn't reasonably close to line 659 in trunk Mesa; so you'll > need to track this down in the source to whatever version you're using. > > You should probably try turning up the verbosity in valgrind to see if > it will tell you *what* value was uninitialized; though looking at the > right line 659 might make that apparent. thank you for the information, here is the ouput of valgrind, how could i solve it? and someone said that it's caused by video driver error, is that possible? ----------------------------------------------------------------------------------------- ==3503== ERROR SUMMARY: 3 errors from 2 contexts (suppressed: 275 from 5) ==3503== ==3503== 1 errors in context 1 of 2: ==3503== Conditional jump or move depends on uninitialised value(s) ==3503== at 0x5F8BF98: glXWaitGL (glxcmds.c:620) ==3503== by 0x5AD6730: _gdk_gl_context_destroy (gdkglcontext-x11.c:95) ==3503== by 0x5ABA8B1: gdk_gl_context_destroy (gdkglcontext.c:118) ==3503== by 0x5243BC1: gtk_gl_widget_unrealize (gtkglwidget.c:149) ==3503== by 0x9CB211C: g_closure_invoke (gclosure.c:767) ==3503== by 0x9CC5C2A: signal_emit_unlocked_R (gsignal.c:3247) ==3503== by 0x9CC7021: g_signal_emit_valist (gsignal.c:2980) ==3503== by 0x9CC74F2: g_signal_emit (gsignal.c:3037) ==3503== by 0x792ED61: gtk_widget_unrealize (in /usr/lib/libgtk-x11-2.0.so.0.1600.1) ==3503== by 0x7934ABC: gtk_widget_unparent (in /usr/lib/libgtk-x11-2.0.so.0.1600.1) ==3503== by 0x783C257: (within /usr/lib/libgtk-x11-2.0.so.0.1600.1) ==3503== by 0x9CB211C: g_closure_invoke (gclosure.c:767) ==3503== Uninitialised value was created by a heap allocation ==3503== at 0x4C2391E: malloc (vg_replace_malloc.c:207) ==3503== by 0x5FACEFD: driCreateScreen (drisw_glx.c:362) ==3503== by 0x5F8DDEE: __glXInitialize (glxext.c:622) ==3503== by 0x5F8918C: GetGLXPrivScreenConfig (glxcmds.c:183) ==3503== by 0x5F8A00E: glXChooseVisual (glxcmds.c:1304) ==3503== by 0x5AD60CB: gdk_gl_config_new_common (gdkglconfig-x11.c:519) ==3503== by 0x5ABA1EE: gdk_gl_config_new_rgb (gdkglconfig.c:193) ==3503== by 0x5ABA316: gdk_gl_config_new_by_mode_common (gdkglconfig.c:210) ==3503== by 0x503A75A: Gdk::GL::Config::create(Gdk::GL::ConfigMode) (in /usr/lib/libgdkglextmm-x11-1.2.so.0.0.0) ==3503== by 0x4149FB: SurfaceView::SurfaceView(bool) (SurfaceView.cc:81) ==3503== by 0x415171: MechanicalSystemUi::MechanicalSystemUi() (Ui.cc:19) ==3503== by 0x40E1D0: main (main.cc:66) ==3503== ==3503== 2 errors in context 2 of 2: ==3503== Conditional jump or move depends on uninitialised value(s) ==3503== at 0x5F8BE57: glXWaitX (glxcmds.c:659) ==3503== by 0x9CB211C: g_closure_invoke (gclosure.c:767) ==3503== by 0x9CC5C2A: signal_emit_unlocked_R (gsignal.c:3247) ==3503== by 0x9CC7021: g_signal_emit_valist (gsignal.c:2980) ==3503== by 0x9CC74F2: g_signal_emit (gsignal.c:3037) ==3503== by 0x792D269: gtk_widget_size_allocate (in /usr/lib/libgtk-x11-2.0.so.0.1600.1) ==3503== by 0x783F157: (within /usr/lib/libgtk-x11-2.0.so.0.1600.1) ==3503== by 0x9CB206E: g_closure_invoke (gclosure.c:767) ==3503== by 0x9CC5512: signal_emit_unlocked_R (gsignal.c:3177) ==3503== by 0x9CC7021: g_signal_emit_valist (gsignal.c:2980) ==3503== by 0x9CC74F2: g_signal_emit (gsignal.c:3037) ==3503== by 0x792D269: gtk_widget_size_allocate (in /usr/lib/libgtk-x11-2.0.so.0.1600.1) ==3503== Uninitialised value was created by a heap allocation ==3503== at 0x4C2391E: malloc (vg_replace_malloc.c:207) ==3503== by 0x5FACEFD: driCreateScreen (drisw_glx.c:362) ==3503== by 0x5F8DDEE: __glXInitialize (glxext.c:622) ==3503== by 0x5F8918C: GetGLXPrivScreenConfig (glxcmds.c:183) ==3503== by 0x5F8A00E: glXChooseVisual (glxcmds.c:1304) ==3503== by 0x5AD60CB: gdk_gl_config_new_common (gdkglconfig-x11.c:519) ==3503== by 0x5ABA1EE: gdk_gl_config_new_rgb (gdkglconfig.c:193) ==3503== by 0x5ABA316: gdk_gl_config_new_by_mode_common (gdkglconfig.c:210) ==3503== by 0x503A75A: Gdk::GL::Config::create(Gdk::GL::ConfigMode) (in /usr/lib/libgdkglextmm-x11-1.2.so.0.0.0) ==3503== by 0x4149FB: SurfaceView::SurfaceView(bool) (SurfaceView.cc:81) ==3503== by 0x415171: MechanicalSystemUi::MechanicalSystemUi() (Ui.cc:19) ==3503== by 0x40E1D0: main (main.cc:66) > > -- > Braden McDaniel <braden@...> > > _______________________________________________ > gtkglext-list mailing list > gtkglext-list@... > http://mail.gnome.org/mailman/listinfo/gtkglext-list > -- 我的操作系統是Gnu/Linux Debian/gNewSense Gnome Mozilla Gmail/Evolution Gtkmm/Gtkglextmm Scim Totem Pidgin. _______________________________________________ gtkglext-list mailing list gtkglext-list@... http://mail.gnome.org/mailman/listinfo/gtkglext-list |
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Re: Is it a bug of gtkglext?
by Braden McDaniel
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On Fri, 2009-05-15 at 11:58 +0800, 明覺 wrote:
> On Wed, May 13, 2009 at 11:14 PM, Braden McDaniel <braden@...> wrote: > > On Wed, 2009-05-13 at 15:09 +0800, 明覺 wrote: > >> I compiled the example gtkglextmm program gears.cc(attached) > > > > There's no reason to attach source code that is part of the GtkGLExt > > distribtion to mailing list messages. We know where to find it. :-) > > > >> to > >> a.out, it can start and display successfully, but if i resize the > >> window, a segmentation fault error will occur, here is the error info > >> from valgrind. any advice to solve it? thanks > > > > The actual failure is happening inside of Mesa (presumably) code. > > glXWaitX isn't reasonably close to line 659 in trunk Mesa; so you'll > > need to track this down in the source to whatever version you're using. > > > > You should probably try turning up the verbosity in valgrind to see if > > it will tell you *what* value was uninitialized; though looking at the > > right line 659 might make that apparent. > > thank you for the information, here is the ouput of valgrind, how > could i solve it? and someone said that it's caused by video driver > error, is that possible? As I suggest above, inspect the source for whatever version of Mesa you're using. Find the variable that valgrind is claiming is uninitialized. -- Braden McDaniel <braden@...> _______________________________________________ gtkglext-list mailing list gtkglext-list@... http://mail.gnome.org/mailman/listinfo/gtkglext-list |
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Re: Is it a bug of gtkglext?
by Jean Bréfort
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Might be https://bugs.freedesktop.org/show_bug.cgi?id=21053
Le vendredi 15 mai 2009 à 02:35 -0400, Braden McDaniel a écrit : > On Fri, 2009-05-15 at 11:58 +0800, 明覺 wrote: > > On Wed, May 13, 2009 at 11:14 PM, Braden McDaniel <braden@...> wrote: > > > On Wed, 2009-05-13 at 15:09 +0800, 明覺 wrote: > > >> I compiled the example gtkglextmm program gears.cc(attached) > > > > > > There's no reason to attach source code that is part of the GtkGLExt > > > distribtion to mailing list messages. We know where to find it. :-) > > > > > >> to > > >> a.out, it can start and display successfully, but if i resize the > > >> window, a segmentation fault error will occur, here is the error info > > >> from valgrind. any advice to solve it? thanks > > > > > > The actual failure is happening inside of Mesa (presumably) code. > > > glXWaitX isn't reasonably close to line 659 in trunk Mesa; so you'll > > > need to track this down in the source to whatever version you're using. > > > > > > You should probably try turning up the verbosity in valgrind to see if > > > it will tell you *what* value was uninitialized; though looking at the > > > right line 659 might make that apparent. > > > > thank you for the information, here is the ouput of valgrind, how > > could i solve it? and someone said that it's caused by video driver > > error, is that possible? > > As I suggest above, inspect the source for whatever version of Mesa > you're using. Find the variable that valgrind is claiming is > uninitialized. > _______________________________________________ gtkglext-list mailing list gtkglext-list@... http://mail.gnome.org/mailman/listinfo/gtkglext-list |
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Re: Is it a bug of gtkglext?
by 明覺
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On Fri, May 15, 2009 at 2:35 PM, Braden McDaniel <braden@...> wrote:
> On Fri, 2009-05-15 at 11:58 +0800, 明覺 wrote: >> On Wed, May 13, 2009 at 11:14 PM, Braden McDaniel <braden@...> wrote: >> > On Wed, 2009-05-13 at 15:09 +0800, 明覺 wrote: >> >> I compiled the example gtkglextmm program gears.cc(attached) >> > >> > There's no reason to attach source code that is part of the GtkGLExt >> > distribtion to mailing list messages. We know where to find it. :-) >> > >> >> to >> >> a.out, it can start and display successfully, but if i resize the >> >> window, a segmentation fault error will occur, here is the error info >> >> from valgrind. any advice to solve it? thanks >> > >> > The actual failure is happening inside of Mesa (presumably) code. >> > glXWaitX isn't reasonably close to line 659 in trunk Mesa; so you'll >> > need to track this down in the source to whatever version you're using. >> > >> > You should probably try turning up the verbosity in valgrind to see if >> > it will tell you *what* value was uninitialized; though looking at the >> > right line 659 might make that apparent. >> >> thank you for the information, here is the ouput of valgrind, how >> could i solve it? and someone said that it's caused by video driver >> error, is that possible? > > As I suggest above, inspect the source for whatever version of Mesa > you're using. Find the variable that valgrind is claiming is > uninitialized. I'm using the mesa from its git, that the latest code,(I also used 7.4, 7.5 and 7.6 of mesa, all the similar error), the variable not uninitialized should be psc->driScreen->waitX in line 659 of glxcmds.c if (psc->driScreen->waitX != NULL) any advice? thanks > > -- > Braden McDaniel <braden@...> > > _______________________________________________ > gtkglext-list mailing list > gtkglext-list@... > http://mail.gnome.org/mailman/listinfo/gtkglext-list > -- 我的操作系統是Gnu/Linux Debian/gNewSense Gnome Mozilla Gmail/Evolution Gtkmm/Gtkglextmm Scim Totem Pidgin. _______________________________________________ gtkglext-list mailing list gtkglext-list@... http://mail.gnome.org/mailman/listinfo/gtkglext-list |
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Re: Is it a bug of gtkglext?
by 明覺
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On Fri, May 15, 2009 at 2:54 PM, Jean Bréfort
<jean.brefort@...> wrote: > Might be https://bugs.freedesktop.org/show_bug.cgi?id=21053 not sure, for the bug is not fixed in the lastest mesa code. > > Le vendredi 15 mai 2009 à 02:35 -0400, Braden McDaniel a écrit : >> On Fri, 2009-05-15 at 11:58 +0800, 明�X wrote: >> > On Wed, May 13, 2009 at 11:14 PM, Braden McDaniel <braden@...> wrote: >> > > On Wed, 2009-05-13 at 15:09 +0800, 明�X wrote: >> > >> I compiled the example gtkglextmm program gears.cc(attached) >> > > >> > > There's no reason to attach source code that is part of the GtkGLExt >> > > distribtion to mailing list messages. We know where to find it. :-) >> > > >> > >> to >> > >> a.out, it can start and display successfully, but if i resize the >> > >> window, a segmentation fault error will occur, here is the error info >> > >> from valgrind. any advice to solve it? thanks >> > > >> > > The actual failure is happening inside of Mesa (presumably) code. >> > > glXWaitX isn't reasonably close to line 659 in trunk Mesa; so you'll >> > > need to track this down in the source to whatever version you're using. >> > > >> > > You should probably try turning up the verbosity in valgrind to see if >> > > it will tell you *what* value was uninitialized; though looking at the >> > > right line 659 might make that apparent. >> > >> > thank you for the information, here is the ouput of valgrind, how >> > could i solve it? and someone said that it's caused by video driver >> > error, is that possible? >> >> As I suggest above, inspect the source for whatever version of Mesa >> you're using. Find the variable that valgrind is claiming is >> uninitialized. >> > > _______________________________________________ > gtkglext-list mailing list > gtkglext-list@... > http://mail.gnome.org/mailman/listinfo/gtkglext-list > -- 我的操作系�y是Gnu/Linux Debian/gNewSense Gnome Mozilla Gmail/Evolution Gtkmm/Gtkglextmm Scim Totem Pidgin. _______________________________________________ gtkglext-list mailing list gtkglext-list@... http://mail.gnome.org/mailman/listinfo/gtkglext-list |
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Re: Is it a bug of gtkglext?
by Braden McDaniel
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On Fri, 2009-05-15 at 08:54 +0200, Jean Bréfort wrote:
> Might be https://bugs.freedesktop.org/show_bug.cgi?id=21053 That does look suspicious. Apparently that problem is being observed in Mesa 7.4. I'm running 7.2 (where I'm not observing the problem). I'm also using Nvidia drivers--and so I am probably not impacted by Mesa's DRI code paths anyway. -- Braden McDaniel <braden@...> _______________________________________________ gtkglext-list mailing list gtkglext-list@... http://mail.gnome.org/mailman/listinfo/gtkglext-list |
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Re: Is it a bug of gtkglext?
by Braden McDaniel
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On Fri, 2009-05-15 at 18:38 +0800, 明覺 wrote:
> On Fri, May 15, 2009 at 2:35 PM, Braden McDaniel <braden@...> wrote: > > On Fri, 2009-05-15 at 11:58 +0800, 明覺 wrote: > >> On Wed, May 13, 2009 at 11:14 PM, Braden McDaniel <braden@...> wrote: > >> > On Wed, 2009-05-13 at 15:09 +0800, 明覺 wrote: > >> >> I compiled the example gtkglextmm program gears.cc(attached) > >> > > >> > There's no reason to attach source code that is part of the GtkGLExt > >> > distribtion to mailing list messages. We know where to find it. :-) > >> > > >> >> to > >> >> a.out, it can start and display successfully, but if i resize the > >> >> window, a segmentation fault error will occur, here is the error info > >> >> from valgrind. any advice to solve it? thanks > >> > > >> > The actual failure is happening inside of Mesa (presumably) code. > >> > glXWaitX isn't reasonably close to line 659 in trunk Mesa; so you'll > >> > need to track this down in the source to whatever version you're using. > >> > > >> > You should probably try turning up the verbosity in valgrind to see if > >> > it will tell you *what* value was uninitialized; though looking at the > >> > right line 659 might make that apparent. > >> > >> thank you for the information, here is the ouput of valgrind, how > >> could i solve it? and someone said that it's caused by video driver > >> error, is that possible? > > > > As I suggest above, inspect the source for whatever version of Mesa > > you're using. Find the variable that valgrind is claiming is > > uninitialized. > > I'm using the mesa from its git, that the latest code,(I also used > 7.4, 7.5 and 7.6 of mesa, all the similar error), the variable not > uninitialized should be psc->driScreen->waitX > in line 659 of glxcmds.c if (psc->driScreen->waitX != NULL) > any advice? thanks That sounds like it's almost certainly the bug that Jean pointed out. I suggest applying the patch attached to that bug report. -- Braden McDaniel <braden@...> _______________________________________________ gtkglext-list mailing list gtkglext-list@... http://mail.gnome.org/mailman/listinfo/gtkglext-list |
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Re: Is it a bug of gtkglext?
by 明覺
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On Fri, May 15, 2009 at 10:17 PM, Braden McDaniel <braden@...> wrote:
> On Fri, 2009-05-15 at 18:38 +0800, 明覺 wrote: >> On Fri, May 15, 2009 at 2:35 PM, Braden McDaniel <braden@...> wrote: >> > On Fri, 2009-05-15 at 11:58 +0800, 明覺 wrote: >> >> On Wed, May 13, 2009 at 11:14 PM, Braden McDaniel <braden@...> wrote: >> >> > On Wed, 2009-05-13 at 15:09 +0800, 明覺 wrote: >> >> >> I compiled the example gtkglextmm program gears.cc(attached) >> >> > >> >> > There's no reason to attach source code that is part of the GtkGLExt >> >> > distribtion to mailing list messages. We know where to find it. :-) >> >> > >> >> >> to >> >> >> a.out, it can start and display successfully, but if i resize the >> >> >> window, a segmentation fault error will occur, here is the error info >> >> >> from valgrind. any advice to solve it? thanks >> >> > >> >> > The actual failure is happening inside of Mesa (presumably) code. >> >> > glXWaitX isn't reasonably close to line 659 in trunk Mesa; so you'll >> >> > need to track this down in the source to whatever version you're using. >> >> > >> >> > You should probably try turning up the verbosity in valgrind to see if >> >> > it will tell you *what* value was uninitialized; though looking at the >> >> > right line 659 might make that apparent. >> >> >> >> thank you for the information, here is the ouput of valgrind, how >> >> could i solve it? and someone said that it's caused by video driver >> >> error, is that possible? >> > >> > As I suggest above, inspect the source for whatever version of Mesa >> > you're using. Find the variable that valgrind is claiming is >> > uninitialized. >> >> I'm using the mesa from its git, that the latest code,(I also used >> 7.4, 7.5 and 7.6 of mesa, all the similar error), the variable not >> uninitialized should be psc->driScreen->waitX >> in line 659 of glxcmds.c if (psc->driScreen->waitX != NULL) >> any advice? thanks > > That sounds like it's almost certainly the bug that Jean pointed out. I > suggest applying the patch attached to that bug report. thank you, I have add a command to that bug, and now I solved my problem by installing the non-free video driver from Nivida company, which contains its own opengl library implementation. :( > > -- > Braden McDaniel <braden@...> > > _______________________________________________ > gtkglext-list mailing list > gtkglext-list@... > http://mail.gnome.org/mailman/listinfo/gtkglext-list > -- 我的操作系統是Gnu/Linux Debian/gNewSense Gnome Mozilla Gmail/Evolution Gtkmm/Gtkglextmm Scim Totem Pidgin. _______________________________________________ gtkglext-list mailing list gtkglext-list@... http://mail.gnome.org/mailman/listinfo/gtkglext-list |
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